JP2578488Y2 - Inter-axis spacer - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field In the present invention, when constructing a steel-frame prefabricated house, a gap is formed between the frames and the frames or between the frames and the corner columns. And a configuration of an inter-shaft spacer.

(B) Conventional technology Conventionally, a gap is provided by interposing an inter-axial spacer between shaft assemblies, and bolts and plates are inserted into the gap in order to mount an outer wall panel or a partition frame assembly. The technique for doing so was known.

For example, as disclosed in Japanese Utility Model Laid-Open No. 60-68102.

The technology related to the spacer is disclosed in Japanese Utility Model Laid-Open No. 55-141647.
The technique described in Japanese Patent Application Laid-Open Publication No. H10-26095 is known.

Conventionally, a spacer hook 19 shown in FIGS. 10 and 11 was interposed as an inter-shaft spacer.

(C) Problems to be solved by the present invention However, in the case of the conventional spacer hook 19, which is an inter-shaft spacer formed in a hook shape, once inserted, there is no retaining structure. If the gap between the sets is wide, the spacer may be detached due to vibration after mounting, and when the fastening bolt 11 is further tightened by the impact wrench, the spacer hook 19 rotates and falls off as the fastening bolt 11 rotates. There was also a defect.

The spacer hook 19 that has fallen off in such a case has had a hard time finding on the spot, and has had a hard time removing it when it has fallen into a narrow place.

In addition, when the vehicle falls off from a high place such as the second floor, it takes a long time to go to the bottom to pick up the vehicle, which lowers the workability.

The present invention is to provide a steel plate-shaped inter-axial spacer which does not fall off, and is not deteriorated or deformed, as an alternative to the spacer hook in order to solve such a disadvantage of the prior art. .

(D) Means for Solving the Problems The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described.

With a gap formed between the frame 2 and the frame 3 or between the frame 2 and the corner post 10, a fastening bolt 11 and a fastening nut are provided.
At the time of fastening with 12, the inter-shaft spacer 9 constituting the gap is formed by bending a strip-shaped steel plate into a hairpin shape,
A guide opening 9b is provided at the tip, the diameter of the constricted portion of the guide opening 9b is configured to be smaller than the diameter of the fastening bolt 11, and the part of the guide opening 9b is pressed by strongly pressing the spacer 9 between the shafts. It is configured to pass through the outer circumference of the fastening bolt 11, and then a bolt holding arc portion 9a is provided.In a state where the portion of the bolt holding arc portion 9a is also contracted, the diameter of the fastening bolt 11 is made smaller than the diameter of the fastening bolt 11. The outer periphery is clamped by a bolt holding arc portion 9a to prevent the inter-axis spacer 9 from falling, and the most proximal portion is constituted by an elastic biasing portion 9c, and the portion of the elastic biasing portion 9c is connected to the shaft set 2 and the shaft. As a configuration protruding outward long from the gap between the sets 3,
The gripping portion to be gripped by the fingertip is also used, and the fastening bolts 11 screwed to the fastening nuts 12 are further tightened, so that the side faces of the inter-axis spacer 9 are pressed by the shaft sets 2 and 3. .

(E) Embodiment The problems to be solved and means to be solved by the present invention are as described above. Next, the configuration of the embodiment shown in the attached drawings will be described.

FIG. 1 is a perspective view showing a state in which an inter-axial spacer 9 is assembled at a portion of the shaft assembly 2 and the corner post 10, and FIG. 2 is a state in which the inter-axial spacer 9 is inserted between the shaft assembly 2 and the shaft assembly 3. 3, FIG. 3 is a perspective view showing the same inserted state, FIG. 4 is a perspective view of the state where the inter-axial spacer 9 is hung by its own weight, FIG. 5 is a front perspective view of the inserted state, and FIG.
FIG. 7 is a perspective view showing the configuration of the inter-axis spacer 9, FIG. 7 is a plan view of the same, FIG. 8 is a plan view showing another configuration of the inter-axis spacer 9, FIG. 9 is a side view, FIG. FIG. 11 is a front view showing a conventional spacer hook 19.

In FIG. 1, the frame 1 is attached to the right side of the corner post 10.
a, 1b are attached by the fastening bolt 11 and the fastening nut 12, and an outer peripheral shaft set is formed.

