Grip structure and shelf with grip structure

Abstract

To realize grip structure that hardly gives unpleasantness.SOLUTION: A grip part (12) includes a first grip part (20) and a second grip part (30). The first grip part (20) and the second grip part (30 are alternately disposed in an extending direction (X direction). Connecting surfaces (26, 27, 36, and 37) include convex curved surfaces or inclined surfaces.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a grip structure and a shelf board equipped with a grip structure. [Background technology]

[0002] Conventionally, containers for storing items have been known. For example, the container described in Patent Document 1 has a handle hole through which a user can insert their hand when lifting the container. When carrying the container, the user inserts their hand into the handle hole and grasps the handle portion of the container located above the handle hole. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 10-316139 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the container disclosed in Patent Document 1 has an angular shape at the handle portion located above the handle hole. When a user grasps the handle, the angular portion of the container comes into contact with the user's palm and fingers. Because the load is concentrated on the angular portion, the angular portion digs into the palm and fingers. This causes pain and discomfort to the user.

[0005] An object of one aspect of the present invention is to realize a grip structure that is less likely to cause pain or discomfort to a user when the user grips the grip portion. [Means for solving the problem]

[0006] In order to solve the above-mentioned problems, a grip structure according to one aspect of the present invention is a grip structure provided on a carrier, the grip structure comprising a first grip portion having a first reference wall extending in a first direction, a first connecting wall extending from the first reference wall in a second direction opposite to the first direction in a third direction perpendicular to the first direction, a first intermediate wall extending from the first connecting wall in the third direction in the third direction, a second connecting wall extending from the first intermediate wall in the first direction in the third direction, and a first end wall extending from the second connecting wall in the third direction in the second direction; and a second grip portion having a second continuous wall extending toward the third direction side, and a second end wall extending from the second continuous wall toward the second direction side on the third direction side, wherein the first grip portion and the second grip portion are arranged alternately along a fifth direction that is perpendicular to the first direction and the third direction, and a connection surface connecting the first reference wall and the first connecting wall of the first grip portion is a curved surface that is convex toward the second direction side or an inclined surface whose normal direction is toward a fourth direction side that is opposite to the third direction, and a connection surface connecting the second reference wall and the first continuous wall of the second grip portion is a curved surface that is convex toward the first direction side or an inclined surface whose normal direction is toward the fourth direction side, and a connection surface connecting the second connecting wall and the first end wall of the first grip portion and a connection surface connecting the second continuous wall and the second end wall of the second grip portion are curved surfaces that are convex toward the first direction side or an inclined surface whose normal direction is toward the third direction side. [Effects of the Invention]

[0007] According to one aspect of the present invention, it is possible to provide a grip structure that is less likely to cause pain or discomfort to a user when the user grips the grip portion. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a perspective view showing a cart according to a first embodiment of the present invention. [Figure 2] 1 is a perspective view of a shelf board provided in a cart according to a first embodiment of the present invention, viewed from the side where the shelf board is placed. [Figure 3] 1 is a perspective view of a shelf board provided in a cart according to a first embodiment of the present invention, viewed from the side of the surface on which the shelf board is to be placed. [Figure 4] 3 is a perspective view of the shelf board in cross section taken along CC in FIG. 2, as viewed from the installation surface side. [Figure 5] FIG. 3 is an enlarged view of a grip portion of the shelf board shown in FIG. 2. [Figure 6] FIG. 4 is an enlarged view of a grip portion of the shelf board shown in FIG. 3. [Figure 7] FIG. 6 is a cross-sectional view taken along line AA in FIG. 5. [Figure 8] FIG. 6 is a cross-sectional view taken along line BB in FIG. 5. DETAILED DESCRIPTION OF THE INVENTION

[0009] [Embodiment 1] An embodiment of the present invention will be described in detail below with reference to Figures 1 to 8. In this embodiment, a cage cart 1 will be described as an example of a carrier.

[0010] <Cage car> The car car 1 will be described with reference to Figure 1. Figure 1 is a perspective view showing the car car 1.

[0011] As shown in Figure 1, the basket 1 comprises a bottom 2, rollers 3, a frame 4, and shelves 10. The bottom 2 is a flat member. The bottom 2 is provided with a frame 4 and rollers 3. The frame 4 has a vertical frame 5 and a horizontal frame 6. The vertical frame 5 extends from the periphery of the bottom 2 in a direction perpendicular to the bottom 2. The horizontal frame 6 extends in a direction perpendicular to the vertical frame 5. Items are stored in the space enclosed by the frame 4. The rollers 3 are provided on the surface of the bottom 2 opposite to the surface on which the frame 4 is provided. The rollers 3 enable the basket 1 to move.

[0012] The shelf 10 is a component that can be attached or installed to the cart 1, or can be stored within the frame 4. The shelf 10 is in a first state in which an item can be placed on it by attaching both ends of the shelf 10 to the horizontal frame 6. In a second state different from the first state, the shelf 10 can also be attached to the cart 1 so that it is hung by attaching one end of the shelf 10 in the longitudinal direction to the horizontal frame 6 on the outside of the frame 4. In the second state, the shelf 10 can be stored within the frame 4 by arranging the shelf 10 perpendicular to the bottom 2 and lining it up within the frame 4, or by arranging the shelf 10 parallel to the bottom 2 and stacking multiple shelves on the bottom 2.

