JPS6222885Y2 - - Google Patents

Description

[Detailed Description of the Invention] Regarding the locking structure of the pedal, the present invention aims to enable easy and quick locking and unlocking operations, and to prevent the pedal from becoming stiff when the pedal is locked.

To explain in more detail, conventionally, to lock the pedal, a manually operated locking device was installed alongside the pedal, but if the locking device was made smaller and simpler, the driver would have to bend down to operate the locking device. However, it is difficult to operate the locking device, especially when the driving space is narrow, and the pedal that is not used when locking protrudes greatly, making the pedal uncomfortable. To enable easy release by foot and to reduce the amount of protrusion of a pedal when locked.

Next, embodiments of the present invention will be described based on the drawings.

As shown in FIG.
A backhoe device consisting of a boom 4, an arm 5, and a bucket 6 is attached so as to be able to swing from side to side, and a boarding and driving section 7 and a driving section 8 are installed to constitute a work vehicle capable of excavation work and earth removal work. .

As shown in FIG. 2, a control valve V connected to a service port 9 for an appropriate attachment, such as one attached in place of the bucket 6, is configured to be operable by a pedal 10 provided on the boarding operation section 7. . To construct the pedal 10, a bearing member 10b is connected to a swinging lever 10a extending through a long hole opening in the operating step 11, and plate-shaped foot pedals 10c, 10 are provided at both ends, respectively.
The rocking lever 1 is rotated by rotating the rotating shaft 10d with the rotating shaft _10d with the axis P1 along the rocking direction of the rocking lever 10a and substantially orthogonal to the axis of the rocking lever 10a.
0a, and furthermore, the rotating shaft 10
d is rotatably supported on the swing lever 10a around the axis _P1 of the rotating shaft 10d, and the foot pedal 1 is attached to both ends of the rotating shaft 10d.
0c, 10c are provided in a state where their plate surfaces are inclined in a V-shape _with respect to the axis P ₁ of the rotating shaft 10d, and the closer to both ends the further away from the axis P ₁ it becomes. With the rotation operation of the both foot pedals 10c, 10
The foot pedal part 10 is configured to be freely switchable between an unused position in which both ends of c are close to the operating step 11 and a used position in which both ends are away from the operating step 11.
the stopper 10e for putting c into the operating position,
It is constructed so as to come into contact with the bearing member 10b and attached to the rotating shaft 10d, and is also constructed so that it can be hung on the foot in order to rotate the rotating shaft 10d.

The two-foot stepping portion 10c is arranged in a substantially inverted figure-eight shape in the use position, and as shown in FIG. 10c is close to the step 11 while covering the elongated hole opened in the step 11, and the valve V is maintained in the neutral position by the contact between the foot 10c and the step 11, and the valve V is moved upwardly from the step 11 of the pedal 10. The protrusion amount of the step 11 is reduced, and the elongated hole of the step 11 is closed to prevent dirt and the like from entering below the step 11. Also,
When the foot pedal part 10c is in a non-use position, the stopper 10e is configured to protrude upward and can be easily hooked onto the foot.

A friction ring 10f for appropriately suppressing the rotation of the rotating shaft 10d is interposed between the rotating shaft 10d and the bearing member 10b to prevent the foot pedal 10c from rotating unexpectedly when the pedal is operated. be.

The present invention is mainly applied to work vehicles for construction, transportation, agricultural use, etc., but it is applicable to any device or operated part.

In summary, the pedal lock structure according to the present invention has plate-shaped foot treads 10c and 1 at each end.
0c is attached to the upper end of the swinging lever 10a with its axis P ₁ along the swinging direction of the swinging lever 10a and substantially orthogonal to the axis of the swinging lever 10a, Furthermore, the rotating shaft 1
0d is rotatably supported on the swinging lever 10a around the axis _P1 of the rotational shaft 10d, and the foot pedals 10c, 10c attached to both ends of the rotational shaft 10d are supported so that the plate surface thereof is rotated. axis 10d
The two-foot stepping portions 10c _, 1 are provided so as to be inclined in a V-shape such that the ends thereof are further away from the axis _P1 with respect to the axis _P1 .
0c is configured to be freely switchable between an unused position in which both ends are close to the driving step 11 and a used position in which both ends are away from the operational step 11, and in the unused position, the both foot pedals 10c, 10c are
is located so as to cover the opening for swinging the swinging lever 10a, which is provided through the operation step 11.

That is, when locking and unlocking a pedal, the foot pedal 10 is pressed with one foot operating the pedal.
Since it is only necessary to rotate the pedal 10c, the operation can be performed easily and quickly even if the driving space is small.Furthermore, since the foot pedal 10c is rotated, the amount of pedal protrusion when not in use can be made smaller than when in use. This makes it possible to reduce the size of the pedal, thereby avoiding the inconvenient situation where the pedal is left unused, and furthermore, when the pedal is not in use, both foot pedals of the pedal block the opening of the step for the swing lever. It became difficult for mud etc. to get under the steps.

Note that although reference numerals are written in the claims section of the utility model registration for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.

[Brief explanation of the drawing]

The drawings show an example of the implementation of the pedal lock structure according to the present invention, FIG. 1 is a side view of a backhoe work vehicle with a dozer, FIGS.
The figure is a perspective view, and FIG. 3 is a partially cutaway front view. 10a... Swinging lever, 10c... Foot pedal part,
10d...Rotation axis, 11...Driving step, P ₁ ...
...axis core.

Claims (1)

[Scope of utility model registration request] Plate-shaped foot pedals 10c, 10c are provided at both ends, respectively.
A rotating shaft _10d having
The swing lever 10 is in a posture substantially orthogonal to the axis of 0a.
The rotating shaft 10d is attached to the upper end of the rotating shaft 10d.
The axis of the rotating shaft 10d with respect to the swing lever 10a
A foot pedal 10 is rotatably supported around P ₁ and is attached to both ends of the rotating shaft 10d.
c, 10c are provided so that their plate surfaces are inclined in a V-shape with respect to the axis P ₁ of the rotating shaft 10d, and the plate faces are further away from the axis P ₁ toward both ends, and around the axis P ₁ . With the rotation operation of the both foot pedals 10c, 10c
It is configured such that the position can be freely switched between an unused position in which both ends are close to the driving step 11 and a used position in which both ends are away from the operational step 11, and in the unused position, the both foot pedals 10c and 10c are The swing lever 1 installed through the operation step 11
A pedal lock structure, characterized in that it is configured to be positioned so as to cover an opening for 0a swinging.