JP3287106B2 - Desktop wiring device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a desk top wiring device for providing a wiring function on a desk top plate, and more particularly, to a desk top having a structure having a lower surface exposed at an edge of the top plate. The present invention relates to a desktop wiring device having an outlet box protruding from an upper surface of an edge of a desk top plate.

[0002]

2. Description of the Related Art Conventionally, an OA desk having a wiring duct along a rear edge of a desk top plate and having an outlet box mounted in the wiring duct has already been provided. There are already provided ones in which an outlet box body is fixed in a protruding state on a desk top plate, but all have a special top plate structure for mounting the outlet box body.

In order to easily attach an outlet box body to a desk having a structure in which an edge lower surface of a top plate is exposed, the outlet box body is directly mounted on an upper surface of an upper plate portion of a substantially U-shaped fixing bracket in a side view. Or, it is fixed via a support arm, the upper plate portion is placed on the upper surface of the edge of the top plate, and the lower plate portion is disposed below the lower surface of the edge with an interval, and the lower plate portion is screwed from below. A pressing plate arranged at the upper end of the mounting bolt penetrated is pressed against the lower surface of the edge, and the edge of the top plate is sandwiched between the upper plate and the upper plate, or the outlet plate is spring-biased. There is also provided a structure in which one clip is fixed or one clip is integrated with the outlet box body, and the clip is attached to the edge of the top plate.

However, in the mounting structure using the fixing bracket,
The mounting bolt must be rotated in the narrow space under the edge of the top plate, which is not only extremely operable, but also when the mounting bolt is rotated with the pressing plate of the mounting bolt pressed against the bottom surface of the top plate. Even if the bolt is free to rotate, the friction between the two causes the pressing plate to rotate and scratch the lower surface of the top plate, or the upper plate portion is directly pressed against the upper surface of the top plate. The top surface of the plate may be damaged. on the other hand,
The mounting structure using the clip has a low mounting strength because it is held by the elastic biasing force of the spring, and easily displaces because it is not completely fixed to the top plate.

[0005] Further, when a partition panel is disposed near the edge of the desk top plate, or when the desk panel is disposed above the rear edge of the desk top plate, the mounting position of the outlet box body is set. When the outlet box body is mounted close to the partition panel or desk panel, the wiring cord can be pulled out in either direction on both sides. The structure of the outlet box body is required, but none of the conventional ones can satisfy those requirements.

[0006]

SUMMARY OF THE INVENTION In view of the above-mentioned situation, the present invention is intended to solve a problem in that a desk having a structure in which the lower surface of an edge of a top plate is exposed is operated by operating only from above. As an option, the outlet box can be firmly mounted, there is no risk of damaging the upper and lower surfaces of the top plate, the outlet box can be mounted at different distances from the edge of the top plate, and the outlet box body The present invention provides a desktop wiring device that can pull out a wiring cord from any direction on both sides even if the back surface of the device is brought close to a partition panel or a desktop panel, can be easily assembled, and the like. It is in.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention forms a space which is open to the rear side at the lower end of an outlet box body provided with a plug insertion port on the front side. An upper plate portion and a table top plate in which a head of a mounting bolt vertically mounted on the outlet box body so as to be rotatable in a fixed position is disposed on an upper surface, and a tip end of a screw shaft is disposed in the space portion, and is inserted into the space portion. comprising a fixing bracket in a side view substantially U-shaped having a vertical plate portion connecting the lower plate portion and their placing on the edge lower surface of Nishigoren each other and the upper plate portion screw shaft of the fixing bracket
So that the fixing bracket moves upward with the rotation of the screw shaft.
A desktop wiring device was constructed.

[0008] Further, a long hole is formed in the upper plate portion of the fixing bracket along the longitudinal direction, and a screw shaft of the mounting bolt passing through the long hole is arranged on a lower surface of the upper plate portion. It is a preferred embodiment to be screwed into the hole.

