JPH0334379Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The invention relates to a vehicle for transporting products such as vegetables, fish, and meat used in supermarkets, restaurants, etc.

(Prior art) The present invention is disclosed in Japanese Utility Model Publication No. 54-17945, in which front, rear, left and right tubular supports b are equipped with rolling wheels a at their lower ends.
The mantle parts d disposed at the four corners of the plurality of shelf boards c are fitted together, and a spacing tube e is interposed between each mantle part d of the vertically adjacent shelf boards c. We proposed a transport vehicle in which a cap f is fitted onto the upper end of a support column b.
(See Figure 4) (Problems to be solved by the invention) In workplaces of supermarkets and restaurants, the transport vehicle is frequently taken in and out of refrigerators and freezers. At this time, there is a large temperature difference between the refrigerator or freezer and the workplace.

In order to prevent the worker who handles the transport vehicle from feeling cold and to reduce the weight of the transport vehicle, the shelf board and the spacing tube are made of synthetic resin.

However, since synthetic resin has low strength, it is necessary to make the tubular support made of metal to reinforce the shelf board and the spacing tube.

As shown in Fig. 6, the cannula part d' of the lowest shelf c is formed to be elongated, and has draft angles (draft angles) above and below the inner circumferential surface for mold removal during molding with synthetic resin. g) and (g) are attached. Therefore, even if the bolt (h) is inserted between the cannula part d' and the strut b, and the nut (i) is screwed and tightened, the upper and lower parts of the cannula part d' and the strut d are A gap t was created between the two, and a sufficient tightening effect could not be obtained.

(Means for solving the problem) The present invention was proposed to solve the above problem. At the same time, a synthetic resin spacing tube is interposed between each of the mantle parts of the adjacent shelf boards, and a cap is attached to the upper end of the support. In the transport vehicle, slits extending in the generatrix direction are provided above and below the cannula part on the lowest shelf plate, and the upper end of the cannula part and the support column, and the lower end part of the cannula part and The present invention relates to a transport vehicle characterized in that bolts are inserted and tightened through each of the pillars.

(Function) As described above, in the present invention, slits extending in the generatrix direction are provided above and below the sleeve portion of the lowest shelf board, so that the plurality of loose pieces created by the slits have a diameter. When a bolt is inserted and tightened across the strut to which the upper end of the cannula part and the cannula part are fitted, and the lower end of the cannula part and the strut, respectively, Each of the free pieces is elastically deformed toward the central axis of the cannula portion and crimped onto the pillar, and the cannula portion is fixed to the pillar in close contact with no gaps.

(Effect of the invention) As described above, according to the invention, slits extending in the generatrix direction are provided above and below the mantle portion of the lowermost shelf board, and a plurality of free pieces cut by the slits are provided with slits extending in the radial direction. By imparting elasticity, the cannula portion, which has a draft angle above and below the inner circumferential surface, can be attached to the support without any gaps.
It is something that can be firmly concluded.

(Example) The present invention will be described below with reference to the illustrated embodiments.

Reference numeral 1 designates tubular metal supports disposed in the front, rear, left, and right directions, and a columnar protrusion 4 that stands up from a mounting seat 3 on which a rolling wheel 2 is mounted is fitted to the lower end of the support.

Reference numeral 5 designates a shelf board made of synthetic resin at the lowermost stage, and a mantle portion 6 disposed at its four corners and having a draft angle on its inner circumferential surface.
is fitted into the support column 1. A slit 7 is provided at the upper and lower ends of the cannula 6 and extends along the generatrix direction.
is provided, and elasticity in the radial direction is imparted to the free piece 6a cut out by the slit 7.

The upper end of the cannula 6 and the strut 1, and the lower end of the cannula 6, the strut 1 and the columnar protrusion 4.
The bolts 8 are inserted through the holes, and the nuts 9 are screwed and tightened.

At this time, the free piece 6a cut out by the slit 7 in the mantle tube part 6 is elastically deformed toward the center axis side of the mantle part 6, and is crimped onto the outer peripheral surface of the support column 1 without any gap. The sleeve portion 6 is firmly fixed to the sleeve.

In the figure, reference numeral 10 denotes a synthetic resin tube fitted to the pillar 1 between the cannula part 6 of the lowermost shelf board 5 and the cannula part of the shelf board adjacent to the upper part of the same shelf board 5. This is a spacing piece. (Figures 2 and 3
(see figure)

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the essential parts of an embodiment of the transport vehicle according to the present invention, and Figs. 2 and 3 are longitudinal sections showing the states before and after the bottom shelf is tightened to the support, respectively. 4 is a front view of a conventional transport vehicle, and FIGS. 5 and 6 are longitudinal sections showing the state of the conventional transport vehicle before and after tightening the lowermost shelf to the support, respectively. It is a front view. 1... Support column, 2... Rolling wheel, 3... Lowermost shelf board, 6... Mantle tube section, 7... Slit, 8... Bolt, 9... Nut, 10... Spacing tube.

Claims (1)

[Scope of utility model registration request] The mantle tubes arranged at the four corners of the plurality of synthetic resin shelf boards are fitted into the front, rear, left and right tubular metal supports with rolling wheels mounted on the lower ends, and each of the adjacent shelf boards is fitted. In a transport vehicle in which a synthetic resin spacing tube is interposed between the mantle parts and a cap is fitted to the upper end of the support, slits extending in the generatrix direction are provided above and below the mantle part in the lowest shelf board. 1. A transport vehicle, characterized in that bolts are inserted and tightened between the upper end of the mantle tube section and the support column, and the lower end of the mantle tube section and the support column.