KR102536239B1 - Pallet with improved strength - Google Patents

Abstract

In the present invention, the upper frame and the lower frame are coupled to each other using a pillar member, and a plurality of pillar members are formed between the upper frame and the lower frame to improve the overall strength of the upper frame and the lower frame, It relates to a pallet with improved strength to improve storage, transportation and work efficiency by reducing the weight of the lower frame, and a pillar composed of a body part, a first extension part, and a second extension part between the upper frame and the lower frame. Arrange a plurality of members spaced apart from each other along the longitudinal direction, but combine the pillar members between the upper frame and the lower frame through welding to improve the overall durability of the upper and lower frame constituting the pallet. In addition, the weight is reduced through the shape having the first and second bent parts and the first and second extension parts of the upper frame, the lower frame, and the pillar member, thereby improving the strength to make the pallet including the weight lighter. It's about the pallet you ordered.

Description

Pallet with improved strength}

The present invention relates to a pallet with improved strength, and more particularly, an upper frame and a lower frame are coupled to each other using a pillar member, and a plurality of pillar members are formed between the upper frame and the lower frame to form an upper frame and a lower plate. It relates to a pallet with improved strength that can improve the overall strength of the frame and lighten the upper and lower frame to improve storage, transportation and work efficiency.

In general, pallets used in industrial sites are used as supporting materials for storage to prevent various loads from being scratched or damaged on the ground, and have a structure in which loads can be transported by forklifts in a loaded state.

These pallets are used made of various materials such as wood, synthetic resin, and metal, depending on the purpose.

On the other hand, in recent years, many steel frames and pallets including the steel frames have been developed to improve the strength of the pallet in comparison to the weight of the load when the load is loaded on the pallet, and the structure is also variable. is being used.

First, looking at the prior art,

"자 형상의 제1보강부재와, 상기 하판의 하부에 위치되도록 하여 내측으로 하판이 끼워지도록 설치되는 "

"자 형상의 제3보강부재와, 다수 개의 지지부재 중 양측 끝단부에 위치한 지지부재의 외측에 결합 고정되어 상기 지지부재의 외측부와 상,하부를 커버함으로써 상판의 지지력을 향상시키는 "ㄷ"자 형상의 제2보강부재를 포함하여 구성되되, 상기 상판과 하판은 양측 끝단부가 각각 제1,3보강부재의 양측 끝단부 외측으로 돌출되도록 제1,3보강부재의 길이보다 길게 형성되어 외부 충격 발생시 돌출된 상판과 하판의 양측 끝단부가 완충작용을 할 수 있도록 구성되고, 상기 지지부재는 양측 끝단부가 제2보강부재의 양측 끝단부 외측으로 돌출되도록 제2보강부재의 길이보다 길게 형성되어 외부 충격 발생시 돌출된 지지부재의 양측 끝단부가 완충작용을 할 수 있도록 구성되며, 상기 다수개의 상판과 하판 중 양측 가장자리에 위치한 상판 및 하판의 외측부에는 경사면이 형성되고, 상기 제1,3보강부재는 상판과 하판의 경사면에 대응되게 일측부가 경사지게 절곡 형성되며, 상기 제1,3보강부재의 서로 대응면에는 길이 방향으로 다수 개의 돌기가 각각 형성되고, 상기 제2보강부재의 상부와 하부에는 상기 다수 개의 돌기가 안착되는 안착홈이 폭 방향으로 형성되며, 상기 지지부재 중 중앙부에 위치하는 지지부재는 "Ⅰ"자 형상으로 형성된 제4보강부재의 양측부에 지지부재가 끼워지게 설치된 것을 특징으로 하는 스틸 가드 우드 파렛트에 관한 것이다.Registration No. 10-1598550 (Special) In a steel guard wood pallet composed of a plurality of upper plates, a plurality of support members supporting the lower part of the upper plate, and a plurality of lower plates installed to correspond to the upper plate at the lower part of the support member , "installed so that the top plate is fitted inside so as to be located at the bottom of the top plate"

"The first reinforcing member in the shape of a ruler and the lower plate installed to be positioned in the lower part of the lower plate so that the lower plate is fitted inside"