A cord insertion hole is formed at one of the upper and lower intermediate portions of the outlet box body, on one side of the screw shaft mounting portion of the mounting bolt, and is open to the rear.
It is also a preferred embodiment that a cord lead groove continuous with the cord insertion hole and opened on both side surfaces and a back surface is provided.

[0010] The outlet box body is made up of a front case in which an outlet is fixed and a plug insertion port is provided on the front side, and a case after the mounting bolts and fixing brackets are mounted. The cord insertion hole is formed by joining and fixing, and closing the one side opening end of the recess provided on the rear case on one side and the end face side with a cover piece that can be inserted from the end face side. It is practical to do that.

[0011]

According to the desk wiring apparatus of the present invention having the above-mentioned contents, the outlet box body is placed on the upper surface of the edge of the top plate, and the vertical plate of the fixture is brought into contact with the edge of the top plate and the lower plate If the head of the mounting bolt located on the upper surface of the outlet box body is rotated in one direction in a state where the portion is arranged on the lower surface of the edge, the upper plate portion of the fixing bracket screwed and linked with the screw shaft of the mounting bolt. Moves upward in the space, that is, the fixing bracket is pulled toward the outlet box body side, so that the lower plate portion presses the lower surface of the edge of the top plate, and the lower plate portion and the outlet box body sandwich the top plate edge portion. In this mounting state, the outlet box protrudes from the upper surface of the edge of the top plate, and the plug insertion port provided on the front side thereof can be used. Also, if the head of the mounting bolt is rotated in the opposite direction, the fixing bracket will move down and the lower plate will separate from the lower surface of the edge of the top plate, and the outlet box body will be removed or the mounting position will be changed. Becomes possible.

[0012] Further, a long hole is formed in the upper plate portion of the fixing bracket along the longitudinal direction, and a screw shaft of the mounting bolt passing through the long hole is arranged on a lower surface of the upper plate portion. If it is screwed into the hole, the mounting position of the outlet box body with respect to the top plate edge is within the length of the long hole, with the vertical plate portion of the fixing bracket abutting on the top plate edge. When the partition panel is arranged close to the edge of the tabletop, or when the tabletop panel is arranged above the rear edge of the tabletop, the outlet can be set freely. The box body can be attached to the edge of the top plate in close proximity according to the arrangement position of the panel.

In addition, a cord insertion hole which is open to the back side is formed at one of the upper and lower intermediate portions of the outlet box body and on one side of a screw shaft mounting portion of the mounting bolt,
In the case where a cord lead groove continuous with the cord insertion hole and opened on both sides and the back side is provided horizontally, the wiring cord connected to the outlet is led out from the cord insertion hole to the back side, and the cord lead groove is provided. By arranging inside
Even when the partition panel or the desk panel is located close to the back surface of the outlet box body, the wiring cord can be drawn out from either direction on both sides of the outlet box body.

[0014] The outlet box body is connected to a front case in which an outlet is fixed and a plug insertion port is provided on the front side, and the case after the mounting bolts and the fixing brackets are attached, to each other. The cord insertion hole is formed by joining and fixing, and closing the one side opening end of the recess provided on the rear case on one side and the end face side with a cover piece that can be inserted from the end face side. By doing so, even before the outlet where the wiring cord is connected to the front case is attached to the front case, prior to the operation of combining the front case and the rear case, the front case is inserted into the recess forming the cord insertion hole of the rear case. After receiving the wiring cord, a cover piece is inserted and attached from the end face side to the opening end of the concave portion, and then the front case and the rear case are joined and fixed at the end faces, so that the wiring cord can be inserted. Than it can be derived to the back side from. In addition, if a knot or locking device for retaining is fixed to the end of the wiring cord in advance and the cable cannot be inserted from the end into the cord insertion hole, the wiring cord should be positioned in the code insertion hole by the above-mentioned operation. Is possible.

