JPH0717633U - Vehicle seat slide device - Google Patents

Abstract

(57) [Summary] [Purpose] To improve the assembling property. [Structure] When the rolling members 40, 45 are temporarily assembled to the retainer member 50, the rolling members are prevented from falling. Therefore, the retainer member 50 and the rolling members 40, 45 are handled collectively. The retainer member 50 can be permanently assembled to the slide rail 10 while holding the rolling members 40 and 45, and the retainer member 5 can be attached to the rail 30 on the seat side.
The rattling prevention projections 57, 58 and 59 of 0 are elastically contacted, and the other portions are prevented from contacting the rail 20 on the vehicle body side and the rail 30 on the seat side. The member 50 does not need to be fitted tightly and can be fitted easily.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a seat provided with a slide rail including a vehicle body side rail fixed to the vehicle body side and a seat side rail fixed to the seat and fitted to the vehicle body side rail so as to be movable back and forth. Regarding a slide device.

[0002]

[Prior art]

 As a conventional seat slide device, for example, there is one disclosed in Japanese Utility Model Publication No. 3-21298. That is, a resin retainer is interposed between the upper rail and the lower rail, and a retaining portion that retains the rolling member on the retainer and a regulating portion that elastically regulates the rolling member to a predetermined position are formed. The holding part and the restriction part prevent the rolling member from rattling, preventing the generation of abnormal noise, and enabling the upper rail to slide smoothly. Further, the retainer is fitted into the gap between the upper rail and the lower rail without any play.

[0003]

[Problems to be solved by the device]

 However, in such a conventional seat slide device, if the rolling member is simply fitted into the retaining portion of the retainer when the rolling member is temporarily assembled to the retainer, the rolling member will fall. , It is difficult to assemble the retainer to the slide rail while holding the rolling member, and the assemblability is not good.In addition, the retainer is installed so that it does not rattle in the gap between the upper rail and the lower rail. There was a problem that it was difficult to fit the retainer because the structure was tightly fitted, and the assembling property was not good from this point as well.

The present invention has been made in view of such conventional problems. The rolling member is temporarily attached to the retainer member so that the rolling member cannot be dropped, and the rail on the vehicle body side and the rail on the seat side are attached. Make sure that the retainer member's play preventing protrusion is elastically abutted on one side of the retainer member, and the other parts do not abut on the vehicle body side rail and the seat side rail. An object of the present invention is to provide a seat slide device that eliminates the need for fitting, facilitates fitting, and improves the assemblability.

[0005]

[Means for Solving the Problems]

 The gist of the present invention for achieving such an object is to fit a rail (20) on the vehicle body side supported on an installation portion of the vehicle body and a rail (20) on the vehicle body side so as to be movable back and forth, A vehicle seat slide device comprising a slide rail (10) having a seat side rail (30) for supporting a seat, comprising: a vehicle body side rail (20) and a seat side rail (30). A rolling member (40a) interposed between the rolling member (40a) and a retainer member (50) holding the rolling member (40a), wherein the rolling member (40a) is a seat side member. It is one of rolling members (40a) rotatably interposed between a horizontal horizontal surface of the rail (30) and a bottom surface of the rail (20) on the vehicle body side facing the horizontal surface. Roller bearing (40), body side rail (20) and seat side Side flange formed on one side of the rail (30) of the vehicle and the other side of the rail (20) on the vehicle body side and the rail (30) on the seat side, and a holding flange for holding the side edge. And a ball bearing (45) which is another one of the rolling members (40a) which is rotatably interposed between the retainer member (50) and the ball bearing (45). The distance between the two toes is made smaller than the roller diameter to hold the roller bearing (40) so that it cannot be dropped, and the pawl (53) for temporary assembly of the roller, which enables the retainer member (50) to be assembled, and the rail. The ball bearing (45) is held so that it cannot be dropped from the longitudinal direction, and a temporary ball mounting portion (56) that allows the ball bearing (45) to be mounted together with the retainer member (50) and the rail (20) on the vehicle body side or the seat side. On one side of the rail (30) A vehicle seat slide device characterized by having a rattling-preventing projection (57, 58, 59) that repulsively abuts and prevents rattling of the retainer member (50). It

[0006]

[Action]

 The claws (53) for temporarily assembling the roller of the retainer member (50) can hold the roller bearing (40) in a non-falling manner because the distance between both facing claws is smaller than the roller diameter. The ball temporary assembly part (56) of the retainer member (50) can hold the ball bearing (45) in the longitudinal direction of the rail so as not to fall, so that the retainer member (50) has a roller bearing (40) and a ball bearing. The bearing (45) can be temporarily assembled.

As a result, the roller bearing (40) and the ball bearing (45) can be permanently assembled to the slide rail (10) together with the retainer member (50). When the retainer member (50) is assembled to the slide rail (10), the protrusions (57, 58, 59) for preventing rattling of the retainer member (50) are mounted on the vehicle body side rail (20) or the seat side. Since the retainer member (50) is prevented from rattling by resiliently contacting one side of the rail (30), parts other than the rattling preventing protrusions (57, 58, 59) are attached to the vehicle body side. The rail (20) and the rail (30) on the seat side do not have to come into contact with each other, the retainer member (50) does not need to be tightly fitted, and the retainer member (50) can be easily assembled.

[0008]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. Each drawing shows an embodiment of the present invention. As shown in FIGS. 2 to 4, the seat slide device supports a seat at an installation place so that the seat can be adjusted in the front-rear position, and a slide rail (not shown) having the same structure as the slide rail 10 is provided on both sides of the seat. They are arranged in parallel with each other.

In the slide rail 10, the vehicle body side rail 20 and the seat side rail 30 are slidably assembled in the front and rear direction by the roller bearing ring 40 and the ball bearing 45, so that the lock mechanism 60 and the front and rear sides of the vehicle body side rail 20 are connected to each other. And fixed leg brackets 15 and 16 for installation. The vehicle body side rail 20 has an upward groove-shaped cross section, and includes a bottom surface portion 21, side walls 22 and 22, holding flanges 23 and 23 parallel to the bottom surface portion 21, and holding flanges 24 and 24, Locking holes 25, 25 ... Are connected to one side wall 22.

The seat-side rail 30 is formed by combining contrasting vertically standing component pieces 31 and 31. Each component piece 31 includes a support plate portion 32 and a horizontal plane portion 33 extending laterally from the support plate portion 32. Both sides of the horizontal plane portion 33 are bent upward to form side edge portions 34. The support plate portions 32, 32 of the component pieces 31, 31 are combined, and the horizontal plane portion 33 is fitted to the vehicle body side rail 20. A roller bearing 40 is interposed between the bottom surface portion 21 of the vehicle body side rail 20 and the horizontal plane portion 33 of the seat side rail 30, and is held between the restraining flange 23 and the horizontal plane portion 33 and side by side with the side edge portion 34. A ball bearing 45 is interposed between the flange 24 and the flange 24.

As shown in FIGS. 1 and 2 to 5, the gap between the bottom surface portion 21 and the horizontal surface portion 33, the space between the restraining flange 23 and the horizontal surface portion 33, and the side edge portion 34 and the holding portion. A retainer member 50 is fitted in the gap formed between the holding flange 24. The retainer member 50 is formed of a resin material, the central portion of the retainer member 50 penetrates in the vertical direction, and the roller bearing 40 fitted from below with its roller shaft orthogonal to the front-rear direction is attached to the front wall 51. It is surrounded by the rear wall 51a and the side walls 52. The front wall 51 and the rear wall 51a are provided with pawls 53 for temporarily assembling the rollers, which hold the roller bearing 40 in a non-falling manner by making the distance between the two opposing toes smaller than the roller diameter.

The retainer member 50 is formed so as to go around the gap formed between the side edge portion 34 and the holding flange 24. The wraparound portion has an annular cross-sectional shape, and a storage space for the ball bearing 45 is formed at the center in the longitudinal direction of the rail, which is the longitudinal direction of the rail. The wall 56b serves as a temporary ball mounting portion 56 that holds the ball bearing 45 from the front and rear directions so as not to fall, and the ball bearing 45 is attached to the front wall 56a having an annular cross section and the rear wall 56b having an annular cross section. Part of the spherical surface of is inlaid respectively. The retainer member 50 is provided with projections 57, 58, 59 for preventing rattling that resiliently contact the rail 30 on the seat side and prevent rattling of the retainer member 50. The rattling-preventing protrusion 57 is elastically abutted on the central portion of the horizontal surface portion 33 from below, and the rattling-preventing protrusion 58 is elastically resilient to the side edge 34 from the outside. The protrusions 59 for preventing backlash are elastically abutted on both ends of the horizontal surface portion 33 from above.

A gap is formed between the seat-side rail 30 and a portion other than the protrusions 57, 58, 59 for preventing rattling. Further, the surfaces 57a, 58a, 59a, which are the surfaces on the side opposite to the surface on which the protrusions 57, 58, 59 for preventing rattling are formed and which face the vehicle body side rail 20, contact the vehicle body side rail 20. A gap is positively formed between the vehicle body side rail 20 and the rail 20 so that they do not come into contact with each other. An operating shaft 63 is rotatably supported by curl portions 62, 62 formed on both sides of the tip of the base bracket 61 and extends forward. The operating shaft 63 is also pivotally supported by a pivot bracket 65 fixed to the seat side rail 30. A base portion of a latch member 66 that is selectively engaged with locking holes 25, 25, ... Connected to the side wall 22 of the vehicle body side rail 20 between the curl portions 62, 62 is fixed to the operation shaft 63. . Engaging projections that can be engaged with and disengaged from the engaging holes 25, 25 ... Are formed at the tip of the latch member 66. The operating shaft 63 is biased by a biasing force in a direction in which the engaging projection of the latch member 66 is engaged with the locking holes 25, 25 ...

Next, the operation will be described. The roller bearing 40 is housed so as to be surrounded by the front wall 51, the rear wall 51a, and the side walls 52 of the retainer member 50, and the roller temporary assembly claws 53 formed on the front wall 51 and the rear wall 51a, respectively. Since the distance between the opposing toes is smaller than the roller diameter, the roller bearing 40 can be held so as not to fall. Further, in the temporary ball assembly portion 56 of the retainer member 50, a part of the spherical surface of the ball bearing 45 is fitted into the front wall 56a and the rear wall 56b of the retainer member 50, so to speak, the ball bearing 45 is dropped from the front rear direction. It is designed to hold incapability. As a result, the roller bearing 40 and the ball bearing 45 can be temporarily assembled to the retainer member 50.

Therefore, the roller bearing 40 and the ball bearing 45 can be handled together with the retainer member 50, and the slide rail 10 can be permanently assembled together. When the retainer member 50 is assembled to the slide rail 10, the protrusions 57, 58, 59 of the retainer member 50 for preventing rattling resiliently contact the seat-side rail 30 to prevent looseness of the retainer member 50. The retainer member 50 can be prevented from coming into contact with the seat-side rail 30 without contacting any portion other than the protrusions 57, 58, 59 for preventing rattling, and the retainer member 50 can be firmly fitted. Therefore, the retainer member 50 can be easily inserted from the end of the slide rail 10 into the gap between the vehicle body side rail 20 and the seat side rail 30.

