JP2796497B2 - Step-over device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a step-over device which is applied to, for example, a step portion existing at a construction site or the like and enables a moving body such as a transport vehicle to pass over the step portion.

[0002]

2. Description of the Related Art As a conventional device of this kind, there has been a so-called stepping device for a step as shown in FIGS. In the drawing, reference numerals 1a and 1b denote step plates formed of, for example, a metal plate or a thick veneer plate, which have a predetermined size in accordance with the heights Ha, Hb, etc. of the steps 2a, 2b to be applied. Was selected and used.

[0003]

SUMMARY OF THE INVENTION
Heights Ha, Hb of the steps 2a, 2b to be applied
It is necessary to prepare a plurality of types having a size suitable for the above-mentioned processes, and furthermore, in a normal case, they are discarded after use, so that material costs and manufacturing costs are increased, and economic loss is large. In addition, the structure is often a single plate, and the structure is simple and easy to manufacture. On the other hand, for example, when a heavy truck or the like passes through, it is likely to be deformed and needs to be replaced in a short time. In many cases.

An object of the present invention is to provide the following functions and effects.
An object of the present invention is to provide a device for jumping over a step. (1) irrespective of the height, etc. of the step portion to be applied, is excellent in a single type of well by preparing what, yet can der be reused repeatedly Ri economy. And yes
Movable plate head and step surface due to upward rotation of moving plate
There is no increase in the gap between the two and no adverse effect is caused.

(2) In addition to having the advantages described in (1) above,
Detrimental effects due to the stepped part of the device for climbing over the stepped part itself
Does not occur.  (3) In addition to the advantages described in (1) above, the fixed plate
Presents a simplified formRatioRelatively small and lightweight,For transportation etc.
It will be convenient.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems and to achieve the object, a step-over device of the present invention is configured as follows. (1) The step-over device of the present invention is applied to a step portion existing at a construction site or the like, and is a step-over device which enables a moving body such as a transport vehicle to pass over the step portion. A fixed board body that is provided so that the front end can be installed close to the step surface in the step section, and a tail portion is pivotally supported at the base end of the fixed board body, and the head is at the distal end of the fixed board body. A movable board provided so as to be openable and closable in the vertical direction; and a movable board provided near the tip of the fixed board so as to be able to undulate, and is selectively erected in accordance with the height of the stepped portion. A plurality of supports having different height dimensions provided so as to be able to support the head of the movable platen at a set height position in a state, and selectively standing up the plurality of supports
Optionally, the axis of the movable platen with respect to the fixed platen
Means for variably setting the supporting position, and characterized by including a
Have . (2) The device for climbing over a step portion according to the present invention is the device according to the above (1), wherein the fixed plate body is provided at a base end of the fixed plate body.
Inclined surface on top to eliminate steps present at base end of
A step-eliminating body having (3) The device for climbing over a step portion according to the present invention is the device according to the above (1), wherein each base end of the plurality of supports has a coaxial structure provided relatively rotatably. And each tip is rotatable about the same axis.

[0007]

[0008]

FIG. 1 is a perspective view showing the structure of a device for climbing over a stepped portion according to a first embodiment of the present invention, and FIG. FIG. 3 is a plan view and FIG. 3 is an explanatory view of how to use the step-over device according to the embodiment.

As shown in FIGS. 1 and 2, the step-over device of this embodiment is applied to, for example, a step portion 2 (not shown in FIGS. 1 and 2) existing at a construction site or the like. This is a device that enables a moving body such as a transport vehicle to pass over the stepped portion 2 and pass through. 1 and 2
In the figure, 10 is a fixed board, 20 is a movable board, and 30 is a support.

The fixed board 10 is mainly composed of, for example, a rectangular frame 13 using an L-shaped metal member, and the front end portion 11 is provided with a step surface (a vertical step surface, an inclined step surface) at the step portion 2. (Included).

