HK1110639B - Device for guiding plate-like object - Google Patents

Description

Device for guiding plate-like objects

Technical Field

The present invention relates to a guide device for guiding one or more plate-like objects in left and right directions.

Background

Patent document 1 discloses a guide device for a plurality of sliding doors (plate-like objects) for opening and closing an opening portion of a main body such as a window or furniture. The plurality of sliding doors are flush with each other when they are all in the closed position (set position). The guide guides the sliding door from the closed position to an opening preparation position (preparation position) before or after the closed position and from the opening preparation position to an open position (non-set position) on the left or right side of the opening preparation position.

As shown in fig. 21 to 30 of patent document 1, the guide device in patent document 1 includes a plurality of rotatable rails supported as a primary guide mechanism in a lower edge portion of an opening portion of a main body and rollers (rollers) supported in a lower edge portion of each sliding door.

The plurality of rotatable rails are formed in a horizontally elongated shape extending in right and left side directions. The rotatable rail is disposed in a straight line in the right and left direction and is rotatably supported between a horizontal lying position (first rotational position) and a vertical standing position (second rotational position) around a first rotational axis extending in the right and left direction.

Each rotatable rail includes a receiving slot extending in a longitudinal direction of the rotatable rail. One side of the receiving groove (the side near the rotation axis) functions as a slide. The rotatable track further includes an auxiliary track spaced 90 degrees from the runway about the first axis of rotation.

The roller is rotatably supported around a second rotation axis parallel to the first rotation axis.

When the sliding door is in the closed position, the corresponding rotatable rail is in the horizontal lying position and the roller is received in the receiving groove of the rotatable rail.

When the sliding door is in the opening preparation position, the corresponding rotatable rail is in the vertical upright position, and the rollers received in the receiving grooves of the rotatable rail ride on the slide.

When the sliding door is moved from the opening preparation position to the opening position, the roller is transferred from the slide of the corresponding rotatable rail to the auxiliary rail of the other rotatable rail adjacent to the corresponding rotatable rail.

In order to return the sliding door from the open position to the opening preparation position, the respective rotatable rails must be maintained in the vertical upright position. To meet this requirement, the guide apparatus of patent document 1 includes a structure for maintaining the rotatable rail in a vertically upright position. As shown in fig. 24 of patent document 1, the guide rail holding structure includes a ball member accommodated in a receiving hole of the rotatable guide rail and a compression coil spring that urges the ball member in a protruding direction. The ball is fitted into the recessed portion of the rail supporting portion on the main body side, thereby maintaining the rotatable rail in the upright position.

Patent document 1: international Publication No. WO 2004/099540

Disclosure of Invention

Technical problem to be solved by the invention

However, in the guide rail holding structure described in patent document 1, once the ball is disengaged from the recessed portion of the guide rail supporting portion by an external force, the rotatable guide rail cannot be returned to the upright position. Therefore, this structure has a drawback that it prevents the sliding door from returning to the opening preparation position.

Means for solving the problems

The present invention is directed to solving the above-mentioned problems. According to the present invention, there is provided a guide device for guiding a movement of a plate-like object 3 with respect to a main body 1 between a stop position and a ready position before or after the stop position, and between the ready position and a non-stop position in a left or right direction of the ready position, the device comprising: a rotatable rail 20 formed in an elongated shape extending horizontally in right and left directions and supported by the main body such that the rotatable rail is rotatable between a first rotational position and a second rotational position around a first rotational axis L1 extending in right and left directions, the rotatable rail including a receiving groove 25 extending in a longitudinal direction of the rotatable rail, a side portion of the receiving groove being provided as a slide 25 b; a runner 40 supported by the plate-like object so that the runner can turn around a second rotation axis L2 parallel to the first rotation axis L1; and an adjacent part 20 arranged adjacent to the rotatable rail and having an auxiliary track 26 extending in the right and left direction, the auxiliary track being continuous with the slideway of the rotatable rail when the rotatable rail is in the second rotational position. When the plate-like object 3 is in the stop position, the rotatable rail 20 is in the first rotational position and the runner 40 is received in the receiving groove 25 of the rotatable rail. When the plate-like object is in the ready position, the rotatable rail is in the second rotational position, and the runner is received in the receiving groove of the rotatable rail and rides on the slide 25 b. When the plate-like object is moved from the ready position to the non-stop position, the runner is displaced from the chute onto the auxiliary track 26. The guiding device further comprises: a biasing member 18 biasing the rotatable rail 20 toward the second rotational position; and a stop member 13 for holding the rotatable rail 20 in a second rotational position against the biasing member.

According to another aspect of the present invention, there is provided a guide apparatus for guiding each of a plurality of plate-like objects 3, which are flush with each other and aligned in right and left directions when all of the plurality of plate-like objects are in a stopping position, to move with respect to a main body 1 between the stopping position and a standby position before or after the stopping position and between the standby position and a non-stopping position in a left or right direction of the standby position, the guide apparatus comprising: a plurality of rotatable rails 20 formed in an elongated shape extending horizontally in right and left directions and arranged in line in the right and left directions and supported by the main body such that each rotatable rail is rotatable between a first rotational position and a second rotational position around a first rotational axis L1 extending in the right and left directions; the runner 40 supported by each of the plurality of plate-like objects is such that the runner can be swiveled about the second rotation axis L2 parallel to the first rotation axis L1. Each rotatable rail comprises: a receiving groove 25 extending in the longitudinal direction of the rotatable rail. One side portion of the receiving groove is provided as a slide 25 b. Each rotatable rail further includes an auxiliary track 26 spaced from the runway by the same angle as between the first and second rotational positions about the first rotational axis. When each plate-like object 3 is in the stop position, the corresponding one of the rotatable rails 20 is in the first rotational position, and the runner 40 is received in the receiving groove 25 of the corresponding rotatable rail. When each plate-like object is in the ready position, the corresponding one of the rotatable rails is in the second rotational position, and the runner is received in the receiving groove of the corresponding rotatable rail and rides on the slide 25 b. When each plate-like object is moved from the stand-by position to the non-stop position, the runner is transferred from the runner of the corresponding rotatable rail to the auxiliary rail 26 of the other rotatable rail adjacent to the corresponding rotatable rail. The guide apparatus further includes a biasing member 18 biasing the rotatable rail 20 toward the second rotational position; and a stop member 13 for holding the rotatable rail 20 in a second rotational position against the biasing member.

In both aspects of the invention mentioned above, when the plate-like object is in the non-stop position, even if the rotatable rail is rotated from the second rotational position toward the first rotational position due to an external force, the rotatable rail can be immediately returned to the second rotational position by means of the biasing member. Thus, the plate-like object can be returned from the non-stop position to the stop position.

Preferably, the rotatable rail 20 includes receiving holes 21 opened at left and right ends of the rotatable rail. A pair of rail support portions 11, each including a bearing portion 12b fitted in a receiving hole of the rotatable rail, are mounted on the main body 1 in such a manner as to sandwich the rotatable rail 20 and rotatably support the rotatable rail 20. The biasing member 18 is accommodated in the receiving hole at a position deeper than the bearing portion.

In this configuration, the biasing member is received in the receiving hole, and thus is prevented from being worn.

Preferably, the biasing member includes a torsion spring 18 having one end intercepted (baincauht) at an end surface of the bearing portion 12b and the other end intercepted at an inner periphery of the receiving hole 21.

In this configuration, the structure of the biasing member is simple, and the structure of the intercepting biasing member is also simple.

A distal end of a support pin 19 preferably having a flange 19a is fastened to the rail supporting portion 11, the support pin protruding from an end surface of the bearing portion 12b along the first rotation axis L1, the support pin passing through a torsion spring 18 inside the receiving hole 21 of the rotatable rail 20, the torsion spring being disposed between the bearing portion and the flange of the support pin. A catch groove (catch groove)22, into which the other end of the torsion spring 18 is inserted, is formed in an inner periphery of the receiving hole 21 of the rotatable rail 20 to extend in a longitudinal direction of the rotatable rail 20.

This arrangement allows the torsion spring to be conveniently and securely assembled within the rotatable track.

Preferably, the guide further comprises an elongated bumper 90 received within the receiving bore 21 of the rotatable rail 20, the bumper comprising a shaft 91, a tubular member 92 disposed on the outer periphery of the shaft, and a viscous drag material filling the gap between the outer periphery of the shaft and the inner and outer peripheries of the tubular member. The shaft 91 is fixed to the rail supporting portion 11 and projects from the end surface of the bearing portion 12b along the first rotation axis L1, and the shaft 91 passes through the torsion spring 18. The tubular member 92 is prevented from rotating relative to the inner periphery of the receiving bore of the rotatable rail.

In this configuration, when the plate-like object moves between the stop position and the ready position, the impact due to the weight of the plate-like object can be absorbed by the bumper.

Preferably, the ramp 25b is generally directly above the first axis of rotation L1 when the rotatable rail 20 is in the second rotational position. In this configuration, when the plate-like object is in the ready position, the rotatable rail in the second rotational position is not affected by the weight of the plate-like object, and can be securely held in the second rotational position by the biasing member.

Preferably, the rotatable rail has a flat cross-sectional shape, which in the first rotational position is horizontally collapsed and in the second rotational position is vertically upright. Preferably, the runner has a flat shape and falls horizontally when the rotatable rail is in the first rotational position and stands vertically when the rotatable rail is in the second rotational position.

An opening portion (opening section)2x corresponding to the plate-like object which is closed when the plate-like object is located at the stopper position and which is opened when the plate-like object is located at the non-stopper position is preferably formed in the main body 1.

More preferably, the primary guide mechanism 5 is provided in one of the upper and lower edge portions of the opening portion 2x, and the secondary guide mechanism 6 is provided in the other of the upper and lower edge portions of the opening portion. The primary guide mechanism includes a rotatable rail 20 provided in one of upper and lower edge portions of the opening portion and a runner 40 provided in one of upper and lower edge portions of the plate-like object 3. The secondary guide mechanism includes a first guide passage 65 provided in the other of the upper and lower edge portions of the opening portion, the first guide passage extending in the front and rear directions, a second guide passage 61g extending in the right and left directions and intersecting the first guide passage, and a slider 70 provided in the other of the upper and lower edge portions of the plate-like object 3. The slide block is guided by the first guide channel to perform a movement with a vertical displacement in the front and rear directions when the plate-like object is moved between the stop position and the ready position, and is guided by the second guide channel to move in the right and left directions when the plate-like object is moved between the ready position and the non-stop position.

This arrangement can guide the plate-like object safely.

Effects of the invention

According to the present invention, the rotatable rail can be reliably maintained in the second rotational position, which can reliably return the plate-like object in the non-stop position to the ready position.

Drawings

FIG. 1 is a front view of a spaced apart portion of a guide according to one embodiment of the present invention;

FIG. 2 is an enlarged vertical cross-sectional view of the guide shown in FIG. 1 taken along line II-II, showing the sliding door in the closed position;

FIG. 3 is an enlarged vertical cross-sectional view of the guide showing the sliding door in an open ready position;

FIG. 4 is an enlarged vertical cross-sectional view of the guide showing one sliding door in a closed position and the other sliding door in an open position, with the sliding doors overlapping one another;

FIG. 5 is an enlarged front view of the lower structure of the guide showing the rotatable track in the upright position and the sliding door in the ready-to-open position;

FIG. 6 is an enlarged front view of the lower structure of the guide showing the rotatable track in the upright position and the sliding door in the open position;

FIG. 7 is an enlarged cross-sectional view of the positioning mechanism with the sliding door in the ready position for opening;

FIG. 8 is an enlarged plan view of the positioning device with the sliding door in the open ready position, with a partial cross-section shown;

FIG. 9 is an enlarged rear view of the rollers and support mechanism with the sliding door in the closed position and the rotatable track in the horizontal position;

FIG. 10 is an exploded side view of the rotatable rail and support mechanism;

FIG. 11 is an exploded front view of the support mechanism for the rotatable rail and torsion spring, with a partial cross-section shown;

FIG. 12 is an enlarged front view of the upper structure of the guide;

FIG. 13 is a plan view of the sliding door;

fig. 14 shows the components of the upper structure of the guide device, and fig. 14(a) is a cross-sectional view of the first guide rail; fig. 14(B) is a side view of the joint metal provided at the opposite end of the first rail; fig. 14(C) is a side view of the bonding metal provided at the middle portion of the first rail; FIG. 14(D) is a cross-sectional view of the second rail;

fig. 15(a) is a plan view of the joint metal provided at the opposite end of the first rail; fig. 15(B) is a plan view of the joint metal provided at the middle portion of the first rail;

FIG. 16 is an exploded front view of the support mechanism and torsion spring of the rotatable rail of the guide apparatus according to the second embodiment of the present invention;

FIG. 17 is an assembled cross-sectional view of the support mechanism and torsion spring of the rotatable rail of the guide apparatus of the second embodiment of the present invention;

fig. 18 is a cross-sectional view of a rotatable rail used in the second embodiment.

