JP5194182B1 - Change nut bush - Google Patents

Abstract

[PROBLEMS] To easily adapt to changes in nut diameters (M3 to M10), to be able to insert M12, and to securely tighten against a compressive load when an adjuster or the like is attached or a tensile load when a caster is attached. Provide bush.
A nut holder 21 for fixing a nut 41 fitted to a bolt attached to an adjuster, a caster or the like, a nut holder installation portion 16 for inserting and installing the nut holder 21, and a bolt A bush main body 11 having a through hole 18 and fitted inside a leg end of a fixture or the like is provided. In the bush main body 11, a window portion for facilitating removal of the inserted nut holder 21 is provided on the opposite side of the nut holder installation portion 16. A sleeve 31 is provided which is fitted to the lower part of the through hole 18 of the bush body 11 and is installed at the lower part of the nut holder 21.
[Selection] Figure 8

Description

  The present invention relates to a bush for attaching an adjuster, a caster or the like to a leg end portion of, for example, a cart or a table fixture.

  For example, the conventional bush (adjuster nut body) disclosed in Patent Document 1 is composed of legs of furniture desks, chairs, tables, hangers, shelves, etc., and is composed of roughly round pipes, square pipes, deformed pipe members, etc. Adjuster body with nut that is shaped to fit and attach to the end of the leg, and adjuster bolts, casters, etc. can be attached to the adjuster body made of synthetic resin, etc. A through hole is provided in the part and inside, and an insertion part and a space part in which the nut body can be inserted and installed from the outside are provided in the through hole, and a holding rib part of the nut body is provided in the space part, The outer peripheral portion of the holding rib portion is configured to abut and fit into the inside of the leg end member. In addition, the outer portion of the nut body holder that wraps the nut body is fitted and attached to the space portion, and a through hole is provided therein, and the outer portion is provided with a rib dent portion that is fitted to the holding rib portion of the adjuster body. The adjuster body is configured with a nut body.

  Thereby, attachment / detachment / separation of the adjuster main body and the nut body can be easily performed. When this adjuster nut body is fitted and attached to the end of the leg, the nut body cannot be attached or detached, and it is part of the adjuster nut body, but if you remove it from the end of the leg, the adjuster body The nut body can be easily attached and detached as well as when the nut body is inserted into the adjuster body without using a pulverizer.

JP 2001-104077 A

  However, the conventional bushing has a problem that it cannot easily cope with a change in a nut diameter (M3 to M10) to which an adjuster bolt or a caster is attached. Further, the current commercially available product has a problem that M8 is the maximum for the square 25 pipe, M10 is the maximum for the round 25 pipe, and M12 cannot be inserted.

  Furthermore, the structure provided with the retaining rib of the nut body as shown in Patent Document 1 is not sufficient for the compressive load when the adjuster is attached or the tensile load when the caster is attached. There is no problem.

  In view of the above-described problems, the present invention can easily cope with the change of the nut diameter (M3 to M10), can be inserted with M12, and can be inserted with an adjuster or the like, or a tensile load when the caster is attached. On the other hand, the object is to provide a bush that can be securely tightened.

  The change nut bush according to the present invention is a bush for attaching an adjuster, a caster, or the like to a leg end portion of a fixture, etc., for fixing a nut fitted to a bolt attached to the adjuster, the caster, or the like. A nut holder; a nut holder installation portion for inserting and installing the nut holder; and a bushing body having a through hole for the bolt and fitted into a leg end portion of the fixture or the like. It is characterized by.

  By configuring in this way, a nut holder corresponding to a plurality of nut diameters is prepared, and a nut fitted to a bolt attached to an adjuster, a caster or the like is fixed to the corresponding nut holder, and the nut holder installation portion is fixed. The nut holder can be inserted and installed, and the bush body can be fitted inside the leg end of fixtures, etc., and fitted to bolts attached to adjusters, casters, etc., making it easy to change the nut diameter. it can. In addition, a large nut can be attached to the pipe diameter, and an M12 nut can be inserted. In addition, since the nut holder is fixed to the nut holder installation part of the bush body, the abutting area is much larger than that of the conventional structure, so the compression load when installing an adjuster, etc. It can be tightened more securely than the conventional structure against the tensile load.

  Moreover, it is preferable that the change nut bush which concerns on this invention is a structure which has the window part for making it easy to remove the inserted nut holder in the said bush main body on the opposite side to the said nut holder installation part.

  By comprising in this way, when removing a nut holder from a bush main body, it becomes easy to remove the inserted nut holder by pushing a nut holder with a finger from the outside of a window part.

  Moreover, it is preferable that the change nut bush which concerns on this invention is a structure which has a sleeve fitted in the said through-hole lower part of the said bush main body, and installed in the lower part of the said nut holder.

  By comprising in this way, mixing of the foreign material from a through-hole and backlash with a bush main body, an adjuster, a caster, etc. can be suppressed.

