JP2009235744A - Adjuster bolt structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an adjuster bolt structure capable of improving production efficiency with excellent workability. <P>SOLUTION: The adjuster bolt structure comprises a shank part 1 having a thread part, an upper cover 2 connected to a lower part of the shank part 1, a lower plate 3 engagingly locked by the upper cover 2 to be vertically movable within a predetermined range, and an elastic part 4 housed by the upper cover 2 and the lower plate 3. A fitted part 21 to which a fitting part 11 set on the shank part 1 is fitted is provided on the upper surface of the upper cover 2, and the upper cover 2 is placed on the upper surface of the elastic member 4 and engagingly locked while leaving a downward movable margin. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an adjuster bolt structure for a bathroom unit.

Conventionally, as shown in FIG. 4, the structure of an adjuster bolt known as an earthquake-resistant member for supporting a bathroom unit includes a metal upper plate 2 ′ and a metal lower plate 3 ′ with a nut N welded to the center of the upper surface. The leg portion 5 is formed by sandwiching an anti-vibration rubber 41 ′ between the upper plate 2 ′ and the lower plate 3 ′. The leg 5 formed in this way is screwed into a nut N installed on the upper plate 2 ′ with a dedicated bolt B ′ as the shaft 1, and the nut N and the shaft 1 are welded together. The adjuster bolt structure to be formed is known. (For example, see Patent Document 1)
JP 2003-3546 A

  However, in the adjuster bolt structure as described above, in forming the leg portion 5, it is necessary to fix the lower plate 3 ′ and the vibration isolating rubber 41 ′, and the vibration isolating rubber 41 ′ and the upper plate 2 ′. Further, it is necessary to weld and fix the nut N for shaft connection to the center of the upper surface of the upper plate 2 ′. Furthermore, as described above, even after such a leg portion 5 and the shaft portion 1 are screwed together, it is necessary to weld the leg portion 5 and the shaft portion 1. As described above, in forming the conventional adjuster bolt, there is a problem that the production efficiency is not good because it is necessary to repeatedly form by welding and fixing.

  Further, in the adjuster bolt having another vibration-proof structure as shown in FIG. 5, the vibration-proof rubber 41 ′ and the adjuster bolt are not integrated. In this case, it is not necessary to fix the anti-vibration rubber 41 'and the adjuster bolt. However, before installing the floor pan of the unit bath at the time of construction in the field, adjust the position of the adjuster bolt in advance. Therefore, it is necessary to arrange the anti-vibration rubber 41 '. Therefore, the adjuster bolt and the anti-vibration rubber 41 ′ need only be molded separately, so that there is no reduction in efficiency in the production of parts, but the workability in field work is poor, so a lot of construction time is required. There was a problem of doing.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a just bolt structure that improves production efficiency and has very good workability.

  In order to solve the above problem, in the invention according to claim 1, the shaft portion 1 having a screw portion, the upper cover 2 connected to the lower portion of the shaft portion 1, the upper cover 2 and a predetermined range. The adjuster bolt structure includes a lower plate 3 that is movably locked in the vertical direction and an elastic portion 4 that is accommodated by the upper cover 2 and the lower plate 3. A fitting portion 21 is provided to which the fitting portion 11 installed in the shaft portion 1 is fitted, and the upper cover 2 is placed on the upper surface of the elastic portion 4 and is locked in a state where a movement allowance is left below. It is characterized by comprising.

  Thus, since the structure which accommodates the anti-vibration rubber | gum 41 in the inside of the upper cover 2 and the lower plate 3 was employ | adopted, the anti-vibration rubber | gum 41, the upper cover 2, and the lower plate 3 were not adhere | attached conventionally. In addition to being able to demonstrate the anti-vibration function, it is possible to improve the production efficiency of the adjuster bolt, and it is possible to install the adjuster bolt with simple work even in the field work. This is also possible in

  According to the present invention, the work efficiency at the site is improved, and the production efficiency of the adjuster bolt itself is improved. Therefore, the production cost can be further reduced and reduced.

  The present invention will be described below with reference to the accompanying drawings. It should be noted that the adjuster bolt structure of the present invention is not limited to the following embodiments, and various modifications can be made without departing from the scope of the present invention.

  As shown in FIG. 1, the adjuster bolt structure of the bathroom unit according to the present embodiment includes the upper cover 2, the anti-vibration rubber 41 as the elastic portion 4, and the lower plate 3, which constitute the leg portion 5. The anti-vibration rubber 41 is disposed inside so as to be accommodated in the upper cover 2 and the lower plate 3. The lower end of the shaft portion 1 is connected to the upper surface of the leg portion 5 as described above, and thus the entire adjuster bolt is configured.

  The shaft portion 1 is formed mainly of a hexagon bolt B, and includes a barrel portion 12 in which a male screw is threaded and a fitting portion 11 formed by a head portion 13 of the hexagon bolt B. Such a shaft portion 1 is not particularly limited to the present embodiment. For example, the shaft portion 1 is formed by screwing a hexagonal nut to the tip of a cutting bolt to form a fitting portion 11 and a body portion 12. It may be.

  The upper cover 2 is formed in a bottomed cylindrical shape and is disposed so that the opening faces downward. The upper cover 2 has a mated portion 21 formed substantially at the center of the upper surface portion, and the mated portion 11 formed on the shaft portion 1 is slidably fitted to the mated portion 21 so as to be slidable in the lateral direction (see FIG. 3 (a) and (b)). The to-be-fitted part 21 has a vertical piece 211 projecting upward in a substantially U shape in a plan view so as to surround the head 13 of the hexagon bolt B that is the fitting part 11, and the body part 12 is inserted therethrough. It is formed with a horizontal piece 212 that has a U-shaped cutout when viewed from above and that holds the fitting portion 11 upward. By comprising in this way, it becomes possible to connect the upper cover 2 and the axial part 1 only by sliding the fitting part 11 formed in the axial part 1 from the side. Furthermore, since the vertical piece 211 is formed so as to surround the head 13 of the hexagon bolt B, when the nut 1 is screwed and fastened to the shaft 1, even if the shaft 1 tries to rotate together, the fitting portion 11. As the head 13 of the hexagonal bolt B as abuts against the inner wall of the vertical piece 211, it is possible to prevent the main body of the shaft portion 1 from rotating.

  A locking piece 22 projects downward from the edge of the opening of the upper cover 2. A locking claw 23 is formed at the tip of the locking piece 22 with a substantially L-shaped cross section. The locking piece 22 is fitted into a hole 31 formed in the lower plate 3 and the locking claw 23 is inserted. Therefore, it can be moved up and down within a certain range. The downward protruding length L1 of the locking piece 22 is at least downward when the anti-vibration rubber 41 is accommodated inside the lower plate 3 and the upper cover 2 and the lower plate 3 and the upper cover 2 are engaged. It is formed with a length that leaves a movement allowance. In short, when the anti-vibration rubber 41 is housed inside the upper cover 2, that is, with the upper cover 2 placed on the upper surface of the anti-vibration rubber 41, the upper surface of the lower plate 3 and the lower end surface of the opening of the upper cover 2 A gap S is formed between them, and the upper cover 2 can move downward while pushing the vibration isolating rubber 41, so that the vibration isolating rubber 41 can absorb vibration.

  In the present embodiment, four locking pieces 22 are provided in a protruding manner, and the number thereof is not particularly limited, but the rotation of the upper cover 2 is prevented when a rotational force is applied to the shaft portion 1. Considering the effects that can be achieved, it is preferable to form the locking pieces 22 at a plurality of locations.

  The lower plate 3 is composed of a bottom surface 32 in which a hole 31 into which the locking piece 22 is inserted is formed, and a side surface 33 that is formed in an annular shape downward from the edge of the bottom surface 32. . The lower plate 3 is installed so as to close the opening of the upper cover 2. As described above, the lower plate 3 is engaged by the locking piece 22 projecting from the upper cover 2, but when the upper cover 2 is closest to the lower plate 3 (that is, the opening of the upper cover 2). It is necessary that the vertical length L2 of the side surface 33 be formed with such a length that the locking piece 22 does not interfere with the floor surface (when the edge is annularly in contact with the upper surface of the lower plate 3).

  According to such a configuration, since it is not necessary to fix the vibration isolating rubber 41 to the upper cover 2 and the lower plate 3, the production efficiency is dramatically improved compared to the conventional product. Further, even when an unexpected load is applied to the adjuster bolt, the opening edge of the upper cover 2 is in contact with the upper surface of the lower plate 3, that is, it is configured not to move downward beyond a certain level. Therefore, it is possible to prevent the internal vibration-proof rubber 41 from being set up. Moreover, since the structure which accommodates the anti-vibration rubber | gum 41 inside and is not exposed to the exterior is employ | adopted, it also contributes to preventing corrosion and deterioration.

  Furthermore, since the structure that can easily connect the shaft portion 1 and the leg portion 5 is adopted, it is possible to easily assemble the adjuster bolt itself, and the workability can be further improved.

  In the present embodiment, the upper cover 2 and the lower plate 3 are formed of metal and the elastic portion is formed of the vibration isolating rubber 41. However, the material is not limited to the present embodiment. Moreover, the shape of the fitting part 11 and the to-be-fitted part 21 is not limited to this embodiment. Further, the present invention is not particularly limited to the use of bathroom units.

It is sectional drawing of this embodiment. It is an exploded perspective view same as the above. It is a figure which shows the assembly procedure of the principal part same as the above, (a) shows the immediately before attachment of a shaft part, (b) has shown the state after attachment. The side view of the conventional adjuster bolt structure is shown. FIG. 4 shows a side view of another conventional adjuster bolt structure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Shaft part 11 Fitting part 12 Body part 13 Head part 2 Upper cover 21 Part to be fitted 211 Vertical piece 212 Horizontal piece 22 Locking piece 23 Locking claw 3 Lower plate 31 Hole part 32 Bottom face 33 Side face 4 Elastic part 41 Anti-vibration rubber 5 Leg part B Bolt L1 Protruding length of locking piece L2 Vertical length of side part S Clearance between upper surface of lower plate and lower surface of upper cover

Claims (1)

  A shaft portion having a screw portion, an upper cover connected to the lower portion of the shaft portion, a lower plate that is vertically movable within a predetermined range with the upper cover, and the upper cover and the lower plate An adjuster bolt structure including an elastic portion to be accommodated, wherein an upper portion of the upper cover is provided with a fitting portion into which a fitting portion installed in the shaft portion is fitted, and the upper cover includes the elastic portion. An adjuster bolt structure, which is placed on the upper surface of the base plate and locked in a state in which a movement allowance is left below.

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