Description of the reference numerals

1 frame

2x opening part

2 sliding door (plate-shaped object)

11 support (guide support part)

12b bearing part

18 torsion spring (biasing member)

19 support pin

19a flange

20 rotatable guide rail

21 receiving hole

22 detent groove

25 receiving groove

25b slide

26 auxiliary track

40 contact roller (operation piece)

60 guide rail assembly

65 gap (first guide channel)

61g guide groove (second guide channel)

70 slide block

90 buffer

91 axle

92 tubular member

L1 first axis of rotation

L2 second axis of rotation

Detailed Description

An embodiment of the present invention will be described below with reference to the accompanying drawings. The partition shown in fig. 1 is used to partition a space such as a room. The partition portion includes a horizontal long rectangular frame 1 (main body). The frame 1 is composed of an upper frame portion 1a and a lower frame portion 1b, both extending horizontally, while left and right frame portions 1c, 1d extend vertically. Left and right frame portions 1c, 1d extend downward to serve as support posts, and the lower ends of the frame portions are fixed to a floor (not shown) placed on the ground.

The horizontally long opening 2 defined by the frame 1 is closed by a plurality of sliding doors, such as four sliding doors 3 (plate-like objects), arranged in the right and left direction. The sliding door 3 is formed of a vertically long rectangular plate of the same size. The area of the opening 2 corresponding to each sliding door 3 is referred to as an opening portion 2 x. The four opening portions 2x are continuous. In the present embodiment, the sliding door 3 is movable from the left end to the right end of the frame 1.

When all sliding doors 3 are in the closed position, they are arranged on the same vertical surface and flush with each other. The sliding door 3 is guided to open and close by means of the sliding door guide.

First, the lower structure 5 (primary guide mechanism) of the sliding door guide will be described. The lower structure 5 includes a rotatable rail 20 provided on a lower edge portion of each opening portion 2x, i.e., on the lower frame portion 1b, and a pair of right and left rollers 40 (runners) provided on a lower edge portion of each sliding door 3.

The four rotatable rails 20 extend in the right and left direction in an elongated shape and are arranged in a line. As shown in fig. 2 to 4, each rotatable rail 20 is supported by the rail support mechanism 10 to be rotatable about the first rotation axis L1.

The rail supporting mechanism 10 includes a pair of left and right brackets 11 provided for each opening portion 2x, generally separated by the width of the opening portion 2x, and a support block 12 mounted on the brackets 11. The lug 11 functions as a rail supporting portion in cooperation with the supporting block 12.

As shown in fig. 10, the lug 11 is bent from a metal plate, and includes a horizontal coupling portion 11a coupled to the lower surface of the lower frame portion 1b, a vertical portion 11b vertically extending from the horizontal coupling portion 11a, and a protruding portion 11c horizontally protruding forward (the front side in fig. 1, the right side in fig. 2 to 4) from the vertical portion 11 b. The lugs 11 for adjoining the opening portions 2x are placed back to back close to each other.

As shown in fig. 10 and 11, a support block 12 having an elongated shape is supported at the protruding portion 11c of the lug 11. The support block 12 includes a body 12a, a bearing portion 12b having a cylindrical shape and extending from a side surface of one end portion of the body 12a, and a rail portion 12c formed on a top surface of the one end portion of the body 12 a. As shown in fig. 11, a slit 12d is formed in the body 12a and the protrusion 11c of the lug 11 is inserted into the slit 12 d. The slit 12d communicates with the inner space of the bearing portion 12b through the hole 12e and opens to the side surface of the body 12a on the opposite side of the bearing portion 12b through the hole 12 f.

As shown in fig. 10, support holes 11x are formed in the upper and rear ends of the vertical portion 11b of the lug 11. As shown in fig. 2 to 4, one end of an arm 13 (stopper member) is rotatably connected to the lug 11 by a pin 14 inserted in the support hole 11 x. The arm 13 is formed in an elongated shape and includes a slit 13a extending in a longitudinal direction thereof. The slit 13a extends to the other end of the arm 13.

As shown in fig. 10, the rotatable rail 20 is made of an extruded material such as an extruded aluminum (aluminum) product having a flat cross-sectional shape. The rotatable rail is formed in an elongated shape extending horizontally in the right and left direction and has a length slightly shorter than the width of the sliding door 3. The rotatable rail 20 is formed with a receiving hole 21 having a circular cross-sectional shape and extending in a longitudinal direction and a pawl groove 22 communicating with an inner periphery of the receiving hole 21 in a width direction in one end portion thereof.

As shown in fig. 11, the bearing portions 12b of the support block 12 are fitted into the receiving holes 21 at the opposite ends of the rotatable rail 20, whereby the rotatable rail 20 is rotatably supported by the support block 12, and thus by the lower frame 1 b. As shown in fig. 2, the rotation axis L1 of the rotatable rail 20 is located in front of the frame 1.

As shown in fig. 10, a hole 23 is formed at the other end portion of the rotatable rail 20 opposite to the rotation axis L1. As shown in fig. 2 to 4, the other end portion of the rotatable rail 20 is connected to the arm 13 by a pin 16 passing through the hole 23 and the slit 13a of the arm 13 so that the rotatable rail 20 can rotate relative to the arm 13 and can slide in the longitudinal direction of the arm 13.

The pin 16 is intercepted at the distal end of the slit 13a of the arm 13, whereby the rotatable rail 20 is intercepted in the horizontal lying position (first rotational position) and the vertical standing position (second rotational position) as shown in fig. 2. Sliding of the pin 16 within the slot 13a causes the rotatable rail 20 to rotate between a horizontal lying position and a vertical upright position.

As shown in fig. 2 to 4 and 11, the rotatable rail 20 is always biased toward the vertical standing position by a pair of right and left torsion springs 18 (biasing members). The torsion spring 18 is received in a receiving hole 21 of the rotatable rail 20. One end of the torsion spring 18 is inserted into and intercepted by a pawl hole 12x formed in an end surface of the bearing portion 12b of the support block 12. The other end of the torsion spring is intercepted by the detent groove 22 of the rotatable rail 20.