A third reinforcing member in the shape of a "c" and a "c" character improving the bearing capacity of the upper plate by being coupled and fixed to the outside of the support member located at both ends of the plurality of support members to cover the outer part, upper and lower parts of the support member. It is configured to include a second reinforcing member of the shape, but the upper and lower plates are formed longer than the length of the first and third reinforcing members so that both ends protrude outward from both ends of the first and third reinforcing members, respectively, so that when an external impact occurs Both ends of the protruding upper and lower plates are configured to act as a buffer, and the support member is formed longer than the length of the second reinforcing member so that both ends protrude outward from both ends of the second reinforcing member, so that when an external impact occurs Both ends of the protruding support member are configured to act as a buffer, and inclined surfaces are formed on the outer sides of the upper and lower plates located at both edges of the plurality of upper and lower plates, and the first and third reinforcing members are the upper and lower plates. One side is formed obliquely bent to correspond to the inclined surface of, a plurality of projections are formed in the longitudinal direction on the corresponding surfaces of the first and third reinforcing members, respectively, and the plurality of projections are formed on the upper and lower portions of the second reinforcing member. A seating groove to be seated is formed in the width direction, and the support member located in the central portion of the support member is installed to be fitted to both sides of the fourth reinforcing member formed in a "I" shape. Steel guard wood, characterized in that It's about the pallet.

Looking at the above conventional technology, it is mainly described that a plurality of support members provided at the bottom of the upper plate are provided with reinforcing members to improve the rigidity of the pallet, but the support members are solid in shape such as angular pipes. As it is composed of, the overall weight of the pallet inevitably increases, and there is a problem in that manufacturing cost increases and work efficiency is inevitably reduced.

The present invention has been made to solve the problems of the prior art, and a number of pillar members composed of a body part, a first extension part, and a second extension part are spaced apart from each other along the longitudinal direction between the upper frame and the lower frame. While arranging a dog, the pillar member is coupled between the upper frame and the lower frame through welding to improve the overall durability of the upper frame and lower frame constituting the pallet, as well as the upper frame, lower frame and As a technical task, the focus is on providing a pallet with improved strength that can lighten the weight through the shape having the first and second bent parts and the first and second extension parts of the column member, thereby reducing the weight of the pallet composed of them. it has been completed

Therefore, in the present invention, in the pallet, the first upper frame composed of the base portion 111 and the first bent portion 113 bent and extended downward from both ends of the base portion 111 ( 110), a base portion 121, and a first lower frame 120 composed of first bent portions 123 bent and extended upward from both ends of the base portion 121, respectively, and a body It consists of a first pillar member 130 composed of a portion 131 and a first extension portion 133 that is bent backward and extended from both ends of the body portion 131, respectively, and the first pillar A plurality of members 130 are disposed spaced apart from each other along the longitudinal direction between the first upper frame 110 and the first lower frame 120, and the first upper frame 110, the first pillar member (130) and the first lower frame 120 are mutually coupled to the top plate frame 100; A second upper frame 210 composed of a base portion 211 and first bent portions 213 bent downward from both ends of the base portion 111 to extend, and a base portion 221 And, a second lower frame 220 composed of first bent parts 223 bent upwards and extending from both ends of the base part 221, the body part 231, and the body part It is composed of a second pillar member 230 composed of a first extension part 233 that is bent backward from both ends of 231 and extends, and the second pillar member 230 extends from the second upper part A plurality of them are disposed spaced apart from each other along the longitudinal direction between the frame 210 and the second lower frame 220, and the second upper frame 210, the second pillar member 230 and the second lower frame ( 220) are mutually coupled to each other; and the upper frame 100 is parallel to each other and a plurality of them are spaced apart from each other, and the lower frame is placed under the upper frame 100. A plurality of 200 are spaced apart from each other along the longitudinal direction of the upper plate frame 100, and the lower plate frame 200 is coupled perpendicularly to the upper plate frame 100, but the first upper frame 110 , One or more concave portions 111a formed by interpolating from the upper side to the lower side along the longitudinal direction on one side of the upper portion of the base portion 111 but formed in a semicircular arc shape on the front cross section, and each of the first bent portions ( 113) It is configured to include a second bent portion 115 that is bent inwardly and extended from the end end, and the first lower frame 120 is formed along the longitudinal direction on one side of the lower portion of the base portion 121 One or more concave portions 121a formed by interpolation from the lower side to the upper side but formed in a semicircular arc shape on the front cross section, and the second bent portion formed extending by being bent inward from the end end of each of the first bent portions 123 125 is included, and the first pillar member 130 is formed in the upper and lower portions of the body portion 131 to correspond to the recessed portion 111a and the recessed portion 121a, respectively. Grooves 131a and a second extension part 135 bent inwardly from the end of each of the first extension parts 133 to extend, and the second upper frame 210 includes the base part 211 ) Includes a band insertion groove 211a formed along the longitudinal direction on one side of the upper part of the first bent part 213 and a second bent part 215 bent inwardly and extending from the end of each of the first bent parts 213 The second lower frame 220 includes a band insertion groove 221a formed along the longitudinal direction at one side of the lower part of the base part 221 and an end end of each of the first bent parts 223. It is configured to include a second bent portion 225 bent inwardly and extending from the second pillar member 230, the band insertion groove 211a and the upper and lower parts of the body portion 231 It is configured to include grooves 231a respectively formed to correspond to the band insertion grooves 221a, and second extensions 235 bent inwardly and extended from the ends of the respective first extensions 233. , The front part of the body part 131 corresponds to the groove part 131a corresponding to the recessed part 111a and the recessed part 121a, and is located on the same line, but is interpolated from the front side to the back side. Is formed, and one or a plurality of tendons 133a spaced apart from each other are formed on the side surface of the first extension part 133, and the first pillar member 130 is formed on the first upper frame 110 and A plurality of first pillar members 130 disposed at both ends of the first lower frame 120 are spaced apart from each other along the longitudinal direction, and are configured to face each other while facing each other, and the second pillar member Two second pillars 230 are spaced apart from each other along the longitudinal direction between the second upper frame 210 and the second lower frame 220 and face each other while forming a mutually opposite end at both ends. Each member 230 is constituted, and the technical feature is that a force part 231b is formed on the front part of the body part 231 of the second pillar member 230.

