JP4504054B2 - Seat structure for two- and three-wheeled vehicles - Google Patents

Description

  The present invention relates to an improvement in a reclining seat structure equipped in a two- or three-wheeled vehicle.

A motorcycle having a reclining seat is known (for example, see Patent Document 1).
Japanese Utility Model Publication No. 57-10948 (Fig. 3)

  In FIG. 3 of Patent Document 1, reference numeral 2 is a seat, reference numeral 7 is a reclining device, reference numeral 15 is a backrest (backrest), reference numeral 16 is an operation handle, and by operating the operation handle 16, The angle of the ridge 15 can be adjusted.

  By the way, unlike a four-wheeled vehicle, a motorcycle is unintentionally part of the driver's body when the driver gets on and off the vehicle, moves by pushing the vehicle, or passes by. The angle of the dorsal fin 15 may change.

  Therefore, it is desired that even a reclining seat can be maintained in an inclinable state except when the driver intends.

  This invention makes it a subject to provide the technique which can make a seat reclining impossible except when the driver | operator intends.

The invention according to claim 1 makes it possible to adjust the angle of the seat back by attaching the seat back to the seat provided on the body of the two-wheeled vehicle or the three-wheeled vehicle via the reclining mechanism and operating the reclining lever. The seat for a three-wheeled vehicle includes a locking mechanism that disables the angle adjustment of the seat back separately from the reclining lever, and the reclining lever is swingably attached to a swing bracket fixed to the seat back side. The locking mechanism disables the operation of the reclining lever, thereby making it impossible to adjust the angle of the seat back , and the locking mechanism is attached to the swing bracket. To do.

The invention according to claim 2 is characterized in that, in claim 1, the lock mechanism is a mechanism that can be locked / unlocked by a key that permits starting of an engine provided in the vehicle.

The invention according to claim 3 is characterized in that, in claim 1 or claim 2, the lock mechanism is arranged on the right side of the vehicle body so that the key can be inserted and removed in the vehicle width direction.

According to a fourth aspect of the present invention, in the first aspect, the reclining mechanism is fixed to the vehicle body side and includes a base bracket having a plurality of recesses, a swing bracket fixed to the seat back side, and the base bracket. A reclining lever having a pawl that can freely enter and exit in one of the recesses on the same plane, and both members of the base bracket and the reclining lever are sandwiched between the swing bracket and the base bracket together with the swing bracket A connecting plate that pivotally supports the reclining lever while swingably supporting the reclining lever, and the reclining lever and the connecting plate so as to elastically restrict swinging of the reclining lever. And the reclining lever is provided with a protrusion integrally, The lock mechanism is supported by the swing bracket, and a lever that interlocks with the rotation of a key inserted into the lock mechanism allows and disallows the reclining lever to swing by engaging with the protrusion. It is possible to move to the position.

The invention according to claim 1 includes a lock mechanism that disables the angle adjustment of the seat back separately from the reclining lever, and the lock mechanism adjusts the angle of the seat back by disabling the operation of the reclining lever. Since it is made impossible, the angle of the seat back can be maintained even when an external force is applied to the reclining lever or a large external force is applied to the seat back. That is, since the reclining mechanism can be locked by the lock mechanism, the reclining function can be fixed except when the driver intends.
The reclining lever is swingably attached to a swing bracket fixed to the seat back side, and the lock mechanism is attached to the swing bracket.

According to the second aspect of the present invention , the reclining mechanism can be locked / unlocked by a key that permits starting of an engine provided in the vehicle. Stop the engine, remove the key from the key hole, and unlock the reclining mechanism with this key. That is, it is necessary to stop the engine in order to release the lock.
Since the key is also used, it is possible to prevent the seat from reclining while the vehicle is running.

In the invention according to claim 3 , since the lock mechanism is arranged on the right side of the vehicle body and arranged so that the key can be inserted and removed in the vehicle width direction, the key is inserted into and removed from the right side of the vehicle and the lock mechanism. The operation can be performed and the operation can be facilitated. Further, when the key is inserted while being on the vehicle, the right hand is separated from the throttle grip, so there is no possibility of starting the vehicle.

According to the fifth aspect of the present invention, the seat back can be reclined only when the key is inserted into the lock mechanism and the lever is rotated to a position where it can be reclined.

  The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals. The two-wheeled vehicle or the three-wheeled vehicle will be described below by taking a scooter type vehicle as an example.