As shown in fig. 11, the support pin 19 is also received in the opposite end of the receiving hole 21 of the rotatable rail 20. The support pin 19 passes through the bearing portion 12b of the support block 12 and the torsion spring 18. One end of the support pin 19 is fixed by being pressed into a fixing hole 11y formed in a distal end portion of the projection 11c of the lug 11, thereby fixing the support block 12 to the lug 11.

The torsion spring 18 is disposed between a flange 19a formed at the other end of the support pin 19 and an end surface of the bearing portion 12b and is supported securely there.

As shown in fig. 10, the rotatable rail 20 further includes a receiving groove 25 for receiving the roller 40. The receiving groove 25 extends in the longitudinal direction of the rotatable rail 20 and is open at opposite ends of the rotatable rail 20. When the rotatable rail 20 is in the horizontal lying position (the front side in the vertical standing position), the receiving groove 25 is also opened at the upper side. As will be described later, the bottom surfaces (the opposite side portions in the width direction of the bottom surfaces in the present embodiment) of the receiving grooves 25 are provided as supporting surfaces 25a for supporting the rollers 40, and the side surfaces of the receiving grooves 25 near the rotation axis L1 are provided as slideways 25 b.

An auxiliary rail 26 is formed on one end portion of the rotatable rail 20 near the rotation axis L1 at a position 90 degrees apart from the slide 25 b. When the rotatable rail 20 is in the horizontal lying position as shown in fig. 2, the auxiliary track 26 faces upward and is continuous with the track portion 12c of the support block 12. The auxiliary track 26 faces forward when the rotatable rail 20 is in the vertical upright position as shown in fig. 3.

As shown in fig. 2 to 4, the roller 40 has a flat disk shape, which is rotatably supported by the sliding door 3 around the second rotation axis L2 through the roller support mechanism 30 (runner support mechanism). The second rotation axis L2 runs parallel to the first rotation axis L1.

The roller support mechanism 30 includes a support frame 31 and two pairs of brackets 32, 33. The support frame 31 is formed of an extruded material extending in right and left directions, and has a length equal to the width of the sliding door 3. The support frame 31 includes a fixing portion 31a fixed to a lower edge portion of the sliding door 3, a vertical portion 31b vertically extending from a rear edge of the fixing portion 31a, and a handle portion 31c downwardly extending from a front edge of the fixing portion 31 a. The grip portion 31c has a cross-sectional shape suitable for a user to put his or her finger therein.

As described later, a receiving recess portion 31d for receiving an upper portion of the roller 40 is formed between the grip portion 31c and the vertical portion 31 b. Since the support frame 31 is formed of an extruded material, the grip portion 31c and the receiving recess portion 31d extend in the longitudinal direction (right and left directions) of the support frame 31.

As shown in fig. 2 and 9, the vertical portion 31b of the support frame 31 extends further downward than the handle portion 31c, and a pair of left and right side brackets 32 are fixed to lower edge portions of the vertical portion 31 b. More specifically, a groove extending in the longitudinal direction is formed in the vertical portion 31b, and the bracket 32 is fastened to the vertical portion 31b by means of a nut 35 and a bolt 36 accommodated in the groove.

As shown in fig. 9, the brackets 32, 33 have support portions 32a, 33a at opposite ends thereof. The pin 37 passes through the support portions 32a, 33a, thereby connecting the bracket 33 to the bracket 32 so that the bracket 33 can rotate about the rotation axis L2.

The roller 40 is rotatably supported at a central portion of the bracket 33 via the shaft member 38. The rotational axis of the roller 40 is orthogonal to the rotational axis L2 of the bracket 33.

As shown in fig. 5, the positioning mechanism 50 is provided between the pair of left and right rollers 40 at a central portion of the lower edge portion of each sliding door 3. As shown in fig. 7 and 8, a positioning mechanism 50 is provided for positioning the sliding door 3 with respect to the rotatable rail 20, and includes a fitting plate 51 fixed to the rotatable rail 20 and a fitting roller 52 fitted into the fitting plate 51.

The fitting plate 51 is made of a magnetic material such as an iron plate, which is fitted into the hole 29 formed in the central portion of the rotatable rail 20 and fastened to the rotatable rail 20. The fitting plate 51 includes an arc-shaped fitting recess portion 51a in a central portion thereof.

The engaging roller 52 is supported by the support frame 31 through two brackets 53, 54. More specifically, the bracket 53 having a shape similar to that of the bracket 32 of the roller support mechanism 30 described above is fixed to the support frame 31 by a pair of nuts 35 and bolts 36. The bracket 54 is rotatably supported by the bracket 53 through pins 55 at opposite ends of the bracket 54. The axis of rotation of the bracket 54 is collinear with the axis of rotation L2.

The engaging roller 52 is composed of a disc-shaped magnet 52a and a pair of disc-shaped support plates 52b arranged to sandwich the magnet 52 a. The diameter of the support plate 52b is slightly larger than that of the magnet 52 a.

The engaging roller 52 is located between a pair of support plate portions 54a of the bracket 54. The pin 56 passes through a central portion of the mating roller 52. Opposite end portions of the pin 56 are inserted into elongated holes 54b formed in the pair of support plate portions 54a, whereby the engaging roller 54 is supported by the bracket 54, so that the engaging roller 52 is rotatable relative to the bracket 54 and is extendable from and retractable into the bracket 54. The pin 56 is positioned orthogonal to the pin 55.

The upper structure 6 (secondary guide mechanism) of the guide device will be described below. As shown in fig. 2, the upper structure 6 includes a rail assembly 60 provided on the upper frame portion 1a and a slider 70 provided in an upper edge portion of the sliding door 3 through a fulcrum 81.

As shown in fig. 14, the rail assembly 60 is composed of four kinds of parts, that is, a first rail 61, a second rail 62, and joint metal portions 63, 64.

As shown in fig. 1 and 12, the first rail 61 and the second rail 62 extend along the upper frame portion 1 a. The length of the first rail 61 is generally equal to the sum of the widths of the four sliding doors 3 (the length of the upper frame portion 1 a). The second guide rail 62 is shorter than the width of the sliding door 3 and is provided for each opening portion 2 x.

As shown in fig. 2 and 14, the first guide rail 61 is made of an extruded material having a conventional triangular cross-sectional shape, and the second guide rail 62 is made of an extruded material having a conventional trapezoidal cross-sectional shape. The first rail 61 and the second rail 62 are arranged to cross the inclined gap 65 toward each other and together form a rectangular cross section. Gap 65 is angled upward as it extends forward. The areas of the gaps 65 corresponding to the opposite ends of the second guide rail 62 in the longitudinal direction of the gaps 65 serve as first guide passages of the slider 70, which will be described later.

As shown in fig. 2 and 14(a), the first rail 61 includes a lightening hole 61a formed in a corner portion of the first rail, two screw holes 61b communicating with the lightening hole 61a, an inclined surface 61c inclined in the vicinity of the lightening hole 61a, a pair of protrusions 61d formed along opposite edges in the width direction of the inclined surface 61c, and a fitting groove 61e defined between the protrusions 61d and the inclined surface 61 c. The first rail 61 further includes a vertical surface 61f on the rear side of the first rail and a guide groove 61g (second guide passage) in the upper end portion on the front side of the first rail 61.

As shown in fig. 2 and 14(D), the rear surface of the second rail 62 is formed as a vertical surface 62a, and the upper surface of the second rail 62 is formed as an inclined surface 62 b. A lower portion of the front end of the second rail 62 is formed with a pair of fitting grooves 62 c. An inclined gap 65 is formed between the inclined surface 61c of the first rail 61 and the vertical surface 62a of the second rail 62. A gap 66 communicating with the inclined gap 65 is formed between the vertical surface 61f of the first rail 61 and the vertical surface 62a of the second rail 62. The opposite end of the gap 66 is provided as a receiving recess portion of the slider 70, which will be described later.

As shown in fig. 12, the opposite ends of the first rail 61 are fixed to the opposite ends of the upper frame portion 1a by joint metal portions 63. As shown most clearly in fig. 14(B) and 15(a), the joining metal portion 63 is constituted by a bent metal plate. The joint metal portion 63 includes a fixing plate portion 63a extending horizontally and fixed to the top surface of the upper frame portion 1a, a vertical coupling plate portion 63b bent 90 degrees with respect to the fixing plate portion 63a, a first fitting plate portion 63c formed by cutting a portion of the coupling plate portion 63b and bending the portion 90 degrees, and a second fitting plate portion 63d extending from an edge of the fixing plate portion 63a to the coupling plate portion 63b along the opposite side. The first fitting plate portion 63c is inclined. The second fitting plate portion 63d extends horizontally and is higher than the fixing plate portion 63a above the top surface of the upper frame portion 1 a.

Each of the opposite end portions of the first rail 61 is fixed to the upper frame portion 1a via the joint metal portion 63 by fitting the first fitting plate portion 63c into a space between the pair of projections 61d of the first rail 61 and by screwing a bolt into an end portion of the screw hole 61b through a through hole 63x formed in the coupling plate portion 63 b.

As shown in fig. 12, the first rail 61 is supported by the upper frame 1a via another joint metal portion 64 in the middle of the first rail 61. As shown in fig. 14(C) and 15(B), the joint metal part 64 includes, like the joint metal part 63, a fixing plate part 64a to be fixed to the upper frame part 1a, a coupling plate part 64B, a first fitting plate part 64C, and a second fitting plate part 64 d. However, the coupling plate portion 64b of the joining metal portion 64 is smaller than the coupling plate portion 63b of the joining metal portion 63 and does not extend higher than the fitting plate portion 64c, so the coupling plate portion 64b does not interfere with the first rail 61. The first fitting plate portion 64c is continuous with the coupling plate portion 64b through the insertion plate portion 64e located slightly lower than the first fitting plate 64 c.

As shown in fig. 2 and 12, the intermediate portion of the first rail 61 is supported by fitting the first fitting plate portion 64c of the joint metal portion 64 into the fitting groove 61e of the first rail 61. In this fitted condition, the insertion plate portion 64e of the joint metal portion 64 is inserted between the protrusions 61d of the first rail 61.

The supporting mechanism of the second rail 62 will now be described with reference to fig. 2 and 12. The second rails 62 located at the right and left side ends of the upper frame portion 1a are supported by different types of joint metal portions 63, 64 that sandwich the second rails 62. The second fitting plate portions 63d, 64d of the engaging metal portions 63, 64 are fitted in opposite end portions of the fitting groove 62c of the second rail 62.

The middle portion of the second rail 62 is supported by a type of joint metal portions 64, 64 that sandwich the second rail 62. The second fitting plate portions 64d, 64d of the engaging metal portions 64, 64 are fitted into the opposite ends of the fitting groove 62c of the second rail 62.

The paired pair of engaging metal portions 63, 64 or engaging metal portions 64, 64 for each opening portion 2x, in other words, for each sliding door 3 are separated by generally the same distance as the width of the sliding door 3. The joining metal portions 64, 64 for abutting the opening portion 2x are located in back-to-back positions with the coupling plate portions 64b, 64b connected to each other.

As described above, since the length of the second rail 62 is shorter than the width of the opening portion 2x and the width of the sliding door 3, as shown in fig. 12, the receiving space 67 is formed between the opposite ends of the second rail 62 and the coupling plate portions 63b, 64b of the engaging metal portions 63, 64.

The steps of mounting the rail assembly 60 will be described below. First, all the first fitting plate portions 64c (six in the present embodiment) of the joint metal portion 64 are inserted into the fitting grooves 61e of the first rail 61 from one end or opposite ends of the fitting grooves 61 e. The joint metal portions 64 are located at the middle of the first rail 61 in a spaced relationship from each other. The first fitting plate portion 63c of one of the engaging metallic portions 63 is fitted in a space between the pair of projections 61d of the first rail 61, and the engaging metallic portion 63 is fixed to one end of the first rail 61 by a screw.

Next, all the second rails 62 are joined to the first rail 61 by inserting the second fitting plate portions 63d, 64d of the joint metal portions 63, 64 into the opposite ends of the fitting groove 62c of the second rail 62. At this time, the second rail 62 located at the other end side of the first rail 61 is supported at only one end by the joint metal part 64.

Finally, the other joining metal portion 63 is fixed to the other end side of the first rail 61. At this time, the second fitting plate portion 63d of the engaging metal portion 63 is inserted into the other end side of the fitting groove 62c of the second rail 62.

The rail assembly 60 is assembled as described. This assembly can be done in a different order. For example, the joint metal portion 63 may be fixed to one end of the first rail 61 first, the second rail 62 and the pair of joint metal portions 64 may be alternatively joined to the first rail 61 second, and the joint metal portion 63 may be fixed to the other end of the first rail 61 last.

