JP2001103636A - Block-penetrating floor receptacle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a block-penetrating floor receptacle which can be simply installed on a floor surface and does not exert influence on a connection part, when a load is applied to a cable to be connected with a receptacle. SOLUTION: This floor receptacle is provided with a center cylinder 1, having a longitudinal direction dimension capable of penetrating a block 4 constituted of a floor system, a floor plate 7 which can be fixed by inserting the plate 7 in the upper inside of the center cylinder 1, and a receptacle 10 arranged in the floor plate 7. An external thread part 13 is formed saliently on the bottom surface of the center cylinder 1. By screwing a coupler 14 in the external thread part 13, an elastic member 18 arranged inside the coupler 14 is compressed so as to hold down a cable 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a section-piercing type floor outlet to be attached to a floor of an office or the like, and particularly to a simple installation work and suppresses a cable for connection to a power supply or an information outlet. The present invention relates to a section-piercing floor outlet which does not affect the connection part even when a load is applied to the cable.

[0002]

2. Description of the Related Art Office automation equipment such as personal computers, word processors, facsimile machines, and copiers has been increasing in offices.
Outlets for supplying power to these OA devices or connecting to information communication devices are often provided on floors of offices and the like.

[0003] Therefore, conventionally, a floor box having a knockout hole is arranged at a predetermined location such as under the floor, and a floor plate having a flange portion and a tubular portion connected to each other is fixed to an upper portion of the floor box. An O in the office is provided via a so-called up-outlet or the like, in which a middle cylinder having an outlet is vertically movable within a tubular portion of the floor plate.
A devices are connected.

[0004]

As described above, a floor box is conventionally arranged and fixed under a floor such as a free access floor, and a flange of a floor plate is abutted around a mounting hole formed in the floor. In addition, there has been a problem that a lot of labor is required for the mounting operation, for example, a long screw is screwed into a floor box through a through hole formed in the flange portion to secure the floor box. Also, in conventional floor outlets, cables introduced into the floor box have a structure that is directly connected to an outlet or the like, and the cables cannot be suppressed in the floor box, so a load is applied to the cables. There is a problem that the connection portion is directly affected.

Therefore, the present invention solves the above-mentioned disadvantages of the conventional floor outlet, and makes it extremely easy and reliable to attach the cable to a floor or the like, and to use a cable for connecting to a power supply or information outlet. The purpose of the present invention is to provide a section-through floor outlet that can be suppressed around the cable introduction hole on the bottom surface of the cylindrical body and does not affect the connection part even when a load is applied to the cable. is there.

[0006]

The structure of the present invention for achieving the above object is described in detail below.
A middle cylinder body having a height dimension enough to penetrate a section formed by forming a flange portion on the upper peripheral edge while opening a cable introduction hole on the bottom surface, and a size capable of covering the flange portion of this middle cylinder body And a floor plate having a cylindrical portion that can be fixed by being inserted into the upper end of the middle cylindrical body, an outlet disposed in the cylindrical portion of the floor plate, and an upper surface opening of the cylindrical portion. A plate lid detachably or removably attached to the inside, a male screw part projecting around a cable introduction hole opened in the bottom surface of the middle cylinder, and a female screw that can be screwed into the male screw part, and A coupler having a conical slope formed therein, and an elastic member disposed in a slope formed inside the coupler. The middle cylindrical body is inserted into a through hole opened in a section, and an upper end thereof is formed. Formed on the periphery The flange portion is held in contact with the periphery of the through hole, and then the cylindrical portion of the floor plate is pressed into the upper end of the middle cylinder, and the flange portion of the middle cylinder is covered by the flange portion. Further, the coupler is screwed into a male screw portion to compress an elastic member provided inside the coupler, thereby suppressing a cable for connecting to an outlet provided in a cylindrical portion of the floor plate. This is a section-piercing floor outlet.

According to a second aspect of the present invention, a plurality of concave grooves are formed at predetermined intervals inside the upper end of the middle cylindrical body, and the concave portion of the middle cylindrical body is formed on the outer peripheral surface of the cylindrical portion of the floor plate. A press-fitting auxiliary member made of synthetic resin or rubber that can be press-fitted into the groove is formed, and the floor plate is fixed by press-fitting the cylindrical portion of the floor plate into the upper end inside the middle cylindrical body. A section-piercing floor outlet according to claim 1.

