JPH0436196Y2 - - 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 that is approximately U-shaped on the side and is screwed and press-fastened to a predetermined construction material S, and a suspension that is approximately U-shaped in the front that is swingably supported on 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 suspension fitting 102 and to slide in accordance 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 be able to provide this kind of conventional engagement nut disk 103 at a low cost, a suitably thick sheet material is used as a material, and this is pressed and bent.
Further, 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 fittings such as those disclosed in Publication No. 62117 and Publication Utility Model Publication No. 15430/1983. Of these, Utsukai Showa 55-
The suspension support fitting of Publication No. 62117 has a main body that is approximately U-shaped on the side and has an opening for sandwiching a predetermined construction material between upper and lower plates facing each other, and a tip on the side of the construction material sandwiched within the opening. In a suspension support fitting consisting of a fixing screw provided on the upper plate so as to be able to move forward and backward to press the suspension rod member, and a suspension support body on which the suspension rod member is suspended and supported and connected to the lower plate, the suspension rod member is It is supported from a suspension support with a shock absorbing material interposed therebetween.

In addition, the suspension support fitting disclosed in Japanese Utility Model Publication No. 49-15430 has a tightening bolt screwed into a screw hole in the back plate, a notch with a flange on both the left and right plates, and a cutout portion with a flange on both the left and right plates, and the right end of the left and right plates. The upper ends of the left and right plates of the angle adjustment fitting are fitted onto the right ends of the left and right plates of the metal fitting body, which have pivot holes drilled in them, and a ring is interposed between the left and right plates of the metal fitting body to form the angle adjustment fitting. At the same time, the upper end of the suspension bolt with a nut screwed into the engagement hole provided at the lower end of the angle adjustment bracket is engaged, and the lower end of the angle adjustment bracket is connected to the suspension bolt. The bolt is detachably attached, and furthermore, engagement notches are bored on both side edges of the lower end of the square metal plate, and a locking protrusion is provided at the lower end of the reinforcing piece. The lower end portion of the cutout portion of the metal fitting body is engaged with the lower edge portions of both left and right plates, and the upper portion of the reinforcing piece is provided on the flange piece of the cutout portion of the metal fitting body.

(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 hanging rod member B was not able to fully exhibit its loosening prevention function.

On the other hand, in the suspension support metal fitting disclosed in Japanese Utility Model Application Publication No. 55-62117, although the suspension rod member is supported from the suspension support with a shock absorbing material interposed, the structure is such that the suspension support is sandwiched and tightened. As a result, when vibration or shock is applied, the shock absorber moves slightly upward, and the hanging rod member to which the shock absorber is screwed tends to come off from the shock absorber.

Furthermore, with the suspension support fittings such as those disclosed in Japanese Utility Model Publication No. 49-15430, although the angle adjustment fittings can be moved back and forth, since the hanging bolts are fixed to the angle adjustment fittings, the hanging bolts themselves cannot be moved from side to side. I couldn't do it.

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 extending in the left-right direction in the curved bottom wall; It has a thick circular shape, and its lower surface is formed into a spherical shape similar to the curvature of the inner surface of the curved bottom wall of the suspension member, and the upper part of the suspension rod member is provided with a clamping nut that clamps and tightens the curved bottom wall together with the nut body. Between this clamping nut and the curved bottom wall, there is a circular boss formed in the shape of an upwardly opening groove with engagement pieces that are engaged with both side edges of the curved bottom wall, and which abuts against the outer surface of the curved bottom wall. The present invention is characterized in that four washers are interposed on the periphery surrounding the hanging rod member, and 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 into the suspension rod member a nut body and a clamping nut arranged inside and outside the curved bottom wall of the suspension metal fitting, and clamping and compressing the curved bottom wall.

At that time, since the nut body is in the shape of a thick circle,
The hanging rod member can be screwed in in the same way as a normal nut. Furthermore, the engaging pieces of the washer interposed between the clamping nut and the curved bottom wall engage with both side edges of the curved bottom wall. This engaged state prevents the spherical portion of the lower surface of the nut body from fitting into the penetrating portion of the hanging rod member in the curved bottom wall and causing it to expand.
This ensures that the nut body and the clamping nut are screwed together and clamped to the curved bottom wall.

The spherical surface of the nut body is made into sliding contact with the inner surface of the curved bottom wall, and smoothly follows the tilting movement of the hanging rod member, thereby making the tilting adjustment smooth. In addition, the circular boss-shaped abutting protrusion of the washer substantially increases the area of contact with the outer surface of the curved bottom wall, and even if the hanging rod member moves on the outer surface of the curved bottom wall as the hanging rod member swings, it will not come into contact with the outer surface of the curved bottom wall. shall be maintained at all times. By maintaining the contact state, the nut body and the clamping nut can stably clamp the curved bottom wall.

(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 B 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 long in the left-right direction in the curved bottom wall of the hanging fitting 4. Thick circle that is inserted and engaged inside the hanging bracket 4〓
It can be obtained by screwing into the shaped nut body 7.

For example, as shown in the figure, the nut body 7 is formed by cutting one end surface of a standard nut into which the hanging rod member B can be screwed into a spherical shape. This spherical surface formation is processed to have the same curvature as the inner surface of the curved bottom wall of the hanging metal fitting 4, and in particular, by sliding contact along the inner surface of the curved bottom wall, the hanging metal fitting 4 is formed in a horizontal direction. (The left-right direction in FIG. 1) is made possible to swing. Of course, it does not inhibit the swinging of the hanging fitting 4 in the groove direction (left-right direction in FIG. 2).

By forming the nut body 7 by cutting a standard nut in this way, a sufficient threaded length of the hanging rod member B can be ensured, and it can be provided at a low cost.

Further, a clamping nut 8 for clamping the curved bottom wall together with a 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 between the clamping nut 8 and the curved bottom wall outer surface, A washer 9 is interposed. This washer 9 is an engagement piece 1 that is engaged with both side edges of the curved bottom wall.
Formed in the shape of a shallow groove with an upward opening,
It has circular boss-shaped abutment protrusions 11 that abut on both sides of the outer surface of the curved bottom wall. The abutment protrusion 11 is provided to protrude inward from the bottom wall of the washer 9, 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. For example, the abutment protrusions 11 are provided at four locations on the periphery surrounding the suspension rod member B, and furthermore, the abutment protrusions 11 on the side of the suspension rod member B are low;
The abutting protrusions 11 on the outside may be made higher so that they are double or triple.

Note that a washer 12 may be interposed between the clamping nut 8 and the washer 9 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 hanging fitting 4 that engages and supports the hanging rod member B is connected and assembled to the supporting 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 8 is screwed is brought from below the hanging fitting 4, and a washer 9 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 and clamped together with the clamping nut 8, and the engaging pieces 10 of the washer 9 are positioned on both side edges of the curved bottom wall and engaged.

Since the curved bottom wall of the hanging fitting 4 is curved, the wiring device is suspended by tilting the hanging rod member B along the curved surface and setting it at a predetermined angle.

[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 a long hole extending in the left-right direction, the hanging rod member B to be supported can swing. Further, the nut body 7 into which the hanging rod member B is screwed has a thick circular shape, and its lower surface is formed into a spherical shape similar to the curvature of the inner surface of the curved bottom wall of the hanging fitting 4. The lower surface of the nut body 7 and the inner surface of the curved bottom wall of the suspension fitting 4 come into contact over a wide area without any gaps, and even when a large load is applied to the suspension rod member B, the suspension rod member B is held firmly. I can support it. In addition, the nut body 7 into which the hanging rod member B is screwed has a thick circular shape and its lower surface is formed into a spherical shape. It is also extremely easy to work with.

Further, since the curved bottom wall of the hanging fitting 4 is screwed and clamped by the nut body 7 and the clamping nut 8, the engagement of the hanging rod member B with the hanging fitting 4 is reliable.

Further, the washer 9 interposed between the curved bottom wall of the hanging fixture 4 and the clamping nut 8 is formed in the shape of an upwardly opening groove with engaging pieces 10 that are engaged with both side edges of the curved bottom wall. This prevents the spherical part of the lower surface of the clamping nut 8 from fitting into the suspension hole 6 and expanding it, and prevents the nut body 7 and clamping nut 8 from clamping the curved bottom wall. ensure that it is maintained. Further, the circular boss-shaped abutting protrusions 11 of the washer 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, the contact area with the curved bottom wall becomes substantially large, which improves the stability of the washer 9 itself, and makes it possible to sufficiently screw in and tighten both the nut body 7 and the clamping nut 8. to demonstrate. especially,
Since the circular boss-shaped abutment protrusions 11 are provided at four locations on the periphery surrounding the suspension rod member B, the four abutment protrusions 11 are always in contact with the outer surface of the curved bottom wall of the suspension fitting 4, and the suspension is suspended. The rod member B can be stably supported.

In addition, since the washer 12 is interposed between the clamping nut 8 and the washer 9, loosening of both the nut body 7 and the clamping nut 8 can be reliably prevented.

[Brief explanation of drawings]

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 ... Clamping nut, 9 ... Washer, 1
0...Engagement piece, 11...Abutment protrusion, 12...Chrysanthemum washer, 101...Supporting 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. A long hole-shaped suspension hole is provided in the curved bottom wall, and the nut body has a thick circular shape, and its lower surface is formed with a curvature of the inner surface of the curved bottom wall of the suspension fitting. A clamping nut, which is formed in a similar spherical shape and clamps and clamps the curved bottom wall together with the nut body, is screwed into the upper part of the hanging rod member. The washer is formed in the shape of an upward opening groove with an engaging piece to be engaged, and has four circular boss-shaped abutment protrusions that abut the outer surface of the curved bottom wall on the periphery surrounding the hanging rod member. A suspension support fitting characterized in that a chrysanthemum washer is interposed between the clamping nut and the washer.