The rail assembly 60 assembled in the manner described is positioned on the upper frame portion 1a, and the fixing plate portions 63a, 64a of the joint metal portions 63, 64 are fixed to the top surface of the upper frame portion 1a by screws. The rail assembly 60 has a long first rail 61, and other constituent components are coupled to the first rail 61. Such a frame facilitates positioning of all components more easily, since each component only has to be positioned relative to the first guide rail 61. This configuration makes installation easier since the rail assembly 60 is assembled in advance.

As shown in fig. 3 and 13, the support brackets 81 are fixed on right and left side ends of an upper edge portion of the sliding door 3. The support bracket 81 is formed by bending a metal plate, and includes a fixed plate portion 81a to be fixed to the rear surface of the sliding door 3, a first horizontal portion 81b horizontally extending rearward from a lower edge of the fixed plate portion 81a, a vertical portion 81c vertically extending downward from a rear edge of the first horizontal portion 81b, a second horizontal portion 81d horizontally extending rearward from a lower edge of the vertical portion 81c, and an upright portion 81e vertically upward from a rear edge of the second horizontal portion 81 d. Right and left end portions of the upstanding portion 81e protrude.

As will be described later, the horizontal portions 81b, 81d and the vertical portion 81c of the support bracket 81 have the same width and are adapted to be received in and withdrawn from the receiving space 67 of the rail assembly 60.

The upright portions 81e of the pair of half slider bodies 70 coupled to the support bracket 81 are coupled. The slider 70 extends horizontally in parallel with the first guide rail 61. The opposite ends 70a of the slider 70 protrude from the support 81 in the right and left directions. The slider 70 is slightly longer than the receiving space 67 in the right and left directions.

The operation of the guide device having the frame will now be described. First, as shown in fig. 1 and 2, when all the four opening portions 2x are closed by the sliding door 3, the upper and lower edge portions of the sliding door 3 abut or are in close proximity to the front surfaces of the upper and lower frame portions 1a, 1b of the frame 1, respectively, with a small space therebetween. The front surfaces of all the sliding doors 3 arranged in the right and left directions are located on the same vertical plane and flush with each other.

When the sliding door 3 is in the closed position (stopper position) as described above, in the lower structure 5, the rotatable rail 20 is in the horizontal lying position (first rotational position), and the roller 40 is also horizontally fallen and received in the receiving groove 25 of the rotatable rail 20. The weight of the sliding door 3 is borne by the rotatable rail 20 through the roller support mechanism 30 and the rollers 40. In the horizontal lying position, the weight of the sliding door 3 acts at the point where the support surface 25a of the receiving groove 25 and the roller 40 abut. These abutment points are located behind the rotational axis L1 of the rotatable rail 20, whereby a counterclockwise moment as shown in fig. 2 is applied to the rotatable rail 20. Since the counterclockwise moment is greater than the clockwise moment by the elastic force of the torsion spring 18, the rotatable rail 20 tries to rotate in the counterclockwise direction. However, because the rotatable rail 20 is intercepted by the arm 13, the rotatable rail is maintained in the horizontal lying position. The rotatable rail 20 is also held in the horizontal lying position by the protrusion in the rear end of the auxiliary rail 26 abutting against the vertical portion 31b of the support frame 31.

When all the sliding doors 3 are in the closed position, the auxiliary tracks 26 of all the rotatable rails 20 are arranged in a straight line to form a continuous track.

When the sliding door 3 is in the closed position, in the upper structure 6, the fulcrum 81 is accommodated in the receiving space 67 of the rail assembly 60, and either the right end portion or the left end portion of the slider 70 is accommodated in the end portion of the gap 66 (receiving recess portion). This arrangement prevents the upper end portion of the sliding door 3 from moving in the front-rear direction.

The opening movement of a selected one of the sliding doors 3 will now be described. The sliding door 3 is pulled to the opening preparation position located at the front by grasping the handle portion 31c of the support frame 31. As shown in fig. 3, when the sliding door 3 is pulled, the roller 40 is engaged with the receiving groove 25 of the rotatable rail 20, whereby the rotatable rail 20 is rotated forward by 90 degrees about the rotation axis L1 to be in the vertical standing position (second rotation position). At this time, the roller 40 is also rotated 90 degrees about the rotation axis L2 to be in the vertically upright position. This causes the roller 40 to ride on the slide 25b of the receiving groove 25 of the rotatable rail 20.

In order to pull the sliding door 3 to the opening preparation position as described above, a force larger than the moment caused by the weight of the sliding door 3 is initially required. However, when the sliding door 3 is pulled close to the opening preparation position, the moment caused by the weight of the sliding door 3 is reduced. At this time, the moment in the clockwise direction caused by the torsion spring 18 is larger than the moment caused by the weight of the sliding door 3, so that the sliding door 3 is automatically moved to the opening preparation position.

When the rotatable rail 20 is in the upright position, the slide way 25b is located just above the rotation axis L1, and therefore, there is no moment generated by the weight of the sliding door 3. Although a clockwise moment caused by the elastic force of the torsion spring 18 is applied to the rotatable rail 20, the rotatable rail 20 is held in the upright position since the rotatable rail 20 is caught or stopped by the arm 13.

The rotational axis L2 of the roller 40 moves upward from a position generally just beside the rotational axis L1 of the rotatable rail 20. Therefore, the sliding door 3 is displaced upward when it is moved to the opening preparation position.

As described above, when the sliding door 3 moves from the closed position to the opening preparation position, it is displaced upward as it moves forward. This causes either one of the left or right end portions of the slider 70 to come out of the gap 66, to be moved obliquely along the end portion (first guide passage) of the inclined gap 65, and finally to enter the guide groove 61g (second guide passage).

The sliding door 3 is then moved from the opening preparation position or to the left or right to the opening position (non-stop position). At this time, as shown in fig. 4, the rollers 40 of the sliding door 3 run on the runners 25b of the respective rotatable rail 20 in the upright position and are transferred to the auxiliary rail 26 of the other rotatable rail 20 (adjacent rail or adjacent member) adjacent to the respective rotatable rail 20.

When the sliding door 3 is moved to the open position as described above, the slider 70 of the sliding door 3 moves in the guide groove 61g of the first guide rail 61.

As shown in fig. 4, when the sliding door 3 is in the open position, the roller 40 moves on the auxiliary rail 26. The upper portion of the roller 40 is received in the receiving recess portion 31d formed in the support frame 31 of the sliding door 3 in the closed position, thus ensuring that the roller 40 does not fall down.

