JPH0679086U - Outlet box mounting device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a mounting device that allows an outlet box to be easily attached to and detached from a mounting hole of a top plate or a wall surface of a desk without using a tool or the like. An operating member 18 including a vertical guide plate 21, a pair of cam grooves formed by symmetrically inwardly inclined cam surfaces 24 and 25, and an operating lever 20 exposed at an end surface of an outlet box. A cam follower 28, 29 engaged with one of the cam grooves, a horizontal guide 31,
32 and a locking member 19 including a locking piece 33 protruding outward, and by lowering the operating member 18, the locking piece 33 is projected to the side surface of the outlet box, so that the mounting hole of the mounting hole. Engage and secure the edge.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a device for mounting an outlet box for power supply on a suitable place such as a top plate of a desk, a wall surface or a pillar in a room, and more particularly to a mounting device that allows an outlet box to be easily attached and detached.

[0002]

[Prior art]

 Conventionally, the outlet box is usually mounted by bolts or the like, but for easier mounting, for example, the means shown in FIGS. 7 and 8 are used.

In the mounting device of FIG. 7, the leaf springs (102) are mounted on the upper and lower surfaces of the outlet box (101) by means of the bolts (103), and the square holes (see FIG. The outlet box (101) is fixed by inserting the socket box (101) into the (105) and abutting the tip of the leaf spring (102) against the back surface of the plate material (104) and crimping. is there.

In the mounting device of FIG. 8, instead of the leaf spring (102) of FIG. 7, a locking piece (107) is integrally formed on the upper and lower surfaces of a plastic outlet box (106). Therefore, as in FIG. 7, the outlet box (106) is inserted into the square hole of the mounting portion and fixed by the locking piece (107).

[0005]

[Problems to be solved by the device]

 The mounting device of FIGS. 7 and 8 can be easily mounted by simply press-fitting the outlet box into the square hole (105) of the mounting plate (104) when mounting, but when detaching, The engagement of the leaf spring (102) or the locking piece (107) with the back surface of the mounting plate (104) must be released.

Since this releasing operation cannot be performed from the front surface side of the mounting plate (104), it is necessary to remove the mounting plate (104) itself from the mounting portion when removing it, which is troublesome. There is a convenience.

Particularly, recently, because of the widespread use of laptop computers that can be easily moved to the installation position, it is necessary to install a large number of power outlets at various places in the office.

[0008] It is usually uneconomical to install a sufficient number of power outlets from the beginning so that it can be dealt with even when the office layout is changed, because the number of power outlets increases unnecessarily. In many cases, the minimum required number is Celsius.

When it is necessary to use more electric appliances than the number of power outlets installed in such an office, the octopus foot that branches the electric wire from one power outlet with, for example, a table tap or the like. This will result in wiring, which may be dangerous, and may damage the aesthetics of the office.

In order to remedy this inconvenience, a so-called system in which an outlet box is mounted on the top plate of each desk and electric power is supplied to the outlet box by an electric wire arranged in a wiring duct attached to the desk. It is effective to use the desk.

However, even in the case of the system desk, depending on the work content of the occupant of the desk, if the power outlet is not necessary, or conversely, if the number of existing outlets is insufficient, the outlet box should be installed. It needs to be removed or added.

In this case, if the outlet box is attached with bolts, there is a problem that it takes time to attach and detach, so it is desirable that the outlet box can be attached and detached easily and quickly without using tools or the like.

An object of the present invention is to provide a device for mounting an outlet box that meets this demand.

[0014]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention is configured as follows.

