JPH1014667A - Attaching device for receptacle box for desk and the like - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the processing and the assembly, and also, prevent a receptacle box being fitted in an opening of an attaching frame from being easily removed by integrally molding the supporting frame and the internal plate of the receptacle box, of a synthetic resin. SOLUTION: An opening 12 is provided on the top plate 11 of a desk 10, and both end parts of an attaching frame 14 having a fitting hole, are engaged with protuberances facing upward, which are provided at upper places on the internal surface of the opening 12. At the same time, the engaging ends facing downward at the lower ends of engaging pieces 18 being vertically hung from the bottom of the opening edge of the attaching frame 14, are engaged with the lower surfaces of the protuberances. In addition, a rib-form reinforcing part 29 which prevents both engaging pieces 18 from moving inward by coming into contact with the side surfaces, when a receptacle box 15 is fitted in the opening of the attaching frame 14, is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for mounting an outlet box on a desk or the like.

[0002]

2. Description of the Related Art A typical outlet box in a conventional desk is described in, for example, Japanese Patent Application Laid-Open No. 7-79822 (Japanese Patent Application No. 5-225584) by the same applicant as the present invention.

[0003] As shown in Figs.
(01) and an inner plate (02) to be fitted thereto
Parts are combined, but in the production of each part,
Due to sheet metal processing, multiple press dies are required,
The number of processing times is large, resulting in high costs.

The supporting frame (01) is provided with projections (06) and (07) provided inside an opening (04) of a top plate such as a desk (00), respectively, at both ends (08) and (09). ), The fitting state is maintained, but the support frame (01) fitted in the opening (04) is
Since the inner plate (02) of the top plate is easily bent inward, the opening (0
It was easy to fall off from 4).

[0005] Further, since the support frame (01) and the inner plate (02) are easily engaged, the inner plate (02) is easily dropped off from the support frame (01).

Further, as shown in FIG. 9, when the support frame (01) is pulled upward by inserting and removing the plug with the outlet box (03) fitted, the lower end of the inner plate (02) is provided. Since the engaging portion (05) has a gutter-shaped cross section, the inner plate (02) may bend inward and the support frame (01) may fall off from the top plate.

[0007]

SUMMARY OF THE INVENTION According to the present invention, the support frame (01) and the inner plate (02) of the outlet box (03) are integrally molded with a synthetic resin, so that processing and assembly can be performed. For the sake of simplicity, when the outlet box is fitted into the opening of the mounting frame, a rib-shaped reinforcing portion is formed integrally with the side surface so as to abut against the side surface to prevent the inward movement of both engaging portions. It is intended to obtain a mounting device for an outlet box.

Further, the present invention provides a rib-like reinforcing portion configured as described above perpendicular to the inner surface of the mounting frame, thereby providing a strong connection between the outlet box and the mounting frame when the plug is inserted or removed. It is an object of the present invention to provide an outlet box mounting device that is not deformed or falls off even when a force is applied.

Further, according to the present invention, the rib-shaped reinforcing portion is
An object of the present invention is to obtain a mounting device for an outlet box in which a process is simplified by being integrally molded as a part of a mounting frame.

Furthermore, the present invention provides, for some reason,
If an excessive force is applied between the outlet box and the mounting frame, the hanging piece having an engagement end to be engaged with the projection inside the opening provided in the top plate is directed in a direction to avoid breakage. It is an object of the present invention to obtain an outlet box which is bent so as to be disengaged.

[0011]

According to the present invention, the above-mentioned problem is solved as follows. (1) An upwardly projecting piece is provided above the inner surface of an opening provided on a tabletop of a desk, and both ends of a mounting frame having a fitting hole for fitting an outlet box are locked to the projecting piece. ,
When the outwardly engaging end of the engaging piece vertically provided below the opening edge of the mounting frame is engaged with the lower surface of the protruding piece, and when the outlet box is fitted into the opening of the mounting frame, it comes into contact with the side surface thereof. hand,
A rib-like reinforcing portion for preventing the inward movement of both engagement pieces is provided.

