JP2001219768A - Slide lever mounting structure for seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the number of parts and connect a slide lever with a lock plate securely. SOLUTION: The lock plate 4 has a locking plate 44 which is turnably journaled around a shaft 45 provided between side walls of an upper channel 26, is externally fitted in lock teeth 25 provided at an equal pitch in a predetermined scope in the longitudinal direction of a lower channel 21, and is formed in a rear end part and an arrowhead producing piece 43 of a locking structure which is fitted in an end part of the slide lever 7 through a cylindrical spring 6 and is extended forward from a front end part. The cylindrical spring 6 has a side part cutting and raising piece 62 pressing an outer face of the arrowhead protruding piece 43 by an energizing force due to elastic deformation and a cutting and raising locking piece 63 and a cutting and raising pressing piece pressing an inner face of the slide layer 7 by an energizing force due to elastic deformation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slide lever structure configured to lock and unlock the forward and backward movement of a seat by operating a slide lever.

[0002]

2. Description of the Related Art Conventionally, there is known a sheet sliding apparatus as described in Japanese Patent Application Laid-Open No. 9-48268. The slide device includes a lower channel fixed to the floor, an upper channel for seat support that is guided back and forth by the lower channel, and a slide lever that operates locking and unlocking of the forward / backward movement of the upper channel. A lock plate that rotates about an axis provided on the upper channel by operating the slide lever and engages and disengages a locking tooth formed on the lower channel is provided.

Normally, the forward and backward movement of the upper channel is regulated by the engagement of the lock plate with the locking teeth by the urging force of the urging means, while the slide plate is operated to move the lock plate in a predetermined direction. In this state, the upper channel can be moved back and forth, so that any front-back position can be selected, and then the slide lever is returned to its original position to lock it again in this position. The plate will engage the locking teeth to lock the selected seat position.

[0004]

In the above-described conventional slide apparatus, a lock plate provided between the two channels and a slide for operating the lock plate to engage and disengage the locking teeth are provided. The levers are connected to each other outside of the channel via mounting flanges projecting laterally from the lock plate, so that the lock plate has a complicated shape and both are connected at the offset position of the lock plate Because the connection structure itself is complicated, the component cost increases,
There are many points to be improved, such as the occurrence of rattling and the necessity of interposing urging means in various places to suppress the rattling.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described circumstances, and it is possible to reduce the number of parts and to reliably connect a slide lever and a lock plate. It is an object of the present invention to provide a seat slide lever mounting structure that can effectively suppress rattling of a portion and that can easily be mounted on a lock plate of a slide lever.

[0006]

According to the first aspect of the present invention,
The lower channel and the guide to this lower channel,
A lock plate is interposed between the seat and the upper channel integrated with the seat, and the locking and unlocking between the two channels by the lock plate is performed by operating the pipe-shaped slide lever connected to the lock plate up and down. A slide lever mounting structure for the seat, wherein the lock plate has a protrusion formed at a front end thereof, and is interposed between the protrusion and the slide lever to be prevented from being removed in the axial direction by the protrusion. A tubular spring, wherein the tubular spring has an inwardly-facing piece for pressing the outer surface of the protruding piece and an outwardly-facing piece for pushing the inner surface of the slide lever. It is a feature.

According to the present invention, the slide lever is connected to the lock plate by being further fitted from outside to the cylindrical spring fitted to the projecting piece, and in a state where both are connected to each other. Since the protrusion is inwardly raised and raised by the cylindrical spring and the outer surface is pressed by the protrusion, and the slide lever is pressed by the outwardly raised and raised piece of the cylindrical spring, the inner peripheral surface is pressed. In the state of being connected to the lock plate, the rattling between the slide lever and the protruding piece can be reliably suppressed by the tensile force in the opposite direction by the cut and raised pieces.

Further, when the slide lever is mounted on the lock plate, a dimensional error of one or both of the slide lever and the lock lever, a precision error of the cushion frame when mounting the slider on the cushion frame, or a dimensional variation of the vehicle. Since the overall assembly error of the slider including the above is absorbed by the cylindrical spring having the outer diameter smaller than the inner diameter of the slide lever, even if these errors exist, the left and right sliders are unlocked. It is possible to shorten the time required for correction when a problem occurs.