  According to the change nut bush according to the present invention, a nut holder corresponding to a plurality of nut diameters is prepared, and a nut fitted to a bolt attached to an adjuster, a caster or the like is fixed to the corresponding nut holder, and the nut holder Insert the nut holder into the installation part, install it, fit the bush body inside the leg end of fixtures, etc., and fit the bolt attached to the adjuster, caster, etc., so that the nut diameter (M3 It is possible to easily cope with the change of M10). In addition, a large nut can be attached to the pipe diameter, and an M12 nut can be inserted. In addition, since the nut holder is fixed to the fixed part of the bush body, the contact area is much larger than that of the conventional structure, so the compression load when installing an adjuster, etc., and the tensile load when installing a caster On the other hand, it can be tightened more securely than the conventional structure.

It is a figure which shows the external appearance of the square-shaped change nut bush main body which concerns on this invention. It is a figure which shows the cross section of the square-shaped change nut bush main body which concerns on this invention. It is a figure which shows the external appearance of the round type change nut bush main body which concerns on this invention. It is a figure which shows the cross section of the round type change nut bush main body which concerns on this invention. It is a figure which shows the external appearance of the nut holder which concerns on this invention. It is a figure which shows the cross section of the nut holder which concerns on this invention. It is a figure which shows the external appearance of the sleeve which concerns on this invention. It is a conceptual diagram which shows the structure of the round type change nut bush which concerns on this invention. It is a figure which shows the external appearance and partial cross section of the Example of attachment of the round type change nut bush which concerns on this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a view showing an appearance of a square change nut bush body 1 according to the present invention. 1A is a front view, FIG. 1B is a right side view, FIG. 1C is a rear view, FIG. 1D is a plan view, and FIG. 1E is a bottom view. The left side view is omitted because it is symmetrical with FIG. FIG. 2 is a view showing a cross section of the square change nut bush body 1 according to the present invention. 2A is a vertical sectional view, FIG. 2B is a horizontal sectional view taken along the line AA ′ of the nut holder installation portion 6, and FIG. 2C is a horizontal sectional view taken along the line BB ′ of the trunk portion 2.

  Each of the square change nut bush bodies 1 includes a substantially rectangular parallelepiped body portion 2, a body lower portion 4 below the body portion 2, a rib portion 5 below the body lower portion 4, and a through-hole 8 in the internal vertical direction. . The body portion 2 is provided with four horizontal convex portions 9 projecting horizontally in the outer peripheral direction and four vertical convex portions 3 so as to vertically connect the central portion of the horizontal convex portion 9 over four surfaces. The trunk lower part 4 has a nut holder installation part 6 for inserting and installing a nut holder 21 described later, and a window part 7 on the opposite side of the nut holder installation part 6. The window portion 7 is for facilitating removal of the inserted nut holder 21. When the nut holder 21 is removed from the bush body 1, it is inserted by pushing the nut holder 21 from the outside of the window portion 7 with a finger or the like. The nut holder 21 is removed. The window part 7 is smaller than the opening area of the nut holder installation part 6, and is made into the vertically long rectangular shape here.

  FIG. 3 is a view showing the appearance of the round change nut bush body 11 according to the present invention. 3A is a front view, FIG. 3B is a right side view, FIG. 3C is a rear view, FIG. 3D is a plan view, and FIG. 3E is a bottom view. The left side view is omitted because it is symmetrical with FIG. FIG. 4 is a view showing a cross section of the round change nut bush body 11 according to the present invention. 4A is a vertical sectional view, FIG. 4B is a horizontal sectional view taken along the line AA ′ of the nut holder installation portion 16, and FIG. 4C is a horizontal sectional view taken along the line BB ′ of the trunk portion 12.

  Each of the round change nut bush bodies 11 includes a cylindrical body portion 12, a body lower portion 14 below the body portion 12, a rib portion 15 below the body lower portion 14, and a through hole 18 in the vertical direction inside. The body portion 12 is provided with four horizontal convex portions 19 projecting horizontally in the outer peripheral direction and four vertical convex portions 13 so as to vertically connect the central portion of the horizontal convex portion 19 over the entire circumference. The trunk lower part 14 has a nut holder installation part 16 for inserting and installing a nut holder 21 described later, and a window part 17 on the opposite side of the nut holder installation part 16. The window portion 17 is for facilitating removal of the inserted nut holder 21. When the nut holder 21 is removed from the bushing body 11, the nut holder 21 is inserted by pushing the nut holder 21 from the outside of the window portion 17 with a finger or the like. The nut holder 21 is removed. The window part 17 is smaller than the opening area of the nut holder installation part 16, and has a vertically long rectangular shape here.

  FIG. 5 is a view showing the appearance of the nut holder 21 according to the present invention. 5 (a) is a front view, FIG. 5 (b) is a left side view, FIG. 5 (c) is a right side view, FIG. 5 (d) is a rear view, and FIG. 5 (e) is a plan view. The bottom view is omitted because it is symmetrical with FIG. FIG. 6 is a view showing a cross section of the nut holder 21 according to the present invention. 6A is a vertical cross-sectional view taken along the line AA ′ in the central vertical direction, and FIG. 6B is a vertical cross-sectional view taken along the line BB ′ in the central left-right direction.

  The nut holder 21 is a substantially prismatic part having a space portion 25 in the shape of a nut for housing a nut therein, and a through hole 23 in the center of the space portion 25. The left side of the nut holder 21 is a curved surface having a constant curvature such that the center portion is flat and both sides thereof have the same outer periphery as the outer periphery of the lower trunk portion 14 when inserted and installed in the round change nut bush body 11. ing. The right side of the nut holder 21 has two symmetrical planes with a central portion that is convex. The nut holder 21 is designed to have a shape and a size that can be applied to both the square change nut bush main body 1 and the round change nut bush main body 11.

  FIG. 7 is a view showing the appearance of the sleeve 31 according to the present invention. 7A is a front view, FIG. 7B is a right side view, and FIG. 7C is a rear view. Note that the left side view, the plan view, and the bottom view are omitted because they are symmetrical with FIG. The sleeve 31 is a cylindrical part having a through hole 33 in the center and a rib portion 32 on the outer periphery of the bottom surface. By using this sleeve 31, there is no gap between the change nut bush body 11 and the nut holder 21, so that foreign matter can be mixed into the change nut bush body 11 from the through hole 18, the change nut bush body 11 and the adjuster, The backlash with a caster etc. can be suppressed. By not using this sleeve 31, it is possible to insert the nut of M12.

  FIG. 8 is a conceptual diagram showing a configuration of a round change nut bush according to the present invention. First, the sleeve 31 is inserted into the round change nut bush main body 11 from the upper through hole 18 and fitted into the through hole 18 of the rib portion 15. Next, with respect to the nut 41 fitted to the bolt attached to the adjuster, the caster or the like, the nut 41 is fixed in the space portion 25 of the nut holder 21 to be fitted, and the nut holder is turned upside down on the nut holder installation portion 16. Install. By fitting the round change nut bush body 11 configured in this way into the leg end of furniture or the like, and fitting it into a bolt attached to an adjuster, caster or the like, the nut diameter (M3 to M10) It is possible to easily cope with changes.

  FIG. 9 is a view showing an appearance and a partial cross section of an embodiment of attaching the round change nut bush 11 according to the present invention. The bolt 62 connected to the adjuster 61 is inserted into the round change nut bush main body 11 described in the explanation of FIG. 8 from the through hole 18, and is fitted to the nut 41 in the nut holder 21 through the sleeve 31. , Fix both. Next, the body 12 of the round change nut bush body 11 is fitted into a leg end 51 such as a fixture. As a result, it is possible to attach the nut 41 which is larger than the pipe diameter, and it is possible to insert the M12 nut. Further, since the nut holder 21 is fixed to the nut holder setting portion 16 of the bush body 11, the abutting area is much larger than that of the conventional structure, so that the compressive load at the time of attaching an adjuster or the like, It can be tightened more securely than the conventional structure against the tensile load during installation.

  The present invention is not limited to the embodiments described above, and various other embodiments can be adopted. For example, the round change nut bush 11 has been described as an example in FIGS. 8 and 9, but the same can be applied to the square change nut bush 1. The change nut bush according to the embodiment of the present invention can be made of synthetic resin or the like.

  The present invention can be used for a bush for attaching an adjuster, a caster or the like to a leg end portion of a fixture or the like.

DESCRIPTION OF SYMBOLS 1 Square type change nut bushing body 2,12 trunk | drum 3,13 vertical convex part 4,14 trunk | drum lower part 5,15 rib part 6,16 nut holder installation part 7,17 window part 8,18 through-hole 9,19 horizontal convex Part 11 Round type change nut bush body 21 Nut holder 22 Nut holder body part 23, 33 Through hole 25 Space part 31 Sleeve 32 Rib part 41 Nut 51 Leg end part 61, adjuster 62 Bolt, etc.

Claims (3)

A bush for attaching adjusters, casters, etc. to the leg ends of fixtures, etc.
A nut holder for fixing a nut to be fitted to a bolt attached to the adjuster or caster,
A nut holder installation part for inserting and installing the nut holder, and a bush main body having a through hole for the bolt and fitting into a leg end part of the fixture or the like. Change nut bush. The change nut bush according to claim 1, wherein the bush body has a window portion on the opposite side of the nut holder installation portion for facilitating removal of the inserted nut holder. The change nut bush according to claim 1, further comprising a sleeve that is fitted in the lower portion of the through hole of the bush body and is installed at a lower portion of the nut holder.