KR20090082839A - Multi Cart - Google Patents

Abstract

A multipurpose cart is provided to secure convenience of movement in use and the efficient use of space in a shop by controlling the size of a cart according to the purchase quantity of products. A multipurpose cart is formed by dividing one multipurpose cart structure into three structures which are an outer structure, an intermediate structure and an inner structure, forming an outer insertion tube vertically in an outer upper frame(61) formed on the top of the outer structure, an intermediate side net insertion groove along the bottom of an insertion tube, inserting an intermediate insertion rod and an intermediate upper frame to the outer insertion tube and approaching an intermediate side net along the intermediate side net insertion groove simultaneously and approaching an intermediate wheel and an intermediate small wheel to an outer lower plate, thereby approaching the entire intermediate structure to the inside of the outer structure easily to be contracted easily.

Description

Multi-purpose cart {Multi Cart}

The present invention is divided into three structures, such as the outer structure, the intermediate structure, the inner structure, and the integral cart is completed due to the insertion function of the insertion tube and the insertion rod. Also, after any cart is completed, outside. middle. There is a technical problem to enable the enlargement and reduction of the cart by using the efficient structure of the internal upper frame.

Existing background art has a disadvantage that it is not possible to reduce the volume of the shopping cart due to the lack of the reduction and enlargement function in the shopping cart as indicated in the application number 10-1999-0005224.

The present invention has the technical problem to enable the shopping cart enlargement and reduction function using the efficient structure of the insertion tube and the insertion rod formed on the outer, middle, inner upper frame. Conventional shopping cart to be solved by the present invention has a disadvantage that occupies a lot of space during the shopping in the shopping store and the inconvenience of moving because it is fixed without the expansion and contraction function, there is inconvenience in storage at home There is a disadvantage in that it is inconvenient to mount for a vehicle.

The present invention is outside. middle. There is a technical problem to enable the enlargement and reduction of the cart by using the efficient structure of the insertion tube, the insertion rod, the locking hole, the locking rod formed on the inner upper frame.

The present invention utilizes the above-described efficient structure to insert the entire intermediate structure inside the outer structure, and insert the entire inner structure inside the intermediate structure to achieve a reduction function of the cart. In addition, the inner structure is removed from the inside of the entire intermediate structure, and the intermediate structure from the inside of the outer structure, there is a feature to achieve the expansion function of the cart.

The present invention is outside. middle. In order to provide a multi-purpose cart that can be enlarged and reduced by using an efficient structure formed on the inner upper frame, the size of the cart can be adjusted according to the quantity of goods purchased at general merchandise stores. It is possible to secure the efficient use of, and also, when set to the maximum reduction function, to minimize the space occupied by the multi-purpose cart of the present invention, can be used in the home for the separation of garbage, transportation of other objects, can be mounted in the vehicle It provides a multi-purpose cart that is convenient for courier delivery, product transportation, and general package transportation.

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

1 is a basic perspective view of the multipurpose cart of the present invention, and FIG. 2 is an exploded perspective view of the multipurpose cart of the present invention.

The present invention according to the drawings is largely composed of an outer structure 11, an intermediate structure 12 and the inner structure (13). In addition, the outer structure 11 has an outer upper frame 61 at the top, an outer lower plate 51 at the bottom, and an outer side mesh 91 connecting the outer upper frame 61 and the outer lower plate 51 up and down. And an external structure 94 to form an external structure 11.

The intermediate structure 12 is an intermediate side mesh 92 that connects the intermediate upper frame 62 at the top, the intermediate lower plate 52 at the bottom, and the intermediate upper frame 62 and the intermediate lower plate 52 up and down. The structure 12 is formed.

The inner structure 13 has an inner upper frame 63 at the upper end, an inner lower plate 53 at the lower end, and an inner side mesh 93 connecting the upper upper frame 63 and the lower inner plate 53 up and down. And the inner rear mesh 95 to form the inner structure 13.

As shown in the exploded perspective view of FIG. 2, when the intermediate insertion rod 87 is inserted into the external insertion hole 64 and the internal insertion rod 88 is inserted into the intermediate insertion hole 66, the external structure 11, the intermediate structure 12, The internal structure 13 is formed as one body as shown in the basic perspective view of FIG.

The outer upper frame 61 has an outer insertion hole 64 for connecting the outer structure 11 and the intermediate structure 12 to the inner upper frame 61, as shown in the inner perspective of the insertion tube of FIG. It is perforated in the longitudinal direction, and forms the inside of the intermediate side mesh insertion groove 68 in the longitudinal direction so that the intermediate side network 92 can enter and exit.

