JP2003341570A - Seat having movable backrest for motorcycle or tricycle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seat for a motorcycle or a tricycle having a movable backrest simply adjusted to the optimum position for a driver in the motorcycle or tricycle having a storing part. <P>SOLUTION: This seat S for the motorcycle or the tricycle includes the movable backrest at the rear of a seat part 1. The movable backrest 2 is provided with a sliding member 11 supporting the back of the movable backrest 2 and extended toward the seat part 1. The sliding member 11 is provided with a cutout part formed in the longitudinal direction, and the sliding member 11 is provided with a movement regulating means for regulating the movement. The movement regulating means is provided with a fitting member 31 energized to the cutout part. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motorcycle seat provided with a movable backrest, and more particularly, to an automatic vehicle provided with a movable backrest capable of appropriately positioning the movable backrest for a driver. Related to seats for motorcycles.

[0002]

2. Description of the Related Art Conventionally, in a motorcycle such as a scooter type vehicle, a rear portion of a seating portion is provided in order to secure a seating position and a back pain and fatigue during long-time driving.
A seating seat having a structure in which a backrest is provided for giving a pressure (holding feeling) to a driver's waist is known.

In order to apply an optimum pressure to the driver's waist by the backrest and to obtain a more comfortable ride, the backrest is adjustable according to the physique and height of the occupant. Is desirable.

[0004]

Therefore, the rear seat slidably provided on the vehicle body frame is partially overlapped with the upper surface of the front seat, and the rear seat is used as a backrest to adjust to the optimum position for the driver. The configuration is known.

However, in this case, since the rear seats are overlapped with the front seats, the front seats cannot be opened and closed in the vertical direction, and there is the inconvenience that the storage section cannot be provided below the seats. It was

Alternatively, there is a method in which movable backrests of various sizes are optionally prepared and selected according to the physique and height of the occupant. However, there is a problem that it is necessary to cope with various sizes and the cost increases.

An object of the present invention is to provide a motorcycle seat having a storage portion, which has a movable backrest and which can easily adjust the backrest to an optimum position for the driver. To provide.

[0008]

According to the seat S for a motorcycle equipped with the movable backrest 2 of the present invention, the above-mentioned problem is solved by providing the seat portion 1 and the movable backrest 2 behind the seat portion 1. In the equipped motorcycle seat S, the movable backrest 2 is provided with a sliding member 11 that supports the back surface of the movable backrest 2 and extends toward the seating portion 1 side. Is a notch 11a along the longitudinal direction.
Is provided, the sliding member 11 is provided with a movement restricting means for restricting movement, and the movement restricting means is provided with the cutout portion 11.
It is solved by having a fitting member biased to a.

As described above, according to the seat S for a motorcycle having the movable backrest of the present invention, the movable backrest 2 is provided with the sliding member 11, and the sliding member 11 is slid. As a result, the movable backrest 2 can be moved to a desired position. When the movable backrest 2 is moved to an appropriate position, movement of the sliding member 11 is regulated by the movement regulating means provided in the seating portion 1. Since the movement restricting means is composed of a fitting member that is biased by the cutout portion 11a of the sliding member 11, the sliding member 11 can be reliably fixed at a predetermined position without using a special tool or the like. It becomes possible.

More specifically, the movement regulating means 30
Is a projection 31 that can be fitted into at least the cutout portion 11a.
A holding portion 32 that holds the projection 31 and is connected to the seating portion 1 side; a spring member 33 that biases the holding portion 32 toward the cutout portion; and a biasing force of the spring member 33. And an operating portion 34 for separating the holding portion 32 from the cutout portion 11a.

Alternatively, the movement restricting means 40 is provided with a slit 41c from the tip end side toward the root side, and the rivet member 41 inserted from the seating portion 1 side and fitted into the cutout portion 11a, The rivet member 41 is provided upright with a narrower width than the cutout portion 11a and engages with the rivet member 41. The rivet member 41 expands from the slit 41c and is biased by the cutout portion 11a. The slit 41c is closed by engaging at least a portion of the rivet member 41 not including the slit 41c with the upright portion 42a, so that the rivet member 41 can be inserted through the cutout portion 11a. It is a thing.

Alternatively, the movement restricting means 50 includes the head 5
1b and a rivet member 51 that has a shaft portion and is inserted from the seating portion 1 side to fit into the cutout portion 11a; and a positioning member for the rivet member 51 that is installed on the slide member 11 side in the cutout portion 11a. 52, the rivet member 51 includes an engaging portion 51e with the positioning member 52,
From the engaging portion 51e to the head portion 51b of the rivet member 51
The distance to the root is smaller than the thickness of the member in which the rivet member 51 including the sliding member 11 is arranged. Accordingly, when the positioning member 52 is engaged with the engaging portion 51e of the rivet member 51, the rivet member 51 is biased toward the positioning member side 52 and is reliably disposed in the cutout portion 11a.

Regarding the rivet member 51, at least a first shaft portion 51c fitted and fixed to the cutout portion 11a of the sliding member 11 and provided on the end side of the first shaft portion 51c. The sliding member 11 is configured to include a second shaft portion 51d that is movable in the longitudinal direction within the cutout portion 11a, and the second shaft portion 51d has a first engaging portion 51e and a second engaging portion 51e. The joining portion 51f is provided, and the distance from the first engaging portion 51e to the root of the head portion 51b of the rivet member 51 is greater than the thickness of the member including the sliding member 11 on which the rivet member 51 is arranged. It may be formed in a position where it becomes smaller, and the distance between the second engaging portion 51f and the first engaging portion 51e is larger than the thickness of the sliding member 11.

With this structure, the positioning member 52 is engaged with the first engaging portion 51e of the rivet member 51, so that the first shaft portion 51c is moved to the sliding member 11.
The sliding member 11 is locked by engaging with the notch 11a.
Further, by engaging the positioning member 52 with the second engaging portion 51f, the second shaft portion 51d becomes movable in the notch portion 11a of the sliding member 11 in the longitudinal direction, whereby the rivet member 51 is moved. It is possible to move the sliding member 11 without removing it.

Alternatively, as the movement restricting means 60, at least a projection 61a which can be fitted in the cutout portion 11a and a shaft supported by the seating portion 1 side, and the projection 61a is provided in the cutout portion 1a.
1a, which is movably held in a direction toward or away from the side 1a, and either the side of the holding portion 61 where the protrusion 61a is arranged, or the side opposite to the side where the protrusion 61a is arranged. Cam member 62 provided with engaging convex portion 62a
And a knob 63 for rotatably holding the cam member 62,
May be provided. In this movement restricting means 60, by rotating the knob 63, the convex portion 62a of the cam member 62 engages with the holding portion 61, and the projection 61a of the holding portion 61 approaches the cutout portion 11a. Alternatively, it is moved in the direction of separation.

The movement restricting means 70 has a projection 71b which can be fitted into the notch 11a from the seat 1 side.
A holding portion 71 that holds the projection 71b and is connected to the seating portion 1 side, an engaging portion 72a that engages with the holding portion 71, and a grip portion 72b that is continuous with the engaging portion 72a. The operation unit 72 may be included. In this case, by moving the gripping portion 72b, the engaging portion 72a engages with the holding portion 71, and the protrusion 71b
Is pushed up toward the notch 11a, and the protrusion 71b
Engages with the notch 11a to regulate the movement of the sliding member 11.

A seat S for a motorcycle having a movable backrest according to the present invention is a seat S for a motorcycle having a seat portion 1 and a movable backrest 2 above the seat portion 1. The movable backrest 2 is provided with a pair of sliding members 11 that support the back surface of the movable backrest 2 and extend to the seating portion 1 side. The sliding members 11 have notches facing each other along the longitudinal direction. A portion 11a is provided, and the sliding member 11 is provided with a movement restricting means for restricting movement, and the movement restricting means includes a pair of fitting members that are biased by the cutout portion 11a. And

More specifically, the movement regulating means 80
Is a rotatable knob 82 provided on the seating portion 1 side.
And a cut groove 82c provided in a predetermined portion of the knob 82 in an arc shape, and a connecting member 81 movable in the cut groove 82c.
a and the notch 11a connected to the connecting member 81a
And a fitting member 81 to the fitting member 8 for moving the connecting member 81a in the cut groove 82c by rotating the knob 82. The fitting member 8 is moved in accordance with the movement of the connecting member 81a.
The position of 1 is configured to be changed.

