JPH079106B2 - Receiver for hanging bolts such as ceilings - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a mounting member such as a deck plate for mounting suspension bolts for suspending various wirings and pipes such as the ceiling and the back of a building. The present invention relates to a receiver for a hanging bolt such as a ceiling mounted in a receiving groove.

[Prior Art] Conventionally, as this type of receiver, one described in JP-A-63-96308 can be mentioned. That is, as shown in FIG. 16, the receiving tool B includes a screw cylinder 33 having a female screw 32 for engaging with a male screw of a suspension bolt 31, and a collar portion 34 that can be engaged with the receiving groove and a screw portion. A locking plate 37 having a pair of upright pieces 36 is provided between the flange 34 and the grip 35, and a locking plate 37 is provided between the locking part 37 and the grip 35 for rotating the cylinder so as to face each other. A spring 38 for urging the locking plate 37 upward is interposed on the lower surface.

[Problems to be Solved by the Invention]

The conventional receiver B having the above-described structure has an advantage that it can be easily and easily attached to the receiving groove by one-touch operation, but the handle 35 is fixed to the screw tube 33 by welding or caulking. Therefore, when assembling and manufacturing the conventional receiving tool B, the handle 35 must be attached to the lower portion of the screw cylinder 33 by the fixing means after the locking plate 37 and the spring 38 are inserted into the screw cylinder 33. In addition, the assembly / manufacturing of the product requires troublesome work, and the manufacturing of the product is not efficient.

Further, if the dew condensation preventing material is sprayed on the wall surface behind the ceiling after the receiving tool B is attached to the receiving groove, the inside of the screw cylinder 33 may be clogged with the dew condensation preventing material. There was a problem that it was difficult to screw it into the 33, and the work efficiency was hindered.

Furthermore, a large number of hanging bolt receivers are used to suspend and hold various wiring and pipes (such as racks for electrical wiring, air-conditioning pipes, water pipes, and fire-proof pipes) for ceilings and under ceilings. Although it is mounted in a receiving groove such as, there is a problem that it is not possible to easily discriminate which receiving tool it corresponds to because various kinds of wiring and piping pass through the ceiling.

Therefore, the present invention has been made based on the above circumstances, and a hanging bolt receiver that can be easily attached to the receiving groove by one-touch operation is easily assembled and efficiently manufactured, and is attached to the receiving groove. An object of the present invention is to provide a hanging bolt receiver such as a ceiling that allows smooth operation of screwing and mounting a hanging bolt without trouble even if a dew condensation preventing material is sprayed later. Further, it is an object of the present invention to provide a suspension bolt receiver for a ceiling or the like that can easily identify a corresponding receiver for a wide variety of wirings and pipes arranged on the ceiling and the back of the ceiling.

[Means for Solving the Problems]

In order to achieve the above object, a suspension bolt receiver for a ceiling or the like according to the present invention is a collar that protrudes from below between opposing walls of a receiving groove of a mounting member and rotates at a substantially right angle to engage in the receiving groove. The suspension nut is installed on the upper part, and a pair of locking projections protruding laterally is arranged on the lower part, and it is inserted between the opposing walls of the receiving groove at the lower position of the flange part to regulate the rotation of the flange part. A locking plate having a pair of upstanding pieces, a coil spring arranged on the lower surface of the locking plate to urge the locking plate upward, and an engaging recess for snap-fitting with the locking projection. It is provided on the inner peripheral surface side of the wall, and on the outer peripheral surface side of the rising piece wall, an annular grip body having an annular groove into which the lower end portion of the coil spring is fitted, and a destructible gate piece on the bottom surface are provided. The protective cap is integrally attached to the lower surface of the handle body. Further, the protective cap may be colored differently depending on the object to be suspended and held.

[Action]

The suspension bolt receiver of the present invention is configured separately from the suspension nut and the handle body with the protective cap, and after the locking plate and the coil spring are inserted into the suspension nut, the coil spring is kept in a compressed state. Push the locking projection of the hanging nut to the position of the engaging recess of the handle, snap it into place using the resilience of the rising wall, then release the compressed state of the coil spring and remove the lower end of the coil spring. It is used by assembling it by fitting it into the annular groove of the handle body. On this occasion,
Since the coil spring fitted in the annular groove on the outer peripheral surface side of the rising piece wall regulates the elastic force of the rising piece wall, the locking projection is fitted in the engaging concave portion in a non-removable manner, and therefore, the hanging nut and It is firmly connected to the handle with a protective cap so that it cannot be separated.

In addition, the protective cap that is integrally attached to the lower surface of the handle body prevents the anti-condensation material from entering the gate piece on the bottom surface of the protective cap when the anti-condensation material is sprayed, so that the suspension nut will be blocked inside There is no fear, even when mounting the suspension bolt on the suspension nut, the gate piece can be crushed and easily screwed into the suspension nut.

Furthermore, if the protective cap is colored differently depending on the type of object to be suspended and held, that is, the ceiling, rack for electrical wiring, air conditioning pipes, water pipes, fire protection pipes, etc. The corresponding object can be suspended and held quickly and easily by using the mark as a mark.

〔Example〕

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.

The hanging bolt receiver A shown in FIGS. 1 to 10 is the most typical embodiment of the present invention. Reference numeral 1 is a hanging nut in which a female screw 2 that fits into a hanging bolt so that it can be screwed is engraved in a central through hole 3. At the upper part of the hanging nut 1, a receiving groove, for example, a space between opposing walls of a dovetail groove 21 is provided. There is a collar portion 4 which can be engaged in the dovetail groove by rushing in from below and rotating approximately 90 degrees in the horizontal direction. Locking protrusions 5, 5 are provided. The collar portion 4 is formed in a shape that is largely overhanged in the front-rear direction and cut off in the left-right direction. Further, the lower surface of the collar portion 4 which extends forward and backward is formed in a downward taper shape from the tip to the base end, and the inside of the dovetail groove 21 is formed in the central portion along the taper surface from the tip to the base end. A flat surface 4A is provided which conforms to the side surface and comes into surface contact, and a curved surface 4B is formed on the remaining taper surface so as to bend inward from the flat surface 4A to the left and right sides (Figs. 1 and 7). See figure). Further, the width D of the flange portion 4 which is largely protruded in the front-rear direction is formed larger than the width d1 of the lower end portion of the dovetail groove 21, and the width of the left and right flange portions 4 cut off (hereinafter,
It is called "small width part". ) D is formed smaller than the width d1 of the lower end portion of the dovetail groove 21 (see FIGS. 5 and 11).

Reference numeral 6 denotes a locking plate that comes into close contact with the lower surface of the dovetail groove 21 when the hanging bolt 23 is connected and that prevents the collar portion 4 from rotating. A through hole 7 to be inserted is bored in the central portion, and a pair of upright pieces 8, 8 formed to be smaller than the width d1 of the lower end portion of the dovetail groove 21 are provided to face each other in the front-rear direction. Dovetail 21 on both left and right sides
Has a locking piece 6A that is larger than the width d1 of the lower end of the locking piece 6A.

Reference numeral 9 denotes a coil spring which is inserted into the hanging nut 1 and biases the locking plate 6 upward, and is arranged in contact with the lower surface of the locking plate 6. The coil spring 9 is formed from the upper and lower overlapping states of the collar portion 4 and the upright pieces 8, 8 as shown in FIG.
When the overlapped state is released as shown in FIG. 3 by pivoting at a substantially right angle, the upper ends of the upright pieces 8, 8 project upward from the upper surface of the collar portion 4 so as to be locked. An upward biasing force is constantly applied to the lower surface of the plate 6.

Reference numeral 10 denotes a substantially annular handle body attached to the lower portion of the hanging nut 1. The handle body 10 is provided with a rising piece wall 11 projecting upward on the upper surface side along the inner peripheral edge of the handle body 10. There is. On the inner peripheral surface side of the rising piece wall 11 of the handle body, engaging recesses 12, 12 into which the pair of locking projections 5, 5 are fitted are provided, respectively, and are located above the positions of the engaging recesses 12, 12. Positioned on both sides with split grooves 13,
Resilient piece 14 of rising wall formed by providing 13.
4 are arranged and the pair of locking protrusions 5, 5 are elastic pieces 14, 1.
4 is pushed outward and fitted into the engaging recesses 12, 12 in a snap manner (see FIGS. 9 and 10). Further, an annular groove 15 into which the lower end of the coil spring 9 is fitted is provided on the outer peripheral surface side of the rising piece wall 11, and the coil spring 9 fitted into the annular groove 15 is located on the outer peripheral surface of the rising piece wall 11. The elastic pieces 14, 14 are prevented from spreading outward (see FIG. 10). Therefore, the locking projections 5, 5 of the hanging nut, which are inserted by expanding the elastic pieces 14, 14, are fitted into the engaging recesses 12, 12 in a non-removable manner, so that the handle body 10 is firmly attached to the lower portion of the hanging nut 1. Will be installed. In addition, a non-slip ridge 16 is formed on the outer peripheral surface of the handle body 10, and a pair of knobs 17, 17 are provided at opposing positions.

Reference numeral 18 is a cylindrical protective cap that is integrally attached to the lower portion of the handle body 10. The protective cap 18 has a gate piece 19 attached to the bottom surface thereof, the gate piece 19 being destructible by the protrusion of the suspension bolt 23.

Further, the protective cap 18 may be colored in a different color depending on the object to be hung and held by the receiver A. In this way, the ceiling and the ceiling can be Conveniently suspends and holds a wide variety of wiring and piping that pass through the back.

Since the hanging bolt receiver A of the present invention has the above structure, for example, when constructing a ceiling, as shown in FIGS. 11 to 13, this receiver A is provided with the dovetail groove 21 on the lower surface. When connecting to the deck plate 22 that has, for the dovetail groove 21,
The collar portion 4 provided on the upper part of the hanging nut 1 is formed into a dovetail groove in a state where the narrow width portion d of the collar portion 4 and the upright pieces 8 of the locking plate 6 are vertically overlapped (see FIG. 2). When the handle body 10 is rotated about 90 degrees in a horizontal direction by fitting it between the opposing walls of 21 and inserting it from below (see FIG. 11), the upright pieces 8, 8 of the locking plate 6 are made into the dovetail groove 2.
The collar portion 4 of the hanging nut 1 while being inserted between the opposing walls of 1 cancels the overlapping state with the standing pieces 8 and 8 and rotates at a right angle, and the lower surface of the collar portion straddles the inner surface of the dovetail groove 21. At the same time, the locking piece 6A of the locking plate biased upward by the coil spring 9 contacts the lower surface of the dovetail groove 21, so that the collar portion 4 contacts the inner surface of the dovetail groove 21. At this time, the standing pieces 8 and 8 which are between the opposing walls of the dovetail groove 21 and cannot be rotated in the horizontal direction, are
The collar portion 4 has a predetermined angle inside 1 (about 5 degrees in the case of this embodiment)
Since the collar 4 is locked by the above rotation and the rotation of the collar portion 4 is prevented, there is a risk that the collar portion 4 will rotate and fall out of the dovetail groove 21 due to vibration or other external force after the main receiver A is attached. There is no.

After mounting the main receiver A in this way, the hanging bolt 23 is screwed into the hanging nut 1 and screwed until the tip of the hanging bolt 23 comes into contact with the lower wall of the dovetail groove 21. The flat surface 4A of the lower surface of the part strongly presses against the inner surface of the dovetail groove 21,
Is firmly fixed to the deck plate 22 together with the main receiving member A while keeping it stationary. When the hanging bolt 23 is screwed into the hanging nut 1, if the protective cap 18 is attached to the hanging nut 1, the gate piece 19 on the bottom surface is pushed and the hanging bolt 23 is screwed.

The reference numeral 4 in the drawings is a fitting having a character-shaped cross section fixed to the lower end of the hanging bolt 23 with nuts 25, 25. The ceiling base material and the like are connected through the fitting 24. However, other mounting brackets may be used depending on the purpose of use.

Further, in the case of the present embodiment, an example in which a deck plate is used as the mounting member 22 is shown, but in addition to this, a mounting member having a receiving groove 2 having a cross-sectional shape of, for example, as shown in FIG. 22 may be used, and in this case, the brim portion 4 may be formed in a rectangular cross-sectional shape as shown in FIG. 15, and the selection thereof is arbitrary as long as it does not violate the gist of the present invention.

〔The invention's effect〕

Since the present invention is configured as described above, it has the following effects.

That is, the handle body with the protective cap is configured separately from the hanging nut, and moreover, after the locking projection is pushed into the engagement concave portion and snap-fitted, the coil spring held in the compressed state is simply released. Since the handle body with the protective cap can be connected to the hanging nut by a simple operation, when assembling and manufacturing this receiver, protect it after inserting the locking plate and the coil spring into the hanging nut. It suffices to attach the handle body with the cap to the lower portion of the suspension nut by the above-mentioned operation. Therefore, the receiver according to the present invention can be easily assembled and manufactured, which can contribute to the efficiency of product manufacturing.

Moreover, since the coil spring that fits in the annular groove after being snap-fitted by using the elastic force regulates the elastic force of the rising one wall, the mounting state of the hanging nut and the handle body with the protective cap is We can provide strong and high-quality products.

Further, since the protective cap having the bottom face of the gate piece which is easily broken through the handle body is provided below the hanging nut, the sprayed dew condensation preventing material does not enter the hanging nut. Therefore, when connecting the suspension bolt to the suspension nut, the suspension bolt can be easily screwed into the suspension nut by pushing the gate piece, and the suspension bolt installation work can be performed smoothly without any problems. is there.

In addition, the protective cap is colored differently depending on the object to be hung and held, so you can quickly and easily use the color as a mark for a wide variety of wiring and pipes that pass through the ceiling and behind the ceiling. This has the effect of easily suspending and holding the target object.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention partially cut away, and FIG. 2 shows an assembled state, and is a perspective view showing a state in which a collar portion and a standing piece are vertically stacked. , FIG. 3 also shows the assembled state, the perspective view of the collar portion and the upright piece in a state where the overlapping is removed, FIG. 4 is its front view, FIG. 5 is its plan view, and FIG. 6 is its Bottom view, FIG. 7 is a sectional view taken along the line XX of FIG. 1, FIG. 8 is a sectional view taken along the line YY of FIG. 1, and FIG. 9 and FIG. Vertical cross-sectional view showing the process
11 to 13 are sectional views showing a connecting operation to the mounting member at the time of use, FIG. 14 is a sectional view showing an example of a usage state, FIG. 15 is an explanatory view showing a modified example of the collar portion, and FIG. FIG. 7 is a front view showing a conventional example with a part thereof cut away. 1 ... Hanging nut, 2 ... Female screw, 4 ... Collar part, 5 ... Locking protrusion, 6 ... Locking plate, 8 ... Standing piece, 9 ... Coil spring, 10 ... Handle body, 11 ...... Rising one wall, 12 …… Engagement recess,
15 …… Annular groove, 18 …… Protective cap, 19 …… Gate piece,
21 …… Receiving groove (dove groove), 22 …… Mounting member (deck plate), 23 …… Hanging bolt.

Claims (2)

[Claims] Claim: What is claimed is: 1. Between the opposing walls of the receiving groove (21) of the mounting member (22) on the upper part of the hanging nut (1) engraved with the female screw (2) with which the male screw of the hanging bolt (23) is screwed. Is provided with a flange portion (4) which protrudes from below and rotates substantially at a right angle to engage with the inside of the receiving groove, and is inserted between the opposing walls of the receiving groove (21) at a position below the flange portion (4). A locking plate (6) having a pair of upstanding pieces (8, 8) for restricting the rotation of the flange (4) is provided, and a coil spring (urging upwardly on the lower surface of the locking plate (6) ( 9), and a pair of locking protrusions (5, 5) protruding laterally on the lower part of the suspension nut (1).
5) is provided, and a substantially annular handle body (10) attached to the lower portion of the hanging nut (1) is provided with a rising piece wall (11). On the inner peripheral surface side, the locking projections (5,
An annular groove (15) into which the lower end portion of the coil spring (9) is fitted is provided on the outer peripheral surface side of the rising piece wall (11) while providing engagement recesses (12, 12) for snap-fitting 5). And the destructible gate piece (1
A support for hanging bolts for ceilings, etc., characterized in that a protective cap (18) having 9) on the bottom is integrally attached. 2. A receiver for a hanging bolt such as a ceiling, characterized in that the protective cap (18) according to claim 1 is colored differently depending on an object to be suspended and held.