JP2002047842A - Seat engaging device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure engagement, to simplify constitution and to improve operability. SOLUTION: This seat engaging device for a vehicle comprises a striker 2 fixed to the vehicle body side, and an engaging member 4 rotatably fitted to a seat side body 1 and provided with a plurality of engaging grooves juxtaposed in the lengthwise direction so as to be engaged with the striker 2. The engaging member 4 is provided with an engaging body 17 projecting in an intersecting direction to a rotating direction. The engaging body 17 is arranged to be on a rotating locus line of a lever part 19 of a releasing lever 18 connected to one end of an operating rod 22 with the other end connected to an optional operating member 23, and to have a specified clearance to the lever part 19 when the striker 2 is engaged with the engaging groove.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an engagement device called a reclining adjust or the like for changing and holding an inclination angle of a vehicle backrest sheet.

[0002]

2. Description of the Related Art Conventionally, Japanese Unexamined Utility Model Publication No. Sho 56-63634 discloses a striker fixed to a vehicle body and a plurality of engagement grooves which are rotatably mounted on a seat body and are engaged with the striker. A vehicle seat engaging device including an engaging member arranged in a longitudinal direction is described.

[0003]

The engaging member of the above-mentioned known example has a knob for operation, so there is a problem that the mounting position must be set in consideration of the knob. When the engaging member is connected to the operating means at a remote position,
Although the above problem can be solved, there is another problem that the position of the operation means is changed due to a variation in manufacturing and assembling accuracy of the connection structure. Therefore, the degree of freedom in selecting the mounting position of the operation means is widened, and the accuracy of the connection structure is improved, the engagement is ensured, and the operability is improved.

[0004]

The object of the present invention is to increase the degree of freedom in selecting the mounting position of the operating means, improve the accuracy of the connection structure, ensure the engagement, and improve the operability.

[0005]

According to the present invention, a striker 2 fixed to a vehicle body and a plurality of engaging grooves rotatably mounted on a body 1 on a seat side and engaged with the striker 2 are provided. And engaging members 4 arranged side by side in the direction.
Is provided with an engaging body 17 protruding in a direction crossing the rotation direction. The engaging body 17 is connected to one end of an operating rod 22 having the other end connected to an arbitrary operating member 23.
8 is located on the rotation trajectory line of the lever portion 19 and has a predetermined gap with respect to the lever portion 19 when the striker 2 is engaged with the engagement groove. It is a combined device.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the drawings.
Reference numeral 1 denotes a body of a latch device (lock device) L, and a body-side striker entrance groove 3 into which a striker 2 fixed to the vehicle body enters is formed in an upper and lower middle portion thereof. A hook-shaped engaging member (latch) 4 is attached to the body 1 by an engaging member attaching shaft 5. The engaging member 4 forms an inclined guide surface 6 having an inclination that becomes higher toward the distal end on the lower surface side of the distal end. The inclined guide surface 6 is formed as an inclined surface that acts to rotate the engaging member 4 upward when the striker 2 enters and abuts.

A first-stage engaging groove (latch groove) 7 with which the striker 2 engages is formed in the engaging member 4 of the inclined guide surface 6 on the side of the engaging member mounting shaft 5. A second-stage engagement groove (latch groove) 8 with which the striker 2 engages is formed between the engagement member 7 and the engagement member mounting shaft 5. An abutting surface 9 against which the striker 2 abuts is formed on the engaging member 4 on the inner side of the second-stage engaging groove 8, and the second-stage engaging groove 8 engages with the striker 2 abutting against the abutting surface 9. I do. Note that a plurality of engagement grooves with which the striker 2 engages may be formed between the first-stage engagement groove 7 and the second-stage engagement groove 8. The first-stage engaging groove 7 has a front inner peripheral surface 10 located on the side of the striker 2 and a rear inner peripheral surface 11 on the back side. When the striker 2 passes through the inclined guide surface 6 and the lower end of the front inner peripheral surface 10, the rear inner peripheral surface 11 is formed so as to be positioned lower than the lower end of the front inner peripheral surface 10.
I always try to hit.

