WO2015126086A1

WO2015126086A1 - Compact cart

Info

Publication number: WO2015126086A1
Application number: PCT/KR2015/001313
Authority: WO
Inventors: 여신동
Original assignee: 여신동
Priority date: 2014-02-20
Filing date: 2015-02-10
Publication date: 2015-08-27
Also published as: KR101452757B1

Abstract

The present invention relates to a compact cart, and, in order to minimise the cart height so as to allow easy storage and stowing in a vehicle for transporting freight or in a store, and to economise on production costs by minimising the assembly structure and configuring same in straightforward fashion, the cart comprises: a carrier on which the freight is loaded; a handrail fitted so as to be able to be rotated and fixed on the carrier; casters of a fixed type and casters of a rotating type fitted in mounting recesses formed on the underside of the carrier, in such a way that parts thereof are taken in; and a pedal-type brake which is internally fitted in such a way as not to project outside a fitting recess formed to the rear of the carrier, and, in the present invention: the casters of the fixed type are axially linked to brackets integrally injection moulded on both sides of the mounting recesses, while the casters of the rotating type are fixedly fitted to plates fitted in the mounting recesses; and, formed on both sides of the pedal-type brake, there are inclined parts that are inclined inwardly downwards on the inside thereof, and the ends of respective actuating bars are positioned in close contact in the positions of the bottoms of the inclined parts, while the other ends of the actuating bars are positioned so as to face latching recesses formed on the insides of the casters of the fixed type.

Description

Compact cart

The present invention relates to a compact cart that is easy to store and load in a freight transport vehicle or warehouse, and that the assembly structure is simple to enable the use, storage and manufacturing cost of the cart.

A transport cart used for transporting goods at a post office, a warehouse, etc., is generally provided with a carrier for carrying goods in the lower part of the cart body, and a caster for movement is rotatably installed in the lower part of the front and rear of the carrier, respectively. Posts and handles are installed at the rear of the cart user, while pushing the handle while rotating the front and rear casters to transport the goods within a certain section.

However, in recent years, courier transportation has become popular, and in an environment in which warehouses are enlarged, a necessity of not only using carts within a predetermined section but also carrying carts in transportation vehicles or storing large quantities in warehouse facilities is increasing.

However, in the case of DANDY series carts commonly used in Japan (see FIGS. 10 and 11) or Korean Utility Model Model No. 20-0384438, casters are spaced from the carrier and the carts are large in height and size so that they can be loaded in post office vehicles or courier vehicles. Difficult to load, there is a problem that it is difficult to store a large number of carts within a predetermined space. The Japanese Unexamined Patent Publication No. 2011-16407 proposes a structure in which a pedal, a mechanism for braking a caster, can be easily operated with a foot, and the pedal does not interfere with obstacles while moving. However, a brake pedal and a brake release pedal are provided separately. It is a complex structure with the number of parts to be tied up to 16 pieces, and the assembly of the product requires a great cost and effort in the process.

The inventors pay attention to the problem that conventional carts are limited in cart transportation and loading due to their height or size, and the structure of the cart is complicated. Therefore, the cart can be used and stored by making the assembly structure of the cart as simple as possible and achieving compactness. And to develop the present invention to be able to reduce the manufacturing cost.

* Patent Literature *

(Patent Document 1) Korean Utility Model Registration No. 20-0384438

(Patent Document 2) Japanese Patent Application Laid-Open No. 2011-16407

* Non Patent Literature *

(Non-Patent Document 1) DANDY Series Cart

The present invention minimizes the height of the cart and simplifies the assembly structure to realize compactness, and greatly improves the rack structure for safer use of the compacted cart, and makes it easier to transport and store large quantities of carts. The purpose is to provide a cart.

In order to achieve the above object, the present invention, the load carrier is loaded; A handle bar installed to be rotatable and fixed to the carrier; Fixed casters and rotatable casters are installed so that a part is inserted into the mounting groove formed in the lower side of the carrier; A pedal-type brake which is installed inwardly so as not to protrude outward from an installation groove formed at the rear of the carrier; wherein the fixed caster is axially connected to the bracket integrally injection-molded on both sides of the mounting groove. Typical casters are fixedly installed on the plate is installed in the mounting groove, the pedal-type brake is formed on both sides inclined downward inwardly inside, one end of the operation bar is in close contact with the lower position of each inclined portion It provides a compact cart, characterized in that the other end of the operation bar is positioned to face the engaging groove formed inside the fixed caster.

In addition, to ensure the stability of the use of the cart provides a compact cart characterized in that it comprises a roller at the corner of the carrier.

In addition, it provides a compact cart, characterized in that it is made to be in close contact with the carrier when folding the handle, including a fixing means on the carrier to facilitate the loading of a large number of carts.