According to a third aspect of the present invention, a plurality of grooves or protrusions are formed at predetermined intervals inside the upper end of the middle cylindrical body, and the protrusions corresponding to the grooves or protrusions are formed. Or a concave groove is formed on the outer peripheral surface of the cylindrical portion of the floor plate,
When the cylindrical portion of the floor plate is inserted into the upper end of the middle cylindrical body, one of the grooves or protrusions engages with the other protrusion or groove to fix the floor plate. 2. The section-piercing floor outlet according to claim 1.

Further, the invention according to claim 4 is the section-piercing floor outlet according to any one of claims 1 to 3, wherein a fireproof material is filled around a cable passing through the middle cylinder.

[0010] According to the floor outlet of the present invention, the middle cylinder penetrates a section such as a floor slab, so that a floor box or the like which has been indispensable in the past is not required at all, and is required for installation of the floor box. It is possible to save time and effort. Further, the flange formed on the upper peripheral edge of the middle cylindrical body is held in contact with the periphery of the through hole formed in the floor slab, and the middle cylindrical body is inserted into the through hole. By simply press-fitting the cylindrical portion into the upper end of the middle cylindrical body, fixation can be achieved, and workability is remarkably improved as compared with the conventional case.

Further, when the coupler is screwed into the male screw portion, the elastic member disposed inside the coupler contracts along the slope portion, whereby the cable can be firmly held down. Therefore, it is possible to provide a section-piercing floor outlet with extremely high reliability without affecting the connection portion of the outlet.

[0012]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a floor outlet according to the present invention. FIG. 1 is an exploded perspective view showing an embodiment of a section-piercing floor outlet according to the present invention, FIG. 2 is a plan view of a middle cylinder, FIG. 3 is a bottom view of a floor plate, and FIG. It is a longitudinal cross-sectional view which shows an example of the use condition of a floor outlet.

In FIG. 1, reference numeral 1 denotes a middle cylinder having an opening 3 for a cable 2 formed on the bottom surface. The middle cylindrical body 1 has a longitudinal dimension that can penetrate a through hole 5 formed in a section 4 of a building made of a concrete floor slab or a wall slab, and a through hole 5 is formed at an upper peripheral edge. Is formed to be able to abut on the periphery.

Reference numeral 7 denotes a cylindrical portion which forms a flange portion 8 having a size capable of covering the flange portion 6 of the middle cylinder 1 and which can be fixed by being inserted into the upper end of the middle cylinder 1. 9, and a space in the cylindrical portion 9 of the floor plate 7 serves as a storage portion for a communication or power outlet 10. Further, a plate lid 12 is detachably attached to the upper surface opening 11 of the floor plate 7.

In the embodiment shown in the drawings, a male screw is formed on the lower surface of the plate lid 12, and the male screw is screwed to a female screw formed near the upper surface opening 11 of the floor plate 7 to be detachable. However, in addition to the screwing, the plate lid 12 may be attached to the upper surface opening 11 of the floor plate 7 so as to be openable and closable via, for example, a hinge (not shown).

The floor plate 7 can be fixed by inserting the cylindrical portion 9 inside the upper end of the middle cylinder 1 as described above. That is, in the illustrated embodiment, a plurality of grooves 20 are provided at predetermined intervals on the inner peripheral surface of the upper end of the middle cylinder 1, and the outer peripheral surface of the cylindrical portion 9 of the floor plate 7 is A press-fitting auxiliary material 21 made of synthetic resin or hard rubber which can be press-fitted into the concave groove 20 of the middle cylinder 1 is projected, and the cylindrical portion 9 of the floor plate 7 is inserted into the upper end of the middle cylinder 1. In doing so, the crimping auxiliary material 21 is
If the press-fitting member 21 is press-fitted in accordance with the groove 20, the pressure-bonding auxiliary member 21 is pressed into the groove 20 and the floor plate 7 is fixed.

Contrary to the above, a crimping assisting member is attached to the inner peripheral surface of the upper end of the middle cylinder 1, and a concave groove into which the crimping assisting member can be fitted is formed on the outer peripheral surface of the cylindrical portion 9 of the floor plate 7. It is needless to say that a concave portion may be provided, and such a modified example is also included in the scope of the present invention. Further, in order to fix the cylindrical portion 9 of the floor plate 7 inside the upper end of the middle cylinder 1, in addition to the above-described embodiment, for example, a plurality of strips may be provided at predetermined intervals inside the upper end of the middle cylinder 1. A groove or a protrusion is formed, and a protrusion or a groove corresponding to the groove or the protrusion is formed on the outer peripheral surface of the cylindrical portion 9 of the floor plate 7. When the cylindrical portion 9 of 7 is inserted, one of the grooves or protrusions may engage with the other of the protrusions or grooves to prevent the floor plate 7 from rotating or fixed. Of course.

Next, reference numeral 13 in the figure denotes a cylindrical male screw portion projecting around the introduction hole 3 of the cable 2 opened on the bottom surface of the middle cylinder 1, and 14 is screwed to the male screw portion 13. This is a coupler having a female screw 15 that can be formed on the inner peripheral surface of the upper end and a conical slope 16 formed inside. The lower end of the coupler 14 has a large opening 17 so that the cable 2 to be introduced can be pulled in from any direction.

Reference numeral 18 denotes an elastic member made of a rubber bush or the like disposed in a conical slope 16 formed inside the coupler 14. A through hole 19 for the cable 2 is formed in the center of the elastic member 18. It is formed. When the female screw 15 of the coupler 14 is screwed into the male screw portion 13 protruding from the bottom surface of the middle cylinder 1, the elastic member 18 is compressed along the inner slope 16 and is inserted into the central insertion hole 19. The located cable 2 is in a fixed state by receiving the compressive force.

In addition, reference numeral 22 in the figure denotes a fire protection material made of rock wool or the like filled around the cable 2 passing through the middle cylinder 1. It is possible to prevent the heat generated in the middle cylinder 1 from affecting the outside.

Reference numeral 23 denotes a small hole formed in the upper end of the middle cylinder 1, which is formed when the cylinder 9 of the floor plate 7 is inserted into the upper opening of the middle cylinder 1. A protrusion 24 protruding from the upper portion of the outer peripheral surface is fitted into the small hole 23, and the protrusion 24 is engaged with the small hole 23 to take out the floor plate 7 in the upward direction. Is prevented. However, as described above, since the floor plate 7 is fixed by firmly press-fitting the crimp assisting member 21 into the groove 20, the projection 24 engages with the small hole 23 separately. There is no special problem even if the structure is not adopted.

In mounting the section through floor outlet according to the present invention, first, the middle cylinder 1 is inserted into a through hole 5 opened in a section 4 of a building made of a floor slab or a wall slab, and the like. The flange 6 protruding from the upper peripheral edge is held in contact with the periphery of the through hole 5 of the section 4 as shown in FIG. Next, the end of the cable 2 is connected to a predetermined portion of the outlet 10, and then the cylindrical portion 9 of the floor plate 7 is pressed into the upper end opening of the middle cylindrical body 1.

As described above, when the cylindrical portion 9 of the floor plate 7 is inserted into the upper end opening of the middle cylinder 1, the crimping assisting member 21 is crimped into the groove 20 or one of the grooves or protrusions. The portion engages with the other protrusion or groove to prevent the floor plate from rotating or being fixed.

The male thread 13 projecting from the bottom surface of the middle cylinder 1 penetrating the section 4 is connected to the cable 2 in advance.
The female screw 15 of the coupler 14 attached to the outer periphery of the screw is screwed. As a result, the elastic member 18 disposed in the coupler 14 is compressed along the slope 16, and the cable 2 located at the center is suppressed. Although not particularly shown, the middle cylinder 1 in the section 4 made of a floor slab or the like is used.
Needless to say, a decorative plate which constitutes a ceiling or the like downstairs at a fixed interval from the lower surface of the section 4 is attached to the penetration side of the partition 4. The floor outlet thus set can be connected to OA equipment in the office by opening the plate lid 12 as necessary.

