JPH0343108Y2 - - Google Patents

Description

[Detailed description of the invention] A. Purpose of the invention (1) Industrial application field The present invention provides a seat for a motorcycle, particularly a driver's seat, and a seat adjacent to the rear of the driver's seat.
The present invention relates to a seat having a seat for a passenger having a seat surface higher than the seat for the driver, and a lumbar rest for the driver provided between the seats of both the seats.

(2) Prior Art In the above-mentioned type of seat, the driver's lumbar rest has the function of restricting backward movement of the lumbar region of the driver seated on the driver's seat and keeping the seated position constant. In order to be able to appropriately adjust the seating position according to the physique of the driver, it is desirable that the relative position of the waist rest with respect to the driver's seat be adjustable in the front-rear direction.

Therefore, by supporting the passenger's seat, which is configured separately from the driver's seat, on the vehicle body frame so as to be able to move back and forth, we developed a driver's waist support that is integrally formed on the front end of the passenger's seat. Conventionally, there has been known a vehicle in which the driver's seat can be moved and adjusted in the longitudinal direction with respect to the driver's seat (see Japanese Utility Model Publication No. 143776/1983).

(3) Problems to be solved by the invention In the conventional device, in order to adjust the position of the driver's waist rest back and forth, the seat for the passenger, which is integrated with the waist rest, is attached to the vehicle body frame. Since it is necessary to move the passenger seat back and forth, as the passenger seat changes its movement, the riding sensation of the passenger seated in the same seat changes, especially the feeling of putting one's feet on the pillion step provided on the vehicle body. There is a problem.

The present invention enables the relative position of the driver's waist rest with respect to the driver's seat to be adjusted back and forth without such problems, and moreover, the driver's waist rest can be adjusted to prevent forward movement of the passenger's waist. It is an object of the present invention to provide a motorcycle seat which can be effectively used as a stopper that can always be restricted to a certain limit.

B. Structure of the invention (1) Means for solving the problems In order to achieve the above object, the present invention combines the driver's seat and the passenger's seat to form a seat assembly. , the driver's waist rest includes a movable part that is supported by the seat assembly so as to be movable back and forth, and a fixed part that is integrally formed with the seat assembly,
A feature is that at least the upper end of the fixing part is formed higher than the seat surface of the passenger seat.

(2) Effect By moving the movable part of the driver's waist rest back and forth with respect to the seat assembly, the seating position of the driver relative to the driver's seat can be adjusted as appropriate in the front and back direction. Even with this adjustment, the relative positional relationship between the passenger seat and the vehicle body does not change from beginning to end.
The riding sensation of the passenger seated on the passenger seat remains unchanged.

The upper end of the fixed part of the driver's waist rest that is integrated with the seat assembly is formed higher than the passenger's seat, so that the forward movement of the passenger's waist is always limited to a certain limit. It functions as a stopper that can be regulated.

(3) Embodiment An embodiment of the present invention will be described below with reference to the drawings. A seat S mounted on a body frame F of a motorcycle includes a seat section 1 for the driver and a seat section 1 for the driver, located behind the seat section 1 for the driver. A seat part 2 for a passenger having a seat surface 2s higher than a seat surface 1s of a seat part 1 for a passenger;
The driver's waist rest 3 is provided between the seat surfaces 1s and 2s of the seats 1 and 2.
are integrally connected to each other via a bottom plate 5 fixed to a proper position of the vehicle body frame F by bolts or other connecting means, thereby forming a seat assembly C.

As shown in FIGS. 1 and 2, the waist rest part 3 is composed of a wide central movable part 3 ₁ and a pair of narrow fixed parts 3 ₂ and 3 ₂ that sandwich the movable part 3 ₁ from the left and right sides. Ru. Each fixing portion 3 ₂ is formed integrally with the seat assembly C, and its upper end is formed higher than the seat surface 2s of the passenger seat 2. and each fixed part 3 ₂
The upper end rear surface 3' ₂ is formed as a rearwardly downwardly inclined surface and functions as a stop surface that restricts the forward movement of the waist of the passenger seated on the passenger seat 2 to a certain limit. On the other hand, the movable portion ₃₁ is supported by the seat assembly C so as to be movable back and forth, and the structure of the support mechanism 6 will be described next with reference to FIGS. 3 to 5.

On the rear surface of the movable part 3 ₁ , a pair of left and right sliding pins 7,
A back plate 8 is attached thereto, and a connecting rod 7a connecting the front ends of the sliding pins 7, 7 is fixed to the front surface of the back plate 8. The bottom plate 5 of the seat assembly C has guide holes 9 into which the pair of sliding pins 7 are inserted so as to be slidable back and forth.
A pair of left and right guide members 9, 9 having guide members 9a and 9a are fixedly provided, and a lock bar 10 is slidably fitted into a guide rod 9b provided on the lower surface of each guide member 9 and extending in the left-right direction. In that lock bar 10,
A pair of elongated holes 10a, 10a extending in the left-right direction are drilled into which a pair of sliding pins 7, 7 are loosely inserted, respectively, and the inner end of each elongated hole 10a is connected to each sliding pin 7 at a distance from the front and back. The lock groove 7b can be selectively engaged with one of a plurality of lock grooves 7b provided therein.
A pressure spring 11 is provided between each sliding pin 7 and the bottom plate 5 to urge each sliding pin 7 forward, and a pressure spring 11 is provided between the lock bar 10 and the bottom plate 5 to prevent the lock bar 10 from engaging with the lock groove 7b. Lock springs 12 are each tensioned so as to bias them in the matching direction (rightward in FIG. 4). The free end of the lock bar 10 is connected to the bottom plate 5 as shown in FIG.
It penetrates into the cushion layer 17 of the seat assembly C, and the cushion layer 17 is located at the free end of the cushion layer 17.
The operating knob 13 embedded therein is fixed. In order to indicate the buried position of the operating knob 13 from the outside, a concave marking 14a is provided on the skin 14 of the seat assembly C. When this marking 14 is pressed from the outside of the skin 14, the lock bar 10 is moved in the direction of arrow a in FIG.
The inner end of each long hole 10 of the lock bar 10 and the lock groove 7b
The device can be temporarily forced in the direction of disengaging the device.

On the upper rear surface of the movable part ₃₁ , there are
Even when the movable part 3 ₁ and the passenger seat part 2 are in the most advanced position shown in the solid line in FIG. The lower surface 16d of the extension part 16 is slidably in contact with the seat surface 2s of the passenger seat 2, and the upper surface 16u thereof is in contact with the fixed position when it is in the most retracted position shown in dashed lines in FIGS. It is formed into a rearwardly downwardly inclined surface so as to form a substantially continuous surface with the rear surface 3' ₂ of the upper end portion of the portion 3 ₂ . On the other hand, the lower end surface 3'' ₁ of the movable portion 3 ₁ is in slidable contact with the seat surface 1 s of the driver's seat portion 1 .

Next, the operation of the above embodiment will be explained. When the movable part 3 ₁ of the passenger waist rest 3 is held at the most retracted position as shown by the chain lines in FIGS. The sliding pin 7 engages with the lock groove 7b at the frontmost portion, thereby restricting the forward movement of the movable portion ₃₁ . Here, the driver seated on the driver's seat 1 presses the marking 14a on the skin 14 of the seat assembly C against the spring force of the lock spring 12 in order to move the movable part ₃₁ forward. For example, the lock bar 1 can be opened via the operation knob 13.
0 is pushed in the direction of arrow _a in FIG.
It automatically moves forward by the spring force of the pressing spring 11 while being slidably guided by. Then, when the movable part ₃₁ reaches an appropriate position, for example, the most advanced position shown in solid lines in FIGS.
The inner end a engages with the rearmost lock groove 7b to stop and hold the movable part ₃₁ at its most advanced position.

On the other hand, the operating procedure is the same when retracting the movable part 3 ₁ from the most forward position, contrary to the above, but in this case, it is necessary to apply a retracting force that exceeds the spring force of the pressing spring 11 to the movable part 3 ₁ . There is.

In this way, the relative position of the movable portion ₃₁ to the driver's seat 1 can be adjusted arbitrarily in the front-back direction, so that the driver can adjust the seating position on the driver's seat 1 as appropriate depending on his/her physique.

In addition, during the movement, the movable part 3 ₁ has its lower end surface 3'' ₁
is on the seat surface 1s of the driver's seat section 1, and the lower surface 16d of the rear extension section 16 is on the seat surface 2 of the passenger's seat section 2.
sliding contact with s.

Therefore, even when the movable part ₃₁ is held at the most advanced position shown by the solid line in Figs.
₁ and the passenger seat 2, the upper part of which is covered by the rear extension part 16 of the movable part ₃₁ , and the side part covered by the fixed part ₃₂ . There is no need to worry about the support mechanism 6 of the movable part ₃₁ being visible from above or from the sides of the seat through the gap 15.

By the way, the pair of left and right fixing parts 3 ₂ , 3 ₂ of the driver's waist rest 3 are located at the left and right outermost sides of the seat S, and their respective upper ends are higher than the seat surface 2s of the passenger seat 2. Therefore, even if each of the movable parts 31 is narrow in the left and right direction, and even if the movable part ₃₁ is in the most forward position, the forward movement of the waist of the passenger seated on the passenger seat part 2 is prevented. It can always be regulated to a certain limit, and therefore the seated position of the passenger on the passenger seat 2 can be reliably maintained.

C. Effects of the invention As described above, according to the invention, the driver's waist rest moves its movable part back and forth with respect to the seat assembly, thereby adjusting the seating position of the driver relative to the driver's seat. can be adjusted appropriately in the longitudinal direction according to the physique of the driver, and even with this adjustment, the relative positional relationship between the passenger seat and the vehicle body remains constant from beginning to end. Therefore, the riding sensation of the passenger seated on the passenger seat, especially the feeling of putting his feet on the pillion step, does not change. Furthermore, the driver's waist rest can always restrict the forward movement of the passenger's waist to a certain limit by the upper end of the fixed part that is formed higher than the passenger's seat. Therefore, the seated position of the passenger on the passenger seat can be reliably maintained.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is an overall perspective view thereof, FIG. 2 is a plan view thereof, FIG. 3 is a sectional view taken along the line of FIG. 2, and FIG. −
A line sectional view and FIG. 5 are exploded perspective views of a position adjustment mechanism for a movable part of the waist rest. C... Seat assembly, S... Seat, 1... Driver seat, 2... Passenger seat, 2s... Seat surface, 3
... Driver's waist rest, 3 ₁ ... Movable part, 3 ₂ ... Fixed part.

Claims (1)

[Scope of utility model registration request] A seat for a driver, a seat for a passenger which is arranged adjacent to the rear of the seat for the driver and has a seat surface higher than the seat for the driver, and a seat provided between the seat surfaces of both the seat sections. In the motorcycle seat, the driver's waist rest is attached to the seat assembly, and the two seat parts are joined together to form a seat assembly, and the driver's waist rest is attached to the seat assembly. A movable part supported so as to be movable back and forth, and a fixed part formed integrally with the seat assembly, and at least an upper end of the fixed part is formed higher than a seat surface of the passenger seat. A motorcycle seat characterized by: