KR100364985B1 - A combining apparatus of a cart's grip - Google Patents

Abstract

The present disclosure relates to an assembly coupling device for a cart push rod that improves the assembly structure of the push rod part that the user grips and drives the cart to facilitate assembly production, as well as to enhance the appearance of the cart.

Since the cart assembly of the present invention is not required for welding, it is not necessary to perform post-treatment such as trimming of the work site after the work, so that the work can be quickly performed, and the finishing part also has a beautiful advantage as an assembly structure. Moreover, if one side of the push rod is broken, it is necessary to disassemble the connector and replace only the broken part, thereby making repairs easy and of course having economic advantages. In addition, the assembly is firm, and the product has a feature that can extend the life by being robust.

Description

A combining apparatus of a cart's grip

The present invention relates to a cart for carrying goods in a shopping mall or a supermarket, and in particular, a cart pusher that improves the assembly structure of the push rod part that the user grasps and pushes the cart to facilitate the assembly production and the appearance of the cart. It relates to an assembly coupling device of.

In general, carts are used to carry goods and display items in large shopping malls such as shopping malls and supermarkets, or to allow buyers to move around and purchase goods. Such a cart is usually provided with a caster (wheels) at the bottom and a loading portion for loading an object thereon, and at the same time is provided with a push rod in a convenient position for hand-holding so that the user can easily push.

The push rod is generally composed of a handle by coupling a horizontal rod to the ends of a pair of fixed sides facing upwards from the left and right sides of the cart frame. At this time, conventionally, the horizontal rods are integrally welded to the ends of the side rods, or tied to the upper ends of the sides of the horizontal rods using wires and the like.

Due to this structure, since the former is integrated by welding, it requires post-processing to trim the welded area after welding, which makes the work slow and coarse, and welds and fixes it, so once it is manufactured, one part is crushed or damaged. Not only is it difficult to replace, but the whole of the bulkhead has to be replaced, thereby increasing the economic burden. On the other hand, in the latter case, since the binding is fixed by using a wire or the like, this also has a disadvantage that the coupling site is coarse, and the coupling site is easily destroyed during use. Due to this, in the past, not only the assembly productivity was lowered in the manufacture of the cart mill but also the appearance was also poor.

Accordingly, an object of the present invention is to devise to solve the above-mentioned drawbacks, to improve the assembly structure of the push rod portion that the user grabs and pushes the cart to facilitate assembly production as well as to enhance the appearance of the cart. It is to provide an assembly device for cart cart.

1 is an exploded perspective view showing the assembly assembly device of the cart according to the invention,

2a and 2b is a front view and a side view showing a horizontal bar of the present device shown in FIG.

3a to 3d are views showing the connector of the present device shown in FIG.

4A and 4B are cross-sectional views taken along lines A-A and B-B of FIG. 3A;

5a to 5c is a front view, a plan view and a side view showing a coupling structure of the device,

6 is a cross-sectional view showing a coupling structure of the device;

Figure 7 is a use state showing a use example of the lock in the present device.

* Code descriptions for the main parts of the drawings

10: horizontal bar 11: inner press-in protrusion

12: hollow 20: connector

21: crimping projection 22: insertion part

23: engaging projection 24: connection portion

25: fastening hole 26: fixing groove

30: side 40: fastening bolt

50: fastener 51: hook

52: locking piece 53: locking groove

54 release plate 55 through hole

56: hanging groove

Cart cart assembly according to the present invention for achieving the above object is a cart used for transporting goods, the side protruding upwards to both sides of the cart is fixed to the lower portion, while the one side portion in a circular shape A connector having a plurality of elastic crimping protrusions arranged in a protruding arrangement and a fastening hole communicating with the center thereof on the other side thereof; A hollow horizontal bar into which the compression protrusions enter; And a fastening bolt fastened to the fastening hole of the connector to press the compressed protrusions inserted into the horizontal bar to the outside.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exploded perspective view showing the assembly assembly device of the cart according to the present invention.