Alternatively, the movement restricting means 90 includes a steel wire member 91 which is installed between the cutout portions 11a and can be fitted into the cutout portions 11a, and the steel wire member 91 is provided at least at both free end portions 91a. A bent portion is provided and the free end portion 91 is provided.
It is configured to be bent in such a way that a approaches each other and disposed in the seating portion 1.

Furthermore, a seat S for a motorcycle having a movable backrest according to the present invention is a seat S for a motorcycle having a seat portion 1 and a movable backrest 2 above the seat portion 1, The movable backrest 2 is provided with a pair of sliding members 11 that support the back surface of the movable backrest 2 and extend to the seating portion 1 side, and the sliding members 11 are provided on the seating portion 1 side. The cutout portions 11a and 106, which are arranged along the disposing portion 21 and communicate with the sliding member 11 and the disposing portion 21, are provided to face each other along the longitudinal direction, and the cutout portions 11a and 106 are provided. A movement restricting means 100 for restricting the movement of the sliding member 11 is engaged with the movement restricting means 100, and a part of the movement restricting means 100 is axially attached and the end portion side is biasing means 1.
It is configured to include a pair of fitting members 101 that are spread by 03 and fit into the cutout portions.

In the above structure, the fitting member 1
01 is provided with a pair of upright portions 105 that can be engaged with the fitting member 101, and the distance between the pair of upright portions 105 is greater than the distance between the pair of sliding members 11. The fitting member 101 may be engaged with the erected portion 105 so as to be separated from the cutout portion 11a.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. The members, arrangements, and the like described below do not limit the present invention and can be variously modified within the scope of the gist of the present invention.

1 to 5 show an embodiment of the present invention, FIG. 1 is an explanatory view showing a motorcycle seat of the present invention, and FIG. 2 shows a movement restricting means according to the first embodiment. 3 is a partial cross-sectional view of the motorcycle seat provided, FIG. 3 is an explanatory view showing the movement restricting means according to the first embodiment, and FIG.
Sectional drawing, FIG. 5 is a BB sectional view of FIG.

In this example, as a motorcycle seat,
Description will be made based on an example applied to a seating seat used in a motorcycle. The seats for motorcycles include not only those used for motorcycles, that is, land-based motorcycles and scooters, but also seats for snowmobiles, watercrafts, tricycle buggy vehicles, straddle-type vehicles, or construction vehicles. Includes vehicle seats for machine seats.

Further, in the present embodiment, as the seat S for a motorcycle, a two-seater seat for a motorcycle will be described as an example, but the present invention may of course be a one-seater seat. is there.

The seat S for a motorcycle according to this example is composed of a seat 1 including a front seat 1a, a rear seat 1b, and a backrest 2 provided on the rear side of the front seat 1a.
As shown in FIG. 1, the backrest 2 is movable in the front-rear direction of the vehicle body and is configured to be adjusted to a position suitable for the driver.

The seating portion 1 is provided with a bottom plate 1c as a bottom plate, and a cushion material (not shown) and a skin material (not shown) that covers the cushion material are disposed on the bottom plate 1c. The bottom plate 1c is
It is made of one piece of hard synthetic resin material (PP: polypropylene), and as shown in FIG. 2, front seat 1a and rear seat 1
b is integrally supported. The front seat 1a and the rear seat 1b are arranged so that the rear seat 1b side is higher than the front seat 1a.
Is formed with a step portion between and.

The shape of the bottom plate 1c is not limited to the one having a single step as in the present example, and is formed along the seat surface shape. Further, the material is not limited to the synthetic resin, and a metal material can be used.

The cushion material is made of urethane foam material, for example, and is placed on the bottom plate 1c. Further, it is formed such that the front seat side is low and the rear seat side is high in accordance with the shape of the bottom plate. The surface of the cushion material is covered with a skin material. The skin material is formed of a water resistant material such as PVC (polyvinyl chloride resin).

The backrest 2 is a bottom plate 2a.
And a cushion material (not shown) provided on the bottom plate 2a, and a skin material (not shown) covering the cushion material.

The bottom plate 2a of the backrest 2 is
As shown in FIG. 2, it is arranged along a step portion located between the front seat 1a and the rear seat 1b. The cushion material of the backrest 2 is made of urethane foam material, and the cushion material is covered with a skin material such as PVC.

Bottom plate 2 of backrest 2 of this example
Position adjustment means for adjusting the position of the backrest 2 in the vehicle body front-rear direction is connected to a. The position adjusting means includes a slide rail 11 as a sliding member, a guide mechanism 20 for guiding the slide rail 11 to move in a predetermined direction, and a movement restricting means 30 for restricting the movement of the slide rail 11. There is.

The slide rail 11 is a long member having a U-shaped cross section. The slide rails 11 are provided to support the back surface of the backrest 2 and to extend two toward the rear seat 1b side. On the upper surface of the slide rail 11,
The notch 11a is provided in a slit shape. Notch 1
1a is formed in a shape in which the hole 11b and the constricted portion 11c are continuous.

The guide mechanism 20 guides the slide rail 11 in a predetermined direction when the slide rail 11 moves, and holds the slide rail 11 so that it can be slid appropriately.
The guide mechanism 20 includes the bottom plate 1c of the seat 1
It is provided on a rail and has a rail portion 21 and a guide plate 22.

Two rail portions 21 provided on the bottom plate 1c are formed for one slide rail. The slide rail 11 is fitted to the rail portion 21,
It is configured to slide along the rail portion 21.
In the case of a single-seat seat, the guide mechanism 20
For example, it is provided on the vehicle body frame extending rearward from the seating portion 1.

The guide plate 22 is a long member made of steel, and two guide plates 22 are provided at the end of the slide rail 11, that is, at the end of the slide rail 11 opposite to the side connected to the backrest 2. It is arranged so as to be hung over the slide rail 11. The guide plate 22 is attached to the rear seat 1b by the insert bolt 22a.
Is fixed to the bottom plate 1c.

The guide plate 22 is the slide plate 1
Hold 1 by pressing from above. As a result, when the slide rail 11 slides, the slide rail 11 does not float and come off the rail portion 21, so that a suitable operation of the slide rail 11 can be ensured.

Various configurations can be cited as the movement regulating means for regulating the movement of the slide rail 11. Less than,
Each movement restriction means will be described sequentially.

(First Embodiment) The movement restricting means 30 of this embodiment
Is a projection 31 that can be fitted into the cutout portion 11 a of the slide rail 11, and a positioning plate 32 that holds the projection 31.
A spring member 33 for urging the positioning plate 32,
The positioning plate 32 is made up of a knob 34 as an operation unit that moves.

The projection 31 is engaged with the hole 11b of the cutout portion 11a of the slide rail 11 and regulates the movement of the slide rail 11. The protrusion 31 is made of steel and has a head portion 31a and a leg portion 31b, and the leg portion 31b is configured to engage with the cutout portion 11a.

[0041] The positioning plate 32 is made of steel and
It is arranged above the ride rail 11. Positioning
Rate 32 uses two plates 32a, 32b
It can be opened and closed by connecting it with a cable etc. and using the bar 32c as a boundary.
Is formed in. The positioning plate 32 is a back plate.
The plate 32b located on the strike 2 side has bolts 32e and
And fixed to the bottom plate 1c with the nut 32f.
There is. The plate 32b is the bottom plate 1c.
Engages with the provided engagement member 32d to prevent displacement
Is held as.

A spring member 33 is arranged around the bar 32c of the positioning plate 32. Spring member 33
The coil portion 33a is wound around the bar 32c, and the portions 33b and 33c continuous with the coil portion 33a are arranged on the plates 32a and 32b, respectively.

As described above, since the positioning plate 32 is provided with the spring member 33 at the boundary when the positioning plate 32 is opened and closed, it is possible to give elasticity when the positioning plate 32 is opened and closed. That is, when the plate 32a on the non-fixed side stands up at a predetermined angle, the portion 33c of the spring member 33 disposed on the plate 32a is moved to the plate 3a.
It moves upward together with 2a. Thereby, the coil unit 3
3a changes from a normal state to a wound state.

Therefore, when the force that moves the positioning plate 32 upward is released, the coil portion 33a wound as described above tends to return to its original state. As a result, the positioning plate 32 returns from the standing state to the original lying state.