(2) In the preceding paragraph, a plurality of the rib-shaped reinforcing portions are provided so as to be orthogonal to the inner surface of the mounting frame.

(3) In any one of the above (2), the rib-shaped reinforcing portion is integrally formed of synthetic resin as a part of a mounting frame.

(4) An upwardly projecting piece is provided above the inner surface of the opening provided in the desk top plate or the like, and the projecting piece is connected to both ends of a mounting frame having a fitting hole for fitting an outlet box. When the outwardly engaging end of the engaging piece vertically extending below the opening edge of the mounting frame is engaged with the lower surface of the protruding piece and the outlet box is fitted into the opening of the mounting frame, By providing a rib-like reinforcing portion that abuts against the side surface and prevents the inward movement of both engaging pieces, the cross-sectional area of the hanging piece is reduced in the middle to increase the flexibility of the hanging piece. I do.

[0015]

FIG. 1 is a perspective view of a desk provided with an embodiment of the present invention, and FIG. 2 is an enlarged sectional view taken along the line II-II of FIG.

The top plate (11) of the desk (10) has a required number of openings (1).
2) is provided, in which the mounting frame also shown in FIGS.
(14) is fitted.

FIG. 3 is a plan view of the mounting frame (14), and an outlet box (15) is mounted in a central space (16).

FIG. 4 is a front view showing only the front side of the mounting frame (14) shown in FIG. 3, and FIG. 5 is a rear view showing only the rear side. FIG. 6 is a right end view of the mounting frame (14).

The mounting frame (14) is integrally molded from a tough, somewhat hard synthetic resin. (17) is a wide hanging piece hanging from the mounting frame (14) as shown in FIGS. 2 to 6, (18) is
FIG. 2 shows an engaging edge formed over the entire width on the outer side of the lower end.
As shown in the figure, when it is fitted into the opening (12) of the desk (10) or the like from above, it is engaged with the lower surface of the protruding piece (19) facing upward inside the opening (12) by its own elasticity. Combine.

Reference numeral (20) denotes a horizontally long hole provided to increase the flexibility of the hanging piece (17). A pair of vertical cuts (21) provided so as to sandwich the hanging piece (17) has the same effect.

As shown in FIG. 5 which is a rear view, a pair of left and right narrow hanging pieces (22) extend downward from the mounting frame (14) and have outward hooks at the lower ends thereof. 23), as shown in FIG. 2, when fitted into the opening (12) of a desk or the like from above, the lower surface of the engagement end (24) provided inside the opening (12) has its own elasticity. To engage. Vertical cuts (25) are also provided on the left and right of the hanging piece (22) to increase the flexibility of the hanging piece (22).

In FIG. 2 and FIG. 5, both ends (26) and the middle part (27) of the hanging piece (17), and the end (28) of the hanging piece (22).
Is provided with a rib-like reinforcing portion (29) that extends perpendicularly to the inner surface of the mounting frame (14). Therefore, as shown in FIG. 2, when the outlet box (15) is fitted, the locking portions (31) at both ends of the outlet box (15) are fitted to the step (30) of the rib-shaped reinforcing portion (29). Since the plugs are engaged in close contact, the outlet box (15) and the mounting frame (1
Even if a large force is applied between the rib-shaped reinforcing portion (4) and the rib-shaped reinforcing portion (29), the rib-shaped reinforcing portion (29) does not deform and does not fall off.

However, if an excessive force is applied between the outlet box (15) and the mounting frame (14) when inserting and removing the plug, each of the hanging pieces (17) should be prevented from being damaged. To allow the outlet box (15) to be detached from the mounting frame (14).

[0024]

【The invention's effect】

(a) Conventionally, the support frame and the inner plate of the outlet box were separately manufactured and assembled using a metal plate, but are integrally molded with a synthetic resin to facilitate processing and assembly, and When the outlet box is fitted into the opening of the mounting frame, the rib-like reinforcing portion that abuts against the side surface and prevents the inward movement of both engaging portions is integrally formed, so that the engaging portion comes off. Nothing.

