JP3395722B2 - Industrial vehicle toe board - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a toe board constituting a floor surface of a driver's cab in an industrial vehicle.

[0002]

2. Description of the Related Art Conventionally, various service parts requiring maintenance such as a battery are housed inside a machine frame of an industrial vehicle such as a forklift, and an opening is formed in the upper part of the machine frame for maintenance. . Normally, the opening is closed by a toe board that constitutes the floor surface of the cab. The toe board is detachably attached to the machine base, and during maintenance, the toe board is removed from the machine base to open the opening, and service parts are repaired or inspected (Japanese Patent Laid-Open No. 8-282546).

[0003]

[Problems to be Solved] However, the above conventional toe board has the following problems. That is, the toe board cannot be opened unless the toe board is removed from the machine base. Therefore, the toe board must be removed for maintenance of the service parts stored in the machine base. At this time, in order to save the trouble of lowering the removed toe board under the machine base,
The toe board is sometimes leaned against the machine base. In this case, not only the toe board is an obstacle during maintenance, but also the toe board needs to be prevented from falling down, which causes a problem that maintenance workability is deteriorated.

The present invention has been made in view of the above conventional problems, and the opening portion of the machine base can be left open without removing the toe board, and the toe board of the industrial vehicle can be improved in workability of maintenance. Is to provide.

[0005]

According to a first aspect of the present invention, there is provided a toe board which closes an opening formed in an upper part of a machine frame of an industrial vehicle and constitutes a floor surface of a driver's cab, wherein the toe board is the machine frame. A front toe board fixed to the front toe board and a middle toe board slidably attached to the front toe board in the left-right direction. The middle toe board can be vertically rotated within the sliding range of the middle toe board. A rotatable position and a rotation restriction position for restricting the vertical rotation of the middle toe board are provided, and the middle toe board is rotatable.
Can be rotated up and down by sliding to the position
On the other hand, slide to the above rotation restriction position.
The vertical rotation is restricted by
Further, the front toe board is provided with a holding portion for holding the middle toe board in a substantially horizontal or substantially vertical state when the middle toe board is positioned at the rotation restricting position. It is located on the toe board of an industrial vehicle.

What is most noticeable in the present invention is that 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 both the rotatable position and 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 held in a substantially horizontal state. The middle toe board in this state and the front toe board fixed to the machine base can close the opening in the upper part of the machine base.

When the opening is opened for maintenance, first, the middle toe board is slid to a rotatable position, and the middle toe board is rotated until it is in a substantially vertical state. Then, in this state, the middle toe board is slid to the rotation restricting position, and the holding section holds the middle toe board in a substantially vertical state. As a result, of the openings that are 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 it is attached to the front toe board. Further, by holding the middle toe board substantially vertically by the holding portion, the opening can be left open. Therefore, it is not necessary to remove the toe board from the machine base in order to keep the opening open, so there is no concern that the removed toe board will be an obstacle during the maintenance or the middle toe board will fall over. Therefore, the workability of maintenance can be improved.

Next, as in the second aspect of the present invention, it is preferable that the slide range is provided with a detachable position at which the middle toe board can be attached to and detached from the front toe board. In this case, the middle toe board can be removed from the front toe board if necessary by positioning the middle toe board at the removable position.

Next, as in the invention of claim 3, a protrusion is provided at the front end of the middle toe board, and
The protrusion has a through hole extending in the left-right direction, while the rear end of the front toeboard is provided with a notch wider than the lateral width of the protrusion and one end of the notch. There is a pin that can be inserted into the through hole from
By disposing the protrusion in the cutout and inserting the pin into the through hole, the middle toe board is slidable in the left-right direction with respect to the front toeboard, and in the cutout. It is preferable that the holding portion is disposed on one end side of the.

In this case, the protruding portion can be pulled out from the holding portion by moving the protruding portion from one end side to the other end side in the cutout portion along the axis of the pin. As a result, the protrusion can be rotated about the pin as the center of rotation, so that the middle toe board can be rotated. Further, conversely, the protrusion can be moved from the other end side to the one end side in the notch, and the protrusion can be housed in the holding portion. As a result, the protrusion can be locked to the holding portion and the rotation of the middle toe board can be restricted.

Next, as in the invention of claim 4, the projecting portion has an L-shaped cross section in which the tip portion is bent toward the back surface side, and the holding portion projects downward from the base end portion. It is preferable that the tip end portion has an L-shaped cross section that is bent backward. In this case, an L-shaped accommodation space can be provided between the holding portion and the pin so that the protrusion can be slid and accommodated only when the tip of the protrusion is directed downward or rearward.

That is, in this case, the protrusion can be accommodated in the L-shaped accommodating space only when the tip of the protrusion is directed downward or rearward. Therefore, while accommodating the protrusion in the L-shaped accommodation space,
It is not possible to rotate the protrusion from the state in which the tip end faces downward, to the state in which it is rearward, or in the opposite direction. Therefore, by storing the protrusion in the L-shaped storage space, rotation of the middle toe board can be prevented, and the middle toe board can be reliably held in a substantially horizontal or substantially vertical state.

Next, as in the invention of claim 5, the lateral width of the protrusion is W, the lateral width of the notch is L, the length of the pin from one end of the notch is M, and the notch of the notch is When the lateral width of the holding portion from one end is N, it is preferable that these dimensional relationships have a relationship of N <M and N + W <L.

In this case, since N <M, the pin has a tip portion projecting to the other end side of the cutout portion with respect to the holding portion.
Therefore, since the tip portion can be inserted into the through hole of the protrusion, the center of rotation of the protrusion can be reliably ensured. Also,
From N + W <L, the notch has a space in which the protrusion can be moved to the other end side 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 by the holding portion. Therefore, since the above two conditions are satisfied,
Since the protrusion can be rotated at the tip of the pin, the rotation of the middle toe board can be reliably ensured.

Next, as in the invention of claim 6, 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 side of the notch than the pin. Therefore, the protrusion can be pulled out from the tip of the pin, so that the middle toe board can be securely attached and detached.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiment Mode A toe board for an industrial vehicle according to an embodiment mode of the present invention will be described with reference to FIGS. Toe board 1 of this example
As shown in FIG. 9, it closes the opening 71 formed in the upper part of the machine base 7 in the battery-powered forklift as an industrial vehicle and constitutes the 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 slidably attached to the front toe board 2 in the left-right direction.

As shown in FIGS. 1 and 2, a protrusion 31 is provided on the front end of the middle toe board 3, and
A through hole 320 is provided in the protrusion 31 in the left-right direction. The shape of the protrusion 31 is an L-shaped cross section in which the tip 311 is bent to the back surface side (downward). Also, through hole 3
20 is formed by a pipe 32 fixed inside the corner of the protrusion 31. The pipe 32 has a hole diameter substantially the same as the diameter of the pin 22 described later.

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

Then, as shown in FIG. 1, the protrusions 31 are arranged in the notches 21, and the protrusions 31 are moved to insert the pins 22 into the through holes 320, whereby the middle toe board 3 is moved to the front toe board 2. It is arranged so that it can slide in the left-right direction.

In the sliding range S of the middle toe board 3, a detachable position P3 where the middle toe board 3 can be attached to and detached from the front toe board 2 and a pivotable position that allows the middle toe board 3 to pivot in the vertical direction. A position P2 and a rotation restriction position P1 for restricting the vertical rotation of the middle toe board 3 are provided. In this example, the slide range S is shown in the range of the lateral width L of the cutout 21.

Further, as shown in FIGS. 1, 3 and 4, the middle toe board 3 is provided on the front toe board 2 substantially horizontally or substantially when the protruding portion 31 of the middle toe board 3 is located at the rotation restricting position P1. A holding portion 4 for holding the 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 capable of accommodating the protruding portion 31 when the middle toe board 3 is placed in a substantially horizontal or substantially vertical state.

That is, as shown in FIG. 4, the holding portion 4 has an L-shaped cross-section, which projects downward from the base end portion 42 and has its 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.4 (c)) is formed. L-shaped storage space 4
0 indicates a state in which the tip portion 311 of the protrusion 31 is directed downward (FIG. 5B) or a state in which it is directed rearward (FIG. 7).
Only when the pin 22 is inserted into the through hole 320 in (c), the protrusion 31 is formed to be slidable along the pin 22.

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

Further, in this example, as shown in FIGS. 2 and 3, the lateral width of the protrusion 31 is W, the lateral 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 portion 4 from the left end 211 of the notch portion 21 is N
In such a case, these dimensional relationships are N <M and M + W <L. Note that since N <M, the relationship of N + W <M + W is established, so N + W <L
The relationship of is also satisfied.

Reference numeral 74 in FIG. 9 is a pillar, and reference numeral 7
Reference numeral 5 is a counter balance, reference numeral 76 is a driver's seat, and reference numeral 77 is an engine hood. Although not shown, the battery-powered forklift has a cargo handling device such as a fork and a mast. The space 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 formed by the toe board 1
The opening procedure 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, in the middle toe board 3, as shown in FIG. 5B, the tip end 311 of the protrusion 31 is brought into contact with the tip end 41 of the holding part 4, and the middle toe board 3 is held in a substantially horizontal state by the holding part 4. There is.

Since this horizontal state can be maintained by supporting the rear end portion (not shown) of the middle toe board 3 by the machine base 7, for example, the front end portion 311 of the protrusion 31 is not always retained. It is not necessary to abut the tip portion 41 of the portion 4. The middle toe board 3 held in a substantially horizontal state and the front toe board 2 close the opening 71 of the machine base 7.

When the opening 71 is opened for maintenance such as replacement of the battery housed in the machine base 7 and replenishment of water, first, FIG.
As shown in FIG. 5, the middle toe board 3 is slid to the right until the protrusion 31 is located at the rotatable position P2. Then, as shown in FIGS. 6 (b) and 6 (c), the middle toe board 3 is rotated until it becomes a substantially vertical state.

Then, as shown in FIGS. 7 (a) and 7 (b), the protrusion 31 is kept in the substantially vertical state, and the protrusion 31 is in the rotation restricting position P.
Slide the middle toe board 3 to the left until it is in position 1. Then, as shown in FIG. 7C, in the L-shaped accommodation space 40, the tip 311 of the protrusion 31 is formed.
Is sandwiched between the tip portion 41 of the holding portion 4 and the pin 22, and the holding portion 4 holds the middle toe board 3 in a substantially vertical state. As a result, of the opening 71 that is 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 by the procedure reverse to the above.

Next, the function and effect of this example 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 left open.

Therefore, since the toe board 1 does not need to be removed from the machine base 7 in order to keep the opening 71 open, the removed toe board does not interfere during maintenance. In addition, the middle toe board 3 has a holding portion 4
Since it is held substantially vertically by, there is no concern that the middle toe board 3 will fall over during maintenance. Therefore, the workability of maintenance can be improved.

As described above, the middle toe board 3
The projection portion 31 and the through hole 32 are provided in the front toe board 2, and the notch portion 21, the pin 22, and the holding portion 4 are provided in the front toe board 2. Therefore, as shown in FIG. 6A, the protrusion 31 is formed along the axis of the pin 22 in the left end 2 of the notch 21.
The protrusion 31 can be extracted from the holding portion 4 by moving from the 11 side to the right end 212 side. As a result,
As shown in (b) and (c) of FIG. 6, since the protrusion 31 can be rotated around the pin 22 as the center of rotation, the rotation of the middle toe board 3 can be ensured.

Further, in this example, as shown in FIG. 3, since the dimensional relationship of N <M is satisfied, the pin 2
2 has a tip portion 222 protruding to the right end 212 side of the cutout portion 21 with respect to the holding portion 4. Therefore, this tip 2
Since 22 can be inserted into the through hole 320 of the protrusion 31, the center of rotation of the protrusion 31 can be reliably ensured.

Since the dimensional relationship of N + W <L is satisfied, the notch 21 has a space 213 on the right side of the holding portion 4 in which the protrusion 31 can be moved, as shown in FIG. Therefore, the tip 2 of the pin 22
By moving the protruding portion 31 to 22, the locking of the protruding portion 31 to the holding portion 4 can be reliably avoided. Therefore, since the above two conditions are satisfied, the protrusion 31 can be rotated at the tip 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 contrary, as shown in FIGS. 7 (a) and 7 (b), the protrusion 31 is moved from the right end 212 side to the left end 211 side in the cutout portion 21, and the protrusion 31 is held. It can be stored 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 holder 4 and the pin 22 in the L-shaped accommodation space 40 to hold the projection 31. The rotation of the middle toe board 3 can be reliably regulated by being locked to the portion 4.

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

Further, in this example, since the dimensional relationship of M + W <L is also satisfied, as shown in FIG. 8, the notch 21 can move the protrusion 31 to the right of the pin 22. It has a space 214. for that reason,
Since the pipe 32 of the protrusion 31 can be pulled out from the tip portion 222 of the pin 22, it is possible to reliably secure the attachment and detachment of the middle toe board 3.

If it is not necessary to remove the middle toe board 3, N + W <L <M + W can be set.
In this case, after the protrusion 31 is arranged in the notch 21, the pin 22 is inserted into the pipe 23 and the through hole 320 fixed to the front toe board 2, and the pin 22 is attached to the pipe 23.

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

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

Further, in this example, the projection 31 and the holding portion 4 are formed in the above shapes. Therefore, as shown in FIG. 10, as compared with the case where the through hole 320 is formed in the flat plate-like protrusion 31 and the holding portion 4 is integrally provided on the front toe board 2 by cutting, the front toe board 2 and the middle toe board 3 are The 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 opened and closed.

Further, in this embodiment, in order to hold the middle toe board 3 in a more stable state, as shown in FIG. 9, two protrusions 31 and one through hole are provided on each side of the middle toe board 3 in total. At the same time, an example is shown in which two sets of the notch 21, the pin, and the holding part are provided on the left and right sides of the front toe board 2 so as to face them. However, the protrusion 31, the notch 21 and the like can be provided in only one set at the center of each toeboard, or a total of 3
It is also possible to provide more than one set.

In this example, a battery type forklift is cited as an example of an industrial vehicle, but the toe board 1 of this example 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 left open without removing the toe board and the workability of maintenance can be improved. it can.

[Brief description of 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 according to the embodiment, and FIG. 2B is a sectional view taken along the line AA of FIG.

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

FIG. 4 (a) is a sectional view taken along line BB in FIG.
(B) C-C line arrow sectional view, (c) DD line arrow sectional view, (d) E-E line arrow sectional view.

FIG. 5 is a plan explanatory view of a middle toe board horizontally held at a rotation restricting position in the embodiment example;
FF line sectional drawing.

6A and 6B are a plan explanatory view of a middle toe board slid to a rotatable position, FIG. 6B is a sectional view taken along line GG before rotation, and FIG. 6C is a sectional view after rotation. .

FIG. 7A is a plan view of a middle toe board rotated to a vertical state at a rotatable position in the embodiment, and FIG. 7B is a plan view of a middle toe board vertically held at a rotation restricting position. Drawing, (c) HH sectional view taken on the line.

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 in the embodiment.

FIG. 10 is an exploded perspective view of another toe board in the embodiment.

[Explanation of symbols]

1. ． ． Toe board, 2. ． ． Front toe board, 21. ． ． Notch, 22. ． ． pin, 3. ． ． Middle toe board, 31. ． ． protrusion, 320. ． ． Through hole, 4. ． ． Holding part, 7. ． ． Machine stand, 71. ． ． Aperture, S. ． ． Slide range, P1. ． ． Rotation restriction position, P2. ． ． Rotatable position, P3. ． ． Detachable position, W. ． ． Width of the protrusion, L. ． ． Width of notch, M. ． ． The length of the pin from the left end of the cutout, N. ． ． The width of the holding part from the left edge of the notch,

Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B62D 25/20 B66F 9/075

Claims (6)

(57) [Claims] 1. An opening formed in an upper part of a base of an industrial vehicle.
Toe board that closes the floor and constitutes the floor of the cab
At The toe board is a front toeboad fixed to the machine base.
And the slide to the left and right with respect to the front toe board.
It consists of a middle toe board that can be attached idly,
The slide range of the middle toe board is
-Rotable position that enables vertical rotation of the board
And regulate the vertical rotation of the middle toe board
There is a rotation restriction position,The middle toe board is slid to the rotatable position.
It becomes possible to rotate in the vertical direction by
Up and down by sliding to the above rotation restriction position
It is configured so that the rotation in the direction is restricted, And, the front toe board has the middle tobo
When the cord is positioned at the above-mentioned rotation restricting position, the middle tobog
The cardAlmost horizontal orA holding device to keep it in a substantially vertical state.
Tobo of an industrial vehicle characterized by having a holding part
De. 2. The toe board of an industrial vehicle according to claim 1, wherein the slide range is provided with a detachable position where the middle toe board can be attached to and detached from the front toe board. 3. The middle toe board according to claim 1 or 2, wherein a protrusion is provided at a front end portion of the middle toe board, and a through hole is provided in the protrusion in the left-right direction.
At the rear end portion of the front toe board, a notch portion wider than the lateral width of the protrusion is provided, and a pin that is inserted from one end of the notch into the through hole is provided. By disposing the pin in the notch and inserting the pin into the through hole, the middle toe board is slidably arranged in the left-right direction with respect to the front toe board, and at the one end side in the notch. A toe board for an industrial vehicle having a holding portion. 4. The projection according to claim 3, wherein the protrusion has an L-shaped cross-section with the tip bent toward the back surface, and the holding portion projects downward from the base and the tip is rearward. A toe board for an industrial vehicle, which has an L-shaped cross-section that is bent at the same time. 5. The lateral width of the protrusion, the lateral width of the cutout is L, the length of the pin from one end of the cutout is M, and the holding from the one end of the cutout according to claim 4. A toeboard for an industrial vehicle, wherein the dimensional relationship of these parts is N <M and N + W <L, where N is the lateral width of the part. 6. The toeboard for an industrial vehicle according to claim 5, wherein the dimensional relationship further has a relationship of M + W <L.