The movable board 20 is mainly composed of a rectangular frame 23 also using, for example, an L-shaped metal member, and its tail 22 is attached to the base end 12 of the fixed board 10 by a support shaft 24. It is pivoted. The head 21 is provided so that it can be opened and closed with respect to the distal end portion 11 of the fixed body 10 in the vertical direction. On the upper surface of the rectangular frame 23, a tread member 25 having an appropriate uneven pattern is stretched. 2
Reference numerals 6a and 26b are reinforcing rims using L-shaped metal members.

The support 30 comprises a plurality of (two in this embodiment) supports 31 and 32 having different heights.
These supports 31 and 32 are provided in the vicinity of the front end of the fixed plate body 10 so as to be able to rise and fall, and are selectively erected in accordance with the height of the stepped portion 2. The head 21 is provided so as to be supported at a set height position.

Each of the supports 31 and 32 comprises a pair of right and left columns 31L, 31R and 32L, 32R. Note that 32L and 32R are connected by a connecting rod 33. As shown in FIG.
L, 31R and the second support columns 32L, 32R.
Are fixed to the respective shafts 41 and 42 of the shaft body 40 having a coaxial structure provided rotatably relative to each other by fixing means such as welding. Thus, each tip V of the first support 31L, 31R and the second support 32
Each end W of L and 32R is rotatable about the same axis O.

The locking members 34L, 3L are arranged so that the first columns 31L, 31R which are erected do not fall down due to vibration or the like.
4R (only 34R is shown) protrudes from the outer surface of the side wall of the rectangular frame 23. Similarly, the second support 32L, which has been erected,
Locking members 35L, 35R (only 35L is shown) are protruded from the inner surface of the side wall of the rectangular frame 23 so as to prevent the 32R from falling down due to vibration or the like.

At the base end 12 of the fixed board 10, a step-eliminating body 50 having an inclined surface on the upper surface for eliminating the step of the base end 12 of the fixed board 10 is attached. A step board member 51 having an appropriate uneven pattern is stretched on the inclined surface of the step eliminating body 50.

A support shaft 2 for rotatably supporting the movable platen body 20
Reference numeral 4 indicates that the position of the support can be variably set in accordance with the selective standing state of the supports 31, 32. That is, for example, a plurality of (two in the present embodiment) bearing grooves G1 and G2 are provided at the upper end edge of the rectangular frame 13 of the fixed board body 10 as shown in FIGS. The support shaft 24 can be replaced with the bearing groove G1 or G2 depending on whether the support 31 or the support 32 is raised.

Next, a method of using the step-over device according to this embodiment configured as described above will be described with reference to FIG.
Description will be made with reference to (b) and (c) as appropriate. When the step portion 2 to be applied is a relatively small step portion 2a as shown in FIG. 3A, both of the supports 31 and 32 are set to a state in which they are protruded inside the fixed plate body 10, The movable board 20 is in a state of falling on the fixed board 10. By doing so, the head 21 of the movable platen 20 is made to coincide with the upper flat surface Fa of the step 2a, and the step-over device is adapted to the step 2a.

If the step 2 to be applied is a middle step 2b as shown in FIG. 3B, the shorter first step 2b is used.
The support 31 of the movable plate 20 is set in the upright state,
1 is lifted up to the first height position above the fixed board 10. By doing so, the head 21 of the movable board 20 is made to coincide with the upper flat surface Fb of the step 2b, and the device for moving over the step is adapted to the step 2b.

When the step portion 2 to be applied is a relatively high step portion 2c as shown in FIG. 3C, the longer second support 32 is not in the upright state, and the movable platen 20 with the head 21 above the fixed plate body 10
Up to the height position. By doing so, the head 21 of the movable platen body 20 is made to coincide with the upper flat surface Fc of the stepped portion 2c, and the step-over device is mounted on the stepped portion 2c.
c.

When the second support 32 is used, for example, as shown in FIG.
4 is moved from the bearing groove G1 of the fixed board 10 to G2, and the position of the movable board 20 is slid from the solid line position to the broken line position.

The configuration, operation and effect of the above embodiment are summarized as follows. (1) The device for climbing over a stepped portion of this embodiment is applied to a stepped portion 2 existing at a construction site or the like, and a stepping over a stepped portion enabling a moving body such as a transport vehicle to pass over the stepped portion 2 is enabled. In the device, the tip 11 is connected to the step 2
A fixed plate 10 provided so as to be able to be installed close to the stepped surface of the fixed plate 10 and a tail 22 at the base end 12 of the fixed plate 10
And the head 21 is attached to the distal end 11 of the fixed plate body 10.
A movable board 20 provided so as to be capable of opening and closing legs in the up and down direction, and a movable board 20 provided up and down in the vicinity of the distal end of the fixed board 10 so as to be selectively erected according to the height of the stepped portion 2. The head 21 of the movable plate 20 is operated and
And a plurality of supports 30 having different height dimensions provided so as to be able to be supported at a set height position.

Therefore, in the device for climbing over the stepped portion of the present embodiment, the height of the stepped portion 2 and the like are set in a state where the front end portion 11 of the fixed board 10 is installed close to the stepped surface of the stepped portion 2 to be applied. The plurality of supports 30
Of the movable board 2
If the head 21 of 0 is supported at the set height position, the movable platen 20 will exhibit a required inclined state on the fixed platen 10, and a moving body such as a transport vehicle will move the stepped portion 2 It is possible to get over and pass smoothly. Thus, regardless of the height of the step portion 2 to be applied, it is sufficient to prepare a single type of device, and it is possible to reuse the device repeatedly, and an economical step-over device that is excellent in step efficiency is provided. can get. (2) The device for moving over a stepped portion according to the present embodiment is the device described in the above (1), wherein the fixed plate 10 and the movable plate 20
Are mainly composed of the rectangular frames 13 and 23.

Therefore, in the device for moving over a stepped portion according to the present embodiment, even if a moving body such as a large transport vehicle passes through and a large load is applied, the load is received by the rectangular frames 13 and 23, so that it is easy. Does not deform. Thus, a step-over device that has excellent mechanical strength and can withstand long-term use can be obtained. (3) The device for climbing over a step portion according to the present embodiment is the device described in the above (1), wherein each base end of the plurality of supports 30 is
Shaft 4 having a coaxial structure provided relatively rotatably
0, each of which is attached to each of the shafts 41 and 42, and each of the tip portions is rotatable about the same axis.

Therefore, in the device for climbing over the stepped portion of the present embodiment, the plurality of supports 30 are attached to the respective shafts 41 and 42 of the shaft 40 having the coaxial structure. Can be installed on the fixed board 10 in a compact manner so as to be able to undulate. Thus, the fixed plate body 10 has a simplified form, and a relatively small, lightweight, and convenient device for moving over a step can be obtained. (4) The device for climbing over a step portion according to the present embodiment is the device described in (3) above, wherein the plurality of supports 30 are each composed of a pair of columns 31L, 31R and 32L, 32R. 31L, 31R and 32L, 32R
Each base end of each shaft 41 of the shaft body 40 having a coaxial structure,
42, respectively.

Therefore, in the step-over device of this embodiment, the movable plate 20 is supported at the tips of the columns 31L, 31R and 32L, 32R, that is, at local points. Even if the movable platen 20 has a slight distortion or inclination, the load of the movable platen 20 is equally shared and supported by the respective columns. For this reason, there is no possibility that the head 21 of the movable platen 20 will rattle on the support 30. Also, if one pillar, for example, 31L, is raised and lowered, the other pillar 31R follows and follows this, so that the lifting operation is simple. Thus, even if the fixed board 10 or the movable board 20 has a slight distortion or inclination, the movable board 20 is stably supported on the fixed board 10 and the step of raising and lowering the support 30 is simple. A crossover unit is obtained. (5) The device for climbing over a step portion according to the present embodiment is the device described in the above (1), wherein the step of the base end portion 12 of the fixed plate 10 is eliminated at the base end 12 of the fixed plate 10. A step-eliminating body 50 having an inclined surface on the upper surface is provided.