According to the present invention, the height and size of the cart are minimized. In the case of the height, a carrier having a height of about 220 mm, which is installed based on a caster having a minimum diameter of 125 mm, can be reduced to about 150 mm. It can be easily loaded even in the cart loading box. In addition, it is very easy to store and load a large number of carts in a small space, it can be used safely and useful in industries that require a large number of carts, such as post offices, courier companies, large logistics warehouse.

In addition, the manufacturing cost is greatly reduced by minimizing the number of parts in the existing complex caster assembly process such as caster assembly or brake pedal, thereby greatly reducing the burden of purchasing a large number of carts.

1 is a perspective view of a compact cart according to the present invention

Figure 2 is a perspective view of the folded state of Figure 1

3 is a side view of FIG. 2

4 is a bottom perspective view of FIG. 1

5 is a perspective view of the loading state between the compact cart according to the present invention

Figure 6 is a side cross-sectional view of the loading state between the compact cart according to the present invention

7 to 9 are side cross-sectional views showing the operation configuration of the brake according to the present invention.

10 and 11 are photographs of the DANDY series cart mentioned in the prior art.

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

Compact cart (A) according to the present invention consists of a carrier 10, a handle 20, a fixed caster 30 and a rotatable caster (40) which is partly installed in the carrier (10).

The carrier 10 is in the form of a plate on which cargo is loaded as shown in FIG. The upper handle 20 of the carrier 10 is vertically fixed on the carrier 10 during movement, but when stored, it is folded on the carrier 10 so as to facilitate the loading of the cart A on the upper surface of the carrier 10. Close contact.

When the cart is provided with an individual cart loading box, the cart may be placed in each stacking box. However, when a plurality of carts A are loaded as shown in FIGS. 3 and 5, the carrier 20 is folded when the handle 20 is folded. In order to be in close contact with the upper surface of 10), both ends of the handle 20 is formed on the bracket 25 is axially coupled so as not to deviate from the height in the folded state of the handle 20, on the bracket 25 Using a coupling means such as pin 26 to the handle 20 is configured to be coupled to the shaft. In addition, the casters (30, 40) to be seated on the upper surface of the carrier (10). In this case, as shown in FIG. 6, when the fixing grooves 19 on which the

casters

30 and 40 of the other carts are seated and supported on the upper surface of the carrier 10 may increase the stacking stability and minimize the height of the stacked carts.

In general, as shown in the comparison diagram below in FIG. 3, the conventional caster is formed as an integrated module and is fixedly installed on the lower side of the carrier 10, and the caster is completely exposed based on the ground so that the height or size of the carrier 10 is large. Structure. However, the present invention is the fixed caster 30 of the lower side of the carrier 10 is installed on the fixed handle 20, the rotary caster 40 is on the opposite side of the fixed caster 30 so as to easily change the direction It is provided with a pair, it is characterized in that a part of the casters (30, 40) is installed to be pulled in as much as possible in the lower side of the carrier 10 in order to minimize the height and size of the cart. To this end, as shown in FIG. 4, the

casters

30 and 40 are installed to be partially inserted into the

mounting grooves

36 and 46 formed at the lower side of the carrier 10, and the depth of the

mounting grooves

36 and 46 is equal to that of the

casters

30 and 40. (30,40) It is desirable to be 1/2 to 1/3 of the diameter.

In particular, as shown in Figures 3 and 4, the bracket 32 is injection molded integrally on both sides of the mounting groove 36 so that the fixed caster 30, which is partly inserted into the mounting groove 36 can be coupled. A hole 33 is formed in the center, and the shaft pin 39 of the fixed caster 30 and the hole 33 of the bracket 32 are simply fitted to each other to be axially connected to each other. Due to such a simple fitting configuration, the present invention can omit a separate fastening means such as pieces, bolts, etc. fastened on the carrier 10 for fixing the existing casters, and thus does not require a separate assembly process, thereby reducing manufacturing costs. You can save.

In addition, the height or size of the carrier is largely formed because it is fixed by fastening means such as bolts on the lower surface of the carrier, as in the comparison drawing of FIG. 3 below, but the present invention is on the carrier 10 in the rotary caster 40. Since the plate 79 for fixing to the installation groove 46 is formed in the mounting groove 46 formed in the carrier 10, it is possible to lower the height of the carrier (10). In one embodiment, the carrier of about 220 mm height, which is installed on the basis of the caster having a diameter of 125 mm, may be reduced to about 150 mm.

On the other hand, as the structure of the cart of the present invention is simple and compact, the brake 50 is further provided to stop the fixed caster 30 in order to further ensure the braking and stability of the caster when using the cart. The brake 50 is installed as a one-touch pedal type, as shown in Figures 1 and 2, the brake to be installed in the installation groove 16 formed in the rear of the carrier 10 for the implementation of the compact cart of the present invention It is preferable that 50 is formed so that it does not protrude to the outer side of the installation groove 16, At this time, it is preferable to form the upper surface of the brake 50 on the same line as the upper surface of the bearing 10, or lower. In addition, the brake 50 forms an inclined portion 52 therein, and forms a plurality of locking grooves 37 on each inner side surface of the fixed caster 30, and the inclined portion 52 and the locking groove 37. It is configured with an operating bar (60) connecting.

The operation structure of the brake 50 will be described in detail with reference to FIGS. 7 to 9, and the inside of the pedal-type brake 50 is inclined upward and downward, that is, inclined downward inward as shown in FIG. Inclined portions 52 are formed on both sides, one end portion 61 of the operating bar 60 is in close contact with the lower position of the respective inclined portion 52, at this time the other end 62 of the operating bar 60 ) Is positioned to face the locking groove 37 formed inside the fixed caster 30 so as not to be inserted apart. When the user presses the pedal type brake 50 in the state (a) of FIG. 7, the brake 50 is lowered to the lower position of the inclined portion 52 which is inclined downwardly as shown in FIG. 7 (b). One end 61 of the operation bar 60 in close contact is pushed outward by the inclined portion 52 so that the other end 62 of the operation bar 60 is inserted into the locking groove 37 while being fixed to the caster 30. ) Will stop.

In the brake 50 of FIG. 8A, the upper end 81 is fixed, and the lower end 82 is provided with a return spring 80 rotatably connected to the upper end 81. In addition, the locking member 90 provided below the return spring 80 has an entry portion 91 inclined to one side, and a locking portion 92 is formed at the lower side thereof, and is opposite to the entry portion 91. The return portion 93 is formed. Therefore, in the state where the return spring 80 is positioned in the state of FIG. 8A, when the brake 50 is lowered and moved, the lower end 82 of the return spring 80 is bent and moved along the entry part 91. After the bottom dead center is supported by the engaging portion 92 formed in the lower portion of the locking member 90 by the elastic force of the return spring (80). On the contrary, when the brake 50 is depressed once more when the brake 50 is released, the lower end 82 of the return spring 80 inside the brake 50 moves to the lower side as shown in FIG. 8B. It returns to the initial state, moving to the return part 93 side by the elastic force of (80).

The operation process is as shown in the operation flowchart of FIG.

On the other hand, in the case where the space of the cart A is narrow or there is a corner, the cart is difficult to move or even collides with a wall, such that accidents such as falling loads are likely to occur. 1 and 4, the present invention further includes a roller 17 at an edge of the carrier 10 to easily change the direction of the cart or to relieve an impact when it hits a wall or an edge. At this time, the roller 17 is provided to rotate in a horizontal direction in any one or more of the corners of the carrier 10, it is preferable to protrude a portion.

* Description of the sign *

10: carrier 17: roller

19: fixing groove 20: handle

30: fixed caster 32: bracket

37: locking groove 40: rotary caster

50: brake 52: inclined portion

60: operating bar 80: return spring

Claims

A carrier 10 on which cargo is loaded; A handle 20 which is installed to be rotatable and fixed to the carrier 10; A fixed caster 30 and a rotatable caster 40 installed to be partially inserted into mounting grooves 36 and 46 formed at the lower side of the carrier 10; And a pedal-type brake 50 which is installed inward so as not to protrude outward from the installation groove 16 formed at the rear of the carrier 10.

The fixed caster 30 is axially connected to the bracket 32 injection-molded integrally on both sides of the mounting groove 36, the rotary caster 40 to the plate 79 is installed in the mounting groove 46 It is fixedly installed and

The pedal-type brake 50 has inclined portions 52 which are inclined downwardly inwardly on both sides thereof, and one end 61 of the operation bar 60 is in close contact with a lower position of each inclined portion 52. Is positioned, the other end 62 of the operating bar 60 is a compact cart, characterized in that it is positioned to face the engaging groove 37 formed on the inside of the fixed caster (30).
The method of claim 1,

The handle 20 is a compact cart, characterized in that coupled to the shaft to be in close contact with the carrier (10) when folded.
The method of claim 1,

Compact cart, characterized in that provided with a roller (17) protruding in any one or more of the corner portion of the carrier (10).
The method of claim 1,

The fixed caster 30 and the fixed caster 30 and the rotary caster 40 of the other cart to be loaded on the upper surface of the carrier 10 is further characterized in that it further comprises a fixing groove 19 to minimize the height of the cart loaded Compact cart.