Further, the normal shaft assembly 2 and the normal shaft assembly 3 are fastened by the fastening bolts 11 and the fastening nuts 12 to form a shaft assembly column.

A beam 1 is erected on the upper surface of the outer frame and the column.

The spacer 9 between shafts of the present invention is thus a corner post.
A 6 mm gap is formed between the joint of 10 and the frame 1a, and the joint of the frame 2 and the shaft 3. The gap is provided with bolts for attaching an outer wall panel or a partition frame. The engaging rod passes.

In addition, electric wiring and other harnesses are also configured to pass through the wall using the gap. The spacer 9 is inserted when the fastening bolt 11 is inserted into the fastening nut 12 when tightening it with an impact wrench. The spacer 9 is not fixed to the shaft assembly 2 or the corner post 10 from the beginning. is there.

Therefore, in a state where the shaft assembly 2 and the shaft assembly 3 face each other, the fastening bolt 11 is inserted, the fastening nut 12 is hung, and it is necessary to easily insert it from the side when retightening with the impact wrench. .

In the conventional spacer hook 19, as shown in FIG.
Since the remaining portion of 19 protrudes only by the distance a, the protruding amount is difficult for an operator to grip this portion.

That is, in the conventional spacer hook 19, the distance a
Was only about 5 mm.

As shown in FIGS. 6 to 9, the spacer 9 according to the present invention can be easily formed by pressing a strip-shaped steel plate.

The elastic biasing portion 9c is formed into a hairpin shape in which a portion of the elastic urging portion 9c protrudes long from the gap between the shaft assembly 2 and the shaft assembly 3. Since the portion of the elastic urging portion 9c protrudes from the gap between the shaft assembly 2 and the shaft assembly 3 long, it can also serve as a grip portion for gripping the portion with a finger.

The distal end of the hairpin-shaped inter-axis spacer 9 is provided with a guide opening 9b at a portion of the fastening bolt 11 inserted between the shaft assembly 2 and the working machine so as to be easily inserted from the side. is there.

The guide opening 9b is an opening whose tip is opened and gradually closes, and is configured so that the guide opening 9b can be fitted into the fastening bolt 11 even if the insertion direction of the worker is slightly wrong. is there.

The diameter of the constricted portion of the guide opening 9b is configured to be smaller than the diameter of the fastening bolt 11, and by strongly pressing the inter-axis spacer 9, the portion of the guide opening 9b passes through the fastening bolt 11, The fastening bolt 11 is stably fitted to the next bolt holding arc 9a.

In a state where the bolt holding arc portion 9a is also contracted, the diameter is smaller than the diameter of the fastening bolt 11, and the fastening bolt 11 is sandwiched between the bolt holding arc portions 9a to prevent the spacer 9 between the shafts from dropping. It is.

The base following the bolt holding arc portion 9a is formed as an elasticity urging portion 9c, and gives the holding force of the fastening bolt 11 by the bolt holding arc portion 9a.

In the embodiment shown in FIGS. 6 and 7, a stopper constricted portion 9d is further provided, so that even if the spacer 9 between the shafts is strongly pushed, the fastening bolt 11 can go deeper into the elastic biasing portion 9c. It is configured so as not to exist.

When the inter-axis spacer 9 is inserted to form a gap between the shaft set 2 and the shaft set 3, it is inserted as shown in FIG. 2 to FIG.

Then, finally, the fastening bolt 11 screwed into the fastening nut 12 is further tightened by an impact wrench, and
The retightening is completed in a state where the side surface of the inter-axis spacer 9 is pressed by the shaft set 3.

Even when the fastening bolt 11 is further tightened, the inter-axis spacer 9 is a steel plate having a hairpin shape as a whole, and includes a guide opening 9b, a bolt holding arc portion 9a, and an elastic biasing portion 9c in the middle. With this configuration, the section modulus is also increased, so that even if the fastening bolt 11 and the fastening nut 12 are further tightened, it is possible to sufficiently withstand the fastening force.

(F) Effects of the Invention The present invention is configured as described above, and has the following effects.