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According to the pallet with improved strength according to the present invention, the pillar member is coupled between the upper frame and the lower frame so that it can be combined with the upper frame and the lower frame constituting the pallet, but the pillar member is a conventional square pipe The overall strength and durability of the pallet can be improved by constructing a plurality of pillar members spaced apart from each other between the upper frame and the lower frame to lighten the overall weight of the pallet by reducing the weight compared to the solid-type pillar part. It is a useful invention that allows

1 is an exploded perspective view showing an upper frame of the configuration of the present invention
Figure 2 is a perspective view showing a first pillar member of the configuration of the present invention
Figure 3 is a perspective view showing the upper plate frame of the configuration of the present invention
Figure 4 is an exploded view and a front view showing the top plate frame of the configuration of the present invention
Figure 5 is a plan view showing (A - A ') of Figure 4
Figure 6 is a plan view showing another embodiment of the first pillar member of the configuration of the present invention
Figure 7 is a front view showing a preferred embodiment of the upper plate frame of the configuration of the present invention
Figure 8 is an exploded perspective view showing a lower frame of the configuration of the present invention
Figure 9 is a perspective view showing a second pillar member of the configuration of the present invention
10 is a perspective view showing a lower frame of the configuration of the present invention
11 is an exploded view and a front view showing a lower frame of the configuration of the present invention
12 is a perspective view showing a preferred embodiment of the present invention

In the present invention, the upper frame and the lower frame are coupled to each other using a pillar member, and a plurality of pillar members are formed between the upper frame and the lower frame to improve the overall strength of the upper frame and the lower frame, Provides a pallet with improved strength to improve storage, transportation and work efficiency by lightening the lower frame.

Hereinafter, a preferred configuration and operation of the present invention for achieving the above object will be described with reference to FIGS. 1 to 12 with reference to the accompanying drawings.

First, prior to explaining the present invention, referring to FIGS. 1 to 4 for its configuration, in the pallet, the base portion 111 and the base portion 111 are bent downward from both ends of the base portion 111 to form extensions. The first upper frame 110 composed of the first bent portion 113, the base portion 121, and the first bent portion formed by bending upward and extending from both ends of the base portion 121, respectively. It consists of a first lower frame 120 composed of 123, a body portion 131, and a first extension portion 133 that is bent backward and extended from both ends of the body portion 131, respectively. It is composed of a first pillar member 130, and the first pillar member 130 is spaced apart from each other along the longitudinal direction between the first upper frame 110 and the first lower frame 120, and a plurality of an upper plate frame 100 configured by mutually coupling the first upper frame 110, the first pillar member 130, and the first lower frame 120; A second upper frame 210 composed of a base portion 211 and first bent portions 213 bent downward from both ends of the base portion 111 to extend, and a base portion 221 And, a second lower frame 220 composed of first bent parts 223 bent upwards and extending from both ends of the base part 221, the body part 231, and the body part It is composed of a second pillar member 230 composed of a first extension part 233 that is bent backward from both ends of 231 and extends, and the second pillar member 230 extends from the second upper part A plurality of them are disposed spaced apart from each other along the longitudinal direction between the frame 210 and the second lower frame 220, and the second upper frame 210, the second pillar member 230 and the second lower frame ( 220) are mutually coupled to each other; and the upper frame 100 is parallel to each other and a plurality of them are spaced apart from each other, and the lower frame is placed under the upper frame 100. A plurality of (200) are spaced apart from each other along the longitudinal direction of the upper plate frame (100), and the lower plate frame (200) is coupled perpendicularly to the upper plate frame (100).

If the present invention configured as described above is described in more detail,

First, the upper plate frame 100 is composed of a first upper frame 110, a first lower frame 120 and a first pillar member 130.

The first upper frame 110 is composed of a base portion 111 and a first bent portion 113 extending by being bent downward from both ends of the base portion 111, respectively.

Here, the base portion 111 is preferably formed in a plate shape elongated in the longitudinal direction.

In addition, in the first upper frame 110, one or more concave portions 111a are formed along the longitudinal direction on one side of the upper portion of the base portion 111, and the ends of each of the first bent portions 113 It is configured to include a second bent portion 115 that is bent inward from the end and extended.

The first lower frame 120 is composed of a base portion 121 and first bent portions 123 that are bent upward and extended from both ends of the base portion 121, respectively.

Here, the first lower frame 120 is formed in the same or similar shape as the first upper frame 110, and the base portion 121 also includes the base portion 111 of the first upper frame 110. ) It is preferably formed in a plate shape elongated in the longitudinal direction, which is the same shape as ).

In addition, in the first lower frame 120, one or more concave portions 121a are formed along the longitudinal direction on one side of the lower portion of the base portion 121, and the ends of each of the first bent portions 123 It is configured to include a second bent portion 125 that is bent inward from the end and extended.

The first pillar member 130 is composed of a body portion 131 and a first extension portion 133 that is bent backward from both ends of the body portion 131 and extends.

That is, as shown in FIGS. 3 and 4, the body portion 131 of the first pillar member 130 has a plate shape disposed perpendicular to the first upper frame 110 and the first lower frame 120. It is formed, but is disposed on the first upper frame 110 and the first lower frame 120 and when combined with the first upper frame 110 and the first lower frame 120, the upper end portion of the first The base part 111 of the upper frame 110 is in contact with the lower surface, the lower end is formed to contact the upper surface of the first lower frame 120, and the first extension part 133 has the upper end of the first lower frame 120. It is preferable that the base part 111 of the first upper frame 110 is in contact with the lower surface and the lower end is in contact with the upper surface of the first lower frame 120, which is the The body part 131, the first extension part 133, and the second extension part 135, which will be described below, support the first upper frame 110 so that the load loaded on the first upper frame 110 in order to firmly support the

In addition, the first pillar member 130 includes grooves 131a respectively formed in the upper and lower portions of the body portion 131 to correspond to the recesses 111a and 121a, and each of the first The second extension part 135 is formed by being bent inwardly from the end of the extension part 133 to extend.

That is, when the first pillar member 130 is disposed on the first upper frame 110 and the first lower frame 120 and combined with the first upper frame 110 and the first lower frame 120 , The recessed portion 111a and the recessed portion 121a are inserted into the respective grooves 131a and more stably coupled to firmly support the load loaded on the top of the first upper frame 110 will be.

Here, a plurality of first pillar members 130 are disposed spaced apart from each other along the longitudinal direction between the first upper frame 110 and the first lower frame 120, but the first upper frame 110 And coupled to the first lower frame 120 by welding (w).

That is, as shown in FIG. 7 , the first extension part 133 of the first pillar member 130, the first bent part 113 of the first upper frame 110, and the first lower frame 120 ) The first bent portion 123 of the mutually abutting portion is coupled by welding (w).

In addition, as shown in FIGS. 1 and 5, a plurality of first pillar members 130 are arranged spaced apart from each other along the longitudinal direction between the first upper frame 110 and the first lower frame 120. Doedoe first pillar member 130 disposed at both ends are configured to face each other while forming a mutually opposed.

On the other hand, as shown in FIGS. 3, 4, and 5, the front part of the body part 131 corresponds to the groove part 131a corresponding to the recessed part 111a and the recessed part 121a and is located on the same line. A portion 131b is formed.