[0015]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a first embodiment of the present invention; 1 to 4 show a typical embodiment of a desk wiring apparatus according to the present invention, in which 1 is a desk, 2 is a top plate, 3
Denotes an outlet box body, 4 denotes a mounting bolt, and 5 denotes a fixture. Here, FIG.
2 shows a state in which the outlet box body 3 is mounted with the mounting bolts 4 and the fixing fittings 5, FIG. 2 is an exploded perspective view showing the relationship between the outlet box body 3, the mounting bolts 4 and the fixing fittings 5, and FIG. FIG. 4 is a perspective view of the outlet box body 3 as viewed from behind.

In the desk wiring apparatus of the present invention, a space 9 opened toward the back surface 8 is formed at the lower end of the outlet box body 3 provided with the plug insertion port 7 on the front surface 6 side. A head 10 of the mounting bolt 4 vertically installed to be rotatable at a fixed position is disposed on the upper surface 11, and a tip end of the screw shaft 12 is disposed in the space 9, and an upper plate portion inserted into the space 9. 13 and a lower plate portion 16 disposed on the lower surface 15 of the edge portion 14 of the tabletop plate 2 and a vertical metal plate portion 17 connecting the lower plate portion 16 and a substantially U-shaped fixing bracket 5 in a side view. The plate portion 13 and the screw shaft 12 are screwed and linked with each other,
The fixture 5 moves upward with the rotation of the shaft 12
The gist is to become.

Specifically, as shown in FIGS. 2, 3, and 8, a long hole 18 is formed in the upper plate portion 13 of the fixing bracket 5 along the longitudinal direction, and the long hole 18 is formed through the long hole 18. The screw shaft 12 of the mounting bolt 4 is screwed into a screw hole 20 of a fixing plate 19 disposed on the lower surface of the upper plate portion 13, and the head 10 of the mounting bolt 4 is rotated in one direction, thereby fixing the fixing plate. The upper plate 13 is moved upward by moving the upper plate 19 upward. here,
A screw hole is formed at a predetermined interval in the upper plate portion 13 without using the fixing plate 19, and the screw shaft 1 of the mounting bolt 4 is formed in the screw hole.
2 may be screwed directly, but the structure in which the long hole 18 and the fixing plate 19 are screwed and linked is superior in fine adjustment of the mounting position of the outlet box body 3 and mounting workability.

As shown in FIG. 2, FIG. 3, and FIG. 4 to FIG. 9, one side of the outlet box body 3 at the upper and lower intermediate portion where the screw shaft 12 of the mounting bolt 4 is mounted. A cord insertion hole 21 opened to the back surface 8 side is formed in the
An open cord lead-out groove 23 is provided laterally on the rear surface 22 and the rear surface 8. Then, a wiring cord 25 connected to an outlet 24 attached to the outlet box body 3 is inserted into the cord insertion hole 21 and led out to the rear surface 8 side, and the wiring cord 25 is bent to one side to draw out the cord. It is arranged in the groove 23 and pulled out from the side of the outlet box body 3.

More specifically, as shown in FIGS.
The outlet box body 3 is provided with an outlet 24 inside.
A front case 3a in which a front end 6 is provided and a plug insertion port 7 is provided on the front surface 6 side, and a case 3b after the mounting bolts 4 and the fixing fittings 5 are attached, the end faces 26, 26 of which are joined to each other to form a screw 27. , 27, and a cover piece 29 that can be inserted into the rear case 3b from the end face 26 with an open end on the one side face 22 side provided on one side face 22 and open to the end face 26 side. And the cord insertion hole 21 is formed. Here, the wiring code 25 is
Usually, one end is connected to the outlets 24, 24 by soldering or the like, and the plug 30 is attached to the other end for delivery. Therefore, the outlet 24 and the wiring cord 25 are integrated into an outlet box body. 3, it is impossible to insert the wiring cord 25 into the cord insertion hole 21 from the end of the wiring cord 25. However, after the wiring cord 25 is positioned in the concave portion 28 constituting the code insertion hole 21,
This can be achieved by fitting the cover piece 29 from the end face 26 side and closing the opening end of the recess 28 on one side face 22 side. Then, in this state, the front case 3a and the rear case 3b are fixed to each other by joining their end faces 26, 26 together, so that the cover piece 29 is prevented from falling off by the end face 26 of the front case 3a. In the structure shown, the cover piece 29 is fitted and inserted into the opening end of the concave portion 28, and the illustrated one has projections formed on the upper and lower edges of the cover piece 29, and the projections are formed in guide grooves formed on the opening edge. 2 illustrates a fitting structure.