First, as compared with the conventional spacer hook 19, since it has the bolt holding arc portion 9a, the sweeping bolt 11 can be gripped by elasticity, so it is further tightened by an impact wrench. Even if it vibrates in this case, the inter-axis spacer 9 does not come off and fall off.

Secondly, since it is formed by press forming a steel plate, the material cost and the processing cost are reduced, and an inexpensive spacer between shafts can be provided.

Thirdly, it is press-formed from a steel plate, but is bent into a hairpin shape, and further comprises a guide opening 9b, a bolt holding arc portion 9a and an elastic biasing portion 9c to increase the number of bent portions. The section modulus can be increased by the bent portion, and the side surface of the spacer 9 between the shafts is pressed between the shaft assembly 2 and the shaft assembly 3 by tightening the fastening bolts 11 and the fastening nuts 12. The strength could be made sufficiently to withstand the pressing force.

Fourth, since the long inter-axis spacer is inserted with the elastic biasing portion 9c even when inserted between the shaft set 2 and the shaft set 3, it is easy to insert, and even after the insertion, there is a sufficient gap. Can be held.

Fifth, in the case of a synthetic resin-made inter-shaft spacer, the spacer is deteriorated during a long period of time and is crushed by the fastening force of the fastening bolt 11, and the gap may rattle. Destruction due to alteration does not occur.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which an inter-axial spacer 9 is assembled at a portion of the shaft assembly 2 and the corner post 10, and FIG. 2 is a state in which the inter-axial spacer 9 is inserted between the shaft assembly 2 and the shaft assembly 3. FIG. 3 is a perspective view showing the same inserted state,
4 is a perspective view showing a state where the inter-axis spacer 9 is hung by its own weight, FIG. 5 is a front perspective view showing an inserted state, FIG. 6 is a perspective view showing a configuration of the inter-axis spacer 9, and FIG. FIG. 8 is a plan view showing another configuration of the inter-axis spacer 9, FIG. 9 is a side view, and FIGS. 10 and 11 are front views showing a conventional spacer hook 19. 1a, 2,3… Shaft assembly 9… Spacer between shafts 9a …… Bolt holding arc 9b …… Guide opening 9c …… Elastic biasing part 10 …… Corner post 11 …… Tightening bolt 12 …… Tightening nut

────────────────────────────────────────────────── ─── front page continued (51) Int.Cl. ⁶ identifications FI E04B 2/56 622 E04B 2/56 622C 622K 622B 622J 642 642B 651 651H 651J (56) reference JitsuHiraku Akira 55-141647 (JP, U) Shokai Sho 60-68102 (JP, U) "Mechanical element handbook fixed from the viewpoint of patent", JPO, published by the Japan Institute of Invention and Innovation (issued September 25, 1980), pp. 88-92. Figure 389 Figure 403. Refer to Fig. 406. (58) Field surveyed (Int.Cl. ⁶ , DB name) E04B 2/56 F16B

Claims (1)

(57) [Scope of request for utility model registration] 1. A gap is formed when fastening is performed by a fastening bolt 11 and a fastening nut 12 in a state where a gap is formed between the frame 2 and the frame 3 or between the frame 2 and the corner post 10. The inter-axis spacer 9 is formed into a hairpin shape by bending a strip-shaped steel plate, and a guide opening 9b is provided at the tip. The diameter of the constricted portion of the guide opening 9b is smaller than the diameter of the fastening bolt 11. Then, by strongly pressing the spacer 9 between the shafts, the portion of the guide opening 9b is configured to pass through the outer periphery of the fastening bolt 11, and then the bolt holding arc portion 9a is provided, and the portion of the bolt holding arc portion 9a is also provided. In the contracted state, the diameter of the fastening bolt 11 is made smaller than the diameter of the fastening bolt 11, the outer periphery of the fastening bolt 11 is sandwiched by a bolt holding arc portion 9a to prevent the spacer 9 between the shafts from dropping, and the resilient biasing portion 9c And the portion of the elastic biasing portion 9c is a gap between the shaft set 2 and the shaft set 3. As a structure protruding outwardly, a gripping portion to be gripped by a fingertip is also used, and the fastening bolt 11 screwed into the fastening nut 12 is tightened further, so that the side faces of the inter-axis spacer 9 by the shaft set 2 and the shaft set 3. An inter-axis spacer characterized by being configured to press against.