As shown in fig. 4, the sliding door 3 in the open position overlaps with one of the other sliding doors 3 in the closed position. The sliding door 3 is movable from the left end to the right end of the frame 1.

The rotatable rail 20 left by the sliding door 3 that has moved to the open position is maintained in the upright position by the holding mechanism consisting of the torsion spring 18 and the arm 13. This ensures that when the sliding door 3 is returned from the open position to the opening preparation position, the door is smoothly transferred from the auxiliary rail 26 of the adjacent rotatable rail 20 in the lying position to the slide 25b of the corresponding rotatable rail 20 in the standing position.

Even when the rotatable rail 20 is slightly rotated toward the horizontal lying position by the external force applied to the sliding door 3, the rotatable rail 20 can be returned to the upright position by the elastic force of the torsion spring 18.

When the sliding door 3 is returned to the opening preparation position, the sliding door 3 is positioned by the positioning mechanism 50. More specifically, the engaging roller 52 mounted on the bracket 54 of the sliding door 3 is moved so as to be fitted into the engaging recessed portion 51a of the engaging plate 51 of the rotatable rail 20 by a magnetic force acting between the magnet 52a of the engaging roller 52 and the engaging plate 51. As a result, the sliding door 3 is positioned at the same position as the rotatable rail 20 is positioned in the right and left directions.

To return the sliding door 3 from the opening preparation position to the closed position, the sliding door 3 should be pushed toward the frame 1 against the torsion spring 18. At this time, the counterclockwise moment caused by the weight of the sliding door 3 is greater than the clockwise moment caused by the torsion spring 18, so that the sliding door 3 is automatically returned to the closed position and the rotatable rail 20 and the roller 40 are returned to the horizontal lying position as shown in fig. 2.

A second embodiment of the present invention will now be described with reference to fig. 16 to 18. In this example, the same reference numerals are given to the components corresponding to those of the first embodiment, and detailed descriptions of these components are omitted.

In the second embodiment, the existing damper 90, which replaces the support pin 19 in the first embodiment, is accommodated in the receiving hole 21 of the rotatable rail 20. The damper 90 includes a shaft 91 and a tubular member 92, the tubular member 92 having a bottom in one end thereof.

The shaft 91 integrally includes a pin portion 91a and an operation portion 91b having a larger diameter than the pin portion 91a and coaxially arranged with the pin portion 91 a. The pin portion 91a passes through the torsion spring 18 and the support block 12, as the support pin 19 in the first embodiment. The reduced diameter distal end portion of the pin portion 91a passes through the fixing hole 11y of the lug 11 and is pressed, whereby the shaft 91 is non-rotatably fixed to the lug 11.

The pin portion 91a of the shaft 91 passes through the torsion spring 18. The torsion spring 18 is located between the bearing portion 12b and the operating portion 91 b.

A detent groove 91c and a receiving groove 91d, both having an annular shape, are formed on the outer periphery of one end portion of the running portion 91b of the shaft 91 near the pin portion 91 a.

In the tubular member 92, a plurality of pawls 92a are formed at an open end of the tubular member. The pawls 92a are arranged at intervals in the circumferential direction. The pawl 92a is caught by the catch groove 91c of the shaft 91, thereby coupling the tubular member 92 with the shaft 91.

A slight gap is formed between the outer periphery of the running portion 91b of the shaft 91 and the inner periphery of the tubular member 92. Viscous fluid is injected into the gap. A seal ring 93 is accommodated in the receiving groove 91d of the shaft 91. The seal ring 93 prevents leakage of the viscous fluid.

A projection 92b extending in the axial direction is formed on the outer periphery of the tubular member 92. As shown in fig. 18, a latch groove 22 extending in the longitudinal direction of the rotatable rail 20 is formed in the rotatable rail 20. The projection 92b of the tubular member 92 is received in the catch groove 22. As a result, the tubular member 92 is prevented from rotating relative to the rotatable rail 20 and can move in unison with the rotatable rail 20.

When the sliding door 3 moves from the opening preparation position to the closed position, the rotatable rail 20 rotates from the upright position to the lying position. This causes the tubular member 92 of the damper 90 to rotate relative to the shaft 91. In this relative rotation, a damping action is provided by the resistance of the viscous fluid between the running portion 91b and the tubular member 92. Therefore, an increase in the rotational speed of the rotatable rail 20 caused by the weight of the sliding door 3 can be restricted, so that an impact when the rotatable rail 20 reaches the lying position can be avoided.

While the invention has been illustrated and described with reference to specific embodiments thereof, it will be apparent that various changes and additions can be made therein without departing from the spirit and scope thereof. For example, a primary guide mechanism and a secondary guide mechanism having a structure similar to that used in the above-described embodiment may be installed up and down in vertically exchanged positions.

The application of the sliding door and the guide is not limited to such a partition. They can also be applied to opening and closing an opening portion of a window of a house or an opening portion of furniture.

The torsion spring may be located at only one end of the rotatable rail.

The rail support portion may be formed as an integral part of the main body.

The guide means can be used for a single sliding door 3. In this case, the fixed rail (adjacent rail or adjacent member) may be disposed adjacent to the rotatable rail. The fixed rail may have an auxiliary track in continuous line with the run of the rotatable rail in the upright position.

Industrial applicability

The invention is applicable to guiding devices for plate-like objects, such as partitions, furniture, window shutters and the like.

Claims (8)

1. A guide device for guiding a plate-like object (3) moving between a stop position and a ready position before or after the stop position and between the ready position and a non-stop position to the left or right of the ready position with respect to a main body (1), comprising:

a rotatable rail (20) formed in an elongated shape extending horizontally in right and left directions and supported by the main body such that the rotatable rail is rotatable between a first rotational position and a second rotational position around a first rotational axis (L1) extending in right and left directions, the rotatable rail including a receiving groove (25) extending in a longitudinal direction of the rotatable rail, a side portion of the receiving groove being provided as a slideway (25 b);

a runner (40) supported by said plate-like object so that said runner can revolve around a second axis of rotation (L2) parallel to said first axis of rotation (L1);

an adjacent member (20) disposed adjacent to the rotatable rail and having an auxiliary track (26) extending in right and left directions, the auxiliary track being continuous with the slideway of the rotatable rail when the rotatable rail is in the second rotational position;

