JP7164337B2 - Lifting platform and traveling vehicle - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lifting platform used to move a load such as a ceiling accessory to a high place, and a traveling vehicle equipped with the platform.

For example, when lifting (conveying) loads such as piping materials and other ceiling-related equipment laid under the ceiling from the floor surface to the vicinity of the ceiling surface, a lifting device that can be freely raised and lowered from the vicinity of the floor surface to the vicinity of the ceiling surface is used. A traveling vehicle capable of traveling on a floor or the like is used (see Patent Documents 1 to 5). A loading table (workbench) on which a load or a worker can be loaded is fixed in a horizontal plane, for example, to the upper end of the lifting device.

Elevating devices are broadly classified into hydraulic cylinder type that expands and contracts in the axial direction and scissors type that expands and contracts like a pantograph. The height of the workbench can be adjusted, for example, by adjusting the amount of extension of a hydraulic cylinder for raising and lowering the lifting device (see Patent Documents 6 to 8).

Japanese Utility Model Laid-Open No. 5-77197 (claim 1, paragraphs 0008 to 0013, FIGS. 1 and 4) Japanese Utility Model Laid-Open No. 6-63592 (claim 1, paragraphs 0008 to 0015, FIGS. 1 to 3) Japanese Utility Model Laid-Open No. 6-66186 (paragraph 0008, FIGS. 1 and 3) Japanese Utility Model Laid-Open No. 7-15693 (paragraphs 0007 to 0012, FIGS. 1 and 4) Japanese Utility Model Laid-Open No. 6-76289 (claim 1, paragraphs 0008 to 0012, FIGS. 1 and 2) Japanese Patent Application Laid-Open No. 62-111896 (Gazette, page 3, upper right column, lines 15 to 18, FIG. 1) Japanese Patent Application Laid-Open No. 4-189685 (Gazette, page 2, upper right column, line 16 to lower left column, line 2, Fig. 1) Japanese Utility Model Laid-Open No. 6-3993 (paragraph 0007, FIG. 2)

It should be noted that the shape, height, size, etc. of the loads transported from the vicinity of the floor surface at the same work site are often not uniform. If different workbenches or lifting devices (traveling vehicles) are prepared according to the shape and height of each load, the number of types of workbenches and lifting devices increases, and work efficiency tends to decrease. Not realistic. Changing the workbench for each type of load is inefficient in loading and unloading, and changing the lifting device also lowers the efficiency of use of the lifting device, which is uneconomical.

Under these circumstances, the capacity and scale of the lifting device, that is, the total length of the lifting device (the height of the workbench) when the lifting device is fully extended (raised), should be determined based on the installation height of the main load. become. However, in that case, it is assumed that the lifting device used will be suitable for lifting most of the loads, but the height will not be enough to lift some of the loads to the vicinity of the ceiling surface. be done.

On the other hand, for example, the lifting device is provided with the ability to lift a part of the load to the vicinity of the ceiling surface, and when the main load requiring a smaller extension amount is lifted, the extension amount of the hydraulic cylinder can be adjusted. It may be possible to adjust the height of the workbench. However, changing the height of the workbench in accordance with the height dimension of the load is complicated and reduces work efficiency.

In view of the above background, the present invention copes with situations in which the lifting height is different, and when the lifting device is fully extended, the distance from the loading table to the ceiling surface is insufficient, and some of the loads are lifted to the vicinity of the ceiling surface. The present invention proposes a lifting/loading platform of a form that enables lifting and a traveling vehicle on which it is mounted.

The lifting and loading platform according to claim 1 comprises a base member supported so as to maintain a constant posture on the upper part of a lifting device that can be vertically moved on a traveling vehicle, and a base member that can be detachably fixed to the base member. and an attachment member capable of loading a load, and an intermediate member detachably fixable to the base member and detachably fixable to the attachment member on an upper portion,
Either the attachment member or the intermediate member is selectively fixed to the base member ,
The base member, the attachment member, and the intermediate member are distinguished in the long side direction and the short side direction, and the attachment member and the intermediate member are attached to the base member on both sides in the long side direction of the base member. It is a constitutional requirement that the attachment member can be engaged with the intermediate member in the long side direction of the intermediate member on both sides in the long side direction of the base member .
A lifting loading platform according to claim 2 is the lifting loading platform according to claim 1, wherein engaging members are arranged on both sides in the long side direction on the upper surface side of the base member, and on the lower surface side of the attachment member. an engaging member that engages with each other in the long side direction of the base member is disposed on the engaging member at a position corresponding to the engaging member of the base member of the base member of the base member on the lower surface side of the intermediate member; An engaging member that engages with the engaging member of the base member in the longitudinal direction of the base member is arranged at a position corresponding to the engaging member, and the attachment member of the attachment member on the upper surface side of the intermediate member is arranged. A configuration requirement is that a receiving member that engages with the engaging member in the long side direction of the base member is arranged at a position corresponding to the engaging member.

