JP2001039344A - Toe board for industrial vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve workability for maintenance by opening a machine base opening part without demounting a toe board. SOLUTION: A toe board 1; for blocking an opening part formed on the upper part of the machine base of an industrial vehicle, and also constituting the floor surface of a driver's cab; is composed of front and middle toe boards 2 and 3 to be fixed to the machine body, and in contrast to this, fitted slidably right and left respectively. A turnable position P2 for allowing vertical turning for the board 3, and a turn regulating position P1 for regulating vertical turning for the board 3 are provided within the slide range S of the board 3. The board 2 is provided with a holding part 4 for holding the board 3 into nearly a perpendicular condition when the board 3 is positioned at the position P1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toe board constituting a floor of a cab of an industrial vehicle.

[0002]

2. Description of the Related Art Conventionally, various service parts requiring maintenance such as a battery are accommodated in a machine base of an industrial vehicle such as a forklift, and an opening is formed in the upper part of the machine base for maintenance. . The opening is normally closed by a toe board constituting the floor of the cab. The toe board is provided so as to be detachable from the machine base. During maintenance, the toe board is removed from the machine base to open the opening, and service parts are repaired and inspected (Japanese Patent Laid-Open No. 8-282546).

[0003]

However, the above-mentioned conventional toe board has the following problems. That is, unless the toe board is removed from the machine base, the opening provided in the machine base cannot be opened. Therefore, in order to maintain the service parts stored in the machine stand, the toeboard must be removed. At this time, in order to save the trouble of lowering the removed toe board under the machine base,
Sometimes a toe board leans on the machine. In this case, not only does the toe board become an obstacle during the maintenance, but also the toe board must be prevented from falling down, resulting in a problem that the workability of the maintenance deteriorates.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and it is possible to keep the opening of the machine stand open without removing the toe board, thereby improving the maintenance workability. It is intended to provide.

[0005]

According to a first aspect of the present invention, there is provided a toe board for closing an opening formed in an upper part of a machine base of an industrial vehicle and forming a floor surface of a cab. And a middle toe board attached to the front toe board so as to be slidable in the left-right direction with respect to the front toe board. The middle toe board can rotate vertically in the sliding range of the middle toe board. A rotatable position and a rotation restricting position for restricting vertical rotation of the middle toe board are provided, and the front toe board is provided with the middle toe board when the middle toe board is positioned at the rotation restricting position. A toe board for an industrial vehicle is provided with a holding portion for holding the middle toe board in a substantially vertical state.

[0006] Most notably, in the present invention, the middle toe board is slidable left and right with respect to the front toe board so that the middle toe board can be located at either the rotatable position or the rotation restricting position. It is installed.

Next, the function and effect of the present invention will be described.
Normally, the middle toe board is positioned at the rotation restricting position and is kept substantially horizontal. The opening at the top of the machine base can be closed by the middle toe board in this state and the front toe board fixed to the machine base.

When the opening is opened for maintenance, the middle toe board is first slid to a rotatable position and the middle toe board is rotated until it is substantially vertical. Next, in this state, the middle toe board is slid to the rotation restricting position, and the middle toe board is held in a substantially vertical state by the holding portion. Thus, of the openings closed by the middle toe board and the front toe board, the part where the middle toe board is closed can be opened.

As described above, in the present invention, the opening can be opened by sliding and rotating the middle toe board while being attached to the front toe board. In addition, by holding the middle toe board substantially vertically by the holding portion, the opening can be kept open. Therefore, there is no need to remove the toe board from the machine base in order to keep the opening open, so that there is no fear that the removed toe board will interfere with the middle toe board during maintenance. Therefore, the workability of maintenance can be improved.

Next, as in the second aspect of the present invention, it is preferable that a detachable position where the middle toe board can be detached from the front toe board be provided in the slide range. In this case, the middle toe board can be detached from the front toe board as needed by positioning the middle toe board at a removable position.

Next, as in the third aspect of the present invention, a projection is provided at the front end of the middle toe board.
The projection has a through hole in the left-right direction, while the rear end of the front toe board has a notch wider than the width of the projection and one end of the notch. And a pin that is inserted into the through hole from
The middle toe board is disposed so as to be slidable in the left-right direction with respect to the front toe board by disposing the protrusion in the notch and inserting the pin into the through hole. It is preferable that the above-mentioned holding part is arranged at one end side of the head.

