JPS6331291Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Field of Use This invention relates to an appliance mounting device used when an appliance such as a chandelier is suspended and supported from a ceiling or the like.

Conventional technology Conventionally, when attaching heavy equipment to the ceiling, etc., the tightening force of wood screws was insufficient, so
An instrument attachment device as shown in Japanese Patent No. 5363 is known. Its structure consists of screwing a bolt into a rotating support that is rotatably supported by an elongated hook.
Insert the hook into the ceiling hole with the hook vertically aligned with the bolt, turn the hook horizontally and lock it on the top of the verge, and hang the device from the bolt hanging from the ceiling. I try to support it.

Problems that the invention aims to solve: The entire weight of the suspension is placed on the rotating support to which the bolt is threaded, and this rotating support is only engaged with the hook by its shaft. Substantially the entire weight must be supported by the shaft. Therefore, it is necessary to increase the thickness of the hook that holds this shaft to increase its strength. In order to solve such strength problems, the material of the hook must be made of metal or its thickness must be increased, resulting in an expensive component.

Further, since the rotating support is rotatably held by the hook, it may rotate while supporting the device, and there is also the problem that a stable attachment state cannot be obtained.

Measures to solve the problem: The relief hole formed in the hook for inserting the bolt is made into a screw hole into which the bolt is screwed.
The bolt that is screwed into the rotating support is also screwed into the screw hole of the hook at the same time.

Function: Since the weight of the device is transmitted to the hook via the bolt, the hook becomes a weight-supporting member, and the load is not concentrated locally.
Therefore, even if the hook is made of a thin material, its strength is high, so it is possible to use resin, and the bolt that supports the device is screwed into both the rotating support and the hook. Therefore, a stable mounting condition can be obtained without wobbling.

An embodiment of this invention will be described based on the drawings. First, both lower edges of both side surfaces 2 and 3 of the elongated hook 1, which has a substantially inverted U-shaped cross section, are provided with uneven locking edges 4. An engaging portion 5 is cut and raised at one end of the upper surface of the hook 1 and projects inward. Further, reference numeral 6 denotes a rotation support, which is formed in a substantially annular shape and has a threaded groove 8 formed in its inner circumferential surface to be screwed into the bolt 7 . This rotating support 6 is connected to the hook 1 between both sides 2 and 3 of the hook 1.
It is rotatably supported by a shaft portion 9 at a position offset toward one end from the center portion in the longitudinal direction. A play hole 10 is formed in the hook 1 to support the shaft portion 9. The bolt 7 is screwed into a thread groove 8 of the rotation support 6.

Therefore, a play hole 10 is provided on the upper surface of the hook 1.
A screw hole 11 into which the bolt 7 can be screwed is formed at a position corresponding to the above position, that is, at a position above the tip of the bolt 7 when the hook 1 is placed in a horizontal state.

In such a configuration, when the hook 1 is tilted vertically and placed along the bolt 7 as shown in FIG. It will be slightly tilted to make it easier to rotate. In this state, when the hook 1 is inserted into a hole 13 formed in a construction surface, for example, the ceiling 12 as shown in FIG. However, since the rotating support 6 is in an eccentric position, the center of gravity is at an unstable position, and the hook 1
rotates horizontally and falls down. Then, 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 field edge 14. Ceiling 12 in this state
When the bolt 7 is rotated in order to adjust the length of the bolt 7 projecting downward from the bolt 7, the bolt 7 is threadedly engaged with the rotating support 6 and moves upward. On this occasion,
Since the screw hole 11 of the hook 1 is located above the tip of the bolt 7, the bolt 7 is also screwed into this screw hole 11 and is inserted onto the upper surface of the hook 1 as shown in FIGS. 1 and 2. It will stand out. After adjusting the protruding length of the bolt 7, the support 15 in contact with the ceiling 12 is fixed with a nut 16 tightened and screwed onto the bolt 7.

After fixing in this way, the instrument will be suspended from the bolt 7, but since the bolt 7 is screwed into the hook 1 through the screw hole 11, the hanging weight will be transferred to the hook 1. As a result, the hanging strength is doubled. As a result, since almost no hanging weight is applied to the rotary support 6, it is sufficient to use a simple plastic molding. Also,
The process of caulking the rotary support 6 is not necessary, and costs can be reduced. Furthermore, in the above-mentioned installation work, since the hook 1 is fixed horizontally when the bolt 7 is screwed into the screw hole 11, the hook 1 rotates due to an external impact and falls from the hole 13. You can prevent dangers such as

Effects of the invention As mentioned above, this invention has a relief hole formed in the hook for inserting the bolt, and a threaded hole into which the bolt is screwed, and a bolt to be screwed into the rotating support is screwed into the hook. Since the weight of the instrument is transmitted to the hook via the bolt, the hook becomes a weight supporting member, and the load is not applied locally. Therefore, even if the hook is made of a thin material, its strength is high; therefore, resin can be used, and the bolts that support the instrument can be used for rotating supports and hooks. Since it is screwed into both of the parts, there is no wobbling and a stable mounting condition can be obtained.

[Brief explanation of the drawing]

The drawing shows one embodiment of this invention.
The figure is a perspective view, FIG. 2 is a vertical side view thereof, FIG. 3 is a vertical front view when inserted, and FIG. 4 is a front view showing the installed state. 1...Hooking tool, 6...Rotating support, 7...Bolt, 8...Thread groove, 11...Threaded hole.

Claims (1)

[Scope of utility model registration request] The device includes an elongated hook, a bolt, and a rotating support that is rotatably supported by the hook and has a threaded groove to be screwed into the bolt, and the hook can be rotated vertically. In the instrument mounting device, the hook is inserted into a hole provided in a construction surface along a bolt, and the hook is rotated in a horizontal direction perpendicular to the bolt to lock the hook above the hole. An instrument mounting device characterized in that a screw hole is formed in the hook so that the bolt can be screwed into the hole located above the bolt when the tool is placed in a horizontal state.