There are two types of elevating devices, one is a hydraulic cylinder type that vertically extends and retracts in the axial direction, and the other is a scissors type that vertically extends and retracts in a pantograph style. In the case of the scissors type, the distance between the tips of a pair of lift arms that make up a pantograph and that intersect each other expands and contracts in response to expansion and contraction in the vertical direction. is pivotally supported by the base member, and the other upper end is supported so as to be horizontally slidable (linearly movable) along rails formed on the base member. The phrase "able to maintain a fixed posture" in claim 1 means that the base member corresponding to the above-described loading table or a receiving table for receiving the loading table can maintain, for example, a horizontal state above the lifting device.

'The attachment member can be detachably fixed to the base member' means that the attachment member 3 is directly fixed to the base member 2 as shown in FIG. 2, but may be fixed to an intermediate member 4 fixed to the base member 2. In either case, the attachment member 3 is used as a loading platform in relation to supporting the load 10 .

'The intermediate member can be detachably fixed to the base member' means that the intermediate member 4 is directly fixed to the base member 2 as shown in FIG. Say that there is a case. Since the attachment member 3 can be detachably fixed to the upper portion of the intermediate member 4, when the intermediate member 4 is directly fixed to the base member 2, the attachment member 3 is detachably fixed on the intermediate member 4. be. In this case, the intermediate member 4 serves to position the attachment member 3 above the base member 2 by the height of the intermediate member 4 .

The attachment member 3 and the intermediate member 4 are selectively fixed to the base member 2, and the state of use in which the attachment member 3 is fixed to the base member 2 and the state of use in which the attachment member 3 is fixed to the intermediate member 4 can be switched. The attachment member 3 as a loading table can have an appropriate height corresponding to at least two types of loads 10 having different height dimensions. In other words, the height from the base member 2 of the attachment member 3 supported by the base member 2 can be changed depending on whether or not the intermediate member 4 is used. The number of intermediate members 4 prepared for loads 10 having different height dimensions is not limited to one type, and a plurality of types of intermediate members 4 having different height dimensions and the like may be prepared. The heavy loading table 1 corresponds to two or more kinds of loads 10 having different heights.

For example, as shown in FIG. 3, the total length of the lifting device 6 (the height of the attachment member 3) when the lifting device 6 is fully extended (lifted) is determined according to the maximum height dimension of the load 10 assumed. In this case, the total length of the lifting device 6 is set (adjusted) so that the upper surface of the load 10 can approach the ceiling surface while avoiding collision between the load 10 and the ceiling surface when the lifting device 6 is fully extended. ), or is selected. The height of the load 10 at this time includes the case where a large number or a large amount of the load 10 are piled up in multiple stages.

On the other hand, when the height dimension of the load 10 is relatively small as shown in FIG. By interposing the intermediate member 4 between the base member 2 and the attachment member 3, the load 10 can be brought close to the ceiling surface while avoiding collision between the load 10 and the ceiling surface.

In this manner, a method of using the intermediate member 4 or a method of not using it can be selected according to the height dimension of the load 10, and depending on the height of the intermediate member 4, the load 10 having different height dimensions can be used. By being able to cope with this, it becomes possible to lift up to the vicinity of the ceiling surface a part of the load 10 whose distance from the attachment member 3 as a loading table to the ceiling surface is insufficient when the lifting device 6 is fully extended.

Further, since it is not necessary to adjust the amount of expansion and contraction of the lifting device 6 (hydraulic cylinder) according to the height dimension of the load 10, there is no need to rely on complicated work such as fine adjustment of the hydraulic cylinder. In addition, since most of the work of transporting (raising) the load 10 can be concentrated on the attachment member 3 of two types of usage, the attachment member 3 and the intermediate member 4 can be selected for each detailed shape and height of the load 10. The attachment/detachment work of the attachment member 3 is made more efficient than when the forms are changed.

The method of fixing the attachment member 3 and the intermediate member 4 to the base member 2 is not limited. ) can be restrained, the fixing method to the base member 2 can be simplified. Therefore, if the attachment member 3 and the intermediate member 4 are fixed to the base member 2 while being engaged with each other in two horizontal directions (claim 3 ), safety against separation in the two horizontal directions can be ensured. However, horizontal separation of the attachment member 3 and the intermediate member 4 relative to the base member 2 is avoided.

By avoiding separation in two horizontal directions, the attachment member 3 and the base member 2, or the intermediate member 4 and the base member 2 can be fixed (connected) with a minor fixing (connection) method that restrains separation in the vertical direction. becomes possible. For example, if an attempt is made to fix the attachment member 3 and the intermediate member 4 to the base member 2 on the premise that there is no constraint on horizontal movement, the attachment member 3 and the intermediate member 4 are fixed (joined) while constraining the horizontal movement. Must. In this connection, the fixing method must be a fastening method that does not cause looseness in the fixed portion (contact surface) in the horizontal direction, such as bolt connection.