No. 1 catching ball 71, No. 2 catching ball 72, No. 3 catching ball 73 is perforated on the upper outer frame 61 and the outer insert frame 64 at the bottom of the outer upper frame 61. An intermediate side mesh insertion groove 68 is formed at the end.

The intermediate upper frame 62 has an intermediate insertion hole 66 for connecting the intermediate structure 12 and the internal structure 13 to the inside of the intermediate upper frame 62, as shown in the internal perspective of the insertion tube of FIG. It is perforated in the longitudinal direction, the inner side mesh insertion groove 69 in the longitudinal direction is formed so that the inner side network 93 can enter and exit. No. 4 catching ball 74, No. 5 catching ball 75 is perforated at the upper end of the middle upper frame 62, No. 1 catching rod 76 is formed, the middle insertion opening at the bottom of the middle upper frame 62 An inner side mesh insertion groove 69 is formed along the end 66 at the end.

 2 and 5, the intermediate insertion hole inclined surface 67 is formed at the upper edge of the circular border of the intermediate insertion hole 66. As shown in FIG. As shown in FIG. 2, the inner insertion rod 88 connecting the intermediate structure 12 and the inner structure 13 to the inner upper frame 63 is positioned at the frontmost side, and behind the inner insertion rod 88 is 2. Hogging rod 77 is located.

Each locking rod is composed of a locking rod set 81 coupled to the locking rods 76 and 77 and the locking rod upper and lower body 83, as shown in Figure 6, the locking rod set 81 is the upper upper Frame 63 is installed by inserting into the locking rod set groove 82 vertically dug from the upper center portion.

As shown in FIG. 2, four outer wheels 141 are installed at the bottom of the outer lower plate 51, and two intermediate wheel support grooves 151 and one inner wheel support groove are provided at the rear lower plate 113. 152 is formed.

The middle bottom plate 121 is mounted on the outer bottom plate 112, and the middle bottom plate 52 on the middle bottom plate 147 is interposed in order to secure a smooth movement on the outer bottom plate 51. Two each of the one in the side 122 is installed, and two intermediate wheels 142 are provided below the middle lower plate 62.

As a result of the intermediate lower plate 52 climbing on the outer lower plate 51, the intermediate wheel support 145 has an outer lower plate rear surface 113 than the external wheel support 144 to maintain the horizontal level of the intermediate lower plate 52. It is installed as high as the thickness.

The inner bottom plate 53 rises above the middle bottom plate 52, and the inner bottom plate 53 on the middle lower plate 52 has an inner small wheel 148 to secure a smooth movement on the middle bottom plate 52. Each one is installed on the side 132 and the two are installed, and one inner wheel 143 is installed below the inner bottom plate 53.

 As a result of the inner lower end plate 53 climbing the middle lower end plate 52, the inner wheel support 146 is lower than the middle wheel support 145 to maintain the horizontal level of the inner lower end plate 53. It is installed as high as the thickness.

Hereinafter, the entry and exit structure and operation of the present invention will be described by the accompanying drawings.

As shown in FIGS. 1 and 2, the outer structure 11, the intermediate structure 12, and the inner structure 13 of the present invention have an intermediate insertion rod 87 at an external insertion opening 64 at an upper end thereof, and an intermediate insertion opening 66. The inner insertion rod 88 enters each, and at the bottom, the lower middle plate 52 is divided into the outer lower plate 51, and the inner lower plate 53 enters the middle lower plate 52. The structure is integrally formed.

7 and 8 will be described by dividing the process into three parts, the upper end 21, the side parts 41, 42, 43, and the lower end 22 of the multi-purpose cart of the present invention.

The upper end portion 21 is composed of an outer upper frame 61, an intermediate upper frame 62, an inner upper frame 63, etc., as shown in FIG. In order to allow the entry of the first and second locking rods 76 and 77 after the inner insertion rod 88 enters the intermediate insertion hole 66, the outer insertion hole 64 and the middle insertion hole 66 have an upper center. As shown in Figs. 2, 4, 5, and 6, the intermediate intermediate insertion port inclined planes 65 and 67 are shown in Figs. Inclined at a 45 degree downward angle, and as shown in Fig. 6, the locking rods 76 and 77 are inclined at a 45 degree downward angle, so that the outer and intermediate insertion slopes ( 65,67) and 1.2 locking bar inclined surface (85), due to the pressure applied from the inner rear portion 32 in the event of a collision, the first and second locking rod inclined surface (85) below the outer, intermediate insertion slope (65,67) At the same time, the sliding rod Shanghai fuselage 83 of the flexible material is lowered by the pressure transmitted to the upper and lower locking rods 76 and 77 at the time of the sliding. It provides a structure to enter the insertion tube (78,79).

