JPH04271220A - Mounting frame - Google Patents

Abstract

PURPOSE:To provide a mounting frame for preventing the deformation of the main body of the mounting frame during installation. CONSTITUTION:Flange portions 2, 2 are formed with mounting holes 16 formed at both ends in longitudinal direction of the main body portion 1 of a metallic mounting frame having a rectangular frame shape. At the portion between the flange portions 2, 2, gap portions 13, 13 are formed at both sides, and its tip forms a mounting piece portion 15 of free end. At this mounting piece portion 15, a mounting hole 16 is formed for attaching the frame to a box embedded in a wall or the like by inserting and tightening a mounting screw into the mounting hole. Even though a mounting screw is inserted to the mounting hole 16 and the mounting screw is tightened, only the mounting piece portion 15 is deformed and the flange portion 2 is not deformed, so that the deformation of the main body 1 of the mounting frame can be prevented.

Description

[Detailed description of the invention]

[Object of the invention]

0002

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting frame for attaching appliances such as switches and outlets to an embedded box embedded and fixed in a wall or the like.

0003

[Prior Art] Conventionally, this type of mounting frame has a long mounting hole formed in the widthwise center of the flange portions at both ends, and a mounting screw is inserted into the mounting hole to be embedded in a wall or the like. It is installed by screwing into the screw hole of the embedded box.

0004

However, in the case of the conventional structure described above, when the mounting screws are tightened, a strong force acts on the flange, deforming the flange, and distorting the mounting frame.
It becomes difficult to attach decorative boards, etc. to the surface of the mounting frame. In addition, there is a problem in that the appliance sinks inward from the decorative board attached to the surface, spoiling the appearance.

The present invention was made in view of the above-mentioned problems, and an object of the present invention is to provide a mounting frame that is less likely to be deformed when the mounting frame is inserted into an embedded box embedded in a wall or the like. shall be.

[Configuration of the invention]

[0007]

[Means for Solving the Problems] According to the mounting frame according to claim 1, flanges each having a mounting hole formed at a substantially central portion in the width direction are formed at each side end, and an instrument mounting hole is provided at the middle portion. A mounting frame having a mounting frame main body part, wherein a mounting piece part is formed with one longitudinal end of the flange part in the longitudinal direction of the mounting frame main body part as a free end, and a mounting hole is formed in this mounting piece part. be. According to the mounting frame according to claim 2, a bridge portion is formed near the free end of the mounting piece portion of the flange portion located on both sides of the mounting piece portion to bridge between the mounting frame main body portions in the width direction. be.

[0008]

[Function] According to the mounting frame according to claim 1, a mounting piece portion is formed in the flange portion with one end in the longitudinal direction being a free end, a mounting hole is formed in this mounting piece portion, and the mounting screw is attached to the mounting frame. Even if a strong load is applied to the mounting hole by the mounting screw when attaching it to the object to be mounted, the mounting piece may deform.
Prevents deformation of the mounting frame itself.

According to the mounting frame according to claim 2, claim 1
In the mounting frame described above, a bridge section is formed in the width direction of the flange near the free end of the mounting piece, so a strong load is applied to the mounting hole by the mounting screw, and the mounting piece is moved in the width direction of the mounting frame. Even if a force is applied in the cross direction, the bridge portion prevents the mounting frame main body from deforming in the width direction.

0010

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 2, reference numeral 1 denotes a mounting frame main body, and this mounting frame main body 1 is formed into a substantially rectangular frame shape made of metal such as iron. As shown in FIGS. 1 to 4, this mounting frame main body 1 has flanges 2, 2 formed at both ends, and between both sides of these opposing flanges 2, 2, side edges 3,
4 are formed, and these flange parts 2, 2 and side edges 3
, 4 is formed with an instrument attachment hole 6 into which a switch 5 as an instrument is fitted and protruded from the back surface.

Further, a rib portion 7 is bent downward on one side edge 3, and three rectangular engagement holes 8 are formed in this rib portion 7. , a holding member 9 is attached.

Further, on the other side edge 4, a rib portion 11 shorter than the rib portion 7 is formed by bending downward substantially parallel to the rib portion 7, similar to the rib portion 7, and this rib portion 11 has the following features: Six locking holes 12 are formed corresponding to the locking holes 8, making up a pair of locking holes 12.

