JPH08310404A - Transport carriage for elevator installation work - Google Patents

Abstract

PURPOSE: To provide a transport carriage for elevator installation work which can carry various objects to be carried easily and safely. CONSTITUTION: An object to be carried is supported by a first frame 17 inclined to the horizontal surface, and hung between wheel units 13, 16 by a lifting means 12. The first frame 17 is disposed horizontally to the wheel units 13, 16, and the object to be carried is placed and carried. By eliminating troublesome labor for member removal and removed member storage when the first frame is disposed horizontally, lifting the object to be carried between the first wheel unit and the second wheel unit with the lifting means and carrying it, it is possible to save man-hour and much labor for loading it onto a carriage and facilitate carrying.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a carrier for an elevator installation work, which is mainly used for carrying equipment at an installation site.

[0002]

2. Description of the Related Art FIGS. 8 to 13 are exploded perspective views of a conventional carrier for elevator installation work to which a commercially available carrier is applied, and FIGS. 9 to 13 are each a carrier for elevator installation work in FIG. It is a side view explaining the use condition of a trolley. In the figure, (1) is a chassis having a square frame, (2) is wheels made of casters provided under the four corners of the chassis (1), and (3) is a chassis of the chassis (1). Mounting brackets installed upright on the upper surfaces of the corners, (4) diagonal members arranged parallel to each other, (5) arranged in the middle of the longitudinal direction of the diagonal members (4) to connect the diagonal members (4) to each other. It is a horizontal material.

(6) is placed at the upper end of the diagonal member (4)
Is a support plate that is connected to each other, and (7) is a support plate that is attached to the top material (6) by fasteners (not shown) and protrudes.It is also used as a handle and, depending on the transportation state, as a shelf plate. Also used. (8) is a support member provided corresponding to each diagonal member (4), the upper end of which is detachably fastened to the upper end of the diagonal member (4) by a fastener (9) consisting of a bolt and a nut, and the lower end. Is removably fastened to a mounting bracket (4) on one side of the chassis (1) by a fastener (10) including a bolt and a nut.

(11) A fastener consisting of a bolt and a nut
At (9), place the middle part of each diagonal member (4) near the lower end in the chassis (1).
Removably fastened to the mounting bracket (4) on the other side. Reference numeral (12) is a lifting means which is composed of a manual lifting tool such as a chain block or a lever block and is used by being hooked in a fitting hole provided in the upper member (6).

The conventional elevator installation work carriage is constructed as described above, and as shown in FIG. 9, the slant member (4) is arranged so that the lower end of the slant member (4) projects from the chassis (1). A support material (8) is provided so as to support (4). Also,
Support plate at the position protruding from the upper end of the diagonal member (4) toward the support member (8).
(7) is placed. Then, as shown in FIG. 9, the car floor (130) is lifted by the lifting means (12) through the hanging tool (140) provided on the car floor (130) of the elevator. ) Is carried by being supported by diagonal members (4).

Further, as shown in FIG. 10, a supporting plate (7) is attached to the longitudinal intermediate portion of the diagonal member (4), and the diagonal member (4) and the supporting plate (7) form a panel-like object such as an elevator. A plurality of cab room panels (150) are placed in a superposed state and transported. Further, as shown in FIG. 11, the base plate (160) is attached to the chassis (1) from which the diagonal member (4), the support member (8) and the like have been removed through the mounting bracket (4), and the base plate (16 ), A box-shaped object, for example, an elevator control panel (170) is placed and conveyed.

Further, as shown in FIG. 12, the base plate (160) is attached to the chassis (1) from which the support members (8) and the like have been removed through the mounting brackets (4), and the base plate (160) is circled. Column-shaped goods, long heavy goods,
For example, a hydraulic jack (180) of a hydraulic elevator is placed and transported. Also, as shown in FIG. 13, a diagonal member (4),
Mounting brackets (4) on the two chassis (1) without supporting materials (8)
Attach the base plate (160) via the
0) Long heavy objects, such as elevator guide rails (19
0) is placed and transported. By using the two chassis (1), even a long heavy object can move stably in a narrow and curved passage.