In addition, the first and second locking rods 76 and 77 enter the outer and middle insertion pipes 78 and 79, and then, once additional pressure is applied from the inner rear portion 32, the first and second locking rods 76 and 77 are applied. The No. 1 catching ball 71, the No. 2 catching bar 77 protrudes into the No. 4 fastening ball 74, the protruding No. 1, No. 2 catching bars (76, 77) as shown in Figure 6 Similarly, at the moment when the engaging rod vertical surface 86 is in contact with the jaws of Nos. 1 and 4, the middle and inner insertion rods 87 and 88 serve to stop the entry and exit. Likewise, the basic form of the multipurpose cart of the present invention is completed.

In order to reduce from the basic state of FIG. 1 to the middle collapsed state of FIG. 7, as shown in FIGS. 4, 5, and 6, additional pressure is applied to the inner rear part 32 and the first locking hole 71 When pressing the protruding No. 1 catching rod 76 by hand, the catching rod vertical surface 86, which was hanging on the No. 1 catching ball 71, is lowered, and the catching rod inclined surface 85 is No. 1 catching ball 71. At the moment it encounters, No. 1 catching rod 76 is slid again along the external insertion pipe 78 by the additional pressure exerted by the inner rear part 32, and No. 1 catching rod 76 is no. 2 catching ball ( 72, and as shown in Fig. 7, the intermediate reduction type of the multipurpose cart of the present invention is completed.

In order to reduce from the intermediate reduction type of FIG. 7 to the maximum reduction state of FIG. 8, the first and second locking rods 76 and 77 are pressed, and at the same time, the inner rear portion 32 and the outer front portion 31 are pressed. When applying pressure No. 1 catching rod 76 is projected to No. 3 catching ball (73) and No. 2 catching bar (77) is projected to No. 1 catching ball (76) through No. 2 catching ball (72) As shown in FIG. 8, the maximum reduction type of the multipurpose cart of the present invention is completed. Moreover, what is necessary is just to carry out operation in the reverse direction at the time of reducing at the time of enlarging the utility cart of this invention.

The side portion is divided into an outer side portion 41, an intermediate side portion 42, an inner side portion 43, and the like. These side portions are provided when the intermediate structure 12 enters into the outer structure 11 and the inner structure 13 is an intermediate structure. (12) In order to ensure easy movement without colliding with each other when going in and out, the outer side portion 41 is composed of an outer side mesh 91, and the outer side mesh 91 is in a vertical direction. The outer upper frame 61 is installed on the outer wall and the outer lower plate side surface 112.

The intermediate side portion 42 is composed of an intermediate side network 92, and the intermediate side network upper end 92 is installed in the lower center of the intermediate upper frame 62 in the water-removing direction, and the lower side of the intermediate side network 92 is intermediate The lower plate 52 is installed so as to match the lower middle plate side surface 122.

Since the center between the intermediate side mesh insertion groove 68 and the internal side mesh 93 at the bottom of the intermediate frame 62 is located on the same line as the intermediate side network insertion groove 68, as a result, the bottom of the intermediate upper frame 62 The intermediate side portion 42 provided at the center between the intermediate side mesh insertion groove 68 and the internal side network 93 facilitates the intermediate side network insertion groove 68 simultaneously with the intermediate insertion rod 87 for entering the external insertion port. You can enter.

The inner side portion 43 is composed of an inner side network 93, the upper side of the inner side network 93 is installed in the lower center of the inner upper frame 63 in the vertical direction, the lower side of the inner side network 93 inside The lower plate 53 is installed to coincide with the inner lower plate side surface 64. Since the lower center of the inner upper frame 63 is located on the same line as the inner shaft netting groove 68, the inner side portion 43 installed at the lower center of the inner upper frame 63 enters the intermediate insertion hole 66. At the same time with the insertion rod 88, the inner side mesh insertion groove 69 can be easily entered.

1 and 2, the lower end is divided into an outer lower end plate 51, an intermediate lower end plate 52, an inner lower end plate 53, and four outer wheels below the outer lower end plate 51. Is installed (141), as shown in Figure 2, 8 at the rear center of the outer lower plate 51, the outer lower plate rear surface 113 is the inner wheel support 146 and the middle when the multi-purpose cart in the present invention maximum reduction Two intermediate wheel support grooves 151 and one inner wheel support groove 152 are provided on the surface collided to prevent collision with the wheel support 145.

Two intermediate wheels 142 are installed below the lower middle plate 52, and two intermediate small wheels 147 are installed on the intermediate lower plate side surface 122. The middle wheel 142 serves to facilitate the movement of the internal structure 13 in contact with the ground and between the front and rear of the intermediate lower plate 52 generated by the intermediate lower plate 52 rising onto the outer lower plate 51. In order to overcome the height difference, the height of the middle wheel support 145 was installed higher than the outer wheel support 144 so that the middle lower plate could be horizontal.