[0014] The flange portion 2 also has gap portions 1 on both sides.
3 and 13 are formed, one end is a free end, and a mounting piece part 15 is formed one step lower than the flange part 2 from the end side of the flange part 2 via a stepped part 14, and this mounting piece part 15 has a width. An elongated attachment hole 16 whose direction is the longitudinal direction is bored. Furthermore, the flange portion 2 has locking holes 17, 18, 1.
8 is formed. At the end of the flange portion 2, a rectangular locking protrusion 21 is formed protruding from the center in the width direction, and rectangular locking notches 22 are formed on both sides. Further, on the side of the instrument mounting hole 6 of the flange portion 2, a bridging portion 23 located at the tip of the mounting piece portion 15 and bridging the sides of the gap portions 13, 13 on both sides of the mounting piece portion 15 is provided on the mounting frame main body. The bridging portion 23 is bent upward along the width direction of the bridging portion 23, and a substantially triangular fulcrum portion 24 is formed protruding from the center upper side of the bridging portion 23.

On the other hand, the holding member 9 is made of elastic stainless steel, which is a spring material, and has a mounting surface 31 that is attached to the back surface of the one side edge 3. An engagement hole 32 is bored to be engaged with a protrusion (not shown) formed on the back surface of the cover. Further, a support surface 33, a bottom surface 34, and a locking surface 35 are sequentially bent along the longitudinal direction on the mounting surface 31, and a locking piece 36 is formed on the support surface 33.
A locking edge 37 is formed at the tip of the locking piece 36, and a positioning portion 38 for preventing longitudinal movement of the switch 5 is formed at the tip of the locking edge 37.

Then, the mounting surface 31 of the holding member 9 is brought into contact with the back surface of the one side edge 3, and the protrusion (not shown) is inserted into the engagement hole 32.
be engaged and installed. Further, the rib portion 7 is positioned in contact with the bottom surface 34 and the locking surface 35. At this time, the locking piece 36 is positioned on the inner side of the locking hole 8.

Further, 41 is an insulator, and this insulator 41 is attached to the mounting piece 1 as shown in FIGS. 1, 2, 5, and 6.
5, the insulating surface 42 has an insulating surface 42 located on the
A mounting hole 43 corresponding to the mounting hole 16 is formed, and a rib portion 44 that is inscribed in the mounting hole 16 and is longer than the thickness of the mounting piece portion 15 is formed in this mounting hole 43 . Furthermore, a holding surface 45 is formed one step higher than the insulating surface 42.
5 has a locking hole 46 located concentrically with the locking hole 17. Further, a positioning recess 47 is formed in the center on the end side of the holding surface 45, and the positioning recess 47 is positioned at the locking protrusion 21, and legs 48,
48 are formed, and the lower ends of these leg portions 48 are arranged to be approximately at the same position as the lower ends of the rib portions 44. A locking portion 49 is formed by locking on the lower surface of the flange portion 2 from the leg portion 48 toward the side, and a positioning portion 49 is formed on the upper surface of the locking portion 49 to be positioned in the positioning notch portion 22. A protrusion 50 is formed, and a locking pawl 51 is formed protruding from the positioning protrusion 50 in the direction of the end.

The insulating plate 41 is attached to the mounting frame body 1 as shown in FIG. That is, the insulating surface 42 is located on the mounting piece 15, and the rib portion 44 is fitted and inscribed in the inner surface of the mounting hole 16. Further, the positioning protrusion 21 is fitted into the positioning recess 47, and
The positioning protrusion 50 is positioned in the positioning recess 22,
Movement in the width direction is restricted. Furthermore, the attachment frame main body 1 is inserted into the flange 2 by a locking portion 49 from the back surface thereof. Note that there is a gap between the positioning protrusion 50 and the mounting frame main body 1 in the longitudinal direction to absorb deformation when the locking claw 51 is locked.

Further, in the switch 5, the locking pieces 55 provided at both longitudinal ends of the switch 5 are first fitted and inserted into the locking holes 12, 12, and then the locking pieces 36 are locked. It is bent outward by the piece 55 and inserted, and the locking piece part 36
When it returns to its original state, it is pressed and locked from below toward the upper surface of the engagement hole 8 by the locking edges 37, 37, and positioned between the locking pieces 55, 55 by the positioning part 38.

Then, mounting screws 6 are inserted into the mounting holes 16 and 43 in the embedded box 61 embedded in the wall 60 shown in FIG.
2, and attach the mounting frame main body part 1 with the mounting screws 62, and also attach a decorative plate, etc. (not shown) to the front surface.

In the above embodiment, both the mounting frame main body 1 and the holding member 9 are made of metal, but either or both may be made of synthetic resin. In this case, the mounting frame body 1 is made to have strength, and the holding member 9 is made to have elasticity. Furthermore, although the holding member is one in which three locking pieces 36 are provided on one holding member 9, three pieces in which one locking piece 36 is provided on one holding member 9 are used. Good too.

Furthermore, the appliance 5 is not limited to a switch, but may be an outlet, an indicator light, a telephone outlet, a television connector, or the like.

As in the above embodiment, gaps 13, 13 are provided along the longitudinal direction of the mounting frame main body 1 on both sides of the mounting piece 15.
By making the tip of the mounting piece 15 a free end, as shown in FIG. The stepped portion 14 on the end side deforms and absorbs the stress, so as in the conventional example shown in FIG. 9, in which the insulator 41 is removed to make the deformation easier to see, as in FIG. The main body part 1 itself can be prevented from deforming.

Next, another embodiment will be described with reference to FIGS. 10 and 11.

In this case, a substantially trapezoidal locking claw portion 71 is bent downward in the vicinity of the stepped portion 14 of the mounting piece portion 15 shown in FIG. A contact surface 72 is formed substantially parallel to the upper surface of the piece 15.

According to the embodiment shown in FIG. 10, even if the mounting screw 61 is screwed into the embedded box 62 and the mounting piece 15 is bent and deformed downward, the locking claw part 71
The abutment surface 72 of immediately abuts against the wall 60,
Since the amount of change in the mounting piece portion 15 is kept small, deformation of the mounting frame main body portion 1 can be further reduced.

Further, other embodiments are shown in FIGS. 12 to 14.
Explain with reference to.

This embodiment is the embodiment shown in FIG. 1, in which an oblong mounting hole 16 is directly drilled in the flange portion 2 without providing the gaps 13 and 13 and the mounting piece portion 15. The slit portions 81, 81 are aligned perpendicularly to the straight line portion, that is, along the longitudinal direction of the mounting frame main body 1.
A rectangular deformation allowing portion 82 is formed between these slit portions 81, 81.

According to the embodiment shown in FIG.
1, the flange portion 2 does not deform as in the conventional example shown in FIG. 14, and only the deformation allowing portion 82 can be deformed as shown in FIG.
Therefore, deformation of the mounting frame main body 1 can be prevented.

[0030]

According to the mounting frame according to claim 1, the flange portion is formed with a mounting piece portion with one end as a free end, and the mounting hole is formed in this mounting piece portion, so that the mounting hole can be Even if the mounting screw is inserted and tightened, the mounting piece deforms and deformation of the flange is suppressed, so deformation of the mounting frame main body can be prevented. Furthermore, since deformation can be suppressed, it is possible to prevent the appliance from sinking into the decorative board and spoiling its appearance.

According to the mounting frame according to claim 2, claim 1
In addition to the mounting frame described above, by forming a bridge section between the mounting frame main bodies in the width direction, it is possible to strengthen the mounting frame main body against deformation in the direction intersecting the width direction. Deformation can be prevented.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing one embodiment of the present invention.

FIG. 2 is a perspective view of the same as above.

FIG. 3 is a plan view of the same as above.

FIG. 4 is a side view of the same as above.

FIG. 5 is a perspective view showing the same insulator as above.

FIG. 6 is a partially cutaway side view of the same as the above.

FIG. 7 is a side view showing how the holding member is attached to the mounting frame body.

FIG. 8 is a partially simplified sectional view showing a modification of the mounting frame main body portion.

FIG. 9 is a partially simplified sectional view showing a modification of a conventional mounting frame main body.

FIG. 10 is a partial perspective view showing another embodiment.

FIG. 11 is a sectional view of the same as above.

FIG. 12 is a partial perspective view showing another embodiment.

FIG. 13 is a partial sectional view showing the same deformation as above.

FIG. 14 is a partial sectional view showing a modification of the conventional example.

[Explanation of symbols]

1 Mounting frame main body 2 Flange part 5. Switch as a device 6 Equipment mounting hole 15 Mounting piece 16 Mounting hole 23　　　Bridging part

Claims (2)

[Claims] Claim 1. A mounting frame having a mounting frame main body having a mounting hole formed at substantially the center in the width direction and a mounting frame main body having a flange portion formed at each side end and having an instrument mounting hole in the middle portion. A mounting frame characterized in that a mounting piece is formed with one end in the longitudinal direction of the mounting frame main body as a free end, and a mounting hole is formed in the mounting piece. 2. According to claim 1, a bridge portion is formed in the vicinity of the free end of the mounting piece portion of the flange portion located on both sides of the mounting piece portion to bridge between the mounting frame main body portions in the width direction. Mounting frame as described.