A pair of left and right support portions formed by extending in the longitudinal direction are formed on both side surfaces of the outlet box formed in a substantially rectangular parallelepiped position at positions contacting the edge of the mounting hole, and below the support portions. , Move in the horizontal direction by interlocking at least one pair of locking pieces installed so as to project and retract on both sides of the outlet box and one pair of locking members each projecting one locking piece. , An operating member for symmetrically projecting and retracting the respective locking pieces on both sides of the outlet box, and a guide plate in the vertical direction, and the inward and leftward symmetrically with respect to the center line. An operating member composed of a pair of downwardly inclined cam grooves, an operating lever that is exposed to the end surface through a guide groove that is transparently provided on the end surface of the contour box, a spring that urges the operating member downward, and an operating member. Element Pair of locking members composed of a cam follower that engages with one of the cam grooves of the guide, a guide that slides into a horizontal guide hole formed on the side surface of the outlet box, and a locking piece that projects from the outer surface of the guide. The outlet box mounting device is characterized in that each engaging piece is pulled into the outlet box by raising the operating member and each engaging piece is projected by lowering the operating member.

It is desirable that the operating lever is formed in a substantially rectangular parallelepiped, and the operating member is moved up and down between a lower position where the upper surface of the operating lever almost coincides with the upper surface of the outlet box and an upper position where the operating lever projects.

It is desirable to engrave a large number of horizontal grooves on the surface of the operation lever exposed on the end surface of the outlet box.

It is desirable to provide a slide cover that covers the upper surface of the outlet box in a state where the operation member is lowered.

[0019]

[Action]

 When the operating lever exposed on the end surface of the outlet box is pulled up to raise the operating member, the pair of locking members move symmetrically inward as the cam follower slides along the cam groove. , Since each locking piece is pulled into the outlet box, the outlet box can be inserted into the mounting hole.

When the operating member is lowered by the urging force of the spring or the operation of the operating lever, the pair of locking pieces protrude, and the edge of the mounting hole is sandwiched between the pair of locking pieces and the supporting portion formed above. Secure the outlet box.

By providing a large number of horizontal grooves on the exposed surface of the operation lever, a slip stopper is formed, and the operation member is easily moved up and down.

By closing the slide cover in a mounted state in which the operation lever is sunk in the outlet box, accidents of accidentally pulling up the operation lever are prevented.

[0023]

【Example】

 1 and 2 are external perspective views of an outlet box provided with the attachment device of the present invention, FIG. 1 showing a state of attachment and detachment, and FIG. 2 showing a state of attachment.

The outlet box (10) is formed by combining the upper body (11) and the lower body (12) into a substantially rectangular parallelepiped hollow box shape, and is fixed to the desk top plate (1) and its rear edge. It is configured to be mounted in a mounting hole formed at the joint with the wiring duct (2).

The upper body (11) is provided with a plurality of sets of sockets (13) on its upper surface, and support portions (14) (15) that engage with the edges of the mounting holes are provided on both side surfaces by extending in the longitudinal direction. There is.

A longitudinal guide groove (16) is formed on both side edges of the upper end of the upper body (11), and a slide cover (17) is slidably attached to the guide groove (16).

At both ends of the outlet box (10), the mounting device of the present invention is incorporated. The mounting device is composed of an operating member (18) having an operating lever (20) and a pair of left and right locking members (19) having locking pieces (33).

FIG. 3 is a perspective view showing the operating member (18) and the pair of locking members (19), and FIG. 4 shows the operating member (18) and the locking member (19) in the console box (10). FIG. 3 is a partially cutaway perspective view showing a state in which is incorporated.

The operation member (18) is a guide in which a guide plate (20) attached to an operation lever (20) having a substantially rectangular parallelepiped shape is provided in the upper and lower bodies (11) and (12) of the outlet box (10). It engages with the groove and is slidably supported in the vertical direction.

A guide groove (34) (see FIG. 1) into which the operation lever (20) is vertically slidably fitted is provided on the end surface of the upper body (11).

An upper cam (22) and a pair of left and right lower cams (23) are provided on the inner surface of the operation lever (20) so as to project inward.

On both ends of the lower surface of the upper cam (22), there are formed cam surfaces (24) which incline downward at an angle of 45 degrees.

On the upper surfaces of the pair of lower cams (23), there are formed cam surfaces (25) which incline downward at an angle of 45 degrees.

A spring receiving hole (26) is provided on the upper surface of the upper cam (22), and the spring (27) serves as a device between the upper body (11) and the lower surface of the upper wall of the upper body (11), and the operating member (18) is provided. It is biased downward.

A pair of left and right symmetrical locking members (19) are provided with an inclined surface (28) slidably contacting the cam surface (24) of the upper cam (22) of the operating member (18) and a lower cam (23). ), A cam follower formed by an inclined surface (29) slidingly contacting the cam surface (25) and a vertical surface (30) connecting the inner ends of the two inclined surfaces (28) and (29).

Further, an upper guide (31) and a lower guide (32) are formed on the outside of the cam follower, and a locking piece (33) is projected on the outside of the sled.

FIGS. 5 and 6 show a state in which the outlet box (10) incorporating the mounting device of the present invention is mounted in the mounting holes at the opposing portions of the desk top plate (1) and the wiring duct (2). It is a sectional view.

Hooks (3) and (4) with which the support portions (14) and (15) on both sides of the upper body (11) engage are formed on both inner edges of the mounting hole.

The pair of locking members (19) insert the respective cam followers between the upper and lower cam surfaces (24) and (25) of the operating member (18), and the upper and lower guides (31) ( 32) is attached by slidingly contacting a guide hole formed in the horizontal direction at the joint between the upper body (11) and the lower body (12).

FIG. 5 shows a state in which the operating member (18) is lowered by the urging force of the spring (27), and FIG. 6 shows a state in which the operating member (18) is raised by the operating lever (20).

In the position of FIG. 5 in which the operating member (18) is lowered, the pair of locking members (19) have their respective cam followers sliding along the upper and lower cam surfaces (24) (25), and Since the upper and lower guides (31, 32) are slidably contacted with the horizontal guide holes to prevent the displacement in the vertical direction, they move symmetrically outward.

By this movement, the locking pieces (33) protruding from the pair of locking members (19) are slidably contacted with the lower edges of the hooks (3) and (4) formed on the peripheral edges of the mounting holes. Or project to a close position.

Therefore, the hooks (3) (4) are sandwiched between the pair of locking pieces (33) and the supporting portions (14) (15) above the locking pieces (33), and the outlet box (10) is fixed. It can be securely fixed and installed.

When the outlet box (10) is attached or detached, the operation lever (20) exposed on the end surface of the upper body (11) is pulled up to move the operation member (18) against the spring (27). Then, the cam followers of the pair of locking members (19) slide along the cam surfaces (24) (25) of the operating member (18), and the locking members (19) are symmetrical. Moving inwardly, each locking piece (33) is retracted inside the outlet box (10) as shown in FIG.

For convenience of pulling up the operation lever (20), a large number of horizontal grooves (35) are engraved on the outer surface exposed at the end surface of the outlet box (10) to prevent slippage. It is desirable to keep.

In the state of FIG. 6 in which the pair of left and right locking pieces (33) are pulled into the outlet box (10), the lower edges of the hooks (3) and (4) of the mounting holes are the locking pieces (33). Since it is released from the engagement with, the outlet box (10) can be inserted into the mounting hole from above, or can be removed by removing it from the mounting hole.

As described above, the outlet box mounting apparatus of the present invention is a socket outlet that can be operated by simply moving the operating member (18) up and down with the operating lever (20) without using a tool such as a screwdriver. Since the box (10) can be attached / detached to / from the mounting hole, it is possible to add an outlet box or remove an existing outlet box extremely easily and quickly.

Further, if the slide cover (17) is installed at a position covering the operation lever (20) with the outlet box (10) attached, the operation lever (20) cannot be pulled up. It is possible to prevent the inconvenience that the installation state of the outlet box becomes unstable by inadvertently moving the operation lever (20).