FIGS. 2, 3, 5, 6, and 9 show a structure in which the mounting bolts 4 are rotatably mounted on the outlet box body 3, that is, the rear case 3b.
That is, a through hole 31 is formed in the upper surface 11 of the rear case 3b, and the space is narrower than the diameter of the through hole 31 at a predetermined distance inside the rear case 3b and on both sides below the through hole 31. The step portions 32, 32 set wider than the diameter of the screw shaft 12 are formed horizontally, and both step portions 32, 3 are formed.
The reinforcing plate 33 extends downward from the inner edge of the space 2 and is continuous with the upper surface plate 34 of the space 9.
A partition plate 36 having a semicircular support surface 35 in a plan view opened to the end surface 26 side is integrally formed at a portion corresponding to the inner wall of
The upper surface plate 34 is formed with a notch 38 having a semicircular support edge 37 in a plan view, which is open to the back surface 8 side.
5 and a support edge 37 form a support hole having a circular shape in plan view for rotationally supporting the screw shaft 12. An annular projection 39 is integrally formed on the lower surface of the head 10 of the mounting bolt 4 so as to be rotatably fitted into the through-hole 31 and slidably contact the upper surfaces of the two step portions 32. Accordingly, the screw shaft 12 of the mounting bolt 4 is vertically installed in the rear case 3b, and its tip is located in the space 9 and inserted into the long hole 18 of the fixing bracket 5, and then the screw hole 20 of the fixing plate 19 is formed. Head 1
When the rotating member 0 is rotated, the fixing fitting 5 is moved upward by being supported by the steps 32, 32 at which the annular projection 39 is locked. Then, when the lower plate portion 16 of the fixing bracket 5 comes into contact with the lower surface 15 of the top plate 2, the tension acting on the screw shaft 12 passes through the step portion 32 and the reinforcing plate 33 and the lower end surface 4 of the rear case 3 b.
0, and the lower end surface 40 is pressed against the upper surface 41 of the top plate 2. It is also practical to form an annular groove at the center of the annular protrusion 39 below the upper surface 11 and fit a retaining ring such as an E-ring into the annular groove.

As shown in FIG. 2 and FIG. 3, the fixing bracket 5 is devised to increase its strength, and the upper plate portion 13 has a central portion protruding in the length direction. A base 42 is formed, and contact pieces 43, 43 facing upward on both sides of the lower plate portion 16 are formed by bending, and the center of the corner between the vertical plate portion 17, the upper plate portion 13, and the lower plate portion 16 is formed. A corner plate 44 inclined at about 45 ° is press-formed at the portion.

The front case 3a and the rear case 3b
Is fixed on the end face 26 of the upper surface 11 of the rear case 3b.
And a projecting edge 46
And a connecting plate 47 extending from the upper surface plate 34.
And an inclined attachment piece 48 is formed at the end of the connecting plate 47, and the attachment piece 45 is attached to the front case 3a.
Abuts on the upper end of the end face 26 side of the
7 is brought into contact with the inner part of the front case 3a, and the screws 27, 27
The structure to fix each is adopted. Here, the space 9 below the upper plate 34 is open to the end surface 26 side and continues below the connecting plate 47, and the upper plate 13 of the fixing bracket 5 is inserted below the connecting plate 47. Have to be able to. Thus, in the range where the relative position between the outlet box body 3 and the fixture 5 can be changed, that is, in a state where the vertical plate portion 17 is disposed in contact with the edge of the top plate 2,
2 can secure a sufficient stroke length to move in the long hole 18. In addition, the electrode portion of the outlet 24 is exposed above the connection plate 47.
7, the short circuit caused by the contact of the fixing member 5 with the electrode portion can be reliably prevented.

