JPH0415570Y2 - - 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 inventor first wrote in Utility Model Application Publication No. 62-36864,
The sleeves c provided at the four corners of the plurality of synthetic resin shelf boards b are fitted into the front, rear, left and right tubular metal struts a on which wheels are mounted on the lower ends, and the mantles c are arranged vertically adjacent to each other. In the transport vehicle, in which a synthetic resin spacing tube d is interposed between each of the mantle portions c of the shelf board b, and an uppermost shelf board fastening member e is fitted to the upper end of the support column a. We propose a transport vehicle in which a tubular cushion material f made of rubber or soft synthetic resin is interposed between the sleeve part c of the uppermost shelf board b and the uppermost spacing tube d, and the transport vehicle has a high temperature. In a workshop, when the synthetic resin part expands more than the metal support, it has elasticity that is interposed between the mantle part c of the uppermost shelf board and the uppermost spacing maintenance pipe d. A tubular cushion material f made of rubber or soft synthetic resin is compressed between the two and elastically contracts, absorbing the difference in expansion between the synthetic resin part and the metal support, and the carrier is in a freezer, In a refrigerator, when the synthetic resin part contracts more than the metal support, the tubular cushion material f made of rubber or soft synthetic resin expands elastically, thereby causing the synthetic resin part to shrink more than the metal support. The difference in shrinkage between the carrier and the metal support is absorbed to prevent rattling or loosening of the carrier.

(Problems to be solved by the invention) In the conventional transport vehicle, the synthetic resin shelf b
Then, the spacing tube d section expands more than the metal strut a, and as shown in FIG. If f contracts, moisture exists between the cushion material f and the spacing tube d, making it slippery, or if an impact is applied to the cushion material f, as shown in Figure 10. The lower end surface of the cushion material f slides on the upper end surface of the spacing tube d, and the lower end of the cushion material f fits into the outer peripheral surface of the upper end of the spacing rod d, causing the cushion material f to malfunction. There was a problem with getting used to it.

(Means for solving the problem) The present invention was proposed to solve the above problem. In addition to fitting the mantle parts arranged at the four corners of the resin shelf board, synthetic resin spacing tubes are interposed between the mantle parts of the vertically adjacent shelf boards, and the support pillars are A top shelf board tightening member is fitted to the upper end, and a tubular cushion material made of rubber or soft synthetic resin is interposed between the mantle part of the top shelf board and the top space maintaining tube. The present invention relates to a transport vehicle characterized in that rigid rings are fitted onto the outer peripheral surfaces of the upper and lower ends of the tubular cushion material, respectively.

(Function) As mentioned above, in the transport vehicle according to the present invention, the rubber or soft synthetic resin material interposed between the mantle part of the uppermost synthetic resin shelf board and the uppermost spacer tube Since a rigid ring body is fitted on the outer peripheral surface of both upper and lower ends of the tubular cushion material, the rigidity of the ring body restrains the radial deformation of both ends of the tubular cushion material, and the synthetic resin When the shelf plate and the spacing tube expand significantly and the tubular cushion material contracts in both, the rigid ring prevents the lower end of the cushion material from sliding against the upper end surface of the uppermost spacing tube. Therefore, the lower end edge of the tubular cushion material does not fit into the upper end of the spacing tube.

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

Reference numeral 1 denotes the left and right tubular metal columns with roller wheels 2 mounted on their lower ends, and mandrels 4 disposed at the four corners of a plurality of shelves 3 made of synthetic resin are fitted into each column 1. A spacer tube 5 made of synthetic resin is fitted to the support 1 between the tube portions 4 of the vertically adjacent shelf boards 3.

In the figure, 5' is a synthetic resin fitted to the support 1 between the mantle 4 of the lowermost shelf board 3 and the mounting frame piece 6 of the wheel 2 attached to the lower end of the support 1. This is a manufactured spacer tube.

Further, between the sleeve portion 4 of the uppermost shelf board 3 and the uppermost spacing tube 5, a stretchable tubular cushion member 7 made of rubber or soft rubber is fitted onto the support column 1.

Furthermore, a rigid ring body 7a made of metal, hard synthetic resin, or hard rubber is fitted on the outer periphery of both upper and lower ends of the tubular cushion member 7. In the figure, reference numerals 7b and 7b' indicate retaining rings for the rigid ring body 7a provided on the cushion material 7.

A nut holder 8 is fitted into the upper end of the pillar 1, and a locking tongue piece 10 cut and raised from the pillar 1 is engaged with an annular recess 9 provided on the outer peripheral surface of the holder 8. A nut holder 8 is fixed to 1.

A square nut 12 is fitted into a vertical hole 11 provided along the axial direction of the nut holder 8, and is made of synthetic resin, rubber, etc., and fitted into the sleeve 4 of the uppermost shelf board 3. A tightening adjustment bolt 14 loosely inserted into the elastic cap 13 is screwed into the nut 12.

The illustrated embodiment is configured as described above, so that when the transport vehicle is in a hot workplace, the synthetic resin spacing tube 5 and the mantle portion 4 of the shelf board 3 are When it expands significantly, the cushion material 7 made of rubber or soft synthetic resin is compressed between the sleeve 4 of the uppermost shelf board 3 and the uppermost spacing tube 5, as shown in FIG. It elastically contracts to absorb the difference in expansion between the metal support 1, the synthetic resin spacing tube 5, and the synthetic resin shelf board 3.

In addition, if the transport vehicle is inside a refrigerator or freezer and the synthetic resin spacing tube 5 and the synthetic resin shelf board 3 contract significantly more than the tubular metal support 1, the rubber or soft synthetic resin The tubular cushion material 7 is released or reduced in compression and expands elastically to absorb the difference in shrinkage between the metal support 1 and the synthetic resin spacing tube 5 and shelf board 3. .

If any looseness occurs between the assembly parts of the transport vehicle during use, the tightening adjustment bolt 14 is tightened and adjusted to remove the looseness.

As described above, according to the embodiment, between the mantle tube part 4 of the uppermost synthetic resin shelf board 3 in the transport vehicle and the uppermost synthetic resin spacing tube 5, the rubber or soft synthetic resin The tubular cushion material 7 is fitted into the tubular metal support 1, and the cushion material 7 is
The cushion material can absorb the difference in expansion and contraction that occurs between the synthetic resin part and the metal support of the transport vehicle, thereby preventing rattling or loosening of the transport vehicle. When 7 contracts,
When there is moisture between the cushion material 7 and the synthetic resin spacing tube 5 on the uppermost stage and the spacer is in a state where it is easy to slide, or when the tubular cushion material 7 is forced against the synthetic resin shelf plate 3 on the uppermost stage. When a load is unloaded and receives a shock, the lower end surface of the tubular cushion 7 tends to slide horizontally on the upper end surface of the uppermost spacing tube 5, but the rigid ring 7a The deformation and displacement of the tubular cushion material 7 in the radial direction is restrained, and the lower end of the tubular cushion material 7 fits into the outer periphery of the uppermost spacing tube 5 as in the conventional case, thereby impairing the function of the tubular cushion material 7. Never.

(Effect of the invention) As described above, in the transport vehicle according to the present invention, the elastic rubber or soft synthetic resin interposed between the mantle part of the uppermost shelf board and the uppermost spacer tube The tubular cushion material made of aluminum absorbs the difference in expansion and contraction that occurs between the synthetic resin part and the metal support of the transport vehicle, and prevents rattling and loosening of the transport vehicle. In addition, by fitting rigid rings to the outer peripheral surfaces of the upper and lower ends of the tubular cushion material, displacement deformation in the radial direction of the tubular cushion material is restrained, and when the tubular cushion material contracts, its lower end portion The tubular cushion material will not fit into the uppermost synthetic resin spacing tube and impair the function of the tubular cushion material.

[Brief explanation of drawings]

1 and 2 are vertical cross-sectional views showing the top portion of the struts in the carrier vehicle according to the present invention, showing the contracted state of the tubular cushion material, FIG. 3 is a slope view of the carrier vehicle according to the present invention, and FIG. 4 5 is a side view thereof, FIG. 5 is a plan view thereof, FIG. 6 is a slope view of the top portion thereof, FIG. 7 is a slope view of the tubular cushion material, FIG. 8 is an exploded slope view thereof, and FIGS. 9 and 10. FIG. 3 is a vertical cross-sectional view showing the operating state of the tubular cushion material in a conventional transport vehicle. 1...Metal support, 2...Rolling wheels, 3...Shelf board,
4... Trunk tube portion, 5... Spacing tube, 7a... Rigid ring body.

Claims (1)

[Scope of utility model registration request] The sleeves provided at the four corners of the plurality of synthetic resin shelf boards are fitted to the front, rear, left and right tubular metal supports with rolling wheels mounted on the lower ends, and the above-mentioned shelf boards adjacent to each other above and below are fitted. A synthetic resin spacing tube is interposed between each of the cannula parts, and the uppermost shelf plate tightening member is fitted to the upper end of the pillar, and the cannula part of the uppermost shelf plate and the uppermost shelf plate are connected to each other. In a transport vehicle in which a tubular cushion material made of rubber or soft synthetic resin is interposed between a spacer and a spacing tube, a rigid ring body is fitted to the outer peripheral surface of the upper and lower ends of the tubular cushion material, respectively. Characteristic transport vehicle.