JP2021165051A - Cart - Google Patents

Abstract

To suppress noise from a cart.SOLUTION: A cart (1) comprises: a placement board (2) having a placement surface (21) for placing goods; a side frame (3) including at least multiple support posts (31) extendedly set up from an end part of the placement surface in a vertically upward direction; and a first resin member (4), which is installed across upper ends of different support posts among multiple support posts, for covering the upper end and an upper side part related to each of the multiple support posts between which the first resin member is provided in a hanging manner.SELECTED DRAWING: Figure 1

Description

The present invention relates to a carrier.

As a conventional technique, a transport vehicle provided with a side frame is known.

Jikkenhei 03-013276 Gazette

However, as shown in FIG. 4 of Patent Document 1, the transport vehicle of Patent Document 1 is prepared for adjacent transport vehicles when the conventional transport vehicles are stored side by side, when the stored transport vehicles are taken out, and the like. There is a problem that noise is generated due to the contact between the metal side frames.

One aspect of the present invention is to suppress noise caused by a carrier.

In order to solve the above problems, the carrier according to the first aspect of the present invention is a carrier provided with a mounting plate provided with a mounting surface on which an article is placed, and is an end portion of the above-mentioned mounting surface. A side frame including at least a plurality of struts extending vertically upward from the stanchion, and a plurality of struts included in the plurality of struts that are erected at the upper ends of different struts and are erected by themselves. It is configured to include a first resin member that covers the upper end portion and the upper side surface of each of the columns.

According to the above configuration, since the first resin member covers the upper part of the side surface of the column, the columns do not come into contact with each other due to the contact between the first resin members of the adjacent carriers, so that the noise caused by the carrier is suppressed. be able to. In particular, in the case of a carrier (for example, a basket car) that folds the side frame, noise generated at the time of folding can be suppressed. Further, since the first resin member covers the upper end portion of the column, it is possible to prevent the first resin member from being displaced downward.

It is also possible to move the carrier by putting a hand on the first resin member. When the first resin member of the carrier is used by hand, since the first resin member is erected between the upper ends of different columns, there is no influence on the hand due to rust on the columns, welding marks, etc. Friendly to.

In the above aspect 1, the carrier according to the second aspect of the present invention is provided at the end of the above-mentioned mounting surface, and supports a part of the support column of the side frame, and the plurality of support columns. A second resin member that covers the lower end portion of at least one of the two resin members may be further provided, and the second resin member may be fitted to the support column support portion.

According to the above configuration, since the second resin member covers the lower end portion of at least one of the plurality of columns, noise when the columns are attached to the mounting surface can be suppressed. Further, when the support column is attached to the mounting surface, the lower end portion of the support column is less likely to be scratched.

In the carrier according to the third aspect of the present invention, in the above aspect 2, the support column is configured to be able to be inserted and removed from the support column support portion, and the insertion of the second resin member is started. The first cross-sectional shape cut in the orthogonal plane orthogonal to the insertion direction at the starting position is from the second cross-sectional shape cut in the orthogonal plane at the intermediate position where the insertion is later than the starting position. It may be configured to have a tapered shape formed to be small.

According to the above configuration, since the support column can be inserted into and removed from the support column support portion, the carrier can be flexibly utilized by attaching or detaching the support column to the mounting surface. can. The second resin member has a tapered shape in which the first cross-sectional shape of the insertion start position is smaller than the second cross-sectional shape of the intermediate position where the insertion is later than the start position. It can be easily inserted into the support column.

In the carrier according to the fourth aspect of the present invention, in the above aspect 2 or 3, the second resin member engages with the upper end surface of the support column support portion in a state of being inserted into the support column support portion. The second resin member may be configured to include a pull-out prevention portion that protrudes outward from the side wall.

According to the above configuration, in a state where the strut support portion penetrates from the upper surface to the lower surface of the mounting plate and the second resin member is inserted into the strut support portion, it engages with the upper end surface of the strut support portion. Since a pull-out prevention portion that protrudes outward from the side wall of the second resin member is provided so as to fit, the support column of the side frame can be easily attached to the support column support portion. Further, the support column of the side frame can be easily removed from the support column support portion by lifting the upper portion of the second resin member from the detachment prevention portion.

In any of the above aspects 1 to 4, the carrier according to the fifth aspect of the present invention includes a plurality of lower wall portions extending vertically downward from the above-mentioned mounting surface, and a lower end portion of the plurality of lower wall portions. A connecting lower wall portion erected with each other and a plurality of connecting wall portions are further provided, and each of the plurality of connecting wall portions is erected on the plurality of lower wall portions and on the connecting lower wall portion. Of the plurality of lower wall portions, the lower end portion of the lower wall portion located on the outermost side of the carrier is an inclined surface that descends vertically downward from the outside to the inside of the carrier. It may be configured to have.

According to the above configuration, since the plurality of connecting wall portions are erected on the lower wall portion and connected to the connecting lower wall portion, the bending strength of the mounting plate can be improved by the rib structure. Therefore, it is possible to prevent the mounting plate from being destroyed even when the carrier loaded with heavy articles is lifted by a forklift, a hand lift, or the like. In addition, since the lower end of the lower wall portion located on the outermost side of the carrier has an inclined surface, the tip of the fork such as a forklift or a handlift can smoothly enter, so that the workability when lifting the carrier is improved. Can be done.

According to one aspect of the present invention, noise caused by a carrier can be suppressed.

It is a top perspective view which shows the appearance of the carrier which concerns on Embodiment 1 of this invention. It is a bottom perspective view which shows the appearance of the carrier which concerns on Embodiment 1 of this invention. It is a perspective view which shows the appearance of the 1st resin member which concerns on Embodiment 1 of this invention. It is a perspective view which shows the appearance of the 2nd resin member which concerns on Embodiment 1 of this invention. It is a figure which shows the fitting of the support column support part and the 2nd resin member which concerns on Embodiment 1 of this invention. It is a perspective view which shows the structure of the mounting plate which concerns on Embodiment 1 of this invention. It is a side view of the carrier which concerns on Embodiment 2 of this invention.

[Embodiment 1]
Hereinafter, Embodiment 1 of the present invention will be described in detail.

(Structure of carrier 1)
FIG. 1 is a top perspective view showing the appearance of the carrier 1 according to the present embodiment. The transport tool 1 is a transport vehicle for loading and transporting articles. The carrier 1 is used, for example, by loading a load such as a resin container or a cardboard box on a mounting surface 21 and using it in a backyard of a supermarket, a convenience store, or the like. Further, the carrier 1 is loaded on the loading platform of the truck and is used to move the load loaded on the carrier 1 when the load is carried from the truck to a convenience store or the like.

As shown in the left figure of FIG. 1, the carrier 1 includes a mounting plate 2, a side frame 3, a first resin member 4, and casters 6. The mounting plate 2 is a member that serves as a base for the carrier 1, and has a substantially rectangular shape in a plan view.

The mounting plate 2 is provided with a mounting surface 21 on which a container made of resin or the like and a luggage (article) such as a cardboard box are placed.

Two side frames 3 are erected at both ends of the mounting surface 21 in the longitudinal direction, that is, at the front end and the rear end (end). The side frame 3 includes at least two (plural) columns 31 extending vertically upward from the end of the mounting surface 21. The support column 31 is made of a metal such as iron.

In the present embodiment, the side frames 3 are provided at both ends of the mounting surface 21 in the longitudinal direction, but the present invention is not limited to this. The following four variations of the arrangement position of the side frame 3 can be mentioned. (1) One side frame 3 is provided near the end of any one of the four sides of the mounting surface 21 having a substantially rectangular shape in a plan view. (2) One side frame 3 is provided near the end of each of the two sides. (3) One side frame 3 is provided near the end of each of the three sides. (4) One side frame 3 is provided in the vicinity of the ends of all four sides.

Further, the side frame 3 may include three or more columns 31. Further, the support column 31 may be fixed to the mounting surface 21 or may be removable. Further, one or more side frames 3 may be provided in the vicinity of the end of one side.

The first resin member 4 is erected between the upper ends of different struts 31 among the struts 31 included in the plurality of struts 31, and the upper ends and side surfaces of the plurality of struts 31 on which the first resin member 4 is erected. Cover the top.

More specifically, the first resin member 4 is provided on the support column 31 so as to cover the side surface of the region from the upper end portion to a predetermined length. As a result, when a plurality of carriers 1 are arranged adjacent to each other, even if a force is applied so that the side frame 3 of one carrier 1 and the side frame 3 of the other carrier 1 collide with each other. The first resin members 4 come into contact with each other without the columns 31 coming into contact with each other.

Here, if the columns 31 come into contact with each other, there is a problem that the metals come into contact with each other and the collision sound becomes relatively loud. can. Further, the first resin member 4 has a structure that simultaneously covers the upper end portion (upper surface side) of the support column 31 in addition to the upper side surface of the support column 31.

Therefore, it is possible to prevent the first resin member 4 from slipping downward with respect to the support column 31. The first resin member 4 is made of a material such as polypropylene (PP), polyethylene (PE), or elastomer, and is not limited as long as it is a resin-based material, and may contain a plurality of materials.

As shown in the right figure of FIG. 1, the carrier 1 loads a plurality of side frames 3 between the side frames 3 erected on the front end and the rear end of the mounting surface 21. Is possible. Grooves 26 are provided at both end portions of the mounting surface 21 in the lateral direction.

The side frame 3 is formed by accommodating a pair of second resin members 5 (details will be described later) provided at the lower ends of the columns 31 of the plurality of loaded side frames 3 in the grooves 26, respectively. It is possible to align and load on the mounting surface 21.

FIG. 2 is a bottom perspective view showing the appearance of the carrier 1 according to the present embodiment. As shown in FIG. 2, a lower wall portion 23 and a connecting lower wall portion 24 are provided on the lower surface of the mounting plate 2. The lower wall portion 23 has an inclined surface 231. Details will be described later.

The carrier 1 is used by inserting the side frame 3 into the support column 22 and using the side frame 3 without inserting the side frame 3 into the support column 22, and the side frame 3 is used by inserting the side frame 3 into the support column. There is a form in which the caster 6 is not attached without being inserted into the support portion 22. In addition, in this specification, any form may be referred to as a carrier 1. That is, the mounting plate 2 alone can be used as the carrier 1.

(Structure of 1st resin member 4)
FIG. 3 is a perspective view showing the appearance of the first resin member 4 according to the present embodiment. As shown in the left view and the center view of FIG. 3, the first resin member 4 includes a flat plate portion 41, a reinforcing rib 42, a card holder mounting portion 43, a support column insertion portion 44, a horizontal rib 45, and a skirt rib 46. ing.

The flat plate portion 41 is a flat member surrounded by two portions of the first resin member 4 that cover the upper side surface of the column 31 and the inside (that is, the inner portion) of the portion erected between the columns 31. be. The flat plate portion 41 is used as an information display space. For example, some information may be written on the flat surface of the flat plate portion 41, or a card or the like on which the information is written may be attached.

The reinforcing rib 42 has an outer peripheral portion that is a portion erected between the columns 31, an inner portion that is separated inward by a predetermined distance from the side and the upper side of the outer peripheral portion, and a portion between the outer peripheral portion and the inner portion. It is provided in. As a result, the required strength can be secured while minimizing the amount of resin required for the first resin member 4.

Specifically, the reinforcing ribs 42 provided on the outer peripheral portion and the inner peripheral portion project perpendicularly to the plane of the flat plate portion 41 so as to sandwich the flat plate portion 41 at the left and right ends of the flat plate portion 41. Further, the reinforcing rib 42 provided in the portion between the outer peripheral portion and the inner peripheral portion connects the outer peripheral portion, the inner portion, and the flat plate portion 41 between the outer peripheral portion and the inner portion, and connects the flat plate portion 41. They are arranged in an arch shape in a direction orthogonal to the plane of.

The card holder mounting portion 43 is a protrusion for fixing the card holder mounted on the flat plate portion 41. It is possible to change the information to be displayed by exchanging the cards in the card holder.

The column insertion portions 44 are provided at both left and right ends of the lower surface of the first resin member 4. More specifically, the support column insertion portion 44 is arranged between the reinforcing rib 42 on the outer peripheral portion and the reinforcing rib 42 on the inner portion. As shown in the right figure of FIG. 3, the upper end portion of the support column 31 is inserted into the support column insertion portion 44. The lower end of the support column insertion portion 44 is open, and the upper end is covered with the reinforcing rib 42. As a result, it is possible to prevent the first resin member 4 from slipping downward with respect to the support column 31. Further, a horizontal rib 45 is provided at the lower end portion between the inner portions of the first resin member 4 in a direction orthogonal to the plane of the flat plate portion 41. Further, a skirt rib 46 is provided at the lower end of the first resin member 4 so as to project vertically downward along the lower end.

(Structure of 2nd Resin Member 5)
FIG. 4 is a perspective view showing the appearance of the second resin member 5 according to the present embodiment. The left view of FIG. 4 is a top perspective view. The central view of FIG. 4 is a bottom perspective view. The right view of FIG. 4 is a perspective view including a vertical cross section.

As shown in FIG. 4, the second resin member 5 includes a main body portion 51, a pull-out prevention portion 52, a protection portion 53, a rib 54, and a hole portion 55.

The main body 51 of the second resin member 5 has a substantially cylindrical shape and a tapered shape, and the diameter becomes tapered vertically downward. In other words, the main body 51 has a tapered shape in which the circular shape having a horizontal cross section gradually decreases from the upper part to the lower part.

The pull-out prevention portion 52 is a member that projects outward from the outer surface of the main body portion 51.

The protective portion 53 is a member formed diagonally inward from the lower end of the cylinder of the main body 51 and further extending vertically upward. The protection portion 53 is provided to protect the lower end portion of the support column 31.

The ribs 54 are rib-shaped members attached to the inner surface of the main body 51 in the vertical direction, and a plurality of ribs 54 are provided at predetermined intervals. The rib 54 is provided to improve the strength of holding the support column 31 of the side frame 3.

The hole 55 is formed so as to penetrate from the outer surface to the inner surface of the main body 51, and two holes 55 are provided in the diameter direction. A bolt, which will be described later, is inserted into the hole 55.

The second resin member 5 is made of a material such as polypropylene (PP), polyethylene (PE), or elastomer, and is not limited as long as it is a resin-based material, and may contain a plurality of materials.

(Matching of the support column 22 and the second resin member 5)
FIG. 5 is a diagram showing the fitting of the support column support portion 22 and the second resin member 5 according to the present embodiment. The upper view of FIG. 5 is a cross-sectional view of the fitting portion. The lower figure of FIG. 5 is a perspective view before fitting.

As shown in FIG. 5, the support column 22 is provided at the end of the mounting surface 21 and supports a part of the support column 31 of the side frame 3. More specifically, as shown in FIG. 1, the support columns 22 are provided at the four corners of the mounting surface 21. The support column 22 is a through hole that penetrates from the front surface to the back surface of the mounting surface 21, and when a part of the side frame 3 is inserted, the side frame 3 is fixed to the mounting plate 2.

In the present embodiment, the support column 22 has a through hole, but it may be non-penetrating, or the back surface side of the support column 22 may have a rib structure. Further, the support column 22 may have a substantially cylindrical shape protruding vertically upward from the mounting plate 2.

The second resin member 5 covers the lower end portion of the support column 31. The protective portion 53 of the second resin member 5 enters the hollow portion of the support column 31. The second resin member 5 is fitted to the support column support portion 22.

The strut 31 is configured so that it can be inserted into and removed from the strut support portion 22. The second resin member 5 cuts the side wall in contact with the inner wall of the support column 22 in a state of being inserted into the support column 22 in an orthogonal plane orthogonal to the insertion direction at the start position where the insertion is started. The first cross-sectional shape formed is a tapered shape formed smaller than the second cross-sectional shape cut in an orthogonal plane at an intermediate position where the insertion is later than the start position.

Further, the support column support portion 22 penetrates from the upper surface to the lower surface of the mounting plate 2. Therefore, the structure is such that water and dust do not collect inside the support column 22. The detachment prevention portion 52 of the second resin member 5 projects outward from the side wall of the second resin member 5 so as to engage with the upper end surface of the support column support portion 22 in a state of being inserted into the support column support portion 22. Therefore, the second resin member 5 can be prevented from falling off from the support column support portion 22. The support column 22 may be non-penetrating, or may have a substantially cylindrical shape protruding vertically upward from the mounting plate 2.

As shown in the upper part of FIG. 5, the support column 31 is provided with a hole at a position corresponding to the hole portion 55 of the second resin member 5. Then, a bolt (not shown) penetrating from one hole 55 to the other hole 55 through the hole of the support column 31 and a nut (not shown) that engages with the bolt are used to form the support column 31 and the first position. 2 The resin member 5 is bonded.

(Structure of mounting plate 2)
FIG. 6 is a perspective view showing the structure of the mounting plate 2 according to the present embodiment. The left view of FIG. 6 is a bottom perspective view of the mounting plate 2. The upper right view and the lower right view of FIG. 6 are top perspective views of the mounting plate 2.

As shown in FIG. 6, the mounting plate 2 of the carrier 1 further includes a plurality of lower wall portions 23, a connecting lower wall portion 24, and a plurality of connecting wall portions 25. The plurality of lower wall portions 23 extend vertically downward from the mounting surface 21 of the mounting plate 2.

Further, the plurality of lower wall portions 23 extend in the longitudinal direction of the mounting surface 21. Therefore, the lower wall portion 23 can secure the strength against the bending force (reinforce the mounting plate 2) when the article is placed only in the center of the mounting surface 21. The connecting lower wall portion 24 is erected between the lower end portions of the lower wall portions 23 that are adjacent to each other among the plurality of lower wall portions 23. Further, a plurality of connecting lower wall portions 24 are provided, and through holes are formed between the connecting lower wall portions 24 adjacent to each other. The through hole is formed so as to leave a part of the rib of the connecting lower wall portion 24. In the present embodiment, a through hole is formed between the connecting lower wall portions 24 adjacent to each other, but the structure may be such that the through hole is not formed.

The plurality of connecting wall portions 25 are arranged side by side at predetermined intervals in the horizontal direction. Each of the plurality of connecting wall portions 25 is erected on the lower wall portion 23 adjacent to each other among the plurality of lower wall portions 23, and is connected to the connecting lower wall portion 24. As described above, the rigidity of the mounting plate 2 is increased by the rib structure including the plurality of lower wall portions 23, the connecting lower wall portion 24, and the plurality of connecting wall portions 25. Therefore, it is possible to secure the strength when loading heavy articles and the strength when transporting by a forklift, a hand lift, or the like with heavy articles loaded.

Of the plurality of lower wall portions 23, the lower end portion of the lower wall portion 23 located on the outermost side of the carrier 1 has an inclined surface 231 that descends vertically downward from the outside to the inside of the carrier 1. Therefore, when the carrier 1 is lifted by a forklift, a hand lift, or the like, it is possible to more easily insert the tip of the fork into the lower part of the mounting plate 2.

[Embodiment 2]
Embodiment 2 of the present invention will be described below. For convenience of explanation, the members having the same functions as the members described in the first embodiment are designated by the same reference numerals, and the description thereof will not be repeated.

FIG. 7 is a side view of the carrier 1a according to the present embodiment. The carrier 1a is a pallet for placing and transporting articles. The carrier 1a is different from the carrier 1 according to the first embodiment in that the carrier 1 is not provided with the caster 6. The other configuration of the carrier 1a is the same as that of the carrier 1 according to the first embodiment. Even if the carrier 1 is not provided with the casters 6, the carrier 1a can suppress noise in the same manner as the carrier 1.

The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the claims, and the embodiments obtained by appropriately combining the technical means disclosed in the different embodiments. Is also included in the technical scope of the present invention.

1, 1a Carrier 2 Mounting plate 3 Side frame 4 1st resin member 5 2nd resin member 21 Mounting surface 22 Supporting part 23 Lower wall part 24 Connecting lower wall part 25 Connecting wall part 31 Supporting column 231 Inclined surface

Claims (5)

A carrier having a mounting plate provided with a mounting surface on which articles are placed.
A side frame including at least a plurality of columns extending vertically upward from the end of the above-mentioned mounting surface, and a side frame.
Among the struts included in the plurality of struts, a first resin member that is erected between the upper ends of the struts that are different from each other and that covers the upper end and the upper side surface of each of the plurality of struts on which the struts are erected.
A carrier characterized by being equipped with. A strut support portion provided at the end of the above-mentioned mounting surface and supporting a part of the strut of the side frame, and a strut support portion.
A second resin member that covers the lower end of at least one of the plurality of columns,
With more
The carrier according to claim 1, wherein the second resin member is fitted to the support column support portion. The strut is configured so that it can be inserted and removed from the strut support portion.
The second resin member has an intermediate position in which the first cross-sectional shape cut in an orthogonal plane orthogonal to the insertion direction at the start position where the insertion is started is later than the start position. The carrier according to claim 2, wherein the carrier has a tapered shape formed smaller than the second cross-sectional shape cut in the orthogonal plane. The second resin member is provided with a pull-out prevention portion that protrudes outward from the side wall of the second resin member so as to engage with the upper end surface of the support column support portion in a state of being inserted into the support column support portion. The carrier according to claim 2 or 3. A plurality of lower walls extending vertically downward from the above-mentioned mounting surface,
A connecting lower wall portion erected between the lower ends of the plurality of lower wall portions,
With multiple connecting walls,
Each of the plurality of connecting wall portions is erected on the plurality of lower wall portions and is connected to the connecting lower wall portion.
Among the plurality of lower wall portions, the lower end portion of the lower wall portion located on the outermost side of the carrier has an inclined surface that descends vertically downward from the outside to the inside of the carrier. The carrier according to any one of claims 1 to 4.

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