JPS6345380Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a vehicle speed change operation device, and although the operation lever is provided on the fender side of the seat to improve operability, the area around the foot of the seat is configured as a flat deck. The main purpose is to improve comfort around the feet and ease of boarding and alighting.

2. Description of the Related Art Conventionally, as a speed change operation device for a vehicle, for example, a tractor, there is a device in which a number of operation levers corresponding to the respective speed change mechanisms are provided on the sides of a seat, and the speed can be changed via a link mechanism or the like.

This increases the number of operation levers, and since a hydraulic control lever and the like are provided in addition to the gear shift operation lever on the side of the seat, there is a problem in that the driver is likely to misunderstand the operation.

There are devices in which a single control lever can be used to operate multiple transmission mechanisms via link mechanisms, but it is difficult to connect the link mechanism on the operation lever side and the link mechanism on the transmission mechanism side. Become.

That is, when an interlocking rod is provided as a connecting member, since the interlocking rod is installed horizontally between the fender side and the vehicle body side, the interlocking rod is supported and exposed at the side of the seat. This impairs the comfort of the seat area and causes difficulty in getting on and off the vehicle.

Particularly in the case of so-called reverse-type vehicles, in which the seat and steering wheel mechanism have recently been made freely changeable between a forward-facing driving position and a backward-facing driving position, exposing the interlocking rod means that the legroom becomes narrower. It wasn't what I wanted.

Therefore, the present invention has been devised in view of the above-mentioned actual situation. Therefore, in this invention, a floor seat having a seat is attached to a support plate attached to the side of the vehicle body, and a floor seat is installed on both sides of the seat. In a vehicle in which an upright wheel fender is attached to the floor seat and a transmission mechanism built in a transmission case constituting the vehicle body is shifted by a control lever, the control lever is located on the side of the wheel fender facing the seat. A guide plate is attached, and an interlocking rod that is rotatable around an axis with its axis in the left-right direction of the vehicle body is provided on the support plate, and a link mechanism at the bottom of the operating lever is interlocked and connected to the outer end surface of the interlocking rod. Further, a link mechanism on the vehicle body side that is interlocked with the transmission mechanism is interlocked and connected to the inner end side of the interlocking rod, and is rotatably connected to the link mechanism at the lower part of the operating lever, the link mechanism on the vehicle body side, and the support plate. The provided rod is covered with the floor sheet.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

In FIG. 1, which perspectively shows a part of a wheeled tractor as an example of a vehicle 1, 2 is a transmission case constituting a vehicle body 3, and inside this case 2, a plurality of transmission mechanisms 4 and 5 are installed as appropriate. For example, a PTO transmission mechanism is installed in the front and rear (fourth
(see figure).

A support plate 7 attached to the side of the transmission case 1 via bolts 6 is provided on the vehicle body 3 as shown in FIG. A floor sheet 9 is provided via a vibrating rubber 8.

On the floor seat 9, a seat 10 is removably installed on the bulge 9A at the center in the width direction, and the rear rising wall 9B of the floor seat 9 is located at the rear of the seat 10. The front ends of the flat decks 9C on both sides of the seat 10 are attached to steps S.

Further, in FIG. 1, reference numeral 11 denotes a pair of left and right wheel fenders, which are erected inside each rear wheel 12 and are attached to both sides of the floor seat 9 via bolts 13 or the like.

Thus, in the embodiment of the present invention, a box-shaped guide plate 14 is attached to the side of the right wheel fender 11 facing the seat 10 via bolts 15, and furthermore, the lower part of the guide plate 14 is attached to the floor seat 9. It is attached to the flat deck 9C via bolts 16.

The guide plate 14 has an H-shaped guide hole 14A in its upper part, and one operating lever 17 is inserted and supported in the guide hole 14A.

Inside the front and rear walls of the guide plate 14 is a support shaft 18 in the front and rear direction.
is attached, and a cylindrical body 19 provided at the lower part of the operating lever 17 is rotatably fitted onto the support shaft 18.

Further, an operating lever 17 is supported on the cylindrical body 19 via a metal fitting 20 so as to be rotatable in the front-back direction about a pin 21 as a fulcrum.

Reference numerals 22 and 23 designate link mechanisms, which are inserted into the guide hole 14A of the guide plate 14 and provided at the lower side of the operation lever 17 that is rotatably supported by a support shaft 18, etc., and the link mechanism 22 is connected to the transmission mechanism 4. The link mechanism 23 is for the transmission mechanism 5.

24 and 25 are interlocking rods, which are rotatably installed horizontally on the support plate 7.
The link mechanism 22 is connected to a link mechanism 26 which is interlocked with the transmission mechanism 4 on the vehicle body 3 side.

Also, the interlocking rod 25 connects the link mechanism 23 and the vehicle body 3.
A link mechanism 27 interlocked with the transmission mechanism 5 is connected to the side.

That is, the interlocking rod 24 is attached to the holder 2 on the support plate 7.
The link mechanism 22 is configured such that the outer end arm 30 of the interlocking rod 24 is pivotally connected to the lower part of the operating lever 17 via the universal joint 31. An inner end arm 32 of the interlocking rod 25 is pivotally connected to a speed change arm 34 via an elongated hole and a pin 33 to form a link mechanism 26.

The link mechanism 23 has a supporting shaft 36A in the front and rear direction protruding from a support 36 attached to the inner surface of the wheel fender 11 via a bolt 35, and an arm of a cylindrical body 37 rotatably fitted onto the supporting shaft 36A. An arm 19A of a cylindrical body 19 fitted onto a support shaft 18 is pivotally supported on the arm 37A by a pin 38 in the front-rear direction, and an arm 37B is provided which is connected inwardly and downwardly from the arm 37A.

On the other hand, an interlocking rod 25 is rotatably inserted into a cylindrical shaft 40 supported on the support plate 7 via a holder 39, and a front-back direction protruding from the outer end of the interlocking rod 25 via an arm 25A. A pin 25B is pivotally supported by the arm 37B, and the link mechanism 23
It consists of

Furthermore, an arm 41 in a forward downward shape is projected from the inner end of the interlocking rod 25, and the arm 41 and the gear shift support shaft 4 are connected to each other.
An arm 43 fixedly attached to the transmission case 2 is pivotally supported by pins 45 and 46 via a connecting arm 44 to form a link mechanism 27, and a transmission support shaft 42 is inserted and supported in the transmission case 2 to support the transmission mechanism 5. are linked via a gear shift arm (not shown).

The link mechanisms 22, 23, 26, 2
7 and interlocking rods 24 and 25 are floor seats 9
It is covered by the

Next, the action will be explained.

The driver in the seat 10 moves the operating lever 17 to the support shaft 18.
By rotating the support shaft 36 around the axis in the direction of the arrow A in FIG.
The arm 37B is swung about A as a fulcrum, and as the arm 37B is swung, the interlocking rod 25 is rotated about the cylindrical shaft 40 via the pin 25B.

That is, the interlocking rod 25 is connected via the link mechanism 23.
is rotated around the axis.

When the interlocking rod 25 is rotated, the arm 41,
The link mechanism 27 consisting of the connecting arm 44 and the arm 43 is operated, and the speed change operation of the speed change mechanism 5 is performed via the speed change support shaft 42.

Furthermore, when the operating lever 17 is operated in the direction of arrow B in FIG. 3 via the pin 21, the arm 30 swings back and forth, thereby rotating the interlocking rod 24 about its axis.

That is, the interlocking rod 24 is rotated around the axis via the link mechanism 22, and this rotation is caused by the link mechanism 26.
It is transmitted as a shift operation force to the shift mechanism 4 through the transmission mechanism 4.

In short, according to the present invention, a floor seat 9 having a seat 10 is attached to the support plate 7 attached to the side of the vehicle body 3, and wheel fenders 11 erected on both sides of the seat 10 are attached to the floor. The side of the wheel fender 11 facing the seat 10 in which a plurality of transmission mechanisms 4 and 5 installed on the seat 9 and built in the transmission case 2 constituting the vehicle body 3 are shifted by a single operation lever 17. The guide plate 14 of the operating lever 17 is attached to the link mechanism 22, 23 at the lower part of the operating lever 17 and the link mechanism 26, 27 on the vehicle body 3 side which is linked to the plurality of transmission mechanisms 4, 5, respectively. The link mechanisms 22 and 23 at the lower part of the operating lever 17 and the interlocking rods 24 and 25 rotatably provided on the support plate 7 are covered by the floor sheet 9. It has the following advantages:

Since the guide plate 14 of the operating lever 17 is attached to the side of the wheel fender 11 facing the seat 10, the wheel fender 11 can be reinforced.

Since the operating lever 17 is located on the side of the seat 10, operability is improved, and the interlocking rod connects the link mechanisms 22, 23 at the bottom of the operating lever 17 with the link mechanisms 26, 27 on the vehicle body 3 side. 2
4 and 25 are rotatable on the support plate 7, and are covered by the floor sheet 9, so that the leg area of the seat 10 is not narrowed by the interlocking rods 24, 25, etc. Getting on and off is convenient, and in particular, the interlocking rods 24 and 25, which are rotatably provided on the support plate 7, have their axes in the left-right direction of the vehicle body 3, so they are very easy to move in the height (up and down) direction. Can be made compact and interlocking rod 24,2
The link mechanism 2 at the bottom of the operating lever 17 is located on the outer end side of the control lever 17.
2, 23, link mechanism 26 on the vehicle body 3 side on the inner end side,
27 can be installed in a well-balanced manner, and in the case of a reverse type vehicle in which the seat 10 is installed so that the seat 10 can be freely changed and fixed in the front and rear positions, the floor seat 9 can be effectively utilized, especially when driving backwards. This has the advantage of providing extra legroom.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a perspective view, FIG. 2 is a front view, FIG. 3 is a plan view, and FIG. 4 is an elevational side view of FIG. 3. 2...Mission case, 3...Vehicle body, 4,5
...Transmission mechanism, 7... Support plate, 9... Floor seat, 10... Seat, 11... Wheel fender, 1
4... Guide plate, 22, 23, 26, 27... Link mechanism, 24, 25... Interlocking rod.

Claims (1)

[Scope of utility model registration request] A floor seat 9 having a seat 10 is attached to a support plate 7 attached to the side of the vehicle body 3, and wheel fenders 11 erected on both sides of the seat 10 are attached to the floor seat 9. In a device in which the transmission mechanisms 4 and 5 built in the transmission case 2 are shifted by an operating lever 17, a guide plate 14 for the operating lever 17 is attached to the side of the wheel fender 11 facing the seat 10 and is supported. Interlocking rods 24 and 25 are provided on the plate 7 and are rotatable about the axis with the axis in the left-right direction of the vehicle body 3.
Link mechanisms 22 and 23 at the lower part of the operating lever 17 are interlocked to the outer ends of the interlocking rods 24 and 25, and vehicle bodies linked to the transmission mechanisms 4 and 5 are connected to the inner ends of the interlocking rods 24 and 25. The third side lock mechanisms 26 and 27 are interlocked and connected, and the operating lever 17
The lower link mechanisms 22 and 23, the link mechanisms 26 and 27 on the vehicle body 3 side, and the interlocking rods 24 and 25 rotatably provided on the support plate 7 are covered by the floor sheet 9. Characteristic vehicle gear shift operation device.