As described above, by interposing the cylindrical spring having the cut-and-raised piece facing inward and outward between the slide lever and the protruding piece, the number of parts is reduced as compared with the related art, and there is no play. Both can be connected, and the hindrance of the smooth assembling work due to the dimensional variation of the parts is eliminated, which contributes to the reduction of the parts cost and the assembling cost and the improvement of the assembling efficiency.

According to a second aspect of the present invention, in the first aspect of the present invention, the tubular spring is provided at a distal end thereof and includes a guide piece for guiding the slide lever to fit outside the tubular spring. It is characterized by having.

According to the present invention, the slide lever is guided by the guide piece, so that the slide lever is easily fitted on the cylindrical spring.

According to a third aspect of the present invention, in the second aspect of the present invention, the width of the guiding piece, which is protruded from the distal end edge of the cylindrical spring and is turned back, is smaller than the diameter of the cylindrical spring. It is formed by a V-shaped guiding protruding piece, and the V-shaped guiding protruding piece is shaped so that its tip is located radially outward from the outer peripheral surface of the cylindrical spring. It is.

According to the present invention, by moving the slide lever in the direction of the cylindrical spring with the end surface of the slide lever facing the end surface of the cylindrical spring,
Even if there is a misalignment between the two, as long as the slide lever fits into the V-shaped guiding protrusion, the slide lever is pushed in the direction of the cylindrical spring, and the slide lever is then V-shaped. The guide lever is guided by the protrusion while being elastically deformed and fitted into the cylindrical spring, so that the slide lever can be easily mounted on the cylindrical spring.

According to a fourth aspect of the present invention, in the second aspect of the present invention, the guide piece is provided at an equal pitch in a circumferential direction from a leading edge of the cylindrical spring and has an acute angle inward in a radial direction. Characterized in that it is formed by a plurality of guide pieces bent in the above manner.

According to the present invention, by moving the slide lever in the direction of the cylindrical spring with the end surface of the slide lever facing the end surface of the cylindrical spring,
Even if there is a misalignment between the two, as long as the slide lever hits one of the guide pieces, the slide lever is alternately guided to this guide piece and the other guide pieces thereafter. While being guided by the small pieces, they are fitted into the cylindrical spring, so that the slide lever can be easily mounted on the cylindrical spring.

[0016]

FIG. 1 is a perspective view showing an embodiment of a seat to which a slide lever structure of the present invention is applied. As shown in this figure, the seat 1 is a seat bottom 1
1, a seat back 12 provided to be tiltable to the rear end of the seat bottom 11 and capable of maintaining an arbitrary tilting position, and a pair of width direction supporting the seat bottom 11 to be able to move back and forth. It consists of a slider 2.

The slider 2 comprises a lower channel 21 fixed to the floor F, and an upper channel 26 which moves back and forth while being guided by the lower channel 21. The lower channel 21 is formed in a concave shape when viewed from the front, and has a bottom plate 22 that is long in the front-rear direction, a pair of width-direction side plates 23 erected from both sides of the bottom plate 22, and each side plate 2.
3 includes a pair of top plates 24 in the width direction protruding by a predetermined dimension in the direction facing each other, and a hanging plate 25 suspended downward by a predetermined dimension from the opposing edge of each top board 24. .

The upper channel 26 is provided with an inverted U-shaped member 27 having an inverted U-shape when viewed from the front, and protrudes upward from the lower edge of the inverted U-shaped member 27 in opposite directions. And a pair of wing members 28 in the width direction. The width of the inverted U-shaped member 27 is set slightly smaller than the gap between the hanging plates 25 of the lower channel 21, and the length is set to be shorter than the length of the lower channel 21 by a predetermined length. The lower channel 21 can be moved back and forth within the range of the length of the lower channel 21 by slidingly fitting between the hanging plates 25.

The dimensions and shape of the pair of wing members 28 are set so as to fit between the corresponding hanging plate 25 and the side plate 23. Then, the respective wing members 28 are suspended by a side plate 23 via a retainer 29 having a rotatable steel ball exposed to the outside.
The upper channel 26 is mounted on the lower channel 21 in a state where the upper channel 26 can smoothly move back and forth by being fitted between the lower channel 21 and the side plate 23.

