JPS6214411Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to an appliance mounting device, and relates to an apparatus for suspending and supporting appliances such as a chandelier from a ceiling or the like.

[Technical background of the invention and its problems]

Conventionally, when attaching heavy equipment to ceilings, etc., the tightening force of wood screws was insufficient, so
An instrument mount having a structure as described in Japanese Patent No. 5363 is known. This equipment mount is made by screwing a bolt onto a rotating support that is rotatably attached to an elongated hook.Then, the hook is placed vertically and attached to the bolt, and then inserted into a hole in the ceiling. The tool is rotated horizontally above the hole to lock the hook onto the top surface of the field edge, suspending and holding the bolt, and attaching the tool to the bolt.

However, with this structure, when the hook is attached to the bolt and inserted into the ceiling hole, it rotates too much before engaging with the ceiling frame. When the hook rotates 180 degrees,
If the hook is again attached to the bolt and does not engage with the joist, it may come off the ceiling hole. If the hook is caught on the joist but in an unstable state, it may be damaged by vibrations or other factors.
There was a risk of heavy objects such as chandeliers falling.

[Purpose of invention]

The present invention was developed in view of the above-mentioned drawbacks, and when a hook is attached to a bolt and inserted into a hole in a construction surface, the horizontal rotation range of the hook is restricted.
To provide an instrument mounting device in which rotation of the hook is stopped at an opening angle at which the hook can surely engage with a field edge or the like above a hole, and the hook can be surely engaged.

[Summary of the idea]

The present invention is an equipment mounting device in which a hook is attached to a bolt and inserted through a construction surface, for example, a hole in the ceiling, and the hook is secured to the upper surface of a field edge to support the bolt. and a rotating support having a threaded hole for screwing the bolt, which is rotatably attached to the elongated hook formed with the bolt, and the hook is vertically rotated to be attached to the bolt, and the rotating support is rotatably attached to the elongated hook. In a device that is inserted into a hole made in a construction surface such as a bolt, the hook is rotated in a horizontal direction orthogonal to the bolt, and is locked above the hole, in which the upper end of the bolt is placed below the rotation support. When the hook is attached to a bolt and the hook is rotated in the horizontal direction, the hook engages with the bolt insertion portion of the hook, and the rotation range of the hook is restricted. A stopper part is formed to restrict the rotation of the hook in the direction opposite to the direction in which the hook comes into contact with the bolt.

[Example of idea]

The configuration of an embodiment of the present invention will be described with reference to the drawings.

Reference numeral 1 denotes a hook having a substantially U-shaped cross section, and both lower edges of both side surfaces 2 and 3 are formed with uneven locking edges 4. Further, on the upper surface of the hook 1, a long hole-shaped bolt insertion portion 5 is formed so as to be offset from the longitudinal center of the hook 1 toward one end.

Further, an engaging piece 6 is formed at one end of the upper surface of the hook 1 and is cut and raised downward, and this engaging piece 6 is attached to the bolt 7 by rotating the hook 1 vertically. The hook 1 is held at an angle so that the center of gravity is at an unstable position so that the hook 1 contacts the middle part of the bolt 7 and is rotated horizontally with a small impact force. .

Reference numeral 8 denotes a rotation support, which is formed in a substantially annular shape and has a threaded hole 9 on its inner peripheral surface into which the bolt 7 is screwed. The rotation support 8 is provided with a pivot pin 11 at a position on one end side of the bolt insertion part 5, which is offset from the center in the longitudinal direction of the hook 1 between both side surfaces 2 and 3 of the hook 1. It is rotatably mounted.

Further, the bolt 7 is screwed into a screw hole 9 of the rotation support 8 and is configured to be moved up and down by rotation.

Further, a stopper part 13 without a thread groove 12 is formed at the upper end of the bolt 7, and this stopper part 13 is not screwed into the threaded hole 9 of the rotation support 8 and is not moved downward. This stopper part 13 holds the hook 1 with the bolt 7.
When the hook 1 is rotated in the horizontal direction from the state attached to the hook, the hook 1 engages with one end of the bolt insertion part 5 of the hook 1 to restrict the rotation range of the hook 1. 1 is reversed approximately 180 degrees and attached to the bolt 7 in the opposite direction.

Next, the operation of this embodiment will be explained.

As shown in FIG. 3, the hook 1 is tilted vertically and attached to the bolt 7, and in this state is inserted into a hole 15 made in a construction surface, for example, the ceiling 14, so that the lower end of the hook 1 is inserted into the hole 15 in the ceiling 14. When the hook 1 is pulled upward from the bolt 7, the rotation support 8 is deviated toward one end from the center and is pivotally supported, and the engagement piece 6 is located in the middle of the bolt 7, so the hook 1 cannot be pulled. The hanger 1 is rotated horizontally perpendicular to the bolt 7 by a slight vibration, and when the bolt 7 is pulled downward, the locking edges 4 at both ends of the hook 1 are locked to the upper surface of the edge 16. be done.

As the hook 1 is rotated horizontally from the state attached to the bolt 7, the upper end stopper portion 13 of the bolt 7 enters the bolt insertion portion 5, and the hook 1
If it rotates beyond the horizontal position, the stopper part 1
3 engages with one end side of the bolt insertion part 5, as shown in FIG. 4, and further rotation of the hook 1 is restricted, and the hook 1 is attached to the bolt 7 in an inverted state. The hook 1 is held at a certain opening angle with respect to the bolt 7 so that it is locked to the upper surface of the edge 16. Therefore, the hook 1 is reversed approximately 180 degrees and attached to the bolt 7 again, and does not come out of the ceiling hole 15 together with the bolt 7.

The upper end of the bolt 7 protrudes from the bolt insertion portion 5 of the hook 1 when the hook 1 is locked on the upper surface of the edge 16. When the bolt 7 is rotated to adjust the length of the bolt 7 protruding downward from the ceiling 14, the bolt 7 is rotated to the rotation support 8.
It is moved upward by screwing with. Next, the support 17 in contact with the ceiling 14 is fixed with a nut 18 which is tightened and screwed onto the bolt 7.

Furthermore, when attaching the mounting device, if the hook 1 is attached to the bolt 7 in the opposite direction as shown in FIG.
It is possible to realize that the hook 1 cannot be attached to the bolt 7 by engaging with one end of the bolt 7, and that the attaching direction of the hook 1 is reversed. If the attachment direction of the hook 1 is the opposite direction, the center of gravity of the hook 1 will be stabilized, and the hole 1 will be stabilized.
5, the hook 1 cannot be rotated horizontally and cannot be locked to the edge 16.

In the above embodiment, the upper end stopper part 13 of the bolt 7 is formed from a part where the thread groove 12 is not formed, but the structure is not limited to this. Attach a stopper forming member such as a ring to the stopper part 1
3 can also be formed.

[Effect of idea]

According to the present invention, the upper end of the bolt is restricted from moving downward from the rotation support, and the hook is attached to the bolt, so that when the hook is rotated in the horizontal direction, the bolt insertion portion of the hook is attached to the bolt. Since a stopper part is formed that engages to restrict the rotation range of the hook, when the hook is attached to a bolt and inserted into a hole in a construction surface such as a ceiling, the hook will not move horizontally. When the bolt is rotated, the stopper part of the bolt engages with the bolt insertion part of the hook, restricting the range of rotation of the hook, and the hook turns approximately 180 degrees and attaches to the bolt again. The hook is held at a certain opening angle with respect to the bolt, and when the hook attached to the bolt comes out of the hole in the construction surface, lowering the bolt will cause the hook to open. The hook is securely locked above a hole in a field edge, etc., and the hook will not fall out of the hole, increasing safety.

Also, even if you attempt to attach the hook to the bolt by rotating it in the opposite direction to the direction in which it is likely to be rotated horizontally, the stopper part of the bolt will engage with the bolt insertion part, and the hook will not attach to the bolt. Since it cannot be inserted into the hole, you can immediately recognize that the hook is attached in the opposite direction, and can prevent misuse.Moreover, when the bolt is rotated, the stopper part is inserted into the threaded hole of the rotation support. It acts as a stopper to prevent the bolt from coming off, and the stopper is set at a position that restricts the horizontal rotation range of the hook while the bolt is stopped from moving downward by the stopper, improving operability. It can be obtained at low cost without increasing the number of parts.

[Brief description of the drawings]

Fig. 1 is a front view of an instrument mounting device according to an embodiment of the present invention attached, Fig. 2 is a perspective view of the same instrument mounting device, and Fig. 3 is a state in which the above hook is attached to a bolt. FIG. 4 is a cross-sectional view of the above-mentioned hook in a state where rotation is restricted. 1...Hooking tool, 5...Bolt insertion part, 7...
Bolt, 8...Rotation support, 9...Screw hole, 13
...Stopper section, 14...Ceiling of construction surface, 15
……hole.

Claims (1)

[Scope of utility model registration request] A slender hook having a bolt insertion portion formed therein, a bolt, and a rotation support rotatably attached to the hook and having a threaded hole for screwing the bolt therein, the hook having the bolt inserted therein. A hook that rotates vertically and attaches to the bolt and is inserted into a hole provided in a construction surface, and is locked above the hole by rotating the hook in a horizontal direction orthogonal to the bolt. The upper end part restricts downward movement from the rotating support, and the hook is attached to a bolt, so that when the hook is rotated in a horizontal direction, the hook engages with the bolt insertion part and the hook is attached to the bolt. An instrument mounting device characterized in that a stopper portion is formed to restrict the rotation range of the instrument.