When the handle 64 (not shown) is operated from this state, the operation shaft 63 rotates against the biasing force, the latch member 66 rotates, and the engagement protrusion thereof locks the vehicle body side rail 20. Separate from the holes 25, 25. Since the engaging projection of the latch member 66 is disengaged from the locking holes 25, 25, ..., The seat-side rail 30 can be moved in the front-rear direction with respect to the vehicle-body-side rail 20, and the entire seat is moved to a desired position. Move to position. When the desired position is determined, the handle 64 is released, the interlocking lever 64 is returned, the latch member 66 is returned, and the engaging projection of the latch member 66 is engaged with any one of the locking holes 25, 25 ... As a result, the position of the seat is fixed and fixed.

According to the seat slide device of the above-described embodiment, the seat slide device has a surface opposite to the surface on which the protrusions 57, 58, 59 for preventing backlash are formed, and faces the vehicle body side rail 20. Since the surfaces 57a, 58a, and 59a to be contacted are not positively contacted with the vehicle body-side rail 20, a gap is positively formed between the surfaces 57a, 58a, and 59a. Even when 59, 59 are pushed back by the reaction force of the repulsive force, the surfaces 57a, 58a, 59a facing the vehicle body side rail 20 do not abut the vehicle body side rail 20, and the vehicle body side rail 20 and the seat side rail 20a. It does not become a factor of sliding resistance when moving relative to 30.

[0018]

[Effect of device]

 According to the seat slide device of the present invention, when the rolling member is temporarily assembled to the retainer member, the rolling member is prevented from falling, so that the retainer member and the rolling member are handled collectively. The retainer member can be fully assembled to the slide rail while holding the rolling member, which improves the assemblability, and the retainer member is loose on one of the vehicle body side rail and the seat side rail. The prevention projection is elastically contacted so that the other parts do not have to contact the vehicle body side rail and the seat side rail, so there is no need to fit the retainer member firmly, It can be fitted easily, and the assembling property can be improved also from this point.

[Brief description of drawings]

FIG. 1 is a sectional view taken along line I-I of FIG.

FIG. 2 is a perspective view of a seat slide device showing an embodiment of the present invention.

FIG. 3 is a sectional view of an essential part of a seat slide device showing an embodiment of the present invention.

FIG. 4 is an exploded perspective view of a retainer member and a rolling member according to an embodiment of the present invention.

5 is a sectional view taken along line VV of FIG.

[Explanation of symbols]

 10 ... Slide rail 20 ... Vehicle side rail 21 ... Bottom part 24 ... Holding brugge 30 ... Seat side rail 33 ... Horizontal plane part 34 ... Side edge part 40 ... Roller bearing 45 ... Ball bearing 50 ... Retainer member 53 ... Temporary roller assembly Claws 56 ... Temporary assembly part 57, 58, 59 ... Projection part 60 for preventing rattling ... Lock mechanism

Claims (1)

[Scope of utility model registration request] 1. A slide rail comprising a rail on a vehicle body side supported on an installation site of a vehicle body, and a rail on the seat side which is fitted to the rail on the vehicle body side so as to be movable back and forth and supports a seat. A vehicle seat slide device provided with a rolling member interposed between a rail on the vehicle body side and a rail on the seat side, and a retainer member for holding the rolling member, wherein: The moving member is a roller bearing that is one of rolling members that is rotatably interposed between a horizontal horizontal surface portion of the seat-side rail and a bottom surface portion of the vehicle body-side rail that faces the horizontal surface portion. A side edge portion formed on one of the vehicle body side rail and the seat side rail, and a holding flange formed on the other side of the vehicle body side rail and the seat side rail, for holding the side edge portion. Which is one of the rolling members that is rotatably interposed between The retainer member is made of a resin material, and the distance between the opposing toes is narrower than the roller diameter to keep the roller bearing from falling and to be assembled together with the retainer member. Hold the ball bearing from the longitudinal direction of the rail and the attachment claw so that it cannot fall,
A temporary ball mounting portion that allows the retainer member to be assembled, and a protrusion for preventing rattling that resiliently contacts one of the vehicle body side rail and the seat side rail to prevent the retainer member from rattling. And a vehicle seat slide device.