CN201792762U

CN201792762U - Long slide rail system of car seat

Info

Publication number: CN201792762U
Application number: CN2010205409661U
Authority: CN
Inventors: 江伟; 虞军
Original assignee: Ningbo Xintai Machinery Co Ltd
Current assignee: Ningbo Xintai Machinery Co Ltd
Priority date: 2010-09-21
Filing date: 2010-09-21
Publication date: 2011-04-13
Anticipated expiration: 2020-09-21

Abstract

The utility model relates to a long slide rail system of a car seat, which comprises an outer rail, an inner rail and a lock mechanism, wherein the upper surface of the outer rail is provided with a longitudinal long hole which is communicated with the inner chamber of the outer rail, the lower end of the inner rail is extended into the inner chamber of the outer rail by the longitudinal long hole, and the inner rail is provided with a bearing which rolls at the bottom of the inner chamber of the outer rail. The long slide rail system is characterized in that the inner rail is further provided with an idler wheel which leans against the side wall of the inner chamber of the outer rail. Compared with the prior art, a plastic support piece in the prior art is placed with the idler wheel, so that the long slide rail system reduces the frictional resistance in the process of sliding, has the advantages of being small in noise and smooth in sliding, can control the left-and-right swaying of the slide rail, can control the up-and-down swaying of the slide rail due to an arc lug boss and the bearing, and leads the car seat to be more stable in sliding, thereby being capable of obviously improving the use comfortableness and security.

Description

The automotive seat long slide type rail system

Technical field

The utility model relates to a kind of auto parts and components, specifically refers to a kind of automotive seat long slide type rail system.

Background technology

Along with the develop rapidly of auto-industry, the seat slide system is also to diversified development.The automotive seat long slide type rail system is mainly used to adjust the inner space of automobile, with raising take advantage of the seat traveling comfort, especially on commercial vehicle (MPV), be employed the most extensive.As Chinese patent Granted publication number for " the automotive seat long track mechanism " of 201272262Y disclose so a kind of device, it comprises bilge logs, glide path, tooth plate, swinging strut, extension spring and two bearings load-bearing combination and plastic supporting pieces.Adopt this long track mechanism, though parts are few, cost is low, assembling and easy and simple to handle, but since be adopt plastic supporting pieces limit about the slide rail, about rock, therefore work as bilge logs with respect to still existing the phenomenon that friction force is big, slide and have some setbacks in the glide path sliding process, cause the slide rail sliding resistance can't satisfy the industry examination criteria of QC/T740-2005; Simultaneously, slide rail left and right rocks and teetertotter also can't be controlled preferably, and still can produce certain different sound.

The utility model content

Technical problem to be solved in the utility model is that a kind of slide smooth and easy, steady and the little automotive seat long slide type rail system of noise are provided at above-mentioned prior art present situation.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: this automotive seat long slide type rail system comprises outer rail, interior rail and lockable mechanism, wherein the outer rail upper surface has the vertical slotted hole that connects with the outer rail inner chamber, the lower edge of rail is stretched in the inner chamber of outer rail in described by vertical slotted hole, and on interior rail, be provided with the bearing that rolls in described outer rail intracavity bottom, it is characterized in that: also be provided with the roller that is resisted against described outer rail intracavity sidewall on the rail in described.

As preferred version of the present utility model, described in the rail lower edge can have respectively the crotch limit that the inner chamber roof to described vertical slotted hole both sides extends, and on the edge on this crotch limit, have the arc convex that leans with described inner chamber roof.Utilize cooperating of arc convex and outer rail inner chamber roof, and the cooperating of bearing and outer rail bottom, the upper and lower shaking phenomenon of slide rail can be controlled preferably.

As another preferred version of the present utility model, described roller is one group with two rollers that are set up in parallel, and the respective side sidewall of each roller of same roller set and outer rail inner chamber leans.So in use, in case roller has wearing and tearing, then can eliminate, and such structure also can reduce working accuracy by the spacing of regulating between two rollers.

Described roller set can have a plurality of, and is good with two, is guaranteeing that cost is lower under the little requirement of double swerve, also is convenient to assembling.

Compared with prior art,, thereby in sliding process, reduced friction drag on the one hand, and it is little to have a noise, the advantage smoothly of sliding because the utility model replaced plastic supporting pieces of the prior art with roller; Also controlled rocking of the left and right direction of slide rail on the other hand, borrowed in arc convex and bearing simultaneously, controlled the phenomenon that teetertotters of slide rail, it is more steady to make seat slide get up, thereby can improve the traveling comfort and the safety of use significantly.

Description of drawings

Fig. 1 is the perspective view of the utility model embodiment under being in the lock state;

Fig. 2 is in perspective view under the released state for the utility model embodiment;

Fig. 3 is the three-dimensional exploded view of roller position, bearing portion among Fig. 2;

Fig. 4 is the protruding structural representation that leans with the inner chamber roof for arc under Fig. 1 state rises;

Fig. 5 is the front view of Fig. 4;

Fig. 6 be among Fig. 5 A-A to section-drawing.

The specific embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

Extremely shown in Figure 6 as Fig. 1, this automotive seat long slide type rail system comprises outer rail 1, interior rail 2 and lockable mechanism, this outer rail 1, interior rail 2 and lockable mechanism all adopt prior art, it is the square structure that the main body section of outer rail 1 is hollow, upper surface at it has the vertical slotted hole 11 that connects with outer rail inner chamber 12, and the edge of this vertical slotted hole extends internally and forms a rib 13; The first interior rail 21 and the second interior rail 22 that interior rail 2 is fitted mutually by top are formed, in first in the rail and second bottom of rail stretch in the inner chamber 12 of outer rail after by vertical slotted hole 11, and opposite respectively bending extends upward after extending again and forms crotch limit 23, has the arc convex 24 that leans with outer rail inner chamber roof on the edge on this crotch limit.In above-mentioned, be fixed with simultaneously two stay bearing plates 3 spaced apart that stretch in the outer rail inner chamber on the rail, each stay bearing plate 3 is equipped with two bearings spaced apart 4 that roll in outer rail inner chamber 12 bottoms by pivot pin, and also is provided with the roller 5 that is resisted against outer rail inner chamber 12 sidewalls by pivot pin on interior rail.

In the present embodiment, above-mentioned rollers is one group with two rollers 5 that are set up in parallel, and roller set has two, each roller set is adjacent to cooresponding stay bearing plate and bearing, each roller of same roller set then leans with the respective side sidewall of outer rail inner chamber 12, the smooth and easy slip of rail in such structure more helps.

L bracket 7 and extension spring 8 in locking plate 6, middle part in above-mentioned lockable mechanism includes and vertically is inserted in the rail cavity is hinged on the rail outer wall, wherein the bottom of locking plate is exposed to interior rail and has registration mast 61, window 25 in the top correspondence of locking plate on the rail upper surface, the side of locking plate has joint pin 62, pilot hole 26 in this joint pin is stretched in outward on the trackside wall, and stretch in the slotted hole 71 on L bracket one support arm; Above-mentioned extension spring 8 one ends are connected in another support arm of this L bracket, and the extension spring other end is connected on the interior rail, so that support has the trend that locking plate moves down that drives all the time.And the registration mast 61 of corresponding above-mentioned locking plate then has longitudinally spaced knock hole 14 at the outer rail intracavity bottom.

During use, interior rail is connected mutually with seat bottom, and outer rail is fixed in vehicle body.When the needs sliding seat, as shown in Figure 2, press section 72 on another support arm of L support under external force, L bracket is clockwise rotated around its middle part, and move on the drive locking plate, finally make the registration mast of locking plate bottom break away from knock hole on the outer rail, and make slide rail be in released state, at this moment, interior rail slides before and after can doing with respect to outer rail by means of bearing.When seat arrives correct position, cancel the external force effect, at this moment, L bracket is replied under the effect of extension spring, drives the locking lock and moves down, and the registration mast of locking plate bottom is inserted in the cooresponding knock hole again, and makes slide rail be in lockup state, sees also Fig. 1.

In above-mentioned slipping,, thereby prevented that well interior rail from rocking with respect to the left and right of outer rail because each roller rolls along the outer rail intracavity sidewall in two roller set.Utilize simultaneously on two bearings, the interior rail arc convex respectively with the cooperating of outer rail bottom, roof, can eliminate the phenomenon that teetertotters in the slipping preferably, thereby make this slide rail in use more steady, smooth and easy, and can improve traveling comfort and the safety of using.

Claims

1. automotive seat long slide type rail system, comprise outer rail, interior rail and lockable mechanism, wherein the outer rail upper surface has the vertical slotted hole that connects with the outer rail inner chamber, the lower edge of rail is stretched in the inner chamber of outer rail in described by vertical slotted hole, and on interior rail, be provided with the bearing that rolls in described outer rail intracavity bottom, it is characterized in that: also be provided with the roller that is resisted against described outer rail intracavity sidewall on the rail in described.

2. automotive seat long slide type rail system according to claim 1, it is characterized in that: the rail lower edge has respectively the crotch limit that the inner chamber roof to described vertical slotted hole both sides extends in described, and has the arc convex that leans with described inner chamber roof on the edge on this crotch limit.

3. automotive seat long slide type rail system according to claim 1 and 2 is characterized in that: described roller is one group with two rollers that are set up in parallel, and the respective side sidewall of each roller of same roller set and outer rail inner chamber leans.

4. automotive seat long slide type rail system according to claim 3 is characterized in that: described roller set has a plurality of.