Then, both ends of the slide lever 7 formed by bending the pipe into a U-shape are moved from the front end of the upper channel 26 to the upper channel 2.
When the slide lever 7 is inserted into the lock plate 6 and is connected to a lock plate 4 described later, the lock of the upper channel 26 with respect to the lower channel 21 is released by an operation of lifting the slide lever 7.

The slide lever structure according to the present invention has a structure in which a part of the upper channel
The other part is formed in the lower channel 21 while being formed in the character member 27. FIG. 2 is an exploded perspective view showing one embodiment of a slide lever structure,
FIG. 3 is a partially cutaway perspective view of the assembly. FIGS. 4A and 4B are views of a lock plate which is a component of the slide lever structure, wherein FIG. 4A is a side view and FIG. 4B is a plan view. FIG. 4 also shows a state in which the slide lever 7 is attached to the arrowhead projection 43 via the cylindrical spring 6.

As shown in FIGS. 2 and 3, the slide lever structure includes an inverted U-shaped member 27 of the upper channel 26.
A lock plate 4 mounted inside the lock plate 4, a lock spring 5 mounted in the lock plate 4, and a cylindrical spring 6 mounted outside the lock plate 4
And a pipe-shaped slide lever 7 that is connected to the lock plate 4 by fitting its end to the cylindrical spring 6.

The lock plate 4 is formed by pressing a metal flat plate and bending both sides thereof at a center line extending in the longitudinal direction.
Inverted U-shaped plate 41 of a predetermined length having an arc shape in a front view
A pair of width plates 42 extending in a width direction from the inverted U-shaped plate 41 toward the front (to the left in FIG. 2);
Arrowhead projection 4 formed by laminating the front ends of
3 and a pair of widthwise locking plates 44 projecting from the lower end edge of the rear part of the inverted U-shaped plate 41 in opposite directions.

As shown in FIG. 4A, the horizontal plate 42 extends downward from the side edge of the front portion from a substantially central position in the longitudinal direction of the inverted U-shaped plate 41, and 41 further extends forward from the end. A swelling piece 42a swelling upward is provided at the front end of each of the horizontal plates 42. Shaft holes 42b facing each other in the width direction are formed in each bulging piece 42a, and shaft holes 27a corresponding to each shaft hole 42b are formed in a pair of side walls of the inverted U-shaped member 27. By inserting the shaft 45 into the shaft holes 42b and 27a and caulking, the lock plate 4 is mounted in the upper channel 26 so as to be rotatable around the shaft 45.

On one side of the swelling piece 42a, a stopper piece 42c protruding forward is provided, and the stopper piece 42c abuts on the ceiling of the inverted U-shaped member 27 so that a lock plate is formed. Further rotation of the shaft 4 around the shaft 45 is prevented.

As shown in FIG. 4B, the arrowhead projecting pieces 43 are formed by bending portions of the horizontal plates 42 extending forward from the front ends thereof so as to abut against each other. Have been. An arrowhead portion 43a is formed at the tip of the arrowhead projecting piece 43, and the arrowhead portion 43a is formed.
An arrow pattern portion 43b formed by notching upper and lower edges rearward from the base end portion is provided.

The locking plate 44 is formed in a rectangular shape in plan view, and the dimension between the right and left opposite edges is set slightly smaller than the inner dimension between the side plates 23 of the lower channel 21. On the other hand, the side wall of the inverted U-shaped member 27 and the wing member 28 are notched in a portion corresponding to the locking plate 44, and a plate fitting groove 27b for fitting the locking plate 44 is recessed in this portion, whereby With the lock plate 4 mounted on the upper channel 26, the locking plate 44 projects outward from the plate fitting groove 27b.