As shown in the drawing, the apparatus includes a horizontal bar 10 and compression protrusions 21 which are inserted into and mounted at the ends of the horizontal bar 10 to squeeze and fix the inside to protrude one side and to the side of the cart side to side. The connector 20 to which the 30 is inserted and fixed, and the fastening bolt 40 for fastening the connector 20 to the horizontal rod 10 by opening the crimping protrusion 21 to the outside by being fastened to the connector 20. Equipped. The device is also extrapolated to the lock 50 on the outer peripheral surface of the horizontal bar (10). The lock 50 is provided with a locking piece 52 connected to the hook 51 and fixed to the other locking port, and a locking groove 53 to which the locking piece 52 is inserted and fixed. For example, if a 500 won coin) is put on and pushed into the lock opening 50, it is provided with the release plate 54 which can release the lock piece 52 from the lock groove 53. Locking device 50 is provided with a locking groove 56 in contact with the through-hole 55 and is fixed to the locking projection 23 protruding the outer circumferential surface of the insertion portion 22 of the connector 20, the horizontal bar (10) In the state extrapolated to the connector 20 is fixed to the coupling.

In particular, a plurality of inner pressurization protrusions 11 recessed inwardly protrude around the inner circumferential surface of the corresponding portion of the horizontal bar 10 into which the pressing protrusion 21 of the connector 20 is inserted. As a result, the inner pressurization protrusion 11 pressurizes the outer circumferential surface of the pressurization protrusions 21 of the connector 20 that enters the hollow 12 of the horizontal rod 10 to further double the coupling force.

Detailed description of the components of the present device will be described later with reference to FIGS.

2a and 2b is a front view and a side view showing a horizontal bar of the present device shown in Figure 1, the horizontal bar 10 is a hollow circular rod as shown, the circumference at its end circumferentially inward indentation protrusion (11) are protruding. The inner pressurization protrusions 11 are formed to be equally spaced apart from each other, and have a certain elasticity to elastically press the corresponding portions when the pressurization protrusions of the connector are not shown.

3A to 3D are views showing the connector of the present device shown in FIG. 1, which shows a front view, a top view, a side view, and a bottom view, respectively. In particular, FIGS. 4A and 4B are cross-sectional views taken along line A-A and line B-B of FIG. 3A, respectively, to explain the detailed structure of the crimp protrusion shown in FIG. 3.

The connector 20 is the compression protrusions 21 are protruding toward one side of the upper end. The pressing protrusions 21 are branched into four in the shape of a rod, and the four pressing protrusions are connected to the connection part 24 in pairs as shown in FIG. 4A. Of course, the two pairs of pressing projections 21 are also connected to each other as shown in Figure 4b so that the elastic force is doubled. Therefore, when the above-mentioned fastening bolt (not shown) enters and fastens therebetween, the four pressing protrusions 21 form two pairs and are divided to both sides to pressurize and fix the corresponding inner surface of the horizontal bar not shown. An annular inserting portion 22 is formed spaced apart from the pressing projections 21 by a predetermined interval, and a horizontal rod is inserted into the inserting portion 22 and the outer surface portion is inserted into the lock hole. In particular, a locking projection 23 having elasticity protrudes from the outer circumferential surface of the insertion portion 22. The locking protrusion 23 is caught in the locking groove of the locking tool to fix the locking tool to the connector 20. On the rear surface of the connector 20 protruding from the pressing protrusions 21, a fastening hole 25 into which the fastening bolt is inserted is formed and is in communication with the centers of the four pressing protrusions. As a result, the fastening bolt is fastened to the fastening hole 25 to penetrate the center of the crimping protrusion 21 and press the crimping protrusions 21 to the outside. The connector 20 is also formed with a fixing groove 26 is inserted into the side of the push rod is fixed to the side is inserted into the side fixed.

5A to 5C are front, plan and side views showing the coupling structure of the apparatus, and FIG. 6 is a sectional view showing the coupling structure of the apparatus. Now, the method of assembling the apparatus will be described in detail with reference to these drawings.

The pressing projections 21 of the connector 20 enter the hollow 12 at the end of the horizontal bar 10. Then, the horizontal rod 10 also receives a portion of the end portion into the annular insertion portion 22 formed on the outside of the pressing projections 21 of the connector 20. Then, the fastening bolt 40 is entered into the fastening hole 25 of the connector 20 to be fastened. Then, the fastening bolt 40 is fastened and the compression protrusions 21 are opened to the outside to squeeze the inside of the horizontal bar 10. Of course, when the pressing protrusions 21 are inserted into the horizontal bar 10, the inner pressing protrusions 11 of the horizontal bar 10 press the outer circumferential surfaces of the pressing protrusions 21 with a certain elasticity to double the holding force. Then, the side 30 of the push rod is inserted into and fixed below the connector 20. When the locking tool 50 is pushed toward the insertion part 22 of the connector 20 in the coupled state in the state of being coupled in this way, the insertion part 22 is a through hole 55 of the locking device 50. Entering into the engaging projection 23 of the elastic protruding outer peripheral surface is entered into the engaging groove 56 of the lock 50 is caught. Due to this, the locking device 50 is coupled to the connector 20 and fixed, when the locking tool 50 is pushed into the inside with elasticity by pressing the locking projection 23 located in the locking groove (56). Moving the lock 50 to the opposite side allows removal from the connector 20. A method of using the locking tool will be described with reference to FIG. 7.

7 is a state diagram illustrating a use case of the locking device in the present apparatus. Referring to FIG. 5A to FIG. 5C, the method of using the locking device will be described. The lock 50 is connected to keep the carts together when not using the cart to facilitate storage and management, as well as to charge the use of the cart.

When not in use, the locking piece connected to the locking groove (53) of the lock (50) mounted on the pusher of the cart (1) by the hook (51a) to the locking hole (50a) of the other neighboring cart ( Insert and fix 52a). That is, when the locking piece 52a enters into the locking groove 53, the locking piece 52a is caught and fixed in the locking groove 53. In this state, the cart 1 is connected to another neighboring cart 2, and in order to use the cart 1, the coin is pushed into the release plate 54 of the lock 50 mounted on the push rod. The release plate 54 is pushed in and the locking piece 52a of the other cart 2 is released from the lock groove 53 of the lock 50 so that the cart 1 can be detached from the other cart 2. . In this manner, the pushing rod of the cart (1) in the separated state to drive and load the goods in the cart (1).

As described above, the cart assembly device of the present invention has the advantage that the assembly structure is smooth and the appearance of the cart smoothly improved by improving the coupling structure of the pusher portion that the user grips and pushes the cart. have. In particular, since no welding is required, post-treatment such as trimming of the working part is not necessary, so that the work can be quickly performed, and the finishing part also has a beautiful advantage as an assembly structure. Moreover, if one side of the push rod is broken, it is necessary to disassemble the connector and replace only the broken part, thereby making repairs easy and of course having economic advantages. In addition, the assembly is firm, and the product has a feature that can extend the life by being robust.

Claims (5)

In the cart used for carrying goods, A sidewall protruding upwardly to both sides of the cart is inserted into and fixed to the lower side, and a connector having a plurality of elastic crimping protrusions arranged in a circular shape on one side and a fastening hole communicating to the center thereof on the other side thereof; A hollow horizontal bar into which the compression protrusions enter; And And a fastening bolt fastened to the fastening hole of the connector to fix the pressing protrusions inserted into the horizontal bar to the outside. According to claim 1, wherein the end of the horizontal bar is assembled to the cart pusher assembly assembly device further comprises an inner pressing projections circumferentially circumferentially circumferentially and elastically recessed and the corresponding outer peripheral surface of the pressing projections inserted . The cart pusher according to claim 1, wherein the crimping protrusions are arranged in a circular shape such that four are formed to have a proper elasticity at both sides when the fastening bolt enters, and two adjacent pairs are connected to each other by a connecting part so that two pairs are symmetrical. Assembly and coupling device. The lock piece of claim 1, wherein the lock piece is fixed to the outside of the horizontal bar and connected to a ring to be inserted into and fixed to another neighboring lock groove, the lock groove to which the other lock piece is to be inserted, and the coin is pressed and inserted from the lock groove. Assembling and assembling device cart cart characterized in that it further comprises a lock having a release plate for releasing the locking piece. According to claim 4, The connector is provided with a locking projection of the elastic, while the engaging portion of the cart pusher, characterized in that the locking groove which is fixed to the locking projection is formed in a predetermined portion of the locking tool corresponding to the locking projection. .