[0008]

DISCLOSURE OF INVENTION Problems to be Solved by the Invention In the conventional carrier for elevator installation work as described above, since the inclination angle of the slant member (4) and the support member (8) with respect to the chassis (1) is constant, a panel shape is formed. When transporting a transported object, the position of the center of gravity could not be changed, resulting in instability, and there was a risk that the transporting cart and all could fall. Also, when carrying box-shaped or bar-shaped objects, diagonal members (4),
It takes a lot of time to remove the support material (8) and the like, and it takes a lot of trouble to store the removed member. Furthermore, when loading a heavy load on the chassis (1), it takes a lot of trouble and labor, and in the state shown in FIG. 13, when carrying a long object to the elevator hoistway, the front chassis (1 ) Was likely to fall into the hoistway.

The present invention has been made to solve the above problems, and an object of the present invention is to obtain a transportation vehicle for elevator installation work capable of easily and safely transporting various transported objects.

[0010]

In the transport vehicle for elevator installation work according to the present invention, the vertical members which are arranged apart from each other and the vertical members which are provided between these vertical members are arranged in the longitudinal middle of the vertical members. A leg frame in which the upper ends of a first frame formed of a cross member and formed in a ladder shape and a second frame configured in the same manner as the first frame are pivotally attached to each other,
Lifting means mounted near the upper end of the leg body and traveling wheels are provided at both ends of the rod-like body, and the lower end of the vertical member on one side of the first frame is pivotally attached to one end. And a first wheel unit to which the lower end of the vertical member on one side of the second frame is detachably fastened to the other end, and the same configuration as the first wheel unit, and one end of the first frame of the first frame A second wheel unit is provided in which the lower end of the vertical member on the other side is pivotally attached and the lower end of the vertical member on the other side of the second frame is detachably fastened to the other end.

Further, in the elevator installation construction carrier according to the present invention, at least one of the first frame and the second frame formed by the vertical member configured by the lower member and the upper member to extend and contract is provided.

Further, in the transport vehicle for elevator installation work according to the present invention, the first lower end portion is pivotally mounted at a position higher than the fastening position of the lower end portion of the second frame with respect to the first wheel unit and the second wheel unit. A frame is provided.

Further, in the elevator installation construction carrier according to the present invention, the extension frame slidably engaged with the vertical member of the first frame is provided.

Further, in the elevator installation construction carrier according to the present invention, the elevator is always placed in the retracted position,
An auxiliary terrain for uneven terrain is provided which is arranged at the protruding position when necessary.

[0015]

In the transport vehicle for elevator installation work constructed as described above, the transported object is supported by the first frame inclined with respect to the horizontal plane, and the transported object is mutually supported by the lifting means by the wheel units. The goods are placed and carried on the first frame which is suspended between them and arranged horizontally with respect to the wheel unit.

Also, in the elevator installation construction carriage constructed as described above, the first frame and the second frame are configured to be extendable / contractible so that the center of gravity position due to the load of the transported object is closer to the center of the carriage. The length of the vertical member thus adjusted is adjusted to set the inclination angle of the first frame with respect to the horizontal plane. Then, the transported object is supported and transported by the inclined first frame.

In addition, in the elevator installation construction carriage constructed as described above, the first wheel unit and the second wheel unit are provided.
The fastening of the lower end of the second frame to the wheel unit is released, and the second frame is horizontally arranged. And the first
The frame is rotated by the pivot point of the lower end to be horizontally arranged on the horizontally arranged second frame, and the transported object is transported by being placed on the horizontally arranged first frame.

In the elevator installation construction carrier constructed as described above, the extension frame slidably engaged with the vertical member of the first frame is extended from the first frame when necessary to support the transported object. The length is expanded, and the cargo is placed and carried on the expanded support surface.

In addition, in the elevator installation work carriage constructed as described above, when the carriage is used on an uneven terrain, the uneven terrain auxiliary leg is arranged from the retracted position to the protruding position. As a result, stability and safety are improved when a load is loaded on a transport vehicle on an uneven terrain and the transport vehicle moves on the rough terrain.

[0020]

【Example】

Example 1. 1 to 5 are views showing an embodiment of the present invention, FIG. 1 is an exploded perspective view of a carrier truck for elevator installation work, and FIGS. 2 to 5 are transportation for elevator installation work of FIG. 1, respectively. It is a side view explaining the use condition of a trolley. In the figure, (13) is the first wheel unit, which is a rod-shaped body (1
4), traveling wheels (2) made of casters respectively provided at both ends of the rod-shaped body (14), both side surfaces of the rod-shaped body (14) arranged at one end of the rod-shaped body (14) and protruding upward Are arranged at the other ends of the first mounting member (15) and the rod-shaped body (14), respectively, and are protruded upward from the first mounting member (15).
It is composed of the second mounting brackets (151) provided on both side surfaces of 4).

Reference numeral (16) is a second wheel unit which is constructed in the same manner as the first wheel unit (13) and is arranged in parallel with the longitudinal direction apart from the first wheel unit (13). (17) is the first frame, and is a vertical member (18) and these vertical members (1
The cross members (8) are provided between each other and are formed in a ladder shape by the cross members (19) arranged in the longitudinal middle of the length members (18) and apart from each other.

(6) is arranged at the upper end of the vertical member (18) and the vertical member (1
8) Interconnected upper material, (7) is a support plate that is attached to the upper material (6) by fasteners (not shown) and protrudes.It is also used as a handle, and depending on the transportation state, it is a shelf. Also used as a board. Reference numeral (20) is a mounting plate protruding from the side surface of the upper end of the vertical member (18).

(21) is a second frame whose upper end is pivotally attached to the mounting plate (20) by a fastener (22) consisting of a bolt type pin and a nut screwed into the insertion end of the bolt type pin.
A vertical member (26) composed of an upper member (25) slidably fitted in the lower member (23) and the lower member (23) and provided with fastening holes (24) spaced apart from each other along the length, and a bolt type pin and Fastener (27) consisting of a nut screwed into the insertion end of the bolt type pin, inserted into the lower member (23) and inserted into the appropriate fastening hole (24) of the upper member (25)
And a horizontal member (28) provided between the lower member (23) and disposed in the longitudinal middle of the lower member (23), and formed in a ladder shape.

(29) is a first frame (17) and a fastener at the upper end
The second frame pivotally attached to the upper end of the first frame (17) via (22)
It is a leg solid composed mainly of a frame (21).
The vertical member (2) of the second frame (21) is provided between the first mounting bracket (15) at one longitudinal end of the wheel unit (13) and the second wheel unit (16).
The lower end of 6) is detachably fastened by a fastener (31) consisting of a bolt type pin and a nut screwed into the insertion end of the bolt type pin.

Further, the lower end of the vertical member (18) of the first frame (17) is provided between the second mounting brackets (151) at the other longitudinal ends of the first wheel unit (13) and the second wheel unit (16). The offset is pivotally attached by a fastener (30) consisting of a bolt pin and a nut screwed into the insertion end of the bolt pin. In this way, the leg body (29) is mounted on the first wheel unit (13) and the second wheel unit (16).

(32) is a vertical member (18) and a horizontal member of the first frame (17)
The corner of (19) and the lower member (23) of the second frame (21) and the cross member (2
The reinforcing plate is fixed to the corner of 8) and has a fastening hole (33) for fastening the support plate (7) when necessary. (12) is a chain block, lever block, etc.
The lifting means is used by being hooked in the hooking hole provided in (6).

As shown in FIG. 2, the transport vehicle for elevator installation work constructed as described above has the first wheel unit (13) and the second wheel unit which are arranged in parallel with each other.
A leg body (29) is assembled on top of (16). Then, the lower member (2
3) and the upper member (25) through the appropriate fastening holes (24) and the fastener (27)
The vertical member (26) of the second frame (21) is fastened to adjust the length of the vertical member (26), and the inclination angle of the first frame (17) is appropriately set.

Further, the lower end of the vertical member (18) of the first frame (17) is arranged so as to project from the rod-shaped bodies (14) of the first wheel unit (13) and the second wheel unit (16), and The support plate (7) is arranged at a position projecting from the upper material (6) to the second frame (21) side. Then, as shown in FIG. 2, a lifting tool (140) provided on the elevator car floor (130) is used to intervene only on the floor (13).
The car floor (130) is carried by being supported by the first frame (17) while the (0) is lifted by the lifting means (12).

In this state, the center of gravity due to the load on the car floor (130) should be closer to the center of the carriage.
The inclination angle of the first frame (17) is set by adjusting the length of the vertical member (26) of the second frame (21). Therefore, there is no fear that the position of the center of gravity will be significantly displaced from the center of the carriage and the product will fall over during transportation, and the car floor (130) can be easily and safely transported.

Also, the lower member (23) and the upper member (25) are fastened together by fasteners (27) through appropriate fastening holes (24) to lengthen the longitudinal members (26) of the second frame (21). By applying a mechanism for adjusting the height, the length of the vertical member (18) of the first frame (17) can be adjusted. With such a configuration, the first frame
By properly setting the inclination angle of (17), the position of the center of gravity can be located closer to the center of the carriage, and an effect of preventing the occurrence of falls can be obtained. In addition, the vertical members (18) of the first frame (17) and the vertical members (26) of the second frame (21) are each configured to be adjustable in length, and the center of gravity is set near the center of the carriage. It is also possible to obtain the effect of preventing the occurrence of falls.

Further, as shown in FIG. 3, the second frame (2
The fastener (31) with the first mounting bracket (15) at the lower end of the vertical member (26) of (1) is removed, and the second frame (21) becomes the first wheel unit (13).
And is horizontally arranged on the rod-shaped body (14) of the second wheel unit (16). Also, the second mounting bracket (151) is the first mounting bracket (1
The first frame (17) is provided so as to project above 5).
Is pivoted at a position higher than the second frame (21), the first frame (17) can be arranged horizontally on the second frame (21), and the leg solid (29) can be placed horizontally. Can be placed at.

The support plate (7) is attached as a handle to the lower end of the first frame (17). In this state, a box-shaped object, for example, an elevator control panel (170) is placed on the horizontally arranged leg solid (29) and conveyed. As a result, it is possible to save the labor for removing the member of the leg solid (29) during the transportation of the box-shaped transported object, and to eliminate the labor for storing the removed member, which makes it easy to transport the box-shaped transported object. Can be transported.

Further, as shown in FIG. 4, a cylindrical article is provided between the first wheel unit (13) and the second wheel unit (16),
Long heavy objects, such as hydraulic jacks for hydraulic elevators (1
80) is arranged and is lifted by the lifting means (12) mounted on the upper part of the leg solid (29) via the sling wire.
In this state, the hydraulic jack (180) is carried by the carrier. Therefore, the hydraulic jack (180) temporarily placed on the floor can be easily installed without loading the hydraulic jack (180) on the transporting trolley, which requires complicated labor and labor.
And it can be transported safely.

Further, as shown in FIG. 5, the two carriages are arranged apart from each other, and the long carriage is provided between the first wheel unit (13) and the second wheel unit (16) of each of the carriages. A heavy object, for example, a guide rail (190) of an elevator is arranged and hoisted by a lifting means (12) mounted on the upper leg body (29) of each carrier by sling wires. In this state, the guide rail (190) is carried by the carrier. Therefore, it is possible to easily and safely transport the guide rail (190) temporarily placed on the floor without complicated labor and great effort when loading the guide rail (190) on the carrier.

Further, as shown in FIG. 5, although the guide rails (190) carried by the two carriages are not shown, when the guide rails (190) are carried into the hoistway of the elevator, After suspending the leading portion by the lifting device in the hoistway, the leading carriage is moved from the guide rail (190) across the guide rail (190). As a result, when the guide rail (190) is hoisted into the hoistway, it is possible to prevent the leading carriage from being drawn into the hoistway and falling, and the guide rail (190) is easy and safe. It can be carried into the hoistway.

Example 2. FIG. 6 is a view showing another embodiment of the present invention, and is a perspective view showing an elevator installation work carrier in an exploded manner. In the drawings, the same reference numerals as those in FIGS. 1 to 5 indicate corresponding parts, and (6) is an upper member which has a circular cross section and which is arranged at the upper end of the vertical members (18) to connect the vertical members (18) to each other. The lifting means (12) can be mounted at a proper position in the longitudinal direction.

(7) is a support plate formed by bending a metal round bar, and is a hook hole provided in the vertical member (18) of the first frame (17).
By engaging with the retaining holes (36) provided in the vertical members (26) of the (34), (35) or the second frame (21), they can be retained without using fasteners. And also used as a handle,
It is also used as a shelf depending on the transportation condition.

Reference numeral (37) is an extension frame slidably fitted to a vertical member (18) made of a rectangular tube of the first frame (17), and is a frame-shaped carrying member having a large opening in the center thereof. Supports one side of the object to increase stability during loading. (38) is fitted and fixed to the fitting hole (39) provided in the vertical member (18) of the first frame (17) and the fitting hole (40) provided in the extension frame (37). U-shaped toggle pin, used as a stopper or hook for lifting means (12). (41) is a toggle type pin, which is used in place of the above-mentioned fasteners (22), etc. in the pivotal attachment portions of the first frame (17) and the second frame (21), etc. It is possible to simplify operations such as attachment and detachment.

Also in the elevator installation work carriage constructed as described above, the first wheel unit (13), the second wheel unit (16), the first frame (17) and the second frame (21) are the main components. A leg solid (29) as a part is provided. Therefore, although detailed description is omitted, it is obvious that the embodiment of FIG. 6 can obtain the same operation as that of the embodiment of FIGS.

Example 3. FIG. 7 is also a view showing another embodiment of the present invention, which is a side view showing a wheel unit of a carrier for elevator installation work. Elevator installation is similar to the embodiment of FIGS. 1 to 5 except for FIG. A construction carrier is constructed. In the figure, the same reference numerals as those in FIGS. 1 to 5 indicate corresponding parts, (14) is a rod-shaped body made of a square tube of the first wheel unit (13) and the second wheel unit (16), and (42) is a square tube. An extension member slidably fitted to a rod-shaped body (14) made of, (43) is an extension member (4
It is an outrigger attached to the tip of 2) and can be folded and stored in the extension member (42). Reference numeral (44) is an auxiliary foot for uneven terrain, which is composed of the extension member (42) and the outrigger (43).

Also in the transport vehicle for elevator installation work constructed as described above, the first wheel unit (13), the second wheel unit (16) and the first frame (17) and the second frame (21) are the main components. A leg solid (29) as a part is provided. Therefore, although detailed description is omitted, it is obvious that the embodiment of FIG. 7 can also obtain the same operation as that of the embodiment of FIGS.

Further, in the embodiment shown in FIG. 7, the outrigger (43) is normally folded and stored, and the extension member (42) is retracted and held in the rod-shaped body (14) to support the uneven land auxiliary leg ( 44)
Is placed in the retired position. Then, when loading the goods to be carried on the carriage, when there is a risk of falling due to unevenness of the moving surface when carrying the goods and moving the carriage,
The extension (42) is placed in the protruding position and the outriggers (4
3) is arranged in the descending position from the extension member (42), and the rough terrain auxiliary leg (44) is arranged in the projecting position.

As a result, it is possible to improve the stability and safety when the carrier is used on an uneven terrain, and it is possible to easily and safely carry an object. In addition, when the width of the passage of the carrier is wide, even if the extension member (42) is fixed to the rod-shaped body (14) at the protruding position, it is possible to obtain the effect of improving the stability on rough terrain. Therefore, it is possible to facilitate the use of the carriage on the uneven ground.

[0044]

As described above, the present invention is formed in the shape of a ladder made of vertical members which are arranged apart from each other and horizontal members which are provided between these vertical members and which are arranged in the longitudinal middle of the vertical members. Of the first frame and the second frame having the same structure as the first frame, the upper ends of which are pivotally attached to each other, the lifting means mounted near the upper ends of the legs, and the rod-shaped body. Wheels for traveling are provided at both ends, and a lower end of a vertical member on one side of the first frame is pivotally attached to one end and a lower end of a vertical member on one side of the second frame is attached to the other end. Is detachably fastened to the first wheel unit, and the first wheel unit is configured in the same manner as the first wheel unit. The lower end of the vertical member on the other side of the first frame is pivotally attached to one end of the first wheel unit 2nd with the lower end of the vertical member on the other side of the 2 frame removably fastened
And a wheel unit.

As a result, the transported object is supported by the first frame inclined with respect to the horizontal plane, the transported object is suspended between the wheel units by the lifting means, and the transported object is supported by the wheel unit. The transported article is placed on the horizontally arranged first frame and transported. And the first
By lifting and transporting the transported object between the wheel unit and the second wheel unit by the lifting means, it is possible to save a troublesome work and a great labor when loading the transported object on the transport carriage, and to transport the transported object. It has the effect of facilitating the transportation.

Further, as described above, the present invention is formed in the shape of a ladder made of the vertical members arranged apart from each other and the horizontal members arranged between these vertical members and arranged in the longitudinal middle of the vertical members. Of the first frame and the second frame having the same structure as the first frame, the upper ends of which are pivotally attached to each other, the lifting means mounted near the upper ends of the legs, and the rod-shaped body. Wheels for traveling are provided at both ends, and a lower end of a vertical member on one side of the first frame is pivotally attached to one end and a lower end of a vertical member on one side of the second frame is attached to the other end. A first wheel unit detachably fastened to the
The wheel unit is constructed similarly to the wheel unit, and the lower end of the vertical member on the other side of the first frame is pivotally attached to one end and the second end is attached to the other end.
A second wheel unit to which the lower end of the vertical member on the other side of the frame is detachably fastened is provided, and at least one vertical member of the first frame and the second frame is formed to be expandable and contractable by the lower member and the upper member. It was done.

As a result, the lengths of the longitudinal members of the first frame and the second frame, which are configured to be expandable and contractible, are adjusted,
The inclination angle of the first frame with respect to the horizontal plane is set so that the position of the center of gravity due to the load of the conveyed object is closer to the center of the carriage. Then, the transported object is supported and transported by the inclined first frame. Therefore, there is no danger that the center of gravity of the load due to the load will deviate significantly from the center of the carrier, and the product will fall over.

Further, as described above, the present invention is formed in a ladder shape by the vertical members arranged apart from each other and the horizontal members arranged between these vertical members and arranged in the longitudinal middle of the vertical members. Of the first frame and the second frame having the same structure as the first frame, the upper ends of which are pivotally attached to each other, the lifting means mounted near the upper ends of the legs, and the rod-shaped body. Wheels for traveling are provided at both ends, and a lower end of a vertical member on one side of the first frame is pivotally attached to one end and a lower end of a vertical member on one side of the second frame is attached to the other end. A first wheel unit detachably fastened to the
The wheel unit is constructed similarly to the wheel unit, and the lower end of the vertical member on the other side of the first frame is pivotally attached to one end and the second end is attached to the other end.
A second wheel unit to which the lower end of the vertical member on the other side of the frame is detachably fastened is provided, and the lower end is located above the fastening position of the lower end of the second frame to the first wheel unit and the second wheel unit. A first frame having a part pivotally attached is provided.

As a result, the first wheel unit and the second wheel unit
The fastening of the lower end of the second frame to the wheel unit is released, and the second frame is horizontally arranged. And the first
The frame is rotated by the pivot point of the lower end to be horizontally arranged on the horizontally arranged second frame, and the transported object is transported by being placed on the horizontally arranged first frame.
Therefore, the leg three-dimensional can be easily arranged horizontally, and when the leg three-dimensional is arranged horizontally and the object to be conveyed is placed on this leg three-dimensional, it is possible to save the labor of removing the member of the leg three-dimensional. In addition, it is possible to eliminate the labor for storing the removed member, and it is effective in facilitating the transportation of the transported object.

Further, as described above, the present invention is formed in a ladder shape by the vertical members arranged apart from each other and the horizontal members arranged between these vertical members and arranged in the longitudinal middle of the vertical members. Of the first frame and the second frame having the same structure as the first frame, the upper ends of which are pivotally attached to each other, the lifting means mounted near the upper ends of the legs, and the rod-shaped body. Wheels for traveling are provided at both ends, and a lower end of a vertical member on one side of the first frame is pivotally attached to one end and a lower end of a vertical member on one side of the second frame is attached to the other end. A first wheel unit detachably fastened to the
The wheel unit is constructed similarly to the wheel unit, and the lower end of the vertical member on the other side of the first frame is pivotally attached to one end and the second end is attached to the other end.
A second wheel unit to which the lower end of the vertical member on the other side of the frame is detachably fastened is provided, and an extension frame slidably engaged with the vertical member of the first frame is provided.

As a result, the extension frame slidably engaged with the vertical member of the first frame is extended from the first frame when necessary to extend the support length of the object to be conveyed, and the extension frame is conveyed to the extended support surface. Objects are placed and transported. Therefore,
For example, it is possible to stably support a frame-shaped object having a large opening formed at the center, and it is possible to improve safety during transportation.

Further, as described above, the present invention is formed in a ladder shape by the vertical members arranged apart from each other and the horizontal members provided between these vertical members and arranged in the longitudinal middle of the vertical members. Of the first frame and the second frame having the same structure as the first frame, the upper ends of which are pivotally attached to each other, the lifting means mounted near the upper ends of the legs, and the rod-shaped body. Wheels for traveling are provided at both ends, and a lower end of a vertical member on one side of the first frame is pivotally attached to one end and a lower end of a vertical member on one side of the second frame is attached to the other end. A first wheel unit detachably fastened to the
The wheel unit is constructed similarly to the wheel unit, and the lower end of the vertical member on the other side of the first frame is pivotally attached to one end and the second end is attached to the other end.
A second wheel unit, to which the lower end of the vertical member on the other side of the frame is detachably fastened, is provided, and an auxiliary terrain for uneven terrain, which is normally arranged at the retracted position and is arranged at the protruding position when necessary, is provided. It is a thing.

As a result, when the carrier is used on uneven terrain, the uneven terrain auxiliary legs are arranged at the projecting position from the retracted position. As a result, stability and safety are improved when a load is loaded on a transport vehicle on an uneven terrain and the transport vehicle moves on the rough terrain. Therefore, there is an effect of facilitating the use of the carrier truck on uneven terrain.

[Brief description of drawings]

FIG. 1 is a view showing a first embodiment of the present invention and is a perspective view showing an elevator installation work carrier in an exploded manner.

FIG. 2 is a side view illustrating a usage state of the elevator installation work carrier truck of FIG. 1.

FIG. 3 is a side view illustrating another usage state of the transport vehicle for elevator installation work of FIG. 1.

FIG. 4 is a side view illustrating another usage state of the transport vehicle for elevator installation work in FIG. 1.

FIG. 5 is a side view for explaining another usage state of the elevator installation carrier of FIG. 1.

[Fig. 6] Fig. 6 is a perspective view showing a second embodiment of the present invention in a disassembled state of a transportation vehicle for elevator installation work.

FIG. 7 is a view showing a third embodiment of the present invention, and is a side view showing a wheel unit of a carrier truck for elevator installation work.

FIG. 8 is an exploded perspective view of a conventional carrier for elevator installation work to which a commercial carrier is applied.

FIG. 9 is a side view illustrating a usage state of the elevator installation carrier of FIG. 8.

FIG. 10 is a side view for explaining another usage state of the elevator installation work carriage of FIG. 8.

FIG. 11 is a side view illustrating another usage state of the transport truck for elevator installation work of FIG. 8.

FIG. 12 is a side view illustrating another usage state of the elevator installation work carrier of FIG. 8.

FIG. 13 is a side view for explaining another usage state of the elevator installation work carrier of FIG. 8.

[Explanation of symbols]

2 wheels, 12 lifting means, 13 1st wheel unit,
14 bar-shaped body, 16 second wheel unit, 17 first frame, 18, 26 vertical member, 19, 28 horizontal member, 21 second frame, 23 lower member, 25 upper member, 29 leg solid, 37 extension frame, 44 Leveling auxiliary legs

Claims (5)

[Claims] 1. A ladder-shaped first frame made of vertical members arranged apart from each other and horizontal members arranged between these vertical members and arranged in the longitudinal middle of the vertical members, and separated from each other. Upper end portions of a second frame, which is formed in a ladder shape and is composed of vertical members arranged in parallel with each other and horizontal members arranged between these vertical members and arranged in the longitudinal middle of the vertical members, are pivotally attached to each other. A leg body, a lifting means mounted near the upper end of the leg body, and wheels for traveling are provided at both ends of the rod-like body, and one end of the vertical member on one side of the first frame is provided. A first wheel unit having a lower end pivotally attached to the other end and a lower end of a vertical member on one side of the second frame detachably fastened to the other end, and traveling wheels provided at both ends of the rod-shaped body, respectively. The lower end of the vertical member on the other side of the first frame is pivotally attached to one end of the vertical frame. A carrier truck for elevator installation work, comprising a second wheel unit to which the lower end of the vertical member on the other side of the second frame is detachably fastened to the other end. 2. The elevator installation work according to claim 1, further comprising at least one of a first frame and a second frame which are formed by a vertical member configured to extend and contract by a lower member and an upper member. Carrier truck. 3. A first frame having a lower end pivotally mounted at a position higher than a fastening position of the lower end of the second frame with respect to the first wheel unit and the second wheel unit. Elevator installation work carrier. 4. The transport vehicle for elevator installation work according to claim 1, further comprising an extension frame slidably engaged with a vertical member of the first frame. 5. The transport vehicle for elevator installation work according to claim 1, further comprising auxiliary legs for uneven terrain, which are normally arranged in the retracted position and are arranged in the projected position when necessary.