It should be noted that the positioning plate 32 is provided with a knob 34 for performing an operation of raising and lowering the positioning plate 32. The knob 34 includes a grip portion 34a made of resin and a shaft 34b connected to the grip portion 34a.

The shaft 34b is used for the positioning plate 32.
Are connected at a predetermined angle. In this example,
The shaft 34b is formed in a substantially L shape, and the knob 34b
Is configured so as not to largely project downward from the seat side for the motorcycle. This is preferable because the knob 34 does not protrude into the storage portion provided in the vehicle body and interferes with it.

When the knob 34 is moved to the right in FIG. 2, the shaft 34b moves to the upper right. Then, the positioning plate 32 connected to the shaft 34b is lifted upward from the portion located on the right side in the drawing against the biasing force of the spring member 33.

When the positioning plate 32 is erected, the protrusion 31 of the positioning plate 32 is disengaged from the cutout portion 11a of the slide rail 11. Then, the slide rail can be freely moved. Regarding the protrusion 31, the leg portion 31
It may be configured such that it gradually becomes thinner as it goes to the tip end portion of b, and the tip end portion of the leg portion 31b engages with the cutout portion 11a when the positioning plate 32 stands up.

In this example, the notch 1 of the slide rail 11
Since the hole 11b and the constricted portion 11c are continuously formed in the la 1a, a click feeling is generated when the tip of the projection 31 passes through the constricted portion 11c, and the slide rail 11 is moved with a click feeling. It becomes possible.

When the force applied to the knob 34 is released, the shaft 34b returns from the upper right position in the drawing to the original position, and the positioning plate 32 returns to the original prone state together with the restoring force of the spring member 33.

When the positioning plate 32 is prone, the projection 31 fits into the hole 11b provided in the cutout 11a of the slide rail 11, and the movement of the slide rail 11 is restricted so that it cannot move.

(Second Embodiment) FIGS. 6 to 11 show another embodiment of the movement restricting means. In this example, the same members and the like as those in the above-described example are designated by the same reference numerals and the description thereof will be omitted. FIG. 6 is an explanatory view showing the movement restricting means according to the second embodiment, FIG. 7 is a sectional view taken along line CC of FIG. 6, and FIG. 8 is a view showing a front surface, a top view and a side surface of a rivet member according to the second embodiment. , Fig. 9
Is an explanatory view showing the operation of the rivet member according to the second embodiment,
FIG. 10 is an explanatory view showing characters attached to the bottom plate,
FIG. 11 is an explanatory diagram showing a method of forming a rivet member according to the second embodiment.

In the embodiment shown in FIGS. 6 to 11, a rivet member 41 is used as the movement restricting means 40 of the slide rail 11. As shown in FIG. 6, the rivet member 41 is arranged so as to penetrate through the bottom plate 1c of the rear seat 1b, the slide rail 11, and the guide plate 22 that constitutes the guide mechanism 20 of the slide rail 11.

Therefore, in this example, the bottom plate 1c
The guide plate 22 is also provided with notches 1e and 22b in the same manner as the notches 11a of the slide rail 11.

The guide plate 22 of this embodiment is not elongated like the guide plate of the first embodiment described above, but is arranged above each slide rail 11. The guide plate 22 is held by a claw portion 1d provided on the bottom plate 1c.

In this example, the rivet member 41 is connected to the bottom plate 1c, slide rail 11 and guide plate 22.
The slide rail 11 can be locked or unlocked by arranging the slide rail 11 through or pulling it out.

The rivet member 41, as shown in FIG.
The knob portion 41a, the shaft portion 41b, and the slit 41 formed from the tip end side of the shaft portion 41b toward the knob portion 41a.
c and a metal collar 41d. The knob portion 41a and the shaft portion 41b are made of, for example, polyacetal resin. In addition, as materials for the knob portion 41a and the shaft portion 41b, materials having abrasion resistance and wear resistance such as nylon and fluororesin are used.

The collar 41d is attached to the shaft portion 41b. When the collar 41d is assembled to the shaft portion 41b, the collar 41d is inserted from the tip end side of the shaft portion 41b as shown in FIG. The collar 41d is formed in a size that does not close the slit 41c provided in the shaft portion 41b when the collar 41d is arranged in the shaft portion 41b.

The shaft portion 41b is made of resin, and is configured to spread outward by the slit 41c. The slit 41c is configured to be closed when a force is applied from both sides of the shaft portion 41b.

An engaging portion 41e is provided at the tip of the shaft portion 41b.
Is provided. The engaging portion 41e is formed so as to become gradually thinner toward the tip side, and the collar 41d is attached to the rivet member 41, or the rivet member 41 is attached to the bottom plate 1c, the slide rail 11, and the guide plate 22. It is designed to be inserted smoothly when mating.

As shown in the top view of FIG. 8, the engaging portion 4
1e is formed so that the outer shape of the slit 41c when the slit 41c is widened is elliptical. Therefore, when the rivet member 41 is arranged so as to penetrate the bottom plate 1c, the slide rail 11, and the guide plate 22, the engaging portion 41
Notch 22 in which a part of e is provided in the guide plate 22
Notch 2 of the guide plate 22 that bulges outward than b
It is configured to engage with both side portions of 2b. As a result, the rivet member 41 is fixed, and the slide rail 11 is locked so that it cannot move.

The outer shape of the engaging portion 41e when the slit 41c is closed is the cutout portions 1e, 11a, 2 of the bottom plate 1c, the slide rail 11, and the guide plate 22.
It is configured so that it can be inserted through 2b.
That is, the rivet member 41 can be removed from the notches 1e, 11a, 22b when the slit 41c is closed. Insert the rivet member 41 into the cutouts 1e, 11
Slide rail 1 by removing from a and 22b
The locked state of 1 is released.

A guide member 42 made of steel is fixed above the guide plate 22 by welding or the like. The guide member 42 is the slit 4 of the rivet member 41.
1c is in a closed state.

The guide member 42 has a pair of opposed standing portions 42a.
As shown in FIG. 9, the distance D between the upright portions 42a is substantially the same as the outer shape of the collar 41d, that is, the width D of the cutout portions of the bottom plate 1c, the slide rail 11, and the guide plate 22 is smaller than that of the collar 41d. It is formed to be slightly smaller.

The engaging portion 41e of the rivet member 41 is rotated while being guided by the wall portion between the upright portions 42a of the guide member 42. The rivet member 41 includes the knob portion 4
It is rotated by twisting 1a. Rivet member 41
When the rivet member 41 is rotated,
e engages with the upright portion 42a, and changes to a state in which the slit 41c is closed, as shown in FIG.

As a result, the outer shape of the engaging portion 41e is such that the bottom plate 1c, the slide rail 11, and the notches 1e, 11a, 22b of the guide plate 22 can be inserted, and the rivet member 41 can be pulled out. Become. Then, by pulling out the rivet member 41,
The lock of the slide rail 11 is released, and the slide rail 11 becomes movable.

When the slide rail 11 is unlocked, the backrest 2 is moved so that the backrest 2 is adjusted to a position suitable for the driver. Then, when the optimum position of the backrest 2 is determined, the rivet member 41 is attached to the notch 1e provided in the bottom plate 1c of the rear seat 1b, the notch 11a of the slide rail 11, and the notch 22b of the guide plate 22. To penetrate. The rivet member 41 enters each notch from the tip of the engaging part 41e and is inserted while closing the slit 41c.

The engaging portion 41e and the shaft portion 41b of the rivet member 41 are composed of the bottom plate 1c, the slide rail 11,
It penetrates through the guide plate 22 and is inserted to above the guide plate 22. When the engaging portion 41e is exposed on the guide plate 22, the slit 41c is expanded and fixed by the repulsive force of the resin.

When locking the slide rail 11, the rivet member 41 is inserted in a predetermined direction. That is, after the rivet member 41 is provided, the slit 41c is inserted in the guide member 42 in a direction in which it can be expanded. The direction in which the slit 41c can be expanded after being installed means that the slit 41c is the guide member 4 when viewed from above the vehicle body.
This is a direction that forms a substantially right angle with the second standing portion 42a.

In order to insert the rivet member 41 in the direction to be surely locked, the notch 1e of the bottom plate 1c.
It is also possible to adopt a configuration in which characters as shown in FIG. The letters "ROCK" in the locked state and "FREE" in the unlocked state indicate the bottom plate 1c.
Stamped on.