In this case, the protrusion can be moved from one end to the other end in the notch along the axis of the pin, and the protrusion can be pulled out of the holding portion. As a result, the projection can be rotated about the pin as the rotation center, so that the rotation of the middle toe board can be secured. Conversely, the projection can be moved from the other end to the one end in the cutout, and the projection can be accommodated in the holding portion. Thus, the rotation of the middle toe board can be restricted by locking the protrusion to the holding portion.

Next, as in the fourth aspect of the present invention, the projecting portion has an L-shaped cross section in which the front end is bent toward the back surface, and the holding portion projects below the base end. It is preferable that the tip has an L-shaped cross section bent backward. In this case, an L-shaped accommodation space that can slidably accommodate the projection can be provided between the holding portion and the pin only when the tip of the projection is directed downward or backward.

That is, in this case, the projection can be accommodated in the L-shaped accommodation space only when the tip of the projection is directed downward or backward. Therefore, while the protruding portion is housed in the L-shaped housing space,
The projection cannot rotate from a state in which the tip end faces downward to a state in which it faces rearward, and cannot rotate in the opposite direction. Therefore, the middle toe board can be prevented from rotating and the middle toe board can be securely held in a substantially horizontal or substantially vertical state by accommodating the projection in the L-shaped accommodation space.

Next, the width of the projection is W, the width of the notch is L, the length of the pin from one end of the notch is M, and the length of the pin is M. When the width of the holding portion from one end is N, these dimensional relationships are preferably N <M and N + W <L.

In this case, since N <M, the pin has a tip that protrudes toward the other end of the notch from the holding portion.
Therefore, the tip can be inserted into the through hole of the projection, so that the center of rotation of the projection can be reliably secured. Also,
Due to N + W <L, the notch has a space in which the protrusion can be moved to the other end of the notch than the holding part. Therefore, by moving the protrusion to the tip of the pin, it is possible to reliably prevent the protrusion from being locked to the holding portion. Therefore, since the above two conditions are satisfied,
Since the projection can be rotated at the tip of the pin, the rotation of the middle toe board can be reliably ensured.

Next, as in the sixth aspect of the present invention, it is preferable that the dimensional relationship further has a relationship of M + W <L. In this case, the notch has a space in which the protrusion can be moved to the other end of the notch with respect to the pin. Therefore, the protrusion can be extracted from the tip of the pin, so that the middle toe board can be securely attached and detached.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment A toe board of an industrial vehicle according to an embodiment of the present invention will be described with reference to FIGS. Toe board 1 of this example
9, as shown in FIG. 9, closes an opening 71 formed in the upper part of the machine base 7 of the battery-powered forklift as an industrial vehicle, and forms a floor surface of the cab 72. As shown in FIG. 1, the toe board 1 includes a front toe board 2 fixed to a machine base 7 by bolts, and a middle toe board 3 attached to the front toe board 2 so as to be slidable in the left-right direction.

As shown in FIGS. 1 and 2, a projection 31 is provided at the front end of the middle toe board 3, and
The protrusion 31 has a through hole 320 extending in the left-right direction. The shape of the protruding portion 31 is an L-shaped cross section in which the distal end portion 311 is bent toward the back side (downward). In addition, through hole 3
20 is formed by a pipe 32 fixed inside the corner of the projection 31. The pipe 32 has a hole diameter substantially equal to the diameter of the pin 22 described later.

On the other hand, as shown in FIG. 1, FIG. 3, and FIG.
A notch 21 wider than the lateral width W (FIG. 2) is provided, and a pin 22 inserted from one end (hereinafter, left end 211) of the notch 21 into the through hole 320 is provided. The pin 22 is a pipe 2 fixed to the front toe board 2.
By inserting the base end 221 into 3,
It is attached to the front toe board 2.

Then, as shown in FIG. 1, the projection 31 is arranged in the notch 21, the projection 31 is moved, and the pin 22 is inserted into the through hole 320. Is slidably arranged in the left and right direction.

In the sliding range S of the middle toe board 3, a detachable position P3 at which the middle toe board 3 can be attached to and detached from the front toe board 2, and a rotatable position for allowing the middle toe board 3 to rotate in the vertical direction. A position P2 and a rotation restricting position P1 for restricting vertical rotation of the middle toe board 3 are provided. In this example, the slide range S is shown in the range of the width L of the notch 21.

