Trolley parts

Abstract

To provide a cart part that can reduce the workload. 【Solution means】The cart part 100 that constitutes a cart using a scaffolding part with a wedge fastening type includes a square pipe 110, a pair of casters 120a and 120b, a pair of protruding pipes 130a and 130b, a pair of vertical pipes 140a and 140b, a connecting pipe 150, a pair of connecting structures 160a and 160b, and a pair of fastening parts 170a and 170b. The pair of connecting structures are provided at the upper end portions of each of the pair of vertical pipes and can coaxially connect a support part, which is one of the scaffolding parts, in the vertical direction. The pair of fastening parts are respectively provided on the side surfaces of the pair of vertical pipes on the opposite side of the connection portion with the protruding pipes and below the connection portion, and can receive wedge parts provided at both ends of a horizontal cross member, which is one of the scaffolding parts.

Description

Technical Field

[0001] This specification discloses technologies related to trolley parts.

Background Art

[0002] Patent Document 1 describes trolley parts that constitute a trolley using wedge-fastening type scaffolding parts. The trolley parts of Patent Document 1 include a rectangular frame having six or more casters. At each of the four corners of the rectangular frame, column holders capable of connecting the scaffolding parts are provided.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The trolley parts of Patent Document 1 have the problem that since the rectangular frame needs to have sufficient size and strength for arranging six or more casters, the trolley parts themselves become large and heavy, and are difficult to handle in operations such as carrying and assembly.

Means for Solving the Problems

[0005] One form disclosed in this specification is a carriage component that constitutes a carriage using a wedge-tightening type scaffold component. This carriage component includes a square pipe forming a rectangular tubular shape having a bottom surface and side surfaces, a pair of casters respectively provided at both ends of the bottom surface, a pair of protruding pipes respectively extending horizontally from both ends of the side surfaces, a pair of vertical pipes provided at the tip ends of each of the pair of protruding pipes and extending vertically, a connecting pipe extending horizontally from the lower end of one of the vertical pipes in the pair of vertical pipes to the lower end of the other vertical pipe to connect the pair of vertical pipes, a pair of connecting structures provided at the upper ends of each of the pair of vertical pipes and capable of coaxially connecting in the vertical direction a support component which is one of the scaffold components, and a pair of fastening parts provided respectively on the side surfaces of the pair of vertical pipes on the opposite side of the connection part with the protruding pipes and below the connection part and capable of receiving wedge parts provided at both ends of a cross-frame component which is one of the scaffold components. By connecting between two carriage components with two cross-frame components, a carriage using a wedge-tightening type scaffold component can be constituted. According to this carriage component, since a pair of protruding pipes, a pair of vertical pipes, and a connecting pipe are provided on a square pipe provided with a pair of casters, miniaturization and weight reduction of the carriage component itself can be achieved. As a result, the burden of operations such as carrying and assembling can be reduced. Also, according to this carriage component, a carriage of any size can be constituted by changing the lengths of the two cross-frame components connecting between two carriage components.

Brief Description of the Drawings

[0006]

Figure 1

Figure 2

Embodiments for Carrying Out the Invention

[0007] FIG. 1 is a perspective view showing a carriage 10. The carriage 10 is a transportation device configured using wedge-fastening type scaffolding components. The carriage 10 is composed of combining a plurality of wedge-fastening type scaffolding members with two carriage components 100. In the example of FIG. 1, the carriage 10 includes, as a plurality of wedge-fastening type scaffolding members, two cross-frame components 610, two cross-frame components 620, two cross-frame components 630, four support column components 710, two floor components 810, and one floor component 820.

[0008] FIG. 2 is a perspective view showing two carriage components 100. The carriage component 100 constitutes a carriage using wedge-fastening type scaffolding components. The carriage component 100 includes a square pipe 110, a pair of casters 120a, 120b, a pair of protruding pipes 130a, 130b, a pair of vertical pipes 140a, 140b, a connecting pipe 150, a pair of connecting structures 160a, 160b, and a pair of fastening parts 170a, 170b.

[0009] The square pipe 110 of the carriage component 100 forms a rectangular tubular shape having a bottom surface 111 and side surfaces 112. The square pipe 110 is a metal component.

[0010] The pair of casters 120a, 120b in the carriage component 100 are wheels that can freely change their directions. The pair of casters 120a, 120b are respectively provided at both ends of the bottom surface 111 of the square pipe 110. The caster 120a is provided at one end 111a of the bottom surface 111 of the square pipe 110. The caster 120b is provided at the other end 111b of the bottom surface 111 of the square pipe 110. The pair of casters 120a, 120b are joined to the square pipe 110 by bolts and nuts.

[0011] The pair of protruding pipes 130a and 130b in the cart part 100 extend horizontally from both ends of the side surface 112 of the square pipe 110 respectively. The protruding pipe 130a is provided at one end 112a of the side surface 112 of the square pipe 110. The protruding pipe 130b is provided at the other end 112b of the side surface 112 of the square pipe 110. The pair of protruding pipes 130a and 130b are metal parts. The pair of protruding pipes 130a and 130b are joined to the square pipe 110 by welding.

[0012] The pair of vertical pipes 140a and 140b in the cart part 100 are provided at the respective tip ends 138 of the pair of protruding pipes 130a and 130b. The pair of vertical pipes 140a and 140b extend vertically from the respective tip ends 138 of the pair of protruding pipes 130a and 130b. The vertical pipe 140a extends vertically from the tip end 138 of the protruding pipe 130a. The vertical pipe 140b extends vertically from the tip end 138 of the protruding pipe 130b. The pair of vertical pipes 140a and 140b are metal parts. The vertical pipe 140a is joined to the protruding pipe 130a by welding. The vertical pipe 140b is joined to the protruding pipe 130b by welding.

[0013] The connecting pipe 150 of the cart part 100 extends horizontally from the lower end 148 of one vertical pipe 140a to the lower end 148 of the other vertical pipe 140b to connect the pair of vertical pipes 140a and 140b. The connecting pipe 150 is a metal part. The connecting pipe 150 is joined to the pair of vertical pipes 140a and 140b by welding.

[0014] The pair of connecting structures 160a and 160b in the cart part 100 are provided at the respective upper ends 142 of the pair of vertical pipes 140a and 140b. The pair of connecting structures 160a and 160b can coaxially connect a column part 710, which is one of the scaffolding parts, in the vertical direction.

[0015] The pair of fastening parts 170a and 170b in the cart part 100 are respectively provided on the side surfaces of the pair of vertical pipes 140a and 140b on the opposite sides of the connection parts (tip parts 138) with the protruding pipes 130a and 130b and below the connection parts (tip parts 138). The fastening part 170a is provided on the vertical pipe 140a. The fastening part 170b is provided on the vertical pipe 140b. The pair of fastening parts 170a and 170b can receive the wedge parts 612 provided at both ends of the cross - frame part 610 which is one of the scaffold parts.

[0016] According to the cart part described above, since the pair of protruding pipes 130a and 130b, the pair of vertical pipes 140a and 140b, and the connecting pipe 150 are provided on the corner pipe 110 provided with the pair of casters 120a and 120b, miniaturization and weight reduction of the cart part 100 itself can be achieved. As a result, the burden of operations such as carrying and assembly can be reduced. Further, according to this cart part 100, by changing the length of the two cross - frame parts 610 that connect between the two cart parts 100, a cart 10 of any size can be configured.

[0017] The technology disclosed in this specification is not limited to the above - described embodiments, examples, and modification examples, and can be realized in various configurations without departing from the gist thereof. For example, among the technical features in the above - described embodiments, examples, and modification examples, those corresponding to the technical features in each form described in the column of the outline of the invention can be appropriately replaced and combined in order to solve some or all of the above - mentioned problems, or to achieve some or all of the above - mentioned effects. Also, the technical features not described as essential in this specification can be appropriately deleted.

Explanation of Reference Numerals

[0018] 10... Cart 100... Cart part 110... Corner pipe 111... Bottom surface 111a... End part 111b... End part 112... Side surface 112a…End 112b…End 120a…Caster 120b…Caster 130a…Protruding pipe 130b…Protruding pipe 138…Tip 140a…Vertical pipe 140b…Vertical pipe 142…Upper end 148…Lower end 150…Connecting pipe 160a…Connection structure 170a…Tightening part 170b…Tightening part 610…Horizontal frame part 612…Wedging part 620…Horizontal frame part 630…Horizontal frame part 710…Support part 810…Floor part 820…Floor part

Claims

【Claim 1】 A carriage part that constitutes a carriage using a wedge-fastening type scaffolding part, comprising: a square pipe having a rectangular cylindrical shape with a bottom surface and side surfaces; a pair of casters respectively provided at both ends of the bottom surface; a pair of protruding pipes respectively extending horizontally from both ends of the side surface; a pair of vertical pipes provided at the tip ends of the pair of protruding pipes and respectively extending vertically; a connecting pipe extending horizontally from the lower end of one of the pair of vertical pipes to the lower end of the other vertical pipe to connect the pair of vertical pipes; a pair of connecting structures provided at the upper ends of the pair of vertical pipes and capable of coaxially connecting in the vertical direction a support part, which is one of the scaffolding parts; a pair of fastening parts respectively provided on the side surfaces of the pair of vertical pipes on the side opposite to the connection parts with the protruding pipes and below the connection parts, and capable of receiving wedges provided at both ends of a horizontal cross-member part, which is one of the scaffolding parts and a carriage part having the same.

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