When the backrest 2 is fixed at a predetermined position by adding the above characters, the knob portion 41a of the rivet member 41 is inserted in alignment with the "ROCK" position. Also, when you want to change the position of the backrest 2,
The knob portion 41a of the rivet member 41 is rotated until it reaches the "FREE" position, and the rivet member 41 is pulled out.
Therefore, if the knob portion 41a is formed flat as in the present example, it is easy to determine the insertion direction of the rivet member 41, which is preferable.

(Third Embodiment) FIGS. 12 to 17 show still another embodiment of the movement restricting means. In this example, the same members and the like as those in the above-described example are designated by the same reference numerals and the description thereof will be omitted. FIG. 12 is an explanatory view showing the movement restricting means according to the third embodiment, FIG. 13 is an explanatory view showing the movement restricting means according to the third embodiment and its essential parts, and FIG. 14 is a movement restricting means according to the third embodiment. FIG. 15 is a sectional view showing a state where the slide rail is locked by FIG. 15, FIG. 15 is a sectional view showing a state where the slide rail is unlocked by the movement restricting means according to the third embodiment, and FIG. 16 is a movement according to the third embodiment. FIG. 17 is a top view of the regulating means, and FIG. 17 is an enlarged view of a main part of FIG.

In the embodiment shown in FIGS. 12 to 17, the rivet member 5 is used as the movement restricting means 50 of the slide rail 11.
1 is used, and the rivet member 51 is configured so as not to be removable. The rivet member 51 of this example is shown in FIG.
As shown in FIG. 2, the bottom plate 1c of the rear seat 1b, the slide rail 11, and the guide plate 22 that constitutes the guide mechanism 20 of the slide rail 11 are disposed so as to penetrate therethrough.

In this example, as shown in FIG. 14, the bottom plate 1c is provided with a notch 1e having the same shape as the notch 11a of the slide rail 11, and the guide plate 22 is provided with a notch 22b smaller than that. Is provided.

Like the second embodiment, the guide plates 22 of this embodiment are not long and are arranged above the respective slide rails 11. The guide plate 22 is
It is held by a claw portion 1d provided on the bottom plate 1c.

The rivet member 51 is a ring member 51a.
A head 51b, a first shaft 51c, and a second shaft 5
1d, and is comprised. Further, the second shaft portion 51d of the rivet member 51 is formed with an engaging portion with a positioning member described below.

The first shaft portion 51c of the rivet member 51 is
Notch 1e of bottom plate 1c and slide rail 1
It is configured to be fitted and fixed in one notch 11a. In addition, the second shaft portion 51d is similar to that shown in FIGS.
As shown in, when fitted to the cutout portion 1e of the bottom plate 1c and the cutout portion 11a of the slide rail 11, while being retained by the cutout portion 22a of the guide rail 22, the cutout portion 11a of the slide rail 11 extends in the longitudinal direction. It is configured to be able to move to.

If the size of the second shaft portion 51d is smaller than that of the hole 11b of the cutout portion 11a and is substantially the same as that of the constricted portion 11c, then the second shaft portion 51d.
Is suitable because it can be moved with a click feeling in the cutout portion 11a of the slide rail 11.

As shown in FIG. 12, the second shaft portion 51d is provided with two engaging portions. Of the engaging portions, the first engaging portion 51e formed on the head portion 51b side is such that the side located on the end portion side is inclined toward the end portion side,
The side located on the head 51b side is formed to be horizontal. In addition, the second engaging portion 5 formed on the end side
1f is formed such that the side located on the end side is horizontal and the side located on the head 51b side is inclined toward the head 51b side.

The first engaging portion 51e is the first engaging portion 51e.
The distance from e to the base of the head 51b of the rivet member 51 is configured to be slightly smaller than the total thickness of the bottom plate 1c, slide rail 11, and guide plate 22.

The distance between the first engaging portion 51e and the second engaging portion 51f is configured to be larger than the thickness of the slide rail 11.

The first engaging portion 51e and the second engaging portion 51f are
The rod 52, which is a positioning member of the rivet member 51, is configured to be engaged. The rod 52 is made of elastic steel wire, for example, a piano wire. As shown in FIG. 16, the rod 52 is installed at the position of the notch 22b of the guide plate 22.
The rod 52 is welded and fixed to the guide plate 22,
It is held by a rod bracket 52a made of steel.

When the rod 52 is engaged with the first engaging portion 51e of the engaging portion of the rivet member 51, the first shaft portion 51c of the rivet member 51 is cut into the cutout portion of the bottom plate 1c. 1e and the cutout portion 11a of the slide rail 11 are fitted to each other, so that the slide rail 11 is locked.

At this time, the distance from the first engaging portion 51e to the root of the head portion 51b of the rivet member 51 is determined by the bottom plate 1c, the slide rail 11, and the guide plate 2.
Since the thickness is slightly smaller than the total thickness of the two, the rivet member 51 is reliably fixed with a biasing force.

Of the engaging parts of the rivet member 51,
When the rod 52 is engaged with the second engaging portion 51f, the rivet member 51 has the first engaging portion 51e and the second engaging portion 51e.
Since it moves by a distance between f, that is, a distance larger than the thickness of the slide rail 11, the first shaft portion 51c of the rivet member 51 is disengaged from the cutout portion 11a of the slide rail 11, and the slide rail 11 can slide. It will be in a state.

With the movement restricting means having the above structure, the movement of the slide rail 11 can be controlled and the backrest 2 can be adjusted to the optimum position for the driver. Less than,
The position adjusting operation of the backrest 2 will be described.

When releasing the locked state of the slide rail 11, the ring member 51a of the rivet member 51 is pulled downward. When the slide rail 11 is in the locked state, the rod 52 is engaged with the first engaging portion 51e of the engaging portions provided on the shaft portion of the rivet member 51. By being pulled downward, the rod 52 moves to the second engaging portion 51f.

That is, since the first engagement portion 51e is formed so that the side located on the end side is inclined upward, the rivet member 51 is pulled downward to extend along the upper side. And the rod 52 disengages, and the rod 52 moves to the second engaging portion 51f.

As a result, the first shaft portion 51c is disengaged from the cutout portion 11a of the slide rail 11, and the slide rail 1
1 is in a slidable state. The second engaging portion 5
Since the upper side of 1f is notched horizontally, the rod 52
The rivet member 51 is held in the unlocked position without being removed.

When the slide rail 11 is unlocked, the slide rail 11 is slid to move the backrest 2 so that the backrest 2 is adjusted to a position suitable for the driver. Then, when the optimum position of the backrest 2 is determined, the rivet member 51 is pushed.

When the rivet member 51 is pushed in, the second
The rod 52 that has been engaged with the engaging portion 51f moves to the first engaging portion 51e. That is, the second engaging portion 5
Since 1f is formed so that the lower side is inclined downward, when the rivet member 51 is pushed in, the rod 52 is disengaged along the lower side and the rod 52 moves to the first position.
Moves to the engaging portion 51e of. As a result, the first shaft portion 51c engages with the cutout portion 11a of the slide rail 11,
The slide rail 11 is locked so that it cannot slide.

The rivet member 51 of this example is preferably made of metal. This is formed in a thin shape in which the second shaft portion 51d of the rivet member 51 can pass through the cutout portion 11a of the slide rail 11, and the second shaft portion 51d is engaged with the rod 52 so as to engage with the rod 52. This is because the parts are provided at two locations, and therefore the rigidity of the second shaft part 51d can be secured by making the rivet member 51 from metal.

Although the rivet member 51 is not removable in this example, it goes without saying that the rivet member 51 may be provided with only the first engaging portion 51e so that the rivet member can be removed.

(Fourth Embodiment) FIGS. 18 to 23 show still another embodiment of the movement restricting means. In this example, the same members and the like as those in the above-described example are designated by the same reference numerals and the description thereof will be omitted. FIG. 18 is a sectional view showing a state where the slide rail is locked by the movement restricting means according to the fourth embodiment, and FIG. 19 is a sectional view showing a state where the slide rail is unlocked by the movement restricting means according to the fourth embodiment. 20, FIG. 20 is an exploded perspective view of the movement restricting means according to the fourth embodiment, FIG. 21 is a sectional view taken along line EE of FIG. 18, and FIG. 22 is FF of FIG.
FIG. 23 is a sectional view showing a modification of the movement restricting means according to the fourth embodiment.

The movement restricting means 60 of this embodiment includes a plate 61 having a protrusion 61a that engages with the notch 11a of the slide rail 11, a cam 62 that engages with the plate 61, and a knob 63 that rotates the cam 62. ,,.

The plate 61 is made of a steel plate, and as shown in FIGS. 18 and 20, the cutout portion 11 of the slide rail 11 is formed.
The bracket 64 is provided with a protrusion 61a that engages with a.
And is attached to the bottom plate 1c.
The plate 61 is provided with a shaft portion 61b, and as shown in FIG. 22, the shaft portion 61b is rotatably held by a bracket 64, whereby the projection 61a is configured to be movable upward and downward.

[0097] Two bulges on the back side of the plate 61
Section is provided. This bulging portion is formed by a cam 62 described below.
It engages with the projection 62a. Expansion of plate 61
One of the protrusions is between the two protrusions 61a of the plate 61.
Provided (hereinafter referred to as "first bulging portion 61c")
U). The other bulge is the first bulge 6
1c is provided on the opposite side of the axis line of the shaft portion 61b.
(Hereinafter, referred to as “second bulging portion 61d”).

[0098] Between the plate 61 and the bottom plate 1c
Is provided with a resin cam 62. The cam 62 has
Protrusions 62a are provided on the surface facing the plate 61 side.
The protrusion 62a is formed by the protrusions 61c and 61d of the plate.
Is configured to engage with. The protrusion 62a is shown in FIG.
The plate 61 has a swelling surface as shown in FIG.
It is structured so that it can be smoothly engaged with the portions 61c and 61d.
Is made.

A flat portion may be formed on the upper surface of the protrusion 62a of the cam 62. By forming the flat surface portion, the flat surface portion stably engages with the bulging portions 61c and 61d of the plate 61, and the self-locking effect can be obtained.

As shown in FIG. 23, by providing a projection 62b on the back surface of the cam 62 and providing a recess for engaging the projection 62b of the cam 62 on the bottom plate 1c engaging with the back surface of the cam 62, When the cam 62 is rotated, the projection 62b and the recess of the bottom plate are engaged or disengaged, and it becomes possible to perform switching between the locked state and the unlocked state with a click feeling.

As shown in FIG. 21, a resin knob 63 is connected to the cam 62 via a screw member 65.
Then, the cam 62 can be rotated by operating the knob 63. The knob 63 has a knob 6
The bottom plate 1c is arranged so that 3a faces downward of the vehicle body.

With the movement restricting means 60 having the above structure, the movement of the slide rail 11 can be controlled and the backrest 2 can be adjusted to the optimum position for the driver. Hereinafter, the position adjusting operation of the backrest 2 will be described.

FIG. 18 shows a state in which the slide rail 11 is locked so that it cannot slide. That is, as shown in FIG. 18, in the locked state, the cam 6
The second protrusion 62a is the second protrusion 61d of the plate 61.
Is engaged with.

The projection 62a of the cam 62 engages with the second bulging portion 61d of the plate 61, whereby the plate 61
The side where the protrusion 61a is not formed is lifted, the protrusion 61a is engaged with the notch 11a of the slide plate 11, and the movement of the slide rail 11 is restricted.

To unlock the slide rail 11, the knob 63 is rotated. Then, the protrusion 6 of the cam 62
2a engages with the first bulging portion 61c of the plate 61, and the side of the plate 61 on which the protrusion 61a is formed is pushed upward. Then, the notch 1 of the slide rail 11
The protrusion 61a engaged with 1a is disengaged, and the slide rail 11 can be slid.

When the slide rail 11 is unlocked, the backrest 2 is moved so that the backrest 2 is adjusted to a position suitable for the driver. Then, when the optimum position of the backrest 2 is determined, the knob 63 is rotated and the protrusion 62a of the cam 62 is engaged with the second bulging portion 61d of the plate 61 to bring it into a locked state.

In this example, the elasticity of the cushion material 3 is used to impart elasticity to the movement of the plate 61. That is, when the lock of the slide rail 11 is released, the side of the plate 61 on which the protrusion 61a is provided is lifted upward. At this time, as shown in FIG. 19, the cushion of the rear seat 1b located on the plate 61 is lifted. The material 3 is pressed by the plate 61 and deforms.

Then, when the slide rail 11 is locked again, the projection 62a of the cam 62 is moved to the first position of the plate 61.
The plate 61 is released from the bulging portion 61c and returns from the pushed-up state to the original state. As a result, the force pushing up the cushion material 3 is also released, and the cushion material 3 returns to its original shape. Then, the plate 61 is pushed down by the repulsive force that causes the cushion material 3 to return to its original shape, and the projection 61a of the plate 61 is engaged with the notch 11a of the slide rail 11 with a pressing force. Although the cushion member 3 is used in this example, the present invention is not limited to this as long as the elastic force can be applied to the plate 61, and springs may be provided at both ends of the plate 61, for example.

(Fifth Embodiment) FIGS. 24 and 25 show still another embodiment of the movement restricting means. In this example, the same members and the like as those in the above-described example are designated by the same reference numerals and the description thereof will be omitted. FIG. 24 is an explanatory view showing the movement restricting means according to the fifth embodiment, and FIG. 25 is a modification of the movement restricting means according to the fifth embodiment.

The slide rail movement restricting means 70 shown in FIGS. 24 and 25 is a lock bracket 7 made of steel.
1 and a resin lever 72 for moving the lock bracket 71. The lock bracket 71 includes a plate-shaped spring portion 71a and the spring portion 71a.
Has a protrusion 71b provided at the tip of the
Is configured to engage the notch 11a of the slide rail 11 to lock the slide rail 11.

The lever 72 has an engaging portion 72a for engaging the lock bracket 71 and a curved gripping portion 72b. The lever 72 is made of, for example, polyacetal resin as a material having abrasion resistance and abrasion resistance. When the lever 72 is in the G position, the engagement portion 72a pushes the spring portion 71a of the lock bracket 71 upward. The lock bracket 71 is moved upward and the spring portion 7
The projection 71b provided at the tip of the la is biased and engaged with the hole 11b of the cutout portion 11a provided in the slide rail 11, and the slide rail 11 is locked.

At this time, the engaging portion 72a and the lock bracket 71 are engaged with each other with an appropriate pressing force so that the engaging portion 72a of the lever 72 and the lock bracket 71 are reliably engaged. It is preferable to form a flat surface on the top of the engaging portion 72a because a stable self-locking effect can be obtained when engaging with the lock bracket 71.

When the lever 72 is moved to the H position, the engagement between the engaging portion 72a of the lever 72 and the lock bracket 71 is released, and the lock bracket 71 moves downward.
As a result, the protrusion 71b of the lock bracket 71 is disengaged from the cutout portion 11a of the slide rail 11, and the lock of the slide rail 11 is released.

As shown in FIG. 24, the lever 72 is provided with a non-slip portion 72 for improving operability.
c is provided. It should be noted that the lever 72 is formed in a shape that does not greatly protrude downward in the locked state so as not to interfere with the storage portion formed on the vehicle body side.

The lever may have the shape shown in FIG. The lever 73 of FIG. 25 is not curved like the lever 72 shown in FIG. 24, and has a simpler configuration. The lever 73 shown in FIG. 25 has an engaging portion 73a.
Is located below the projection 71b of the lock bracket 71. This ensures the length of the grip portion 73b.

Further, the grip portion 73b of the lever 73 is formed so as to be curved slightly downward so that a space is secured between the grip portion 73b and the lock bracket 71, and when the lever 73 is operated, a hand is put on the lever 73. It is designed to be easy to call.

(Sixth Embodiment) FIGS. 26 to 30 show still another embodiment of the movement restricting means. In this example, the same members and the like as those in the above-described example are designated by the same reference numerals and the description thereof will be omitted. 26 is an explanatory view showing the movement restricting means according to the sixth embodiment, FIG. 27 is a sectional view taken along the line KK of FIG.
8 is an LL sectional view of FIG. 26, FIG. 29 is an MM sectional view of FIG. 26, and FIG. 30 is a perspective view showing a slide rail.