wherein, when the plate-like object (3) is in a stop position, the rotatable guide rail (20) is in the first rotational position, the runner (40) being received in the receiving groove (25) of the rotatable guide rail;

wherein when the plate-like object is in the ready position, the rotatable rail is in the second rotational position, the runner is received in the receiving groove of the rotatable rail and rides on the slide (25 b);

wherein the runner is transferred from the chute onto the auxiliary track (26) when the plate-like object is moved from the ready position to the non-stop position;

wherein the guide device further comprises:

a biasing member (18) biasing the rotatable rail (20) toward the second rotational position;

it is characterized in that the preparation method is characterized in that,

the guide arrangement further comprises a stop member (13) for holding the rotatable rail in the second rotational position against the biasing member;

the rotatable rail (20) includes receiving holes (21) opened at left and right ends of the rotatable rail;

a pair of rail support portions (11) mounted on the main body (1) in such a manner as to sandwich the rotatable rail (20) and rotatably supporting the rotatable rail (20), each of the rail support portions including a bearing portion (12b) fitted into the receiving hole of the rotatable rail; and is

The biasing member (18) is received within the receiving bore at a location deeper than the bearing portion.

2. A guide device for guiding each of a plurality of plate-like objects (3) moving between a stop position and a ready position before or after the stop position and between the ready position and a non-stop position to the left or right of the ready position with respect to a main body (1), the plurality of plate-like objects being flush with each other and aligned in right and left directions when all of the plurality of plate-like objects are in the stop position, the guide device comprising:

a plurality of rotatable rails (20) formed in an elongated shape extending horizontally in right and left directions and arranged in a line in the right and left directions and supported by the main body such that each of the rotatable rails is rotatable between a first rotational position and a second rotational position around a first rotational axis (L1) extending in the right and left directions;

a runner (40) supported by each of the plurality of plate-like objects so that the runner can revolve around a second rotation axis (L2) parallel to the first rotation axis (L1);

wherein each of the rotatable rails includes a receiving groove (25) extending in a longitudinal direction of the rotatable rail, a side portion of the receiving groove being provided as a slide (25 b);

wherein each of the rotatable rails further comprises an auxiliary track (26) spaced from the runway at the same angle as the angle around the first axis of rotation between the first and second rotational positions;

wherein when each of said plate-like objects (3) is in said stop position, a respective one of said rotatable rails (20) is in said first rotational position, said runner (40) being received in said receiving slot (25) of said respective rotatable rail;

wherein when each of the plate-like objects is in the ready position, a respective one of the rotatable rails is in the second rotational position, the runner being received in the receiving groove and riding on the slideway (25b) of the respective rotatable rail;

wherein when each of the plate-like objects moves from the ready position to the non-stop position, the runner is transferred from the slideway of the respective rotatable rail onto the auxiliary track (26) of the other rotatable rail adjacent to the respective rotatable rail;

wherein the guide device further comprises:

a biasing member (18) biasing each of the rotatable rails (20) toward the second rotational position;

it is characterized in that the preparation method is characterized in that,

said guide means further comprising stop means (13) for holding each said rotatable rail in said second rotational position against said biasing means;

the rotatable rail (20) includes receiving holes (21) opened at left and right ends of the rotatable rail;

a pair of rail support portions (11) mounted on the main body (1) in such a manner as to sandwich the rotatable rail (20) and rotatably supporting the rotatable rail (20), each of the rail support portions including a bearing portion (12b) fitted into the receiving hole of the rotatable rail; and is

The biasing member (18) is received within the receiving bore at a location deeper than the bearing portion.

3. The guiding device for plate-like objects according to claim 1 or 2, wherein,

the biasing member includes a torsion spring (18) having one end thereof caught in an end surface of the bearing portion (12b) and the other end thereof caught in an inner periphery of the receiving hole (21).

4. Guide device for plate-like objects according to claim 3,

a support pin (19) having a flange (19a) at a distal end is fastened to the rail support portion (11), the support pin protruding from an end surface of the bearing portion (12b) along the first rotation axis (L1), the support pin passing through the torsion spring (18) inside the receiving hole (21) of the rotatable rail (20), the torsion spring being disposed between the bearing portion and the flange of the support pin; and

a detent groove (22) extending in a longitudinal direction of the rotatable rail (20) is formed in an inner periphery of the receiving hole (21) of the rotatable rail (20), and the other end of the torsion spring (18) is inserted into the detent groove.

5. The guide apparatus for a plate-like object according to claim 3, further comprising:

an elongated bumper (90) received within the receiving bore (21) of the rotatable rail (20), the bumper comprising a shaft (91), a tubular member (92) disposed on an outer periphery of the shaft, and a viscous resistive material injected into a gap between the outer periphery of the shaft and an inner periphery of the tubular member;

wherein the shaft (91) is fixed to the rail supporting portion (11) and protrudes from the end surface of the bearing portion (12b) along the first rotation axis (L1), the shaft (91) passing through the torsion spring (18); and

wherein the tubular member (92) is prevented from rotating relative to an inner periphery of the receiving bore of the rotatable rail.

6. The guiding device for plate-like objects according to claim 1 or 2, wherein,

the ramp (25b) is generally directly above the first axis of rotation (L1) when the rotatable rail (20) is in the second rotational position.

7. The guiding device for plate-like objects according to claim 1 or 2, wherein,

an opening portion (2x) corresponding to the plate-like object (3) is formed in the main body (1), and closes the opening portion when the plate-like object is in the rest position and opens the opening portion when the plate-like object is in the non-rest position.

8. Guide device for plate-like objects according to claim 7,

a primary guide mechanism (5) is provided in one of upper and lower edge portions of the opening portion (2x), and a secondary guide mechanism (6) is provided in the other of the upper and lower edge portions of the opening portion (2 x);

the primary guide mechanism includes the rotatable rail (20) provided in one of the upper and lower edge portions of the opening portion, the runner (40) being provided in one of the upper and lower edge portions of the plate-like object (3);

the secondary guide mechanism includes a first guide passage (65) provided in the other of the upper and lower edge portions of the opening portion, extending in the front and rear directions, a second guide passage (61g) extending in the right and left directions to intersect the first guide passage, and a slider (70) provided in the other of the upper and lower edge portions of the plate-like object (3); and

the slider is guided by the first guide channel to move in front and rear directions with a vertical displacement when the plate-like object moves between the stop position and the ready position, and is guided by the second guide channel to move in right and left directions when the plate-like object moves between the ready position and the non-stop position.