JPH076033U - Carrier - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a carriage that can move freely on a deck plate. [Structure] A plurality of wheels 3 are fixed to a lower surface of a mounting plate 2 in a circular arrangement so as to rotate in the same direction to form a wheel unit 1, and the wheel unit 1 is arranged at four lower corners of a carriage 4, Each wheel unit 1 is rotatably mounted on a trolley 4 by means of a pivot shaft 5 which is erected on a mounting plate 2 at a position eccentric with respect to the arrangement circle of the wheels 3, and one of the plurality of wheels is a deck plate. By placing it on the uneven portion, it does not fall into the concave portion, and movement on the deck plate can be performed without any hindrance.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a carriage, and more specifically to a carriage used for carrying materials, tools, devices, etc. on a deck plate laid at a construction site or the like.

[0002]

[Prior art]

 A conventional trolley used for transporting the above materials at a construction site has a structure in which one caster is attached to each of the four lower corners of the trolley body.

[0003]

[Problems to be solved by the device]

 Since the above-mentioned carrier has casters at the four corners, it does not hinder movement on a flat surface. Since the surface of the plate is uneven, there is a problem that each caster fits into the recess and cannot be moved, making it unusable.

Therefore, an object of the present invention is to provide a carrier truck that can carry out work of carrying materials and the like even on a deck plate.

[0005]

[Means for Solving the Problems]

 In order to solve the above problems, a first invention is to fix a plurality of wheels to a lower surface of a mounting plate in a circular arrangement so that the rotation directions thereof are the same direction to form a wheel unit. A plurality of the wheel units are arranged on the trolley, and each wheel unit is mounted on the trolley so as to be rotatable around a turning shaft provided at a position eccentric from the center of the wheel arrangement circle on the mounting plate. It is a thing.

Similarly, a second invention adopts a configuration in which a plurality of free wheels are fixed to a lower surface of a mounting plate in a circular arrangement to form a wheel unit, and the wheel unit is mounted at a plurality of lower portions of a carriage. It is a thing.

[0007]

[Action]

 In the wheel unit that supports the trolley, a plurality of wheels that rotate in the same direction are arranged in a circle, so that one of the wheels rests on the convex portion on the deck plate, and the wheel falls into the concave portion. In addition, since the wheel unit is attached to the trolley at a position eccentric to the center of the circular arrangement of the wheel groups, it is possible to perform straight traveling, transverse traveling, oblique traveling, rotation, etc. on the deck plate without any trouble.

Second invention Since the wheel unit supporting a plurality of positions of the trolley has a plurality of free wheels arranged in a circle, one of the wheels rests on the convex portion on the deck plate, and Since there is no drop and the free wheels rotate freely in a plane, straight, traverse, skew, rotation, etc. can be performed on the deck plate without any problems.

[0009]

【Example】

 An embodiment of the present invention will be described below with reference to the accompanying drawings.

In the first embodiment shown in FIGS. 1 to 3, a wheel unit 1 is formed by arranging and fixing a plurality of wheels 3 in a circular shape on a lower surface of a circular mounting plate 2.

In the case shown in the figure, five wheels 3 are used, and the wheels are arranged in five equal parts such that their vertical centers are located on the same circle and rotate in the same direction, but the number of wheels 3 is arbitrary. Can be increased or decreased.

The wheel unit 1 is arranged and attached to the lower four corners of the rectangular carriage 4 to support the carriage 4.

On the mounting plate 2 of the wheel unit 1, a vertical turning shaft 5 is erected at a position eccentric from the center of the wheel arrangement circle, and a bearing case 7 of a seat plate 6 fixed to the lower surface of the carriage 4 is provided. The swivel shaft 5 is inserted therein, and it is rotatably supported by a bearing 8, and a washer 9 and a nut 10 mounted on the upper end of the swivel shaft 5 prevent the swivel shaft from coming off.

On the lower surface of the seat plate 6, four or more thrust load receivers 11 are fixed at equal intervals on the same circumference centered on the swivel shaft 5, and a lower ball which is rotatable. A support 12 supports the upper surface of the mounting plate 2 and receives a thrust load.

The transporting trolley of the first embodiment is configured as described above, and carries materials and the like on the trolley 4 which is supported by the wheel units 1 at the lower four corners and is movable.

When moving on the deck plate by the above-mentioned carrier, each wheel unit 1 has a structure in which five wheels 3 are arranged in a polygonal shape, and therefore any one of the wheels 3 has a convex portion of the deck plate. It rests on the top and no drop occurs in the recess.

Further, since the wheel unit 1 is rotatable about a position which is eccentric from the center of the circular arrangement of the group of wheels 3, a caster function is generated, which causes straight traveling, transverse traveling, oblique traveling on the deck plate, It can be freely rotated and moved on the deck plate.

Next, a second embodiment shown in FIGS. 4 and 5 will be described. The same parts as those in the first embodiment described above are designated by the same reference numerals.

As shown in FIGS. 4 and 5, a wheel unit 1 is formed by arranging and fixing a total of five wheels 3 on the lower surface of the circular mounting plate 2 in a circular shape so that the rotation directions are the same. 1 are arranged at the lower four corners of the truck 4, and a position near the outer periphery of the mounting plate 2 is rotatably attached to the center of a seat plate 6 fixed to the lower surface of the truck 4.

On the lower surface of the seat plate 6, a plurality of thrust load receivers 11 that support the upper surface of the mounting plate 2 are arranged and fixed in a circular shape centering on the pivot shaft 5.

The two wheels 3 of the mounting plate 2 are arranged side by side in the portion of the turning shaft 5, so that load support can be carried out stably.

The second embodiment has the above-described structure, and the lower four corners of the carriage 4 are supported by the wheel unit 1, and the wheel unit 1 has a large eccentric turning shaft 5 position on the mounting plate 2. With the caster function that can be freely rotated, you can move straight, traverse, skew, and rotate on the deck plate.

Next, in the third embodiment shown in FIGS. 6 and 7, a total of five free wheels (casters) 3a are circularly arranged and fixed to the lower surface of the rectangular mounting plate 2 to mount the wheel unit 1a. The wheel unit 1a is formed, and the wheel units 1a are arranged at the four corners of the lower part of the carriage 4 and fixed by the mounting plate 2.

In the third embodiment, since the lower four corners of the carriage 4 are supported by a plurality of free wheels 3a respectively, the free movement on the deck plate is possible and the caster function of each free wheel 3a allows the vehicle to move straight. Besides, it can be traversed, skewed, and rotated without any problems.

[0025]

[Effect of device]

 As described above, according to the present invention, because of the above-described configuration, the wheels do not fall into the recesses of the deck plate, and the construction materials can be transported even on the uneven deck plate. You can do it without any problems.

[Brief description of drawings]

FIG. 1 is a bottom view showing a first embodiment of a carriage.

FIG. 2 is a vertical sectional front view showing an enlarged main part of the above.

FIG. 3 is a bottom view of the above.

FIG. 4 is a front view showing a second embodiment of the carriage.

[Figure 5] Bottom view of the above

FIG. 6 is a front view showing a third embodiment of a carrier vehicle.

FIG. 7 is a bottom view of the above.

[Explanation of symbols]

 1 wheel unit 2 mounting plate 3 wheel 3a free wheel 4 bogie 5 swivel axis 11 thrust load receiver

Claims (2)

[Scope of utility model registration request] 1. A wheel unit is formed by fixing a plurality of wheels to a lower surface of a mounting plate in a circular arrangement so that rotation directions thereof are the same direction, and the wheel unit is arranged at a plurality of lower portions of a bogie. A carrier truck in which a wheel unit is mounted on a carriage so as to be rotatable about a turning shaft provided on a mounting plate at a position eccentric from the center of a wheel arrangement circle. 2. A carrier truck in which a plurality of free wheels are fixed in a circular arrangement on a lower surface of a mounting plate to form a wheel unit, and the wheel units are attached to a plurality of lower portions of a carriage.