Then, each hanging plate 2 of the lower channel 21
5 has a plurality of lock teeth 25a formed on the lower edge thereof at a constant pitch over a predetermined range in the longitudinal direction, while the locking plate 44 has a lock hole 44a corresponding to the lock tooth 25a. And the lock plate 4 is
By turning counterclockwise about 5, the lock hole 44a fits over the lock tooth 25a, thereby locking the forward and backward movement of the upper channel 26,
The lock of the lock plate 4 is released when the lock hole 44a is disengaged from the lock teeth 25a by the clockwise rotation of the lock plate 4 around the shaft 45.

The lock spring 5 is formed by bending a leaf spring having a length substantially the same as that of the horizontal plate 42 and a width slightly smaller than an inner dimension between the horizontal plates 42 into a predetermined shape. It is formed by doing. Figure 5 below
The side view shape of the lock spring 5 will be described based on FIG.

FIG. 5 is an explanatory side view showing a state in which the lock spring 5 is mounted on the lock plate 4. As shown in this figure, the lock spring 5 has a front spring 51 which rises forward (leftward in FIG. 5) at a turning point P, and a rear spring which rises rearward from the turning point P. It comprises a spring 52.

At a position adjacent to the bending point P of the spring 51, there is provided a locking recess 53 formed by bulging the portion upward. The fitting state of the lock spring 5 to the lock plate 4 is stabilized by being fitted into the mounted shaft 45.

The lock spring 5 before mounting (FIG. 5)
(Indicated by a two-dot chain line) is set so that it is smaller than the bending angle β after mounting. Therefore,
When the lock spring 5 is mounted on the lock plate 4 attached to the upper channel 26, the lock spring 4 is elastically deformed in a direction in which the bending angle α increases, whereby the lock spring 4 is attached to the lock plate 4 around the shaft 45. A biasing force for biasing in the counterclockwise direction is formed.

The lock spring 5 is inclined obliquely from the lower rear of the lock plate 4 (the position shown by the two-dot chain line in FIG. 5) toward the front (left side in FIG. 5) as shown by the arrow. By moving it upward and inserting it between the horizontal plate 42 from the lower opening of the lock plate 4 and pressing it diagonally forward, the front end part goes up through the upper opening of the lock plate 4 and overshoots the shaft 45, and The channel 26 comes into contact with the ceiling.

In this state, the lock spring 5 is further pressed obliquely upward toward the front, so that the front end of the lock spring 5 contacts the ceiling of the upper channel 26 and the rear end of the lock plate 4 Reverse U
While being in contact with the ceiling of the character board 41, it is mounted in the lock plate 4 while being elastically deformed so that the bending angle α gradually increases. When the locking concave portion 53 faces the shaft 45, the lock spring 5
Stop pressing against. Then, the lock spring 5 that is elastically deformed attempts to return to the original state by the elastic force, and the locking concave portion 53 engages with the shaft 45, whereby the mounting of the lock spring 5 to the lock plate 4 is completed.

When the lock spring 5 is mounted in the lock plate 4, the bending angle β is larger than the initial bending angle α. To press the U-shaped plate 41 upward, the lock plate 4 is
In this state, the lock hole 44a of the locking plate 44 is normally fitted to the lock teeth 25a of the lower channel 21 so that the forward and backward movement of the upper channel 26 is restricted. I have.

In this state, when the lock plate 4 is rotated clockwise around the shaft 45 against the urging force of the lock spring 5, the lock teeth 25 of the locking plate 44 are rotated.
The engagement with a is released, so that the upper channel 26 can be moved back and forth.

The cylindrical spring 6 is mounted on the arrowhead portion 43b of the arrowhead projection 43 and is interposed between the slide lever 7 and the arrowhead projection 43.
, The rattling of the slide lever 7 against the lock plate 4 is prevented. Hereinafter, the tubular spring 6 will be described with reference to FIG.

FIGS. 6A and 6B are views showing a first embodiment of the cylindrical spring 6, wherein FIG. 6A is a front view, FIG.
(C) is a bottom view. As shown in FIG. 6, the tubular spring 6 is formed by bending a plate-shaped spring material into a tubular shape such that the side edges face each other at the top.

The cylindrical spring 6 has a spring body 61 having a cylindrical shape, and a pair of side cut and raised pieces 62 in the width direction formed on both sides of the spring body 61 so as to extend inward. And a pair of bottom cut-and-raised pieces (cut-and-raised locking pieces 63 and cut-and-raised press pieces 64) that are cut and raised outward in a line in the front-rear direction at the bottom of the spring body 61. It is configured.

The spring main body 61 is formed by forming a rectangular plate spring material having a predetermined thickness into a cylindrical shape, and has a clearance 6 extending on the peripheral surface over the entire length in the longitudinal direction.
1a is provided. The diameter of the spring main body 61 is adjusted by changing the size of the gap 61a. The spring body 61 is
The inner diameter dimension is set slightly smaller than the diagonal dimension of the arrowhead portion 43b of the lock plate 4 in a front view, and the outer dimension is set slightly smaller than the inner diameter dimension of the slide lever 7, and the arrowhead portion 43a is set. 4 (FIG. 4), the diameter is slightly increased by being press-fitted into the arrow pattern portion 43b, so that the slide lever 7 can be fitted to the spring body 61 in a sliding contact state.

Each of the side cut and raised pieces 62 is shown in FIG.
As shown by a dotted line, the front (left side in FIG. 6) side is formed by being bent in a direction facing each other. The clearance between the distal ends of these tubular springs 6 is set smaller than the thickness in the width direction of the arrowhead portion 43b, and the cylindrical spring 6 is fitted to the arrowhead portion 43b ((b) in FIG. 4). The arrow pattern 43b presses and clamps the pair of side cut and raised pieces 62, thereby preventing rattling in the left-right direction between the cylindrical spring 6 and the arrow pattern 43b. It is configured to be in a state of being prevented from rotating with respect to the arrow pattern 43b.

The pair of bottom cut-and-raised pieces (cut-and-raised locking pieces 6)
3 and both the cut-and-raised pressing pieces 64) are formed by cutting and raising the rear part (right side of FIG. 6) outward as shown in FIG. On the other hand, the slide lever 7
As shown in FIG. 4A, a retaining hole 71 is formed at a position corresponding to the cut-and-raised locking piece 63. Therefore, the slide lever 7 is cut and raised by fitting the slide lever 7 to the cylindrical spring 6 so that the rear edge of the locking piece 63 interferes with the rear edge of the retaining hole 71 to prevent the slide lever 7 from coming off. Since the cut-and-raised pressing piece 64 is elastically deformed toward the inside of the spring main body 61, the inner peripheral surface is pressed by the elastic force, thereby preventing the slide lever 7 from rattling against the cylindrical spring 6. It has become so.

When the slide lever 7 is mounted on the lock plate 4 via the cylindrical spring 6 as shown in FIG. In order to press the surface, the pressing force causes the spring body 61 to be inclined with respect to the arrowhead portion 43b of the arrowhead projecting piece 43, so that the pressing piece 64 and the lower front edge of the spring body 61 are moved by the slide lever. 7 and the upper rear edge of the spring main body 61 abuts on the upper inner peripheral surface of the slide lever 7. Since the surface is pressed at the diagonal edge portions of the front and rear of the spring body 61, rattling of the slide lever 7 in the vertical direction is suppressed.

In FIG. 4, for convenience of illustration, the outer peripheral surface of the cylindrical spring 6 and the inner peripheral surface of the slide lever 7 are shown in close contact with each other. 6 is slightly larger than the outer diameter dimension, and this dimensional difference is absorbed by the cutting and pressing piece 64. Accordingly, the dimensional variation of the slide lever 7 or the lock plate 4 during the assembling operation is absorbed by this dimensional difference, and as a result, the lock plate 4 of the slide lever 7 is locked.
The operation of assembling the device can be easily performed.

In the above embodiment, the lower channel 21 has a concave shape in cross section, and the upper channel 2
6 has an inverted U-shape corresponding to this, but in the present invention, the lower channel 21 has a concave shape in cross-sectional view,
It is not limited to setting the shape so that the upper channel 26 has an inverted U-shape. The inverted U-shaped one is used as the lower channel, and the concave one is used as the upper channel. You may do so.

FIG. 7 is a view showing a second embodiment of the cylindrical spring 6a, (a) is a perspective view, (b) is a front view,
(C) is a side view, and (d) is a cross-sectional view in a side view. 7C is a cross-sectional view of the slide lever 7 before being mounted on the cylindrical spring 6a, and FIG. 7D is a sectional view of the slide lever 7 after being mounted on the cylindrical spring 6a. Also shown.