As shown in FIGS. 1, 3 and 4, when the projection 31 of the middle toe board 3 is located at the rotation restricting position P1, the middle toe board 3 is moved substantially horizontally or substantially. A holding section 4 for holding the holder in a vertical state is provided. The holding portion 4 is disposed on the left end 211 side in the cutout portion 21 and is configured to be able to accommodate the protrusion 31 when the middle toe board 3 is in a substantially horizontal or substantially vertical state.

That is, as shown in FIG. 4, the shape of the holding portion 4 is an L-shaped cross section that protrudes downward from the base end portion 42 and has a front end portion 41 bent backward. Also,
An L-shaped accommodation space 40 is provided between the holding portion 4 and the pin 22.
(FIG. 4C) is formed. L-shaped accommodation space 4
0 indicates a state in which the tip 311 of the protrusion 31 is directed downward (FIG. 5B) or a state in which the distal end 311 is directed rearward (FIG. 7B).
Only when the pin 22 is inserted through the through hole 320 in (c)), the protrusion 31 is formed to be slidably accommodated along the pin 22.

Since the holding portion 4 is provided separately from the front toe board 2, the base end portion 42 is fixed to the lower surface of the front toe board 2. However, the holding portion 4 is integrated with the front toe board 2. It may be provided (see FIG. 10).

In this embodiment, as shown in FIGS. 2 and 3, the width of the projection 31 is W, the width of the notch 21 is L, and the length of the pin 22 from the left end 211 of the notch 21 is M. , The width of the holding part 4 from the left end 211 of the notch 21 is N
, These dimensional relationships are N <M and M + W <L. Since N <M, the relationship of N + W <M + W holds, so that N + W <L
The relationship also satisfies the relationship.

Note that reference numeral 74 in FIG.
Reference numeral 5 denotes a counter balance, reference numeral 76 denotes a driver's seat, and reference numeral 77 denotes an engine hood. Although not shown, the battery type forklift has a cargo handling device such as a fork or a mast. Note that a gap provided between the step portion 73 of the machine base 7 and the toe board 1 for sliding the middle toe board 3 can be covered with a floor mat or the like.

Next, the opening 71 of the toe board 1 is used.
Will be described. Middle toe board 3
Normally, as shown in FIG. 5A, the protrusion 31 arranged in the notch 21 is located at the rotation restricting position P1. At this time, as shown in FIG. 5B, the middle toe board 3 has the tip 311 of the projection 31 abutted against the tip 41 of the holder 4 and is held in a substantially horizontal state by the holder 4. I have.

The horizontal state can be maintained by, for example, supporting the rear end (not shown) of the middle toe board 3 by the machine base 7, so that the front end 311 of the projection 31 is not necessarily held. It is not necessary to contact the tip 41 of the part 4. The opening 71 of the machine base 7 is closed by the middle toe board 3 held in a substantially horizontal state and the front toe board 2.

When the opening 71 is opened for maintenance such as replacement of a battery housed in the machine base 7 or water replenishment, first, FIG.
As shown in the figure, the middle toe board 3 is slid rightward until the protrusion 31 is located at the rotatable position P2. Then, as shown in FIGS. 6B and 6C, the middle toe board 3 is rotated until it becomes substantially vertical.

Next, as shown in FIGS. 7 (a) and 7 (b), the projection 31 is moved to the rotation restricting position P while maintaining the vertical position.
Slide the middle toe board 3 to the left until it is at 1. Then, as shown in FIG. 7 (c), in the L-shaped accommodation space 40, the tip 311 of the projection 31 is formed.
Is sandwiched between the tip portion 41 of the holding portion 4 and the pin 22, and the middle toe board 3 is held by the holding portion 4 in a substantially vertical state. As a result, of the opening 71 closed by the middle toe board 3 and the front toe board 2, the part where the middle toe board 3 is closed is opened. The opening 71 can be closed again in the reverse procedure.

Next, the operation and effect of this embodiment will be described. In this example, as shown in FIGS. 5 and 6, the opening 71 can be opened by sliding and rotating the middle toe board 3 while being attached to the front toe board 2. Further, as shown in FIG. 7, by holding the middle toe board 3 substantially vertically by the holding portion 4, the opening 71 can be kept open.

Therefore, it is not necessary to remove the toe board 1 from the machine base 7 in order to keep the opening 71 open, so that the removed toe board does not become an obstacle during maintenance. Also, the middle toe board 3 is
Therefore, there is no fear that the middle toe board 3 will fall down during maintenance. Therefore, the workability of maintenance can be improved.

As described above, the middle toe board 3
The front toeboard 2 is provided with a notch 21, a pin 22, and a holding portion 4 in addition to a projection 31 and a through hole 32 provided on the front toeboard 2. Therefore, as shown in FIG. 6A, the protrusion 31 is formed along the axis of the pin 22 at the left end 2 in the notch 21.
By moving from the 11 side to the right end 212 side, the protrusion 31 can be pulled out from the holding section 4. As a result, FIG.
(B), as shown in FIG. 6 (c), the projection 31 can be rotated about the pin 22 as a rotation center, so that the rotation of the middle toe board 3 can be ensured.

In this example, as shown in FIG. 3, since the dimensional relationship of N <M is satisfied,
2 has a tip 222 protruding toward the right end 212 side of the notch 21 from the holding part 4. Therefore, this tip 2
Since the protrusion 22 can be inserted into the through hole 320 of the protrusion 31, the center of rotation of the protrusion 31 can be reliably secured.

Since the dimensional relationship of N + W <L is satisfied, as shown in FIG. 6, the notch 21 has a space 213 to which the protrusion 31 can be moved to the right of the holding portion 4. Therefore, the tip 2 of the pin 22
By moving the projection 31 to 22, it is possible to reliably prevent the projection 31 from being locked to the holding unit 4. Therefore, since the above two conditions are satisfied, the projection 31 can be rotated at the tip end portion 222 of the pin 22 as described above, so that the rotation of the middle toe board 3 can be reliably ensured.

On the other hand, as shown in FIGS. 7A and 7B, the projection 31 is moved from the right end 212 to the left end 211 in the cutout 21 and the projection 31 is moved to the holding portion 4. Can be accommodated inside the corner. As a result, as shown in FIG. 7C, the tip 311 of the projection 31 is sandwiched between the tip 41 of the holding portion 4 and the pin 22 in the L-shaped accommodation space 40, and the projection 31 is held. The rotation of the middle toe board 3 can be reliably restricted by being locked to the portion 4.

In the slide range S, the removable position P is set.
3 is provided. Therefore, as shown in FIG. 8, the pipe 32 can be extracted from the tip end portion 222 of the pin 22 by sliding the middle toe board 3 to the right until the protrusion 31 is located at the detachable position P3. Therefore, the middle toe board 3 can be removed from the front toe board 2 as needed.

In this embodiment, since the dimensional relationship of M + W <L is also satisfied, the notch 21 can move the protrusion 31 to the right of the pin 22 as shown in FIG. It has a space 214. for that reason,
Since the pipe 32 of the protruding portion 31 can be pulled out from the tip end portion 222 of the pin 22, the detachment of the middle toe board 3 can be reliably ensured.

If the middle toe board 3 does not need to be detached, it is possible to satisfy N + W <L <M + W.
In this case, the pins 22 are inserted into the pipes 23 and the through holes 320 fixed to the front toe board 2 after the projections 31 are arranged in the cutouts 21, and the pins 22 are attached to the pipes 23.

The L-shaped accommodating space 40 is formed between the holding portion 4 and the pin 22 by making both the protrusion 31 and the holding portion 4 have an L-shaped cross section. for that reason,
The projection 31 can be accommodated in the L-shaped accommodation space 40 only when the tip 311 of the projection 31 is directed downward or backward. Therefore, while the projection 31 is housed in the L-shaped housing space 40, the projection 31
Can be rotated approximately 90 degrees from a state in which the tip 311 faces downward to a rearward state, or conversely, can rotate approximately 90 degrees from a state facing backward to a downward direction. Can not.

Therefore, the projection 31 is moved to the L-shaped accommodation space 4.
By storing the middle toe board 3 at 0, the middle toe board 3 can be prevented from rotating, and the middle toe board 3 can be securely held in a substantially horizontal or substantially vertical state.

In this embodiment, the projection 31 and the holding portion 4 are formed in the above-described shapes. Therefore, as shown in FIG. 10, a through hole 320 is formed in the flat protrusion 31, and the front toe board 2 and the middle toe board 3 are formed as compared with the case where the holding part 4 is provided integrally with the front toe board 2 by cutting. Plate thickness can be reduced. Therefore, the weight of the front toe board 2 and the middle toe board 3 can be reduced, so that the front toe board 2 can be easily attached to the machine base 7 and the middle toe board 3 can be easily opened and closed.

In this embodiment, in order to hold the middle toe board 3 in a more stable state, as shown in FIG. 9, two sets of projections 31 and through holes are provided on the left and right sides of the middle toe board 3 in total. In addition, an example is shown in which two sets of notches 21, pins, and holding parts are provided on the left and right sides of the front toe board 2 so as to face them. However, only one set of the protrusions 31, the notches 21 and the like can be provided at the center of each toe board.
More than one set can be provided.

In this embodiment, a battery type forklift is cited as an example of an industrial vehicle. However, the toe board 1 of this embodiment can be applied to a gasoline engine type forklift and various industrial vehicles.

[0046]

As described above, according to the present invention, it is possible to provide a toe board for an industrial vehicle in which the opening of the machine base can be opened without removing the toe board, thereby improving the workability of maintenance. it can.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a toe board according to an embodiment.

FIG. 2A is a plan view of the middle toe board, and FIG. 2B is a cross-sectional view taken along line AA of the embodiment.

FIG. 3 is a plan view of a front toe board in the embodiment.

FIG. 4 is a sectional view taken along the line BB in FIG.
(B) A sectional view taken along line CC, (c) a sectional view taken along line DD, and (d) a sectional view taken along line EE.

FIG. 5A is an explanatory plan view of the middle toe board held horizontally at the rotation restricting position in the embodiment, and FIG.
Sectional view along line FF.

6 (a) is a plan view of the middle toe board slid to a rotatable position, FIG. 6 (b) is a cross-sectional view taken along the line GG before turning, and FIG. 6 (c) is a cross-sectional view after turning. .

FIGS. 7A and 7B are explanatory plan views of the middle toe board rotated to a vertical state at a rotatable position, and FIGS. 7B and 7B are explanatory plan views of a middle toe board held vertically at a rotation restricting position in the embodiment; Figure, (c) HH sectional view.

FIG. 8 is an explanatory plan view of the middle toe board slid to a removable position in the embodiment.

FIG. 9 is a perspective view of an industrial vehicle according to the embodiment.

FIG. 10 is an exploded perspective view of a toe board of another shape according to the embodiment.

[Explanation of symbols]

 1. . . 1. toe board, . . Front toe board, 21. . . Notch, 22. . . Pin, 3. . . Middle toe board, 31. . . Projection, 320. . . 3. through-hole, . . Holding part, 7. . . Machine stand, 71. . . Opening, S.E. . . Slide range, P1. . . Rotation restriction position, P2. . . Pivotable position, P3. . . Detachable position, W. . . Lateral width of protrusion, L. . . Width of cutout, M. . . N. Length of pin from left edge of notch . . The width of the holding part from the left end of the notch,

Continued on the front page F term (reference) 3D003 AA15 BB14 BB15 CA14 CA19 DA01 3F333 AA02 BB01 CA19 DA06 DA07 DB05

Claims (6)

[Claims] 1. A toe board which closes an opening formed in an upper part of a machine base of an industrial vehicle and forms a floor surface of a driver's cab, wherein the toe board comprises: a front toe board fixed to the machine body; It consists of a middle toe board that can be slid in the left and right direction with respect to the toe board.
The middle toe board is provided with a rotatable position for enabling vertical rotation and a rotation restricting position for restricting vertical rotation of the middle toe board. A toe board for an industrial vehicle, further comprising a holding portion for holding the middle toe board in a substantially vertical state when the middle toe board is located at the rotation restricting position. 2. The toeboard of an industrial vehicle according to claim 1, wherein a detachable position is provided in the slide range so that the middle toeboard can be attached to and detached from the front toeboard. 3. The middle toe board according to claim 1, wherein the middle toe board has a protrusion at a front end thereof, and the protrusion has a through hole in a left-right direction.
At the rear end of the front toe board, a notch wider than the lateral width of the projection is provided, and a pin is inserted from one end of the notch into the through hole. The middle toe board is disposed so as to be slidable in the left-right direction with respect to the front toe board by being disposed in the notch and inserting the pin through the through hole. A toe board for an industrial vehicle, wherein a holding portion is provided. 4. The projection according to claim 3, wherein the projection has an L-shaped cross section in which a front end is bent toward the rear surface, and the holding portion protrudes downward from a base end and has a front end rearward. A toe board for an industrial vehicle characterized by having an L-shaped cross section bent. 5. The notch according to claim 4, wherein the width of the projection is W, the width of the notch is L, the length of the pin from one end of the notch is M, and the holding is from one end of the notch. A toe board for an industrial vehicle, wherein, when the width of the part is N, these dimensional relationships are N <M and N + W <L. 6. The toe board for an industrial vehicle according to claim 5, wherein the dimensional relationship further has a relationship of M + W <L.