Although the above-described embodiment has been described as a case where the outlet box (10) is mounted in the mounting hole formed in the top plate of the desk, the mounting device of the present invention is not limited to mounting on the desk. Needless to say, it can also be applied to the case where an outlet box is mounted on the wall surface or floor surface.

[0050]

[Effect of device]

 (a) The outlet box can be easily attached and detached without using a tool such as a screwdriver when attaching or detaching the outlet box to or from a mounting hole provided on a desk or a wall surface.

(B) The support box formed on the main body of the outlet box and the locking pieces protruding on both side surfaces of the main body clamp the edge of the mounting hole to ensure the outlet box. Can be installed stably.

(C) Since the operation surface of the operation lever has a relatively large size and the groove for preventing slippage is provided, the operation is easy and the fingertip is not damaged.

(D) If the slide cover is closed to cover the head of the operating lever in the mounted state, the operating lever cannot be pulled up, so carelessly move the operating lever to mount the outlet box. It is possible to prevent the inconvenience that the state becomes unstable.

[Brief description of drawings]

FIG. 1 is an external perspective view showing a state where an outlet box equipped with a mounting device of the present invention is attached and detached.

FIG. 2 is an external perspective view showing the same state when the device is mounted.

FIG. 3 is an exploded perspective view showing an operation member and a pair of locking members.

FIG. 4 is a partially cutaway perspective view showing a mounting device incorporated in an outlet box.

FIG. 5 is a cross-sectional view showing a mounting device when mounted.

FIG. 6 is a cross-sectional view showing the attachment device at the time of attachment and detachment.

FIG. 7 is a perspective view showing an example of a conventional means for mounting an outlet box.

FIG. 8 is a perspective view showing another example of a conventional mounting means for an outlet box.

[Explanation of symbols]

(1) Desk top plate (2) Wiring duct (3) (4) Hook (10) Outlet box (11) Upper body (12) Lower body (13) Socket (14) (15) Support section (16) Guide groove (17) Slide cover (18) Operating member (19) Locking member (20) Operating lever (21) Guide plate (22) Upper cam (23) Lower cam (24) (25) Cam surface (26) Spring receiving hole (27) Spring (28) (29) Cam follower inclined surface (30) End surface (31) Upper guide (32) Lower guide (33) Locking piece (34) Guide groove (35) Anti-slip groove

Claims (4)

[Scope of utility model registration request] 1. A pair of left and right support portions formed by extending in the longitudinal direction at positions on both side surfaces of an outlet box formed in a substantially rectangular parallelepiped shape, at positions contacting the edge of the mounting hole, and below each support portion. In addition, at least one pair of locking pieces installed so as to appear on both sides of the outlet box and one pair of locking members each projecting one locking piece are interlocked to move in the horizontal direction. , An outlet box mounting device that includes an operating member that symmetrically protrudes and retracts each locking piece on both sides of the outlet box. A pair of cam grooves, an operating member configured by an operating lever that is exposed to the end surface through a guide groove that is provided through the end surface of the outlet box, a spring that urges the operating member downward, and a cam of the operating member. A cam follower that engages with one of the grooves,
It consists of a guide that slides into a horizontal guide hole formed on the side surface of the outlet box, and a pair of locking members composed of locking pieces that project from the outer surface of the guide. An outlet box mounting device, characterized in that each engaging piece is projected by pulling the engaging piece into the outlet box and lowering it. 2. The operation lever is formed in a substantially rectangular parallelepiped shape, and the operation member is moved up and down between a lower position where the upper surface of the operation lever substantially coincides with the upper surface of the outlet box and an upper position where the operation member protrudes. Outlet box mounting device. 3. The outlet box mounting device according to claim 1, wherein a large number of horizontal grooves are formed on the surface of the operation lever exposed at the end face of the outlet box. 4. The outlet box mounting device according to claim 1, further comprising a slide cover that covers an upper surface of the outlet box when the operation member is lowered.