JPS5923850Y2 - Ceiling fixing device for parts mounting body - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device for fixing a component mounting body to the ceiling for attaching components such as a radio wave transmitter of an automatic door or a lighting fixture to the ceiling.

Conventionally, this type of component mounting body a, as shown in Fig. 1, consists of a vessel-shaped body with a brim-shaped flange extending from the bottom side, and before it is inserted into a predetermined opening in the ceiling. An abbreviated fixture C is installed in the ceiling in advance, and a ceiling wall d is interposed between this and the flange section, and the fixture C is attached to the outer peripheral wall a' of the mounting body a. By screwing and tightening the screw f inserted into the through hole e of the fixture C into the screw hole of the fixture C, the ceiling wall d is fixed.
It is now fixed to .

However, in such a conventional fixing means for the component mounting body a, the fixing device C and the outer peripheral wall a' are strongly pressed together by the screw rotation of the screw f, but in this case, the tightening of the screw f is Since the flange part does not directly help to strengthen the clamping force between the fixture C and the fixture C, it tends to cause looseness when it is fixed to the ceiling, and the screw f also rotates from the inside of the component mounting body a. There were drawbacks such as poor operability as it required manual operation.

The present invention was developed to solve these problems with conventional mounting means, and it applies the tightening force of the screw directly to the fixture so that the ceiling wall is compressed between the fixture and the flange. It is an object of the present invention to provide a fixing device that can obtain sufficient fixing force and improve the workability of this type of operation.

This configuration will be explained below based on an example shown in the drawings. Reference numeral 1 denotes a parts mounting body to which parts A such as a radio wave transmitter of an automatic door are attached. In the case of
It is formed into a can-shape by an upper surface wall 3 provided to cover the upper surface thereof, and a brim-shaped flange portion 4 is horizontally extended outward from the lower side of the peripheral side wall 2.

However, in the present invention, in such a component mounting body 1, supports 5, 5', 5, 5', . A plurality of pairs of supports 5, 5', 5, 5', . , consisting of a plate-shaped member extending toward the center thereof, and through holes 6, 6', 6, 6', etc. are bored in approximately the center thereof, respectively. There is.

Further, in the circumferential wall 2, window holes 7, 7, . . . . As will be described in detail later, the fixing devices 8, 8 . By rotating the screws 13, 13, . . . in the direction of arrow A in FIG.
The pressing portions 9, 9, . . . are projected to the outside of the circumferential wall 2.

The fixture 8 is formed by integrally connecting a pressing part 9 with a substantially U-shaped side surface and one end of a base 10 with a substantially U-shaped side surface. The upper piece is provided with a through hole 11 through which the screw 13 is inserted,
Further, a threaded portion 12 having a threaded hole into which the same screw 13 is threaded is formed in the lower piece.

Therefore, in order to assemble the components having such a configuration and fix the component mounting body 1 to the ceiling wall B, first, a mounting hole C having a shape corresponding to the planar outline of the peripheral side wall 2 is formed in the ceiling wall B. The component mounting body 1 is inserted into the mounting 7LC after opening, and the flange portion 4 of the component mounting body 1 is brought into contact with the lower surface of the ceiling wall B.

However, at this time, the fixture 8 is inserted into the component mounting body 1 from the previously opened lower surface, and the base 10 is placed between the supports 5 and 5' in the state shown by the two-dot chain line in FIG. Further, the screw 13 inserted from the through hole 6' of the lower support 5' to the through hole 6 of the upper support 5 is screwed into the threaded part 12, and is also inserted into the through hole 11. It is better.

Next, from this state, the fixing tool 8 is centered around the screw 13.
Rotate it in the direction of arrow A in Fig. 3 and remove the fixing tool 8 from the window hole 7.
When the pressing part 9 is made to protrude outward and the screw 13 is further turned and tightened, the lower surface of the pressing part 9 comes into pressure contact with the upper surface of the ceiling wall B, and a gap is created between the pressing part 9 and the flange part 4. The ceiling wall B is compressed.

Other fixtures 8, 8, . . . (in the illustrated embodiment, four fixtures 8, 8, . . . are provided).

), the lower surfaces of the pressing portions 9 are brought into pressure contact with the upper surface of the ceiling wall B, and the component mounting body 1 is thus fixed to the ceiling wall B.

Reference numeral 14 in FIGS. 2 and 3 indicates a covered body made of a net material or the like that is provided to cover the bottom surface of the component mounting body 1. It is installed after being fixed to wall B.

As explained above, according to the present invention, the component mounting body 1 is fitted into the mounting hole C formed in the ceiling wall B.
is fixed to the ceiling wall B via a fixture 8, the component mounting body 1 is equipped with a cylindrical circumferential wall 2 corresponding to the mounting hole C of the ceiling wall, and the lower part of the circumferential wall 2 is An outward-facing flange portion 4 is provided to protrude, and a pair of upper and lower supports 5, 5' that can protrude inward are provided on the inner circumferential surface of the circumferential side wall 2.
A plurality of pairs of upper and lower supports 5 and 5' are provided at intervals in the circumferential direction, and through holes 6 and 6' for inserting vertical screws 13 are formed in each of the upper and lower pairs of supports 5 and 5', respectively. A plurality of window holes 7 for opening the peripheral side wall 2 along its circumferential direction are located between the upper and lower parts of each pair of supports 5 and 5', and are located at positions higher than the flange portion 4. The fixture 8 consists of a base 10 and a pressing part 9, and the base 10 includes a vertical piece 10, an upper horizontal piece 10□ bent laterally from both upper and lower ends of the vertical piece 101, and a lower horizontal piece 10. The pressing part 9 is a vertical pressing piece 9' bent downward from the tip of the lower horizontal piece 103.
and a horizontal pressing piece 9'' which is bent laterally from the lower end of the vertical pressing piece 9', forming an abbreviated shape, and the upper horizontal piece 10° and the lower horizontal piece of the base 10 of the fixture 8. 103 has a vertical through hole 11 and a threaded portion 12 formed concentrically relative to each other, and the lower horizontal piece 103 of the fixture 8 is
When the through hole 11 and the threaded part 12 in the base 10 are aligned with the through holes 6 and 6' of the supports 5 and 5' in the circumferential wall 2, the pressing part 9 moves from the window hole 7 to the outside of the circumferential wall 2. The vertical pressing piece 9' of the pressing part 9 protrudes and has a length that makes contact with the outer peripheral surface of the circumferential wall 2, and the component mounting body 1 has a circumferential wall 2 that fits into the mounting hole C of the ceiling wall B. The flange portion 4 is in contact with the lower surface of the ceiling wall B in the closed state, and the base portions 10 of the plurality of fixtures 8 are disposed within the circumferential wall 2 while passing through each window hole 7. At the same time, each pressing portion 9 is connected to the peripheral side wall 2.
The vertical pressing piece 9' and the horizontal pressing piece 9'' of each of these pressing parts 9 are in contact with the upper surface of the ceiling wall B and the outer peripheral surface of the peripheral side wall 2, respectively, and a head 13' is provided at the lower end. Each screw having 13
penetrates through the opposite holes 6, 6' of each of the supports 5, 5' described above, as well as the through hole 11 and threaded part 12 of the base 10 of each fixture 8, and connects to each threaded part 12 with a relative thread. The pressing portions 9 are tightened in the direction toward the flange portion 4.

Therefore, according to the present invention, not only can the ceiling wall B be directly clamped between the flange part 4 of the component mounting body 1 and the pressing part 10 of the fixture 8, but also the fixture 8 has a substantially U-shaped base 10, Since it consists of a letter-shaped pressing part 9, even if a large tightening force is applied to it by the screw 13, structural damage such as buckling of both parts 9 and 10 will not occur, and therefore the screw 13
Even if the lower horizontal piece 103 of the base 10 is bent due to tightening through the screw 13 and the screw 13 is tilted, the fixing state of the component mounting body 1 can be obtained by making full use of the tightening force. 13 is supported at both ends by the supports 5 and 5', extreme tilting does not occur, and the upper end of the screw 13 contacts the through hole 6 of the support 5 to prevent the screw from loosening. Furthermore, when the lower horizontal piece 103 of the base 10 is bent during the tightening process, the vertical pressing piece 9' of the pressing part 9 is drawn toward the circumferential wall 2, and is supported by the circumferential wall 2. Since they are in close contact with each other, buckling of the pressing part 9 is difficult to occur in this respect, and even though the fixture 8 is separate from the component mounting body 1, it has its own reinforced structure, supports 5.5', screws 13, Due to the support effect of the peripheral side wall 2, etc., the parts are mounted firmly.

[Brief explanation of the drawing]

Fig. 1 is a vertical side view showing a conventional example of means for fixing a component mounting body to the ceiling, Fig. 2 is a longitudinal side view showing an embodiment of the present invention, and Fig. 3 is a cross section taken along line III in Fig. 2. It is a diagram. 1... Part mounting body, 2... Circumferential wall, 4
...Flange part, 5...Upper support, 5'...Lower support, 6...Upper through hole, 6'... ...lower hole, 7...
Window hole, 8...fixing tool, 9...pressing part of the fixing tool, 10...base of the fixing tool, 12...
...Threaded part of fixing tool, 13...Screw, 13'.
...Screw head, B...Ceiling wall, C...
...Mounting hole.

Claims (1)

[Scope of utility model registration request] The component mounting body 1 is fitted into the mounting hole C formed in the ceiling wall B, and the component mounting body 1 is attached to the ceiling wall B via the fixture 8.
The component mounting body 1 is provided with a cylindrical circumferential wall 2 corresponding to the mounting hole C in the ceiling wall, and an outward flange portion 4 protrudes from the lower part of the circumferential wall 2. At the same time, a plurality of pairs of upper and lower supports 5, 5' that can project inwardly are provided on the inner peripheral surface of the peripheral side wall 2 at intervals in the circumferential direction, and each of these pairs of upper and lower supports 5 , 5' are provided with through holes 6, 6' for inserting vertical screws 13, respectively, and a plurality of window holes 7 for opening the circumferential side wall 2 along the circumferential direction are provided in the above-mentioned holes 6 and 5'. Each pair of supports 5
. Upper horizontal piece 10 bent sideways from both upper and lower ends of 10□
2. The lower horizontal piece 103 is formed into a substantially U-shape, and the pressing part 9 includes a vertical pressing piece 9' bent downward from the tip of the lower horizontal piece 103 and the vertical pressing piece 9'. The upper horizontal piece 10□ of the base 10 of the fixing tool 8 is formed into an abbreviated shape with a horizontal pusher piece 9'' bent laterally from the lower end.
, the lower horizontal piece 103 has a vertical through hole 11 and a threaded part 12.
are formed concentrically relative to each other, and the fixture 8 is
The lower horizontal piece 103 connects the through hole 11 and the threaded part 12 in the base 10 to the through hole 6 of the support 5, 5' in the peripheral side wall 2.
6', the pressing part 9 moves from the window hole 7 to the peripheral wall 2.
The vertical pressing piece 9' of the pressing part 9 protrudes outward and has a length that makes contact with the outer peripheral surface of the peripheral wall 2, and the component mounting body 1 has the peripheral wall 2 connected to the mounting hole C of the ceiling wall B. In the fitted state, the flange portion 4 is in contact with the lower surface of the ceiling wall B, and each of the plurality of fixtures 8 is inserted through each window hole 7, and the base portion 10 thereof is disposed within the peripheral side wall 2. At the same time, each pressing part 9 is arranged outside the circumferential wall 2, and the vertical pressing piece 9' and the horizontal pressing piece 9'' of each pressing part 9 are in contact with the upper surface of the ceiling wall B and the outer peripheral surface of the peripheral side wall 2, respectively. are in contact with each other, and have a head 13' at the lower end.
Each screw 13 passes through the reversible holes 6, 6' of each of the supports 5, 5' described above, and the through hole 11 and threaded portion 12 of the base 10 of each fixture 8, respectively. A ceiling fixing device for a component mounting body which is relatively screwed to the part 12 and tightened in the direction in which the pressing parts 9 approach the flange part 4.