One inner wheel 143 is installed below the lower inner plate 53, and two inner compact wheels 148 are installed on the inner lower plate side surface 132. The inner wheel 143 serves to facilitate the movement of the inner structure 13 in contact with the ground, and the inner lower end plate 53 generated when the inner lower end plate 53 rises over the middle lower end plate 52. In order to overcome the height difference between the rear height, the height of the inner wheel support 146 was higher than that of the intermediate wheel support 145 so that the inner lower end plate 53 could be horizontal.

As shown in FIG. 7, the inner small wheel 148 is installed at both sides of the intermediate inner lower plate side surfaces 122 and 132 so that the inner lower plate 53 is on the middle lower plate 52 and the middle lower plate 52 is external. Sliding on the bottom plate 51 provides for easy movement.

1 is a basic perspective view of the present invention utility cart

Figure 2 is separated from the external structure, intermediate structure, internal structure of the present invention multi-purpose cart

  Isolated perspective view

Figure 3 is a side perspective view of the outer, middle, inner upper frame of the present invention multi-purpose cart

Figure 4 is a perspective view showing the inside of the insertion tube of the outer upper frame of the multi-purpose cart of the present invention

Figure 5 is a perspective view showing the inside of the insertion tube of the upper middle frame of the present invention dayodo cart

Figure 6 is a perspective view protruding the locking rod set of the present invention utility cart from the locking rod set groove

Figure 7 is an intermediate reduction perspective view of the multi-purpose cart of the present invention

8 is a view of the reference numerals for the principal part of the maximum reduction perspective view of the multi-purpose cart of the present invention

 11. External structure 12. Intermediate structure 13. Internal structure

 21. Upper part 22. Lower part

 31. Outer front part 32. Inner rear part

 41. Outer side 42. Middle side 43. Inner side

 51.Outer lower plate 52.Middle lower plate 53.Inner lower plate

 61. Outside top frame 62. Middle top frame 63. Inside top frame

 64. External insertion hole 65. External insertion hole slope 66. Intermediate insertion hole

 67. Intermediate insertion hole slope 68. Intermediate side insertion groove 69. Inner side insertion groove

 71.No. 1 ball 72. No. 2 ball 73. No. 3 ball

 74. No. 4 jam ball 75. No. 5 jam ball 76. No. 1 jam ball

 77. Locking rod 2 78. External insertion pipe 79. Intermediate insertion pipe

 81. Hanging rod set 82. Hanging rod set groove 83. Hanging rod upper and lower body

 84. Hanging rod moving body operating space 85. Hanging bar slope

 86.Hanging rod vertical side 87.Intermediate insertion rod 88.Inner insertion rod

 91. External side networks 92. Intermediate side networks 93. Internal side networks

 94. Outside front view 95. Inside back view

111. Outer bottom plate front 112. Outer bottom plate side 113. Outer bottom plate rear

121. Front of lower middle plate 122. Side of lower middle plate 123. Rear of middle lower plate

131. Inner lower plate front 132.Inner lower plate side 133. Inner lower plate rear

141.Outer Wheel 142. Middle Wheel 143. Inner Wheel

144. Outer Wheel Support 145. Middle Wheel Support 146. Inner Wheel Support

147. Medium wheels 148. Internal wheels

151. Middle Wheel Support Groove 152. Internal Wheel Support Groove

161.Handle

Claims (3)

       In the multi-purpose cart, one multi-purpose cart structure is divided into three structures such as an external structure, an intermediate structure, and an internal structure, and then an external insertion tube is formed at the end of the external upper frame formed on the external structure, and the bottom of the insertion tube is Therefore, after forming the intermediate side network insertion groove, the intermediate insertion rod is inserted inside the external insertion pipe, and the intermediate side network enters along the intermediate side network insertion groove at the same time, and the intermediate wheel and the small wheel on the external bottom plate. As a result of entering, all the intermediate structure easily enters into the outer structure, the multi-purpose cart, characterized in that to enable the intermediate reduction function.        Intermediate insertion tube is terminated inside the middle upper frame formed on the upper part of the intermediate structure. After forming the inner side network insertion groove along the bottom of the insertion tube and inside the intermediate insertion tube Insert the inner upper frame at the same time with the inner insertion rod and follow the inner side insertion groove at the same time. As a result of entering the side network and the inside wheel and the inside small wheel on the middle lower plate, All of the internal structure can easily enter the intermediate structure to enable maximum reduction Multipurpose cart characterized in that.        Versatile, characterized in that the intermediate enlargement function when using the function of claim 2 as a reverse function cart. Basic type characterized by the maximum magnification when using the function of claim 1 as a reverse function Multi-purpose cart.

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