JP7449021B1 - Wiper device and camera device - Google Patents

Abstract

An object of the present invention is to provide a wiper device and a camera device that can avoid dragging water droplets on the return trip and reduce the load on a wiping unit. SOLUTION: A wiper device includes a wiping part that wipes a target surface, a frame that supports the wiping part, and a lifting mechanism that can separate the wiping part from the target surface, and the lifting mechanism has a foot section installed on the frame, and the foot section is bent so that the wiping section contacts and wipes the target surface on the outward trip, and such that the wiping section separates from the target surface on the return trip. A wiper device, wherein the foot portion extends. [Selection diagram] Figure 2

Description

The present invention relates to a wiper device and a camera device equipped with the wiper device.

There is a wiper device that wipes the surface of an object to clean water droplets (for example, raindrops, etc.), dust, dirt, etc. (hereinafter referred to as "water droplets, etc."). As an example, a camera device, particularly a surveillance camera device, is equipped with a wiper device to wipe the surface of a light-transmitting body of a casing that houses (incorporates) the surveillance camera.

Conventionally, such a wiper device includes, for example, a blade rubber that slides back and forth in the sliding range of a sliding surface, a wiper blade that holds this blade rubber, and a wiper blade that uses its own spring force to move the A wiper arm that urges the blade rubber toward the sliding surface, a connecting means that connects the wiper blade and the wiper arm, and a wiper driving means that drives the wiper arm to reciprocate the blade rubber. A wiper device characterized by having a wiper device" has been proposed (see Patent Document 1).

Japanese Patent Application Publication No. 8-234276

In the above wiper device, the blade rubber that performs wiping slides back and forth on the target surface that is the surface to be wiped when wiping. However, in such reciprocating sliding, the wiping section contacts and slides against the target surface even on the return trip, so there is a problem that water droplets etc. wiped off on the return trip are dragged and left on the target surface on the return trip.

Further, in the above wiper device, since the wiping section is always biased toward the target surface including when it is on standby, there is a problem in that the wiping section is easily deformed due to a load.

The present invention is intended to solve at least one of the above-mentioned problems, and an object of the present invention is to provide a wiper device and a camera device that can avoid dragging water droplets on the return trip and reduce the load on the wiping unit.

One aspect of the present invention that solves the above problems is a wiper device that includes a wiping section that wipes a target surface, a frame that supports the wiping section, and an elevation that allows the wiping section to be separated from the target surface. The elevating mechanism has a foot section installed on the frame, the foot section is bent so that the wiping section contacts and wipes the target surface on the outward trip, and the foot section is bent so that the wiping section contacts and wipes the target surface on the return trip. The foot portion is extended such that the foot portion is spaced from the target surface.

On the outward journey, the foot portion may move together with the wiping portion while contacting a mounting surface to which the wiper device is attached or an installation surface installed on the mounting surface.

The foot may include a main body, a support fixed to the frame, and a joint movably connecting the main body and the support.

The elevating mechanism includes a riding part for extending the foot, and the riding part includes a moving part that moves together with the foot, and a fixed part on which the moving part rides on at the end of the forward path. Good too.

The base end of the main body may be in contact with the frame on the return trip so as not to bend.

One aspect of the present invention that solves the above problems is a camera device in which the wiper device is provided in a casing that houses the camera.

According to the present invention, it is possible to provide a wiper device and a camera device that can avoid dragging water droplets and the like on the return trip and reduce the load on the wiping unit.

Problems, configurations, and effects other than those described above will be made clear by the description of the embodiments below.

FIG. 1 is a diagram for explaining an example of a camera device according to an embodiment of the present invention. FIG. 1 is a diagram for explaining an example of a wiper device according to an embodiment of the present invention. It is a figure for explaining an example of operation of a wiper device of one embodiment of the present invention. FIG. 2 is a diagram for explaining an example of the configuration of a lifting mechanism according to an embodiment of the present invention. FIG. 1 is a diagram for explaining an example of a wiper device according to an embodiment of the present invention. FIG. 3 is a diagram for explaining an example of a moving unit of a lifting mechanism according to an embodiment of the present invention. FIG. 7 is an exploded perspective view of the moving unit of FIG. 6; It is a figure for explaining an example of the main body of the foot part of the elevating mechanism of one embodiment of the present invention. It is a figure for explaining an example of the support of the foot part of the elevating mechanism of one embodiment of the present invention. It is a figure for explaining an example of the rail plate of the elevating mechanism of one embodiment of the present invention. It is a figure for explaining an example of operation of a wiper device of one embodiment of the present invention.