That is, the tendon part 131b is the body part 131 that receives force from the main part 111a of the first upper frame 110 and supports it when a load is loaded on the upper part of the first upper frame 110. It is formed to improve the strength and durability of.

In addition, as shown in FIG. 6, one or a plurality of force parts 133a spaced apart from each other are formed on the side surface of the first extension part 133.

That is, the strength and strength of the first extension part 133 that receives force from the first upper frame 110 and supports it when a load is loaded on the upper part of the first upper frame 110. It is formed to improve durability.

The lower frame 200 is composed of a second upper frame 210, a second lower frame 220 and a second pillar member 230.

The second upper frame 210 has a base portion 211 in which a band insertion groove 211a is formed along the longitudinal direction on one side of the upper portion, and is bent downward from both ends of the base portion 111 and extends. It consists of a first bent part 213 formed and a second bent part 215 bent inwardly from the end of each of the first bent parts 213 to extend.

The second lower frame 220 includes a base portion 221 having a band insertion groove 221a formed along a longitudinal direction on one side of the lower portion, and bent upwardly from both ends of the base portion 221 to extend. It consists of a first bent part 223 formed and a second bent part 225 formed by bending inwardly from the end of each of the first bent parts 223 and extending.

Here, the band insertion groove 211a and the band insertion groove 221a are formed through the band insertion groove 211a or the band insertion groove 221a when bending the load loaded on the top of the top plate frame 100. By inserting the band, it is formed so that the load can be firmly banded to the pallet 10.

The second pillar member 230 includes a body portion 231 in which grooves 231a corresponding to the band insertion groove 211a and the band insertion groove 221a are respectively formed on one side of the upper and lower sides, and the body portion A first extension part 233 bent backward from both ends of 231 to extend, and a second extension part 233 bent inward from the end end of each first extension part 233 to extend ( 235).

Here, a plurality of second pillar members 230 are disposed spaced apart from each other along the longitudinal direction between the second upper frame 210 and the second lower frame 220, and the second upper frame 210 And it is coupled to the second lower frame 220 by welding (w) and is composed of a lower frame 200.

That is, as shown in FIG. 11, the second extension part 233 of the second pillar member 230, the second bent part 213 of the second upper frame 210, and the second lower frame 220 The part where the second bent portion 223 of ) abuts with each other is coupled by welding (w).

In other words, the pallet 10 of the present invention is composed of a plurality of upper plate frames 100 arranged in parallel and spaced apart from each other, and the lower plate frame 200 is placed under the upper plate frame 100 to form an upper plate frame 100. ) are spaced apart from each other along the longitudinal direction of the plate and a plurality of them are joined by welding, and the lower plate frame 200 is formed by combining the upper plate frame 100 perpendicularly.

In addition, as shown in FIGS. 8, 10, and 12, the second pillar member 230 is spaced apart from each other along the longitudinal direction between the second upper frame 210 and the second lower frame 220, and a plurality of Two second pillar members 230 facing each other while forming a mutually opposing doedoe disposed at both ends are configured, respectively.

That is, when the band is inserted through the band insertion groove 221a and the load loaded on the upper frame 100 is firmly bent to the pallet 10, excessive force is applied to both ends of the lower frame 200 When this is applied, it is to prevent twisting or deformation of both ends of the lower frame 200 to improve the overall strength of the pallet 10.

As shown in FIGS. 9 and 11, a force part 231b is formed on the front side of the body part 231 of the second pillar member 230.

That is, the tendon part 231b improves the strength and durability of the body part 231 supported by receiving force from the second upper frame 210 when a load is loaded on the upper part of the upper plate frame 100. It is formed so that it can be done.

According to the pallet with improved strength according to the present invention, the pillar member is coupled between the upper frame and the lower frame so that it can be combined with the upper frame and the lower frame constituting the pallet, but the pillar member is a conventional square pipe The overall strength and durability of the pallet can be improved by constructing a plurality of pillar members spaced apart from each other between the upper frame and the lower frame to lighten the overall weight of the pallet by reducing the weight compared to the solid-type pillar part. It is a useful invention that allows

10 : Pallet
100: top frame
110: first upper frame
111: base part 111a: lower part
113: first bent portion
115: second bent part
120: first lower frame
121: base part 121a: lower part
123: first bent part
125: second bent part
130: first column member
131: body part
131a: groove part 131b: strength part
133: first extension
135: second extension
200: lower frame
210: second upper frame
211: base part 211a: band insertion groove
213: first bending part
215: second bent part
220: second lower frame
221: base part 221a: band insertion groove
223: first bending part
225: second bent part
230: 2nd column member
231: body part
231a: groove part 231b: strength part
233: first extension
235: second extension
w: welding

Claims (6)

In the pallet,
A first upper frame 110 composed of a base portion 111 and first bent portions 113 bent downward from both end portions of the base portion 111 to extend,
A first lower frame 120 composed of a base portion 121 and first bent portions 123 bent upwardly and extending from both ends of the base portion 121, respectively;
It is composed of a body portion 131 and a first pillar member 130 composed of a first extension portion 133 bent backward and extending from both end portions of the body portion 131,
A plurality of first pillar members 130 are disposed spaced apart from each other along the longitudinal direction between the first upper frame 110 and the first lower frame 120, the first upper frame 110, an upper plate frame 100 configured by mutually coupling the first pillar member 130 and the first lower frame 120;
A second upper frame 210 composed of a base portion 211 and first bent portions 213 bent downward from both ends of the base portion 111 to extend,
A second lower frame 220 composed of a base portion 221 and first bent portions 223 bent upwardly and extending from both ends of the base portion 221, respectively;
It is composed of a body portion 231 and a second pillar member 230 composed of a first extension portion 233 that is bent backward and extended from both ends of the body portion 231,
A plurality of second pillar members 230 are disposed spaced apart from each other along the longitudinal direction between the second upper frame 210 and the second lower frame 220, the second upper frame 210, The second pillar member 230 and the second lower frame 220 are mutually coupled to each other to form a lower plate frame 200; composed of,
The upper plate frames 100 are arranged in parallel and spaced apart from each other, and the lower plate frames 200 are spaced apart from each other along the longitudinal direction of the upper plate frame 100, A plurality of them are combined, but the lower plate frame 200 is vertically coupled to the upper plate frame 100,
The first upper frame 110,
A concave portion 111a formed by inserting one or more from the upper side to the lower side along the longitudinal direction on one side of the upper portion of the base portion 111 and formed in a semicircular arc shape on the front cross section;
It is configured to include a second bent part 115 bent inwardly from the end end of each of the first bent parts 113 and extended,
The first lower frame 120,
A concave portion 121a formed by inserting one or more of them from the lower side to the upper side along the longitudinal direction on one side of the lower part of the base portion 121 and formed in a semicircular arc shape on the front cross section;
It is configured to include a second bent part 125 bent inwardly from the end end of each of the first bent parts 123 to extend,
The first pillar member 130,
Grooves 131a respectively formed in the upper and lower portions of the body portion 131 to correspond to the concave portion 111a and the concave portion 121a,
It is configured to include a second extension portion 135 bent inwardly from the end of each of the first extension portions 133 to extend,
The second upper frame 210,
A band insertion groove 211a formed along the longitudinal direction on one upper side of the base portion 211,
It is configured to include a second bent portion 215 that is bent inwardly and extended from the end of each first bent portion 213,
The second lower frame 220,
A band insertion groove 221a formed along the longitudinal direction on one side of the lower portion of the base portion 221,
It is configured to include a second bent portion 225 that is bent inwardly and extended from the end of each first bent portion 223,
The second pillar member 230,
Grooves 231a respectively formed to correspond to the band insertion groove 211a and the band insertion groove 221a at the upper and lower portions of the body portion 231;
Each of the first extensions 233 includes a second extension 235 that is bent inwardly and extends from the end,
On the front part of the body part 131,
A strength portion 131b corresponding to the groove portion 131a corresponding to the recessed portion 111a and the recessed portion 121a and positioned on the same line but interpolated from the front to the rear is formed,
One or a plurality of tendons 133a spaced apart from each other are formed on the side surface of the first extension part 133,
The first pillar member 130 is spaced apart from each other in the longitudinal direction between the first upper frame 110 and the first lower frame 120, and a plurality of first pillar members disposed at both ends. (130) is configured to face each other in opposition,
The second pillar member 230 is spaced apart from each other along the longitudinal direction between the second upper frame 210 and the second lower frame 220, and a plurality of them are disposed, facing each other at both ends. Two second pillar members 230 are respectively configured,
Pallet with improved strength, characterized in that the force part (231b) is formed on the front part of the body part (231) of the second pillar member (230). delete delete delete delete delete

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