In the desk wiring apparatus of the present invention, as shown in FIG. 7, a partition panel 49 is installed near the edge 14 of the top plate 2 or the edge 14 of the top plate 2 is arranged near the wall surface. Even when the rear surface 8 of the outlet box body 3 is in contact with the partition panel 49 or the wall surface or is fixed at a slight interval, the wiring cords 25 are disposed in the cord drawing grooves 23 so as to be sideways. As shown in FIG. 3, a desk panel 50 is installed on the upper surface 41 of the edge 14 of the top plate 2 at such an interval that the upper plate 13 of the fixture 5 can pass through. Even when the back surface 8 of the outlet box body 3 is in contact with the desktop panel 50 or is fixed at a slight interval, the wiring cord 25 is similarly pulled out to the side by disposing the wiring cord 25 in the cord drawing groove 23. It is possible. Here, the pulling-out direction of the wiring cord 25 can be set to any direction on both side surfaces 22 of the outlet box body 3 as shown in FIG.

In the above embodiment, the dual outlet 2
FIG. 10 shows an example of a vertical type in which 4, 24 are vertically arranged.
The same applies to a horizontal type in which two outlets 24, 24 are arranged on the left and right as shown in FIG. Further, in the above embodiment, the front surface 6 is formed as an inclined surface, but the present invention is also applicable to a case where a vertical surface or a horizontal surface is used as the front surface.

[0025]

The above-described desk wiring apparatus of the present invention has the following excellent effects.

According to the first aspect, the outlet box body is placed on the upper surface of the edge of the top plate, and the vertical plate portion of the fixing bracket is in contact with the edge of the top plate, and the lower plate portion is disposed on the lower surface of the edge portion. In the installed state, by simply rotating the head of the mounting bolt located on the upper surface of the outlet box body in one direction, the fixing bracket is pulled toward the outlet box body side, and the lower plate presses the lower surface of the edge of the top plate. The edge of the top plate can be firmly fixed by holding the edge of the top plate between the lower plate portion and the outlet box body, and the mounting bolt can be rotated from above the outlet box body, so that the operability is very excellent. . Also,
Since the upper plate portion of the fixture does not contact the upper surface of the top plate, there is no danger of damaging the upper surface. Then, simply by rotating the head of the mounting bolt in the opposite direction, the fixing bracket moves downward, and the lower plate part is separated from the lower surface of the edge of the top plate, and the outlet box body can be easily removed, or the mounting position can be easily removed. Can be changed.

According to the second aspect, the mounting position of the outlet box body with respect to the top plate edge is set within the range of the length of the elongated hole while the vertical plate portion of the fixing bracket is in contact with the top plate edge. Since it can be set freely and the outlet box body and the fixing bracket are not separated, product management is easy. Further, even when a partition panel is arranged close to the edge of the desk top plate, or when a desk panel is arranged above the rear edge of the desk top plate, the outlet box body is arranged on the panel. Depending on the installation position, it can be attached to the edge of the top plate in close proximity.

According to the third aspect of the present invention, the wiring cord connected to the outlet is led out from the cord insertion hole to the rear side, and is disposed in the cord lead-out groove, so that the partition is located close to the rear surface of the outlet box body. Even when the panel or the desk panel is located, the wiring cord can be pulled out from any direction on both sides of the outlet box body.

According to the fourth aspect, even when an outlet to which a wiring cord is connected in advance is attached to the front case, the cord insertion hole of the rear case is formed before the operation of combining the front case and the rear case. After accommodating the above-described wiring cord in the recess, a cover piece is inserted and attached from the end face side to the opening end of the recess, and then the front case and the rear case are joined and fixed at the end faces, whereby the wiring cord is inserted. Since it can be led out from the hole to the rear side, the assembling process can be simplified and the cost can be reduced. In particular, if a knot or locking device for retaining is fixed to the end of the wiring cord in advance and the cable cannot be inserted from the end into the cable insertion hole, the wiring cord can be easily positioned in the cable insertion hole by the above operation. Can be done.

