JPH0416772Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a handcart with a frame and basket-shaped side walls, which is used for transporting goods in supermarkets, stores, factories, etc. It is.

[Prior Art] Conventionally, as shown in Fig. 7, four casters (a) including two directional wheels (a) are attached to the four corners of the lower surface on a loading platform (b), with a frame wall (c) at the back and both sides, and a frame wall (c) at the front. The frame door d is pivoted to open and close freely, and as shown in Fig. 8, there is an L-shaped girder e forming the back side and one side, a side girder f pivoted to one end of the frame door, and a side girder f on the back side, as shown in Fig. 8. A type consisting of a bottom frame g pivoted to the lower end and a locking rod h on the front has been proposed.

[Problems to be solved by the invention] All of the conventional devices mentioned above were made of steel, and the frame wall c, frame door d, L-shaped girder e, and side girder f were all framed with steel pipes and welded. However, since it includes a hinge part, it requires a large number of welding steps, is expensive, and has the drawbacks of being heavy.

[Means for Solving the Problems] Here, this invention has three or four side frame walls installed on a loading platform or a girder, which are placed above an outer frame made of an aluminum alloy having a hollow part and a protrusion on one side. Only the corner portions have protrusions cut out and bent into an almost inverted U shape, and an inner frame made of the same material as the outer frame is fixed between the remaining protrusions with fixing devices such as rivets to form a frame shape, A plurality of notches are provided in the protrusions on the vertical part of the outer frame of one of the frame walls in which one adjacent frame wall is pivotally connected to the other frame wall, and the opening portion is inserted into these notches through the protrusions. The present invention proposes a basket-shaped handcart in which the outer frame of the other frame wall is fixed to an inserted hinge ring, thereby attempting to solve the above problems at once.

[Example] This invention will be explained below with reference to the illustrated example.

First of all, the first embodiment shown in Figs. 1 to 5 consists of a loading platform 2 with casters 1 attached to the four corners, frame walls 3 on the back and both sides, and a frame door 4 rotatably supported on the front. In this invention, the frame wall 3 and frame door 4 are constructed as described below. That is, in FIG. 2, a tube material 7 consisting of a hollow part 5 made of aluminum alloy and a protrusion 6 integrally formed is cut out only at the bending part, and the protrusion 6 is cut out so that the protrusion 6 faces inward. It is bent to form a substantially U-shaped outer frame 8, and a horizontal inner frame 9 and a vertical inner frame 1 made of the same material as the outer frame 8.
0 is fixed between the protrusions 6 or between the protrusions 6 and the lower edge member 2' using a fixing device such as a rivet to form a grid-like shape as a whole. In this case, the horizontal inner frame 9 is made of a thick hollow material, and the vertical inner frame 1 is passed through it.
Fix the intersection with 0 with rivets etc. (Second A
(see figure). Furthermore, the outer frame 8 of the frame wall 3 that pivotally supports the frame door 4
In this case, notches 11 are formed in several places on the vertical part of the protrusion 6 (see FIG. 2), and a hinge ring 13 having an opening 12 is prepared, and the protrusion 6 is inserted from the opening 12. The hinge ring 13, which has been inserted into the tube member 7 in a protruding state, is rotated within the notch 11, and then the frame door 4 is opened at the opening 12 of the hinge ring 13, as shown in FIG. be welded together. In this state, the hinge ring 13 is prevented from moving up and down by the upper and lower protrusions 6 of the notch 11, while allowing the frame door 4 to rotate.

In addition, as shown in FIG. 4, instead of directly welding the hinge ring 13 to the outer frame 8 of the door frame 4, a structure may be adopted in which a joint material 14 is interposed in the middle, as shown in FIG. Other connections between the frame walls 3 may be made by the method described above, or may be made by other methods as appropriate, such as by welding the outer frames 8 to each other via the joint material 14.

In the second embodiment shown in FIG. 6, there is an L-shaped girder 5 forming a back surface and one side surface, a side frame 16 pivoted to one end of the L-shaped girder 5, and a bottom frame 17 pivoted to the lower end of the back surface.
This figure shows a basket-shaped handcart constructed by using a lattice-like framework similar to that shown in FIG. Note that the first
Explanation will be omitted by assigning the same reference numerals to the same or the same parts as in the embodiment shown in the figures.

[Effects of the invention] According to this invention, the following effects can be obtained.
That is, the frame wall can be easily and quickly fixed without welding by bending and notching the outer frame made of aluminum alloy and riveting the inner frame made of the same material.

Simply form a notch in one of the protrusions between the frame wall and the frame door to be pivotally attached, and insert the hinge ring into the notch by passing the remaining protrusion through the opening. Since the pivot portion can be configured, there is no need to use extra metal fittings (hinge, etc.).

Since the entire frame wall can be made of aluminum alloy material, the weight of the truck can be reduced.

[Brief explanation of drawings]

Figure 1 is a perspective view of the first embodiment of this invention;
The figure is an enlarged side view of a portion of the same, FIG. 2A is an enlarged sectional view taken along the - line in FIG. 2, FIG. 3 is an enlarged sectional view taken along the - line in FIG. FIG. 6 is a perspective view of the second embodiment, and FIGS. 7 and 8 are perspective views of the conventional example. In the figure, 2... loading platform, 3... frame wall, 4
...Frame door, 5...Hollow part, 6...Protrusion, 8...Outer frame, 9...Horizontal inner frame, 10...Vertical inner frame, 11...
...notch, 12...opening, 13...hinge ring, 1
4...joint material, 15...L-shaped girder, 16...side frame, 17...joint material.

Claims (1)

[Scope of claim for utility model registration] (1) Each frame wall on three or four sides installed on a loading platform or girder is limited to only the upper corner portion of the outer frame having a hollow part made of aluminum alloy and a protrusion on one side. The protrusions are cut out and bent into an almost inverted U-shape, and an inner frame made of the same material as the outer frame is fixed between the remaining protrusions with fixing devices such as rivets to form a frame shape. A hinge in which notches are provided at multiple locations on the protrusions on the vertical part of the outer frame of one of the frame walls that pivotally connects the frame wall to the other frame wall, and the opening portion is inserted into these notches through the protrusions. A basket-shaped handcart made by fixing the outer frame of the other frame wall to the ring. (2) The basket-shaped handcart according to claim 1, wherein the hinge ring is fixed to the outer frame of the other frame wall via a joint material.