In this embodiment, as shown in FIG. 7A, the cylindrical spring 6a is formed in the same manner as in the previous embodiment, and has a side cut-and-raised piece 62, a cut-and-raised lock. Piece 63
And a spring body 61 having a cut-and-raised pressing piece 64
In addition, a V-shaped guiding projection 65 having a function as a guiding piece for guiding the slide lever 7 to fit on the cylindrical spring 6 is provided.
Is provided.

The V-shaped guiding projection 65 is attached to the spring body 6.
The front edge portion 1 is formed so as to protrude forward from a portion facing the upper gap portion 61a. The V-shaped guiding protrusion 65 is configured such that the width thereof is set smaller than the diameter of the spring main body 61 and the spring main body 6
1 is protruded forward from the front end edge, and a substantially middle position thereof is formed by being folded back. The front end of the V-shaped guiding protrusion 65 is tapered and
The rear end portion facing rearward (which corresponds to the front end portion when the V-shaped guiding protrusion 65 is viewed as a whole) is formed so as to be located radially outward from the outer peripheral surface of the spring main body 61. ing.

From the front edge of the spring main body 61, a pair of holding small pieces 66 in the width direction is protrudingly provided. The distance between the front ends of the holding small pieces 66 is the arrowhead projection 4.
The gap is set so as to be shorter than the thickness dimension of No. 3, whereby a portion of the arrowhead projection 43 projecting outside from the spring body 61 is a pair in a state where the cylindrical spring 6 is fitted on the arrowhead projection 43. The holding member 66 is pressed and held by the holding piece 66, whereby the connection between the cylindrical spring 6 a and the lock plate 4 is stabilized.

On the other hand, in this embodiment, the lock plate 4 does not have the arrowhead portion 43a having a barbed at its front end, and instead of being simply tapered,
Engagement projections 43c corresponding to the side cut and raised pieces 62 protrude from both side surfaces of the arrowhead portion 43b, and the cylindrical spring 6a is formed.
In the state in which it is externally fitted to the arrowhead projection 43, the tip of the side piece 62 abuts on the locking projection 43c so that the arrowhead projection 43 is prevented from falling off.

According to the cylindrical spring 6a of the second embodiment, the slide lever 7 is held in a state where the end face of the slide lever 7 faces the end face of the cylindrical spring 6a as shown in FIG. By moving in the direction of the cylindrical spring 6a, even if there is a misalignment between the slide lever 7 and the cylindrical spring 6a, the slide lever 7
As long as it fits into the V-shaped guide protrusion 65, the slide lever 7 is pressed in the direction of the cylindrical spring 6a, and the slide lever 7 deforms the V-shaped guide protrusion 65 elastically. Since it is guided by the V-shaped guiding protrusion 65 and fitted into the cylindrical spring 6a, the workability of mounting the slide lever 7 to the cylindrical spring 6a is improved.

FIG. 8 is a view showing a third embodiment of the cylindrical spring 6b, (a) is a perspective view, (b) is a front view,
(C) is a side view, and (d) is a cross-sectional view in a side view. 7C is a cross-sectional view of the slide lever 7 before being mounted on the cylindrical spring 6a, and FIG. 7D is a sectional view of the slide lever 7 after being mounted on the cylindrical spring 6a. Also shown.

The cylindrical spring 6b of the third embodiment has a plurality (three in the example of FIG. 8) of guide pieces 67 protruding forward at the front edge of the spring main body 61 at the same pitch in the circumferential direction. It is provided with. The guide piece 67 has a truncated conical shape, and has a bottom portion integrally coupled to a front end portion of the spring body 61 with respect to a direction in which the spring body 61 extends inward in the radial direction as a whole. It is bent at an acute angle so as to protrude from the spring body 61 to the outside.