26 to 30 show an example in which the lock plate 81 is used as the movement restricting means of the slide rail. In this example, as shown in FIG. 30, the slide rail 11 has a side surface provided with a cutout portion 11 a with which the lock plate 81 can be engaged. And notch 1
The lock plate 81 engages with the slide rail 1a.
1 is configured to be in a slidable state or a non-sliding locked state. The slide rail 11 is
At least the cutout portion 11a is arranged on the bottom plate 1c so as to be exposed on the back surface of the bottom plate 1c.

Not only the side surface of the slide rail 11 but also the bottom plate 1c for holding the slide rail 11 are provided with cutouts which are aligned with the cutouts 11a of the slide rail 11, and the lock plate 81 is provided in these cutouts. The slide rails 11 may be engaged with each other to make the slide rail 11 slidable or locked so as not to slide.

The movement restricting means 80 of this embodiment comprises a lock plate 81 and a rotary knob 82 for operating the movement of the lock plate 81. As shown in FIG. 26, the lock plate 81 is made of a steel plate, and is formed in a shape in which the tip side is thin, and is connected to the rotary knob 82 via a movable pin 81a as a connecting member.

The lock plate 81 is held by the guide member 81b. As shown in FIG. 29, the guide member 81b is provided on the bottom plate 1c, and is arranged so as to hold the lock plate 81 from both sides.

The rotary knob 82 is a steel base plate 8
As shown in FIG. 28, it is attached to the back surface side of the bottom plate 1c by bolts and insert nuts via the base plate 82a. The rotation knob 82 is made of resin, and has a knob portion 82b for rotating the rotation knob 82, an arc-shaped slit 82c of a predetermined length that engages with the movable pin 81a of the lock plate 81,
A spring member 82d for holding the rotation knob 82 at the reference position,
It is configured with. The rotary knob 82 has a knob 8
2b is attached to the bottom plate 1c with the vehicle body lower side.

The spring member 82d is arranged around the axis of rotation and is configured to be deformed by twisting the rotary knob 82. Therefore, when the knob is released, the rotary knob 82 is configured to return to its original position by the restoring force of the spring.

The arcuate slit 82c is provided on the surface of the rotary knob 82 facing the bottom plate 1c. A pair of arcuate slits 82c are provided so as to face each other, and the movable pin 81a of the lock plate 81 is engaged.

The movements of the arcuate slit 82c and the lock plate 81 will be described with reference to FIGS. When the rotary knob 82 is rotated, the arc-shaped slit 8
2c moves from the I position to the J position. Then, the movable pin 81a of the lock plate 81 is moved to the arcuate slit 82c.
And moves in a direction away from the slide rail 11.

The lock plate 81 is pulled by the movable pin 81a and retracts in the direction away from the slide rail 11. Then, the end portion of the lock plate 81 is disengaged from the cutout portion 11 a of the slide rail 11. This allows the slide rail 11 to freely slide.

When the slide rail 11 is slidable, the backrest 2 is adjusted to the optimum position. Then, when the optimum position of the backrest 2 is determined, the force applied to the rotary knob 82 is released.

Since the rotating knob 82 is provided with the spring member 82d, the rotating knob 82 is returned to the original state by the force of the spring member 82d trying to return to the original state. At this time, the movable pin 81a of the lock plate 81 moves toward the slide plate 11 along the arcuate slit 82c,
The lock plate 81 is the cutout portion 11 of the slide rail 11.
It is engaged with a and is in a locked state.

To facilitate the operation of the rotary knob 82, the characters "open" and "closed" may be attached near the rotary knob 82 as shown in FIG.
"Open" indicates the unlocked state, and "closed" indicates the locked state. By adding the above characters, it is possible to prevent erroneous operations such as rotating the rotary knob 82 in the wrong direction.

(Seventh Embodiment) FIGS. 31 to 36 show still another embodiment of the movement restricting means. In this example, the same members and the like as those in the above-described example are designated by the same reference numerals and the description thereof will be omitted. 31 is an explanatory view showing the movement restricting means according to the seventh embodiment, FIG. 32 is a sectional view showing the movement restricting means according to the seventh embodiment, FIG. 33 is a sectional view taken along line NN of FIG.
4 is an explanatory view showing a method of disposing a steel wire member, FIG. 35 is an explanatory view showing a method of disposing a steel wire member, and FIG. 36 is a perspective view showing a slide rail.

31 to 36 show the slide rail 11
An example in which a steel wire member 91 is used as the movement restricting means 90 of FIG. In this example, as shown in FIG. 36, the slide rail 11 is provided on its side surface with a narrow notch portion 11a capable of engaging with the steel wire member 91.

In this example, the steel wire member 91 attached to the bottom plate 1c is positioned close to the bottom plate 1c, and the steel wire member 9 is provided in the notch 11a of the slide rail 11.
1 is engaged to bring the slide rail into a non-slidable locked state, or the bottom plate 1c is connected to the steel wire member 9
1 is separated, the steel wire member 91 is removed from the notch 11a, and the slide rail 11 is made slidable.

As shown in FIG. 31, the steel wire member 91 is bent and formed in a staircase shape so as to be symmetrical. The steel wire member 91 includes an end 91a and an end 9
The torsion spring 91b is continuous with 1a and the grip 91c is continuous with the torsion spring 91b.

The steel wire member 91 has a recessed groove portion 9 provided along the shape of the steel wire member 91 on the back surface of the bottom plate 1c.
2 are arranged. The steel wire member 9 of the groove 92 is
In the portion of the concave groove portion 92 where the first end portion 91a is arranged, the distance between the facing concave groove portions 92 is larger than the distance between the end portions 91a of the steel wire member 91 in the state where no special force is applied. It is provided to be slightly shorter. As a result, the steel wire member 91 is held with appropriate elasticity on the back surface of the bottom plate 1c.

As shown in FIGS. 34 and 35, the steel wire member 91 is attached to the bottom plate 1c so that the end 91a side is bent inward. As described above, by disposing the steel wire member 91 while bending it, an elastic force is generated in the steel wire member 91, and the end portion 91a of the steel wire member 91 is pressed against the wall portion of the recessed groove portion 92 of the bottom plate 1c. Be delivered securely.

A part of the end 91a of the steel wire member 91 is shown in FIG.
1, the bottom plate 1c is held by a holding portion 93 provided on the bottom plate 1c so as not to be exposed to the outside.
The steel wire member 91 is configured not to fall off due to the movement or impact of the backrest 2. A rib 94 projects from the bottom plate 1c at a position between the end portion 91a and the torsion spring portion 91b.
The steel wire member 91 is held by 4.

Torsion spring portion 9 of steel wire member 91
In the portion where 1b is disposed, the bottom plate 1c is provided with an elongated hole 95, and as shown in FIG. 33, the torsion spring portion 91b engages with the cutout portion 11a of the slide rail 11 disposed on the bottom plate 1c. It is configured to be compatible.

As a result, the torsion spring portion 91
b can be engaged with the notch 11a of the slide rail 11 arranged on the bottom plate 1c. The steel wire member 91 is arranged while being bent by the bottom plate 1c as described above, and the torsion spring portion 91b is provided.
Is pressed by the elastic force of the steel wire member 91 to the cutout portion 11a of the slide rail 11 and is reliably engaged. In this way, the slide rail 11 is locked.

The torsion spring portion 91b is
As shown in FIG. 32, by pulling the grip portion 91c downward, the grip portion 91c is disengaged from the cutout portion 11a of the slide rail 11 and separated from the slide rail 11. As a result, the lock of the slide rail 11 is released.

As shown in FIG. 32, the grip portion 91c
The concave groove portion 92 in which the
By providing the grip deeper than 2, it is possible to allow a space between the grip 91c and the inner surface of the groove 92, and it becomes easier to put a finger on the grip 91c, so that the lock and unlock operations can be performed more smoothly. It becomes possible to

(Eighth Embodiment) FIGS. 37 to 40 show still another embodiment of the movement restricting means. In this example, the same members and the like as those in the above-described example are designated by the same reference numerals and the description thereof will be omitted. 37 is an explanatory view showing the movement restricting means according to the eighth embodiment, FIG. 38 is a sectional view taken along line OO of FIG. 37, and FIG.
9 is a P-P sectional view of FIG. 37, and FIG. 40 is a Q-Q sectional view of FIG.