Therefore, in the device for climbing over the stepped portion of the present embodiment, the stepped portion corresponding to the thickness generated at the base end portion 12 of the fixed plate body 10 is eliminated, so that the stepped portion 2 is used for moving objects such as small trucks. There is no risk that traffic will be blocked.
Thus, the stepped portion 2 of the stepped portion overcoming device itself
A device for climbing over a stepped portion which does not cause adverse effects due to the above is obtained. (6) The device for moving over a step portion according to the present embodiment is the device described in (1) above, wherein the axis of the movable platen 20 with respect to the fixed platen 10 depends on the state of the selective standing of the plurality of supports 30. Means for variably setting the support position are provided.

Therefore, in the device for climbing over a stepped portion of the present embodiment, even when a plurality of supports 30 having a large height is selected and raised, the pivoting position of the movable plate 20 is supported. By variably setting the fixed board body 10
The position of the movable platen 20 relative to is adjusted, so that the head 21 of the movable platen 20 can be adjusted so as not to be largely separated from the step surface of the step portion 2. Thus, there is provided a step-over device which does not cause any adverse effect due to the expansion of the gap between the head 21 of the movable plate 20 and the step surface of the step 2 due to the rotation of the movable plate 20. (7) The device for climbing over a step portion of this embodiment includes the following modifications.

The support 30 is not formed of a pair of right and left columns, but is formed of a single rectangular plate. -A support that is self-supporting by the action of a spring.

[0029]

According to the present invention, the following effects are obtained.
It is possible to provide a device for climbing over a step portion having an effect . (1) irrespective of the height, etc. of the step portion to be applied, is excellent in a single type of well by preparing what, yet can der be reused repeatedly Ri economy. And yes
Movable plate head and step surface due to upward rotation of moving plate
There is no increase in the gap between the two and no adverse effect is caused.

(2) In addition to the advantages described in (1) above,
Detrimental effects due to the stepped part of the device for climbing over the stepped part itself
Does not occur.  (3) In addition to the advantages described in (1) above, the fixed plate
Presents a simplified formRatioRelatively small and lightweight,For transportation etc.
It will be convenient.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the configuration of a step-over device according to an embodiment of the present invention.

FIG. 2 is a plan view showing a main part of the device for climbing over a stepped portion according to the embodiment, partially cut away.

FIG. 3 is an explanatory diagram of how to use the step-over device according to the embodiment.

FIG. 4 is a view showing a configuration of a stepping device for a step according to a conventional example.

[Explanation of symbols]

2 ... Stepped portion 10 ... Fixed board 11 ... Tip 12
Base end 13: rectangular frame using L-shaped metal member 20: movable plate 21: head 22 ...
Tail 23 ... Rectangular frame using L-shaped metal member 24 ...
Support shaft 25 Stepping plate members 26a, 26b Reinforcing rim 30 Supports 31, 32 First and second support 31L, 31R Pair of left and right supports 32L, 32R Pair of left and right supports 40 Shaft 41 Reference numerals 42, each axis 50, step-eliminating body 51, step plate member

Claims (3)

(57) [Claims] 1. The method is applied to a step existing at a construction site or the like,
Do not allow moving objects such as trucks to pass over the step
In a device for climbing over a step, it is possible to set the tip part close to the step surface of the step
A fixed board provided on the base, a tail portion of which is pivotally supported at a base end of the fixed board, and a head of which is fixed to the fixed board.
It is installed so that the legs can be opened and closed vertically with respect to the tip of the platen.
A movable platen, which is provided so as to be able to undulate in the vicinity of the tip of the fixed platen,
It is selectively raised according to the height of the step, and is in the standing state
The head of the movable platen at a set height position.
A plurality of supports of different heights provided so as to be held
When,According to the selective standing state of the plurality of supports,
Variably set the pivot position of the movable platen relative to the platen
Means,  A device for climbing over a step, comprising: 2. The base end of the fixed board body is provided at the base end of the fixed board body.
With an inclined surface on the upper surface to eliminate the step existing in the part
2. A step-eliminator is provided.
The device for climbing over a step portion according to the above. 3. A base end of each of the plurality of supports is attached to each axis of a shaft having a coaxial structure provided rotatably relative to each other, and each end is centered on the same axis. The step-over device according to claim 1, wherein the device is rotatable.