JPH0633773U - Trolley - Google Patents

Abstract

(57) [Summary] [Purpose] Even when moving a heavy object with a high center of gravity, or when moving a heavy object at a place with a low ceiling or a low entrance, the heavy object is stable and safe and easy. To provide a simple and practical trolley that can carry luggage. In a trolley comprising a cradle and a wheel structure section, the cradle has an outer frame having a wheel accommodating section and a groove, and a pair at one end provided so as to be stored inside the outer frame. A middle frame having a rotating body and a frame on the opposite side not having the rotating body as an axis around the rotating body and the frame having the rotating body as an axis, and a frame placed inside the middle frame. , Which is connected to the outer frame at one end and is rotatable around the connecting portion,
Further, the other end has a pair of holding arms connected to substantially central portions of the members on both sides of the middle frame, and further, a connecting rod for connecting the holding arms and the middle frame and a length of the connecting rod. A trolley provided with a fixture for arbitrarily setting and fixing.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a trolley capable of easily moving a heavy object such as a large control panel or machine. More specifically, the heavy object can be moved while being held while being tilted at a desired angle. The present invention relates to a trolley that is most suitable for moving in a place with a limited height or moving a heavy object having a high center of gravity.

[0002]

[Prior art]

 BACKGROUND ART Conventionally, when a heavy load such as a large lathe or control panel is transferred or installed in a factory, a trolley used for transporting the heavy load is provided with a substantially rectangular cargo cradle and a lower part thereof. It is composed of a wheel structure section. Then, heavy objects such as lathes and control boards that are placed on the cargo receiving stand are moved in a state where they are normally placed on the cargo receiving stand, or when the ceiling is lower than the height of the heavy goods. At low entrances, they are laid sideways on the cradle. That is, in any case, the heavy object is placed in a position vertical to the receiving platform. However, when a heavy object such as a lathe or a control panel is normally placed on the loading platform, the stability is poor and dangerous when the center of gravity of the heavy object is high, or a person who holds down the heavy object is required. is there. Also, when a heavy object such as a lathe or control panel is laid sideways and placed on the cradle, depending on the machine to be transported, it may not be possible to lay it down because it is likely to cause a failure, or the shape of the machine. Depending on the situation, there is a problem that it may be difficult to lay it down.

[0003]

[Problems that the device is trying to solve]

 Therefore, the object of the present invention is to solve the above-mentioned problems of the prior art and to stabilize a heavy object even when moving a heavy object having a high center of gravity or moving a heavy object in a place with a low ceiling. (EN) It is possible to provide a simple and practical trolley that can be easily held in a position and can be easily moved to any place in that state.

[0004]

[Means for solving problems]

 The above object is achieved by the present invention described below. That is, the present invention provides a cart comprising a cargo cradle and a wheel structure portion, wherein the cargo cradle is provided so as to be stored inside an outer frame having a wheel storage portion and a groove, and the outer frame. The structure has a pair of rotating bodies at one end, and the rotating body and the frame on the side having the rotating body are used as an axis to move the frame on the opposite side up and down. A pair of outer frame, one end of which is connected to the outer frame and is rotatable about the connecting part, and the other end of which is connected to substantially central parts of the members on both sides of the middle frame. The present invention is characterized by having a holding arm, and further provided with a connecting rod for connecting the holding arm and the middle frame, and a fixing tool for arbitrarily setting and fixing the length of the connecting rod. It is a dolly.

[0005]

[Action]

 As a result of earnest research to solve the problems of the prior art, the present inventor can lift one end to the carrier of the trolley, and can lift and lower it at an arbitrary angle with respect to the outer frame of the trolley. If a middle frame is provided, heavy items that have a high center of gravity and are prone to fall can be fixed with this middle frame, so that heavy items can be transported easily and safely. In addition, since it is possible to hold and move heavy objects in a tilted state in a place with a low ceiling or a place with a low entrance, it was found that heavy objects can be easily transported under any circumstances. Then the present invention was completed.

[0006]

【Example】

 Next, the present invention will be described in more detail with reference to the embodiments shown in the drawings. 1 to 3 are perspective views each showing a usage state of the dolly 20 of the present invention. As shown in these figures, the trolley | bogie 20 of this invention consists of a goods receiving stand and a wheel structure part. The load receiving base is composed of an outer frame 4 having a wheel storage portion 12, a middle frame 1 inserted inside the outer frame 4, and a pair of holding arms 2 inserted inside the middle frame 1. And a connecting rod 3 for connecting the holding arm 2 and the middle frame 1 so that the holding arm 2 can fix the middle frame 1 in a state of being raised and lowered at an arbitrary angle. 3 has a fixture 7 capable of arbitrarily determining the angle between the holding arm 2 and the middle frame 1. With the above construction, the dolly of the present invention has a shape in which the inner frame 1 is fixed at an arbitrary angle with respect to the outer frame 4 only by operating a single fixture 7 such as a screw or a hydraulic or pneumatic cylinder. Since it becomes a trolley, it is possible to transport the heavy load 30 in a more stable state, and it is possible to move the heavy load 30 in a state in which the heavy load 30 is tilted at an arbitrary angle according to the transportation conditions. Further, the wheel structure portion is composed of a wheel 5 accommodated in a wheel accommodating portion 12 provided in the outer frame 4 of the cargo receiving stand and parts for smoothly rotating the wheel. The number of wheels or the structure can be arbitrarily selected according to the weight and size of the object to be transported. FIG. 4 (a) is a plan view of the dolly of the present invention in the state of FIG. 2, and FIG. 4 (b) is a sectional view taken along the line AA ′ of FIG. 4 (a). Further, FIG. 5 is a schematic cross-sectional view showing the movement of the middle frame 1, the holding bowl 2, the connecting rod 3 and the fixture 7. Hereinafter, detailed description will be given with reference to these drawings.

As shown in FIG. 4, the outer frame 4 forming the cargo receiving stand has a substantially rectangular frame shape. Then, as shown in FIGS. 4 and 5, there are preferably wheel housings 12 for housing at least two pairs of wheels 5 on both sides, but the number, size, shape and structure of the wheel housings 12 are different. , The weight and shape of the object to be transported, the shape and structure of the wheel 5 to be housed, and the like. Further, as shown in FIG. 4 (a), the outer frame 4 has a structure in which the inner frame 1 is stored, and as shown in FIG. 4 (b), the inner frame 1 is inserted into the outer frame 4. It is preferable to have a structure in which the upper surface of the middle frame 1 is horizontal when it is stored inside. Further, it is also a preferable embodiment that the upper surface of the middle frame 1 and the upper surface of the outer frame 4 are flush with each other. With such a structure, when a heavy object is placed, the load of the heavy object is evenly applied to the outer frame 4 and the middle frame 1. Further, on the upper surface of the outer frame 4, as shown in FIG. 4B, a groove 9 is provided in the vicinity of the housing portion 12 of the wheel 5.

As described above, the middle frame 1 which constitutes the cargo receiving stand of the trolley of the present invention is usually placed inside the outer frame 4. Further, as shown in FIG. 4, a pair of rotating bodies 11 are provided on both sides of the middle frame 1 at the left end in the drawing, and the rotating bodies 11 are provided in the above-mentioned outer frame 4. It is constructed so that it can smoothly move back and forth along the inside of the vehicle. As a result, the inner frame 1 is centered on the shaft 15 due to the rolling of the rotating body 11 and the action of the shaft 15 of the inner frame 1 holding the rotating body 11, The structure is such that the other side (right end in the drawing) can be raised and lowered. At this time, it is assumed that the length of the groove 9 can be moved until the middle frame 1 is vertical to the outer frame 4 when the middle frame 1 moves along the groove 9. Preferably. Further, a pair of holding arms 2 is provided inside the middle frame 1 so as to be stored therein. As shown in FIGS. 4 (a) and 4 (b), one end of the holding arm 2 is connected to the outer frame 4 in a state where the holding arm 2 can rotate about the connecting portion 10. There is. On the other hand, the other end of the holding arm 2 is connected to the substantially central portions of the members on both sides of the middle frame 1, and the connecting portion 8 can have an arbitrary angle between the middle frame 1 and the holding arm 2. Similarly, they are connected to each other in a state of being rotatable around the connecting portion 8.

Further, as shown in FIG. 1, crosspieces 13 and 14 are respectively passed between both arms of the holding arm 2 composed of a pair of arms and between the columns on both sides forming the middle frame 1. Further, the middle frame 1 and the holding arm are connected to each other by the connecting rod 3 at the positions of these crosspieces. One end of the connecting rod 3 connected to the crosspiece 13 on the side of the middle frame 1 is rotatable so that the connecting rod 3 can take an arbitrary angle with respect to the middle frame 1 as shown in FIG. They are connected by a connecting tool 6. A fixture 7 is provided on the other end of the connecting rod 3. The fixture 7 fixes the connecting rod 3 at an arbitrary length, and the connecting rod 3 is made to have a length according to the included angle formed by the middle frame 1 and the holding arm 2 by the fixing device 7. By fixing, it is possible to hold the middle frame 1 at a preferable tilt position. As a means for fixing, for example, various kinds of screws or a method of using the connecting rod 3 as a hydraulic or pneumatic cylinder is used, but the connecting rod 3 is fixed to an arbitrary length, and the middle frame 1 and the holding member are held. Any arm may be used as long as it can hold the arm 2 at an arbitrary angle. In addition to the above-described structure, the cart of the present invention may further be provided with a fixing tool (not shown) such as a belt or a string on the middle frame 1 in order to more firmly fix the heavy object 30. is there. In addition, it is also a preferable embodiment to provide the outer frame 4 with a trolley-side-down prevention device 40.

The dolly of the present invention has the above-described structure. As a result, as shown in FIG. 1, when the end of the inner frame 1 on the side not having the rotating body 11 is lifted, Since the end of the middle frame 1 moves smoothly in the groove 9 of the outer frame 4, the middle frame 1 stands up at an arbitrary angle with respect to the outer frame 4, and the heavy object 30 is placed on the outer frame 4. A horizontal surface is secured. At this time, as shown in FIG. 5, the holding arm 2 circularly moves around the connecting portion 10 connected to the outer frame 4 to support the inner frame 1 at an arbitrary angle of 0 to 90 degrees. The holding arm 2 and the middle frame 1 are connected by a connecting rod 3, and as shown in FIG. 5, the holding arm 2 and the middle frame 1 form an acute angle as the middle frame 1 becomes vertical. And the distance between them becomes shorter. At this time, if the fixture 7 provided on the connecting rod 3 is operated and the length of the connecting rod 3 is fixed to the length between the holding arm 2 and the middle frame 1, the middle frame 1 becomes the outer frame. It is fixed while holding the desired angle with respect to 4. As a result, if the heavy object 30 is placed in such a state that the heavy object 30 is covered by the inclined or vertical middle frame 1, the heavy object can be stably transported in an appropriately inclined state. At this time, in order to more stably hold and move the load in a tilted or vertical state, a fixing tool (not shown) such as a belt or a string for fixing a heavy load is provided on the middle frame 1, and It is recommended to attach a heavy object to the middle frame 1 and fix it. Further, when placing the heavy object 30 in an inclined manner, if unevenness is provided at an arbitrary position on the contact surface of the outer frame 1 with the heavy object, the corner of the heavy object is caught in the unevenness and the heavy object is It is possible to prevent slipping down, and it is possible to transport heavy objects more safely.

As described above, the bogie of the present invention has a structure in which the middle frame 1 is lifted and held at an arbitrary angle between 0 and 90 degrees with respect to the outer frame 4, and therefore, It has such excellent functions. That is, when the heavy object 30 is tall and unstable, or when the center of gravity of the heavy object is high, as shown in FIG. 3, if the middle frame 1 is set up vertically (90 degrees), the outer frame is Since one surface of the heavy object 30 placed vertically on the 4 can be supported by the middle frame 1, and the heavy object can be fixed to the middle frame 1 by the fixing tool, the weight can be more stable. The object 30 can be held, and a heavy object can be safely transported with a small number of people. In addition, for example, when performing a moving operation in a place with a low ceiling or a low entrance, or when moving a machine or the like that cannot be moved sideways, as shown in FIG. Is used as a trolley in a state of being tilted and held with respect to the outer frame 4 at an arbitrary angle of 0 to 90 degrees, and by supporting and fixing the heavy object 30 by the tilted middle frame 1, Even under the circumstances, the heavy object 30 can be moved easily and safely. Further, in the dolly of the present invention, by placing the inner frame 1 inside the outer frame 4, as shown in FIG. It is also possible to move the 30 upside down over them in an upright position or sideways.

[0012]

[Effect of device]

 As described above, the trolley of the present invention has a shape in which the middle frame 1 is inclined at an arbitrary angle from 0 to 90 degrees with respect to the outer frame 4 by operating the only fixture 7. Therefore, by supporting the heavy object on the middle frame 1, it is possible to stably hold and move the heavy object in a tilted state or a vertical state, thereby achieving safety in transportation work and labor saving work. To be done.

[Brief description of drawings]

FIG. 1 is a perspective view showing a usage state of a dolly of the present invention.

FIG. 2 is a perspective view showing another usage state of the trolley of the present invention.

FIG. 3 is a perspective view showing another usage state of the truck of the present invention.

4 (a) is a plan view of the truck of the present invention in the state of FIG. 2, and FIG. 4 (b) is a sectional view taken along the line AA ′ of FIG.

FIG. 5 is a schematic view showing movements of a middle frame, an outer frame, a holding arm, a connecting rod and a fixture of the dolly of the present invention.

[Explanation of symbols]

 1: Middle frame 2: Holding arm 3: Connection rod 4: Outer frame 5: Wheels 6, 8, 10: Connection part 7: Connection tool 9: Groove 11: Rotating body 12: Wheel storage part 13, 14: Crosspiece 15: Axis 20: Bogie 30: Heavy load 40: Overturning prevention device

Claims (4)

[Scope of utility model registration request] 1. A trolley comprising a cargo cradle and a wheel structure portion, wherein the cargo cradle has an outer frame having a wheel storage portion and a groove, and one end provided so as to be stored inside the outer frame. An inner frame having a pair of rotating bodies and a frame on the opposite side not having the rotating body is raised and lowered around the rotating body and the frame having the rotating body as an axis; One end of the outer frame is connected to the outer frame and is rotatable around the connecting part.
Further, the other end has a pair of holding arms connected to substantially central portions of the members on both sides of the middle frame, and further, a connecting rod for connecting the holding arms and the middle frame and a length of the connecting rod. A trolley provided with a fixture for arbitrarily setting and fixing. 2. The dolly according to claim 1, wherein the fixture is a screw. 3. The trolley according to claim 1, wherein the fixture is a hydraulic or pneumatic cylinder. 4. The trolley according to claim 1, further comprising a fixing tool for fixing a load on the middle frame.