37 to 40 show the slide rail 11
As an example of the movement restricting means 100, a lock plate that engages with the cutout portion 11a of the slide rail 11 and the cutout portion of the bottom plate 1c and restricts the movement of the slide rail is used.

[0143] In this example, as shown in FIG.
The lock plate 101 can be engaged with the side surface of the rail 11.
A notch 11a is provided. Also this slide
The bottom plate 1c that holds the rails 11 also has a slider.
At the position aligned with the notch 11a of the drail 11, the notch
Is provided.

[0144] Then, the cutout portion 11 of the slide rail 11
a and the lock plate 101 in the cutout portion of the bottom plate.
And the slide rail 11 is slidable.
It is configured so that it cannot slide and is locked.
It

As shown in FIG. 37, the lock plate 101 is formed in a substantially dogleg shape in which the tip portion 101a projects outward. And the two lock plates 10
1 is connected by a rivet 102 in a V shape. At this time, the bent portions 101b of the two lock plates 101
Are opposed to each other and the tip portions 101a are on the outside.

The two lock plates 101 are connected by an opening spring 103 on the expansion side.
The opening spring 103 biases the two lock plates 101 in the opening direction, and
1 is configured to open and close with elasticity by the opening spring 103.

The lock plate 101 is a tension member 104.
Are linked to. The tension member 104 is the ring-shaped portion 10.
4a. As shown in FIG. 38, the ring-shaped portion 104a is formed by forming a hole 104b in the tension member 104 and applying a resin coating 104c to the edge portion of the hole 104b. This ring-shaped portion 104
It is configured such that a finger can be put on a and pulled.

The tension member 104 is arranged on the back surface side of the bottom plate 1c of the rear seat 1b, but the ring-shaped portion 1
In the vicinity of the position of 04, as shown in FIG. 38, a recess is provided in the bottom plate 1c, and the ring-shaped member 10
When a finger is put on 4 and pulled, the finger can be easily put.

The pulling member 104 is held by the guide member 105. As shown in FIG. 39, the guide member 105 is provided on the bottom plate 1c and is arranged along the sliding direction of the tension member 104 so as to surround the tension member 104 from both sides.

In this example, the guide member 105 is formed by providing ribs on the bottom plate 1c. However, instead of this structure, the guide member 105 is formed as a separate member and the bottom plate 1c is formed separately. It may be configured to be attached to.

FIG. 40 shows the lock plate 101
It shows a state in which the slide rail 11 is locked so that it cannot slide. That is, in the locked state, the front end portion 101a of the lock plate 101 is engaged with the cutout portion 11a of the slide rail 11 and the cutout portion formed in the bottom plate 1c holding the slide rail 11.

The lock plate 101 has an opening spring 10
Since 3 is provided, it is engaged with the notch of the slide rail 11 and the notch of the bottom plate 1c with a biasing force. Further, since the lock plate 101 is formed in a substantially V shape and is connected so that the bent portions 101b of the two lock plates 101 face each other and the tip portion 101a is on the outer side, the backrest is formed. Even if a pressing force is applied to the driver 2 from the driver's side, it does not move further rearward and enters the locked state.

In the locked state, the tension member 10
By pulling 4, the locked state of the slide rail 11 can be released. That is, the tension member 1
When 04 is pulled and moves, the lock plate 101 connected to the pulling member 104 also moves in the moving direction of the pulling member 104.

The lock plate 101 includes the tension member 10
It moves by being pulled by 4, and contacts the guide member 105. Then, the lock plate 101 enters between the guide members 105, is sandwiched by the guide members 105, and is in a closed state. By closing the lock plate 101,
The tip portion 101a of the lock plate 101 is disengaged from the cutout portion 11a of the slide rail 11 and the cutout portion 106 of the bottom plate 1c.

When the tip 101a of the lock plate 101 is removed from the notch, the slide rail 11 can slide. As a result, it becomes possible to adjust the backrest 2 so as to be in a position suitable for the driver.

When the optimum position of the backrest 2 is determined, the pulling force on the pulling member 104 is released.
As a result, the lock plate 101 is pulled out from between the guide portions 105 while being opened by the restoring force of the opening spring 103. Then, the tip portion 101a of the lock plate 101
Are engaged with the cutout portion 11a of the slide rail 11 and the cutout portion 106 of the bottom plate 1c. In this way, the slide rail 11 is locked again.

In the above structure, the guide member 105 is not provided as a mechanism for releasing the locked state, but the two lock plates 101 are assembled so as to intersect with each other, and the side on which the opening spring 103 is arranged is The configuration may be such that the opposite side can be opened and closed. By opening and closing the side opposite to the side on which the opening spring 103 is provided, the tip portion 101a of the lock plate 101 can be opened and closed, and the locked state and the unlocked state can be switched.

As described above, according to the motorcycle seat S of the present invention, the back rail 2 is adjusted to the optimum position for the driver by sliding the slide rail 11 on the bottom plate 1c. You can

Further, the movement restricting means of the slide rail 11 is provided for fixing the backrest 2 at a predetermined position. However, the movement restricting means of the present invention is provided with the cutout portion 11a provided in the slide rail 11. It is configured so as to be urged and engaged with, and the urging force can be used to lock or unlock with one touch without using a tool or the like. Therefore, anyone can easily adjust the position of the backrest 2.

Further, the bottom plate 1c of the seat S for a motorcycle according to the present invention is formed as a single piece, and the slide rail 11 of the backrest 2 moves on the bottom plate 1c of the rear seat 1b. Therefore, even if the backrest is movable, it does not hinder the mechanism for opening and closing the motorcycle S seat S on the vehicle body, and the storage unit is provided below the motorcycle S seat S as a lid. Can be provided.

[0161]

As described above, according to the seat for a motorcycle having the movable backrest of the present invention, the position of the backrest can be adjusted according to the physique of the driver, which is more comfortable. It becomes possible to drive.

Further, a movement regulating means for regulating the movement of the sliding member is urged and engaged with the sliding member which makes the backrest movable, and the urging force is utilized to lock or lock with one touch. Since the lock can be released, anyone can easily adjust the position of the backrest without using a special tool when adjusting the position.

Also in the manufacturing process, since the backrest and the sliding member can be attached by one-touch by the movement restricting means, the assembling can be simplified and the cost can be reduced. Further, since the hollow slide rail is used as the sliding member and the bottom plate of the seating portion is used as the guide mechanism of the sliding member, the increase in weight due to the increase in the members can be minimized.

Furthermore, since the sliding member that allows the backrest to move and the movement restricting means that restricts the movement of the sliding member are disposed on the bottom plate of the seating portion, the storage member provided on the vehicle body side is provided. A motorcycle seat can be opened and closed on the vehicle body as a lid of the section.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a seat for a motorcycle according to the present invention.

FIG. 2 is a partial cross-sectional view of the motorcycle seat including the movement restricting means according to the first embodiment.

FIG. 3 is an explanatory view showing a movement restricting means according to the first embodiment.

4 is a cross-sectional view taken along the line AA of FIG.

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

FIG. 6 is an explanatory view showing a movement restricting means according to a second embodiment.

FIG. 7 is a sectional view taken along line CC of FIG.

FIG. 8 is a front view, a top view, and a side view of a rivet member according to a second embodiment.

FIG. 9 is an explanatory view showing the operation of the rivet member according to the second embodiment.

FIG. 10 is an explanatory diagram showing characters attached to the bottom plate.

FIG. 11 is an explanatory diagram showing a method of forming a rivet member according to the second embodiment.

FIG. 12 is an explanatory view showing a movement restricting means according to a third embodiment.

FIG. 13 is an explanatory diagram showing a movement restricting means and a main part thereof according to a third embodiment.

FIG. 14 is a sectional view showing a state in which the slide rail is locked by the movement restricting means according to the third embodiment.

FIG. 15 is a cross-sectional view showing a state in which the slide rail is unlocked by the movement restricting means according to the third embodiment.

FIG. 16 is a top view of the movement restricting means according to the third embodiment.

FIG. 17 is an enlarged view of a main part of FIG.

FIG. 18 is a cross-sectional view showing a state where the slide rail is locked by the movement restricting means according to the fourth example.

FIG. 19 is a cross-sectional view showing a state where the slide rail is unlocked by the movement restricting means according to the fourth example.

FIG. 20 is an exploded perspective view of the movement restricting means according to the fourth embodiment.

21 is a sectional view taken along line EE in FIG.

