GB2621611A

GB2621611A - Locking device for opening and closing body

Info

Publication number: GB2621611A
Application number: GB2212001.8A
Authority: GB
Inventors: Ruskys Gintautas
Original assignee: Piolax Ltd
Current assignee: Piolax Ltd
Priority date: 2022-08-17
Filing date: 2022-08-17
Publication date: 2024-02-21
Also published as: GB202212001D0

Abstract

A locking device for a closure such as a glovebox, comprising a casing 20 and a pair of sliding lock rods 50, 60, biased toward a position in which the tip of the rod engages in adjacent surface and slidably via rotary body to a second position in which the rod is retracted to free the closure. A temporary holding unit 38, 66, provided between either the pair of rods or one of the rods and the casing temporarily holds the rods in a retracted pre-assembly state wherein the rods are held to be clear of guide holes 4a in the closure or fixed body to which the locking device is to be installed. A releasing portion 69 on a rod 60 engages with a pressing portion 8 on the closure/fixed body to release the temporary holding unit upon mounting the locking device to the closure/fixed body. The temporary holding unit preferably is bendable/deformable protrusion 38 temporarily retaining protrusion 66 on rod 60 (fig.9).

Description

LOCKING DEVICE FOR OPENING AND CLOSING BODY

TECHNICAL FIELD

[0001] The present invention relates to a locking device for an opening and closing body used for locking an opening and closing body, which is openably and closably attached to an opening portion of a fixed body, to a dosed state

BACKGROUND ART

[0002] For example, an opening and closing body such as a lid is openably and closably attached to an opening portion formed in a fixed body such as a glove box of an automobile. A locking device is provided between the opening portion and the opening and closing body so as to lock the opening and closing body when the opening and closing body is closed and to release the lock when the opening and closing body is to be opened.

[0003] For example, Patent Literature 1 listed below describes a locking device including an operation member that is rotatably supported, a pair of rods that advance to and retract from a lock portion of a fixed member in conjunction with an operation of the operation member, a base member that is fixed to an opening and closing member, and a gear member that is rotatably supported by the base member. The locking device includes a spring member for biasing the pair of rods in an advancing direction, and a stopper structure for stopping advancing of the pair of rods against biasing of the spring member. The stopper structure includes an engaging portion that is engaged to a convex portion provided on the gear member to restrict advancing and retracting of the pair of rods.

[0004] According to the invention of Patent Literature 1, the locking device is attached to the opening and closing member as follows. That is, the pair of rods, the spring member, and the gear member are assembled to the base member, and the engaging portion is engaged to the convex portion of the gear member to form a second subassembly. An entire length of the second subassembly is shorter than a distance between a first support hole portion and a second support hole portion (see paragraph 0043 of Patent Literature 1).

[0005] After the second subassembly is attached to the opening and closing member, the engaging portion is operated to release the engagement with the convex portion of the gear member, whereby the gear member is rotationally biased by the spring member, and the pair of rods advance and are inserted into the first support hole portion and the second support hole portion.

CITATION LIST

PAIENT LITERATURE

[0006] Patent Literature 1: WO 2018/216521A1

S

SUMMARY OF INVENTION

TECHNICAL PROBLEM

[0007] In a case of the locking device of Patent Literature 1, as described above, after the second subassembly is attached to the opening and closing member, engagement between the gear member and the convex portion need to be released by operating the engaging portion, and therefore, the operation is complicated, and attachment workability of the locking device cannot be said to be good.

[0008] Therefore, an object of the present invention is to provide a locking device for an opening and closing body capable of improving workability of attaching the locking device to a fixed body or the opening and closing member.

SOLUTION TO PROBLEM

[0009] In order to achieve the above object, there is provided a locking device for an opening and closing body that is configured to be openably and closably attached to an opening portion of a fixed body. The locking device includes: lock portions configured to be provided in one of the fixed body and the opening and closing body; a casing configured to be disposed on the other of the fixed body and the opening and closing body; a pair of rods, each provided with a hook portion that is configured to engage with and disengage from each lock portion on a tip end portion side and having a base end portion that is supported so as to be slidable with respect to the casing; insertion portions each of which is provided in the fixed body or the opening and closing body on which the casing is disposed, and into which each hook portion of the pair of rods is to be inserted; a rotating body rotatably supported by the casing and configured to slide the pair of rods in conjunction with each other; a biasing unit configured to bias each hook portion of the pair of rods in a direction in which each hook portion is engaged with each lock portion; and a temporary holding unit that is provided between one of the pair of rods and the casing or between the pair of rods when the pair of rods, the rotating body, and the biasing unit are assembled to the casing to form an assembly body, and that is configured to temporarily hold the pair of rods in a state of being slid against a biasing force of the biasing unit such that each hook portion of the pair of rods does not reach each insertion portion. One of the pair of rods includes a release portion configured to release temporary holding caused by the temporary holding unit by being pressed by the fixed body or the opening and closing body when the assembly body is attached to the fixed body or the opening and closing body.

ADVANTAGEOUS EFFECTS OF INVENTION

[0010] According to the present invention, temporary holding of an assembly body caused by a temporary holding unit is automatically released by a release portion of the rod being pressed by the fixed body or the opening and closing body when the assembly body is attached to the fixed body or the opening and closing body, the temporary holding unit temporarily holding the pair of rods in a state where the pair of rods are slid against a biasing force of a biasing unit such that hook portions of the pair of rods do not reach insertion portions Therefore, it is not necessary to manually release the temporary holding caused by the temporary holding unit, so that the workability of attaching the locking device to the fixed body or the opening and closing body can be improved.

BRIEF DESCRIPTION OF DRAWINGS

[0011] FIG. 1 is an exploded perspective view showing a first embodiment of a locking device for an opening and closing body according to the present invention; FIG. 2 is a perspective view of an assembly body of the locking device in a state where a pair of rods are temporarily held; FIG. 3 is a perspective view of the assembly body of the locking device in a case where a temporary holding state of the pair of rods is released; FIGS. 4A and 4B show a casing constituting the locking device, FIG. 4A is an enlarged perspective view thereof, and FIG. 4B is an enlarged perspective view as viewed from a direction different from that of FIG. 4A: FIG. 5 is an enlarged perspective view of a main portion of one of the pair of rods constituting the locking device; FIG 6 is a cross-sectional view taken along an A-A arrow line in FIG. 3; FIG 7 is a cross-sectional view taken along a B-B arrow line in FIG. 3; FIG. 8 shows a releasing process of releasing temporary holding of the pair of rods from a state where the pair of rods are temporarily held, and is an explanatory view of a first process thereof, FIG. 9 shows the releasing process and is an explanatory view of a second process thereof, FIG. 10 shows the releasing process and is an explanatory view of a third process thereof FIG. 11 is an explanatory view showing a relationship between the assembly body and a lock portion of the locking device; FIG. 12 is an explanatory view of a state where the opening and closing body is closed by the locking device; FIG. 13 is an explanatory view of a state where the opening and closing body is opened by the locking device; FIG. 14 is an enlarged perspective view of a main portion showing a second embodiment of the locking device for an opening and closing body according to the present invention; FIG. 15 is an enlarged perspective view of a main portion showing a third embodiment of the locking device for an opening and closing body according to the present invention; FIG. 16 is an enlarged perspective view of a main portion showing a fourth embodiment of the locking device for an opening and closing body according to the present 20 invention; FIG. 17 is an enlarged perspective view of a main portion showing a fifth embodiment of the locking device for an opening and closing body according to the present invention; and FIG. 18 is an enlarged perspective view of a main portion showing a sixth embodiment of the locking device for an opening and closing body according to the present invention

DESCRIPTION OF EMBODIMENTS

[0012] (First Embodiment of Locking Device for Opening and Closing Body) Hereinafter, a first embodiment of a locking device for an opening and closing body according to the present invention will be described with reference to the drawings. [0013] As shown in FIG. 12, a locking device 10 for an opening and closing body (hereinafter, referred to as "the locking device 10") according to the embodiment is used to lock an opening and closing body 4 such as a glove box, which is openably and closably attached to an opening portion 2 of a fixed body 1 such as an instrument panel of a vehicle, in a closed state.

[0014] The locking device 10 according to the embodiment includes: a pair of lock portions 3 and 3 (see FIGS. 12 and 13) provided in the opening portion 2 of the fixed body 1; a casing 20 disposed in the opening and closing body 4; a pair of rods 50 and 60 (a first rod 50 and a second rod 60) in which hook portions 52 and 62 that engage with and disengage from the lock portions 3 and 3 are provided on a tip end portion side and base end portions 53 and 63 are slidably supported with respect to the casing 20; insertion portions 4a and 4a that are provided in the opening and closing body 4 in which the casing 20 is disposed and into which the hook portions 52 and 62 of the pair of rods 50 and 60 are inserted, a rotating body that is rotatably supported by the casing 20 and slides the pair of rods 50 and 60 in conjunction with each other; and a biasing unit that biases each of the hook portions 52 and 62 of the pair of rods 50 and 60 in a direction in which the hook portions 52 and 62 are engaged with the lock portions 3 and 3.

[0015] In addition, according to the embodiment, the lock portions 3 and 3 having a hole shape are provided on inner surfaces of both sides in a width direction of the opening portion 2 of the fixed body 1 (see FIGS 11 to 13). Further, as shown in FIGS. 2 and 11, the insertion portions 4a and 4a having a round hole shape are formed on both side portions in a longitudinal direction of the opening and closing body 4, respectively. Incidentally, the pair of insertion portions 4a and 4a provided in the opening and closing body 4 are disposed so as to be positioned in inner sides of the pair of lock portions 3 and 3 provided in the fixed body 1 (see FIGS. 12 and 13).

[0016] In addition, as shown in FIGS. 1 and 2, a plurality of retaining portions 5 that retain the casing 20, a pair of positioning protrusions 6 and 6 that position the casing 20, and a pair of displacement restricting portions 7 and 7 that restrict displacement of the casing 20 are provided from predetermined positions of an inner surface (a surface facing the casing 20, the pair of rods 50 and 60, and the like) of the opening and closing body 4.

[0017] In a case of the embodiment, as shown in FIGS 1 and 2, a pair of retaining portions 5 and 5 are disposed in parallel along a sliding direction S of the pair of rods 50 and 60 (hereinafter, also simply referred to as the "rod sliding direction S"), and two sets of the retaining portions 5 and 5 are provided (a total of four retaining portions 5 are provided). Each of the retaining portions 5 is bendable and deformable, and a claw portion 5a is provided at a tip end portion in an extending direction of the retaining portion 5. The claw portion 5a is engaged with a later-described engaging step portion 25 of the casing 20 (see FIG. 4A). [0018] In addition, each of the positioning protrusions 6 has a circular protrusion shape. Further, the pair of displacement restricting portions 7 and 7 have a substantially L-shaped frame shape, and are engaged with corner portions positioned on a diagonal line of alater-described casing 20 having a substantially quadrangular frame shape (see FIG. 4A). [0019] As shown in FIGS. 1 and 2, a pressing portion 8 is provided so as to protrude from a position, on the inner surface of the opening and closing body 4, different from those of the above-mentioned retaining portions 5 and the like.

[0020] The pressing portion 8 according to the embodiment has a substantially triangular protrusion shape. That is, the pressing portion 8 has a shape in which one side surface thereof is a surface orthogonal to the inner surface of the opening and closing body 4, and the other side surface on an opposite side is provided with a pressing surface 9 having a tapered surface shape of which a protrusion amount gradually decreases from a top portion protruding highest from the inner surface of the opening and closing body 4 toward the inner surface of the opening and closing body 4.

[0021] Returning to the description of the locking device 10, the rotating body according to the embodiment is a pinion gear 80. As shown in FIG. 7, the pinion gear 80 includes a gear main body 81 having teeth formed on an outer periphery thereof, and a pair of support shafts 82 and 82 protruding from centers of both end surfaces in an axial direction of the pinion gear 80.

[0022] In addition, the biasing unit according to the embodiment is a coil spring 90 formed by winding a wire. The coil spring 90 biases the hook portions 52 and 62 of the pair of rods and 60 in a direction in which the hook portions 52 and 62 are engaged with the lock portions 3 and 3 (see an arrow Fl in FIG. 12).

[0023] Further, the locking device 10 is provided with an operation member (not shown) that directly rotates the rotating body or indirectly rotates the rotating body via the first rod 50 or the second rod 60 to separate the hook portions 52 and 62 of the pair of rods 50 and 60 against the biasing force of the biasing unit so as not to engage with the pair of lock portions 3 and 3.

[0024] The operation member according to the embodiment indirectly rotates the pinion gear 80 by sliding one of the first rod 50 and the second rod 60, and slides the other of the first rod 50 and the second rod 60, thereby separating the hook portions 52 and 62 from the lock portions 3 and 3 against the biasing force of the coil spring 90.

[0025] The operation member includes, for example, a housing to be attached to the opening and closing body 4, an operation lever rotatably supported with respect to the housing, and a pressing protrusion provided on the operation lever and capable of pressing one of the rods 50 and 60.

[0026] In addition, as shown in FIG 2, when the pair of rods 50 and 60, the pinion gear 80 as the rotating body, and the coil spring 90 as the biasing unit are assembled to the casing 20 to form the assembly body 100, the locking device 10 includes a temporary holding unit that is provided between the second rod 60 and the casing 20, and temporarily holds the pair of rods 50 and 60 in a state of being slid against the biasing force of the biasing unit such that the hook portions 52 and 62 thereof do not reach the insertion portions 4a and 4a (see FIG. 11). [0027] Further, the second rod 60 constituting the locking device 10 includes a release portion 69 that releases the temporary holding caused by the temporary holding unit by being pressed by the opening and closing body 4 when the assembly body 100 is attached to the opening and closing body 4. In addition, when the temporary holding caused by the temporary holding unit is released by the release portion 69, the hook portions 52 and 62 of the pair of rods 50 and 60 biased by the biasing force of the biasing unit are inserted into the insertion portions 4a and 4a. Details thereof will be described later.

[0028] As described above, the assembly body 100 is formed by assembling the pair of rods 50 and 60, the pinion gear 80 which is a rotating body, and the coil spring 90 which is a biasing unit to the casing 20 and integrating those.

[0029] In the following description, the term "sliding" for each of the rods 50 and 60 means sliding along the above-mentioned rod sliding direction S. [0030] Next, the casing 20 will be described with reference to FIGS. 1, 4A and 4B, 6, 7, etc. [0031] The casing 20 according to the embodiment includes. a pair of facing wall portions 21 and 22 that are disposed facing each other so as to be parallel to each other and extend in the sliding direction S by a predetermined length; and a pair of connecting wall portions 23 and 24 that connect the pair of facing wall portions 21 and 22 The casing 20 has a substantially quadrangular frame shape in which both ends in the rod sliding direction S (also referred to as an extending direction of the casing 20) are opened.

[0032] Incidentally, the extending direction of the casing 20 has the same meaning in other portions (a rotating body pressing piece 32, a pressing piece 36, and the like) constituting the casing 20. A direction orthogonal to the extending direction of the casing 20 is referred to as a "width direction H" in the following description (see FIGS. 4A and 4B).

[0033] Further, a stepped engaging step portion 25 extending along the extending direction of the casing 20 is formed at four corner portions of the casing 20, that is, at connection portions between adjacent wall portions. As shown in FIG. 4A, the claw portions 5a of the four retaining portions 5 provided in the opening and closing body 4 are respectively engaged with the pair of left and right engaging step portions 25 and 25 positioned on a facing wall portion 22 side, and thus the casing 20 is retained and held by the opening and closing body 4. In addition, the pair of displacement restricting portions 7 and 7 provided on an opening and closing body 4 side are engaged with outer sides of the corner portions positioned on the diagonal line of the casing 20, and thus the displacement of the casing 20 is restricted. [0034] In addition, a pair of ridges 26 and 26 extending along the extending direction thereof are respectively formed from an inner surface (a surface facing the mating wall portion) of each of the facing wall portions 21 and 22. Further, guide grooves 27 and 27 having a recessed groove shape are respectively formed along the extending direction of the casing 20 at positions adjacent to the pair of ridges 26 and 26 and outside in the width direction H, which are on the inner surface of each of the facing wall portions 21 and 22. [0035] Further, as shown in FIG. 4B, positioning holes 28 and 29 having a circular hole shape are formed at both end portion sides in the extending direction at a central position in the width direction H of the facing wall portion 21. An inner diameter of the positioning hole 28 is formed larger than an inner diameter of the positioning hole 29. Corresponding positioning protrusions 6 and 6 are respectively inserted into the positioning holes 28 and 29 to position the casing 20 with respect to the opening and closing body 4.

[0036] As shown in FIG. 4B, a rotating body support hole 30 having a circular hole shape is formed between the pair of positioning holes 28 and 29 at a central position in the width direction H of the facing wall portion 21. The rotating body support hole 30 rotatably supports one support shaft 82 of the pinion gear 80.

