JPS59213531A - Seat slide - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a seat slide for adjusting the forward and backward adjustment of a motor vehicle seat, and to a seat slide for adjusting the forward and backward adjustment of a motor vehicle seat, and for relatively sliding dies, one of which fits into the other. The present invention relates to a seat slide of the type having inner and outer elongated elements arranged as such.

[Technical background of the invention and its problems]

A pair of slides is provided for each seat to avoid twisting or other distortion of the seat frame, and a releasable locking means is provided on each seat slide or on one of the pair of seat slides to release the seat frame. 'oJ
The locking means has a release position allowing relative sliding to effect adjustment of the position of the vehicle seat in use;
It is movable between locking positions in which such relative sliding is prevented. The above types of sheet slides are hereinafter referred to as specific types of sheet slides.

In one form of certain types of seat slides, roller bearings are carried by the inner member 9 for engagement with the planar bearing surface of the outer member, and the roller bearings provide relative sliding movement between the slide elements. It makes it easy to do. Such roller bearing arrangements have the disadvantage of uneven sliding action, or rattling of the bearings, if all components of the slide are not made to very close manufacturing tolerances.

Therefore, proposals have been made to utilize plastic bearing surfaces;
In one such proposal, a plastic liner was molded onto the inner slide element.

Although this arrangement avoided the problems of rattling and uneven sliding action, the cost of providing the molded plastic liner was significantly greater than the cost of the roller bearings.

[Purpose of the invention]

It is an object of the present invention to provide a particular kind of improved form of a geat-slice, P, which makes it possible to avoid the aforementioned problems without incurring any cost penalty.

[Summary of the invention]

In the present invention, the outer sliding element has an inwardly directed groove for receiving seven outwardly extending flange portions of the inner sliding element, a plastic liner is fitted into each of these grooved portions, and each plastic liner itself comprises: A specific type of seat slide is provided having a groove in which each of the seven langes is a sliding fit.

The inner sliding element preferably has a silk hat-shaped cross-section and carries locking means which are releasable when provided intermediate their ends, the locking means being arranged in one of the outer sliding elements. It takes the form of a spring-loaded pawl arranged to selectively engage a cutout formed in one wall of the groove portion. The pawl is preferably pivotally mounted to a bracket attached to the inner sliding element and can have a two-tooth structure, whereby it engages in coupling engagement with two of the cutouts in the wall of said groove. be exposed.

In the case of a slide and seat combination in which each pair of slides has a releasable locking means, it is preferred that the operating handle is attached to the locking pawl of one slide;
In addition, the horizontal shaft mechanism interconnects the pawls of the two slides, thereby moving the pawls between their locked and released positions.
fc movement in unison, the pawls being individually spring-loaded in their locking position.

[Embodiments of the invention]

The present invention will now be described with reference to embodiments shown in the accompanying drawings, which show slide structures providing one-sided locking and two-sided locking.

The seat slide shown in the drawings is made of conventional components and the reference numerals attached to the parts of the embodiment of FIGS. 1 and 2 correspond to the corresponding parts of the embodiment of FIGS. 3 and 4. It is used for.

The structure shown in Figures 1 and 2 consists of two slides 10 and 1.
1, the slide 10 acts as a scraping unit, and the slide 11 is provided with an operating handle 12, the operating handle having a handgrip 13 at its free end (FIG. 2). ) Seat cushion 14
It is located just below the leading edge of the machine so that it can be operated by hand. The hand grip portion 13 is normally located at the position shown in solid lines in FIG. The locking action can be released and the position of the vehicle seat can be adjusted fore and aft.

Each slide io, 11 has an inner slide element I5 and an outer slide element 16, the cross-sectional shape of which is shown in FIG. Each inner sliding element 15 is of cedar in cross section and is positioned in use so that it is disposed horizontally with the top 17 of the cross section facing upwardly towards the seat cushion 14. A pair of circular holes 18 are provided at the top 1
7 and slide the seat cushion 14
The fixing port 19 is inserted into the receptacle in order to attach it to the holder. Each outer sliding element 16 has a proximal addition;
This base is positioned horizontally downwardly towards the floor of the vehicle during use.

A pair of circular holes 21 are formed in the base of the outer slide for receiving fixation ports 22 for attaching the slide to the floor of the vehicle.

Each outer slide element 16 has an upwardly bent lug thereby providing a pair of inwardly directed grooves. A plastic liner is fitted into each of these grooves, the cross-sectional shape of the liner being identical to that shown in FIG. The plastic liner is formed as a molding and has an end structure that overlaps the end of the outer sliding element 16 to ensure that the liner is retained within the groove. The plastic material in which the liner path is molded is one that ensures that the frictional loads are as low as possible and that the relative movement of the sliding elements is kept within defined limits. The plastic material may be polyacetal impregnated with a suitable lubricant, such as molybdenum disulfide. The liner 123 is configured to receive the flange of the silk hat portion of the inner slide 3' 15, with each liner n being shaped so that the free edge of the flange cannot come into contact with the base of the slot. It has a slot of a certain depth. In this way, it is ensured that the inner sliding element 15 slides effectively within the outer sliding element.

One of the side walls of each outer sliding element 16 is formed with equally spaced cutouts 5, which are shown as open slots at the side wall edge, but which extend at a distance from the side wall edge. It can also be in the form of a hole. Two slots are formed in the inner sliding element 16 approximately at its center for receiving the arms of the mounting bracket 26, the ends of the arms being inserted into the zipper of the inner sliding element 15.
located under and welded to the top of the cut section.

The dimensions of the arm and the slot are such that the arm provides a tight sliding fit in the slot so that a mechanical mating engagement in addition to a welded connection is obtained between the bracket valley and the sliding element 15. Bracket 26 is stepped insert 27
The stepped spigot has a relatively large diameter section to which the locking pawl is pivotally mounted. The locking pawl has two tooth structures 29 that enter the adjacent recess δ and perform a locking action, and the pawl is acted upon by a spring 30, which
Supplementary note) The pawl 28 is useful for biasing it into its locking position;
Moreover, the bracket has a reaction leg that leans against the strut horn ξ-31.

The two sheet slides 10 and 11 shown in Figures 1 and 2,
They are interconnected by a transverse shaft 32 having a tube that fits over the relatively small diameter portion of the spigot n.

A connecting element 33 is provided at each end of the tube, and the two connecting elements 33 are connected to cooperating structures of the locking pawls 4, so that the pawls 4 are subjected to the respective spring loads. , or rotate in harmony against the action of the spring Shu. Rotation of the pawl is effected by an operating handle 12 attached to the pawl field of the slide 11, which includes a sleeve that fits over the respective pawl portion and is then retracted to join therewith. There is a tone. Since the two slides 10 and 11 are interconnected by a transverse shaft 32, only one operating handle 12 is of course necessary.

The head of the pole 22 used to attach each outer sliding element 16 to the vehicle floor acts as a stop and cooperates with the tab. Tab 35 is formed by making a cutout in one of the associated inner slide element 1507 flange and then bending the tab inwardly. In operation, the inner sliding element 15 of each slide
It slides outwardly between two limit positions: a first limit position, where one of the tabs 35 abuts one of the bolts 22, and a second limit position, where the other tab 35 abuts the other port 22. Can move freely within element 16.

In manufacturing the slide, slide elements 15 and 16 are manufactured as metal moldings using suitable multi-stage tooling, and inner slide element 15 is given a suitable surface treatment to form the seven flange of inner slide element L5. The sliding friction coefficient between plastic liner B can be reduced. Attach the locking tab 26 to the inner slide element 15, and then attach the locking pawl 30 to the inner slide element 15.
Attach to. For slide 11, handle 12
Attach the lock to the stopper. After inserting the molded plastic liner 23 into the inward groove of the outer sliding element L6, the inner and outer sliding elements 15 and 16 are assembled together.

When supplied to a vehicle manufacturer, the two slides 10 and 11 and the transverse shaft 32 are delivered as separate half-units to reduce packaging costs and facilitate mounting of the slides within the vehicle. The inner sliding element 15 is attached to the seat frame 14
, the transverse shaft 32 is connected to the locking pawl, and the outer sliding element 16 is then attached to the floor of the vehicle during installation of the seat to the vehicle.

The form of the seat slide arrangement shown in Figures 1 and 2 is as follows:
Intended for use with sheets with a tubular metal frame, its double locking action ensures that distortion of the frame under load is prevented. The particular arrangement shown in FIGS. 3 and 4, in which the two slides are not interconnected, allows the press to be pressed in such a way that unilateral locking action is allowed due to the increased resistance of the frame to strain. Planned for use on sheets with metal frames. While the construction of slide 11 is as previously described with respect to the embodiment of FIGS. 1 and 2, slide IOA differs in that it is not integrated with bracket 26 and associated locking means.

That is, the slide IOA includes the inner slide element 15, the outer slide element 16, and the inner slide element 15.
It consists of two molded plastic liner wings that fit into inwardly directed grooves in the outer slide element 16 in sliding engagement with the flange.

In both of the embodiments described above, the locking pawl(s) are spring-loaded into locking engagement with the cutout 5;
The sliding elements are locked against relative sliding movement. In order to release the locking action, the driver or the front passenger must lower their hands and grasp the handle 12i.
Move 2 upwards.

This releases the locking pawl and allows the seat to be slid rearward or forward to an alternate adjustment position.

An important advantage of using a plastic liner 23 is that it not only ensures a quieter and smoother sliding action, but also that an overall reduction in the height of the seat slide can be obtained. The use of a locking system in which the movable locking element is attached to the inner sliding element and engages the wall of the outer sliding element assists in obtaining this overall height reduction.

Each molded plastic liner n has a constant cross section throughout its length. However, the indicated cross-sectional shape is present only at the ends of each liner, and perhaps in the center of each liner, contacting only 50% of the surface of each liner that is engaged by the seven langes of the inner sliding element 15. It can be removed appropriately to reduce the surface area.

[Brief explanation of drawings]

Fig. 1 is a plan view of the seat slide structure with locking capabilities on both sides, Fig. 2 is a sectional view taken along line A-A in Fig. 1, showing how the slide is attached to a vehicle; FIG. 4 is a partially cutaway plan view showing a seat slide structure having one-sided locking capability, and FIG. 4 is a sectional view taken along line B--B in FIG. 3. to, 11...Slide, 15...Outer slide element, 16...Inner slide element,...Plastic liner O

Claims (1)

[Claims] 1. The outer slide element has an inwardly directed groove portion that receives the outwardly extending seven flange portions of the inner slide element, and a plastic liner is fitted into each of these groove portions, and a plastic liner is fitted into each of these groove portions. Certain types of seat slides are characterized in that the liner itself has grooves into which each flange fits. 2. Seat slide according to claim 1, wherein the inner slide element has a silk/seat-shaped cross section. 3. The inner sliding element carries releasable locking means intermediate its ends, the locking means being in the form of a spring-loaded pawl, which pawl engages one of the outer sliding elements. 3. A seat slide according to claim 1, wherein the seat slide is arranged to selectively engage a cutout formed in the wall of one of the groove portions. 4. The pawl is pivotally mounted on a bracket attached to the inner sliding element and has a two-tooth structure so as to be in interlocking engagement with the two cutouts in the wall of the groove; A seat slide according to claim 3. 5. Seat slide according to any one of claims 1 to 4, wherein the plastic material is impregnated with a lubricant. 6. Any one of claims 1 to 5, wherein the depth of the groove of each liner is such that the free edge of each flange does not contact the bottom of the groove. Seat slide as described in. 7. The surface of the liner directed toward the inner surface of the groove portion is removed at locations along its length to reduce the area of contact with the inner surface of the groove portion. The sheet slide according to any one of paragraph 6.