In this embodiment, the spring body 61 is provided with a cut-and-raised locking piece 63 and a cut-and-raised pressing piece 64 similar to those of the previous embodiment. The side cut-and-raised pieces 62 as provided in the springs 6, 6a are not provided. Instead, a pair of angular recesses 68 opposing each other are provided on opposing edges extending in the longitudinal direction with the gap 61a interposed therebetween. The cylindrical spring 6b has these three angular recesses 6
As shown in FIG. 8 (b), a three-leaf pattern is formed by the front view of FIG.

On the other hand, the lock plate 4 is not provided with the arrowhead 43a as provided in the first embodiment. Instead, on the upper edge of the arrowhead 43b,
A pair of rectangular locking projections 43d are provided in a side view corresponding to the pair of angular recesses 68 so as to protrude. Then, the spring body 61 spreads right and left with the gap 61a as a boundary by fitting the arrowhead projection 43 into the cylindrical spring 6b.
The elastically deformed spring main body 61 is restored to its original shape in a state where
b is prevented from falling off.

In this embodiment, two locking projections 43d are provided at the front and rear corresponding to the front and rear angular recesses 68, but the number is not limited to two. Any one may be sufficient. In addition, the square recess 6
8 is provided at the front and rear two places, so that when the cutting and raising locking piece 63 and the cutting and raising pressing piece 64 are cut and raised in the process of forming the cylindrical spring 6b, a predetermined cutting and raising tool is formed. This makes it possible to cut and raise the locking piece 63 and cut and raise the pressing piece 64 even after the cylindrical body of the cylindrical spring 6b is formed. Processing efficiency is improved.

According to the cylindrical spring 6b of the third embodiment, the slide lever 7 is moved in the direction of the cylindrical spring 6b with the end surface of the slide lever 7 facing the end surface of the cylindrical spring 6b. Even if there is a misalignment between the two, as long as the slide lever 7 hits one of the guide pieces 67, the guide piece 6
7 and the other guide pieces 67 are alternately or simultaneously guided, so that the slide lever 7
The slide lever 7 is fitted into the cylindrical spring 6b while being guided by the spring, so that the mounting of the slide lever 7 on the cylindrical spring 6b becomes easy, and the workability of assembling the slide lever 7 can be improved.

[0058]

According to the first aspect of the present invention, the tubular spring interposed between the slide lever and the lock plate is provided with an inwardly-facing piece for pressing the outer surface and the inner surface of the slide lever. With the outward cut and raised piece to press,
The slide lever is coupled to the lock plate by further externally fitting the slide lever into the cylindrical spring externally fitted to the protruding piece, and in a state where both are coupled to each other, the protruding piece faces inward of the cylindrical spring. The outer surface is pressed by the cut-and-raised protruding piece, and the slide lever is pressed against the inner peripheral surface by the outwardly-raised and raised piece of the tubular spring, and the slide lever and the slide lever are pressed by the tension force in the opposite direction by the cut-and-raised piece. The rattling between the protruding pieces can be suppressed.

When the slide lever is mounted on the lock plate, a dimensional error of one or both of the slide lever and the lock lever, or an overall mounting error of the slider including a dimensional variation of the vehicle, is caused by the slide lever. Even if these errors exist, the left and right sliders are assembled without unlocking, and the time required for correction when a malfunction occurs is absorbed even if these errors exist. Speeding up can be achieved.

As described above, by interposing the cylindrical spring having the cut-and-raised pieces facing inward and outward between the slide lever and the protruding pieces, the number of parts is reduced as compared with the related art, and there is no play. Both can be combined, and the discomfort due to rattling can be reliably eliminated,
This can contribute to a reduction in component costs and an improvement in assembly efficiency.

According to the second aspect of the present invention, since the guide piece is provided at the tip of the tubular spring to guide the slide lever to fit the tubular spring, the slide lever is guided by the guide piece. Thereby, the slide lever can be easily fitted to the outside of the tubular spring, thereby improving the workability of attaching the slide lever to the tubular spring.

According to the third aspect of the present invention, by moving the slide lever in the direction of the cylindrical spring with the end surface of the slide lever facing the end surface of the cylindrical spring, there is a misalignment between the two. Even if it is present, as long as the slide lever fits into the V-shaped guide protrusion, the slide lever then elastically deforms the V-shaped guide protrusion by pressing the slide lever in the direction of the cylindrical spring. While being guided by the protruding piece and fitting into the cylindrical spring, the workability of mounting the slide lever to the cylindrical spring can be improved.

