JPH0312107Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field of the invention] This invention relates to a wedge-shaped connecting fitting, and is used, for example, to connect a building site and a root girdle when installing temporary scaffolding, or to
This invention relates to a wedge-shaped connecting fitting that is ideal for connecting and disconnecting vertical pipes and appropriate horizontal members for temporary construction work, such as connecting building sites and scaffolding brackets.

[Technical background of the invention and its problems] Conventionally, in temporary construction work, clamp fittings have been mainly used as a means for connecting this type of vertical pipe and appropriate horizontal members. However, this connection means using clamp fittings has the drawback that the vertical pipe and the appropriate horizontal members are connected by tightening the clamp fittings with the screws, respectively, and therefore it takes time and effort to connect and release the connection. ,Moreover,
There were also some drawbacks, such as the possibility that the screw threads would be crushed during this work, making it impossible to reuse the product. Furthermore, since the number of clamp fittings used at temporary construction sites is extremely large, it takes effort to manage and transport the clamp fittings themselves when they are not in use, which has been an obstacle to shortening the temporary construction period.

For this reason, for example, a wedge connection structure for structural members, etc., described in Japanese Patent Application Laid-Open No. 53-97219, has been provided. This applies to wedge-bonded structures that releasably connect two or more members, particularly a column and a tie beam in an assembly such as a construction scaffold, trestle, or shelving structure. A notched hole is provided, a wedge plate is provided in the other structural member to be fixed, and the wedge plate supports a bolt projecting outward from the wedge plate, and the bolt is formed to be lockable in each notched hole. , a wedge that fits the wedge plate is formed so as to be insertable between the structural member and the wedge plate of another structural member. However, since one or more notches are provided in the pipe-shaped structural material, this method has the disadvantage that the strength of the pipe-shaped structural material itself decreases and the durability of the pipe-shaped structural material is significantly impaired. It was hot.

[Means for solving the problem] Therefore, this invention has a locking ring 1 that is fixed to the vertical pipe X as appropriate, and a locking ring 1 that is fixed to the end of the horizontal member Y and can be hooked to the locking ring 1. Na hook 2A
The locking body 2 includes a locking body 2 and a wedge body 3 that tightens the locking state between the locking ring 1 and the locking body 2.
The locking ring 1 is formed into a substantially bowl shape with its opening facing upward, and is fixed at a predetermined position on the vertical pipe X by passing through the center thereof. At this time, the side plate 1A of the locking ring 1 is provided around the outer surface of the vertical pipe X at an appropriate distance. In addition, a pair of hooks 2A having a substantially hook-shaped side surface that can be hooked from above on the inside of the side plate 1A of the locking ring 1 are arranged parallel to each other at appropriate intervals, and from the base end of the hooks 2A downwardly. Tighten jaw piece 2 towards
The locking body 2 is formed by connecting the lower end portions of the tightening jaws 2B and the tip portions of the hooks 2A via a connecting member 2C. Furthermore, the wedge body 3 can be inserted between the pair of hooks 2A from above the locking body 2, and the top and bottom of the wedge body 3 are attached to the outer surface of the vertical pipe X located above and below the locking ring 1. It is provided with an abutment piece 3A that can be abutted, and is formed in a substantially U-shape on the side so as to straddle the locking ring. Moreover, wedge sides 3B are provided at the proximal end of the wedge body 3 so as to be able to come into contact with the connecting member 2C that connects the proximal end portion of the hook 2A of the locking body 2 and the lower end portion of the tightening jaw piece 2B. . Then, by adopting a means for configuring the wedge body 3 to be removably interposed between the vertical pipe X and the base end portion of the hook 2A to tighten the locking ring 1 and the hook 2A, as mentioned above, In addition to making it possible to eliminate the difficulties such as It is now possible to provide a wedge-shaped connecting fitting that is extremely easy to carry, transport, and manage.

[Embodiments of the invention] This invention will be described in detail below with reference to illustrated examples.

This invention consists of a substantially bowl-shaped locking ring 1 that is fixed to a vertical pipe A locking body 2 having a pair of parallel hooks 2A, and a wedge 3 interposed between the hooks 2A of the locking body 2 to tighten the locking state between the locking ring 1 and the locking body 2. It is made up of.

The locking ring 1 has a substantially bowl shape with its opening facing upward, and its center portion is penetrated by the vertical pipe X, and its side plate 1A is disposed around the outer surface of the vertical pipe and, moreover,
It is fixed to the vertical pipe X by means such as welding. The locking ring 1 is fixed in advance to an appropriate position on the vertical pipe X, such as a root connection position in a building site, a bracket connection position for mounting a scaffolding board, etc. (see FIG. 1). In addition, the side plate 1A of the locking ring 1 is inclined (approximately 8 degrees) toward the vertical pipe X as appropriate with respect to the vertical direction, thereby stabilizing the state of engagement between the side plate 1A and the hook 2A of the locking body 2. It is designed so that it can be still,
In the figure, 1B indicates a water drain hole formed at the bottom of the locking ring 1, and this drain hole 1B is provided to prevent rainwater from accumulating inside the locking ring 1.

The locking body 2 is fixed to the end of an appropriate horizontal member Y, such as a root string or a bracket, which is connected to the vertical pipe A pair of hooks 2A having a hook shape are arranged in parallel with appropriate intervals. Then, the tightening jaw pieces 2B are respectively extended downward from the base end portion of the hook 2A, and the lower end portions of the tightening jaw pieces 2B are connected to each other via the connecting member 2C. They are configured to be connected to each other via a connecting member 2C. By the way, the illustrated hook 2A is formed with an appropriate inclination so that the inner edge of the end portion of the hook 2A is closely engaged with the inside of the inclined side plate 1A of the locking ring 1. Moreover, the tip of hook 2A is
It is reinforced by the connecting member 2C. Incidentally, a cylindrical rivet or the like is planned for the connecting member 2C that connects the lower end portions of the tightening jaw pieces 2B and the tip portions of the hooks 2A, respectively. Further, the entire locking body 2 is constructed by bending a single plate. That is, the pair of hooks 2A, which are arranged in parallel with an appropriate interval, are integrally connected at their base end portions.

The wedge body 3 is connected to a pair of hooks 2 from above the locking body 2.
Vertical pipes X that can be inserted between A and located above and below the locking ring 1 at the top and bottom of the tip.
It includes a contact piece 3A that can come into contact with the outer surface, and
It has a substantially U-shaped side surface that straddles the locking ring 1, and the hook 2 of the locking body 2 is attached to the base end thereof.
Wedge sides 3B that can come into contact with the connecting member 2C that connects the proximal end portion of A and the lower end portion of the tightening jaw piece 2B.
It is formed by providing In addition, the wedge side 3B of the illustrated example
When the contact piece 3A is in contact with the outer surface of the vertical pipe is in contact with the connecting member 2C connecting the lower end portions of the clamping jaws 2B of the locking body 2, and the wedge body 3 moves downward, so that the locking body 2 is connected to the vertical pipe Move away from ring 1) and connect the tip of hook 2A with locking ring 1.
(See Fig. 3). That is, the wedge side 3B is formed in an appropriately inclined state (approximately 10 degree inclination) so that its upper end is closer to the cross member Y with respect to the vertical direction, and the lower end of the wedge body 3 is narrowed. It is formed.

In the figure, 3C indicates a wedge recess, and this wedge recess 3C is a cutout on the side edge of the distal end of the locking body 2 so that the locking ring 1 and the wedge body 3 do not contact each other when tightened by the wedge body 3. It is.

Further, the abutting piece 3A is formed by notching each of the vertical pipe X abutting ends of the wedge body 3 to form a U-shape on the side, and by bending the C-shaped ends in opposite directions. It is formed so as to be in close contact with the outer surface of the pipe X without slipping. The abutment piece 3A may be, for example, a plate-like abutment piece 3A curved to match the outer surface of the vertical pipe X and fixed to the tip of the wedge body 3 (not shown). .

This invention is constructed as described above, and next we will explain its usage examples. First, the vertical pipe
The tip of the hook 2A of the locking body 2 is locked to the inner side of the side plate 1A from above the locking ring 1. and,
The contact pieces 3A of the wedge body 3 inserted between the pair of hooks 2A are brought into contact with the outer surface of the vertical pipe A connecting member 2C that connects the proximal end portion of the hook 2A and the lower end portion of the tightening jaw piece 2B.
contact each other. After this, the upper end portion of the wedge body 3 is hit with a hammer or the like to move the wedge body 3 downward,
By tightening the engagement between the tip of the hook 2A and the locking ring 1, the vertical pipe X and the horizontal member Y are connected. In addition, in order to release this connected state, by lifting the lower end of the wedge 3 upward, the tightening state between the tip of the hook 2A and the locking ring 1 is released, and the locking body 2 is locked. Remove from retaining ring 1.

[Effects of the invention] Therefore, this invention provides a locking ring 1 that is appropriately fixed to the vertical pipe
and a wedge body 3 that tightens the locked state between the locking ring 1 and the locking body 2, and the locking ring 1 has a substantially bowl shape with its opening facing upward. At the same time, the vertical pipe A pair of hooks 2A having a substantially hook-shaped side surface that can be hooked from above are arranged in parallel with appropriate intervals, and tightening jaw pieces 2B are respectively extended downward from the proximal end portions of the hooks 2A. ,
Between the lower end portions of this tightening jaw piece 2B and the hook 2
The wedge body 3 can be inserted between the pair of hooks 2A from above the locking body 2, and the wedge body 3 can be inserted between the pair of hooks 2A from above the locking body 2, and the wedge body 3 can be inserted between the pair of hooks 2A from above the locking body 2. It is provided with a contact piece 3A that can come into contact with the outer surface of the vertical pipe X located above and below the locking ring 1, and has a substantially U-shaped side surface that straddles the locking ring 1, and its base end is an alligator. is formed by providing wedge sides 3B that can come into contact with the connecting member 2C that connects the base end portion of the hook 2A of the locking body 2 and the lower end portion of the tightening jaw piece 2B, and connects the wedge body 3 to the vertical pipe X. Since the locking ring 1 and the hook 2A are removably interposed between the locking ring 1 and the base end portion of the hook 2A, the connecting fitting itself has a simple structure and is strong and durable. Moreover, it becomes possible to quickly connect and disconnect the vertical pipe X and the horizontal member Y during temporary construction work with extremely simple work. In addition, the connection state between the vertical pipe X and the horizontal member Y can be maintained reliably, and the
A solid connection will be achieved. Furthermore, since it is possible to transport and manage the vertical pipe etc., which will help shorten the temporary construction period.

In particular, since the locking ring 1 is fixed to the vertical pipe X, the strength of the vertical pipe X itself does not decrease at all.
There is no risk that the durability of the vertical pipe X will be impaired.

In addition, since the side plate 1A of the locking ring 1 is provided around the outer surface of the vertical pipe X at an appropriate distance, the end portion of the alligator hook 2A inside the side plate 1 can be securely and securely secured using this distance. It can be hung easily.

Furthermore, since the locking body 2 has a pair of hooks 2A disposed in parallel with appropriate intervals, the wedge body 3 can be inserted into and supported by the locking body 2 by utilizing this spacing.

Since the lower end portions of the tightening jaw pieces 2B and the tip portions of the hooks 2A are connected via the connecting member 2C, the strength and robustness of the locking body 2 itself is increased.

In addition, the wedge body 3 has a contact piece 3A that can come into contact with the outer surface of the vertical pipe X located above and below the locking ring 1 at the top and bottom of its tip, and is designed to straddle the locking ring 1. Since the side surface is formed into a substantially U-shape, the abutment piece 3A of the wedge body 3 stably abuts the outer surface of the vertical pipe X, and the wedge body 3 abuts against the locking ring 1 when tightened by the wedge body 3. It will be possible to prevent this.

Since wedge sides 3B are provided at the base end of the wedge body 3, the wedge sides 3B are capable of coming into contact with the connecting member 2C that connects the base end portion of the hook 2A of the locking body 2 and the lower end portion of the tightening jaw piece 2B. By simply driving the upper end of the wedge body 3 with a hammer or the like, the locking state between the locking ring 1 and the locking body 2 can be securely and easily tightened by the wedge body 3, and moreover, the locking state can be strongly tightened. state will be obtained. Further, the locking body 2 can be removed from the locking ring 1 by simply knocking up the lower end portion of the wedge body 3 to loosen the wedge body 3.

[Brief explanation of the drawing]

The drawings illustrate this invention. Figure 1 is a perspective view showing the state of use, Figure 2 is an exploded perspective view, and Figure 3 is an exploded perspective view.
The figure is a longitudinal sectional view, and FIG. 4 is a plan view. X...Vertical pipe, Y...Horizontal material, Z...Scaffolding board,
1... Locking ring, 1A... Side plate, 1B... Drain hole, 2... Locking body, 2A... Hook, 2B... Tightening jaw piece, 2C... Connection member, 3... Wedge body, 3A …
...Abutting piece, 3B...Wedge side, 3C...Wedge recess.

Claims (1)

[Scope of utility model registration request] A locking ring that is fixed to the vertical pipe as appropriate, a locking body that is properly fixed to the end of the cross member and has a hook that can be hooked to the locking ring, and a locking ring and the locking body. The locking ring has a substantially bowl shape with its opening facing upward, and is penetrated through the center of the vertical pipe, with its side plate extending from the outer surface of the vertical pipe as appropriate. The locking body includes a pair of hooks having approximately hook-shaped sides that can be hooked from above inside the side plate of the locking ring, and are arranged in parallel at appropriate intervals. The wedge body is formed by extending downward from the base end of the hook, and connecting the lower end portions of the tightening jaw pieces and the distal end portions of the hooks via a connecting member. , which can be inserted between the pair of hooks from above the locking body, and has abutment pieces on the top and bottom of the top and bottom of the locking body that can come into contact with the outer surface of the vertical pipe located above and below the locking ring, The side surface has a substantially U-shape that straddles the locking ring, and its base end can come into contact with a connecting member that connects the hook base of the locking body and the lower end of the tightening jaw piece. The wedge is formed with a wedge edge, and is configured such that the wedge body is removably interposed between the vertical pipe and the base end portion of the hook to tighten the locking ring and the hook. Mold connection fittings.