When the rear inner peripheral surface 11 is engaged, the rear inner peripheral surface 11 is inclined in a straight line or an arc shape so as to be rearward as it goes down, so that the front inner peripheral surface 10 and the rear inner peripheral surface 11 are inclined. Of the front side inner peripheral surface 10 and the rear inner peripheral surface 11 with a gap left above the first stage engaging groove 7 (second stage engaging groove 8). Are formed so as to abut and engage with both. Thus, the rear inner peripheral surface 11
Is formed on the receding surface 12. The retreat surface 12
When the striker 2 passes through the inclined guide surface 6 and the lower end of the front inner peripheral surface 10, the rear inner peripheral surface 11 with which the striker 2 comes into contact
Formed in the lower part of The receding surface 12 is formed to be inclined linearly or arcuately so as to become rearward from a predetermined upper and lower middle portion of the rear inner peripheral surface 11 toward the lower side. That is, the receding surface 12 in the side view is positioned more deeply than the engagement position of the striker 2 that engages with the first-stage engagement groove 7, and the striker 2 moves forward by the reaction of the striker 2 hitting the engagement member 4. In this case, the striker 2 is temporarily moved to the far side by the retreat surface 12 from the predetermined engagement position where the engagement member 4 is engaged with the first-stage engagement groove 7, and the engagement member 4 is rotated downward and engaged. Allow time for engagement to ensure engagement.

The rear inner peripheral surface 11 is inclined linearly or in an arc so as to be rearward as it goes down, and the receding surface 12 is located more rearward (backward) than the rear inner peripheral surface 11. The rear inner peripheral surface 11 is configured to be separated from the striker 2 when it is positioned and rotated upward from the engaged state with the striker 2 to the disengaged state. Thus, the rear inner peripheral surface 11
The lower part of the (retreat surface 12) is lower than the lower part of the front inner peripheral surface 14 of the second-step engaging groove 8, and the rear inner peripheral surface 11 (retreat surface 12).
Of the second step engaging groove 8 is inclined so as to become higher toward the rear side. in this case,
An elastic member 15 is provided on the body 1 so as to overlap with the innermost portion of the second-stage engaging groove 8 when viewed from the side. The striker 2 may be sandwiched by the member 15.

A shaft-shaped engaging member 17 protruding rearward is provided on the side surface of the engaging member 4, and the lever portion 19 of the release lever 18 is provided between the engaging member 17 and the engaging member 17. Is provided with a gap 70. Opening lever 1
8 is rotatably attached to a cover 21 by a shaft 20, one end of an operation rod 22 is attached to the release lever 18, and the other end of the operation rod 22 is locked to an operation member 23 such as an arbitrary knob. Reference numeral 24 denotes a restricting body provided on the opening lever 18, which is engaged with an engaging hole 25 provided on the cover 21 to restrict the opening lever 18 from rotating in the reverse direction. The opening lever 18 may be provided on the body 1 side.

When the striker 2 enters the striker entrance groove 3, the engagement member 4 is initially guided by the inclined guide surface 6 and moves upward, so that the striker 2 moves below the first stage engagement groove 7. And then the operating rod 22
When the engaging member 4 is moved upward, the striker 2 becomes movable. When the striker 2 enters the inner side, the striker 2 engages with the second-stage engaging groove 8. Then, the body 1 is attached to the cover 21.
A cover side striker entrance groove 30 corresponding to the side striker entrance groove 3 is formed, and a substantially flat stopper surface 31 is provided below the cover side striker entrance groove 30 in the longitudinal direction of the cover side striker entrance groove 30. When the surface 31 is rotated about the engagement member mounting shaft 5 of the engagement member 4, the contact portion 32 of the lowest portion (the lower portion of the rear inner peripheral surface 11 in the embodiment) is brought into contact with the surface 31, and is inclined. When the striker 2 comes into contact with the guide surface 6, the engaging member 4 is made to stand by at a waiting position so as to rotate the engaging member 4 upward. A spring 33 urges the engagement member 4 to always rotate downward. The stopper surface 3
1 may be provided on the body 1 side.

The latch device L comprises the body 1, the cover 21 and the engaging member 4 as described above, and these are assembled only by the engaging member mounting shafts 5, respectively. L is attached to the side surface of the backrest sheet 36 of the vehicle seat 35 provided on the vehicle body by a fastener 37 such as a bolt or a screw. That is, the body 1 and the cover 2
1 has a plurality of mounting holes 38 and 39, respectively.
8 and the fastening member 37 inserted through the mounting hole 39 is attached to the backrest sheet 36.
By screwing the latch device L to the side, not only the latch device L is attached to the backrest sheet 36, but also the attachment between the body 1 and the cover 21 is strengthened.

In this case, the cover 21 is bent toward the body 1 above the intermediate plate portion 40 having the cover-side striker entrance groove 30 so as to have a predetermined distance from the body 1 so as to be parallel to the body 1. The lower mounting portion 42 is provided below the intermediate plate portion 40, and the mounting hole 39 is formed in the upper mounting portion 41 and the lower mounting portion 42.
In addition, a portion where the lower mounting portion 42 is bent with respect to the intermediate plate portion 40 serves as the stopper surface 31 to simplify the configuration. A flange 43 protruding toward the cover 21 is provided on a peripheral edge of the body 1 at a predetermined position.
Foreign matter is prevented from entering the inside between the cover and the intermediate plate portion 40 of the cover 21.

Reference numeral 44 denotes a body-side positioning engagement member formed on the positioning body 1, and reference numeral 45 denotes a cover-side positioning engagement member formed on the cover 21 with which the body-side positioning engagement member 44 engages. The backrest seat 36 is rotatably attached to the seat 46. In the embodiment, the vehicle seat 35 is configured as a seat in the second and subsequent rows, and the inclination angle of the backrest seat 36 is changed in two stages.
Reference numeral 47 denotes a backrest frame of the backrest sheet 36, and reference numeral 48 denotes a fixing bracket fixed to the vehicle body.

[0015]

The stopper surface 31 provided on the cover 21 for holding the engaging member 4 at the standby position so as to rotate the engaging member 4 upward when the striker 2 comes into contact with the inclined guide surface 6.
The lower part of the lower inner peripheral surface 11 of the engaging member 4 is brought into contact with the lower part of the inner peripheral surface 11 of the engaging member 4 to stand by, and the engaging member 4 is urged by the spring 33 to always rotate downward. When the backrest sheet 36 is moved forward, the body 1
, The striker 2 enters the striker entrance groove 3, the striker 2 abuts on the inclined guide surface 6 of the engaging member 4, and the inclined guide surface 6 pushes the engaging member 4 against the spring 33 and engages with the engaging member mounting shaft 5.
When the striker 2 passes through the inclined guide surface 6 and reaches below the first-step engagement groove 7, it is guided to rotate upward to the center.
The engagement member 4 is engaged by the elastic force of the spring 33.

Therefore, the stopper surface 3 of the cover 21
1, the inclined guide surface 6 is kept on standby so that the backrest sheet 36 can be erected without any operation. Engage to improve operability. Thus, another second-stage engaging groove 8 is formed in the first-stage engaging groove 7 of the engaging member 4 on the side of the engaging member mounting shaft 5, and the engaging body 17 of the engaging member 4 has another Since the end faces the lever portion 19 of the release lever 18 locked to an operation member 23 such as an arbitrary knob, when the release lever 18 is moved upward by the operation rod 22, the lever portion of the release lever 18 is moved. Reference numeral 19 pulls the engagement body 17 upward, whereby the engagement member 4 rotates upward about the engagement member mounting shaft 5 to release the striker 2 from the first-stage engagement groove 7.

In this case, since the predetermined gap 70 is provided between the lever portion 19 and the engaging body 17, the release lever 1 is provided.
After the lever 19 of FIG. 8 rotates by a predetermined amount, it comes into contact with the engagement body 17 and rotates. Therefore, even if there is a difference in length generated due to a manufacturing error or the like between the lever portion 19 and the operation member 23, the gap 70 absorbs the difference, and the operation member 23 can always be located at a fixed position. In addition, the operation is reliably transmitted. Next, in this state, when the backrest sheet 36 is tilted rearward, the striker 2 enters the innermost position of the striker entrance groove 3 and the abutting surface of the engagement member 4 at the back of the second-stage engagement groove 8. 9 and then release the release lever 18, the second stage engaging groove 8 of the engaging member 4 engages the striker 2 and holds the backrest sheet 36 at the second stage position. .

The first engagement groove 7 of the engagement member 4
Has a front inner peripheral surface 10 located on the striker 2 side and a rear inner peripheral surface 11 located on the engaging member mounting shaft 5 side.
Since the lower end of the rear inner peripheral surface 11 is formed below the lower end of the front inner peripheral surface 10, the striker 2
When the striker 2 comes into contact with the inclined guide surface 6 and rotates the engaging member 4 upward and passes through the lower end of the front inner peripheral surface 10, the striker 2 always hits the rear inner peripheral surface 11. Therefore, when the backrest sheet 36 is raised, not only the engaging operation is unnecessary, but also the backrest sheet 36 always engages with the first-stage first-stage engaging groove 7.

Thus, the rear inner peripheral surface 1 of the first-stage engagement groove 7
1 is inclined in a straight line or an arc shape so as to be on the rear side as it goes down, and the front and rear widths of the front inner peripheral surface 10 and the rear inner peripheral surface 11 are formed narrower as they go upward. 4
When the first stage engaging groove 7 is engaged from above the striker 2, the striker 2 is separated from the front inner peripheral surface 10 and the rear inner surface by leaving a gap above the first stage engaging groove 7. It comes into contact with and engages with both of the peripheral surfaces 11. Therefore, the engagement member 4 is prevented from rattling in the engaged state. Thus, the first-stage engagement groove 7
The lower portion of the rear inner peripheral surface 11 is formed on the receding surface 12 located on the back side from the engagement position of the striker 2 when viewed from the side, so that the striker 2 is once deeper than the original engagement position. It takes time until the engagement member 4 moves downward and engages with the engagement member 4 to ensure the engagement.

That is, the striker 2 is moved into the striker entrance groove 3.
When the striker 2 moves forward and hits the engaging member 4, the striker 2 attempts to move forward due to the reaction. Therefore, when the reaction is large, the striker 2 is positioned on the near side below the first stage engagement groove 7. However, the striker 2 is once advanced deeper than the engagement position by the retreat surface 12 farther than the predetermined engagement position. Of the first stage engaging groove 7
Is engaged. Therefore, it takes time until the engagement member 4 rotates downward and engages with the receding surface 12 to ensure the engagement. Thus, the rear inner peripheral surface 11 is inclined linearly or in an arc so as to be rearward as it goes downward, and the retreat surface 12 which is a part of the rear inner peripheral surface 11 is located rearward of the predetermined engagement position. When the engagement member 4 is rotated upward from the engagement state with the striker 2 to the non-engagement state, the rear inner peripheral surface 11 is separated from the striker 2. Therefore, the striker 2 and the engaging member 4 are disengaged without changing the relative position, so that the operation load is not increased during the non-engagement operation.

That is, the rear inner peripheral surface 11 is opposite to the embodiment,
When the rear inner peripheral surface 11 is inclined forward, the rear inner peripheral surface 11 separates while pressing the striker 2, so that the occupant moves while pressing the back of the occupant, which increases the operation load. To eliminate. Thus, the rear inner peripheral surface 11
The lower part of the (retreat surface 12) is lower than the lower part of the front inner peripheral surface 14 of the second-step engaging groove 8, and the rear inner peripheral surface 11 (retreat surface 12).
Is inclined so as to become higher toward the rear side, so that the engaging member 4 is vertically moved in the engaged state due to an accidental cause. Even if it vibrates, it does not come off from the first-stage engagement groove 7 and engage with the second-stage engagement groove 8. In addition, since the lower part of the rear inner peripheral surface 11 (retreat surface 12) and the front inner peripheral surface 14 of the second-step engagement groove 8 are inclined so as to become higher toward the rear side, the second When the striker 2 is disengaged from the step engagement groove 8, the striker 2 passes through the lower portion of the lowest rear inner peripheral surface 11 and does not engage with the first step engagement groove 7, and the striker 2 is moved in one motion. To the free state.

Thus, as described above, the rear inner peripheral surface 11
The lower part of the (retreat surface 12) is lower than the lower part of the front inner peripheral surface 14 of the second-step engaging groove 8, and the rear inner peripheral surface 11 (retreat surface 12).
Between the lower part of the engaging member 4 and the front inner peripheral surface 14 of the second-stage engaging groove 8 is inclined so as to become higher toward the rear side. Contact part 32 of
When the striker 2 comes into contact with the upper surface of the cover 21 and the striker 2 comes into contact with the inclined guide surface 6, the engaging member 4 is made to stand by at a standby position so as to rotate upward. Therefore, when raising from the falling body, not only the operation for engaging with the inclined guide surface 6 is not necessary, but also when the member is folded from the standing state, the engaging member 4 is actuated by the action of the stopper surface 31 and the spring 33. Automatically returns to the initial state, eliminating the need for an engagement standby operation.

Since the stopper surface 31 is formed by bending the cover 21 to be attached to the body 1, it is only necessary to attach the cover 21 to the body 1, and manufacturing and assembling are easy. Thus, the latch device L is configured by sandwiching the engagement member 4 between the body 1 and the cover 21, and the body 1, the cover 21, and the engagement member 4 are respectively connected only by the engagement member mounting shaft 5. Since the assembling is performed, since the fastening portion at the time of assembling is located at one position of the engagement member mounting shaft 5, the assembling is very easy. In the latch device L in this state, several mounting holes 39 provided in the body 1 and the cover 21 are attached to the side surfaces of the backrest sheet 36 of the vehicle seat 35 provided on the vehicle body by the fasteners 37. And the cover 21 are fixed in several places, the assembling strength is strengthened, and the work for assembling to the backrest sheet 36 is also used, thereby facilitating the work and improving the efficiency.

The cover 21 is bent toward the body 1 above the intermediate plate portion 40 having the cover side striker entrance groove 30 so as to have a predetermined distance from the body 1 so as to be parallel to the body 1. The upper mounting portion 41 is provided with a lower mounting portion 42 at a lower portion of the intermediate plate portion 40 and a flange portion 43 protruding toward the cover 21 is provided on a peripheral edge of a predetermined position of the body 1. When the cover 21 and the cover 21 are stopped by the engagement member mounting shaft 5, the peripheral edge of the cover 21 contacts the flange 43, and the body 1 and the cover 21
Are prevented from rotating relative to each other about the engaging member mounting shaft 5, thereby facilitating the assembling operation. Further, since the body 1 is provided with the body-side positioning engaging member 44 and the cover 21 is provided with the cover-side positioning engaging member 45 with which the body-side positioning engaging member 44 is engaged, the body 1 and the cover 2 are provided.
When fastening 1 by the engagement member mounting shaft 5, the fastening work is further facilitated.

The cover 21 is formed by bending the upper and lower sides of the intermediate plate portion 40 to form an upper mounting portion 41 and a lower mounting portion 42, respectively.
Since the bent portion is formed on the stopper surface 31, the rational configuration is achieved, the manufacturing is facilitated, and the number of parts is reduced. In addition, since the flange portion 43 is provided on the periphery of the body 1 at a predetermined position, the flange portion 43 not only does not rotate the cover 21 with respect to the body 1 but also
It is also possible to prevent foreign matter from entering the space between the body 1 and the intermediate plate portion 40 of the cover 21.

[0026]

According to the present invention, a striker 2 fixed to a vehicle body is provided.
And an engaging member 4 which is rotatably mounted on the body 1 on the seat side and has a plurality of engaging grooves which are engaged with the striker 2 and are arranged in the longitudinal direction. An engaging body 17 protruding in a direction intersecting the rotation direction is provided, and the engaging body 17 is connected to one end of an operating rod 22 having the other end connected to an arbitrary operating member 23.
9, the vehicle seat engaging device is arranged so as to have a predetermined gap with respect to the lever portion 19 when the striker 2 is engaged with the engaging groove on the rotation trajectory line 9. , The operation member 23
The gap 70 between the lever portion 19 and the engaging body 17 absorbs the difference in length caused by a manufacturing error or the like until the operating member 23 is always located at a fixed position. Can and reliably transmit operations. Since the body 1 of the engagement device and the striker 2 only need to move relatively, the configuration such as the mounting position is not limited by the expression. May be provided on the seat side, and for convenience of explanation, the striker 2 and the body 1 of the engagement device may be interpreted as being alternately moved. The other is provided on the moving side.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of an engagement device.

FIG. 2 is an assembled perspective view of the engagement device.

FIG. 3 is a partially omitted side view of the engagement device in an initial standby state.

FIG. 4 is a side view assuming that a striker is engaged with one of engagement grooves.

FIG. 5 is a perspective view of a seat.

FIG. 6 is a perspective view showing an example of a frame on which the engaging device is mounted.

FIG. 7 is a side view before a striker enters.

FIG. 8 is a side view showing a state in which the striker is in contact with the receding surface.

FIG. 9 is a side view showing a state in which the striker enters the engagement groove.

FIG. 10 is a side view showing a state where the striker is engaged with the engagement groove.

[Explanation of symbols]

1 ... body, 2 ... striker, 3 ... striker entrance groove,
4 ... engagement member, 5 ... engagement member mounting shaft, 6 ... inclined guide surface,
7: first-stage engagement groove, 8: second-stage engagement groove, 9: abutting surface, 1
0: front inner peripheral surface, 11: rear inner peripheral surface, 12: retreat surface, 1
5 ... elastic member, 17 ... engaging body, 18 ... opening lever, 1
Reference numeral 9: lever portion, 20: shaft, 21: cover, 22: operating rod, 23: operating member, 24: regulating body, 25: engaging hole,
Reference numeral 30: groove on the cover side striker, 31: stopper surface, 32: contact portion, 33: spring, 36: backrest sheet, 3
7 ... fastening tool, 38 ... mounting hole, 39 ... mounting hole, 40 ... intermediate plate part, 41 ... upper mounting part, 42 ... lower mounting part, 43 ... flange part, 44 ... body side positioning engaging member, 45 ...
Cover side positioning engagement member, 70 ... gap.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Akira Takahashi 1200, Shimojo Nishiwara, Ogusa-cho, Nirasaki, Yamanashi Prefecture Inside the Nirasaki Plant of Mitsui Kinzoku Mining Co., Ltd. Mitsui Kinzoku Mining Co., Ltd. Nirasaki Plant F-term (reference) 2E250 AA21 HH01 JJ00 LL20 PP02 PP04 PP11 QQ09 3B087 CA11

Claims (1)

[Claims] 1. An engaging member having a striker 2 fixed to a vehicle body and a plurality of engaging grooves rotatably mounted on a body 1 on a seat side and engaged with the striker 2 in a longitudinal direction. 4
The engaging member 4 is provided with an engaging member 17 protruding in a direction crossing the rotation direction, and the engaging member 17 is connected to one end of an operating rod 22 having the other end connected to an arbitrary operating member 23. A vehicle arranged on the rotation trajectory line of the lever portion 19 of the release lever 18 and having a predetermined gap with respect to the lever portion 19 when the striker 2 is engaged with the engagement groove. Sheet engaging device.