According to the fourth aspect of the present invention, by moving the slide lever in the direction of the cylindrical spring with the end surface of the slide lever facing the end surface of the cylindrical spring, there is a misalignment between the two. Even if it is present, as long as the slide lever hits one of the guide pieces, the guide is alternately guided to the guide piece and the other guide pieces thereafter. The workability of the work of attaching the slide lever to the cylindrical spring can be improved by fitting into the spring.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a seat to which a slide lever structure of the present invention is applied.

FIG. 2 is an exploded perspective view showing one embodiment of a slide lever structure.

FIG. 3 is a partially cutaway perspective view of the slide lever structure shown in FIG. 2;

4A and 4B are diagrams of a lock plate which is a component of the slide lever structure, wherein FIG. 4A is a side view and FIG. 4B is a plan view.

FIG. 5 is an explanatory side view showing a mounting state of the lock spring to the lock plate.

FIG. 6 is a view showing one embodiment of a cylindrical spring;
(A) is a front view, (B) is a side view, and (C) is a bottom view.

FIGS. 7A and 7B are views showing a second embodiment of the tubular spring, wherein FIG. 7A is a perspective view, FIG. 7B is a front view, FIG. 7C is a side view, and FIG. .

FIGS. 8A and 8B are views showing a third embodiment of the tubular spring, wherein FIG. 8A is a perspective view, FIG. 8B is a front view, FIG. 8C is a side view, and FIG. .

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Seat 11 Seat bottom 12 Seat back 2 Slider 21 Lower channel 22 Bottom plate 23 Side plate 24 Top plate 25a Lock tooth 25 Hanging plate 26 Upper channel 27a Shaft hole 27b Groove 27-shaped member 28 Wing member 29 Retainer 4 Lock plate 41 Reverse U-shaped plate 42b Shaft hole 42c Stopper piece 42 Horizontal plate 42 Above horizontal plate 42a Swelling piece 43c Locking projection 43d Locking projection 43 Arrowhead projection 43a Arrowhead 43b Arrowhead 44 Locking plate 44a Lock hole 45 Shaft 5 Lock spring 51 Front spring 52 Rear spring 53 Locking concave portion 6, 6a, 6b Cylindrical spring 61 Spring main body 61a Gap portion 62 Side cut and raised piece 63 Locking piece 64 Pressing piece 65 V-shaped guiding protrusion 66 Holding small piece 67 Guide small piece 68 Square Recess 7 Ride lever 71 Retaining hole F Floor P Turn point

Claims (4)

[Claims] 1. A lock plate is interposed between a lower channel and an upper channel integrated with a seat, which is guided by the lower channel, and a pipe-shaped slide lever connected to the lock plate is vertically operated. A seat slide lever mounting structure configured to perform locking and unlocking between both channels by a lock plate, wherein the lock plate includes a projecting piece formed at a front end portion, the projecting piece, and the slide piece. A cylindrical spring interposed between the levers and axially prevented by the protruding piece from coming off in the axial direction. The cylindrical spring includes an inwardly protruding piece for pressing an outer surface of the protruding piece, and an inner surface of the slide lever. A sheet slide lever mounting structure, comprising: 2. The cylindrical spring according to claim 1, wherein the cylindrical spring has a guide piece provided at a tip end thereof and for guiding the slide lever to fit outside the cylindrical spring. Seat slide lever mounting structure. 3. The guiding piece is formed by a V-shaped guiding protruding piece having a width dimension that is protruded from an end edge of the cylindrical spring and is folded back and is smaller than a diameter dimension of the cylindrical spring. 3. The seat slide lever mounting structure according to claim 2, wherein the guide projection is shaped so that a tip end thereof is located radially outward from an outer peripheral surface of the cylindrical spring. 4. The guide piece is formed by a plurality of guide pieces protruding from a leading edge of the cylindrical spring at equal circumferential intervals and bent at an acute angle inward in the radial direction. The seat slide lever mounting structure according to claim 2, characterized in that: