CN-122029092-A - Trolley unit and method for assembling trolley unit

Abstract

The trolley unit (100) is a trolley unit provided with a traveling trolley (1) capable of traveling by itself and a traction trolley (2) which is pulled by the traveling trolley (1). The traveling carriage (1) has a1 st mounting table (10) on which a load can be mounted, the traction carriage (2) has a2 nd mounting table (20) on which a load can be mounted, the 2 nd mounting table (20) is disposed so as to cover the 1 st mounting table (10) from above, and the traveling carriage (1) and the traction carriage (2) are connected by fitting a convex portion (32) provided on one of the upper surface of the 1 st mounting table (10) and the lower surface of the 2 nd mounting table (20) with a concave portion (36) provided on the other.

Inventors

• Da Shi Zhen

Assignees

• 住友重机械工业株式会社

Dates

Publication Date

20260512

Application Date

20241007

Priority Date

20231023

Claims (8)

1. 1. A trolley unit comprising a traveling trolley capable of self-traveling and a traction trolley towed by the traveling trolley, The traveling carriage has a1 st loading table capable of loading goods, The traction trolley is provided with a2 nd loading platform capable of loading cargoes, The 2 nd stage is arranged to cover the 1 st stage from above, The traveling carriage and the traction carriage are connected by fitting a convex portion provided on one of the upper surface of the 1 st stage and the lower surface of the 2 nd stage with a concave portion provided on the other.
2. 2. The dolly unit according to claim 1, having a1 st connection member detachably mounted to an upper surface of the 1 st mount table, and having the recess.
3. 3. The trolley unit according to claim 2, wherein, The 1 st mounting table has screw holes provided in advance for mounting at least two accessory device parts, The 1 st connecting part is fixed to the threaded hole through a bolt.
4. 4. A trolley unit according to any one of claims 1 to 3, wherein, The convex portion is provided on the 1 st stage or the 2 nd stage so as not to be displaceable.
5. 5. A trolley unit according to any one of claims 1 to 3, wherein, The convex portion and the concave portion are provided at a plurality of positions sandwiching a steering center of the traveling carriage.
6. 6. A trolley unit according to any one of claims 1 to 3, wherein, The traction carriage has fence members respectively opposed to four sides of the running carriage.
7. 7. A carriage unit according to any one of claims 1to 3, having an advancing and retreating mechanism that advances and retreats the convex portion or the concave portion.
8. 8. A method for assembling a pallet unit comprising a traveling pallet having a1 st mounting table on which a load can be mounted and capable of traveling by itself, and a traction pallet having a2 nd mounting table on which a load can be mounted and being towed by the traveling pallet, The traction trolley has fence members respectively opposite four sides of the traveling trolley, One of the upper surface of the 1 st stage and the lower surface of the 2 nd stage is provided with a convex portion, the other is provided with a concave portion, The assembly method comprises the following steps: Covering the traction trolley from above the traveling trolley; positioning the 2 nd stage above the 1 st stage; the fence member is disposed to surround four sides of the traveling carriage, and The traction carriage is connected to the running carriage by engaging the convex portion with the concave portion.

Description

Trolley unit and method for assembling trolley unit Technical Field The present invention relates to a truck unit and a method of assembling the truck unit. Background There is known a technique of towing a truck by a truck. For example, there is a technique of transporting a pallet having a pallet by a transport vehicle having a traction jig. The traction jig guides both left and right side surfaces of the carriage by a pair of supporting parts protruding upward, presses the front surface of the carriage by a plurality of pressing parts facing forward, and presses the rear surface of the carriage by a movable stopper, thereby connecting the carriage with the carriage. Technical literature of the prior art Patent literature Patent document 1 Japanese patent laid-open No. 2023-14790 Disclosure of Invention Technical problem to be solved by the invention In the above-described connection technique, the trolley and the carriage are connected by surrounding and supporting the carriage with the members arranged in the front, rear, left, and right directions, and therefore the size of the connectable carriage is limited. Thus, the above-described technique has a disadvantage in that it is not easily limited by the size of the carriage. It is an exemplary object of one embodiment of the present invention to provide a trolley unit which is not subject to traction trolley size limitations. Means for solving the technical problems The carriage unit according to one embodiment of the present invention includes a traveling carriage capable of traveling by itself and a traction carriage that is towed by the traveling carriage, and the traveling carriage includes a 1 st mounting table on which a load can be mounted. The traction trolley has a2 nd loading table capable of loading cargoes. The 2 nd stage is disposed so as to cover the 1 st stage from above, and the traveling carriage and the traction carriage are connected by fitting a convex portion provided on one of the upper surface of the 1 st stage and the lower surface of the 2 nd stage with a concave portion provided on the other. Another embodiment of the present invention is a method of assembling a trolley unit. The method is a method for assembling a pallet unit provided with a traveling pallet having a 1 st mounting table on which a load can be mounted and capable of traveling by itself and a traction pallet having a2 nd mounting table on which a load can be mounted and being towed by the traveling pallet, wherein the traction pallet has rail members facing four sides of the traveling pallet, respectively. The method for assembling the vehicle comprises the steps of covering the traction trolley from above the traveling trolley, positioning the 2 nd carrying table above the 1 st carrying table, arranging the fence member to surround four sides of the traveling trolley, and connecting the traction trolley to the traveling trolley by engaging the convex part with the concave part. Any combination of the above components or a method of replacing the components or expressions of the present invention with each other in a method, a system, or the like is also effective as an embodiment of the present invention. Effects of the invention According to the present invention, it is possible to provide a truck unit that is less susceptible to traction truck size restrictions. Drawings Fig. 1 is a perspective view showing an example of a carriage unit according to the embodiment. Fig. 2 is a side sectional view showing a connection mechanism of the dolly unit of fig. 1. Fig. 3 is a top view showing the rail member of the traction carriage of fig. 1. Fig. 4 is a perspective view showing the traveling carriage of fig. 1. Fig. 5 is a view showing a wheel arrangement of the traveling carriage of fig. 1. Fig. 6 is a block diagram schematically showing the configuration of the carriage unit of fig. 1. Fig. 7 is a side cross-sectional view showing a modification example provided with a retracting mechanism. Detailed Description The present invention will be described below with reference to the drawings according to exemplary embodiments. In the embodiment and the modification, the same or equivalent constituent elements and components are denoted by the same reference numerals, and overlapping description thereof is omitted as appropriate. In addition, in each drawing, the dimensions of the components are appropriately enlarged or reduced for the convenience of understanding. In the drawings, parts of the parts not essential to the description of the embodiments are omitted. Further, although the terms including ordinal numbers 1 and 2 are used to describe various components, the terms are only used for the purpose of distinguishing one component from other components, and the components are not limited by the terms. Embodiment(s) The structure of the carriage unit 100 according to the embodiment will be described with reference to the drawings. Fig. 1 is a perspective view sho