[0013] <Shelf 10> The shelf 10 provided on the cart 1 will be described using Figures 2 and 3. Figure 2 is a perspective view of the shelf 10 provided on the cart 1, seen from the side where the shelf 10 is placed, namely, the placement surface 111 of the shelf. Figure 3 is a perspective view of the shelf 10 provided on the cart 1, seen from the side where the shelf 10 is placed, namely, the placement surface 112 of the shelf. Figure 4 is a perspective view of the shelf 10, seen from the placement surface 112, in a cross section taken along line CC in Figure 2. For ease of explanation, the shelf 10 will be described below by defining three coordinate axes, namely, the X (X1-X2) direction, the Y (Y1-Y2) direction, and the Z (Z1-Z2) direction, as indicated by arrows in Figure 2, etc.

[0014] As shown in FIG. 2, the shelf 10 has a shelf body 11, a grip portion 12, handle holes 13, a reinforcing pipe 14, a pipe storage portion 15, and a protrusion 16. The shelf body 11 is a flat member. The shelf body 11 is a rectangular member with the Y direction as its longitudinal direction. The shape of the shelf body 11 is not limited to this and may be, for example, a circle, a triangle, a square, a polygon, or the like. The shelf body 11 has a placement surface 111 on the Z1 side. The placement surface 111 is a surface on which an item is placed. The shelf body 11 has an installation surface 112 on the back side (Z2 side) of the placement surface 111. The installation surface 112 is a surface that is installed on, for example, the frame 4, a floor, etc. (See FIG. 3). The shelf 10 is provided with a grip portion 12. Details of the grip portion 12 will be described later.

[0015] The shelf 10 is formed with handle holes 13. The handle holes 13 are formed on the Y1 and Y2 sides of the grip portion 12. Another handle hole 13 is also formed in the center of the shelf 10. In the illustrated example, the handle holes 13 are through-holes formed in a substantially rectangular shape. The handle holes 13 are not limited to the illustrated example. The shape of the handle holes 13 may be circular, triangular, polygonal, or other shapes. The size of the handle holes 13 need only be large enough for a user's fingers to pass through and for the user to grasp the grip portion 12 or the shelf body 11. The number of handle holes 13 is not particularly limited. For example, the grip portion 12 may be provided at the end of the shelf body 11, and one handle hole 13 may be formed adjacent to the grip portion 12 toward the center of the shelf body 11. Also, the handle hole 13 need not be formed in the center of the shelf body 11.

[0016] The shelf board 10 is provided with a pipe storage section 15 that can store a reinforcing pipe 14. The pipe storage section 15 is provided along the Y direction. The pipe storage section 15 is formed in the shelf board body 11 and the protrusion 16, and forms one continuous space. By storing the reinforcing pipe 14 in the pipe storage section 15, the shelf board 10 is reinforced.

[0017] A protrusion 16 is provided at the end of the shelf body 11 in the Y direction. The protrusion 16 protrudes from the end of the shelf body 11 in the Y direction. A lid 19 is provided at the tip of the protrusion 16 on the Y direction side. The lid 19 closes the opening of the pipe storage section 15 formed in the protrusion 16 on the Y direction side. The lid 19 on the Y1 direction side is provided so that the opening of the pipe storage section 15 can be opened and closed. The reinforcing pipe 14 is stored in the pipe storage section 15 through the opening of the pipe storage section 15 on the Y1 direction side. As shown in Figure 3, a recess 18 is formed on the Z2 direction side of the protrusion 16. The recess 18 abuts against the horizontal frame portion 6 of the frame portion 4 when the shelf 10 is attached to the cart 1. In addition, the protrusion 16 is provided with a hook portion 17 extending from the Z1 direction of the protrusion 16 toward the Z2 direction. The hooking portion 17 can be hooked onto the horizontal frame portion 6 of the cart 1. By hooking the hooking portion 17 onto the horizontal frame portion 6, the hooking portion 17 and the horizontal frame portion 6 are engaged with each other, and the shelf board 10 is attached to the cart 1.

[0018] <Grip section> Next, the grip portion 12 provided on the shelf board 10 will be described using Figures 2 to 8. Figure 5 is an enlarged view of the grip portion 121 of the shelf board 10 shown in Figure 2. In the following description of the grip portion 12, when referring to both the grip portions 121 and 122 provided on the shelf board 10, it will be simply referred to as the grip portion 12. When describing each of the grip portions 121 and 122, the grip portion 12 on the Y1 direction side will be referred to as the grip portion 121, and the grip portion 12 on the Y2 direction side will be referred to as the grip portion 122. Figure 6 is an enlarged view of the grip portion 121 of the shelf board 10 shown in Figure 3. Figure 7 is a cross-sectional view taken along line A-A in Figure 5. Figure 8 is a cross-sectional view taken along line B-B in Figure 5. 2 and 3, for ease of viewing, the first reference wall 21 of the first grip portion 20 and the second reference wall 31 of the second grip portion 31 are designated with reference numerals for one of the first grip portions 20 and the second grip portion 30. Reference numerals are omitted for the other walls.

[0019] As shown in Figures 2 and 3, a pair of grip portions 12 for a user to grip the shelf 10 are provided in the Y direction of the shelf body 11. The grip portions 12 are an example of a grip structure in the present application. The number of grip portions 12 is not limited to the example shown. For example, the shelf body 11 may be provided with one grip portion 12, or grip portions 12 may be provided not only in the longitudinal direction of the shelf body 11 but also in the lateral direction (X direction). Furthermore, the grip portions 12 provided in the longitudinal direction of the shelf body 11 may be provided at different positions in the lateral direction.

[0020] Next, the structure of the grip portion 121 will be described with reference to Figures 5 and 6. The pair of grip portions 121, 122 provided on the shelf board 10 have the same structure. Therefore, only one of the grip portions 121 will be described, and the description of the configuration of the other grip portion 122 will be omitted.

[0021] 5 and 6, grip portion 121 includes a first grip portion 20, a second grip portion 30, and a connecting wall 40. Grip portion 121 includes a plurality of first grip portions 20 and second grip portions 30 in the extension direction (X direction).

[0022] The first grips and second grips are alternately arranged in the X direction of the grip portion 121. The spacing between the first grip portions 20 and the spacing between the second grip portions 30 are substantially the same. Note that the spacing between the first grip portions 20 and the spacing between the second grip portions 30 may be different. The grip portion 121 may be configured such that the spacing between the first grip portions 20 and the spacing between the second grip portions 30 in the X direction is shorter, and more first grip portions 20 and second grip portions 30 are alternately arranged. This makes it possible to reduce discomfort in the palm of the user's hand when the user holds the grip portion 121. Note that the grip portion 121 only needs to have at least one pair of first grip portions 20 and second grip portions 30 in the X direction.

[0023] Grip portion 121 is provided so as to bridge between the walls that form handle hole 13. Second grip portion 30 is connected to the walls that form handle hole 13 at both ends of grip portion 121 in the X direction. Note that first grip portion 20 may be connected to the walls that form handle hole 13 at both ends of grip portion 121 in the X direction. Also, first grip portion 20 and second grip portion 30 may be connected to the walls that form handle hole 13 at both ends of grip portion 121 in the X direction. Also, grip portion 121 may be configured such that one end of grip portion 121 in the X direction is connected to shelf board 10 and the other end is not connected to any component of shelf board 10.

[0024] The first grip portion 20 will be described with reference to FIG. 7. The first grip portion 20 has a first reference wall 21, a first connecting wall 22, a first intermediate wall 23, a second connecting wall 24, and a first end wall 25. The first reference wall 21 extends toward the Z2 side. In other words, the first reference wall 21 extends from the placing surface 111 toward the installation surface 112. The first reference wall 21 forms a part of the handle hole 13. The Z2-side end of the first reference wall 21 has a chamfered corner on the Y2 side, forming a curved surface. The first connecting wall 22 extends toward the Y1 side from the Z1-side end of the first reference wall 21.

[0025] The first intermediate wall 23 extends from the Y1-side end of the first connecting wall 22 toward the Z2 direction. The Z2-side end of the first intermediate wall 23 is located closer to the Z2 side than the Z2-side end of the first reference wall 21. The second connecting wall 24 extends from the Z2-side end of the first intermediate wall 23 toward the Y1 direction. The Z2-side surface of the second connecting wall 24 is located closer to the Z2 direction than the Z2-side end of the first reference wall 21. In addition, the Z2-side surface of the second connecting wall 24 is located closer to the placing surface 111 than the installation surface 112 of the shelf board main body 11. The second connecting wall 24 is configured to be spaced apart from the installation surface 112 in the Z direction.

[0026] The first end wall 25 extends in the Z1 direction from the Y1-side end of the second connecting wall 24. The first end wall 25 forms part of the handle hole 13. The Z1-side end of the first end wall 25 is located closer to the Z2 direction than the Z1-side surface of the first connecting wall 22. The Z1-side end of the first end wall 25 has a chamfered corner on the Y1 side to form a curved surface.

[0027] The connection surface 26 connecting the first reference wall 21 and the first connection wall 22 has a curved surface that is convex toward the Y2 direction. It is sufficient that at least the Y2-side surface of the connection surface 26 has a curved surface that is convex toward the Y2 direction. The connection surface 27 connecting the second connection wall 24 and the first end wall 25 has a curved surface that is convex toward the Y1 direction. It is sufficient that at least the Y1-side surface of the connection surface 27 has a curved surface that is convex toward the Y1 direction.

[0028] A first discharge hole 28 is formed in the first grip portion 20. The first discharge hole 28 is a hole that penetrates the first grip portion 20 in the Z direction. The first discharge hole 28 is formed in the first connecting wall 22, the first intermediate wall 23, and a portion of the second connecting wall 24. The first discharge hole 28 is formed in a portion where the first connecting wall 22 and the first intermediate wall 23 are connected, and in a portion where the first intermediate wall 23 and the second connecting wall 24 are connected. By forming the first discharge hole 28 in a portion of the first intermediate wall 23, the area of ​​the first discharge hole 28 can be increased. Note that it is sufficient that the first discharge hole 28 is formed in at least a portion of the first connecting wall 22 and the second connecting wall 24.

[0029] The second grip portion 30 will be described with reference to FIG. 8. The second grip portion 30 has a second reference wall 31, a first continuous wall 32, a second intermediate wall 33, a second continuous wall 34, and a second end wall 35. The second reference wall 31 extends in the Z1 direction. In other words, the second reference wall 31 extends from the installation surface 112 side toward the placement surface 111 side. The second reference wall 31 forms a part of the handle hole 13. The Z1-side end of the second reference wall 31 has a chamfered corner on the Y2 side, forming a curved surface. The shape of a part of the outer periphery formed by the second reference wall 31 of the second grip portion 30 is configured to be the same as the shape of a part of the outer periphery formed by the first reference wall 21 of the first grip portion 20. A part of the second reference wall 31 is located at the same position in the Y direction as a part of the first reference wall 21. In other words, in the X direction, the second reference wall 31 is located on an extension line of the first reference wall 21. That is, the second reference wall 31 is configured so that a part of the Y2-side surface of the second reference wall 31 and a part of the Y2-side surface of the first reference wall 21 can form a continuous wall.

[0030] The first continuous wall 32 extends from the Z2-side end of the second reference wall 31 toward the Y1 direction. The first continuous wall 32 is an inclined wall that is inclined in a direction where its normal direction faces the Y2 direction. The second intermediate wall 33 extends from the Y1-side end of the first continuous wall 32 toward the Z1 direction. The Z1-side end of the second intermediate wall 33 is located closer to the Z1 direction than the Z1-side end of the second reference wall 31. The second intermediate wall 33 is located at the same position in the Y direction as the first intermediate wall 23 of the first grip portion 20. In other words, the second intermediate wall 33 is located on an extension of the first intermediate wall 23 in the X direction.

[0031] The second continuous wall 34 extends further in the Y1 direction from the Y1-side end of the first continuous wall 32. The second end wall 35 extends in the Z1 direction from the Y1-side end of the second continuous wall 34. The second end wall 35 forms part of the handle hole 13. The Z1-side end of the second end wall 35 has a chamfered, curved surface at the Y1-side corner. The Z1-side end of the second end wall 35 is located closer to the Z2 direction than the Z1-side end of the second reference wall 31 and the Z1-side end of the second intermediate wall 33. The second continuous wall 34 and second end wall 35 of the second grip portion 30 are configured to have the same shape as the second connecting wall 24 and first end wall 25 of the first grip portion 20. Furthermore, in the Y direction, the second continuous wall 34 and second end wall 35 are located at the same positions as the second connecting wall 24 and first end wall 25. In other words, in the X direction, the second continuous wall 34 and the second end wall 35 are located on an extension line of the second connecting wall 24 and the first end wall 25. Therefore, the second continuous wall 34 and the second end wall 35 are configured so that they can form a continuous wall together with the second connecting wall 24 and the first end wall 25. The second grip portion 30 is configured so that the first continuous wall 32 and the second continuous wall 34 are located on the installation surface 112 side. Furthermore, the first continuous wall 32 and the second continuous wall 34 are located closer to the placing surface 111 than the installation surface 112. The first continuous wall 32 and the second continuous wall 34 are configured so as to be spaced apart from the installation surface 112 in the Z direction.

[0032] The connection surface 36 connecting the second reference wall 31 and the first continuous wall 32 has a curved surface that is convex toward the Y2 direction. It is sufficient that at least the Y2-side surface of the connection surface 36 has a curved surface that is convex toward the Y2 direction. The connection surface 37 connecting the second continuous wall 34 and the second end wall 35 has a curved surface that is convex toward the Y1 direction. It is sufficient that at least the Y1-side surface of the connection surface 37 has a curved surface that is convex toward the Y1 direction.

[0033] A second discharge hole 38 is formed in the second grip portion 30. The second discharge hole 38 is a hole that penetrates the second grip portion 30 in the Z direction. The second discharge hole 38 is formed in parts of the first continuous wall 32, the second intermediate wall 33, and the second continuous wall 34. The second discharge hole 38 is formed in the parts where the first continuous wall 32, the second intermediate wall 33, and the second continuous wall 34 connect with each other. By forming the second discharge hole 38 in part of the second intermediate wall 33, the area of ​​the second discharge hole 38 can be increased. Note that it is sufficient that the second discharge hole 38 is formed in at least parts of the first continuous wall 32 and the second continuous wall 34.

[0034] As shown in FIGS. 5 and 6, a connecting wall 40 is provided between the first grip portion 20 and the second grip portion 30. The connecting wall 40 extends in the Y direction. The connecting wall 40 has a first connecting wall 43 and a second connecting wall 41. The first connecting wall 43 is provided on the Y2 side of the connecting wall 40. The second connecting wall 41 is provided on the Y1 side of the connecting wall 40. The second connecting wall 41 extends continuously from the Y1-side end of the first connecting wall 43 toward the Y1 side. The first connecting wall 43 and the second connecting wall 41 are formed as a continuous wall in the Y direction. In other words, the second connecting wall 41 is located on an extension of the first connecting wall 43 in the Y direction.

[0035] As shown in FIGS. 7 and 8 , the first connecting wall 43 connects the first reference wall 21, the first connecting wall 22, and the first intermediate wall 23 of the first grip unit 20 on one side in the X direction. The first connecting wall 43 connects the second reference wall 31, the first continuous wall 32, and the second intermediate wall 33 of the second grip unit 30 on the other side in the X direction. The tip portion of the first connecting wall 43 on the Y2 side has a curved surface that is convex toward the Y2 direction. The tip of the Y2 side of the first connecting wall 43 is positioned so as to be coincident with the Y2-side surface of the first reference wall 21 of the first grip unit 20 and the Y2-side surface of the second reference wall 31 of the second grip unit 30 in the Y direction. The end of the first connecting wall 43 on the Y1 side is positioned so as to be coincident with the first intermediate wall 23 of the first grip unit 20 and the second intermediate wall 33 of the second grip unit 30. That is, the first connecting wall 43 extends in the Y direction from the first reference wall 21 and the second reference wall 31 side toward the first intermediate wall 23 and the second intermediate wall 33 side.

[0036] The outer periphery of the first connecting wall 43 is configured so that the outer periphery of the portion of the first connecting wall 43 corresponding to the first reference wall 21 and the first connecting wall 22 is the same as the outer periphery formed by the first reference wall 21 and the first connecting wall 22 of the first grip portion 20. Therefore, the outer periphery 45 on the Z1 side of the first connecting wall 43 is a curved surface with the same curvature as the curved surface formed by the connecting surface 26 of the first grip portion 20. Furthermore, the outer periphery of the first connecting wall 43 is configured so that the outer periphery of the portion of the first connecting wall 43 corresponding to the second reference wall 31 and the first continuous wall 32 is the same as the outer periphery formed by the second reference wall 31 and the first continuous wall 32 of the second grip portion 30. Therefore, the outer periphery on the Z2 side of the first connecting wall 43 has a curved surface with the same curvature as the curved surface formed by the connection surface 36 of the second grip portion 30, and the outer periphery on the Z2 side of the first connecting wall 43 has an inclined surface 44 formed with the same inclination as the inclination formed by the first continuous wall 32.

[0037] The first connecting wall 43 functions as a rib provided in the space formed by the first reference wall 21, the first connecting wall 22, and the first intermediate wall 23 of the first grip portion 20. The first connecting wall 43 also functions as a rib provided in the space formed by the second reference wall 31, the first continuous wall 32, and the second intermediate wall 33 of the second grip portion 30.

[0038] The second connecting wall 41 is connected to the first intermediate wall 23, the second connecting wall 24, and the first end wall 25 of the first grip section 20 on one side in the X direction. The second connecting wall 41 is connected to the second intermediate wall 33, the second continuous wall 34, and the second end wall 35 of the second grip section 30 on the other side in the X direction. The tip portion of the second connecting wall 41 on the Y1 side has a curved surface that is convex toward the Y1 direction. The tip of the Y1 side of the second connecting wall 41 is positioned so as to be coincident with the Y1-side surface of the first end wall 25 of the first grip section 20 and the Y1-side surface of the second end wall 35 of the second grip section 30 in the Y direction. The end portion of the second connecting wall 41 on the Y2 side is positioned so as to be coincident with the first intermediate wall 23 of the first grip section 20 and the second intermediate wall 33 of the second grip section 30.

[0039] The outer periphery of the second connecting wall 41 is configured so that the outer periphery of the portion of the second connecting wall 41 corresponding to the second connecting wall 24 and the first end wall 25 is the same as the outer periphery formed by the second connecting wall 24 and the first end wall 25 of the first grip portion 20. In other words, the outer periphery of the second connecting wall 41 is configured so that the outer periphery of the portion of the second connecting wall 41 corresponding to the second continuous wall 34 and the second end wall 35 is the same as the outer periphery formed by the second continuous wall 34 and the second end wall 35 of the second grip portion 30. Therefore, the outer periphery of the second connecting wall 41 on the Z2 side has a curved surface with the same curvature as the connection surface 27 of the first grip portion 20 and the connection surface 37 of the second grip portion 30.

[0040] An inclined surface 42 is formed on the outer periphery on the Z1 side of the second connecting wall 41. The inclined surface 42 is formed on the second connecting wall 41 in correspondence with the position connecting the tip of the first intermediate wall 23 of the first grip portion 20 to the tip of the first end wall 25 (the position connecting the Z1-side surface of the first connecting wall 22 of the first grip portion 20 to the tip of the first end wall 25). In other words, the inclined surface 42 is formed on the second connecting wall 41 in correspondence with the position connecting the tip of the second intermediate wall 33 of the second grip portion 30 to the tip of the second end wall 35. The inclined surface 42 is configured to have the same angle of inclination as the inclination of the first continuous wall 32 of the second grip portion 30.

[0041] The second connecting wall 41 functions as a rib provided in the space formed by the first intermediate wall 23, the second connecting wall 24, and the first end wall 25 of the first grip portion 20. The second connecting wall 41 also functions as a rib provided in the space formed by the second intermediate wall 33, the second continuous wall 34, and the second end wall 35 of the second grip portion 30.

[0042] The second connecting wall 41 has a shape that matches the outer periphery formed by the second connecting wall 24 and first end wall 25 of the first grip portion 20 and the outer periphery formed by the second continuous wall 34 and second end wall 35 of the second grip portion 30. Therefore, as shown in Fig. 6, the second connecting wall 24, first end wall 25, second continuous wall 34, second end wall 35, and part of the second connecting wall 41 of the grip portion 121 are formed as a smooth, continuous wall with no steps in the X direction. In addition, part of the first reference wall 21, part of the second reference wall 31, and part of the first connecting wall 43 are formed as a smooth, continuous wall with no steps in the X direction.

[0043] Next, the relationship between the pair of grip portions 121, 122 provided on the shelf board 10 will be described.

[0044] As shown in FIGS. 2 to 4, the first reference wall 21 of the first grip portion 20 and the second reference wall 31 of the second grip portion 30 in the grip portion 121 are formed on the Y2 side of the shelf body 11. In addition, the first reference wall 21 of the first grip portion 20 and the second reference wall 31 of the second grip portion 30 in the grip portion 122 are formed on the Y1 side of the shelf body 11. In other words, the first reference wall 21 and the second reference wall 31 in the grip portions 121, 122 are formed so as to be located toward the center of the shelf body 11. The first reference wall 21 and the second reference wall 31 of the grip portion 121 face the first reference wall 21 and the second reference wall 31 of the grip portion 122.

[0045] In the grip portion 122, the first end wall 25 of the first grip portion 20 and the second end wall 35 of the second grip portion 30 are formed on the Y2 side. That is, the first end wall 25 and the second end wall 35 of the grip portion 122 are formed to face outward from the shelf body 11. Also, in the grip portion 122, the second connecting wall 24 of the first grip portion 20 and the first continuous wall 32 and second continuous wall 34 of the second grip portion 30 are formed on the Z2 side. That is, in the grip portion 122, the second connecting wall 24, the first continuous wall 32 and the second continuous wall 34 are formed on the installation surface 112 side.

[0046] <Grip section> An example of how the user holds the grip portion 12 will be described.

[0047] For example, when a user holds the shelf board 10 in a state where no article is placed on the placement surface 111 (second state), such as when the shelf board 10 is leaned upright, the user may hold the shelf board 10 with one hand. In this case, it is assumed that the user grasps the grip portion 121 from the direction of arrow R2 shown in Figures 7 and 8. That is, the user grasps the grip portion 121 from the center side of the shelf board 10. When the user inserts their hand into the handle hole 13 from the direction of arrow R2 to grasp the grip portion 121, the user's fingers come into contact with the connection surfaces 26, 27 of the first grip portion 20 and the connection surfaces 36, 37 of the second grip portion 30. Furthermore, when gripping the entire grip portion 121, the user's fingers come into contact with the first reference wall 21, the first connecting wall 22, the second connecting wall 24, the first end wall 25, and the connecting surfaces 26 and 27 of the first grip portion 20, and the second reference wall 31, the first continuous wall 32, the second continuous wall 34, the second end wall 35, and the connecting surfaces 36 and 37 of the second grip portion 30. The same applies when gripping the grip portion 122 from the center side of the shelf board 10.

[0048] For example, when a user holds the shelf board 10 with an article placed on the placement surface 111 (the first state described above), the user holds the pair of grip portions 121, 122 with both hands. At this time, it is assumed that the user holds the grip portions 121, 122 from the direction of arrow R1 shown in Figures 4, 7, and 8. In other words, the user holds the pair of grip portions 121, 122 from the outside of the shelf board 10. Even if the user inserts their hand into the handle hole 13 from the direction of arrow R1 to hold the grip portions 121, 122, the user's fingers will come into contact with the connection surfaces 26, 27 of the first grip portion 20 and the connection surfaces 36, 37 of the second grip portion 30.

[0049] Furthermore, when gripping the grip portions 121, 122 in their entirety, the user's fingers come into contact with the first reference wall 21, the first connecting wall 22, the second connecting wall 24, the first end wall 25, and the connecting surfaces 26, 27 of the first grip portion 20, and the second reference wall 31, the first continuous wall 32, the second continuous wall 34, the second end wall 35, and the connecting surfaces 36, 37 of the second grip portion 30. The above-described gripping of the grip portions 121, 122 is also the same when no article is placed on the placement surface 111 (for example, in the second state described above). For example, when the shelf 10 is placed on the bottom 2 of the cart 1 or in a storage area, the user may grip the shelf with both hands.

[0050] <Effects of this embodiment> According to the above configuration, the connection surfaces 26, 27 of the first grip portion 20 and the connection surfaces 36, 37 of the second grip portion 30 have convex curved surfaces. When a user grips the grip portion 12, the user's hand comes into contact with the connection surfaces 26, 27, 36, 37 of the grip portion 12. This makes it less likely that a portion of the grip portion 12 will dig into the user's hand, reducing the user's discomfort. This makes it possible to provide a grip structure that is less likely to cause discomfort to the user.

[0051] The first grip portions 20 and the second grip portions 30 are alternately arranged in the X direction. Therefore, even if a user grips the grip portion 12 from the directions of arrows R1 and R2 shown in FIGS. 7 and 8 , one of the walls of the first grip portion 20 and the second grip portion 30 will come into contact with the user's hand. Specifically, the first continuous wall 32 of the second grip portion 30 reduces the likelihood that the tip of the first reference wall 21 of the first grip portion 20 will dig into the user's fingers. The first connecting wall 22 of the first grip portion 20 reduces the likelihood that the tip of the second reference wall 31 and the tip of the second intermediate wall 33 of the second grip portion 30 will dig into the user's fingers. The provision of the connecting wall 40 also reduces the likelihood that the tip of the first end wall 25 of the first grip portion 20 and the tip of the second end wall 35 of the second grip portion 30 will dig into the user's fingers. This provides a grip structure that is less likely to cause discomfort to the user.

[0052] According to the above configuration, the first reference wall 21 of the first grip portion 20 and the second reference wall 31 of the second grip portion 30 are provided on the center side of the shelf board 10. For example, when gripping a shelf board 10 on which no objects are placed, such as a shelf board 10 that is leaning upright, the user grips the grip portion 12 with one hand from the center side of the shelf board 10. At this time, the fingers of the user come into contact with the connecting surfaces 26, 27 of the first grip portion 20 and the connecting surfaces 36, 37 of the second grip portion 30. Because the connecting surfaces 26, 27, 36, 37 are formed as curved surfaces, the user is less likely to feel uncomfortable when gripping the grip portion 12.

[0053] According to the above configuration, the first reference wall 21 and the second reference wall 31 of one of the pair of grip portions 121, 122 face the first reference wall 21 and the second reference wall 31 of the other grip portion 122. For example, when holding the shelf board 10 on which an item is placed, a user grips the pair of grip portions 121, 122 with both hands from the outside of the shelf board 10. At this time, the curved connecting surfaces 26, 27, 36, and 37 come into contact with the user's fingers. In addition, the pair of grip portions 121, 122 are provided symmetrically. Therefore, when the user grips the pair of grip portions 121, 122, both hands of the user come into contact with the portions of the pair of grip portions 121, 122 that correspond to the same wall. This makes it possible to reduce discomfort to the user even when the user grips the pair of grip portions 121, 122 with both hands.

[0054] According to the above configuration, the first grip portion 20 and the second grip portion 30 are formed with a first drain hole 28 and a second drain hole 38. By forming the first drain hole 28 in the first grip portion 20, it is possible to prevent rainwater and other liquids and dust from accumulating in the first grip portion 20 in the space formed by the first reference wall 21, the first connecting wall 22, and the first intermediate wall 23, and in the space formed by the first intermediate wall 23, the second connecting wall 24, and the first end wall 25. Furthermore, by forming the second drain hole 38 in the second grip portion 30, it is possible to prevent rainwater and other liquids and dust from accumulating in the second grip portion 30 in the space formed by the second reference wall 31, the first continuous wall 32, and the second intermediate wall 33, and in the space formed by the second intermediate wall 33, the second continuous wall 34, and the second end wall 35.

[0055] The area of ​​the first drain hole 28 can be increased by forming the first drain hole 28 in a portion of the first intermediate wall 23. The area of ​​the second drain hole 38 can be increased by forming the second drain hole 38 in a portion of the second intermediate wall 33. This more effectively prevents liquids such as rainwater and dust from accumulating in the first grip portion 20 and the second grip portion 30.

[0056] Furthermore, the connecting surface 26 of the first grip portion 20 has a curved surface that is convex toward the Y2 side. Therefore, when the shelf 10 is leaned against the surface, liquids and the like are guided by the curved surface and drained to the outside of the grip portion 12. Furthermore, the connecting surface 36 of the second grip portion 30 has a curved surface that is convex toward the Y2 side, and the connecting surfaces 27 of the first grip portion 20 and the second grip portion 30 have curved surfaces that are convex toward the Y1 side. Therefore, when the shelf 10 is placed on an installation surface, liquids and the like are guided by the curved surfaces and drained to the outside of the grip portion 12. This prevents liquids such as rainwater from accumulating on the first grip portion 20 and the second grip portion 30. Note that with the above configuration, the above-described effects can be further enhanced when the installation surface 112 of the shelf 10 is placed on an installation surface.

[0057] According to the above configuration, a connecting wall 40 extending in the Y direction is provided between the first grip portion 20 and the second grip portion 30. This prevents the user's fingers from being accidentally inserted into the space (recess) formed in the first grip portion 20 and the second grip portion 30. The user's fingers are guided by the connecting wall 40, allowing the user to grasp the grip portion 12. This makes it less likely that the user will feel uncomfortable.

[0058] According to the above configuration, the grip portion 12 is provided on the placing surface 111 side of the shelf board 10. In other words, the Z2 side surface of the second connecting wall 24 of the first grip portion 20, the Z2 side surface of the first continuous wall 32 of the second grip portion 30, and the Z2 side surface of the second continuous wall 34 of the second grip portion 30 are located on the Z1 direction side of the installation surface 112 of the shelf board main body 11. Therefore, even when the shelf board 10 is installed on the installation surface, a gap is formed between the installation surface and the grip portion 12. This allows the user to easily hold the grip portion 12.

[0059] Furthermore, the first reference wall 21 is oriented from the placing surface 111 toward the installation surface 112. Therefore, even when a user holds the shelf board 10 with one hand or both hands, the connecting surfaces 26, 27, 36, and 37 come into contact with the user's hands. This makes it possible to reduce the user's discomfort even when the user holds the pair of grip portions 121 and 122 with both hands.

[0060] [Other embodiments] In the above embodiment, the second connecting wall 24 of the first grip portion 20 and the first and second continuous walls 32 and 34 of the second grip portion 30 are located on the installation surface 112 side. However, the present invention is not limited to this. For example, the first reference wall 21 of the first grip and the second reference wall 31 of the second grip of the grip portion 12 may be located on the installation surface 112 side. Alternatively, the first end wall 25 of the first grip portion 20 and the second end wall 35 of the second grip portion 30 may be located on the installation surface 112 side. In the case of a transport tool (e.g., a cart, a dolly, or a pallet) provided with roller units (casters, for example), the surface of the roller units (casters) attached to the transport tool that abuts against the installation surface corresponds to the installation surface. Also, the floor or the ground corresponds to the installation surface.

[0061] In the above-described embodiment, the connecting surfaces 26, 27 of the first grip portion 20 and the connecting surfaces 36, 37 of the second grip portion 30 are configured as curved surfaces, but this is not limited thereto. The connecting surfaces 26, 27, 36, 37 may be configured as inclined surfaces. In this case, the connecting surface 26 is formed as an inclined surface whose normal direction faces the Z1 direction, the connecting surface 36 is formed as an inclined surface whose normal direction faces the Z2 direction, and the connecting surfaces 27, 37 are formed as inclined surfaces whose normal direction faces the Z2 direction.

[0062] In the above-described embodiment, the Y2-side tip portion of the first connecting wall 43 and the Y1-side tip portion of the second connecting wall 41 have curved surfaces, but this is not limiting. The tips of the first connecting wall 43 and the second connecting wall 41 may have inclined surfaces. In this case, the tip of the first connecting wall 43 has an inclined surface whose normal direction faces the Y2 direction, and the tip of the second connecting wall 41 has an inclined surface whose normal direction faces the Y1 direction. More specifically, the Z1-side tip of the first connecting wall 43 has an inclined surface whose normal direction faces the Y2 direction and faces the Z1 direction, and the Z2-side tip of the first connecting wall 43 has an inclined surface whose normal direction faces the Y2 direction and faces the Z2 direction. An inclined surface is formed on the Z1-side tip of the second connecting wall 41, the normal of which is in the Y1 direction and faces the Z1 direction, and an inclined surface is formed on the Z2-side tip of the second connecting wall 41, the normal of which is in the Y1 direction and faces the Z2 direction. Note that the Y2-side tip portion of the first connecting wall 43 and the Y1-side tip portion of the second connecting wall 41 may have a configuration that combines a curved surface and an inclined surface.

[0063] In the above-described embodiment, ribs may be provided in the space formed by the first reference wall 21, the first connecting wall 22, and the first intermediate wall 23 of the first grip portion 20, and in the space formed by the first intermediate wall 23, the second connecting wall 24, and the first end wall 25. Similarly, in the second grip portion 30, ribs may be provided in the space formed by the second reference wall 31, the first continuous wall 32, and the second intermediate wall 33, and in the space formed by the second intermediate wall 33, the second continuous wall 34, and the second end wall 35.

[0064] In this application, a conveyance tool refers to a tool used to move an item or the like to another location. In addition to a cart, examples of such a tool include a dolly, a pallet, a container, and a toolbox. The grip structure of this application may be provided as a part of the conveyance tool. The grip structure of this application is used as a grip portion for a user to grasp and move the conveyance tool or to open a lid or the like of the conveyance tool.

[0065] [Additional Notes] The connection surfaces 26, 27, 36, and 37 described in the above-described embodiment refer to surfaces located at the boundary between the walls to be connected. The connection surface 26 of the first grip portion 20 is the surface located at the boundary between the first reference wall 21 and the first connecting wall 22 to be connected, and the connection surface 27 is the surface located at the boundary between the second connecting wall 24 and the first end wall 25 to be connected. The connection surface 36 of the second grip portion 30 is the surface located at the boundary between the second reference wall 31 and the first continuous wall 32 to be connected, and the connection surface 37 is the surface located at the boundary between the second continuous wall 34 and the second end wall 35.

[0066] The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the claims. Embodiments obtained by appropriately combining the technical means disclosed in different embodiments are also included in the technical scope of the present invention. [Explanation of symbols]

[0067] 20 first grip portion, 21 first reference wall, 22 first connecting wall, 23 first intermediate wall, 24 second connecting wall, 25 first end wall, 26, 27 connecting surface, 28 first discharge hole, 30 second grip portion, 31 second reference wall, 32 first continuous wall, 33 second intermediate wall, 34 second continuous wall, 35 second end wall, 36, 37 connecting surface, 38 second discharge hole, 40 connecting wall, 41 second connecting wall, 43 first connecting wall

Claims

1. A grip structure provided on a carrier, The grip structure comprises: a first reference wall extending in a first direction; a first connection wall extending from the first reference wall toward a third direction perpendicular to the first direction on a second direction side opposite to the first direction; a first intermediate wall extending from the first connecting wall toward the first direction side on the third direction side; a second connecting wall extending from the first intermediate wall toward the third direction side on the first direction side; a first grip portion having a first end wall extending from the second connecting wall toward the second direction side on the third direction side; a second reference wall extending toward the second direction; a first continuous wall extending from the second reference wall toward the third direction side on the first direction side; a second intermediate wall extending from the first continuous wall toward the second direction side on the third direction side; a second continuous wall extending from the first continuous wall toward the third direction side on the third direction side; a second grip portion having a second end wall extending from the second continuous wall toward the second direction side on the third direction side, The first grip portions and the second grip portions are alternately arranged along a fifth direction that is a direction perpendicular to the first direction and the third direction, a connection surface connecting the first reference wall and the first connection wall of the first grip portion is a curved surface that is convex toward the second direction side or an inclined surface whose normal direction is toward a fourth direction side opposite to the third direction, a connection surface connecting the second reference wall of the second grip portion and the first continuous wall is a curved surface that is convex toward the first direction side or an inclined surface whose normal direction is toward the fourth direction side, A connection surface connecting the second connecting wall and the first end wall of the first grip portion and a connection surface connecting the second continuous wall and the second end wall of the second grip portion have a curved surface that is convex toward the first direction side or an inclined surface whose normal direction is toward the third direction side. A grip structure characterized by:

2. a fourth direction opposite to the third direction is a direction toward the center of the carrier; The grip structure according to claim 1 , wherein the first reference wall and the second reference wall are located closer to the center of the carrier than the first end wall and the second end wall.

3. The carrier is provided with a pair of the grip structures, The grip structure described in claim 2, characterized in that the pair of grip structures is provided on the conveying device so that the first reference wall and the second reference wall of one of the pair of grip structures face the first reference wall and the second reference wall of the other of the pair of grip structures.

4. The first grip portion includes a first discharge hole penetrating at least the first connecting wall and the second connecting wall toward the second direction. The second grip portion further includes a second discharge hole penetrating at least the first continuous wall and the second continuous wall toward the second direction. The grip structure according to any one of claims 1 to 3.

5. a connecting wall provided between the first grip portion and the second grip portion, the connecting wall connecting to the first grip portion on one side of the fifth direction or a sixth direction side opposite to the fifth direction, and connecting to the second grip portion on the other side of the fifth direction or the sixth direction side, A grip structure described in any one of claims 1 to 4, characterized in that the tip portion of the connecting wall on the third direction side has a curved surface that is convex toward the third direction side or an inclined surface whose normal direction is toward the third direction side, and the tip portion of the connecting wall on the fourth direction side has a curved surface that is convex toward the fourth direction side or an inclined surface whose normal direction is toward the fourth direction side.

6. the conveying tool has a placement surface on which an article is placed, and an installation surface opposite to the placement surface and capable of contacting an installation surface on which the conveying tool is installed, The grip structure described in any one of claims 1 to 5, characterized in that the grip structure is positioned closer to the placement surface than the installation surface, and one of (i) the first direction, (ii) the third direction, and (iii) the fourth direction is a direction from the placement surface toward the installation surface.

7. A shelf board equipped with the grip structure according to claim 3, The shelf is characterized in that it can be attached to, installed on, or stored in a conveying device in a first state in which an item can be placed on the shelf relative to the conveying device, and in a second state in which the shelf is different from the first state relative to the conveying device.

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