22 is a cross-sectional view taken along the line FF of FIG.

FIG. 23 is a modification of the movement restricting means according to the fourth embodiment.

FIG. 24 is an explanatory view showing a movement restricting means according to the fifth embodiment.

FIG. 25 is a modification of the movement restricting means according to the fifth embodiment.

FIG. 26 is an explanatory diagram showing a movement restricting means according to the sixth embodiment.

27 is a sectional view taken along line KK of FIG. 26.

28 is a sectional view taken along line LL in FIG. 26.

FIG. 29 is a sectional view taken along line MM in FIG. 26.

FIG. 30 is a perspective view showing a slide rail.

FIG. 31 is an explanatory diagram showing a movement restricting means according to the seventh embodiment.

FIG. 32 is a sectional view showing a movement restricting means according to the seventh embodiment.

FIG. 33 is a sectional view taken along line NN of FIG. 32.

FIG. 34 is an explanatory diagram showing a method of disposing a steel wire member.

FIG. 35 is an explanatory diagram showing a method of disposing a steel wire member.

FIG. 36 is a perspective view showing a slide rail.

FIG. 37 is an explanatory diagram showing a movement restricting means according to the eighth embodiment.

38 is a cross-sectional view taken along line OO of FIG.

FIG. 39 is a sectional view taken along line P-P of FIG. 37.

FIG. 40 is a QQ sectional view of FIG. 37.

[Explanation of symbols]

1 Seating Part 1a Front Seat 1b Rear Seat 2 Backrest 3 Cushion Material 11 Slide Rail 11a Notch 20 Guide Mechanism 21 Rail Part 22 Guide Plate 30, 40, 50, 60, 70, 80, 90, 100
Movement restricting means 31 Protrusion 32 Positioning plate 33 Spring member 34 Knob 41 Rivet member 41a Knob portion 41b Shaft portion 41c Slit 41d Collar 41e Engaging portion 42 Guide member 42a Standing portion 51 Riveting member 51a Ring member 51b Head portion 51c First Shaft portion 51d Second shaft portion 51e First engaging portion 51f Second engaging portion 52 Rod 52a Rod bracket 61 Plate 61a Projection 61b Shaft portion 61c First bulging portion 61d Second bulging portion 62 Cam 62a protrusion 63 knob 63a knob portion 64 bracket 65 screw member 71 lock bracket 71a spring portion 71b protrusions 72, 73 lever 72a engagement portion 72b grip portion 81 lock plate 81a movable pin 81b guide member 82 rotation knob 82a base plate 82b knob portion 82c circle Arc slit 2d Spring member 91 Steel wire member 91a End part 91b Torsion spring part 91c Grip part 92 Recessed groove part 93 Holding part 94 Rib 95 Long hole 101 Lock plate 101a Tip part 101b Bend part 102 Rivet 103 Open spring 104 Pulling member 105 Guide member 106 Bottom Plate notch

Claims (12)

[Claims] 1. A seat for a motorcycle comprising a seating portion and a movable backrest on the rear side of the seating portion, wherein the movable backrest supports a back surface of the movable backrest and extends toward the seating portion side. A sliding member for projecting is provided, the sliding member is provided with a notch along the longitudinal direction, the sliding member is provided with movement restricting means for restricting movement, and the movement restricting means is provided with the notch. A seat for a motorcycle comprising a movable backrest, characterized in that the seat includes a fitting member that is urged to the portion. 2. The movement restricting means includes at least a protrusion that can be fitted into the cutout portion, a holding portion that holds the protrusion and is connected to the seating portion side, and the holding portion to the cutout portion side. The seating with a movable backrest according to claim 1, further comprising: a spring member that urges the spring member; and an operation portion that separates the holding portion from the cutout portion against the urging force of the spring member. Sheet. 3. The movement restricting means is provided with a slit from a tip end side toward a root side, a rivet member inserted from the seating side and fitted in the notch, and narrower than the notch. And a standing portion that engages with the rivet member, and the rivet member is arranged so as to spread from the slit and urged by the notch, and at least the slit of the rivet member is provided. The seating with a movable backrest according to claim 1, wherein the slit is closed by engaging a portion not included with the upright portion so that the rivet member can be inserted through the cutout portion. Sheet. 4. The movement restricting means includes a rivet member that has a head portion and a shaft portion and that is inserted from the seating portion side and that fits into the cutout portion; A positioning member for the rivet member, the rivet member includes an engaging portion with the positioning member, and a distance from the engaging portion to a root of the head of the rivet member includes the sliding member. The seating seat having a movable backrest according to claim 1, wherein the rivet member has a thickness smaller than the thickness of the member. 5. The rivet member includes a first shaft portion fitted and fixed to at least a notch portion of the sliding member, and a notch portion of the sliding member provided on an end side of the first shaft portion. And a second shaft portion movable in the longitudinal direction with the second shaft portion provided with a first engagement portion and a second engagement portion. The second engagement portion and the first engagement portion are formed such that the distance to the base of the head of the member is smaller than the thickness of the member on which the rivet member including the sliding member is arranged. The seating seat having a movable backrest according to claim 4, wherein the seat is formed so that the distance from the sliding member is larger than the thickness of the sliding member. 6. The movement restricting means is at least a projection that can be fitted into the cutout portion, and is pivotally supported on the seating portion side, and is movably held in a direction toward or away from the cutout portion. Holding portion, a cam member having a convex portion that engages with either the side of the holding portion where the protrusion is provided or the side opposite to the side where the protrusion is provided, and the cam member that rotates. And a knob for movably holding the knob, and by rotating the knob, the convex portion of the cam member engages with the holding portion, and the projection of the holding portion approaches or separates from the cutout portion. A seating seat having a movable backrest according to claim 1, wherein the seating seat is movable in any direction. 7. The movement restricting means includes a protrusion that can be fitted into the cutout portion from the seating portion side, a holding portion that holds the protrusion and is connected to the seating portion side, and an engaging portion for the holding portion. An operating portion having a mating engaging portion and a gripping portion continuous to the engaging portion, wherein the engaging portion engages with the holding portion by moving the gripping portion, and the protrusion is The seating seat having a movable backrest according to claim 1, wherein the seating seat is pushed up toward the cutout portion. 8. A seat for a motorcycle comprising a seating portion and a movable backrest on the rear side of the seating portion, wherein the movable backrest supports a back surface of the movable backrest and extends toward the seating portion side. A pair of sliding members that project is provided, the sliding members are provided with notches that face each other along the longitudinal direction, and the sliding members are provided with movement restricting means that restricts movement. A means is provided with a pair of fitting members urged | biased by the said notch part, The seat for motorcycles provided with the movable backrest. 9. The movement restricting means includes a rotatable knob provided on the seat portion side, an arcuate cut groove provided at a predetermined portion of the knob, and movable in the cut groove. A connecting member and a fitting member to the cutout portion connected to the connecting member, wherein the connecting member moves in the kerf when the knob rotates, and the connecting member moves according to the movement of the connecting member. 9. The seat for a motorcycle having a movable backrest according to claim 8, wherein the position of the fitting member is changed. 10. The movement restricting means includes a steel wire member that is installed between the cutout portions and can be fitted into the cutout portions, and the steel wire member is provided with bent portions at least at both free ends thereof. The seat for a motorcycle having a movable backrest according to claim 8, wherein the free ends are bent so as to approach each other and are disposed on the seating portion. 11. A seat for a motorcycle comprising a seat portion and a movable backrest on the rear side of the seat portion, wherein the movable backrest supports a rear surface of the movable backrest and extends toward the seat portion side. A pair of sliding members that project is provided, the sliding member is arranged along the arrangement portion provided on the seating portion side, and the notch portion communicating with the sliding member and the arrangement portion is provided. Movement restriction means for restricting the movement of the sliding member are engaged with each other along the longitudinal direction, and a part of the movement restriction means is axially attached and an end side is attached. A seat for a motorcycle including a movable backrest, comprising a pair of fitting members that are expanded by a biasing means and fit into the notches. 12. A pair of standing portions engageable with the fitting member is provided on a side of the fitting member that is axially mounted, and a distance between the pair of standing portions is equal to that of the pair of sliding members. 12. The motorcycle seat according to claim 11, wherein the seating member is narrower than a distance between the moving members, and the fitting member engages with the upright portion and is separated from the cutout portion.