[0037] Further, as shown in FIG. 4A, a slit 31 is formed from one end portion (an end portion on the right side of the paper surface in FIG. 4A) side in the extending direction of the facing wall portion 22 toward the other end portion side in the extending direction, and the rotating body pressing piece 32, which has a substantially elongated plate shape and is bendable and deformable, is provided via the slit 31. In the rotating body pressing piece 32, a fixed end (a base end) thereof is connected to one end portion side of the facing wall portion 22 in the extending direction, and a free end (a tip end) is disposed toward the other end portion of the facing wall portion 22 in the extending direction.

[0038] In addition, a concave portion 32a recessed in a curved surface shape is formed in the free end of the rotating body pressing piece 32. Further, a concave portion 33 recessed in a curved surface shape is also formed at a position, of the facing wall portion 22, facing the concave portion 32a of the rotating body pressing piece 32. The other support shaft 82 of the pinion gear 80 is rotatably supported by the concave portions 32a and 33.

[0039] In addition, as shown in FIG. 4A, a plurality of biasing unit support portions 34 are provided so as to protrude from an end surface of the other end portion of the casing 20 in the extending direction According to the embodiment, four biasing unit support portions 34 having a protrusion shape are provided so as to protrude from the other end surfaces of the facing wall portions 21 and 22 in the extending direction and the other end surface of the connecting wall portion 24 in the extending direction. An inner surface of each of the biasing unit support portions 34 is a tapered surface 34a.

[0040] As shown in FIGS. 2 and 3, the plurality of biasing unit support portions 34 are disposed on an outer periphery of one end portion of the coil spring 90 in the longitudinal direction in a state where the coil spring 90 is interposed between the casing 20 and the first rod 50, and restrict displacement of the one end portion of the coil spring 90.

[0041] In addition, as shown in FIG. 4A, a slit 35 having a substantially U shape is formed from the other end portion of the connecting wall portion 23 in the extending direction toward one end portion of the connecting wall portion 23 in the extending direction, and further, as shown in FIG. 6, a slit 35 having a substantially U shape is also formed from one end portion of the connecting wall portion 24 in the extending direction toward the other end portion of the connecting wall portion 24 in the extending direction. Pressing pieces 36, each of which has a substantially elongated plate shape and is bendable and deformable, are formed on the connecting wall portions 23 and 24 via the above-mentioned slits 35, respectively.

[0042] In the pressing piece 36 on a connecting wall portion 23 side, a fixed end (a base end) is disposed at the other end portion of the connecting wall portion 23 in the extending direction, and a free end (a tip end) is disposed toward one end portion of the connecting wall portion 23 in the extending direction. In the pressing piece 36 on a connecting wall portion 24 side, a fixed end is disposed at one end portion of the connecting wall portion 23 in the extending direction, and a free end is disposed toward the other end portion of the connecting wall portion 23 in the extending direction (see FIG. 6).

[0043] In addition, as shown in FIG. 4A, a direction along a plate thickness of the connecting wall portion 23 is referred to as a "thickness direction T". This also applies to a temporary holding piece 38 or the like provided on the connecting wall portion 23 and a later-described temporary holding portion 66 or the like of the second rod 60 related to the temporary holding piece 38 (see FIG. 5).

[0044] Further, as shown in FIG. 6, a pressing protrusion 36a is provided so as to protrude from the inner surface of the free end of each pressing piece 36.

[0045] As shown in FIG. 6, the pressing piece 36 on the connecting wall portion 23 side presses the base end portion 63 of the second rod 60 toward the pinion gear 80 by the pressing protrusion 36a thereof, and the pressing piece 36 on the connecting wall portion 24 side presses the base end portion 53 of the first rod 50 toward the pinion gear 80 by the pressing protrusion 36a thereof [0046] In addition, as shown in FIG. 4A, a cutout portion 37 having a substantially U-shape is formed at one end portion of the connecting wall portion 23 in the extending direction. The temporary holding piece 38 extends along the rod sliding direction S from a position on a bottom surface of the cutout portion 37, which is slightly deviated to the facing wall portion 21 side.

[0047] As shown in FIG. 4A, the temporary holding piece 38 is wide in the thickness direction T of the connecting wall portion 23 and has an elongated plate shape (also can be said to have a belt shape) extending along the rod sliding direction S, the fixed end (the base end) thereof is connected to the bottom surface of the cutout portion 37, and the free end thereof is disposed toward the one end portion of the connecting wall portion 23 in the extending direction, and the temporary holding piece 38 is bendable and deformable. The temporary holding piece 38 is provided over the entire region of the connecting wall portion 23 in the thickness direction T. [0048] The temporary holding piece 38 according to the embodiment is bendable and deformable in a direction approaching an inner surface of the cutout portion 37 on the facing wall portion 21 side as indicated by an arrow in FIG. 4A and FIG. 9. According to the embodiment, among the plurality of wall portions 21, 22, 23, and 24 constituting the casing 20, the connecting wall portion 24 forms a "wall portion of the casing" forming the temporary holding piece in the present invention.

[0049] A temporary holding convex portion 39 having a convex shape is provided so as to protrude from a side surface facing the facing wall portion 22 side in the middle of the extending direction of the temporary holding piece 38. An outer surface of the temporary holding convex portion 39 has a curved surface shape with a predetermined curvature. In addition, the temporary holding convex portion 39 is provided over the entire region of the temporary holding piece 38 in the thickness direction T (see FIG. 4A).

[0050] As shown in FIG. 8, the temporary holding convex portion 39 of the temporary holding piece 38 is fitted to a later-described temporary holding concave portion 67 of the temporary holding portion 66 provided in the second rod 60 in a concave-convex manner. As a result, as shown in FIG. 11, the hook portions 52 and 62 of the pair of rods 50 and 60 in the assembly body 100 is temporarily held in a state where the hook portions 52 and 62 are slid against the biasing force of the coil spring 90 so as not to reach the pair of insertion portions 4a and 4a (this state is also referred to as a "rod temporary holding state" in the following description).

[0051] That is, the above-mentioned temporary holding piece 38 is one of elements of the "temporary holding unit" in the present invention. The operation and the like of the temporary holding unit will be described later.

[0052] Next, the first rod 50 will be described with reference to FIGS. 1 to 3, FIGS. 6 and 7, etc. [0053] The first rod 50 according to the embodiment includes a rod main body 51 extending in a predetermined length, and a hook portion 52 extending in a crank shape is continuously provided from a tip end in an extending direction thereof via a bent portion 52a (see FIGS. 11 to 13). The rod main body 51 is provided with a frame-shaped rib 51a having a frame shape. A pressing protrusion of an operation lever constituting an operation member (not shown) is inserted into the frame-shaped rib 51a. A tip end surface of the hook portion 52 has a tapered surface shape [0054] In addition, the base end portion 53 that extends coaxially with the rod main body 51 is provided so as to extend from a base end of the rod main body 51 in the extending direction. The base end portion 53 includes a base portion 53a having a substantially cylindrical shape and an extension portion 53b having an elongated plate shape extending from the base portion 53a. The base portion 53a is a portion that supports the other end portion of the coil spring 90 in the longitudinal direction.

[0055] As shown in FIG. 3, in the coil spring 90, one end portion in the longitudinal direction abuts against the other end portion of the casing 20 in the extending direction and is supported in a state where the four biasing unit support portions 34 are disposed on the outer periphery of the coil spring 90, and the other end portion in the longitudinal direction is supported by the base portion 53a of the base end portion 53 of the first rod 50 as described above. As a result, the coil spring 90 is disposed in a compressed state coaxially with the axial direction of the first rod 50 (coaxially with a portion of the first rod 50 excluding the hook portion 52) between the casing 20 and the base end portion 53 of the first rod 50.

[0056] Therefore, as indicated by the arrow Fl in FIG. 12, the hook portion 52 of the first rod 50 is biased in a direction in which the hook portion 52 is engaged with the lock portion 3, and the hook portion 62 of the second rod 60 is also biased in a direction in which the hook portion 62 is engaged with the lock portion 3 via the pinion gear 80.

[0057] Further, a pair of guide ribs 54 and 54 are provided along the extending direction from both side edge portions of the extension portion 536 of the base end portion 53. As shown in FIG. 7, the pair of guide ribs 54 and 54 are slidably inserted into the guide grooves 27 and 27 positioned close to the connecting wall portion 24 of the casing 20, respectively, and sliding operation of the first rod 50 is guided. In addition, a rack gear 55 that meshes with the teeth of the gear main body 81 of the pinion gear 80 is formed on a surface of the extension portion 53b of the base end portion 53 facing the pinion gear 80.

[0058] Next, the second rod 60 will be described with reference to FIGS. 1 to 3, FIGS. 5 to 7, etc. [0059] The second rod 60 according to the embodiment includes a rod main body 61 extending in a predetermined length, and a hook portion 62 extending in a crank shape is continuously provided from a tip end in an extending direction thereof via a bent portion 62a (see FIGS. 11 to 13). The rod main body 61 is provided with a frame-shaped rib 61a having a frame shape. A pressing protrusion of an operation lever of an operation member (not shown) is inserted into the frame-shaped rib 61a. A tip end surface of the hook portion 62 has a tapered surface shape.

[0060] In addition, the base end portion 63 that extends coaxially with the rod main body 61 is provided so as to extend from a base end of the rod main body 61 in the extending direction. The base end portion 63 includes a base portion 63a having a substantially cylindrical shape and an extension portion 63b having an elongated plate shape extending from the base portion 63a.

[0061] Further, a pair of guide ribs 64 and 64 are provided along the extending direction from both side edge portions of the extension portion 63b of the base end portion 63 As shown in FIG. 7, the pair of guide ribs 64 and 64 are slidably inserted into the guide grooves In 27 and 27 positioned close to the connecting wall portion 23 of the casing 20, respectively, and sliding operation of the second rod 60 is guided.

[0062] In addition, a rack gear 65 that meshes with the teeth of the gear main body 81 of the pinion gear 80 is formed on a surface of the extension portion 63b of the base end portion 63 facing the pinion gear 80. As described above, the pinion gear 80 also meshes with the rack gear 55 of the first rod 50. Therefore, when the pinion gear 80 rotates in a predetermined direction, the pair of rods 50 and 60 slide in conjunction with each other (synchronously) via the rack gears 55 and 65.

[0063] Further, in the case of the embodiment, the operation lever of the operation member (not shown) is operated and the pressing protrusion thereof presses the inner surface of the frame-shaped rib 61a on a second rod 60 side or the inner surface of the frame-shaped rib 51a on a first rod 50 side, so that one of the second rod 60 and the first rod 50 slides against the biasing force of the coil spring 90, and in conjunction with this, the other of the second rod 60 and the first rod 50 also slides via the pinion gear 80. Incidentally, in a state where a hand releases from the operation lever of the operation member (not shown), the pair of rods 50 and 60 are pushed out again in a direction in which the hook portions 52 and 62 engage with the corresponding lock portions 3 and 3 by the biasing force of the coil spring 90.

[0064] As shown in FIG. 5, the temporary holding portion 66 is provided so as to extend in the rod sliding direction S (the extending direction of the base end portion 63) from the tip end of the base portion 63a on a surface of the extension portion 63b constituting the base end portion 63 on a side opposite to the rack gear 65.

[0065] As shown in FIG. 8, the temporary holding portion 66 enters the cutout portion 37 provided in the casing 20 and is disposed adjacent to the temporary holding piece 38 so as to be parallel to the temporary holding piece 38. The temporary holding portion 66 is formed into a rigid body in which the base end thereof is connected to the tip end surface of the base portion 63a of the base end portion 63, one side surface in the thickness direction T is also connected to one side surface of the base end portion 63 (see FIG. 5), and bending and deformation do not occur.

[0066] The temporary holding concave portion 67 having a concaved shape is formed in a surface of the tip end portion of the temporary holding portion 66 in the extending direction, the surface facing the temporary holding piece 38. An inner surface of the temporary holding concave portion 67 is a curved surface that conforms to an outer surface of the temporary holding convex portion 39. In addition, the temporary holding concave portion 67 is provided over the entire region of the temporary holding portion 66 in the thickness direction T (see FIG. 5).

[0067] The temporary holding convex portion 39 of the temporary holding piece 38 provided on the casing 20 is fitted to the above-mentioned temporary holding concave portion 67 in a concave-convex manner (see FIG. 8). In this way, as a result of the temporary holding convex portion 39 and the temporary holding concave portion 67 being fitted with each other in a concave-convex manner, the pair of rods 50 and 60 are temporarily held in the assembly body 100 so as to be in the rod temporary holding state (see FIG. 11). That is, the temporary holding portion 66 is also one of the elements of the "temporary holding unit" in the present invention [0068] The temporary holding portion 66 is configured so as not to protrude from the outer surface of the connecting wall portion 23 forming the casing 20 in the thickness direction T when the temporary holding piece 38 and the temporary holding portion 66 are temporarily held and the rod temporary holding state is established. The temporary holding piece 38 provided on a casing 20 side is also configured so as not to protrude from the outer surface of the connecting wall portion 23 forming the casing 20 in the thickness direction Tin the above-mentioned temporary holding state.

[0069] Further, as shown in FIG. 5, at a position of the rod main body 61 adjacent to the base end portion 63, a pressing portion receiving groove 68 is formed in which one side portion (a lower side in FIG. 5) of the second rod 60 in the width direction IA is opened and the pressing portion 8 provided in the opening and closing body 4 can be received.

[0070] On an inner surface of the pressing portion receiving groove 68 close to a rod tip end portion, the release portion 69 is provided to release the temporary holding caused by the temporary holding unit by being pressed by the pressing surface 9 of the pressing portion 8.

The release portion 69 has a tapered surface shape extending obliquely from one side edge portion of the second rod 60 in the width direction H toward the other side portion of the second rod 60 in the width direction H and toward the base end side of the second rod 60 in the extending direction. An inclination angle of the release portion 69 having a tapered surface shape with respect to the rod sliding direction S is an angle that conforms to the pressing surface 9 of the pressing portion 8.

[0071] Incidentally, the pair of rods 50 and 60 are brought into the rod temporary holding state as follows.

[0072] That is, the pair of rods 50 and 60 and the pinion gear 80 are assembled to the casing 20, and the coil spring 90 is disposed between the casing 20 and the base end portion 53 of the first rod 50 to form the assembly body 100, and then the second rod 60 is slid (pushed) in a direction in which the temporary holding portion 66 provided on the second rod 60 approaches the temporary holding piece 38 provided on the casing 20 against the biasing force of the coil spring 90.

[0073] Then, the tip end portion of the temporary holding portion 66 which has entered the cutout portion 37 presses the temporary holding convex portion 39, thereby bending and deforming the temporary holding piece 38 in a direction in which the temporary holding piece 38 approaches the inner surface of the cutout portion 37 on the facing wall portion 21 side, and when the temporary holding concave portion 67 climbs over the temporary holding convex portion 39, the temporary holding piece 38 is elastically restored, and the temporary holding convex portion 39 and the temporary holding concave portion 67 are fitted to each other in a concave-convex manner.

[0074] As a result, as shown in FIG. 8, the hook portions 52 and 62 of the pair of rods 50 and 60 in the assembly body 100 are temporarily held in a state where the hook portions 52 and 62 are slid against the biasing force of the coil spring 90 so as not to reach the pair of insertion portions 4a and 4a (see FIG. 11).

[0075] In addition, the above-mentioned release portion 69 is configured to, when the assembly body 100 is attached to the opening and closing body 4, release the temporary holding between the temporary holding piece 38 and the temporary holding portion 66 by being pressed by the opening and closing body 4 to slide one of the pair of rods 50 and 60 (here, the second rod 60) in a direction (F1 direction) in which the one of the pair of rods 50 and 60 is biased by the biasing unit.

[0076] The releasing operation in the rod temporary holding state of the assembly body 100 by the release portion 69 is performed as follows.

[0077] That is, as shown in FIG. 2, the casing 20 of the assembly body 100 in the rod temporary holding state is aligned with the four retaining portions 5, the pair of positioning protrusions 6 and 6, and the pair of displacement restricting portions 7 and 7 that are provided on the opening and closing body 4, and the release portion 69 of the second rod 60 of the assembly body 100 is aligned with the pressing portion 8 provided on the opening and closing body 4, and then, as indicated by an arrow F2 in FIG. 2, the assembly body 100 is brought close to the opening and closing body 4 (the assembly body 100 is pressed against the opening and closing body 4).

[0078] After the four retaining portions 5 are bent and deformed, the claw portions 5a thereof are engaged with the engaging step portions 25 and 25 positioned on the facing wall portion 22 side of the casing 20 to retain and hold the casing 20 by the opening and closing body 4, and the pair of displacement restricting portions 7 and 7 are engaged with the outer sides of the corner portions positioned on the diagonal line of the casing 20 to restrict the displacement of the casing 20 (see FIG. 4A), and further, the corresponding positioning protrusions 6 and 6 are respectively inserted into the positioning holes 28 and 29 of the casing 20 to position the casing 20 with respect to the opening and closing body 4. As described above, when the assembly body 100 is pressed against the opening and closing body 4, the hook portions 52 and 62 of the pair of rods 50 and 60 are not hooked by the pair of insertion portions 4a and 4a provided in the opening and closing body 4.

[0079] At the same time, the pressing surface 9 of the pressing portion 8 presses the release portion 69 of the second rod 60. At this time, a pressing force from the pressing surface 9 having a tapered surface shape (a force in a direction opposite to an arrow F2 in FIG. 8) is applied to the release portion 69 also having a tapered surface, thereby converting the pressing force into a rightward force on the paper surface of FIG. 8. As a result, as indicated by an arrow Fl in FIG. 8, the second rod 60 forcibly slides the base end portion 63 thereof in a direction away from the one end portion of the casing 20 in the extending direction, that is, an F I direction in which the base end portion 63 is biased by the coil spring 90 serving as the biasing unit.

[0080] Then, since an inner surface of the temporary holding concave portion 67 of the temporary holding portion 66 presses the temporary holding convex portion 39 of the temporary holding piece 38, as shown in FIG. 9, the temporary holding piece 38 is bent and deformed in a direction approaching the inner surface of the cutout portion 37 on the facing wall portion 21 side. Thereafter, when the temporary holding convex portion 39 climbs over the temporary holding concave portion 67, the concave-convex fitting between the temporary holding convex portion 39 and the temporary holding concave portion 67 is released, and the rod temporary holding state caused by the temporary holding unit is released.

[0081] As a result, the bent and deformed temporary holding piece 38 is elastically restored, and as shown in FIG. 10, the second rod 60 slides in a direction in which the hook portion 62 thereof is engaged with the lock portion 3 by the biasing force of the coil spring 90. In addition, in conjunction with the sliding operation of the second rod 60, the first rod 50 also slides in a direction in which the hook portion 52 thereof is engaged with the lock portion 3 via the pinion gear 80. As a result, as shown in FIG. 12, the hook portions 52 and 62 of the pair of rods 50 and 60 are inserted from the inner side of the pair of insertion portions 4a and 4a, pass through the same pair of insertion portions 4a and 4a, and are pushed out so as to be able to engage with the lock portions 3 and 3, thereby completing an operation of attaching the assembly body 100 to the opening and closing body 4.

[0082] The locking device 10 has a structure in which after the locking device 10 is attached to the opening and closing body 4, the temporary holding piece 38 and the temporary holding portion 66 are not temporarily held again even if the pair of rods 50 and 60 are maximally pulled in such a manner that the hook portions 52 and 62 are not engaged with the corresponding lock portions 3 and 3 against the biasing force of the coil spring 90 by operating the operation member (not shown) [0083] (Modification) Shapes, structures, layouts, and the like of the lock portion, the casing, the rod, the insertion portion, the rotating body, portions (the wall portion, the pressing piece, the temporary holding piece, and the like) constituting the casing, and portions (the rod main body, the hook portion, the rack gear, the temporary holding portion, the release portion, and the like) constituting the rod, which constitute the locking device for an opening and closing body according to the present invention, are not limited to the above-mentioned embodiments. [0084] In addition, according to the embodiment, as described above, for example, the present invention is applied to a structure in which a box-shaped glove box is rotatably attached to the opening portion of the instrument panel (in this case, the instrument panel forms the "fixed body" and the glove box forms the "opening and closing body"), but the present invention may be applied to a structure in which the lid is openably and closably attached to the opening portion of the instrument panel (in this case, the instrument panel forms the "fixed body" and the lid forms the "opening and closing body"), and can be widely used for various opening and closing bodies that open and close the opening portion of the fixed body [0085] Further, according to the embodiment, the lock portion 3 is provided on a fixed body 1 side, and the casing 20 is disposed on the opening and closing body 4 side, but the casing may be disposed on the fixed body side, and the lock portion may be provided on the opening and closing body side. In addition, the insertion portion 4a is provided in the opening and closing body 4, but the insertion portion may be provided in the fixed body side, and may be provided in a member (the fixed body or the opening and closing body) on which the casing is disposed.

[0086] Further, the lock portion 3 according to the embodiment has a hole shape, but the lock portion may not be formed in a hole shape, and may be formed in a concaved shape, a protrusion shape, a frame shape, or the like. In addition, the insertion portion 4a according to the embodiment has a round hole shape, but the insertion portion may be formed in, for example, a square hole or the like, or may be formed in a cutout or the like instead of a hole, as long as the hook portions of the pair of rods can be inserted [0087] Further, in the case of the embodiment, the rotating body is the pinion gear 80, but for example, as a rotor rotatably supported by a casing, a fixed body, or an opening and closing body, base end portions of a pair of rods may be connected to the rotor. In this case, the rotor can be directly rotated by the operation member to slide the pair of rods.

[0088] In addition, the biasing unit according to the embodiment is the coil spring 90, and is interposed between the casing 20 and the base end portion 53 of the first rod 50 to bias the hook portion 52 of the first rod 50 in a direction in which the hook portion 52 is engaged with the lock portion 3, but for example, the coil spring 90 may be interposed between the casing and the base end portion 53 of the second rod 60 to bias the hook portion 62 of the second rod 60 in a direction in which the hook portion 62 is engaged with the lock portion 3.

Further, in a case where the rotating body is the rotor as described above, the biasing unit may be, for example, a torsion spring, and may bias the hook portions of the pair of rods in a direction in which the hook portions are engaged with the lock portions by rotationally biasing the rotor. In addition, as the biasing unit, not only the coil spring but also, for example, a tension spring or the like that pulls one rod toward the lock portion side may be used.

[0089] Further, in the case of the embodiment, the temporary holding unit is provided between the second rod 60 and the casing 20 (the temporary holding portion 66 provided in the second rod 60 and the temporary holding piece 38 provided in the casing 20), but the temporary holding unit may be provided between the pair of rods (this will be described in a third embodiment shown in FIG 15 to be described later).

[0090] In addition, in the case of the embodiment, the temporary holding piece 38 is provided on the casing 20 side, and the temporary holding portion 66 is provided on the second rod 60 side, but the temporary holding piece may be provided on one of the pair of rods, and the temporary holding portion may be provided on the casing side (this will be described in a second embodiment shown in FIG 14 and a fourth embodiment shown in FIG. 16 to be described later).

[0091] Further, shapes, structures, layouts, and the like of the temporary holding piece and the temporary holding portion are not particularly limited, and may be embodiments shown in FIGS. 14 to 18.

[0092] In addition, the temporary holding piece 38 according to the embodiment, the temporary holding piece 70 according to the second embodiment shown in FIG. 14, the temporary holding piece 74 according to the fourth embodiment shown in FIG. 16, the temporary holding piece 43 according to a fifth embodiment shown in FIG. 17, and the temporary holding piece 45 according to a sixth embodiment shown in FIG. 18 are each bent and deformed, but a configuration in which the temporary holding portion 56 is bent and deformed may be adopted as in the third embodiment shown in FIG. 15. That is, a configuration in which the temporary holding portion is bent and deformed instead of the temporary holding piece may be adopted.

[0093] Further, according to the embodiment, the rod temporary holding state of the pair of rods 50 and 60 is released by the release portion 69 provided in the second rod 60 being pressed by the opening and closing body 4 when the assembly body 100 is attached to the opening and closing body 4, but the temporary rod holding state of the pair of rods may be released by the release portion being pressed by the fixed body when the assembly body is attached to the fixed body.

[0094] In addition, the release portion 69 according to the embodiment has a tapered surface shape, but the shape, the structure, the layout, and the like of the release portion are not limited to this aspect, and any configuration may be adopted as long as the temporary holding caused by the temporary holding unit can be released by pressing the release portion to the fixed body or the opening and closing body when the assembly body is attached to the fixed body or the opening and closing body. For example, the release portion may be a flat surface parallel to the rod sliding direction S, or may be a reverse tapered surface (a tapered surface extending obliquely toward the tip end side of the rod in the extending direction) opposite to the tapered surface shown in FIG. 8. In addition, the release portion may be provided on the first rod 50 side.

[0095] Further, the pressing portion 8 according to the embodiment has a shape including the pressing surface 9 having a substantially triangular protrusion shape and a tapered surface shape, but the pressing portion may be formed in, for example, a columnar pin shape or the like, and may be formed in any shape as long as the pressing portion can press the release portion provided on the rod side.

[0096] (Function and Effect) Next, the function and effect of the locking device 10 having the above-mentioned configuration will be described.

[0097] First, the operation of attaching the locking device 10 to the opening and closing body 4 will be described.

[0098] First, the pair of rods 50 and 60 are brought into the temporary holding state That is, as described in paragraphs 0072 to 0074, in a state where the pair of rods 50 and 60, and the like are assembled to the casing 20 to form the assembly body 100, the second rod 60 is slid against the biasing force of the coil spring 90, and the temporary holding convex portion 39 of the temporary holding piece 38 and the temporary holding concave portion 67 of the temporary holding portion 66 are fitted in a concavo-convex manner (see FIG. 8), thereby the hook portions 52 and 62 of the pair of rods 50 and 60 are temporarily held in a state of being slid against the biasing force of the coil spring 90 so as not to reach the pair of insertion portions 4a and 4a (see FIG. 11).

[0099] Next, the assembly body 100 in the above-mentioned state is attached to the opening and closing body 4. That is, as described in paragraphs 0077 to 0081, after the casing 20 is aligned with the retaining portion 5, the positioning protrusion 6, and the like on the opening and closing body 4 side and the release portion 69 of the second rod 60 is aligned with the pressing portion 8 on the opening and closing body 4 side, the assembly body 100 is brought close to the opening and closing body 4 as indicated by the arrow F2 in FIG. 2. Thus, the casing 20 is retained and positioned and held to the opening and closing body 4 by the retaining portion 5, the positioning protrusion 6, and the like, and the pressing portion 8 presses the release portion 69 to slide the second rod 60 in the Fl direction (see FIG. 8).

[0100] As a result, as shown in FIG. 9, the temporary holding piece 38 is bent and deformed and the concave-convex fitting between the temporary holding convex portion 39 and the temporary holding concave portion 67 is released, and as shown in FIG. 10, the second rod 60 slides in the Fl direction by the biasing force of the coil spring 90, and the first rod 50 also slides in the Fl direction. Thus, as shown in FIG. 12, the hook portions 52 and 62 of the pair of rods 50 and 60 are inserted into the pair of insertion portions 4a and 4a, and are pushed out so as to be able to engage with the lock portions 3 and 3, thereby completing the operation of attaching the assembly body 100 to the opening and closing body 4.

[0101] According to the above-mentioned invention, in the locking device 10, the temporary holding unit (the temporary holding piece 38 and the temporary holding portion 66) that temporarily holds the pair of rods 50 and 60 of the assembly body 100 in a state where the hook portions 52 and 62 thereof are slid against the biasing force of the biasing unit so as not to reach the insertion portions 4a and 4a is provided, and the temporary holding caused by the temporary holding unit is automatically released by the release portion 69 being pressed by the fixed body 1 or the opening and closing body 4 (here, pressed by the opening and closing body 4) when the assembly body 100 is attached to the fixed body 1 or the opening and closing body 4 (here, when the assembly body 100 is attached to the opening and closing body 4).

[0102] Therefore, since it is not necessary for an operator to manually release the rod temporary holding state caused by the temporary holding unit, the workability of attaching the locking device 10 to the fixed body 1 or the opening and closing body 4 can be improved.

[0103] In addition, according to the embodiment, the temporary holding unit includes the temporary holding piece 38 extending in the rod sliding direction S and the temporary holding portion 66 with which the temporary holding piece 38 is engaged, the temporary holding piece 38 and the temporary holding portion 66 are provided in the second rod 60 and the casing 20, and the temporary holding piece 38 is bendable and deformable. The release portion 69 is configured to, when the assembly body 100 is attached to the opening and closing body 4, release the temporary holding between the temporary holding piece 38 and the temporary holding portion 66 by being pressed by the opening and closing body 4 to slide one of the pair of rods 50 and 60 (here, the second rod 60) in a direction (F1 direction) in which the one of the pair of rods 50 and 60 is biased by the biasing unit.

[0104] According to the above aspect, when the assembly body 100 is attached to the opening and closing body 4, the release portion 69 is pressed by the opening and closing body 4, thereby sliding the second rod 60 in a biasing direction by the biasing unit to release the temporary holding between the temporary holding piece 38 and the temporary holding portion 66, so that structures of the temporary holding unit and the release portion 69 can be simplified. That is, the temporary holding and the temporary holding release between the temporary holding piece 38 and the temporary holding portion 66 are performed by using the sliding operation of the second rod 60, so that the temporary holding unit and the release portion 69 can be simplified.

[0105] In addition, the temporary holding piece 38 is configured to extend in the rod sliding direction S, so that the locking device 10 can be made compact. That is, the extending direction of the temporary holding piece 38 and the rod sliding direction S coincide with each other, so that the temporary holding piece 38 can be suppressed from becoming bulky in a direction intersecting the rod sliding direction S, and the locking device 10 is made compact.

[0106] Further, according to the embodiment, in the rod temporary holding state described above, the temporary holding piece 38 and the temporary holding portion 66 are configured so as not to protrude from the outer surface of the wall portion (here, the connecting wall portion 23) forming the casing 20 in the thickness direction T. [0107] According to the above aspect, in the rod temporary holding state, the temporary holding piece 38 and the temporary holding portion 66 are configured not to protrude from the outer surface of the connecting wall portion 23 of the casing 20 in the thickness direction T. Therefore, an increase in size of, in particular, the casing 20 in the locking device 10 can be suppressed, and the locking device 10 can be made more compact.

[0108] In addition, according to the embodiment, the rotating body is the pinion gear 80, the rack gears 55 and 65 with which the pinion gear 80 meshes are formed on the base end portions 53 and 63 of the pair of rods 50 and 60, the casing 20 has a frame shape, and the pressing pieces 36 and 36 that press the base end portions 53 and 63 of the pair of rods 50 and 60 toward the rotating body side are provided [0109] According to the above aspect, the pressing pieces 36 and 36 that press, toward the rotating body side, the base end portions 53 and 63 of the pair of rods 50 and 60 on which the rack gears 55 and 65 are formed are provided in the casing 20 having a frame shape, so that the pinion gear 80 can be meshed with the rack gears 55 and 65 while suppressing rattling (see FIG. 6), and abnormal noise during rotation of the pinion gear 80 can be suppressed.

[0110] In addition, since the casing 20 is provided with the pressing pieces 36 and 36 that press the base end portions 53 and 63 of the pair of rods 50 and 60 toward the rotating body side, an overall structure of the locking device 10 can be made compact (for example, when such a pressing piece is provided outside the casing, the locking device may be bulky and enlarged).

[0111] In addition, according to the embodiment, the biasing unit is the coil spring 90, and is disposed coaxially with the axial direction of the first rod 50 between the base end portion 53 of the first rod 50 and the casing 20.

[0112] According to the above aspect, the biasing unit is the coil spring 90, and is disposed coaxially with the axial direction of the first rod 50 between the base end portion 53 of the first rod 50 and the casing 20, so that the biasing force of the biasing unit can be directly transmitted along the rod sliding direction S of the first rod 50 without being biased, and the sliding operation of the pair of rods 50 and 60 is smoothly performed.

[0113] That is, the pair of rods 50 and 60 can be smoothly slid when the temporary holding of the pair of rods 50 and 60 is released from the temporary holding state and the pair of rods and 60 are pushed out by the biasing unit of the coil spring 90, or when the pair of rods 50 and 60 are pushed out by the biasing force of the coil spring 90 such that the hook portions 52 and 62 are engaged with the lock portions 3 and 3 again after the hook portions 52 and 62 of the pair of rods 50 and 60 are pulled in from the lock portions 3 and 3.

[0114] In addition, compaction of the locking device 10 can be facilitated (for example, the locking device 10 is made compact compared to a structure in which a rod is not disposed at the center of the coil spring 90, that is, at an inner side of the coil spring 90, and one end of the coil spring is engaged in the middle of the axial direction of the rod).

[0115] In the locking device 10, the opening and closing body 4 is closed from a state where the opening and closing body 4 is opened from the opening portion 2 of the fixed body 1, and the hook portions 52 and 62 of the pair of rods 50 and 60 are engaged with the lock portions 3 and 3 of the fixed body I (see FIG. 12), thereby locking the opening and closing body 4 in a state where the opening and closing body 4 is closed with respect to the opening portion 2.

[0116] In this state, when the operation lever of the operation member (not shown) is operated, one of the first rod 50 and the second rod 60 is slid against the biasing force of the coil spring 90, and the other of the first rod 50 and the second rod 60 is slid via the pinion gear 80 in conjunction therewith, thereby pulling the hook portions 52 and 62 of both the rods 50 and 60 in a direction in which the hook portions 52 and 62 are not engaged with the lock portions 3 and 3 (see FIG. 13), so that the locked state of the opening and closing body 4 is released, and the opening and closing body 4 can be opened from the opening portion 2 [0117] (Second Embodiment of Locking Device for Opening and Closing Body) FIG. 14 shows a second embodiment of the locking device for an opening and closing body according to the present invention Substantially the same portions as those in 30 the above-described embodiment are denoted by the same reference signs, and description thereof is omitted.

[0118] A locking device 10A for an opening and closing body according to the embodiment (hereinafter, simply referred to as the "locking device 10A") is different from the above-described embodiment in a structure of a temporary holding unit.

[0119] That is, as shown in FIG. 14, the temporary holding piece 70, which has an elongated plate shape and is bendable and deformable, extends from a predetermined side surface (a side surface opposite to a lower opening of the pressing portion receiving groove 68) of the base end portion 63 of the second rod 60. In addition, a temporary holding hole 71 having a circular hole shape is formed in the tip end portion of the temporary holding piece 70 in the extending direction.

[0120] On the other hand, a temporary holding portion 40 having a circular protrusion shape is provided so as to protrude at a position corresponding to the temporary holding hole 71 of the temporary holding piece 70 on the outer surface of the facing wall portion 22 of the casing 20.

[0121] Then, the above-mentioned temporary holding portion 40 is fitted into the temporary holding hole 71 from an inner side of the temporary holding piece 70, thereby the hook portions 52 and 62 of the pair of rods 50 and 60 in the assembly body 100 are temporarily held in a state where the hook portions 52 and 62 are slid against the biasing force of the coil spring 90 so as not to reach the pair of insertion portions 4a and 4a.

[0122] That is, according to the embodiment, the temporary holding portion 40 provided on the casing 20 side and the temporary holding piece 70 provided on the second rod 60 side constitute the "temporary holding unit" according to the present invention.

[0123] In addition, in the locking device 10A, when the assembly body 100 is attached to the opening and closing body 4, the pressing portion 8 presses the release portion 69, and the second rod 60 is slid in the Fl direction, the temporary holding portion 40 bends and deforms the temporary holding piece 70, and the temporary holding portion 40 moves out from the temporary holding hole 71, and thus the temporary holding is released by the temporary holding portion 40 and the temporary holding piece 70.

[0124] (Third Embodiment of Locking Device for Opening and Closing Body) FIG. 15 shows a third embodiment of the locking device for an opening and closing body according to the present invention. Substantially the same portions as those in the above-described embodiment are denoted by the same reference signs, and description thereof is omitted.

[0125] A locking device 10B of an opening and closing body according to the embodiment (hereinafter, simply referred to as the "locking device 10B") has a configuration in which a temporary holding unit is provided between the pair of rods 50 and 60.

[0126] That is, as shown in FIG. 15, the temporary holding portion 56 having an elongated plate shape is provided so as to extend from the tip end surface of the base end portion 53 of the first rod 50, and a temporary holding protrusion 57 is provided so as to protrude from the tip end portion in the extending direction. The above-mentioned temporary holding portion 56 is bendable and deformable.

[0127] On the other hand, a temporary holding piece 72 having a quadrangular frame shape is erected from a side surface of the base end portion 63 of the second rod 60 corresponding to the temporary holding portion 56 provided in the first rod 50. A temporary holding hole 73 having a quadrangular hole shape is formed in the temporary holding piece 72.

[0128] Then, the temporary holding portion 56 is inserted into the temporary holding hole 73 of the temporary holding piece 72, and the temporary holding protrusion 57 is engaged with an inner peripheral edge portion of the temporary holding hole 73, thereby the hook portions 52 and 62 of the pair of rods 50 and 60 in the assembly body 100 are temporarily held in a state where the hook portions 52 and 62 are slid against the biasing force of the coil spring 90 so as not to reach the pair of insertion portions 4a and 4a.

[0129] That is, according to the embodiment, the temporary holding portion 56 provided on the first rod 50 side and the temporary holding piece 72 provided on the second rod 60 side constitute the "temporary holding unit" according to the present invention [0130] In addition, in the locking device 10B, when the assembly body 100 is attached to the opening and closing body 4, the pressing portion 8 presses the release portion 69, and the second rod 60 is slid in the Fl direction, the temporary holding portion 56 is bent and deformed via the temporary holding protrusion 57 engaged with the inner peripheral edge portion of the temporary holding hole 73, and the temporary holding protrusion 57 moves out from the temporary holding hole 73, and thus the temporary holding between the temporary holding portion 56 and the temporary holding piece 72 is released.

[0131] Further, according to the embodiment, the temporary holding unit includes the temporary holding piece 72 provided on the second rod 60, and the temporary holding portion 56 provided on the first rod 50 and engaged with the temporary holding piece 72, the temporary holding portion 56 being bendable and deformable The release portion 69 is configured to, when the assembly body 100 is attached to the opening and closing body 4, release the temporary holding between the temporary holding piece 72 and the temporary holding portion 56 by sliding the second rod 60 in a direction biased by the biasing unit. [0132] According to the above aspect, since it is not necessary to provide a temporary holding unit on the casing 20 side, the shape and structure of the casing 20 can be simplified, and rigidity of the casing 20 can be improved.

[0133] (Fourth Embodiment of Locking Device for Opening and Closing Body) FIG. 16 shows a fourth embodiment of the locking device for an opening and closing body according to the present invention. Substantially the same portions as those in the above-described embodiment are denoted by the same reference signs, and description thereof is omitted [0134] A locking device 10C for an opening and closing body according to the embodiment (hereinafter, simply referred to as the "locking device 10C") is different from the above-described embodiment in a structure of a temporary holding unit.

[0135] That is, as shown in FIG. 16, a temporary holding portion 41 having a quadrangular hole shape is formed on one end portion side of the connecting wall portion 23 of the casing 20 in the extending direction.

[0136] On the other hand, a temporary holding piece 74, which has an elongated plate shape and is bendable and deformable, is provided so as to extend to a side surface corresponding to the temporary holding portion 41 provided in the casing 20 on the base end portion 63 side of the second rod 60. In addition, a temporary holding protrusion 75 that engages with the temporary holding portion 41 is provided so as to protrude from the outer surface of the tip end portion of the temporary holding piece 74 in the extending direction.

[0137] Then, the temporary holding piece 74 is inserted into an inner side of the connecting wall portion 23 of the casing 20, and the temporary holding protrusion 75 is engaged with the inner peripheral edge portion of the temporary holding portion 41 from an inner side of the temporary holding portion 41, thereby the hook portions 52 and 62 of the pair of rods 50 and 60 in the assembly body 100 are temporarily held in a state where the hook portions 52 and 62 are slid against the biasing force of the coil spring 90 so as not to reach the pair of insertion portions 4a and 4a.

[0138] That is, according to the embodiment, the temporary holding portion 41 provided on the casing 20 side and the temporary holding piece 74 provided on the second rod 60 side constitute the "temporary holding unit" according to the present invention [0139] In addition, in the locking device 10C, when the assembly body 100 is attached to the opening and closing body 4, the pressing portion 8 presses the release portion 69, and the second rod 60 is slid in the El direction, the temporary holding piece 74 is bent and deformed via the temporary holding protrusion 75 engaged with the inner peripheral edge portion of the temporary holding portion 41, and the temporary holding protrusion 75 moves out from the temporary holding portion 41, and thus the temporary holding between the temporary holding portion 41 and the temporary holding piece 74 is released.

[0140] (Fifth Embodiment of Locking Device for Opening and Closing Body) FIG. 17 shows a fifth embodiment of the locking device for an opening and closing body according to the present invention. Substantially the same portions as those in the above-described embodiment are denoted by the same reference signs, and description thereof is omitted.

[0141] A locking device IOD for an opening and closing body according to the embodiment (hereinafter, simply referred to as the "locking device 10D") is different from the above-described embodiment in a structure of a temporary holding unit.

[0142] That is, as shown in FIG. 17, a pair of slits 42 and 42 extending parallel to each other are formed in one end portion of the connecting wall portion 23 of the casing 20 in the extending direction, and a temporary holding piece 43, which has an elongated plate shape and is bendable and deformable, extends through the pair of slits 42 and 42. The temporary holding piece 43 extends longer than one end surface of the casing 20 in the extending direction. In addition, a temporary holding protrusion 44 is provided so as to protrude from the inner surface of the tip end portion of the temporary holding piece 43 in the extending direction.

[0143] On the other hand, a guide groove 76 that slidably guides the temporary holding piece 43 is formed on a side surface corresponding to the temporary holding piece 43 provided on the casing 20 on the base end portion 63 side of the second rod 60, and a stepped temporary holding portion 77 with which the temporary holding protrusion 44 is engaged is provided on the base end portion of the guide groove 76.

[0144] Then, the temporary holding protrusion 44 of the temporary holding piece 43 disposed in the guide groove 76 is engaged with the temporary holding portion 77, thereby the hook portions 52 and 62 of the pair of rods 50 and 60 in the assembly body 100 are temporarily held in a state where the hook portions 52 and 62 are slid against the biasing force of the coil spring 90 so as not to reach the pair of insertion portions 4a arid 4a [0145] That is, according to the embodiment, the temporary holding piece 43 provided on the casing 20 side and the temporary holding portion 77 provided on the second rod 60 side constitute the "temporary holding unit" according to the present invention [0146] In addition, in the locking device 10D, when the assembly body 100 is attached to the opening and closing body 4, the pressing portion 8 presses the release portion 69, and the second rod 60 is slid in the Fl direction, the stepped temporary holding portion 77 bends and deforms the temporary holding piece 43 via the temporary holding protrusion 44, and the temporary holding protrusion 44 is detached from the temporary holding portion 77, and thus the temporary holding between the temporary holding piece 43 and the temporary holding portion 77 is released.

[0147] (Sixth Embodiment of Locking Device for Opening and Closing Body) FIG. 18 shows a sixth embodiment of the locking device for an opening and closing body according to the present invention. Substantially the same portions as those in the above-described embodiment are denoted by the same reference signs, and description thereof is omitted.

[0148] A locking device 10E for an opening and closing body according to the embodiment (hereinafter, simply referred to as the "locking device 10E") is different from the above-described embodiment in a structure of a temporary holding unit.

[0149] In the case of the embodiment, the pressing piece 36 provided in the casing 20 forms the temporary holding piece 45. That is, as shown in FIG. 18, the temporary holding piece 45 extending in an elongated plate shape and being bendable and deformable is formed on the connecting wall portion 23 of the casing 20 via the slit 35 having a substantially U shape. In addition, as shown in the cross-sectional perspective view of FIG. 18, a temporary holding protrusion 46 is provided so as to protrude from the inner surface of the tip end portion of the temporary holding piece 45 in the extending direction.

[0150] On the other hand, as shown in the cross-sectional perspective view of FIG. 18, a pair of recessed grooves 78 and 78 extending in parallel to each other are formed in a side surface of the base end portion 63 of the second rod 60 corresponding to the temporary holding piece 45 formed in the casing 20, and further, a temporary holding portion 79 having a recessed groove shape is provided at a position close to the rod tip end portion of the pair of recessed grooves 78 and 78 so as to be orthogonal to the pair of recessed grooves 78 and 78. [0151] Then, as shown in the cross-sectional perspective view of FIG. 18, the temporary holding protrusion 46 of the temporary holding piece 45 which has entered the temporary holding portion 79 is engaged with a temporary holding surface 79a of the temporary holding portion 79 that is positioned close to the base end portion of the rod, thereby the hook portions 52 and 62 of the pair of rods 50 and 60 in the assembly body 100 are temporarily held in a state where the hook portions 52 and 62 are slid against the biasing force of the coil spring 90 so as not to reach the pair of insertion portions 4a and 4a.

[0152] That is, according to the embodiment, the temporary holding piece 45 provided on the casing 20 side and the temporary holding portion 79 provided on the second rod 60 side constitute the "temporary holding unit" according to the present invention.

[0153] In addition, in the locking device 10E, when the assembly body 100 is attached to the opening and closing body 4, the pressing portion 8 presses the release portion 69, and the second rod 60 is slid in the Fl direction, the temporary holding surface 79a of the temporary holding portion 79 presses the temporary holding protrusion 46, the temporary holding piece 45 is bent and deformed, and the temporary holding protrusion 46 is detached from the temporary holding portion 79, and thus the temporary holding between the temporary holding piece 45 and the temporary holding portion 79 is released.

[0154] Incidentally, in the cases of the second to sixth embodiments described above, a concave portion, a groove, a slit, or the like may be provided on the outer surface, the inner surface, or both surfaces of the temporary holding piece 70 (see FIG. 14) according to the second embodiment, the temporary holding portion 56 (see FIG. 15) according to the third embodiment, the temporary holding piece 74 (see FIG. 16) according to the fourth embodiment, the temporary holding piece 43 (see FIG. 17) according to the fifth embodiment, and the temporary holding piece 45 (see FIG. 18) according to the sixth embodiment, which are bendable and deformable. In such cases, bending and deformation performance of the temporary holding pieces and the temporary holding portion can be enhanced, and the temporary holding can be smoothly released.

[0155] The present invention is not limited to the embodiment described above, and various modified embodiments can be made within the scope of the gist of the present invention, and such embodiments are also included in the scope of the present invention.

REFERENCE SIGNS LIST

[0156] 1: Fixed body 2: Opening portion 3: Lock portion 4: Opening and closing body 4a: Insertion portion 8: Pressing portion 10, 10A, 10B, 10C, 10D, 10E: Locking device for opening and closing body (Locking device) 20: Casing 36, 36 Pressing piece 38, 43, 45: Temporary holding piece 40, 41: Temporary holding portion 50: First rod 52: Hook portion 53: Base end portion 55: Rack gear 56: Temporary holding portion 60: Second rod 62: Hook portion 63: Base end portion 65: Rack gear 66: Temporary holding portion 69: Release portion 70, 72, 74 Temporary holding piece 77, 79: Temporary holding portion 80: Pinion gear 90: Coil spring (Biasing unit) 100: Assembly body

Claims

CLAIMS1. A locking device for an opening and closing body that is configured to be openably and closably attached to an opening portion of a fixed body, the locking device comprising: lock portions configured to be provided in one of the fixed body and the opening and dosing body; a casing configured to be disposed on the other of the fixed body and the opening and closing body; a pair of rods, each provided with a hook portion that is configured to engage with and disengage from each lock portion on a tip end portion side and having a base end portion that is supported so as to be slidable with respect to the casing; insertion portions each of which is provided in the fixed body or the opening and closing body on which the casing is disposed, and into which each hook portion of the pair of rods is to be inserted, a rotating body rotatably supported by the casing and configured to slide the pair of rods in conjunction with each other; a biasing unit configured to bias each hook portion of the pair of rods in a direction in which each hook portion is engaged with each lock portion, and a temporary holding unit that is provided between one of the pair of rods and the casing or between the pair of rods when the pair of rods, the rotating body, and the biasing unit are assembled to the casing to form an assembly body, and that is configured to temporarily hold the pair of rods in a state of being slid against a biasing force of the biasing unit such that each hook portion of the pair of rods does not reach each insertion portion, wherein one of the pair of rods includes a release portion configured to release temporary holding caused by the temporary holding unit by being pressed by the fixed body or the opening and closing body when the assembly body is attached to the fixed body or the opening and closing body.
2. The locking device for the opening and closing body according to claim 1, wherein the temporary holding unit includes: a temporary holding piece extending in a sliding direction of the pair of rods; and a temporary holding portion configured to be engaged with the temporary holding piece, the temporary holding piece and the temporary holding portion are provided on one of the pair of rods and the casing, or are provided on the pair of rods, one of the temporary holding piece and the temporary holding portion is bendable and deformable, and the release portion is configured to release the temporary holding between the temporary holding piece and the temporary holding portion by sliding one of the pair of rods in a direction in which the one of the pair of rods is biased by the biasing unit, by being pressed by the fixed body or the opening and closing body when the assembly body is attached to the fixed body or the opening and closing body.
3. The locking device for the opening and closing body according to claim 2, wherein in a state of the temporary holding, the temporary holding piece and the temporary holding portion are provided so as not to protrude from an outer surface in a thickness direction of a wall portion forming the casing.
4. The locking device for the opening and closing body according to claim 1, wherein the temporary holding unit includes: a temporary holding piece provided on one of the pair of rods; and a temporary holding portion provided on the other of the pair of rods and configured to be engaged with the temporary holding piece, one of the temporary holding piece and the temporary holding portion is bendable and deformable, and the release portion is configured to release the temporary holding between the temporary holding piece and the temporary holding portion by sliding one of the pair of rods in a direction in which the one of the pair of rods is biased by the biasing unit, by being pressed by the fixed body or the opening and closing body when the assembly body is attached to the fixed body or the opening and closing body.
5. The locking device for the opening and closing body according to any one of claims Ito 4, wherein the rotating body is a pinion gear, rack gears with which the pinion gear meshes are formed at the base end portions of the pair of rods, and the casing has a frame shape, and is provided with pressing pieces configured to press the base end portions of the pair of rods toward a side of the rotating body.
6. The locking device for an opening and closing body according to any one of claims 1 to 4, wherein the biasing unit is a coil spring, and is disposed coaxially with an axial direction of the rods between the base end portion of one of the pair of rods and the casing.