On the other hand, if the attachment member 3 and the intermediate member 4 are engaged with each other in two horizontal directions between the base member 2 and the relative movement of the attachment member 3 and the intermediate member 4 in two horizontal directions is restricted (claim 3 ) In two horizontal directions, the attachment member 3 and the intermediate member 4 are in the same state as already joined to the base member 2 . Therefore, the attachment member 3 and the base member 2, or the intermediate member 4 and the base member 2 need only be fixed (coupled) so as not to be separated from each other in the vertical direction.

As a result, for example, at the point where the attachment member 3 and the base member 2 or the intermediate member 4 and the base member 2 are engaged in the horizontal direction, a connector 7 such as a pin or a bolt that penetrates both in the horizontal direction is inserted, and the connector is inserted. Detachable fixation is possible only by retaining 7. The “horizontally engaged portion” means a portion where the attachment member 3 and the base member 2, or the intermediate member 4 and the base member 2 are in contact with each other at vertical surfaces as shown in FIGS. point to

In addition, as shown in FIG. 6, when the load 10 has a curved surface such as a cylindrical shape, the load 10 is prevented from falling from the attachment member 3 when the load 10 rises. It is necessary to take measures such as bundling to prevent this. However, since the bundling is done manually, it takes time and effort to take measures to prevent each load from falling and to release them, which is not efficient. In preparation for such a case, if the restraining member 9 that restrains the movement of the load 10 in the width direction is detachably fixed to the attachment member 3 (claim 4 ), the fall prevention measures such as individual tying are unnecessary. becomes possible.

"Restraining the movement of the load in the width direction" means restraining the load 10 from sliding and rolling in the width direction on the attachment member 3 while the load 10 is being raised. Specifically, as shown in FIG. 6, the restraint member 9 includes a holding member 92 such as a bar or a frame member that sandwiches the load 10 in the width direction. Or say to limit the amount of movement. In this case, since the stability of the load 10 is ensured by the holding member 92 restraining the movement of the load 10 in the width direction while the load 10 is ascending, the load is held for the purpose of stabilizing the load 10 . The work of individually binding the 10 to the attachment member 3 and the work of releasing it are eliminated, and the transport efficiency of the load 10 is improved.

A lifting platform 1 composed of a base member 2, an attachment member 3, and an intermediate member 4 is mounted on a lifting device 6 of a traveling vehicle 5, and integrated with the lifting device 6 to provide a traveling vehicle with a lifting platform 1. (Claim 5 ).

A base member on which a lifting platform is supported so as to maintain a fixed posture on the upper part of the lifting device, an attachment member that can be detachably fixed to the base member, and an attachment that can be detachably fixed to the base member and is attached to the top Since the member includes an intermediate member that can be detachably fixed, a method using or not using the intermediate member can be selected according to the height dimension of the load. As a result, it becomes possible to lift a part of the load, which is short of the distance from the attachment member to the ceiling surface when the lifting device is fully extended, to the vicinity of the ceiling surface.

(a) is an elevational view showing a state in which the base member of the lifting platform is fixed to the lifting device of the traveling vehicle and the lifting device is extended, (b) is a side view of (a), and (c) is a lifting device. FIG. 10 is a side view showing the running vehicle when the device is retracted; Fig. 10 is a perspective view showing a state when the attachment member is assembled on the base member; FIG. 11 is a perspective view showing a state in which a load having a large height dimension is placed on the attachment member when the attachment member is fixed to the base member; FIG. 10 is a perspective view showing how the intermediate member is assembled on the base member, the attachment member is assembled on the intermediate member, and the restraint member is assembled on the attachment member. (a) is a perspective view showing how the intermediate member, the attachment member, and the restraining member shown in FIG. 4 are combined in advance, and then the intermediate member is combined with the base member; is a perspective view when viewed from the upper side of (a), showing a joined state between the and the intermediate member. (a) is a perspective view showing a state in which four rod-shaped holding members are fixed to a restraining member at different intervals, and a cylindrical load is placed between the holding members with small intervals. and (b) is a perspective view showing a state in which a cylindrical load is placed between holding members with a large interval. FIG. 4 is a perspective view showing a state in which the upper end of one of the uppermost lift arms constituting the lifting device is pivotally supported by the base member; FIG. 11 is a perspective view showing a state in which the upper end of the other uppermost lift arm that constitutes the lifting device is horizontally slidably supported along rails formed on the base member; FIG. 10 is a perspective view showing the relationship between the engaging member of the base member and the engaging member of the intermediate member, and the relationship between the receiving member of the intermediate member and the engaging member of the attachment member when the intermediate member is fixed to the base member; . FIG. 10 is a perspective view showing a state when the attachment member is placed on the receiving material of the intermediate member in the case of FIG. 9;

1-(a) to (c) show a base member 2 supported so as to maintain a constant posture on the upper part of a lifting device 6 that can be vertically moved on a traveling vehicle 5, and a base member 2 that can be detachably attached to the base member 2. A relationship between a lifting and loading table 1 having a fixable attachment member 3 and an intermediate member 4 detachably fixable to a base member 2 and having the attachment member 3 detachably fixed on the top thereof, and a lifting device 6. indicates Either the attachment member 3 or the intermediate member 4 is selectively fixed to the base member 2 , and the load 10 is loaded on the attachment member 3 regardless of which one is fixed.

The traveling vehicle 5 includes a vehicle body 50 equipped with traveling devices 51 such as wheels and crawlers for traveling on a floor surface or a road surface, and a base frame 52 fixed to the upper surface of the vehicle body 50 and supporting the lifting device 6. The lifting device 6 is supported on the frame 52 so as to be able to move up and down. A power source 53 such as a battery for driving the traveling device 51 is mounted on the vehicle body 50 . Although the drawing shows an example in which the lifting device 6 is of a scissors type, it may be of a hydraulic cylinder type that extends and retracts in the axial direction with the axial direction oriented vertically.

In the case of the scissors type, the lifting device 6 is composed of a pair (single stage) or a plurality of pairs (multiple stages) of lift arms 61, 61 that intersect each other, and the pair of lift arms 61, 61 that intersect at the same height are the intersecting portions. are connected (pivotally supported) to each other so as to be rotatable about a horizontal axis. When there are a plurality of pairs, the vertically adjacent ends of each pair of lift arms 61, 61 are also connected (pivotally supported) to each other so as to be rotatable about a horizontal axis. Construct a pantograph (parallel link).

A pair of two lift arms 61, 61 are assembled in a cross shape when viewed in an upright plane. A pair of cross-shaped lift arms 61, 61 are three-dimensionally assembled by being pivotally supported by a connecting member 62 that serves as a horizontal axis at the intersection. When the lifting device 6 is composed of a pair of lift arms 61, 61, the pantograph has one stage, and when composed of a plurality of pairs of lift arms 61, 61, the pantograph has a plurality of stages. When there are a plurality of pairs of lift arms 61, the ends of the three-dimensionally assembled cross-shaped lift arms 61, 61 are also pivotally supported by the connecting member 62, which serves as a horizontal axis, so that the height direction (vertical direction) ) can be assembled in multiple stages.

The opening and closing of the pair of lift arms 61, 61, that is, the lifting and lowering of the lifting device 6 is performed between the base frame 52 and one of the lift arms 61, or the lower of the lift arms 61, 61 that are vertically adjacent to each other. It is operated by expanding and contracting a hydraulic cylinder 63 or the like installed between the lift arm 61 on the side and the lift arm 61 on the upper side.

Two lift arms 61, 61 positioned on one side in the direction of expansion and contraction when the lifting device 6 moves up and down, out of the uppermost pair of four lift arms 61, 61 that directly support the base member 2. A connecting member 62 connecting the upper ends is pivotally supported by brackets 21, 21 fixed to the lower surface side of the base member 2, as shown in FIG. A connecting member 62 connecting the upper ends of the other lift arms 61, 61 slides horizontally (linearly) along a pair of parallel rails 22, 22 formed on the lower surface side of the base member 2, as shown in FIG. Movement) Pivotally supported by sliders 23, 23 which are freely arranged. The rail 22 is oriented in a direction in which the distance between the upper ends changes (expands and contracts) when the pair of lift arms 61, 61 expands and contracts.

Since all the sets of lift arms 61, 61 constituting the lifting device 6 move in the same manner, one set of four lift arms 61 positioned at the bottom of the lifting device 6, 2 positioned on one side in the expanding/retracting direction A connecting member 62 connecting the lower ends of the book lift arms 61 , 61 is pivotally supported by a bracket (not shown) fixed to the upper surface side of the base frame 52 . A connecting member 62 that connects the lower ends of the other lift arms 61, 61 is pivotally supported by a slider (not shown) that is horizontally slidable along a rail formed on the upper surface of the base frame 52. As shown in FIG.

The base member 2 is positioned at the top of the lifting device 6, and is supported at four points by four lift arms 61 that expand and contract in the lengthwise direction of the rail 22. Therefore, when the lifting device 6 is extended, The amount of movement of the slider 23 moving within the rail 22 is limited so that the stability of the base member 2 is not impaired. When the lifting device 6 is of a hydraulic cylinder type, the base member 2 is supported by one of the cylinders or the like that constitute the lifting device 6 in a cantilever manner.

A main body 20 of the base member 2 is formed in a flat plate shape having a thickness as a whole by combining steel plates, steel materials, etc. on the upper surface side of the pair of rails 22 and 22 and joining them by welding or the like. An attachment member 3 and an intermediate member 4 are mounted on the top and fixed detachably. In the drawing, the main body 20 has a rectangular planar shape, but the planar shape of the main body 20 itself, excluding the rails 22, 22, is not limited to a rectangular shape and may be arbitrary.

The attachment member 3 is placed on the base member 2 as shown in FIG. The main body 30 of the attachment member 3 is basically thick by combining a vertical member 31 and a horizontal member 32 such as a steel material arranged facing two horizontal directions in a lattice shape or the like and joining them together by welding or the like. It is formed in a flat plate shape. However, the planar shape of the main body 30 itself is arbitrary. In the drawing, since the planar shape of the main body 30 is rectangular in accordance with the shape of the main body 20 of the base member 2, the vertical members 31 refer to constituent members in the length direction (long side direction) of the main body 30 for convenience. A horizontal member 32 indicates a constituent member in the width direction (short side direction) .

In the drawings, it is assumed that the load 10 protrudes from the periphery (edge) of the attachment member 3 for the purpose of increasing the load capacity of the load 10 or enlarging the loadable range. However, the form of the attachment member 3 does not matter, such as a fall prevention fence projecting around the flat plate. FIG. 3 shows a state in which a load 10 having the maximum height assumed or a load 10 having a small height are placed in multiple stages on the entire surface of a flat plate-like main body 30 . In the case of the example shown in FIG. 3 in which the load 10 is placed directly on the attachment member 3, a wire such as a belt is loaded from at least one of the vertical member 31 and the horizontal member 32 that constitute the main body 30 of the attachment member 3. The load 10 can also be fixed by crossing the object 10 or the like.

In order to ensure safety in the state where the attachment member 3 is fixed to the base member 2, the attachment member 3 is attached to the base member 2 horizontally between the base member 2, that is, in the longitudinal direction of the base member 2. Suitably, they are fixed in engagement with each other in the width direction. In the drawings, as shown in FIGS. 2, 4, and 9, for example, at two locations on the upper surface side of the main body 20 of the base member 2, the attachment member 3 is overlapped in one horizontal direction, for example, the length direction of the base member 2, and engaged. The engaging members 24, 24 are integrated by welding or the like.

On the other hand, two points corresponding to the engaging members 24, 24 on the lower surface side of the main body 30 of the attachment member 3 are engaged with the engaging members 24, 24 of the base member 2 in one horizontal direction, for example, in the longitudinal direction of the base member 2. The mating engaging members 33, 33 are integrated by welding or the like. The drawing shows an example in which the attachment member 3 and the base member 2 are engaged in the longitudinal direction of the base member 2 . In this case, when the engaging member 24 of the base member 2 and the engaging member 33 of the attachment member 3 are engaged with each other, the stability against separation due to lifting, for example, depends on the distance between the two engaging members 24, 24. , or the larger the distance between the two engaging members 33, 33, the higher the height. However, the method of engaging the attachment member 3 and the base member 2 in one horizontal direction (longitudinal direction of the base member 2) is not limited to this.

The engaging member 24 of the base member 2 has, for example, a shape such as a straight line (rod) that is continuous in the axial direction, or an intermittent block shape, and a cross section that is plate-shaped, mountain-shaped (L-shaped), or box-shaped (groove). For example, as shown in FIG. 2, they are fixed on both sides of the upper surface of the main body 20 in the longitudinal direction so as to face each other in the parallel direction. The block-shaped case is also fixed in the same way. Similarly, the engaging member 33 of the attachment member 3 has a linear (rod) shape continuous in the axial direction or an intermittent block shape. It is fixed to the lower surface of 30 in a position to engage the engaging member 24 in the longitudinal direction of the body 20 . In the illustrated example, the engagement members 24 and 33 are engaged in the length direction of the base member 2, and the axial direction of the engagement members 24 and 33 is oriented in the width direction of the base member 2. When engaging also in the width direction of the member 2 , the axial direction of the engaging members 24 and 33 faces the length direction of the base member 2 .

In the drawing, when the two engaging members 33, 33 are engaged with the two engaging members 24, 24, the engaging members 24, 24 are located outside of the engaging members 33, 33 in the longitudinal direction of the main body 20. The two engaging members 24, 33 are combined so that the engaging members 24, 33 are located on both sides of the engaging members 24, 24 in the longitudinal direction. Sometimes. By engaging the engaging members 33 , 33 with the engaging members 24 , 24 , the horizontal movement of the attachment member 3 is restrained in any direction along the length of the base member 2 .

As shown in FIG. 9, on both sides of the engaging member 33 in the axial direction, the one horizontal direction (the width of the base member 2) crosses (perpendicularly) the length direction of the base member 2 in the illustrated case. In order to engage the base member 2 with the attachment member 3 in the direction), the body 20 of the base member 2 is sandwiched from both sides in the width direction when combined with the base member 2, and the body 20 is pressed from both sides in the width direction to the inside (the center in the width direction). The engaging pieces 33a, 33a for engaging the wire side) are integrally protruded from the engaging member 33 in a hanging state. However, the method of engaging the attachment member 3 and the base member 2 in the width direction of the base member 2 is not limited to this. By engaging the engaging pieces 33a, 33a with the main body 20, the horizontal movement of the attachment member 3 is restrained in any direction in the width direction of the base member 2. As shown in FIG.

When the attachment member 3 and the base member 2 are engaged in two horizontal directions, when the main body 30 of the attachment member 3 overlaps on the main body 20 of the base member 2, the attachment member 3 is positioned in two horizontal directions with respect to the base member 2. Since it is restrained, the attachment member 3 may be connected to the base member 2 so as to be prevented (restricted) from rising (moving in the vertical direction) from the base member 2 .

In the drawings, the engaging member 24 and the engaging member 33 that are engaged (contacted) with each other in the length direction of the base member 2 are inserted with a connector 7 such as a pin or a bolt that penetrates in the engagement direction to prevent them from coming off. By doing so, the attachment member 3 is detachably fixed (connected) to the base member 2, but the method is not limited to this. In the case of a pin, a split pin (pine needle pin) or the like is used together to prevent the pin from coming off, and in the case of a bolt, a nut is screwed onto the inserted shaft. The connector 7 is inserted through the insertion holes 24 a and 33 b formed in the engaging member 24 and the engaging member 33 . The insertion hole 33b of the engaging member 33 is shown in FIG.

FIG. 4 shows the state of assembly when the intermediate member 4 is detachably fixed on the base member 2 and the attachment member 3 is detachably fixed on the intermediate member 4 . Since the intermediate member 4 is used for the purpose of securing a space between the base member 2 and the attachment member 3 and arranging the attachment member 3 at a position higher than the base member 2, the main body 40 of the intermediate member 4 is basically is three-dimensionally assembled from, for example, a square-shaped or grid-shaped lower frame 41 placed on the base member 2 and vertical frames 42 and the like fixed at four corner positions thereof with the axial direction directed vertically. The lower frame 41 follows the shape of the main body 30 of the attachment member 3, for example, and is composed of a vertical member 41a facing in the length direction and a horizontal member facing in the width direction. ing.

When the main body 40 of the intermediate member 4 is fixed to the base member 2 , the attachment member 3 is detachably fixed to the upper part of the main body 40 . Engagement members 33 , 33 are fixed to the lower surface of the body 30 of the attachment member 3 so as to face each other with a distance in the length direction of the base member 2 and face the width direction of the base member 2 in a state of protruding from the body 30 . Therefore, the upper portion of the main body 40 of the intermediate member 4 receives the engaging members 33, 33, and the receiving members 44, 44 for supporting the attachment member 3 are fixed at positions corresponding to the engaging members 33, 33. there is In this relationship, of the four vertical frames 42 of the main body 40, the receiving member 44 is placed between the upper portions of the two vertical frames 42, 42 that face each other in the width direction of the base member 2 and coincide with the axial direction of the engaging member 33. are constructed and fixed to each vertical frame 42 by welding or the like. The receiving member 44 also serves to connect two vertical frames 42 , 42 facing each other in the width direction of the base member 2 .

Since the intermediate member 4 is fixed on the base member 2, the engaging member 33 and the engaging member 33 are provided at two places overlapping with the engaging member 24 on the lower surface side of the lower frame 41 in one horizontal direction, for example, the length direction of the base member 2. Engagement members 43, 43 of the same or similar shape are fixed together. As described above, the lower frame 41 is basically composed of the vertical member 41a and the horizontal member, but as shown in FIG. Since the engaging members 24, 24 with which the 43, 43 are to be engaged are fixed, the horizontal member also serves as the engaging members 43, 43 in the drawing. That is, in the illustrated example, the lower frame 41 is composed of vertical members 41a, 41a arranged in parallel and engaging members 43, 43 bridged between both ends of the vertical members 41a, 41a.

Since the intermediate member 4 is selectively fixed to the base member 2 other than the attachment member 3, it must be combined with the base member 2 in the same manner as the attachment member 3 and the base member 2 are combined. In this relationship, the engaging members 43 , 43 are arranged in the lower frame 41 at the same position as the engaging members 33 , 33 of the attachment member 3 . In the drawing, the engagement members 33, 33 of the attachment member 3 are located inside the engagement members 24, 24 in the longitudinal direction of the base member 2, and the engagement members 43, 43 are also the engagement members. 24, 24, but it may be arranged outside the engaging members 24, 24 in the same manner as the engaging members 33, 33.

FIG. 6 shows a state in which the intermediate member 4 is placed on the base member 2 and fixed detachably. 43 is engaged with the engaging members 24, 24 in the longitudinal direction of the base member 2, so that the horizontal movement of the intermediate member 4 is restrained in any direction in the longitudinal direction of the base member 2. .

On both sides of the engaging member 43 in the axial direction, as shown in FIG. Engagement pieces 43a, 43a are integrally protruded from the engagement member 43 so as to be engaged inwardly from both sides in the width direction. By engaging the engaging pieces 43a, 43a with the main body 20, the horizontal movement of the intermediate member 4 is restrained in any direction in the width direction of the base member 2. As shown in FIG.

Even when the intermediate member 4 is fixed on the base member 2, when the main body 40 of the intermediate member 4 overlaps the main body 20 of the base member 2, the intermediate member 4 is constrained in two horizontal directions with respect to the base member 2. Therefore, the intermediate member 4 may be connected to the base member 2 so as to be prevented (restricted) from rising from the base member 2 . In the drawings, the engaging member 24 and the engaging member 43, which are engaged with each other in the longitudinal direction of the base member 2, are inserted with a connector 7 such as a pin that penetrates in the engaging direction to prevent the intermediate member from coming off. 4 is detachably fixed (connected) to the base member 2, but the method is not limited to this. In the case of a pin, a cotter pin or the like is also used for retaining, and in the case of a bolt, a nut is screwed onto the shaft. The connector 7 is inserted through the insertion hole 24a of the engagement member 24 and the insertion hole 43b formed in the engagement member 43, as shown in FIG.

As shown in FIG. 4, the attachment member 3 is placed on the main body 40 of the intermediate member 4 and fixed detachably. As described above, the upper portion of the main body 40 of the intermediate member 4 receives the engaging members 33, 33, and the receiving members 44, 44 for supporting the attachment member 3 are fixed at positions corresponding to the engaging members 33, 33. Therefore, the engaging members 33, 33 are placed on receiving members 44, 44 as shown in FIG. 9, and are detachably joined (fixed). FIG. 10 shows the state of FIG. 9 as viewed from the upper surface side of the attachment member 3. In FIG.

In the illustrated example, the engaging members 33, 33 of the attachment member 3 are engaged with the engaging members 24, 24 of the base member 2 in the longitudinal direction of the base member 2 from the inner side to the outer side in the longitudinal direction. fixed in position. In this relationship, the engagement members 33, 33 are received so that when the attachment member 3 is placed on the intermediate member 4, the situation is the same as when the attachment member 3 is placed on the base member 2. It is supported by the members 44,44. Specifically, the engagement members are arranged so that the attachment member 3 is constrained by the intermediate member 4 in the longitudinal direction of the base member 2 even when the engagement members 33 and 33 are placed on the receiving members 44 and 44 . 33, 33 engage receiving members 44, 44 in the longitudinal direction of base member 2, from the inner side to the outer side in the longitudinal direction.

In the drawing, as shown in FIG. 9, the engaging member 33 is made of channel steel with open side surfaces in the width direction, and the receiving member 44 is made of angle steel with its upper side open. 44 are engaged on both sides in the longitudinal direction of the base member 2 so that the intermediate member 4 restrains the horizontal movement of the attachment member 3 in any direction in the longitudinal direction of the base member 2 .

Engagement pieces 33 a , 33 a that engage with the main body 20 of the base member 2 in the width direction of the base member 2 project from both axial sides of the engagement member 33 of the attachment member 3 . Therefore, even when the attachment member 3 is supported by the intermediate member 4 , the engaging pieces 33 a and 33 a are attached to the receiving member 44 from both sides in the width direction of the base member 2 in the same manner as when the attachment member 3 is supported on the base member 2 . The intermediate member 4 restrains the horizontal movement of the attachment member 3 in any direction in the width direction of the base member 2 by engaging it inwardly.

The method of joining the engaging member 33 and the receiving member 44 does not matter, but in the drawings, channel steel is used for the engaging member 33 and angle steel is used for the receiving member 44 as described above. Then, the engaging member 33 is superimposed on the receiving member 44, and detachably joined using a fastener 8 such as a bolt passing through the superimposed horizontal portion (flange). In view of the stability of the attachment member 3 in the joined state, the fastener 8 is attached to each engaging member 33 as shown in FIG. placed in Eight fasteners 8 in FIG. 4 indicate the number of fasteners 8 used to join two engaging members 33 to each receiving member 44 .

FIG. 4 also shows how the restraining member 9 for restraining the widthwise movement of the long load 10 supported by the attachment member 3 is detachably fixed (connected) to the attachment member 3. As shown in FIG. . FIG. 5 shows how the intermediate member 4 is arranged on the base member 2 after the binding member 9 is connected to the attachment member 3 and the attachment member 3 is fixed to the intermediate member 4 .

The restraining member 9 may take any form as long as it functions to restrain the movement of the load 10, especially the long object in the width direction. In the drawings, it is assumed that the load 10 has a length overhanging both sides in the length direction of the attachment member 3 at both ends in the axial direction, and is supported and connected to the horizontal frames 32 positioned on both sides in the length direction of the attachment member 3 . , a support member 91 that supports the load 10 and a plurality of rod-shaped holding members 92 that are connected (coupled) at intervals in the axial direction of the support member 91 and hold (restrain) the load 10 in the width direction. It constitutes a restraining member 9 . The holding member 92 may be formed in a lattice shape or other shape, but in the case of a bar shape, it has the advantage that the long load 10 can be easily loaded and removed while the shape is simple.

Although the method of connecting (fixing) the restraint member 9 to the attachment member 3 is not limited, in the drawing, the supporting member 91 is penetrated in the height direction to connect the holding member 92 to the supporting member 91, and the holding member 92 is connected to the supporting member 91 from the lower surface of the supporting member 91. The restraining member 9 is connected by inserting a portion of the projecting holding member 92 into an insertion hole 32a formed by penetrating the horizontal frame 32 in the height direction.

In the drawing, among the four holding members 92 connected to the support member 91, the distance between the adjacent holding members 92, 92 is changed to stabilize long loads 10 having different widths or thicknesses. so that it can be retained. Specifically, the distance between the two holding members 92, 92 near the center in the axial direction of the supporting member 91 is made larger than the distance between the two holding members 92, 92 near the axial direction sides. FIG. 6-(a) shows how a load 10 having a relatively small width (thickness) is held by two holding members 92, 92 on both sides; It shows how a large load 10 is held by two holding members 92, 92 near the center.

1 …… Lifting platform,
2 Base member 20 Body 21 Bracket 22 Rail 23 Slider 24 Engagement member 24a Insertion hole
3 Attachment member 30 Body 31 Vertical member 32 Horizontal member 32a Insertion hole 33 Engagement member 33a Engagement piece 33b Insertion hole
4 Intermediate member 40 Main body 41 Lower frame 41a Vertical member 42 Vertical frame 43 Engagement member 43a Engagement piece 43b Insertion hole 44 ... receiving material,
5 ... traveling vehicle, 50 ... vehicle body, 51 ... traveling device, 52 ... base frame, 53 ... power source,
6... Lifting device, 61... Lift arm, 62... Connecting member, 63... Hydraulic cylinder,
7 ... connector, 8 ... fastener,
9...restraining member, 91...supporting material, 92...holding material,
10 . . . load.

Claims (5)

a base member supported so as to maintain a constant posture on the upper part of a lifting device capable of moving vertically on a traveling vehicle; an attachment member detachably fixed to the base member and capable of loading a load; An intermediate member detachably fixable to the base member and detachably fixable to the attachment member on the upper part,
Either the attachment member or the intermediate member is selectively fixed to the base member ,
The base member, the attachment member, and the intermediate member are divided into a long side direction and a short side direction,
The attachment member and the intermediate member are each engageable with the base member in the long side direction of the base member on both sides in the long side direction of the base member,
The lifting and loading platform , wherein the attachment members are engageable with the intermediate member in the longitudinal direction of the intermediate member on both sides in the longitudinal direction of the base member . Engagement members are arranged on both sides in the long side direction of the upper surface side of the base member, and the base member is attached to the engagement member at a position corresponding to the engagement member of the base member on the lower surface side of the attachment member. Engagement members that engage with each other are arranged in the long side direction,
an engaging member that engages with the engaging member of the base member in the longitudinal direction of the base member at a position corresponding to the engaging member of the base member on the lower surface side of the intermediate member;
At a position corresponding to the engaging member of the attachment member on the upper surface side of the intermediate member, a receiving member that engages with the engaging member in the longitudinal direction of the base member is arranged. 2. A lifting platform according to claim 1. 3. The lifting device according to claim 1 , wherein the attachment member and the intermediate member are fixed to the base member while being engaged with each other in two horizontal directions between the base member. loading table. 4. The apparatus according to any one of claims 1 to 3 , wherein a restraint member is detachably fixed to the attachment member for restraining movement of the load in the width direction, which is supported by the attachment member. Lifting platform. 5. A traveling vehicle, wherein the lifting platform according to any one of claims 1 to 4 is mounted on the lifting device of the traveling vehicle.

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