  FIG. 1 is a side view of a scooter type vehicle according to the present invention. A scooter type vehicle 10 as a two-wheel vehicle or a three-wheel vehicle has a steering handle 13 attached to a head pipe 12 at a front portion of a body frame 11 so as to be steerable. The basic structure is to attach the front wheel 15 and the front fender 16 to the front fork 14 connected to the handle 13. The left and right ends of the steering handle 13 are provided with brake operators 20L and 20R (L is a left with respect to the driver, R is a subscript indicating the right, and so on).

  A separate frame 18 is attached to the body frame 11, a headlamp 19, a direction indicator lamp 21, etc. are attached to the separate frame 18, and a step 22 is attached to the lower pipe 34 extending from the down tube 17. A power unit 23 is attached to the rear part of the frame 11 so as to freely swing up and down, a rear wheel 24 is attached to the rear part of the power unit 23, a driver seat 25 obliquely upward toward the front of the rear wheel 24, and a passenger seat above the rear wheel 24. It is a two-seater light vehicle provided with a seat back 26.

In the figure, 27 is a handle post cover, 28 is a side cover, 29 is a rear cushion, 30 is a passenger step, 31 is a stand, and 32 is a grab rail.
Reference numeral 27a denotes a main switch mounting portion, which is provided on the right side (back of the figure) from the longitudinal center axis of the vehicle body. Therefore, it is standard that the main key is inserted and rotated with the right hand.

FIG. 2 is a side view of a scooter type vehicle according to the present invention changed to a single-seat specification, and the basic configuration is the same as FIG. 26 is raised to indicate that the driver M has been changed into a backrest, that is, a seat back. In addition, it indicates that a luggage 33 such as a tent is loaded on the front portion of the separate frame 18.
Furthermore, not only the steering handle 13 and the grab rail 32 but also the separate frame 18, the down tube 17, the lower pipe 34 and the rear frame 35 extending from the down tube 17 are exposed.

In a conventional scooter type vehicle, it is usual to cover the body frame with a body cover so that most of the body frame is not exposed. On the other hand, in the present invention, most of the body frame is exposed to exhibit unprecedented external features.
In addition, He is a helmet, 37 is a meter unit, 38 is an air cleaner, 39 is a load-carrying part.

  FIG. 3 is a perspective view showing a driver's seat (a state in which the passenger seat is raised) according to the present invention. By raising the passenger seat and seat back 26, the driver seat 25 becomes a seat with a backrest. . By the action of a reclining mechanism 90 (detailed structure will be described later) arranged on the right with respect to the longitudinal axis W of the vehicle body, the passenger seat and seat back 26 can be laid or changed in angle.

Further, it is shown that the luggage loading portion 39 and the grab rail 32 are attached to the rear frame 35.
The load carrying portion 39 is formed of a resin or light metal uneven plate. If it is a concavo-convex plate, the section modulus can be remarkably increased as compared with a flat plate, and more luggage can be loaded.

  Further, an operator 47 and a first lock mechanism 56 of a slide lock mechanism (details will be described later), and an unlocking knob 80 used to remove the driver seat 25 from the vehicle body are arranged below the front edge of the driver seat 25. To do.

  The driver (symbol M in FIG. 2) sitting on the driver seat 25 returns the accelerator and stops the vehicle, and then, with the right hand, the key 84 inserted in the main switch (symbol 27a in FIG. 2) is moved to the engine stop position. Turn and remove key 84 from the main switch. The extracted key 84 is inserted into the first lock mechanism 56 and rotated in the unlocking direction. These series of operations are performed continuously with the right hand.

  Here, since the operation element 47 is provided on the left side of the vehicle body, the driver can operate the operation element 47 with the left hand. Therefore, in FIG. 2, the driver M can perform the seat slide operation in a state where the right brake operator 20R is applied.

  Since the first lock mechanism 56 is arranged on the right and the operation element 47 is arranged on the left so that the left and right hands can be used efficiently, the operability can be greatly improved. Since the seat slide operation can be performed with the brake applied, the operation can be performed in a stable state.

Further, since the key 84 is also used, the seat slide operation can be performed when the engine is stopped.
Furthermore, since the key 84 is also used, it is not necessary to prepare a plurality of keys, the number of parts can be reduced, and operability can be improved.

Next, the seat reclining mechanism 90 will be described.
FIG. 4 is an attachment view of the passenger seat / seat back according to the present invention. The passenger seat / seat back 26 is attached to the right slider 42R via the reclining mechanism 90, and at the rear end of the cross pipe 43 with a pin 85. The mounting angle can be changed by pivotally supporting it.

The reclining mechanism 90 can be locked and unlocked with a key 84.
For example, in FIG. 2, the driver M returns the accelerator and stops, and turns the key (not shown) in the main switch mounting portion 27a with the right hand to stop the engine. Then, remove the key, hold the key with your right hand, insert it into the lock mechanism 92 shown in FIG. 4, turn it, adjust the angle of the passenger seat and seat back 26, and turn the key 84 in the reverse direction to lock the reclining mechanism 90 A series of operations of making a state can be continuously performed with one hand.

  The reclining mechanism 90 for that purpose is a structure covered with an upper cover 93 provided with a lower cover 91 and a second lock mechanism 92. In the following description, these covers 91 and 93 will be removed and the internal mechanism will be described.

  FIG. 5 is an exploded view of the reclining mechanism according to the present invention. The reclining mechanism 90 includes a base bracket 94 that is fixed to the vehicle body side, a first recess 95 and a second recess that are notched in the upper rear portion of the base bracket 94. 96 and the third recess 97, a reclining lever 100 including a claw 98 meshing with any of the first to third recesses 95 to 97, a swing bracket 101 coupled to the passenger seat and seat back side, A stopper piece 102 formed by bending the swing bracket 101, a protrusion 103 formed to bulge from the swing bracket 101 to support the second lock mechanism 92, a connecting plate 104 disposed opposite to the swing bracket 101, and this connection A spring 105 that engages one end of the plate 104 and two rivet pins 106 and 107 are main components.

Then, one rivet pin 106 is passed through the hole 108 of the reclining lever 100, and the other rivet pin 107 is passed through the hole 109 of the base bracket 94. Attach a plate 104. By caulking both ends of the rivet pins 106 and 107, the swing bracket 101 and the connecting plate 104 are connected and integrated by the rivet pins 106 and 107.
The assembled figure is explained in the next figure.

  FIG. 6 is a perspective view of the reclining mechanism according to the present invention, showing that the passenger seat / seat back 26 is coupled to the swing bracket 101 and the other end of the spring 105 is locked to the reclining lever 100. The second lock mechanism 56 can be operated with a key 84 used to start the engine.

FIG. 7 is an operation diagram of the reclining mechanism according to the present invention.
In (a), when the reclining lever 100 is rotated clockwise about the upper rivet pin 106, the claw 98 engaged with the first recess 95 is released. When the reclining lever 100 hits the stopper 111 on the upper part of the connecting plate 104, the reclining lever 100 does not rotate in the clockwise direction.

  In the state (a), the swing bracket 101 can be rotated counterclockwise around the lower rivet pin 107. In addition, since the stopper piece 102 contacts the stopper receiving surface 112 on the base bracket 94 side in the clockwise direction, it cannot rotate. That is, the upper limit of the passenger seat and seat back 26 can be defined by the stopper piece 102 and the stopper receiving surface 112 (see also FIG. 6).

  (B) shows that the swinging bracket 101 rotates counterclockwise around the lower rivet pin 107, and the reclining lever 100 rotates counterclockwise together. As a result, the claw 98 faces the third recess 97. It shows that. When the reclining lever 100 is loosened, the pawl 98 is engaged with the third recess 97 by the pulling action of the spring 105, and the reclining lock state is established. The same applies to the second recess 96.

  In this way, by operating the reclining lever 100 to release the reclining lock, the passenger seat and seat back can be set at an arbitrary angle. Although the number of reclining locks is three in this example, the number is arbitrary.

FIG. 8 is an explanatory view of the reclining lock / unlock according to the present invention.
(A) shows a reclining lock state, and since the lever 113 of the second lock mechanism 92 faces the protrusion 100a side of the reclining lever 100, the reclining lever 100 can be rotated clockwise around the rivet bolt 106. The claw 98 remains engaged with any one of the first to third recesses 95 to 97. Therefore, if the second lock mechanism 92 is in the locked state, it can be said that even if an external force acts on the reclining lever 100, the link lining is not possible.

  By the way, when the second locking mechanism 92 is in the locking position, if the reclining lever 100 is rotated in the clockwise direction around the rivet bolt 106 with a strong force, a large force acts on the second locking mechanism 92. Therefore, this force is received by the protrusion 103. As a result, the second lock mechanism 92 can be provided on the upper cover (reference numeral 93 in FIG. 4) having relatively low rigidity.

  (B) shows a reclining / unlocked state, and shows that by turning the lever 113 of the second lock mechanism 92, the reclining lever 100 can be pulled to the position of the imaginary line and the reclining lock can be released. .

  FIG. 9 is a view showing the rear structure of the driver seat according to the present invention. The bottom plate 114 of the driver seat 25 bulges the rear portion upward, and a vertically long notch 116 is formed in the bulged portion 115. The support pipe 117 (see FIG. 4) that supports the passenger seat and seat back is positioned in the notch 116.

  The support pipe 117 in FIG. 9 is at the upper limit position, and moves up and down within the range of the notch 116 with reclining. Further, since the notch 116 is opened downward, the driver's seat 25 can be detached and attached regardless of the reclining position as indicated by the arrows F and G, and the operability of seat removal can be improved.

  The vehicle of the present invention may be a two-wheeled vehicle or a three-wheeled vehicle other than the scooter-type vehicle described in the embodiment.

  In addition, in addition to the mechanism that directly locks the reclining lever, the lock mechanism may be a mechanism that restrains the swing bracket with respect to the vehicle body. As long as the mechanism can be used, the structure and the mounting position are arbitrary. The means for operating the locking mechanism does not necessarily have to be a key used for starting the engine, and may be a dedicated key.

  The present invention is suitable for scooter type vehicles.

1 is a side view of a scooter type vehicle according to the present invention. It is a side view of the scooter type vehicle concerning the present invention changed into single-seat specifications. It is a perspective view which shows the driver | operator seat (form which raised the passenger seat) which concerns on this invention. It is an attachment figure of the passenger seat and seat back concerning the present invention. It is an exploded view of the reclining mechanism concerning the present invention. It is a perspective view of the reclining mechanism concerning the present invention. It is an effect | action figure of the reclining mechanism which concerns on this invention. It is explanatory drawing of the reclining lock / unlock concerning this invention. It is a figure which shows the rear part structure of the driver | operator seat which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Two-wheeled vehicle or three-wheeled vehicle (scooter type vehicle), 25 ... Seat (driver's seat), 26 ... Seat back (passenger seat and seat back), 84 ... Engine startable key, 90 ... Reclining mechanism, 92 ... Lock Mechanism (second lock mechanism), 94: base bracket, 95 to 97, recess, 98 ... claw, 100 ... reclining lever, 100a ... projection of the reclining lever, 104 ... connecting plate, 105 ... spring, M ... driver.

Claims (4)

In a seat for a two-wheeled vehicle or a three-wheeled vehicle, the seatback is attached to a seat provided on a vehicle body of a two-wheeled vehicle or a three-wheeled vehicle via a reclining mechanism, and the angle of the seatback can be adjusted by operating the reclining lever.
A locking mechanism that disables the angle adjustment of the seat back separately from the reclining lever,
The reclining lever is swingably attached to a swing bracket fixed to the seat back side,
The locking mechanism disables the angle adjustment of the seat back by disabling the operation of the reclining lever ,
The locking mechanism is attached to the swing bracket;
A seat structure for a two- or three-wheeled vehicle. The seat structure for a two- or three-wheeled vehicle according to claim 1, wherein the locking mechanism is a mechanism that can be locked / unlocked by a key that permits starting of an engine provided in the vehicle. The seat structure for a two- or three-wheeled vehicle according to claim 1 or 2, wherein the locking mechanism is arranged on the right side of the vehicle body and arranged so that a key can be inserted and removed in a vehicle width direction. The reclining mechanism is fixed to the vehicle body side and includes a base bracket having a plurality of recesses, a swinging bracket fixed to the seat back side, and freely entering and exiting one of the recesses on the same plane as the base bracket. A reclining lever having a claw, and both the base bracket and the reclining lever are sandwiched by the swing bracket, and the reclining lever is pivotally supported to the base bracket together with the swing bracket. The reclining lever comprises: a connecting plate that pivotally supports the lever; and a spring connected between the reclining lever and the connecting plate so as to elastically restrict the swinging of the reclining lever. The lever is integrally provided with a protrusion, and the locking mechanism is supported by the swing bracket. Both of the levers interlocking with the rotation of the key inserted into the lock mechanism can be moved to a position where the swing of the reclining lever is permitted and not permitted by the engagement with the protrusion. The seat structure for two- or three-wheeled vehicles according to claim 1 .

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