(B) By providing the rib-shaped reinforcing portion perpendicular to the inner surface of the mounting frame, even when a large force is applied between the outlet box and the support when the plug is inserted and removed, the rib can be deformed and dropped. Absent.

(C) Since the rib-shaped reinforcing portion is integrally molded as a part of the mounting frame, the process is simplified.

(D) By providing a long hole or a cut in each hanging piece, the flexibility of the hanging piece is increased.
If an excessive force is applied at one time, the hanging piece escapes from the mating engagement portion and escapes from damage. To do so, the cross-sectional area in the middle of the hanging piece may be reduced, and instead of providing the cut, the thickness may be slightly reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view of a desk provided with an embodiment of a mounting device for an outlet box such as a desk of the present invention.

FIG. 2 is an enlarged cross-sectional view taken along the line II-II in FIG. 1, and is therefore a cross-sectional view of an assembled state of the outlet box mounting device for a desk or the like according to the present invention.

FIG. 3 is a plan view of an outlet box mounting frame in an embodiment of the outlet box mounting device for a desk or the like according to the present invention.

FIG. 4 is a front view of a mounting frame according to the embodiment of the present invention.

FIG. 5 is a rear view of the mounting frame according to the embodiment of the present invention.

FIG. 6 is a right end view of the mounting frame according to the embodiment of the present invention.

FIG. 7 is an exploded cross-sectional view of a support frame and an inner plate of a conventional outlet box mounting device such as a desk.

FIG. 8 is an exploded sectional view of a main part of a conventional outlet box mounting device such as a desk.

FIG. 9 is an assembled view of a part of a conventional outlet box mounting device such as a desk.

[Explanation of symbols]

 (00) Desk (01) Support frame (02) Inner plate (03) Outlet box (04) Opening (05) Lower end engaging part (06) Opening inner protrusion (07) Opening inner protrusion (10) Desk ( 11) Top plate (12) Opening (13) Hanging piece (14) Mounting frame (15) Outlet box (16) Empty space (17) Hanging piece (18) Engagement piece (19) Engagement end (20) Length Hole (21) Cut (22) Hanging piece (23) Outward hook (24) Engagement end (25) Cut (26) Both ends (27) Middle part (28) End (29) Rib-shaped reinforcement ( 30) Step (31) Outlet box both ends locking part

Claims (4)

[Claims] An upwardly projecting piece is provided above an inner surface of an opening provided on a tabletop of a desk or the like, and the projecting piece is engaged with both ends of a mounting frame having a fitting hole for fitting an outlet box. When the outwardly engaging end of the engaging piece vertically provided below the opening edge of the mounting frame is engaged with the lower surface of the protruding piece, and the outlet box is fitted into the opening of the mounting frame, Characterized in that there is provided a rib-like reinforcing portion for preventing the inward movement of both engagement pieces in contact with the outlet box. 2. The mounting device for an outlet box in a desk or the like according to claim 1, wherein a plurality of the rib-shaped reinforcing portions are provided orthogonal to an inner surface of the mounting frame. 3. The mounting device for an outlet box in a desk or the like according to claim 1, wherein the rib-shaped reinforcing portion is integrally formed of a synthetic resin as a part of a mounting frame. 4. An upwardly projecting piece is provided above an inner surface of an opening provided in a tabletop of a desk or the like, and the projecting piece is engaged with both ends of a mounting frame having a fitting hole for fitting an outlet box. When the outwardly engaging end of the engaging piece vertically provided below the opening edge of the mounting frame is engaged with the lower surface of the protruding piece, and the outlet box is fitted into the opening of the mounting frame, And a rib-shaped reinforcing portion for preventing the inward movement of both engaging pieces is provided, and the cross-sectional area of the hanging piece is reduced in the middle to increase the flexibility of the hanging piece. A device for mounting an outlet box on a desk or the like, characterized in that: