Long material rack

Abstract

To provide a long material rack in which a receiving part can be easily drawn out even with a human power.SOLUTION: A long material rack is provided with a support pillar 2 provided upright, and an arm part 3 is provided so as to protrude outward with respect to the support pillar 2. A tip part of the arm part 3 is provided with the other end part of a support arm 5 rotatable around a rotational axis 5b with an axis in a vertical direction. A receiving part 7 is rotatably provided on one end part of the support arm 5. The support arm 5 can rotate in both a clockwise direction A and a counterclockwise direction B from a state of being positioned on a straight line of an axis core of the arm part 3. In a storage state of the receiving part 7, a drawing-in angle α of the support arm 5 to an orthogonal axis of the axis core of the arm part 3 is set to be smaller than 45°.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to a long material rack. [Background technology]

[0002] 2. Description of the Related Art When storing long materials such as pipes in factories or logistics centers, expandable long material racks with swing arms are used to reduce the space required for storage shelves and to improve workability when removing and loading the long materials.

[0003] Conventionally, multiple support arms are provided on a support column in the left-right direction so as to be rotatable, and a receiving part for storing long materials is provided rotatably at the tip of the support arm, so that the support arm can rotate within a range of 90°. Also, a long material rack is known in which multiple receiving parts located in the left-right direction are connected with a connecting rod, so that the multiple receiving parts can be linked and simultaneously put into a stored state and pulled out state (for example, see Patent Documents 1 and 2).

[0004] In this long material rack, there is a limit to how large the receiving part can be made to avoid interference with the support posts and increase the number of long materials that can be stored, making it difficult to make the long material rack larger.

[0005] Therefore, in order to avoid interference with the support even if the receiving part is made larger, a long material rack has been proposed in which an arm protrudes horizontally outward from the support and a support arm is provided for this arm (see Patent Document 3). [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Jpn. Jpn. Published No. 54-38269 [Patent Document 2] Jpn. Jpn. Published No. 57-1794 [Patent Document 3] German Utility Model Application No. 202012102130 Summary of the Invention [Problem to be solved by the invention]

[0007] However, in the long material rack described in Patent Document 3 above, the support arm can be rotated from an extended state in which the angle with respect to the axis of the arm is 180°, i.e., in a straight line with the axis of the arm, to a stored state in which the angle is 0°.

[0008] Therefore, in order to pull out the receiving part from its stored state, a force is also required to move the receiving part sideways, and when the long member is stored in the receiving part, the receiving part is very heavy to rotate by hand, resulting in a problem of poor workability.

[0009] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a long material rack whose receiving portion can be easily pulled out even by human force. [Means for solving the problem]

[0010] In order to solve the above problems, the present invention provides a support structure having an upright support and an arm portion protruding outward from the support, The other end of the support arm is provided at the tip of the arm so as to be rotatable about a rotation axis having an axis in the vertical direction, A receiving portion is rotatably provided at one end of the support arm, The support arm can be rotated in either a clockwise or counterclockwise direction from a state where the support arm is positioned on a straight line of the axis of the arm portion, The present invention is characterized in that, when the receiving portion is in a stored state, the retraction angle of the axis of the arm portion of the support arm with respect to the perpendicular axis is set to be smaller than 45 degrees.

[0011] The arm portions may also be provided penetrating the support pillar so as to protrude in both side directions.

[0012] Also, a structural unit having at least the support pillar, the arm portion, and the support arm may be formed, and a plurality of such structural units may be disposed. Effect of the Invention

[0013] In the present invention, the support arm can be rotated in either a clockwise or counterclockwise direction from a state in which it is positioned on a straight line with the axis of the arm, and when the receiving part is in the stored position, the retraction angle of the support arm relative to the perpendicular axis of the axis of the arm is set to less than 45 degrees, so that the receiving part can be pulled out or stored with less force than with the long material rack described in Patent Document 3 above. [Brief description of the drawings]

[0014] [Figure 1] FIG. 2 is a front view of a long material rack according to an embodiment of the present invention. [Diagram 2] Cross-sectional view of Fig. 1. [Diagram 3] 2 is a left side view for explaining a method of loading a long material into the long material rack in FIG. 1. [Figure 4] Enlarged view of the main part of Figure 2 [Diagram 5] FIG. 2 is a longitudinal sectional view of the support arm, arm portion, and receiving portion of FIG. 1 . DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a long material rack according to the present invention will be described with reference to the examples shown in the drawings.

[0016] FIG. 1 is a front view of a long material rack 1 according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of FIG. 1, and FIG. 3 is a left side view of FIG.

[0017] As shown in Figures 1 and 2, the long material rack 1 has multiple vertically erected support columns 2, which are arranged so that their centers are aligned in a straight line. In this embodiment, the support columns 2 are made of square pipes, but they can be of any cross-sectional shape and structure as long as a certain level of strength is ensured.

[0018] A leg 2a is provided at the lower part of the support 2, and its axis is located in the front-rear direction perpendicular to the axis of the support 2. The leg 2a is fixed to the floor or the like by an anchor bolt 2b.

[0019] A plurality of through holes 2c penetrating in the front-rear direction are formed on the top and bottom of the support 2. As shown in Figures 2 and 4, an arm 3 is inserted into each through hole 2c and fixed to the support 2 by welding. As a result, the arm 3 is fixed to the support 2 so as to protrude in both directions. As shown in Figures 1 and 3, a plurality of arms 3 are fixed to each support 2 in the up-down direction.

[0020] The other end 5a of the support arm 5 is connected to the tip 3a, which is one end located on the outer side in the axial direction of each arm portion 3, so as to be rotatable around a rotation axis 5b provided in the vertical direction. In this embodiment, a pivot shaft is used as the rotation axis 5b. It is more preferable to interpose a bearing such as a ball bearing around this pivot shaft. Note that, as long as the support arm 5 can be rotated around the rotation axis 5b, any structure other than the above structure can be used.

[0021] Furthermore, the support arm 5 may be rotated with respect to each arm portion 3 using a rotation assist device such as a motor or an actuator.

[0022] The receiving part 7 is connected to one end 5c, which is the tip of the support arm 5, so as to be rotatable about a rotation axis 7a provided in the vertical direction. The receiving part 7 is formed in a U-shape that opens upward. The shape of the receiving part 7 can be formed into any shape as long as it can store multiple long materials 10.

[0023] An operating handle 8 is fixed to the side surface of the receiving portion 7.

[0024] A fixed receiving portion 9 is fixed to the upper portion of the support 2, and a long material 10 can also be placed on the upper portions of the fixed receiving portions 9, 9, 9.

[0025] One structural unit 11 is made up of the support pillar 2, arm 3, support arm 5, receiving portion 7, and fixed receiving portion 9. The long material rack 1 is made up of multiple structural units 11 arranged horizontally depending on the size of the long material rack 1 to be formed. In this embodiment, there are three structural units 11, and each structural unit 11 is configured with the same height and number of arms. The spacing between adjacent structural units 11, 11 is determined appropriately depending on the weight of the long material 10 to be stored, etc.

[0026] In the long material rack 1 to be constructed, the height and number of arms 3 of each constituent unit 11 may all be the same, or constituent units 11 of different heights and numbers of arms 3 may be mixed together.

[0027] As shown in FIG. 5, a connecting member 13 is fixed to the outer surface of the receiving parts 7, 7, 7 located at the same height, facing the support pillar 2, and the receiving parts 7, 7, 7 located at the same height are connected by the connecting member 13.

[0028] The support arm 5 can rotate in either a clockwise direction A or a counterclockwise direction B as viewed from above from the position where the receiving portion 7 is pulled out so that the axis of the support arm 5 is in a straight line with the axis XX of the arm portion 3, as shown by the solid line in Figure 5.

[0029] When the support arm 5 is rotated clockwise A or counterclockwise from the state shown by the solid line in Fig. 5, the connecting member 13 comes into contact with the side surface of the support column 2 as shown by the dotted line in Fig. 5, and the support arm 5 is positioned so that it cannot rotate any further. This state is the stored state of the receiving part 7.

[0030] In the stored state of the receiving portion 7, on the movable plane of the support arm 5, the retraction angle α of the axis YY of the support arm 5 with respect to the perpendicular axis ZZ of the axis XX of the arm portion 3 of the support arm 5 is set to be greater than 0 degrees and smaller than 45 degrees. In this embodiment, it is set to 25 degrees, and the movable range β of the support arm 5 is set to 230 degrees.

[0031] By setting the retraction angle α of the arm portion 3 of the support arm 5 to be greater than 0 degrees and less than 45 degrees, the force required for moving the receiving portion 7 laterally, which is required for the long material rack described in Patent Document 3, is no longer necessary, and the receiving portion 7 can be rotated with a small force. As a result, the long material rack 1 of the present invention allows the receiving portion 7 to be easily pulled out and stored even by hand, improving workability.

[0032] When all the receiving parts 7 are stored, the operating handle 8 of any one of the receiving parts 7, 7, 7 to be used is pulled, thereby rotating the support arm 5 and drawing out the receiving part 7 from the stored state of the receiving part 7. At this time, the other receiving parts 7, 7 located at the same height in the left and right directions and connected by the connecting member 13 are also linked, and only the receiving part 7, 7, 7 of the tier to be used (the tier at the back of the 3rd tier from the bottom in Figs. 1 to 3) is drawn out, as shown in Fig. 3.

[0033] The pulled-out state of the receiving portion 7 may be held in that position by a stopper or the like (not shown).

[0034] Next, as shown in Fig. 3, a crane or the like can be used to carry multiple long materials 10 across the receiving sections 7, 7, 7, and to carry them out for use. The long materials 10 may also be carried in and out manually, one or more at a time.

[0035] By making it possible to rotate the support arm 5 in a clockwise direction A or a counterclockwise direction from the state shown by the solid line in Figure 5, it is possible to increase the degree of freedom of operation when loading and unloading the long material 10. [Explanation of symbols]

[0036] 1 Long material rack 2 pillars 3 Arms 5b Rotation axis 5 Support Arm 7 Receiving part

Claims

1. A vertical support is provided, and an arm portion is provided to protrude outward from the support, The other end of the support arm is provided at the tip of the arm so as to be rotatable about a rotation axis having an axis in the vertical direction, A receiving portion is rotatably provided at one end of the support arm, The support arm can be rotated in either a clockwise or counterclockwise direction from a state where the support arm is positioned on a straight line of the axis of the arm portion, A long material rack, characterized in that, when the receiving portion is in a stored state, a retraction angle of the axis of the arm portion of the support arm relative to an orthogonal axis is set to be smaller than 45 degrees.

2. 2. The long material rack according to claim 1, wherein the arms are provided penetrating the support posts so as to protrude in both sides.

3. 3. The long material rack according to claim 2, wherein a structural unit having at least said support pillar, said arm portion and said support arm is formed, and a plurality of said structural units are arranged.

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