[Brief description of the drawings]

FIG. 1 is a perspective view of a desk to which a desk wiring device of the present invention is mounted.

FIG. 2 is an exploded perspective view showing a main part of the present invention.

FIG. 3 is a longitudinal sectional view showing a state in which an outlet box body is attached to a desk top plate.

FIG. 4 is a perspective view of the outlet box body viewed from the back side.

FIG. 5 is a side view of the rear case.

FIG. 6 is a front view of the rear case.

FIG. 7 is a side view showing a state in which the outlet box body is attached to a desk top plate.

FIG. 8 is a rear view similarly showing a partial cross section.

FIG. 9 is a cross-sectional view of a main part showing a state in which a wiring cord is led out of the outlet box body.

FIG. 10 is a perspective view showing another embodiment.

[Explanation of symbols]

 Reference Signs List 1 desk 2 top plate 3 outlet box body 3a front case 3b rear case 4 mounting bolt 5 fixing bracket 6 front surface 7 plug insertion port 8 back surface 9 space 10 head 11 top surface 12 screw shaft 13 upper plate portion 14 edge 15 lower surface Reference Signs List 16 lower plate part 17 vertical plate part 18 long hole 19 fixing plate 20 screw hole 21 cord insertion hole 22 side surface 23 cord extraction groove 24 outlet 25 wiring cord 26 end face 27 screw 28 concave part 29 cover piece 30 plug 31 through hole 32 step part 33 Reinforcement plate 34 Top plate 35 Support surface 36 Partition plate 37 Support edge 38 Notch 39 Annular projection 40 Lower end surface 41 Upper surface 42 Projection table 43 Contact piece 44 Corner plate 45 Mounting piece 46 Protrusion edge 47 Connecting plate 48 Mounting piece 49 Partition Panel 50 Desk panel

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Kaoru Miyamoto 1-6-11 Awaji-cho, Chuo-ku, Osaka-shi Itoki Co., Ltd. (56) References JP-A-60-194712 (JP, A) Sho Akai 62-137586 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A47B 13/00 A47B 97/00 H01R 25/00 H02G 3/28

Claims (4)

(57) [Claims] 1. A head portion of a mounting bolt vertically formed so as to be rotatable in a fixed position in an outlet box body at a lower end portion of the outlet box body provided with a plug insertion port on a front side thereof. Part is arranged on the upper surface, the tip of the screw shaft is arranged in the space, the upper plate inserted into the space and the lower plate arranged on the lower surface of the edge of the tabletop, and the vertical connecting them. A fixing member having a substantially U-shape in side view having a plate portion, and an upper plate portion of the fixing member and the screw shaft are screwed together.
So that the fixing bracket moves upward with the rotation of the screw shaft.
Desk interconnection apparatus characterized by comprising in the. 2. A screw of a fixing plate, wherein a long hole is formed in an upper plate portion of the fixing metal along a longitudinal direction, and a screw shaft of the mounting bolt passing through the long hole is arranged on a lower surface of the upper plate portion. The desk wiring device according to claim 1, wherein the desk wiring device is screwed into the hole. 3. A cord insertion hole which is open to the back side at one side of a screw shaft mounting portion of the mounting bolt, which is formed in a vertical intermediate portion of the outlet box body, and which is continuous with the cord insertion hole. 3. The desktop wiring device according to claim 1, wherein a cord drawing groove opened on both sides and a back surface is provided laterally. 4. The outlet box body has a front case in which an outlet is fixed and a plug insertion port is provided on a front side, and a case after the mounting bolts and fixing brackets are mounted. The cord insertion hole is formed by joining and fixing, and closing the one side opening end of the recess provided on the rear case on one side and the end face side with a cover piece that can be inserted from the end face side. 4. The desk wiring device according to claim 3, wherein: