JP2011047494A - Sliding device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a resin sliding device which stably slides for movement even using a slide rail member having high accuracy such as a LM guide. <P>SOLUTION: This sliding device includes: a box-like body 1; a housing box 2 arranged freely to reciprocate in a straight line relative to the box-like body 1; and a sliding mechanism 3 interposed between them. The sliding mechanism 3 includes an LM rail 30 and an LM block 31, and the LM rail 30 is fixed to a sheet metal upper 5, and the LM block 31 is fixed to a sheet metal lower 4 together with a rubber plate 40 with a bolt member 6 through a collar 60. Since a clearance Q exists between the collar 60, the rubber plate 40 and the sheet metal lower 4 and the sheet metal lower 4 is fixed in the state of floating relative to the sliding mechanism 3, a dimensional accuracy difference between the sheet metal lower 4 and the sliding mechanism 3 can be absorbed. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a sliding device such as a cup holder, a table, and a storage box that is mounted on an automobile or the like and used by being pulled out.

  The automobile is provided with various slide devices such as a cup holder, a table, and a storage box that are pulled out and stored in an instrument panel or a console box when not in use. These slide devices are composed of a movable body and a box-like body that holds the movable body so that the movable body can be moved in and out. For example, a guide rail formed on the inner wall surface of the box-like body, and a sliding portion formed on the side surface of the movable body The movable body can be stably moved in and out by sliding.

  However, since the movable body and the box-shaped body are generally formed by molding from resin, deformation due to shrinkage after molding occurs, and the frictional resistance between the guide rail and the sliding portion may increase. For this reason, grease or the like is applied to the sliding surface, but there is a problem that the grease that protrudes during assembly is attached to other parts. In addition, since the dimensional accuracy is low, there is a problem that rattling occurs.

  Therefore, Patent Document 1 or Patent Document 2 proposes a slide mechanism in which a resin spring that can slide while interfering with the rail portion is formed on the movable portion. According to this slide mechanism, rattling can be prevented by the resin spring. However, it is necessary to apply grease.

  On the other hand, Patent Document 3 describes a console box using a metal slide rail member including a fixed portion and a slide portion. By using a metal slide rail member and fixing the fixed part to the box-shaped body and fixing the slide part to the movable body, the movable body can be stably moved in and out by relative sliding movement between the fixed part and the slide part. . Also, problems such as grease sticking out can be avoided.

  In recent years, LM (Linear Motion) guides have been developed and widely used as metal slide rail members. This LM guide has the feature of being accurate and sub-micron, and compact and lightweight. Therefore, if this LM guide is used, stable slide movement can be achieved, and the degree of freedom of mounting in a limited mounting space is increased, and the degree of freedom of design is also improved.

JP 2006-336818 JP2003-082925A JP 2008-037203 A

  However, when the LM guide is used in a resin slide device, it has become clear that there are the following problems. That is, the dimensional accuracy and shape accuracy of the LM guide are 10 to 100 times higher than the dimensional accuracy and shape accuracy of resin molded products and sheet metal members. Therefore, when trying to fix to a resin slide device or to fix to a resin molded product via a sheet metal member, even if the mounting hole is displaced or fixed, a large load acts on the LM guide and slides. There is a problem that resistance becomes high.

  The present invention has been made in view of such circumstances, and solves the problem that a resin-made slide device can be stably slid even if a slide rail member having high accuracy such as an LM guide is used. It should be a challenge.

A feature of the slide device of the present invention that solves the above problem is that the first member, the second member that is linearly reciprocable with respect to the first member, and between the first member and the second member A slide device comprising a slide mechanism interposed between
The slide mechanism includes a rail fixed to one of the first member and the second member, and a slide block held slidably on the rail and fixed to the other of the first member and the second member.
At least one of the rail and the slide block is fixed to at least one of the first member and the second member via a plate-like elastic body that can be elastically deformed at least in the thickness direction by a bolt member whose fastening depth is regulated,
At least one of the rail and the slide block has a mounting hole to which the bolt member is fastened, and the plate-like elastic body has a first through hole through which the bolt member is inserted with a predetermined clearance in the radial direction. And at least one of the second members has a second through-hole through which the bolt member is inserted with a predetermined clearance in the radial direction, and the bolt member is inserted through the first through-hole and the second through-hole in this order. It is in being connected to.

  It is desirable that a metal plate is further laminated on the surface of the plate-like elastic body, and the metal plate is interposed between the head of the bolt member and the plate-like elastic body.

  According to the slide device of the present invention, at least one of the first member and the second member has a predetermined clearance in the radial direction with the bolt member and is fixed to the slide mechanism. Therefore, even if a dimensional deviation occurs between at least one of the first member and the second member and the slide mechanism, the other of the first member and the second member is only the amount of this clearance relative to the slide mechanism. Relative movement in the radial direction is possible. At least one of the first member and the second member is fixed to the slide mechanism via a plate-like elastic body that can be elastically deformed in the thickness direction by a bolt member whose fastening depth is regulated. Therefore, at least one of the first member and the second member can be moved relative to the slide mechanism in the thickness direction of the plate-like elastic body.

  That is, according to the slide device of the present invention, at least one of the first member and the second member is fixed to the slide mechanism in a so-called floating state in which the first member and the second member can move relative to each other in the thickness direction and the direction orthogonal to the thickness direction. Therefore, it is possible to absorb the variation in the size of at least one of the first member and the second member and the difference in dimensional accuracy from the slide mechanism. Therefore, the slide device can be expressed without hindering the stable slide movement of the slide mechanism such as the LM guide and has excellent operability.

  Further, if the metal plate is further laminated on the surface of the plate-like elastic body and the metal plate is interposed between the head of the bolt member and the plate-like elastic body, the plate-like elastic body is locally Large elastic deformation can be prevented, and a problem that the head of the bolt member is immersed in the plate-like elastic body can be prevented.

It is a disassembled perspective view which shows the components structure of the slide apparatus which concerns on one Example of this invention. It is principal part sectional drawing of the slide apparatus which concerns on one Example of this invention. It is principal part sectional drawing of the slide apparatus which concerns on the 2nd Example of this invention. It is principal part sectional drawing of the slide apparatus which concerns on the 3rd Example of this invention.

  The first member and the second member refer to a movable body and a box-like body that holds the movable body so as to be able to enter and exit, and can be appropriately selected according to the use, such as a cup holder, a table, and a storage box. . For example, a slide device in which a storage box as a movable body is detachably arranged on a box-like body provided in an instrument panel will be described as an example. When the first member is a box-like body, the second member becomes a storage box, When the first member is a storage box, the second member is a box-shaped body.

  At least one of the first member and the second member may be a resin molded product, or may be configured by a resin molded product and a sheet metal member fixed to the resin molded product.

  A slide mechanism is interposed between the first member and the second member. The slide mechanism includes a rail fixed to one of the first member and the second member, and a slide block held slidably on the rail and fixed to the other of the first member and the second member. When the rail is fixed to the first member, the slide block is fixed to the second member, and when the rail is fixed to the second member, the slide block is fixed to the first member. This slide mechanism is preferably made of a metal, and is preferably an LM guide composed of an LM rail and an LM block. In the case of the LM guide, any of an LM guide with a ball retainer, an LM guide with a roller retainer, and a total ball type LM guide can be used.

  At least one of the rail and the slide block is fixed to at least one of the first member and the second member via a plate-like elastic body that can be elastically deformed at least in the thickness direction by a bolt member whose fastening depth is regulated. . As the bolt member in which the fastening depth is regulated, a stepped bolt or a bolt in which a cylindrical collar is inserted can be used. In the case of a stepped bolt, the fastening depth is regulated by the stepped portion, and when the collar is used, the fastening depth can be regulated by the length (height) of the collar.

  At least one of the rail and the slide block has a mounting hole to which the bolt member is fastened, and the plate-like elastic body has a first through hole through which the bolt member is inserted with a predetermined clearance in the radial direction. And at least one of the second members has a second through hole through which the bolt member is inserted with a predetermined clearance in the radial direction, and the bolt member is inserted and attached in the order of the first through hole and the second through hole. It is fastened to the hole.

  That is, according to the slide device of the present invention, at least one of the first member and the second member is fixed to the slide mechanism in a so-called floating state in which the first member and the second member can move relative to each other in the thickness direction and the direction orthogonal to the thickness direction. . Both the rail and slide block of the slide mechanism may be fixed to the first member and the second member in a floating state, or only one of them may be used. Of the first member and the second member, it is desirable that the movable body side is firmly fixed without being in a floating state, and the box-like body side is in a floating state. As a result, it is possible to prevent rattling during sliding movement on the movable body side.

  Hereinafter, a case where the slide block is fixed to the first member, the rail is fixed to the second member, and the first member and the slide block are fixed in a floating state will be described as an example. A plate-like elastic body is interposed between the first member and the slide block. The fixing means for the second member and the rail is not particularly limited, and known fixing means such as screws, claw engagement, and welding can be used.

  The plate-like elastic body is fixed to the slide block by a bolt member. As the bolt member, one that is screwed into and fixed to a mounting hole formed in the slide block is used. The plate-like elastic body has a first through hole through which the bolt member is inserted with a predetermined clearance, the first member has a second through hole through which the bolt member is inserted with a predetermined clearance, The bolt member is inserted through the first through hole and the second through hole in this order, and is fastened to the mounting hole.

  That is, the plate-like elastic body is sandwiched between the head of the bolt member and the first member. The plate-like elastic body preferably has a rubber hardness of 10 to 60 degrees using a durometer, and is preferably around 30 degrees. Further, the thickness of the plate-like elastic body is not particularly limited, but it is desirable to have a thickness greater than the dimensional accuracy of the first member. Similarly, the clearance between the first through hole and the second through hole and the bolt member is preferably equal to or greater than the dimensional accuracy of the first member, and the upper limit is not particularly limited.

  The plate-like elastic body is sandwiched between the head of the bolt member and the first member by a bolt member whose fastening depth is regulated. That is, the plate-like elastic body is sandwiched between the head of the bolt member and the first member with little or no elastic deformation in the thickness direction. Therefore, the plate-like elastic body is fixed in a state where it can be elastically deformed in the thickness direction.

  It is desirable that a metal plate is further laminated on the surface of the plate-like elastic body, and the metal plate is interposed between the head of the bolt member and the plate-like elastic body. By doing in this way, it can prevent that a plate-shaped elastic body elastically deforms large locally, and can prevent the malfunction that the head of a bolt member immerses in a plate-shaped elastic body. Therefore, the size of the metal plate is preferably larger than the diameter of the first through hole and larger than the diameter of the head of the bolt member.

  Hereinafter, the present invention will be specifically described with reference to the drawings.

  FIG. 1 shows a component configuration of the slide device of this embodiment. This slide device includes a box-like body 1 as a first member, a storage box 2 as a second member, a pair of left and right LM guides 3 as a slide mechanism, a sheet metal lower 4, and a sheet metal upper 5. Has been. Each of the pair of LM guides 3 includes an LM rail 30 and two LM blocks 31 that are slidably held on the LM rail 30.

  The pair of LM rails 30 is fixed in parallel to each other on the right and left sides of the lower surface of the sheet metal upper 5 by screws (not shown), and the sheet metal upper 5 is fixed to the bottom surface of the storage box 2 by screws (not shown).

  On the other hand, the LM block 31 is fixed to the sheet metal lower 4 together with a rubber plate 40 having a rubber hardness of 30 degrees and a thickness of 2 mm while being slidably held on the LM rail 30. The fixed state is shown in FIG. The sheet metal lower 4 is fixed to the lower part of the box-like body 1 with screws (not shown). A storage space for storing the storage box 2 to which the sheet metal upper 5 is fixed is defined by the upper bottom of the box-shaped body 1 and the sheet metal lower 4.

  Each LM block 31 has four mounting holes 32 as female threads. The rubber plate 40 is formed with first through holes 41 at positions corresponding to the four mounting holes 32. The sheet metal lower 4 is further formed with second through holes 42 at positions corresponding to the four attachment holes 32. Then, the sheet metal lower 4 and the rubber plate 40 are laminated on the LM block 31 so that the first through hole 41, the second through hole 42, and the mounting hole 32 are coaxial, and the bolt 6 is connected to the first through hole 41 and the second through hole. It is fixed by passing through the hole 42 and screwing into the mounting hole 32. A metal cylindrical collar 60 is inserted into the bolt 6.

  The outer diameter of the collar 60 is larger than the diameter of the mounting hole 32 and smaller than the diameters of the first through hole 41 and the second through hole 42. The length (height) of the collar 60 is slightly smaller than the total thickness of the sheet metal lower 4 and the rubber plate 40. Therefore, the fastening depth of the bolt 6 is regulated by the collar 60 and the rubber plate 40 is slightly compressed, but the elastic deformation of the rubber plate 40 in the thickness direction is sufficiently possible. A predetermined clearance Q is formed between the inner peripheral surface of the first through hole 41 and the second through hole 42 and the outer peripheral surface of the collar 60.

  That is, according to the slide device of this embodiment, even if the accuracy of the shape and size of the sheet metal lower 4 is lower than the accuracy of the LM guide 3, the dimensional difference in the thickness direction is absorbed by the elastic deformation of the rubber plate 40 in the thickness direction. The clearance Q can absorb the dimensional difference in the direction orthogonal to the thickness direction. Therefore, in the mounting state in which the storage box 2 is attached to the box-shaped body 1, it is possible to prevent a large load from being applied to the LM guide 3 from the sheet metal lower 4 and the sheet metal upper 5, and the LM block 31 is stably moved relative to the LM rail 30. The storage box 2 can be stably moved in and out of the box-like body 1.

  Further, since the LM guide 3 has a compact shape, the shape of the box-shaped body 1 and the storage box 2 can be formed compactly, and effective use of a limited mounting space can be achieved.

  In this embodiment, the LM block 31 is fixed to the box-shaped body 1 and the LM rail 30 is fixed to the storage box 2. However, the LM rail 30 is fixed to the box-shaped body 1 and the LM block 31 is fixed to the storage box 2. It may be fixed. Similarly, the LM block 31 and the LM rail 30 can be directly fixed to the box-shaped body 1 and the storage box 2 without using the sheet metal lower 4 and the sheet metal upper 5 by using the rubber plate 40, the bolt 6 and the collar 60. .

  FIG. 3 shows a cross-sectional view of the main part of the slide device of this embodiment. The present embodiment is the same as the first embodiment except that the collar 60 is not used and the stepped bolt 62 is used.

  The outer diameter of the large diameter portion 63 of the stepped bolt 62 is larger than the diameter of the mounting hole 32 and smaller than the diameters of the first through hole 41 and the second through hole 42. Further, the length (height) of the large diameter portion 63 is slightly smaller than the total thickness of the sheet metal lower 4 and the rubber plate 40. Accordingly, the fastening depth of the bolt 6 is regulated by the large diameter portion 63 and the rubber plate 40 is slightly compressed, but elastic deformation in the thickness direction of the rubber plate 40 is sufficiently possible. . A predetermined clearance Q is formed between the inner peripheral surface of the first through hole 41 and the second through hole 42 and the outer peripheral surface of the large diameter portion 63.

  Therefore, also in the slide device of the present embodiment, the same effect as that of the first embodiment is exhibited.

  FIG. 4 shows a cross-sectional view of the main part of the slide device of this embodiment. In this embodiment, there is a hole between the head of the bolt 6 and the rubber plate 40 having a through hole having an outer diameter larger than the diameter of the head of the bolt 6 and slightly larger than the diameter of the shaft of the bolt 6. Example 1 is the same as Example 1 except that a disk-shaped metal plate 7 is interposed.

  According to the slide device of the present embodiment, the same operational effects as those of the first embodiment are exhibited, and the head of the bolt 6 enters the first through hole 41 of the rubber plate 40 when an excessive load is applied. It is possible to surely prevent a problem that the effect due to the floating structure is not achieved.

1: Box-shaped body (first member)
2: Storage box (second member)
3: LM guide (slide mechanism)
30: LM rail, 31: LM block, 32: mounting hole, 33: ball 4: sheet metal lower (sheet metal member)
40: Rubber plate (plate-like elastic body)
41: 1st through-hole, 42: 2nd through-hole 5: Sheet metal upper (sheet metal member)
6: Bolt member
60: Collar, 62: Stepped bolt, 63: Large diameter part 7: Metal plate Q: Clearance

Claims (6)

A first member; a second member arranged linearly reciprocally with respect to the first member; and a slide mechanism interposed between the first member and the second member. A sliding device,
The slide mechanism includes a rail fixed to one of the first member and the second member, a slide block slidably held on the rail and fixed to the other of the first member and the second member, Consists of
At least one of the rail and the slide block is attached to at least one of the first member and the second member via a plate-like elastic body that can be elastically deformed at least in the thickness direction by a bolt member whose fastening depth is regulated. Fixed,
At least one of the rail and the slide block has a mounting hole to which the bolt member is fastened, and the plate-like elastic body has a first through hole through which the bolt member is inserted with a predetermined clearance in the radial direction. The at least one of the first member and the second member has a second through hole through which the bolt member is inserted with a predetermined clearance in the radial direction, and the bolt member has the first through hole, A slide device, wherein the slide device is inserted in the order of the second through hole and coupled to the mounting hole.   The slide device according to claim 1, wherein at least one of the first member and the second member includes a resin molded product and a sheet metal member fixed to the resin molded product.   The bolt member in which the fastening depth is regulated is a stepped bolt including a screwing portion fastened to the mounting hole and a large diameter portion having a diameter larger than the screwing portion, and an outer periphery of the large diameter portion. The slide device according to claim 1 or 2, wherein a predetermined clearance is formed between a surface and the inner peripheral surface of the first through hole and the second through hole.   The bolt member in which the fastening depth is regulated includes a bolt and a cylindrical collar, and a predetermined clearance is provided between the outer peripheral surface of the collar and the inner peripheral surfaces of the first through hole and the second through hole. The slide device according to claim 1 or 2, wherein the slide device is formed.   The metal plate is further laminated | stacked on the surface of the said plate-shaped elastic body, This metal plate is interposed between the head of the said bolt member, and the said plate-shaped elastic body. Slide device.   The slide device according to claim 1, wherein the rail is an LM (Linear Motion) rail, and the slide block is an LM (Linear Motion) block.

Images