JPH052345Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Industrial application field) The present invention relates to a pedal structure.

(Prior Art) Conventionally, this type of pedal structure is known, for example, from NISSAN Service Bulletin No. 335 "Nissan Forklift" (published by Nissan Motor Co., Ltd., May 1970), as shown in Fig. 4. There is. That is, the treadle 1 of the accelerator pedal P is rotatably supported on the upper surface of the floorboard 2 by the shaft supporting member 3, and is moved from the return position indicated by the solid line to the abutment member 4 on the floorboard 2 by the occupant's depression operation. It is designed to rotate until it reaches the end. Further, the footboard 1 is engaged with a link member 6A of a transmission link mechanism that operates the accelerator unit 5 via a stopper provided at its tip, which will be described below. It remains at the return position indicated by the solid line inside. The link member 6A itself is biased by the spring member 7 in a counterclockwise direction toward the position shown in the figure. That is, when the treadle 1 is depressed, the amount of depression is increased by the link members 6A, 6.
The signal is sequentially transmitted to the accelerator unit 5 via ports B, 6C, etc., and the opening degree of the throttle valve is adjusted.
In addition, in order to prevent the tread plate 1 from jumping up when heading to the return position from the depressed position where the tread plate 1 hits the abutment member 4 shown by the two-dot chain line in the figure,
An L-shaped stopper 8 extending like a cantilever from the lower surface of the tip of the footboard 1 engages with the tip locking piece 6b (extending perpendicularly to the figure) of the rod 6a of the link member 6A. , the step plate 1 is prevented from returning further from the return position in the clockwise direction.

In addition, in preparation for maintenance and inspection of the engine area, etc., the floorboard 2 is removable from the car body, and the accelerator pedal P can either be removed from the car body with its treadle 1 still pivotally supported by the floorboard 2, or After the floorboard 2 is removed, it is stored separately as a single unit (see FIG. 5a).

(Problem to be Solved by the Invention) However, in such a conventional pedal structure, a heavy object may be inadvertently placed on the treadle 1 while the accelerator pedal P is stored after the floorboard 2 is removed. Due to the cantilevered shape of the stopper 8, if a shock is applied to the stopper 8, bending deformation is likely to occur as shown in FIG. 5B.

The present invention was made to solve these conventional problems, and it adds geometrical reinforcement to the pedal stopper to improve rigidity, prevent deformation due to bending, etc. The purpose is to provide a pedal structure that protects against damage.

(Means for solving the problem) In order to solve the above problem and achieve the purpose,
The pedal structure according to the present invention includes a treadle whose one end is rotatably supported by the vehicle body, and an L provided on the bottom surface of the treadle.
In the pedal structure comprising a letter-shaped member, the L
The character-shaped member consists of a base end that projects from the treadle and an engaging end that extends from the base end toward the other end of the treadle, with the tip of the base end extending from the engaging end. It is characterized by protruding downward.

(Example) Hereinafter, an example in which the present invention is applied to a forklift pedal structure will be described with reference to the drawings. Note that the same reference numerals used in the conventional figures refer to the same or similar members.

In FIG. 1, reference numeral 10 denotes a footboard of an accelerator pedal P, the rear end of which is rotatably supported by a shaft support member 3 on a floorboard 2 that is removable from the vehicle body. As a fulcrum and a tread 1
0 can swing freely. At the tip of the footboard 10, a stopper 11 (L-shaped member) protrudes from the bottom surface toward the tip. Stoppa 1
1 has a shape in which two engaging ends 11b, 11b extend from a base end 11a that protrudes downward from the bottom surface of the footboard 10.
(shown vertically overlapping)
The rod 6a of the link member 6A is sandwiched between the two engaging ends 11b and 11b by their front open ends from both sides. Further, a locking piece 6b extending in the vertical direction in the figure at the tip end of the rod 6a is attached to the footboard 10.
and the pair of stopper-side engagement ends 11b, 11b, so that when the foot plate 10 is depressed, it acts on the rod 6a via the locking piece 6b, and conversely, the foot plate 10 is When the locking piece 6b is rotated back clockwise from the depressed position indicated by the two-dot chain line in the figure, the stopper side engaging ends 11b, 1
1b abuts against the tread plate 10 to prevent it from jumping up further in the clockwise direction from the return position indicated by the solid line.

Further, the engaging ends 11b, 11b of the stopper 11
are shaped at an acute angle θ shown in FIG.
The distal end of the proximal end 11a is the engaging end 1.
It protrudes downward from 1b and 11b. Therefore, as shown in FIG. 2, when the floorboard 2 is removed and stored on the floor G, even if the lower end of the base end 11a of the stopper 11 comes into contact with the floor G, the engaging end Since the lower surfaces of the portions 11b and 11b do not come into contact with the floor surface G, when weight or impact force is applied via the footboard 10, the rigidity of the stopper 11 against these external forces is reduced by the base end portion 11a. This can be almost compensated for only by

As described above, a gap is provided between the pair of engaging ends 11b, 11b of the stopper 11 and the footboard 10, and the tip of the gap is open, and the locking piece 6b is passed through the open end. Since the accelerator pedal P is inserted through the accelerator pedal P, it is possible to remove the accelerator pedal P together with the floorboard 2 from the vehicle body as necessary without removing the link member 6A or the like.

The structure of the link member 6A is such that the rear end of the rod 6a is connected to the bracket 13 on the front panel 12 side.
is rotatably supported via a support shaft 14, and is rotated counterclockwise by the biasing force of the spring member 7, using the support shaft 14 as a rocking fulcrum, toward the return position indicated by the solid line in FIG. energized to move. Also,
In FIG. 1, reference numeral 4 denotes an abutment member screwed into the floorboard 2 so as to protrude from the floorboard 2.
has a length sufficient to prevent the stopper 11 from coming into contact with the upper surface of the floorboard 2, and to prevent the stopper 11 from coming into contact with the upper surface of the floorboard 2 (double-dashed line in the figure).

Next, the operation of the pedal structure of the above embodiment will be explained.

A footboard 10 is attached to the locking piece 6b at the tip of the link member 6A.
The amount by which the treadle 10 abuts against the abutment member 4 on the floorboard 2 from the return position where the link members 6A, 6B,
The signal is transmitted to the accelerator unit 5 via 6C, and the opening degree of the throttle valve is adjusted.

During maintenance and inspection due to use over time, the accelerator pedal P is removed from the vehicle body together with the floorboard 2. Thereafter, the accelerator pedal P is stored while being connected to the floorboard 2, or is stored on the floor surface G while being separated from the floorboard 2. During such storage, heavy objects may be carelessly placed on the tread plate 10 of the accelerator pedal P, or impact force may be applied to the tread plate 10 of the accelerator pedal P.
Even if it acts on the stopper 11 through
1 can withstand external force due to the rigidity of its base end 11a, and can withstand strain due to bending deformation etc. without directly acting on the engaging ends 11b, 11b that protrude from the base end 11a onto the cantilever. The engaging end portions 11b, 11b can be protected from occurrence and damage.

Furthermore, although not shown in FIG. 1, a transmission or a brake, etc. are disposed under the floorboard 2 in the case of an engine vehicle, and a driving motor, etc. in the case of a battery vehicle. Therefore, the floorboard 2 is frequently removed for these daily inspections and maintenance (for example, checking the amount of oil, checking the state of wear of motor brushes, etc.). At this time, the gap between the pair of engaging ends 11b, 11b of the stopper 11 and the footboard 10 is open at its tip, and the locking piece 6b is inserted through the open end, so the link member 6A
The accelerator pedal P can be easily removed from the vehicle body together with the floorboard 2 without removing the other parts.

The accelerator pedals P ₁ , P ₂ , and P ₃ shown in FIGS. 3a, b, and c are all other embodiments of the present invention, and the accelerator pedals P ₁ of each of these embodiments are
~ _P3 as well, the same actions and effects as the accelerator pedal P of the first embodiment can be obtained. A description of each member of the accelerator pedals P ₁ to _{P 3} will be omitted by assigning the same reference numerals as each member of the first embodiment.

(Effects of the invention) As can be understood from the above, the pedal structure according to the invention allows the treadle of the pedal to Even if an unexpected impact or weight is applied to the link member, the proximal end of the engaging member is shaped to have enough rigidity to withstand these external forces, so it can be engaged with the link member. The engaging end portion can be protected from deformation or damage due to bending or the like.

Further, since the pedal structure according to the present invention is constituted by an L-shaped member having a base end projecting downward from the engaging end, a member for operating the accelerator unit is provided in the gap between the engaging end and the footboard. It can be engaged simply by inserting it through the pedal, and it can be disengaged by simply pulling out the pedal without removing the link member that operates the accelerator unit.

[Brief explanation of drawings]

Figure 1 is an assembly side view of the first embodiment of the pedal structure according to the present invention, which is adopted in an actual forklift machine, and Figure 2 shows the accelerator pedal of the first embodiment removed together with the floorboard and placed on the floor. Figures 3a to 3c are side views of the accelerator pedal of other embodiments, Figure 4 is an assembled side view of the conventional example, and Figures 5a and b are the conventional example. FIG. 2 is a side view of the accelerator pedal removed and stored on the floor, and a side view of the stopper bent and deformed by an external force. 2...Floor board, 4...Abutting member, 5...
...Accelerator unit, 6A, 6B, 6C... Link member, 6a... Rod, 6b... Locking piece, 10
...Treadboard, 11...Stopper (L-shaped member), 1
1a... Base end portion, 11b... Engagement end portion, P... Accelerator pedal.

Claims (1)

[Scope of utility model registration request] In a pedal structure that includes a treadle whose one end is rotatably supported by the vehicle body and an L-shaped member provided on the lower surface of the treadle, the L-shaped member is connected to a base end protruding from the treadle. It consists of an engaging end portion extending from the base end toward the other end of the treadle, and the tip of the base end portion is
A pedal structure characterized by protruding downward from an engaging end.