JPH0436197Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Purpose of the invention] (Field of industrial application) This invention is a method for moving lighting equipment, wiring parts, etc. from L-shaped steel, channel steel, and other construction materials in building structures in any direction. This invention relates to a suspension support fitting that is tilted and suspended.

(Prior Art) Conventionally, in order to suspend and support various wiring devices from various construction materials, the applicant has proposed, for example, as shown in FIG. To provide a suspension support fitting equipped with a nut curved in an arc shape to enable dynamic adjustment. This suspension support fitting includes a support fitting main body 101 which is approximately U-shaped on the side and is screwed to a predetermined construction material S, and a substantially U-shaped suspension in the front which is swingably supported by the support fitting main body 101. Hanging metal fitting 102 and this hanging metal fitting 10
An engaging nut board 1 into which a hanging rod member B inserted through the curved bottom wall of No. 2 is screwed and engaged with the inner surface of the curved bottom wall.
It consists of 03. Then, the engagement nut plate 103
is curved in an arc so as to be in close contact with the inner surface of the curved bottom wall of the hanging fitting 102 and to slide in correspondence with the inclination of the hanging rod member B to be supported, and has a female thread into which the hanging rod member B is screwed. It has been formed.

In order to make it possible to provide this type of conventional engagement nut disc 103 at a low cost, a suitably thick sheet material is used as the material, and this is pressed and curved.
Furthermore, the female thread is formed into a tap structure.

Furthermore, a fixing nut 104 is screwed into the outer surface of the curved bottom wall of the hanging fitting 102 in order to securely fix the construction material S to the hanging fitting 102, and the bottom wall is clamped together with the engaging nut disk 103. In this fixing nut 104, a chrysanthemum washer 105 is interposed between the fixing nut 104 and the bottom wall of the hanging fitting 102 to prevent the nut from loosening.

On the other hand, in addition to this, the applicant has
We also provide suspension support metal fittings such as those disclosed in Publication No. 62116 and Publication No. 8120-8120. Of these, Utsukai Showa 55-
The suspension support fitting of Publication No. 62116 has a main body with an approximately U-shaped side surface in which an opening for sandwiching a predetermined construction material is formed between the upper and lower plates facing each other, and a tip on the side of the construction material sandwiched within the opening. In the suspension support fitting, which is composed of a fixing screw provided on the upper plate so as to be able to move forward and backward for the purpose of clamping, and a suspension support body on which the hanging rod member is suspended and supported and connected to the lower plate, the upper plate and the fixing member are A shock absorbing material is interposed between the set screw and the nut portion to which the set screw is screwed, and separately from this, the suspension rod member is supported from the suspension support with the shock absorbing material interposed therebetween.

In addition, the suspension support fitting disclosed in Japanese Utility Model Publication No. 48-8120 has protrusions protruding along the inner edge of the pivot hole drilled on both left and right plates of the angle adjustment fitting to prevent the angle adjustment fitting from steadying. It is a diagram.

(Problems to be Solved by the Invention) However, according to the structure of the engagement nut plate 103 (FIG. 4) made by conventional press working, since the tap is bent after forming, the engagement nut disposed inside the hanging metal fitting 102 is When screwing the hanging rod member B into the nut board 103 from outside the hanging fitting 102, the engaging nut board 1
There was a problem in that the tap on the curved surface of 03 itself hit, making it difficult to screw in the hanging rod member B smoothly.

Also, a chrysanthemum washer 1 for preventing loosening of the hanging rod member B.
05 has its rough surface abutted against the outer surface of the curved bottom wall of the hanging fitting 102, but since the curved bottom wall itself is curved, the actual contact area is extremely small.
The loosening prevention function of the hanging rod member B was not fully exhibited.

On the other hand, in the suspension support fitting disclosed in Japanese Utility Model Application Publication No. 55-62116, although the suspension rod member is supported from the suspension support with a shock absorbing material interposed, the suspension support is tightened by sandwiching the suspension support. As a result, when vibration or impact is applied, the shock absorber moves slightly upward, and the hanging rod member screwed into the shock absorber tends to come off from the shock absorber.

In addition, in the suspension support fitting of Utility Model Publication No. 48-8120, although the angle adjustment fitting can be moved back and forth, since the hanging bolt is fixed to the angle adjustment fitting, the hanging bolt itself cannot be moved from side to side. Nakatsuta.

Therefore, this idea was devised in view of the above points, and it is possible to secure a sufficient length for screwing in the hanging rod member, and also to make it easy to screw in to ensure reliable engagement and support. The purpose of the present invention is to provide a suspension support fitting which improves stability by increasing the contact area of a washer to the outer surface of a curved bottom wall of the fitting and further increases tightening by screwing.

[Structure of the invention] (Means for solving the problem) In order to achieve the above-mentioned purpose, this invention includes a supporting metal body whose side surface is approximately U-shaped and which is screwed and compressed to a predetermined construction material; A hanging metal fitting which is approximately U-shaped from the front and is swingably supported by the support metal body, and a hanging rod member inserted through the curved bottom wall of this hanging metal fitting is screwed into and engaged with the inner surface of the curved bottom wall. In the suspension support fitting, the suspension fitting is formed by providing an elongated suspension hole in the curved bottom wall, which is long in the left-right direction, and the nut body includes: It is thickened in the screwing direction of the hanging rod member, has a curved surface similar to the curvature of the inner surface of the curved bottom wall of the hanging fitting, and is formed into a half-split cylinder shape that slides into contact with the inner surface of the curved bottom wall of the hanging fitting. At the same time, locking protrusions that engage with both side edges of the curved bottom wall are protruded on both sides of the lower surface, and a clamping nut is provided on the upper part of the hanging rod member to clamp and tighten the curved bottom wall together with the nut body. A washer is interposed between the clamping nut and the curved bottom wall, and the washer has four round boss-shaped contact protrusions that abut the outer surface of the curved bottom wall on the periphery surrounding the hanging rod member, and , is characterized in that a chrysanthemum washer is interposed between the clamping nut and the washer.

(Function) In the hanging support metal fitting according to this invention, the support metal body is attached to the construction material by tightening the mounting screws, and lighting equipment, etc. are attached to the hanging metal fitting connected to the support metal body. A hanging rod member for suspending a predetermined wiring device such as a wiring component is engaged and supported.

The suspension rod member is engaged with and supported by the suspension metal fitting by screwing nut bodies and clamping nuts arranged inside and outside of the curved bottom wall of the suspension metal fitting into the suspension rod member, and clamping and compressing the curved bottom wall.

At this time, since the nut body is thick, the hanging rod member can be screwed in in the same way as a normal nut.
In addition, the circular boss-shaped abutting protrusion of the washer interposed between the clamping nut and the curved bottom wall substantially increases the contact area with the outer surface of the curved bottom wall, and prevents the curved part from bending as the hanging rod member swings. Even if it moves on the outer surface of the bottom wall, it always maintains contact with it. By maintaining the contact state, the nut body and the clamping nut can stably clamp the curved bottom wall.

The locking protrusions of the nut body are engaged with both side edges of the curved bottom wall, and the engaged state prevents the nut body from idling when the hanging rod member is screwed in, and ensures smooth and secure connection. let

(Embodiment) An embodiment of this invention will be described below with reference to FIGS. 1 to 3.

The reference numeral 1 shown in the figure is a supporting metal body 1 which is attached to an L-shaped steel or channel steel used as a construction material S of a building structure and has a substantially U-shaped side surface.
This support body 1 has a mounting screw 2 screwed in from above the U-shaped notch so as to be freely advanced and retractable, and the tip of the mounting screw 2 is pressed against the upper surface of the construction material S, while a mounting piece 3 extending from the lower edge of the notch is constructed. By bringing it into contact with the lower surface of the material S, the construction material S can be held and attached.

A suspension fitting 4 is connected to the support fitting main body 1 and pivotably supported below the notch thereof. This suspension fitting 4 has a curved bottom wall with a curved bottom wall, which is bent into a substantially U-shape from the front, and connected by connecting screws 5 inserted into the left and right side walls and the lower part of the support fitting main body 1. Swing adjustment is possible in the depth direction of the notch in the support body 1 (horizontal direction in FIG. 2).

Further, a hanging rod member such as a hanging bolt for suspending a lighting fixture, wiring parts, or other wiring equipment (not shown) is swingably connected to the hanging fitting 4.
The hanging rod member B is connected to the hanging fitting 4 by penetrating the upper end of the hanging rod member B into an elongated hanging hole 6 that is opened long in the left-right direction in the curved bottom wall of the hanging fitting 4. This can be achieved by inserting the screw into the thick circular nut body 7 that is engaged inside the hanging fitting 4.

The nut body 7 is made thick in the screwing direction of the hanging rod member B, and its lower surface is formed into a curved surface that slides into contact with the inner surface of the curved bottom wall of the hanging fitting 4. A locking protrusion 8 to be engaged is provided in a protruding manner. As shown in the figure, the main body of the nut body 7 is
It is made of a cylindrical material with an outer circumferential surface that has the same curvature as the inner surface of the curved bottom wall of the hanging fitting 4, and is shaped as if it were cut in half, with a female thread in the transverse direction. is formed.

By forming the nut body 7 by halving such a cylindrical material, a sufficient threaded length of the hanging rod member B can be ensured, and it can be provided at a low cost.

Furthermore, a clamping nut 9 for clamping the curved bottom wall together with the nut body 7 is screwed into the hanging rod member B on the outer surface of the curved bottom wall of the hanging fitting 4, and there is a space between the clamping nut 9 and the curved bottom wall outer surface. A washer 10 is interposed. This washer 10 has circular boss-shaped abutment protrusions 11 that abut on both sides of the outer surface of the curved bottom wall of the suspension fitting 4 .
The abutment protrusion 11 is provided to protrude inward from the bottom wall of the washer 10, and as shown in FIG. It is assumed that they are in contact with each other, and the state of contact is maintained even when the hanging rod member B swings. And for example,
The contact protrusions 11 are provided at four locations on the periphery surrounding the hanging rod member B, and furthermore, the contact protrusions 11 on the side of the hanging rod member B are low, and the contact protrusions 11 on the outer side are low. The protrusions 11 may be made higher so that they are double or triple.

Note that a washer 12 may be interposed between the clamping nut 9 and the washer 10 to prevent loosening between them.

Next, an example of its use will be described.

As shown in FIGS. 1 and 2, the support metal body 1 is attached to the construction material S by the screw-locking action of the mounting screws 2, and is connected to the support metal body 1 in a freely swingable manner. The hanging fitting 4 engages and supports a hanging rod member B for suspending a predetermined wiring device.

Note that, normally, the suspension fitting 4, which engages and supports the hanging rod member B, is connected and assembled to the support fitting main body 1, and the supporting fitting main body 1 is attached to the construction material S.

To engage and support the hanging rod member B to the hanging fitting 4, the hanging rod member B to which the clamping nut 9 is screwed is brought from below the hanging fitting 4, and a washer 10 is attached to the outer surface of the curved bottom wall of the hanging fitting 4. is inserted into the curved bottom wall, and screwed into the nut body 7 engaged in the suspension fitting 4. By screwing into the nut body 7, the curved bottom wall is clamped together with the clamping nut 9, and at that time,
The locking protrusions 8 of the nut body 7 are positioned on both side edges of the curved bottom wall and engaged to prevent them from idling.

Since the curved bottom wall of the suspension fitting 4 is curved, the wiring device can be suspended by tilting the suspension member B on the curved surface of the lower surface of the nut body 7 that slides along the curved surface and setting it at a predetermined angle. hold

[Effects of the device] This device is constructed as described above, and has a hanging bracket 4.
Since the hanging hole 6 is provided in the curved bottom wall in the shape of an elongated hole extending in the left-right direction, the supporting hanging rod member B can swing. The nut body 7 into which the hanging rod member is screwed is thick and has a curved surface similar to the curvature of the inner surface of the curved bottom wall of the hanging fitting 4.
Since it comes into sliding contact with the inner surface of the curved bottom wall of the hanging bracket 4, the lower surface of the nut body 7 and the inner surface of the curved bottom wall of the hanging bracket 4 come into contact over a wide range without any gaps, and a large load is applied to the hanging rod member B. Even when the hanging rod member B is bent, the hanging rod member B can be firmly supported. In addition, Natsuto body 7
Since it is formed in a half-cylindrical shape, the hanging rod member B can be firmly supported without taking up space inside the hanging fitting 4. In addition, since the lower surface of the nut body 7 is formed into a curved surface that slides in contact with the inner surface of the curved bottom wall of the suspension fitting 4, it slides along the inner surface of the curved bottom wall of the suspension fitting 4 and smoothly moves the suspension rod member B. Wiring equipment can be suspended by tilting it and setting it at a predetermined angle.

The locking protrusions 8 of the nut body 7 are engaged with both side edges of the curved bottom wall, and the engaged state prevents the nut body 7 from idling when the hanging rod member B is screwed in, thereby ensuring a secure connection. be carried out smoothly.

Further, since the curved bottom wall of the hanging fitting 4 is screwed and clamped by the nut body 7 and the clamping nut 9, the engagement of the hanging rod member B with the hanging fitting 4 is reliable.

A circular boss-shaped contact protrusion 11 of a washer 10 interposed between the curved bottom wall of the hanging fixture 4 and the clamping nut 9
are provided at four locations on the periphery surrounding the hanging rod member B,
Since it comes into contact with the outer surface of the curved bottom wall of the suspension fitting 4, the area of contact with the curved bottom wall becomes substantially large, which improves the stability of the washer 10 itself, and allows both the nut body 7 and the clamping nut 9 to be screwed together. Make full use of clamping. In particular, since the circular boss-shaped contact protrusions 11 are provided at four locations on the periphery surrounding the hanging rod member B, there are four
The contact protrusions 11 are always in contact with the outer surface of the curved bottom wall of the hanging fitting 4, and the hanging rod member B can be stably supported.

In addition, since the washer 12 is interposed between the clamping nut 9 and the washer 10, loosening of both the nut body 7 and the clamping nut 9 can be reliably prevented.

[Brief explanation of the drawing]

Figures 1 to 3 show an embodiment of this invention, with Figure 1 being a front view in use, Figure 2 being a partially cutaway side view, and Figure 3 being an exploded perspective view of the main parts. 4 is a front view of the conventional example in use. S...Building material, B...Hanging rod member, 1...Supporting metal fitting body, 2...Mounting screw, 3...Mounting piece, 4...
Hanging bracket, 5... Connection screw, 6... Hanging hole, 7...
... Nut body, 8 ... Locking projection, 9 ... Clamping nut, 10 ... Washer, 11 ... Contact projection, 12 ...
Chrysanthemum washer, 101... Support metal fitting body, 102... Hanging metal fitting, 103... Engagement nut board, 104... Fixing nut, 105... Washer.

Claims (1)

[Scope of utility model registration request] A support metal body with a substantially U-shaped side surface that is screwed and press-fastened to a predetermined construction material; a suspension metal piece that is approximately U-shaped from the front side and is swingably supported on the support metal body;
In this suspension support fitting, a hanging rod member inserted through the curved bottom wall of the hanging fitting is screwed and a nut body is engaged with the inner surface of the curved bottom wall. An elongated suspension hole is formed in the curved bottom wall, and the nut body is made thick in the direction in which the suspension rod member is screwed in, and the suspension hole is formed by forming a long hole in the curved bottom wall. It has a curved surface similar to that of the suspension fitting, and is formed into a half-cylindrical shape that slides into contact with the inner surface of the curved bottom wall of the suspension fitting, and has locking protrusions on both sides of the lower surface that engage with both sides of the curved bottom wall. A clamping nut that clamps and clamps the curved bottom wall together with the nut body is screwed into the upper part of the hanging rod member, and a clamping nut that clamps and tightens the curved bottom wall is provided between the clamping nut and the curved bottom wall, and is in contact with the outer surface of the curved bottom wall. A suspension characterized in that four circular boss-shaped abutting protrusions are interposed on the periphery surrounding the hanging rod member, and a washer is interposed between the clamping nut and the washer. Hanging support fittings.