Examples of embodiments of the present invention will be described below with reference to the drawings. Note that common constituent elements in the following embodiments may be denoted by the same reference numerals as those described above, and explanations thereof may be omitted. In addition, when referring to the shape, positional relationship, etc. of constituent elements, etc., unless it is specifically specified or it is clearly considered that it is not the case in principle, etc., we refer to things that are substantially similar to or similar to the shape, etc. shall be included.

FIG. 1 is a diagram for explaining an example of a camera device according to an embodiment of the present invention.

Although the illustrated camera device 100 is a surveillance camera device, the present invention is not limited thereto and may be applied to other camera devices. The present invention may be applied to devices and objects other than camera devices. For example, it is possible to apply the present invention to wipe away the protective surfaces of LIDAR (Light Detection and Ranging), sensors, and the like. The present invention is particularly suitable for devices and objects installed outdoors, but it goes without saying that it may also be applied to devices installed indoors.

The camera device 100 here includes a casing K, and a camera (here, a surveillance camera) not shown is built-in (accommodated) inside the casing K. A wiper device W for cleaning water droplets and the like is provided in the housing K.

The housing K includes, for example, a window (light-transmitting body) M on a front plate N. In the illustrated example, the target surface, ie, the surface to be wiped by the wiper device W, is the surface M1 of the window M. Note that the target plane may vary depending on the device or object used.

Although the mounting position of the wiper device W is not particularly limited, from the viewpoint of compactness, it is preferably mounted near the target surface M1. When the wiper device W is attached to the front plate N, it can be set taking into account its shape and the shape of the window M. In the illustrated example, the wiper device W is attached to one corner of the rectangular front plate N, but it can be set at both corners. It may be attached to an intermediate part between the two. In the wiper device W, the surface N1 of the front plate N is the mounting surface, and the surface M1 of the window (eg, glass) M is the target surface.

Preferably, the target surface M1 is slightly higher than the mounting surface N1. With this configuration, it is possible to suppress water droplets and the like from moving from the mounting surface N1 to the target surface M1.

In addition, when the camera device 100 is in use, the front plate N is often installed vertically (see FIG. 3) or diagonally vertically, but for convenience of explanation of the wiper device W, the camera device 100 is not shown in the figure. , is installed so that the front plate N is the top surface, and is observed from slightly above the front side.

FIG. 2 is a diagram for explaining an example of a wiper device according to an embodiment of the present invention, and is a partially enlarged view of FIG. Note that, in the illustration, parts of the housing K other than the front plate N are omitted.

The wiper device W includes a wiper section U and a lifting mechanism V. The wiper unit U includes a wiping unit 1 that wipes the target surface M1, a frame 2 that supports the wiping unit 1, a connecting unit 3 that connects the frame 2 to a drive unit, and a drive unit (not shown) that supplies power. Be prepared. The elevating mechanism V can separate the wiping unit 1 from the target surface M1.

The configuration of the drive section of the wiper section U is not particularly limited. As an example, in the illustrated example, the wiper section U can be rotated reciprocally by a drive shaft 32 connected to an output shaft of a drive section. The wiper portion U rotates from the standby position to the terminal position on the outward trip, and rotates and returns from the terminal position to the standby position on the return trip. In the illustrated example, the illustrated wiper portion U is in a standby position. In the following description, it is assumed that the standby position is between one side of the front plate N and the target surface M1, and the terminal position is between the other side orthogonal to the one side and the target surface M1. The standby position and the end position can be set as appropriate depending on the device or object in which the wiper device W is used, the configuration of the front plate, the mounting position, and the like. The mounting surface N1 and the target surface M1 may be on a common surface. The standby position and the end position may be set inside the edge of the window M.

As an example, although not shown in the drawings, the wiper portion U is configured such that a driving portion includes a linear motion mechanism, and is capable of linear reciprocating movement. In this case, the wiper portion U moves linearly from the standby position to the terminal position on the outward journey, and linearly moves from the terminal position to the standby position and returns on the return journey. When the front plate N is rectangular, for example, the standby position is installed between one side of the front plate N and the target surface M1, and the terminal position is installed between the opposite side parallel to the one side and the target surface M1. be done.

The elevating mechanism V includes a foot section 4 installed on the frame 2 of the wiper section U. On the outward journey, the leg section 4 bends so that the wiping section 1 comes into contact with the target surface M1 and wipes, and on the return journey, the wiping section 1 bends. The foot portion 4 extends so as to be separated from the target plane M1.

FIG. 3 is a diagram for explaining an example of the operation of the wiper device according to an embodiment of the present invention.

As mentioned above, in conventional wiper devices, the blade rubber comes into contact with the target surface on the return trip and slides, so there is a problem in that water droplets wiped away on the return trip are dragged and left on the target surface on the return trip. .

The wiper device W of this embodiment is equipped with the lifting mechanism V as described above, and in the return trip, the foot portion 4 of the lifting mechanism V extends to separate the wiping unit 1 from the target surface M1. It is possible to avoid dragging water droplets etc. that have been wiped away by sliding on the return trip, and it is possible to avoid re-adhesion of water droplets etc. to the target surface M1.

Furthermore, since the target surface M1 is slightly higher than the mounting surface N1, it is possible to suppress water droplets and the like on the mounting surface N1 from moving to the target surface M1.

The configuration of the wiper device W is not particularly limited as long as the lifting mechanism V can bend and extend as described above. Although the illustration shows an example in which the wiper device W rotates and moves back and forth, the wiper device W may move back and forth in a linear manner as described above.

FIG. 4 is a diagram for explaining an example of the configuration of a lifting mechanism according to an embodiment of the present invention. The illustrated lifting mechanism V may be applied to a wiper device W that rotates and reciprocates, or may be applied to a wiper device W that moves linearly and reciprocates.

Preferably, the elevating mechanism V moves together with the wiping unit 1 on the outward journey while the foot portion 4 is in contact with the mounting surface N1 or an installation surface installed on the mounting surface N1. With this configuration, the elevating mechanism V does not require a separate drive section for driving the foot section 4, and can reduce manufacturing costs and running costs. As an example, in the illustrated example, the foot portion 4 moves while contacting the mounting surface N1.

The foot section 4 includes, for example, a main body 41, a support body 42 (not shown) fixed to the frame 2 (see the example in FIG. 6), and a joint section 43 that movably connects the main body 41 and the support body 42. . In other words, the main body 41 is connected to the frame 2 via the support 42 and the joint 43.

In the standby position, as shown in the figure, the foot portion 4 is in contact with the mounting surface N1 and is in an extended posture upright with respect to a reference line C passing through the axis of the joint portion 43. Although not shown, the wiping part 1 is floating without contacting the mounting surface N1, and even if the foot part 4 moves on the mounting surface N1 in an extended posture, it cannot come into contact with the target surface M1. There is.

On the outward journey, the foot section 4 rotates around the joint section 43 due to the frictional force in contact with the mounting surface N1 while the main body 41 moves together with the frame 2 as shown in the figure, and is bent and tilted with respect to the reference line C. The frame 2 is brought close to the target surface M1. Then, the wiping unit 1 supported by the frame 2 also approaches the target surface M1, comes into contact with it, and starts wiping the target surface M1.

The foot portion 4 assumes an extended position at the terminal position, and moves in the extended position on the return trip. In the illustrated example, the main body 41 of the foot portion 4 is configured to be rotatable in only one direction around the joint portion 43, and on the return trip, the main body 41 contacts the mounting surface N1 but cannot bend, and in the extended posture, the main body 41 contacts the mounting surface N1. move on. When the foot section 4 is in the extended posture, the wiping section 1 also becomes separated from the target surface M1, so that the wiping section 1 returns to the standby position without contacting the target surface M1 on the return trip.

Although not shown, the foot portion 4 may be configured such that the main body 41 does not come into contact with the mounting surface N1 on the return trip.

The configuration for extending the foot portion 4 at the terminal position is not particularly limited. As an example, the elevating mechanism V includes a riding part 5 for extending the foot part 4. The riding part 5 includes, for example, a moving part 51 that moves together with the foot part 4, and a fixed part 52 on which the moving part 51 rides on at the terminal position.

The movable part 51 is not particularly limited in structure as long as it can move together with the foot part 4 and ride on the fixed part 52. As an example, the moving part 51 is attached to the joint part 43 of the foot part 4 as shown in the figure. The moving unit 51 is attached to the frame 2, as an example, although not shown.

For example, the fixing portion 52 is fixed to the mounting surface N1 and configured to protrude from the mounting surface N1 in a convex shape. The fixed portion 52 is configured to protrude from the mounting surface N1 to a height that allows the main body 41 to be lifted from the mounting surface N1. In the illustrated example, the protruding height of the fixed part 52 is larger than the distance between the end of the moving part 51 and the mounting surface N1 when the foot part 4 is in the extended posture.

On the outward journey, when the wiping part 1 finishes wiping the target surface M1 and the foot part 4 in the bent position is about to reach the terminal position, the moving part 51 climbs onto the waiting fixed part 52, as shown in the figure. , the main body 41 is lifted and suspended in the air from the mounting surface N1. Therefore, the foot 4 is no longer subjected to frictional force and returns to the extended posture.

On the return trip, when returning from the terminal position to the standby position, the movable part 51 descends from the fixed part 52, and as shown in the figure, the main body 41 comes into contact with the mounting surface N1 in the extended position, and the main body 41 comes into contact with the mounting surface N1 in the extended position. It will now move on N1.

FIG. 5 is a diagram for explaining an example of a wiper device according to an embodiment of the present invention, and is an enlarged view of FIG. 2. The wiper device W and its constituent parts will be described in detail below, with the side closer to the target surface M1 as the distal end, the opposite side as the proximal end, the side closer to the mounting position as the root side, and the opposite side as the distal end. .

The configuration of the wiper unit U of the wiper device W is not particularly limited. In other words, the lifting mechanism V can be used in various wiper devices. Hereinafter, as an example, an example of the wiper part U that rotates and moves back and forth will be described.

The wiping unit 1 is configured by, for example, an elongated member made of a rubber material. As an example, the frame 2 includes a main body 21, a holding part 22 provided on the distal end side of the main body 21 and holding the wiping part 1, and a connection part provided on the base side of the main body 21 that connects the frame 2 and the connecting part 3. A section 23 is provided.

The main body 21 is a long portion and has a flat plate portion 211 on the base end side. The foot portion 4 of the lifting mechanism V is attached to the main body 21. That is, the foot portion 4 of the elevating mechanism V is located on the root side of the wiping portion 1 and on the distal end side of the connecting portion 23 here.

The holding portion 22 may be formed separately from the main body 21 and attached to the distal end side of the main body 21 as shown in the figure, or may be formed integrally with the main body 21 although not shown.

The connecting portion 23 has a pair of support portions 231 and a connecting shaft 232. The support portion 231 is provided on the base side of the main body 21, and is provided so as to extend from the base end side in the direction of the mounting surface N1.

The support part 231 has a through hole that penetrates in the plate thickness direction, and the connecting shaft 232 is inserted through the through hole of the pair of support parts 231 and the through hole on the tip side of the connecting part 3, which will be described later. A frame 2 is rotatably connected to a connecting part 3. In other words, the connecting shaft 232 is provided parallel to the mounting surface N1, and the frame 2 is configured to be able to swing around the connecting shaft 232 (in the direction of arrow A in the figure).

The connecting portion 3 has a main body 31 and a drive shaft 32 . As an example, the main body 31 has a through hole extending in the depth direction on the distal end side, and is connected to the frame 2 via the connecting shaft 232 using the through hole. For example, the main body 31 has a slit portion extending from the distal end to the distal end, and the slit portion is fitted into the drive shaft 32, and both sides of the slit portion are tightened using fastening members (for example, bolts and nuts). It is connected to the drive shaft 32 so as to move together.

The drive shaft 32 is provided perpendicularly to the mounting surface N1 here. The drive shaft 32 has its distal end connected to the motor shaft of the drive section on the back side of the front plate N. The proximal end of the drive shaft 32 passes through a receiving portion provided through the front plate N, protrudes from the mounting surface N1, and is connected to the main body 31 of the connecting portion 3 as described above. Preferably, as shown in the figure, a through hole portion passing through in the radial direction is provided at the proximal end portion, and a snap pin 33 is attached to the through hole portion.

By configuring the wiper device W in this way, the wiping section 1, the frame 2, and the connecting section 3 are rotated together by the drive shaft 32.

The wiper device W rotates back and forth here. As an example, although not shown, the drive section includes a photoelectric sensor, and when it is detected that the wiper device W has reached the terminal position due to the forward rotational drive of the motor, the motor is rotated in the reverse direction. ing.

FIG. 6 is a diagram for explaining an example of a moving unit of a lifting mechanism according to an embodiment of the present invention, in which (a) a perspective view from the front end side, (b) a side view from the end side, and (c) a front view. It is a perspective view from the distal end side. In FIG. 6, X indicates the distal direction, Y indicates the proximal direction, and Z indicates the depth direction (the same applies in each figure below). FIG. 7 is an exploded perspective view of the moving unit of FIG. 6. FIG. 8 is a diagram for explaining an example of the main body of the foot. FIG. 9 is a diagram for explaining an example of a foot support.

Hereinafter, with reference to FIGS. 6 to 9, the component in the lifting mechanism V that moves together with the frame 2 (moves around the drive shaft 32 on the root side of the wiping unit 1) will be referred to as a "moving unit" S. An example will be explained in detail.

As shown in FIG. 6, the moving unit S includes a foot section 4 and a moving section 51 of the riding section 5. As shown in FIG.

As described above, the foot portion 4 includes the main body 41, the support body 42, and the joint portion 43 that movably connects the main body 41 and the support body 42.

As shown in FIG. 8, the main body 41 is constituted by, for example, a long, generally plate-shaped member. The entire length (length from the proximal end to the distal end) of the main body 41 is such that the wiping part 1 does not come into contact with the mounting surface N1 and the target surface M1 in the standby position and on the return trip, or longer. In addition, as described later, when the foot roller 417 is provided, the length from the base end to the distal end of the foot roller 417 is defined as the total length.

The main body 41 has a proximal end portion 411 having a narrow depth, a distal end portion 412 that is convex toward the mounting surface, and an intermediate portion 413 between the proximal end portion 411 and the distal end portion 412.

The base end portion 411 is configured to come into contact with the frame 2 so that the foot portion 4 does not bend during the return trip. With this configuration, with a simple configuration, the foot portion 4 can be prevented from bending only on the outward journey and not on the returning journey.

More specifically, as shown in the figure, the proximal end portion 411 has a flat surface 4111 on the front side of the proximal end surface, and an inclined surface 4112 on the back side that slopes toward the mounting surface (distal end side). Ru. As a result, the inclined surface 4112 of the proximal end portion 411 does not come into contact with the back surface of the flat plate portion 211 of the frame 2 on the outward trip, allowing the foot portion 4 to bend, and on the return trip, the flat surface 4111 does not contact the back surface of the flat plate portion 211 of the frame 2. The bending of the foot part 4 is suppressed by surface contact with the back surface, so that the foot part 4 is bent only in one direction. Note that the inclined surface 4112 may include an arcuate surface, or may be formed as an arcuate surface instead of the inclined surface 4112 so as not to suppress the bending of what is in contact with the back surface of the flat plate portion 211.

The distal end portion 412 is preferably formed such that its distal end surface is convex toward the target surface. The end portion 412 is preferably provided with a foot hole 414 penetrating in the thickness direction, and a foot roller 417 is installed using this foot hole 414 (see FIG. 6). Preferably, the foot roller 417 of the main body 41 rolls on the mounting surface N1 or the installation surface. With this configuration, the operation of the main body 41 becomes smoother.

Note that the main body 41 may not include the foot rollers 417, and the distal end portion 412 may move in contact with the mounting surface N1 or the installation surface. By way of example, the distal end surface of the distal end portion 412 may be formed in a slippery shape such that the distal end surface slides on the mounting surface N1 or installation surface. As an example, a sliding member may be provided on the distal end face of the distal end portion 412, and this sliding member may slide on the mounting surface N1 or the installation surface.

The intermediate portion 413 is provided with a joint hole portion 415 that penetrates in the thickness direction. The main body 41 is movably attached to the joint part 43 using the joint hole part 415.

The intermediate portion 413 preferably has a sloped surface 4131 on the rear side that slopes toward the distal side. Although it depends on the inclination angle of the main body 41 (the degree of bending of the foot portion 4), if the main body 41 inclines significantly, there is a risk that the back side of the intermediate portion 413 will come into contact with the flat plate portion 211 of the frame 2. The inclined surface 4131 on the back side of the intermediate portion 413 allows the inclination without interfering with the frame 2 even when the main body 41 inclines significantly.

The main body 41 preferably further includes a side plate portion 416 orthogonal to the base end portion 411 and the intermediate portion 413. The side plate portion 416 is located closer to the proximal end than the center of the joint hole portion 415 . The side plate portion 416 is preferably provided on the front side of the base end portion 411 so as to be continuous with the side end surface of the main body 41 . The side plate portion 416 is provided with a locking portion 4161 for locking one end of an elastic member 44, which will be described later.

As shown in FIG. 9, the support body 42 is, for example, constituted by a generally plate-shaped member shorter than the main body 41, and includes a base end portion 421, a support portion 422, and a side plate portion 423.

The proximal end portion 421 preferably has a flat proximal end surface and is in contact with the back surface of the flat plate portion 211 . The base end portion 421 is installed substantially parallel to the base end portion 411 of the main body 41.

The support portion 422 is provided with a joint hole portion 424 that penetrates in the thickness direction. A joint shaft portion 431 of a joint portion 43, which will be described later, is supported by a support body 42.

The side plate portion 423 is provided so as to be orthogonal to the base end portion 421 and the support portion 422. The side plate portion 423 is provided on the back side of the base end portion 421 so as to be continuous with the side end surface of the support body 42 . The side plate portion 423 is provided with a fixing hole 425 penetrating in the thickness direction, and the support body 42 is attached to the frame 2 using the fixing hole 425. The side plate portion 423 is preferably provided with a locking portion 4231 for locking the other end of the elastic member 44, which will be described later.

As shown in FIG. 6 , the joint portion 43 has a joint shaft portion 431 that passes through the joint hole portion 415 of the main body 41 and the joint hole portion 424 of the support body 42 . As the main body 41 rotates around the joint shaft 431, the foot 4 bends to form a predetermined angle with the reference line C. The foot roller 417 of the main body 41 is installed at the distal end 412 so that the reference line C passes through its axis.

The foot portion 4 preferably includes an elastic member 44 extending between the main body 41 and the support body 42 on the proximal side of the axis of the joint shaft portion 431 of the joint portion 43 . As an example, a coil spring is used for the elastic member 44. The elastic member 44 has one end hooked on the locking portion of the side plate portion 416 of the main body 41 and the other end hooked on the locking portion of the side plate portion 423 of the support body 42, thereby biasing the two in a direction toward each other. do. By providing the elastic member 44, the extension movement of the foot 4 becomes smoother.

The moving part 51 of the riding part 5 is preferably constituted by a rotating body. With this configuration, the operation of the riding portion 5 becomes smoother.

The moving part 51 is preferably rotatably attached to the joint shaft part 431 of the joint part 43. Thereby, the elevating mechanism V can be configured in a well-organized and compact manner, and can be easily assembled into an existing wiper device.

As shown in FIG. 7, the moving unit S is mainly assembled around the joint shaft portion 431. As shown in FIG.

Specifically, the joint shaft portion 431 has a flange portion 4311 on the base side for preventing slippage, and the moving portion 51 having a through hole portion in the center is first fitted into the shaft portion. Then, a stopper (for example, an E-ring, the same applies hereinafter) 451 is inserted into a stopper groove provided at a predetermined position.

Next, a stopper 452 is inserted into a stopper groove on the shaft portion of the joint shaft portion 431 at a predetermined distance from the moving portion 51, and then an auxiliary portion 432 having a small diameter portion on the distal end side is fitted. Then, the main body 41 is fitted with the joint hole portion 415 aligned with the small diameter portion of the auxiliary portion 432, and after the auxiliary portion 433 is fitted, the stopper 453 is inserted into the stopper groove at a predetermined position.

Thus, the joint part 43 preferably includes an auxiliary part 432 and an auxiliary part 433 installed on both sides of the main body 41. By providing these, the range of movement of the main body 41 is defined, and the bending motion of the foot 4 becomes smoother.

Finally, after combining with the support body 42 so that the joint shaft part 431 protrudes from the joint hole part 424 of the support body 42, the stopper 454 is inserted into the stop groove at a predetermined position, and the joint shaft part 431 is centered. Complete assembly.

When the foot roller 417 is provided, the foot roller 417 is further assembled. For example, as shown in the figure, the foot roller 417 includes a roller shaft portion 4171 having a flange portion on the base side, a rotating body 4172, a rotating body 4173, and a stopper 4174, and includes a foot hole portion 414 of the main body 41. Use and assemble. The foot roller 417 is assembled here so that the rotating body 4172 and the rotating body 4173 are installed on both sides of the main body 41.

Preferably, in the elevating mechanism V, each of the rotating bodies is made of resin (for example, PEEK) from the viewpoint of preventing rust.

FIG. 10 is a diagram for explaining an example of a rail plate of a lifting mechanism according to an embodiment of the present invention, and is a partially enlarged view of FIG. 5.

The elevating mechanism V preferably includes a rail plate 6 fixed to the mounting surface N1. In this case, the above-mentioned installation surface is constituted by the surface of the flat part 61 of the rail plate 6, and the above-mentioned fixing part 52 of the riding part 5 is constituted by the upright part 62 of the rail plate 6.

The rail plate 6 preferably has a flat portion 61 and an upright portion 62 integrally formed using a generally plate-shaped member. By configuring in this way, the number of parts can be reduced and the configuration can be made simpler. Furthermore, the effort required to adjust the relative positions of the flat portion 61 and the upright portion 62 can be saved.

The flat portion 61 is preferably formed to correspond to the moving path of the main body 41 of the foot portion 4. As in the illustrated example, when the moving path of the foot 4 is arcuate, it preferably has an arcuate portion 611 having an arcuate shape. Although not shown, if the movement path of the foot portion 4 is linear, it preferably has a rectangular orthogonal portion. The flat portion 61 preferably has an extending portion 612 on the base side of the arcuate portion (or straight portion) 611 . In the rail plate 6, the flat portion 61 is placed on the mounting surface N1, and the extending portion 612 is fixed to the mounting surface N1 with nuts, screws, or the like. The flat portion 61 has a terminal end portion 613 corresponding to the terminal position.

In this way, the elevating mechanism V is constructed by providing the flat part 61 and providing an installation surface on which the feet 4 touch and move, separately from the mounting surface N1 which is the surface of the front plate N. Prevents paint from peeling off. Note that the installation surface on which the foot portion 4 of the elevating mechanism V contacts and moves may be configured separately from the upright portion 62 using a dedicated member.

The upright portion 62 is provided on the back side of the terminal end portion 613 of the flat portion 61. The upright portion 62 is provided so as to stand upright at an angle of 90 degrees with the flat portion 61, and here is provided so as to continue to the back side of the terminal end portion 613 to form a corner portion.

The proximal end surface of the upright portion 62 on which the movable portion 51 rides is formed as an inclined surface 621 whose distal end side is inclined toward the mounting surface side, and the portion continuing from the inclined surface 621 is formed as a flat surface 622. Since the upright portion 62 includes the inclined surface 621, the movable portion 51 can easily climb onto it.

Although not shown, the elevating mechanism V preferably further includes a biasing member that biases the frame 2 toward the target surface. The biasing member installed on this frame 2 is not particularly limited. As an example, a coil spring is used as the biasing member. For example, the biasing member is installed on the base side of the axis of the connecting shaft 232, and biases the base side in a direction away from the target surface, thereby biasing the opposite tip side toward the target surface. , is configured to urge the wiping section 1 toward the target surface.

FIG. 11 is a diagram for explaining an example of the operation of a wiper device according to an embodiment of the present invention. Although the illustration is an example of turning reciprocating movement, the following operation is the same in the case of linear reciprocating movement.

(1) In the standby position of the wiper device W, the foot portion 4 is in an extended state, and the foot roller is in contact with the flat portion of the rail plate 6. Thereby, even when the biasing member is provided, the wiping part 1 is floating from the mounting surface N1 or the target surface M1.

(2) When starting wiping, the frame 2 moves by the forward drive of the drive unit, and when the foot part 4 moves together with the frame 2, the foot roller and the flat part (installation surface) of the rail plate 6 cause friction between the foot roller and the flat part (installation surface) of the rail plate 6. The portion 4 is bent and the elastic member is expanded. Then, the frame 2 approaches the target surface M1 by the foot section 4, and the wiping section 1 comes into contact with the target surface M1 and starts wiping. When the biasing member is provided, since the frame 2 is biased toward the target surface M1, the bending motion and the wiping start motion become smoother.

(3) When the wiping section 1 finishes wiping and the wiper device W moves to the terminal position, the moving section 51 rides on the upright portion of the rail plate 6. As a result, the entire wiper device W is lifted up, and the foot portion 4 is lifted up. The foot portion 4 is no longer subjected to frictional force, and is also extended by the tensile force of the elastic member. The flat surface of the main body of the foot section 4 is in contact with the back surface of the flat plate section of the frame 2, and the extended posture is maintained without being bent in the opposite direction.

(4) When returning, the frame 2 moves by driving in the reverse direction of the drive section, and the moving section 51 and the foot section 4 move together with the frame 2. The moving part 51 descends from the upright part of the rail plate 6, and the foot part 4 comes into contact with the flat part of the rail plate 6 again. The foot rollers of the foot portion 4 roll and move on the flat portion of the rail plate 6, but the extended posture is maintained. Thereby, the wiping unit 1 returns to the standby position while remaining lifted from the target surface M1.

In this way, in the wiper device W, since the wiping part 1 does not come into contact with the target surface M1 on the return trip, water droplets etc. wiped off on the return trip are not dragged back home on the return trip.

Further, since the wiper device W has the wiping portion 1 floating in the standby position, etc., it is not subjected to any load and is not easily deformed, so that the life span of the wiper device W is extended.

Moreover, since the wiper device W can realize the wiping operation and the raising/lowering operation by driving one driving section, there is no need to provide a separate driving section.

Furthermore, since the elevating mechanism V can be installed by simply attaching the moving unit S to the wiper part U and attaching the fixed part 52 or the rail plate 6 to the mounting surface N1, it is suitable for existing wiper devices.

Although the embodiments of the wiper device and camera device according to the present invention have been described above, these are only examples of the present invention, and the present invention is not limited thereto. The present invention includes combinations of the above-described embodiments and their modifications, as well as various modifications. Various additions, changes, and partial deletions can be made without departing from the conceptual idea and spirit of the present invention derived from the content defined in the claims and equivalents thereof.

DESCRIPTION OF SYMBOLS 100... Camera device, 1... Wiping part, 2... Frame, 3... Connection part, 4... Foot part, 41... Main body, 42... Support body, 43... Joint part, 44... Elastic member, 5... Riding part, 51 ... Moving part, 52... Fixed part, 6... Rail plate, 61... Flat part, 62... Upright part, K... Housing, N... Front plate, N1... Mounting surface, M... Window, M1... Target surface, W...wiper device, U...wiper section, V...lifting mechanism, S...movement unit.

Claims (6)

A wiper device,
a wiping part that wipes the target surface;
a frame that supports the wiping section;
an elevating mechanism capable of separating the wiping section from the target surface,
The elevating mechanism has a foot section installed on the frame, and the foot section is bent so that the wiping section contacts and wipes the target surface on the outward trip, and the wiping section separates from the target surface on the return trip. A wiper device, characterized in that the foot portion extends so as to do so. According to claim 1, the foot portion moves together with the wiping portion while being in contact with a mounting surface to which the wiper device is attached or an installation surface installed on the mounting surface on the outward journey. Wiper device as described. The wiper device according to claim 2, wherein the foot includes a main body, a support fixed to the frame, and a joint movably connecting the main body and the support. The elevating mechanism includes a riding part for extending the foot part,
The wiper device according to claim 2, wherein the riding part includes a moving part that moves together with the foot part, and a fixed part on which the moving part rides on at the end of an outgoing path. The wiper device according to claim 3, wherein the base end of the main body contacts the frame so as not to bend during the return trip. A camera device, characterized in that the wiper device according to any one of claims 1 to 5 is provided in a housing housing a camera.

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