[0025]

According to the floor outlet of the present invention, the middle cylindrical body penetrates the through hole formed in the section such as the floor slab, so that the floor box and the like which are conventionally indispensable for the installation are completely eliminated. In addition to being unnecessary, it can be fixed simply by press-fitting the cylindrical part of the floor plate into the upper end of the middle cylindrical body, and it is necessary for installation of the floor box in combination with eliminating troublesome screwing work etc. It has become possible to greatly reduce the labor. In addition, since the cable for connecting to the power supply or the information outlet can be suppressed around the cable introduction hole on the bottom surface of the middle cylinder body, even if a reverse load is applied to the cable, the connection portion is affected. Thus, it is possible to provide a floor penetrating section-type floor outlet that does not have any problem.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing one embodiment of a section-piercing floor outlet according to the present invention.

FIG. 2 is a plan view of a middle cylinder.

FIG. 3 is a bottom view of the floor plate.

FIG. 4 is a longitudinal sectional view showing an example of a use state of the section-piercing floor outlet according to the present invention.

[Explanation of symbols]

 1: medium cylinder 2: cable 3: introduction hole 4: section 5: through hole 6: flange portion 7: floor plate 8: flange portion 9: cylindrical portion 10: outlet 11: upper surface opening portion 12: plate cover 13: male screw Part 14: Coupler 15: Female screw 16: Slope 17: Opening 18: Elastic member 19: Insertion hole 20: Concave groove 21: Crimping auxiliary material 22: Fire protection material 23: Small hole 24: Projection

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H02G 3/18 H02G 3/18 A 3/22 3/22 Z F term (Reference) 5E021 FA03 FA16 FB07 FB15 FB21 FC02 GB01 5E087 EE07 MM09 QQ03 RR07 RR14 RR25 5G357 CA06 CB04 CC01 CC05 CD10 CE03 5G361 CA04 CB01 5G363 AA07 AA16 BA01 BA07 CA12 CA15 CB12 CB14

Claims (4)

[Claims] 1. A middle cylinder having a longitudinal dimension enough to allow a cable introduction hole to be opened on the bottom surface and to penetrate a section formed with a flange at the upper end periphery, and a flange of the middle cylinder. And a floor plate having a cylindrical portion that can be fixed by being inserted into the upper end of the middle cylindrical body, and an outlet disposed in the cylindrical portion of the floor plate. A plate lid which is detachably or openably attached to the upper opening of the cylindrical portion,
A male screw portion protruding around a cable introduction hole opened on the bottom surface of the middle cylindrical body, a female screw that can be screwed to this male screw portion, and a coupler having a conical slope formed inside, An elastic member disposed in a slope formed inside the coupler, wherein the middle cylindrical body is inserted into a through-hole opened in a section, and a flange formed on an upper peripheral edge thereof is formed in the through-hole. After pressing the cylindrical portion of the floor plate into the upper end of the middle cylinder, the flange covers the flange of the middle cylinder, and the coupler is connected to the male thread. An elastic member disposed inside the coupler is compressed by being screwed in, and a cable for connecting to an outlet disposed in a cylindrical portion of the floor plate is restrained, so that the compartment-penetrating floor connector is characterized in that it is configured. Cement. 2. A plurality of grooves are formed at predetermined intervals inside the upper end of the middle cylinder, and the grooves can be press-fit into the outer peripheral surface of the cylindrical portion of the floor plate. 2. The compartment according to claim 1, wherein a press-fitting auxiliary member made of synthetic resin or rubber is formed, and the floor plate is fixed by press-fitting the cylindrical portion of the floor plate into the upper end of the middle cylinder. Through floor outlet. 3. A plurality of grooves or projections are formed at predetermined intervals inside the upper end of the middle cylinder body, and the projections or grooves corresponding to the grooves or projections are formed in the cylinder of the floor plate. When the cylindrical portion of the floor plate is inserted into the upper end of the middle cylinder body, one of the grooves or protrusions engages with the other protrusion or groove, and is formed on the floor plate. 2. The floor penetrating section penetrating unit according to claim 1, wherein the floor socket is fixed. 4. A section-piercing floor outlet according to claim 1, wherein a fire protection material is filled around a cable passing through the middle cylinder.