Resin foot material

Abstract

The present invention provides a resin leg member that reduces wobbling relative to the object to which it is attached, and the increase in assembly man-hours due to installation, as well as a table equipped with the resin leg member. [Solution] The resin leg member comprises a resin leg body and a metal nut with a base provided on the upper end 30B of the leg body. The nut with a base 32 has a nut body 320 configured to screw onto the bolt shaft of the top plate, and a flat portion 322 that makes surface contact with the upper end 30B and whose normality is the depth direction of the screw hole of the nut body 320.

Description

Technical Field

[0006] , , , ,

[0001] The present disclosure relates to a leg member that constitutes a table, for example, a resin leg member.

Background Art

[0002] As shown in FIGS. 1 and 2 of Patent Document 1, a table assembled by screwing a screw protruding from the back surface of a tabletop and a screw receiver provided at the upper end of a leg member is known. Further, for example, in order to reduce the weight, it is known to use resin as the material of the leg member.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the configuration shown in Patent Document 1, when the material of the leg member is resin, the strength of the resin is lower than that of metal or the like, so the leg member is likely to wobble. That is, the lower end of the leg member is likely to rotate with the screw receiver provided at the upper end of the leg member as a fulcrum. Although wobbling can be suppressed by providing a link mechanism that connects the leg member and the tabletop, the number of assembly steps increases.

[0005] Therefore, an object of the present disclosure is to provide a resin leg member that suppresses wobbling with respect to an attachment target and an increase in the number of assembly steps due to attachment, and a table including the resin leg member.

Means for Solving the Problems

[0006] (1) The resin leg member of the present disclosure comprises a resin leg body and a metal screw receiver provided at the first end of the leg body. The screw receiver has a screw receiver body configured to screw into a screw on the mounting side of the mounting object, and a planar portion that makes surface contact with the first end and whose normality is the depth direction of the screw hole of the screw receiver body.

[0007] In the resin leg member described in (1) above, even if an external force is applied to the leg member that causes it to rotate with the screw receiver body as the pivot point, the force that deforms the first end of the resin leg member is distributed between the area around the screw receiver body at the first end and the area around the first end that is in surface contact with the flat surface. As a result, deformation of the first end of the leg member is suppressed compared to the configuration of the conventional technology which does not have a flat surface that distributes the deforming force. This makes it possible for the resin leg member of this disclosure to suppress wobbling with respect to the object to which it is attached. Furthermore, since the resin leg member of this disclosure can be attached to the object to which it is attached simply by screwing the screw receiver body and the screw on the object to which it is attached, there is no need for another mechanism to connect the object to which it is attached and the resin leg member. In other words, the assembly man-hours for another mechanism are not increased.

[0008] Furthermore, the term "resin leg member" in this disclosure does not mean a member made entirely of resin, but rather a member that uses resin as its main material.

[0009] (2) In the resin leg member of the present disclosure, the flat portion may be configured to make surface contact with the flat portion of the mounting target when the screw receiving body portion and the mounting target side screw are screwed together.

[0010] In the resin leg member described in (2) above, the wobbling of the screw receiver relative to the mounting object is suppressed, so the wobbling of the resin leg member relative to the mounting object is further suppressed.

[0011] (3) The resin leg member of the present disclosure may further include an internal thread extending in the depth direction inside the leg body, the first end of which may be screwed into the screw receiving body, and the second end of which may be attached to the leg body.

[0012] In the resin leg member described in (3) above, the rotation of the leg body with the screw receiver body as the pivot point is further suppressed by the internal screw.

[0013] (4) The resin leg member of the present disclosure may further include a pulling means for pulling the internal screw in a direction from the first end of the leg body toward the second end of the leg body.

[0014] In the resin leg member described in (4) above, as the internal screw is pulled by the pulling mechanism, the screw receiver provided at the first end of the leg body is also pulled in the direction from the first end to the second end of the leg body. As a result, the flat surface of the screw receiver is pressed more firmly against the first end of the leg body, making it less likely for a gap to form between the flat surface and the first end. Therefore, the weakening of the force distribution effect that deforms the first end due to this gap is suppressed, and the wobbling of the leg body is effectively suppressed.

[0015] (5) In the resin leg member of the present disclosure, the tensioning means may include a restricting portion provided on the inner surface of the leg body and a tensioning screw receiver that engages with the internal screw, and the movement of the tensioning screw receiver toward the first end due to the rotation of the tensioning screw receiver relative to the internal screw may be restricted to a predetermined position by the restricting portion.

[0016] In the resin leg member described in (5) above, even if the tension screw receiver is rotated, the tension screw receiver does not move from its predetermined position toward the first end. In this state, if the tension screw receiver is tightened against the internal screw, the internal screw is pulled in the direction from the first end to the second end of the leg body.

[0017] (6) The table of this disclosure may also include any of the resin leg members described in (1) to (5) above, and a tabletop to which it is attached.

[0018] The resin leg member according to the present invention may consist only of the configuration described in (1) above, or it may be an arbitrary combination of the configuration described in (1) above and the configuration described in any of (2) to (5) above, to the extent that compatibility can be maintained. When combining the configuration described in (1) above and the configuration described in any of (2) to (5) above, it is also possible to combine all or part of the configuration described in (1) above with all or part of the configuration described in (2) to (5) above, to the extent that compatibility can be maintained.

[0019] Furthermore, the table according to the present invention may comprise a resin leg member formed by arbitrarily combining the configuration described in (1) above and the configuration described in any of (2) to (5) above, and a tabletop to which it is attached. Furthermore, the table according to the present invention may comprise a resin leg member formed by combining all or part of the configuration described in (1) above and all or part of the configuration described in (2) to (5) above, and a tabletop to which it is attached. [Effects of the Invention]

[0020] According to this disclosure, it is possible to provide a resin leg member that suppresses wobbling with respect to the object to which it is attached and the increase in assembly man-hours due to installation, as well as a table equipped with the resin leg member. [Brief explanation of the drawing]

[0021] [Figure 1] This is a side view of a table according to an embodiment of the present disclosure. [Figure 2] This is a perspective view of a table illustrating the assembly of a table according to the embodiments of this disclosure. [Figure 3] This is a view of the underside of the tabletop according to an embodiment of this disclosure. [Figure 4] Figure 3 shows a cross-sectional view of AA. [Figure 5] It is a side view of the leg main body part of the resin leg member of the table according to an embodiment of the present disclosure. [Figure 6] It is a cross-sectional view taken along the line B-B shown in FIG. 5. [Figure 7] It is a partially enlarged view of the lower end of the leg main body part among the cross-sectional views taken along the line B-B shown in FIG. 6. [Figure 8] It is a side view of the resin leg member of the table according to an embodiment of the present disclosure. [Figure 9] It is a cross-sectional view taken along the line C-C shown in FIG. 8. [Figure 10] It is a partially enlarged view of the upper end of the resin leg member among the cross-sectional views taken along the line C-C shown in FIG. 9. [Figure 11] It is a partially enlarged view of the lower end of the resin leg member among the cross-sectional views taken along the line C-C shown in FIG. 9.

MODE FOR CARRYING OUT THE INVENTION

[0022] Table 1 according to an embodiment of the present disclosure will be described with reference to the drawings. In FIGS. 1 to 11, the Z direction is referred to as the upward direction, and the direction opposite to the Z direction is referred to as the downward direction.

[0023] (Table 1) Figure 1 is a side view of table 1. Figure 2 is a perspective view of table 1 for illustrating its assembly. As shown in Figures 1 and 2, table 1 is, for example, a circular table and comprises a tabletop 2, resin leg members 3A, 3B, 3C, and 3D. As shown in Figure 2, bolts 20 are provided on the underside (lower surface) of tabletop 2. As shown in Figure 2, resin leg member 3B is attached to the underside of tabletop 2 by being pressed against bolt 20 and rotated clockwise (in the direction of the rotation arrow in Figure 2) around a rotation axis parallel to the upward direction. A detailed description of the attachment method will be given later. Resin leg members 3A, 3C, and 3D have the same configuration as resin leg member 3B. Furthermore, the attachment methods of resin leg members 3A, 3C, and 3D to tabletop 2 are the same as those of resin leg member 3B.

[0024] Note that the tabletop 2 is an example of an object to be attached in this disclosure. Also, in this disclosure, a bolt means a relatively large one and is a type of screw. However, a relatively small screw may be used in place of a bolt for the table 1.

[0025] (Top plate 2) Figure 3 is a rear view of the tabletop 2 of table 1 (see Figures 1 and 2). Figure 4 is a cross-sectional view AA of the tabletop 2 shown in Figure 3, taken along the cross-sectional line AA. The tabletop 2 is, for example, round, but is not limited to this. As shown in Figures 3 and 4, the tabletop 2 has an upper wall 2A and a lower wall 2B that are opposite each other in the vertical direction and have, for example, a circular shape when viewed from the vertical direction. The tabletop 2 further has a side wall 2C that connects the outer peripheral edge of the upper wall 2A and the outer peripheral edge of the lower wall 2B and is parallel to the vertical direction. This structure forms a hollow portion 2D surrounded by the upper wall 2A, the lower wall 2B, and the side wall 2C. Each of the upper wall 2A, the lower wall 2B, and the side wall 2C is made of resin. For example, polyethylene, polypropylene, etc. can be used as the resin for the tabletop 2. However, the material of the tabletop 2 may be something other than resin. It is preferable that the hollow portion 2D is filled with a reinforcing material such as foamed urethane.

[0026] As shown in Figure 4, recesses 2B1 are formed on the underside of the top plate 2, i.e., on the outer surface of the lower wall 2B. The recesses 2B1 are recessed upwards. There are four recesses 2B1, corresponding to the number of resin leg members 3A to 3D. As shown in Figures 3 and 4, bolt assemblies 24A, 24B, 24C, and 24D are respectively placed in the four recesses 2B1. Each bolt assembly 24A to 24D is equipped with a bolt 20, three countersunk screws 22, and three cap nuts 28.

[0027] As shown in Figure 4, the bolt 20 is a metal bolt with a base, comprising a bolt base 20A and a bolt shaft 20B. The bolt base 20A has a flat plate shape with its normal direction being upward. The bolt shaft 20B has a cylindrical shape extending downward from the center of the bolt base 20A, and a helical screw groove is formed on the circumferential surface of the cylinder. Three countersunk screws 22 are screwed into three metal cap nuts 28 embedded in the bottom surface (upward surface) of the recess 2B1, thereby sandwiching the bolt base 20A between the countersunk screws 22 and the three cap nuts 28. Note that the bolt base 20A is an example of the mounting-side flat portion of this disclosure. The bolt shaft 20B is an example of the mounting-side screw of this disclosure.

[0028] As shown in Figure 4, the portion of the lower wall 2B in which the cap nut 28 is embedded bites into the upper wall 2A in an upward direction. As a result, even if an external force is applied to the lower wall 2B via the bolt 20, the force causing the deformation can be distributed between the lower wall 2B and the upper wall 2A, thereby suppressing deformation of the top plate 2.

[0029] As shown in Figure 3, drainage holes 26 are provided on the underside of the top plate 2, allowing water that has entered the hollow section 2D to be drained.

[0030] (Resin leg member 3) As shown in Figures 1 and 2, the resin leg members 3A, 3B, 3C, and 3D each have, for example, a round bar shape. The main material of each of the resin leg members 3A, 3B, 3C, and 3D is resin. As the resin material for the resin leg members 3A, 3B, 3C, and 3D, for example, polyethylene, polypropylene, etc. can be used.

[0031] Each of the resin leg members 3A, 3B, 3C, and 3D comprises a leg body 30 (see Figure 5 below), a buckle 32 (see Figures 8-10 below), a leg cap 34 (see Figures 8 and 9 below), an internal bolt 36 (see Figures 9 and 10 below), and a tensioning means 40 (see Figure 11 below). The resin leg member 3A will be described below, but the configurations of the other resin leg members 3B, 3C, and 3D are the same as those of resin leg member 3A, differing only in their mounting positions. The buckle 32 is an example of a screw receiver in this disclosure. The internal bolt 36 is an example of an internal thread in this disclosure.

[0032] (Script body part 30) The leg body portion 30 will be described with reference to Figures 5 to 7. Figure 5 is a side view of the leg body portion 30 of the resin leg member 3A of the table 1. Figure 6 is a cross-sectional view of the leg body portion 30 shown in Figure 5, taken along the cross-sectional line BB. Figure 7 is a magnified view of the lower end of the leg body portion 30 in the cross-sectional view BB.

[0033] The main body 30 is made of, for example, resin. The external shape of the main body 30 is, for example, a round bar shape. As shown in Figure 6, the main body 30 has a cylindrical portion 30A and an upper end 30B. The cylindrical portion 30A has a cylindrical shape with a hollow portion 30C. The upper end 30B (the end in the Z direction) of the cylindrical portion 30A is closed but has an opening in the center. The lower end of the cylindrical portion 30A is open.

[0034] The upper end 30B of the script body 30 is an example of one end of the script body of this disclosure.

[0035] As shown in Figure 7, the cylindrical portion 30A has a thick-walled portion 300A and a thin-walled portion 300B. The thick-walled portion 300A is located above the thin-walled portion 300B. As shown in Figure 7, the outer diameter of the thick-walled portion 300A and the outer diameter of the thin-walled portion 300B are equal, and the inner diameter of the thick-walled portion 300A is smaller than the inner diameter of the thin-walled portion 300B. As a result, a step 300C is formed on the inner circumferential surface of the cylindrical portion 30A at the boundary between the thick-walled portion 300A and the thin-walled portion 300B. Note that the step 300C is an example of a restricting portion in this disclosure.

[0036] (Base nut 32) The pedestal nut 32 will be described with reference to Figures 8 to 11. Figure 8 is a side view of the resin leg member 3A of the table 1 according to the embodiment of this disclosure. Figure 9 is a cross-sectional view taken along the cross-sectional line of the resin leg member 3A shown in Figure 8. Figure 10 is a partially enlarged view of the upper end of the resin leg member 3A from the cross-sectional view shown in Figure 9. Figure 11 is a partially enlarged view of the lower end of the resin leg member 3A from the cross-sectional view shown in Figure 9.

[0037] As shown in Figure 9, the basted nut 32 is provided at the upper end 30B of the base body portion 30 (see Figure 8). Specifically, as shown in Figure 10, the basted nut 32 has a nut body portion 320 and a flat portion 322. The nut body portion 320 and the flat portion 322 are each made of metal and are formed as a single unit. The nut body portion 320 has a cylindrical shape, with the upper and lower ends in the axial direction of the cylindrical shape being open. A helical screw groove is formed on the inner circumferential surface of the nut body portion 320. This forms the screw hole of the nut body portion 320. The axial direction of this cylindrical shape is also referred to as the depth direction of the screw hole of the nut body portion 320. The flat portion 322 has a flat plate shape. The normal direction of the flat portion 322 is parallel to the depth direction of the screw hole of the nut body portion 320. The flat portion 322 is connected to the upper end of the nut body portion 320 and surrounds the opening at the upper end of the nut body portion 320 when viewed from the depth direction of the screw hole of the nut body portion 320. In other words, when viewed from the top and bottom direction, the flat portion 322 is larger than the nut body portion 320.

[0038] The nut with base 32 is attached to the upper end 30B with the cylindrical nut body 320 inserted downwards. The lower surface 322B of the flat portion 322 is in surface contact with the upper surface 30B1 of the upper end 30B. More specifically, the area around the opening of the upper end 30B is recessed downwards, and the lower surface 322B of the flat portion 322 does not make surface contact with this recess, but rather makes surface contact with the upper surface 30B1 of the upper end 30B at a position away from the nut body 320 in the radial direction of the nut body 320. When viewed from above or below, this surface contact portion has a ring shape.

[0039] As the nut body 320 rotates with its longitudinal axis as the pivot point (see Figure 2), the upper part of the nut body 320 screws onto the bolt shaft 20B of the top plate 2, and the upper surface 322A of the flat portion 322 makes surface contact with the lower surface of the bolt base 20A.

[0040] (Internal bolt 36) As shown in Figures 9 to 11, the internal bolt 36 of the resin leg member 3A has a cylindrical shape. A screw groove is formed on the circumferential surface of this cylinder. The internal bolt 36 is positioned in the hollow portion 30C of the leg body 30 with the direction of extension of the cylinder aligned with the vertical direction, as shown in Figure 9. In the vertical direction, the length of the internal bolt 36 is greater than the length from the nut 32 to the step 300C. The upper end of the internal bolt 36 is screwed into the lower part of the nut body 320. The lower end of the internal bolt 36 is attached to the leg body 30, but the details will be described later. Note that the internal bolt 36 is an example of an internal thread in this disclosure.

[0041] (Pulling mechanism 40) As shown in Figure 11, the internal bolt 36 is being pulled downward by the tensioning means 40. That is, the internal bolt 36 is being pulled in the direction from the upper end 30B of the screen body 30 toward the lower end of the screen body 30.

[0042] Specifically, as shown in Figure 11, the pulling means 40 includes a pulling screw receiver 38 and a step 300C, which is an example of a restricting portion of this disclosure.

[0043] The tension screw receiver 38 has a washer 380 and a nut 382. As shown in Figure 11, the washer 380 is inserted onto the internal bolt 36. The outer peripheral edge of the upper surface of the washer 380 is in contact with the lower surface (the surface with the normal direction downward) of the step 300C. The nut 382 is screwed onto the internal bolt 36 while in contact with the lower surface of the washer 380. That is, the nut 382 and the internal bolt 36 are screwed together such that the washer 380 is sandwiched between the lower surface of the step 300C and the nut 382. In this state, the nut 382 is tightened further against the internal bolt 36. Because the upward movement of the washer 380 and the nut 382 is restricted to the position of the step 300C by the step 300C, the internal bolt 36 is pulled in the direction from the upper end 30B of the leg body 30 toward the lower end of the leg body 30.

[0044] (Leg cap 34) As shown in Figure 11, the leg cap 34 is fitted into the opening at the bottom of the leg body 30. The leg cap 34 may be omitted.

[0045] (Function of Table 1 and Resin Leg Member 3A) Even when an external force is applied to the leg body 30 that causes it to rotate with the nut body 320 of the resin leg member 3A as the pivot point, the force that deforms the upper end 30B of the resin leg body 30 is distributed between the area around the nut body 320 and the area around the upper surface 30B1 of the upper end 30B that is in surface contact with the lower surface 322B of the flat portion 322. In other words, this configuration allows the entire base-mounted nut 32 to resist the force that deforms the upper end 30B. As a result, deformation of the upper end 30B of the leg body 30 is suppressed. This allows the resin leg member 3A of this disclosure to suppress wobbling relative to the tabletop 2 caused by deformation of the upper end 30B. Furthermore, since the resin leg member 3A of this disclosure can be attached to the tabletop 2 simply by screwing the nut body 320 and the bolt shaft 20B of the tabletop 2 together, the increase in assembly man-hours can also be suppressed.

[0046] In the conventional design where the screw receiver of the leg member does not have a flat surface, a gap may occur between the upper end of the leg member and the tabletop due to loosening of the screw connection between the tabletop screw and the screw receiver of the leg member, or due to the low dimensional accuracy of the leg member. This gap can cause the force that deforms the upper end of the leg member to be applied only around the screw receiver. However, in the resin leg member 3A of the embodiment of this disclosure, even if a gap occurs between the lower surface of the bolt base 20A of the bolt 20 and the upper surface 322A of the flat surface 322 of the base nut 32, the flat surface 322 that makes surface contact with the upper surface 30B1 of the upper end 30B can distribute the force that deforms the upper end 30B.

[0047] However, as described above, if the lower surface of the bolt base 20A of the bolt 20 and the upper surface 322A of the flat portion 322 of the nut with base 32 are in surface contact, the nut with base 32 will not wobble relative to the bolt 20, and the wobbling of the resin leg member 3A will be further suppressed.

[0048] The planar portion 322 may have a circular or rectangular shape when viewed from the depth direction of the screw hole in the nut body portion 320. Furthermore, the shape of the planar portion 322 when viewed from the depth direction may be set to satisfy the following condition, for example, in order to enhance the effect of distributing external forces: Condition: The area of ​​the planar portion 322 (including the area of ​​the nut body portion 320) is at least twice the area of ​​the nut body portion 320. Moreover, it is even better if the shape of the planar portion 322 when viewed from the depth direction is set to cover the entire upper surface 30B1 of the upper end 30B.

[0049] (Action by internal bolt 36) The internal bolt 36 is attached at its upper end to the upper end 30B of the leg body 30 via a nut with a base 32, and at its lower end to the leg body 30 via a washer 380, a nut 382, ​​and a step 300C. As a result, the leg body 30 is less likely to rotate around the nut body 320 as a pivot point, and the resin leg member 3A is less likely to wobble relative to the tabletop 2.

[0050] (Action by the pulling mechanism 40) As the internal bolt 36 is pulled by the pulling means 40 in the direction from the upper end 30B toward the lower end of the leg body 30, the flat portion 322, which is integrated with the nut body 320 that screws onto the internal bolt 36, is also pulled in the direction from the upper end 30B toward the lower end of the leg body 30. As a result, the flat portion 322 is pressed downward against the upper end 30B, making it difficult for a gap to form between the lower surface 322B of the flat portion 322 and the upper surface 30B1 of the upper end 30B. Consequently, the lower end of the leg body 30 becomes less likely to rotate around the nut body 320 as a pivot point due to this gap. In other words, the resin leg member 3A becomes even less likely to wobble relative to the tabletop 2.

[0051] Furthermore, since the tensioning mechanism 40 is composed of a step 300C, a nut 382, ​​and a washer 380, the lower end of the internal bolt 36 is fixed in position radially by the washer 380. This further suppresses the lower end of the suspension body 30 from rotating around the nut body 320 as a pivot point.

[0052] (modified version) The tabletop 2 of the table 1 according to the embodiment of this disclosure is circular when viewed from above, but is not limited to this. Also, the number of resin leg members 3A to 3D is 4, but is not limited to this. For example, the number of resin leg members may be 3 or 5 or more. Furthermore, one resin leg member may be attached to the center of the tabletop 2. Also, the tabletop 2 does not have to have a hollow portion 2D.

[0053] In Table 1 of the embodiment of this disclosure, the shapes of the resin leg members 3A, 3B, 3C, and 3D are round bars, but they are not limited to these shapes; they may also be square bars or conical. Furthermore, the shapes of the resin leg members 3A, 3B, 3C, and 3D are not limited to bar shapes. For example, the shape of the leg body 30 may be bent.

[0054] Furthermore, although a recess 2B1 is provided in the lower wall 2B of the tabletop 2 of the table 1 according to the embodiment of this disclosure, the recess 2B1 may be omitted.

[0055] Furthermore, in the table 1 according to the embodiment of this disclosure, the nut body portion 320 of the resin leg member 3A is cylindrical in shape corresponding to the cylindrical shape of the bolt shaft 20B, and has open upper and lower ends. However, the shape of the nut body portion 320 is not limited to this. For example, instead of the nut with base 32, a screw receiver having a screw receiving body portion with a conical screw hole that tapers at the bottom and a flat portion integrated with the screw receiving body portion may be used. That is, instead of the cylindrical bolt shaft 20B, a screw with a pointed tip may be used on the tabletop 2.

[0056] Furthermore, in Table 1 of the embodiment of this disclosure, the nut with base 32 was constructed by integrating a nut body portion 320 and a flat portion 322. However, the nut body portion 320 and the flat portion 322 only need to be firmly connected, and for example, the nut with base 32 may be constructed by fixing a separate metal part with metal.

[0057] Furthermore, although the bolt 20 of the top plate 2 had a bolt base 20A, the bolt base 20A may be omitted.

[0058] Furthermore, in the table 1 according to the embodiment of this disclosure, the lower surface of the bolt base 20A and the upper surface 322A of the flat portion 322 of the base nut 32 were in surface contact, but surface contact is not required. Even if the bolt base 20A and the flat portion 322 are not in surface contact, the flat portion 322 can prevent the lower end of the base body 30 from rotating around the nut body 320 as a pivot point.

[0059] Furthermore, although the leg body portion 30 of the resin leg member 3A in the embodiment of this disclosure had a hollow portion 30C, the leg body portion 30 does not need to have a hollow portion 30C.

[0060] Furthermore, in the resin leg member 3A of the embodiment of this disclosure, the length of the internal bolt 36 in the vertical direction was greater than half the length of the leg body 30 in the vertical direction. However, the length of the internal bolt 36 may be greater or less than the length shown in the example in Figure 9. However, the longer the internal bolt 36 is and the closer its lower end is to the lower end of the leg body 30, the more the wobbling of the leg body 30 will be suppressed.

[0061] Furthermore, in Table 1 of the embodiment of this disclosure, the step 300C provided on the inner surface of the screen body 30 was an example of the restricting part of this disclosure, but the restricting part of this disclosure is not limited to this. For example, a protrusion may be provided on the inner surface of the screen body 30, and the upward movement of the washer 380 may be restricted by this protrusion. Also, the washer 380 may be omitted, and the tension nut 382 may be in direct contact with the step 300C.

[0062] Furthermore, in Table 1 according to the embodiment of this disclosure, the pulling means 40 was composed of a step 300C and a pulling screw receiver 38, but the pulling means 40 may be composed of other members. For example, the pulling means 40 may be composed of a spring, with one end of the spring attached to the internal bolt 36 and the other end of the spring attached to the lower end of the leg body 30. In this configuration, the internal bolt 36 is pulled downward by the compressing force of the spring. Alternatively, the pulling means 40 may not pull the internal bolt 36, but directly pull the buckle nut 32 downward. For example, a spring can be used to pull the buckle nut 32 downward. Note that if the pulling means 40 directly pulls the buckle nut 32 downward, the internal bolt 36 may be omitted.

[0063] Furthermore, in the embodiments of this disclosure, a table 1 having a tabletop 2 is shown as the object to which the resin leg members are attached. However, the object to which the members are attached and the product assembled by the attachment may be other. For example, other assembled products include benches, chairs, and step ladders.

[0064] Although this embodiment and its modifications have been described above, the present invention is not limited to this embodiment, and various modifications are possible as long as they are within the scope of the claims. [Explanation of symbols]

[0065] 1 table 2 Top plate 2B Lower wall 2B1 recess 20 volts 3A~3D resin leg parts 30 Script body part 32 nuts with base 36 Internal bolts 40. Pulling method

Claims

1. A resin screen body, A metal screw receiver is provided at the first end of the aforementioned screen body, Equipped with, The aforementioned screw receiver is A screw receiver body configured to screw into the screw on the mounting target, A planar portion that makes surface contact with the first end and whose normality is the depth direction of the screw hole in the screw receiving body, has Resin leg parts.

2. The aforementioned flat portion is configured to make surface contact with the flat portion of the mounting target when the screw receiving body portion and the screw on the mounting target side are screwed together. The resin leg member according to claim 1.

3. The script body further comprises an internal thread extending along the depth direction, The first end of the internal screw is screwed into the screw receiver body, The second end of the internal screw is attached to the screen body. The resin leg member according to claim 1.

4. The system further comprises a pulling means for pulling the internal screw in the direction from the first end of the screen body toward the second end of the screen body. The resin leg member according to claim 3.

5. The aforementioned pulling means is, A regulating portion provided on the inner surface of the aforementioned screen body, A tension screw receiver that engages with the aforementioned internal screw, It has, The movement of the tension screw receiver toward the first end due to the rotation of the tension screw receiver relative to the internal screw is restricted to a predetermined position by the regulating portion. The resin leg member according to claim 4.

6. A resin leg member according to any one of claims 1 to 5, The aforementioned top panel to be attached, A table equipped with [a specific feature / feature].

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