JPH0541333U - Floor outlet mounting structure - Google Patents

Abstract

(57) [Abstract] [Purpose] The tubular portion of the floor outlet is pulled downward by the downward urging force of the coil spring provided in the floor side member, and the flange portion of the floor outlet is evenly contacted with the floor surface. In the installation structure of the floor outlet designed to do so, the cable of the outlet is prevented from entering between the coil spring rolls. [Structure] Protective covers 27, 28 are attached to the lower surface of the cover plate 7 and the outer peripheral edge of the elevating ring 10 so as to cover the outside of the coil spring 9, respectively, so that their front end surfaces do not contact each other.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement in a floor outlet mounting structure including a tubular portion provided on the floor surface of a building such as an office and provided with an outlet at least inside thereof, and a brim portion abutting against the floor surface. ..

[0002]

[Prior Art]

 As office automation equipment such as computers, word processors, facsimiles, and copiers has increased in offices, floor concentrators for supplying power to these office automation equipments are often installed on the floor of offices and other buildings. It has become to. Most of the attachment means for floor outlets so far have formed female threads on the inner peripheral surface of the floor-side member disposed under the floor of the office, etc., and male threads on the outer peripheral surface of the cylindrical portion of the floor outlet. It was formed, and the cylindrical part of the floor outlet was screwed into the female screw inside the floor side member and fixed. Also, when the floor-side member placed under the floor is not parallel to the floor surface, the flange-shaped part of the floor outlet will not evenly contact the floor surface, so in the past, a horizontal adjustment ring was provided inside the floor-side member. I was adjusting my lance.

As described above, most of the conventional floor outlet mounting structures have a structure in which the tubular portion of the floor outlet is screwed and fixed in the floor member. Therefore, the rotation operation of the floor outlet is troublesome at the time of installation, and especially the number of pitches of the male screw formed on the outer peripheral surface of the tubular portion of the floor outlet is considerably narrow, so the number of rotations is extremely large and the number of rotations in the field is high. There was a problem that the installation work was troublesome, and the screw structure gradually loosened over the years of use. In addition, since the tubular part of the floor outlet is screwed into the floor-side member, it can be pre-connected to the power supply line under the floor in the middle cylinder inside the floor outlet. However, there is a problem that the wiring work after screwing is more complicated. Further, in order to adjust the horizontal balance, as described above, the horizontal adjustment ring has conventionally been provided in the floor member, but this also may not be able to maintain the balance, so the floor outlet flange In some cases, a slight gap may occur between the floor and the floor.

The present inventors have proposed a floor article mounting structure disclosed in Japanese Utility Model Laid-Open No. 2-139415 in order to solve the problems associated with the conventional mounting structure. In the case of this floor article mounting structure, the tubular portion forming the floor outlet is forcibly pulled downward by the coil spring attached to the floor-side member, and this tensile force causes the flange portion of the floor outlet to Since it abuts on the floor surface evenly, the above-mentioned conventional problems can be solved.

[0005]

[Problems to be solved by the device]

 As described above, according to the floor article mounting structure disclosed in Japanese Utility Model Laid-Open No. 2-139415 proposed by the present inventors, the floor outlet can be mounted in the floor side member with one touch, and the preliminary Since the power supply line under the floor and the cable of the outlet can be connected in advance, the installation workability was dramatically improved. However, on the other hand, even if such a groundbreaking effect is exhibited, when the floor outlet mounting structure is used, when the floor outlet cables enter the coil spring windings and compress the coil spring, However, it was found that a new problem would occur in that it would be sandwiched between the windings and the coating of the cables would peel off.

Therefore, as a result of further study by the present inventors to solve these drawbacks, the tip end surfaces of the lifting ring forming the floor member and the lower surface of the lid plate contact each other. In order to prevent this from happening, it is possible to prevent accidents such as the cable of the floor outlet entering between the windings of the coil spring and preventing accidents such as damage to the coating of the cables, if a protective cover is attached. It has arrived. Therefore, the present invention pulls the tubular portion of the floor outlet downward by the downward urging force of the coil spring provided in the floor member so that the flange portion of the floor outlet is evenly contacted with the floor surface. It is an object of the present invention to provide a floor outlet mounting structure that prevents the cables of the outlet from entering between the coil spring windings.

[0007]

[Means for Solving the Problems]

 The structure of the present invention for achieving the above-mentioned object will be described in detail. A floor outlet having a tubular portion in which an outlet is arranged, and a collar portion that abuts on a floor surface, and this floor outlet. And a floor-side member that is fixed in a mounting hole formed on the floor to receive the cylindrical portion of the floor-side member, and a coil spring that is biased downward in the floor is attached to the floor-side member. The downward elasticity of the floor outlet forcibly pulls the tubular portion of the floor outlet downward, and the tensile force causes the flange portion of the floor outlet to evenly contact the floor surface. In the mounting structure, the cables of the outlet are inserted between the coil wire of the coil spring mounted between the cover plate forming the floor side member and the spring receiving groove provided in the lifting ring. To prevent the outer peripheral edge of the lower surface and the lifting ring of the cover plate, a floor outlet attachment structure, characterized in that the above end faces is provided with a protective cover of the cable so as not to contact with each other.

[0008]

【Example】

 Hereinafter, a specific configuration of the floor outlet mounting structure of the present invention will be described in detail with reference to the illustrated embodiment. 1 is an exploded perspective view of a floor outlet and floor side members used in the floor outlet mounting structure of the present invention, FIG. 2 is a sectional view showing an embodiment of the floor outlet mounting structure of the present invention, and FIG. 3 is a floor side member. It is a top view of a lifting ring.

Reference numeral 1 in the drawing comprises at least a collar-shaped portion 2 that is brought into contact with the floor surface around the periphery of a mounting hole formed in the floor surface, and a tubular portion 3 that is connected to the lower portion of the collar-shaped portion 2. A floor outlet is shown, and in the tubular portion 3, for example, an intermediate tubular body in which an outlet that can be moved up and down by a spring is arranged is housed. Since the floor outlet itself, which is made to project upward by a spring, has been publicly known, the details of the middle cylinder body in which the outlet is provided are omitted. Reference numeral 4 denotes an engaging member which is laterally projected at a position shifted by 180 degrees near the lower end of the cylindrical portion 3 of the floor outlet 1. As will be described later, the engaging elements 4 and 4 play an important function when the floor condenser 1 is inserted into the floor side member.

Next, reference numeral 5 denotes an entire floor-side member that is disposed under the floor in a building such as an office. The floor-side member 5 is a casing 6 whose upper surface is an opening, and an upper face of the casing 6. A lid plate 7 to be fixed, two guide posts 8 protruding vertically from the lower face of the lid plate 7, a coil spring 9 having a large diameter, and an elevating ring 10 having a spring receiving groove for receiving the coil spring 9. A control ring 11 is rotatably mounted in the lifting ring 10.

First, the casing 6 has a well-known structure in which a vertical wall 13 is erected around a bottom plate 12 having a rectangular or rectangular shape. The vertical wall 13 is provided with knockout holes as appropriate. Mounting pieces 14 for fixing the lid plate 7 are provided on the upper portion of the hanging wall 13 so as to project near the corners. The lid plate 7 is fixed to the upper opening of the housing 6, and is fixed to the mounting piece 14 of the housing 6 with a screw 15. As shown in FIG. 1, a large-diameter hole 16 having a size that allows the tubular portion 3 of the floor outlet 1 to be loosely inserted is provided at the center of the lid plate 7, and the tubular portion 3 is provided near the lower end thereof. Notches 17 and 17 are provided in the peripheral portion of the large-diameter hole 16 for passing the protruding engaging members 4 and 4. Further, on the lower surface of the cover plate 7, a protective cover 27 is formed in an annular shape so as to project outside the guide posts 8, 8. The protective cover 27 cooperates with a protective cover 28 provided on the outer peripheral edge of the elevating ring 10, which will be described later, to prevent the cables 29 of the floor outlet 1 from entering between the windings of the coil spring 9.

The guide post 8 is fixed to the lower surface of the cover plate 7 with a screw 18 or the like so as to hang down. In the illustrated embodiment, the two guide posts 8 and 8 are hung down by shifting the position by 180 degrees. I am allowed to do it. In addition, small diameter portions 19 and 19 are formed on the upper portions of the guide posts 8 and 8. Further, stoppers 33, 33 are detachably attached to the lower ends of the guide posts 8, 8 by screws. The coil spring 9 has a large diameter so that the outer peripheral portions of the guide posts 8, 8 protruding from the lower surface of the cover plate 7 can be wound, and preferably the diameter of the upper winding line portion 32 is larger than that of the lower winding line portion 31. It is better that it is formed larger. Although the upper coil wire portion 32 of the coil spring 9 is brought into contact with the lower surface of the cover plate 7, the protective cover 27 is provided outside the contact position of the upper coil wire portion 32. Needless to say.

Next, the elevating ring 10 is provided with a spring receiving groove 20 for receiving the lower winding line portion 31 of the coil spring 9 on the outer peripheral portion on the upper surface side, and the spring receiving groove 20 is formed. The outer peripheral edge portion of the protective cover 28 extends upward to form a protective cover 28. The tip end surface of the protective cover 28 formed on the outer peripheral edge of the lifting ring 10 and the tip end surface of the annular protective cover 27 projecting from the lower surface of the cover plate 7 should be displaced so as not to contact each other. (Fig. 2). In the illustrated embodiment, the protective cover 27 projecting from the lower surface of the cover plate 7 is located outside the protective cover 28 formed on the elevating ring 10 so that the tip surfaces of both do not collide. Of course, this may be arranged opposite to the illustrated embodiment, that is, the protective cover 27 may be arranged inside the protective cover 28. Further, through holes 21 and 21 for inserting the above-mentioned two guide posts 8 and 8 are formed on the upper surface of the elevating ring 10, and the cylindrical shape of the floor console 1 is formed on the inner peripheral edge portion. Notches 22 and 22 corresponding to the engaging members 4 and 4 protruding from the portion 3 are formed. A protrusion 23 for rotatably holding a control ring 11, which will be described later, is formed on the rear surface side of the elevating ring 10.

Next, the control ring 11 is held by projecting pieces 23 formed on the back surface side of the elevating ring 10 at appropriate intervals so that the control ring 11 can rotate within a certain range along the circumferential direction of the elevating ring 10. Notches 24, 24 are formed on the outer peripheral edge portion for restricting the lifting operation of the lifting ring 10. A relatively large notch 25, 25 is formed in a curved shape at one end of each of the notches 24, 24. The guide post 8, 8 is formed at the larger notch 25, 25. When it is positioned, the control ring 11 can be moved up and down along with the elevating ring 10 along the guide posts 8 and 8, but the small diameter portions 19 and 19 formed on the guide posts 8 and 8 have a small width. When the cutouts 24, 24 are located, the cutouts 24, 24 are engaged with the small-diameter portions 19, 19 and are locked together with the lifting ring 10 so that vertical sliding is impossible. It will be. Therefore, it goes without saying that the wall thickness of the control ring 11 is somewhat thinner than the height of the small diameter portions 19, 19 formed on the guide posts 8, 8. Further, both sides of the control ring 11 are cut and raised on the surface side of the control ring 11 in order to forcibly rotate the control ring 11 by means of the engaging elements 4 and 4 which are provided on the lower end of the tubular portion 3 of the floor outlet 1 and which project sideways. The engaging portions 26, 26 are formed so as to project upward.

The floor outlet of the present invention is constructed as described above, and the housing 6 forming the floor side member 5 is preliminarily attached at a position (underfloor) below a mounting hole provided on the floor surface 30. A coil spring 9 is elastically mounted between a cover plate 7 fixed to the upper surface of the housing 6 and a groove receiving groove 20 provided in the lifting ring 10. Needless to say, the guide posts 8 and 8 fixed to the lower surface of the cover plate 7 penetrate through the through holes 21 and 21 formed in the elevating ring 10. Since the coil spring 9 has the fixed side on the cover plate 7 side in this way, it has a biasing force directed downward (under the floor), but at the stage before the floor outlet 1 is inserted and installed, With the small-diameter portions 19 and 19 formed in 8 and 8 engaged with the narrow cutout portions 24 and 24 of the control ring 11, the downward biasing force of the coil spring 9 is compressed. Has become. In this state, the engaging portions 26, 26 formed on the surface side of the control ring 11 have the notches 22, 22 formed in the elevating ring 10 and the notch 17 formed in the cover plate 7. It is in a state that coincides with 17

Next, when inserting the floor outlet 1 into the floor-side member 5, the flange portion 2 of the floor outlet 1 is grasped and laterally projected near the lower end of the tubular portion 3. When the mating elements 4, 4 are fitted into the engaging portions 26, 26 provided in the control ring 11 and the floor outlet 1 is slightly rotated, for example, in the clockwise direction, the control ring 11 is located on the rear surface side of the lifting ring 10. The small-width cutouts 24, 24 that are turned by engaging with each other and serve as the engaging portions are separated from the small-diameter portions 19, 19 of the guide posts 8, 8 and are cut into a relatively large cutout 25 in a curved shape. , 25, the engagement state is released, and the elevating ring 10 instantly descends below the floor along the guide posts 8 and 8 by the elastic force of the compressed coil spring 9. At this time, since the engaging elements 4 and 4 projecting from the tubular portion 3 of the floor receptacle 1 are engaged with the step portion on the back surface of the elevating ring 10, the tubular portion of the floor outlet 1 is engaged. 3 as well as the lifting ring 10 is forcibly pulled in the underfloor direction by the resilience of the coil spring 9, and the upper collar-shaped portion 2 abuts the floor surface 30 uniformly, so that the resilience of the coil spring 9 is The restricted state is reached, and the insertion of the floor outlet 1 is completed.

After the insertion, the floor outlet 1 is pulled upward against the resilience of the coil spring 9 and slightly rotated counterclockwise, so that the protrusion provided on the tubular portion 3 is protruded. The mating members 4 and 4 rotate the control ring 11 in the counterclockwise direction, and the narrow cutout portions 24 and 24 of the control ring 11 are engaged with the small diameter portions 19 and 19 of the guide posts 8 and 8. The outlet 1 can be taken out from the floor member 5. During this series of operations, the protective covers 27 and 28 are provided on the lower surface of the lid plate 7 and the outer peripheral edge of the lifting ring 10, respectively, so that the cables 29 extending from the lower end of the floor outlet 9 can be prevented. It is possible to prevent the coil spring 9 from entering between the winding lines.

[0018]

[Effect of the device]

 As described above, according to the present invention, the tubular portion of the floor outlet is pulled downward by the downward biasing force of the coil spring provided in the floor member so that the flange portion is evenly contacted with the floor surface. Type floor outlets have protective covers attached to the lower surface of the lid plate and the outer peripheral edge of the lifting ring to cover the outside of the coil springs. It is possible to prevent the cables from getting in between the wires, and conventionally, the cables got caught between the windings, and the cables were caught between the windings due to the compression of the coil spring when the floor outlet was pulled out from the floor side member. However, according to the present invention, such conventional problems can be solved.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a floor outlet and a floor side member used in a floor outlet mounting structure of the present invention.

FIG. 2 is a sectional view showing an embodiment of a floor outlet mounting structure of the present invention.

FIG. 3 is a plan view of a lifting ring that forms a floor member.

[Explanation of symbols]

 1: Floor outlet 2: Collar portion 3: Cylindrical portion 4: Engagement member 5: Floor side member 6: Housing 7: Lid plate 8: Guide post 9: Coil spring 10: Lifting ring 11: Control ring 12: Bottom plate 13: Vertical wall 14: Mounting piece 15: Screw 16: Large diameter hole 17: Notch 18: Screw 19: Small diameter 20: Spring receiving groove 21: Through hole 22: Notch 23: Projection 24: Notch 25: Notch 26: Engagement 27: Protective cover 28: Protective cover 29: Cable 30: Floor surface 31: Lower winding line portion 32: Upper winding line portion 33: Stopper

Claims (1)

[Scope of utility model registration request] 1. A cylindrical portion having an outlet provided therein,
In the floor-side member, there is provided a floor outlet having a collar-shaped portion to be brought into contact with the floor surface, and a floor-side member fixed in a mounting hole formed in the floor to receive the tubular portion of the floor outlet. , A coil spring biased under the floor is attached, and the downward elastic force of the coil spring forcibly pulls the tubular part of the floor outlet in the underfloor direction. In a floor outlet mounting structure in which parts are evenly contacted with the floor surface, the coil spring winding line mounted between the cover plate forming the floor member and the spring receiving groove provided in the lifting ring In order to prevent the cables of the outlet from entering between them, make sure that the lower end of the cover plate and the outer peripheral edge of the lift ring are not in contact with each other at their tip surfaces. Floor outlet mounting structure characterized in that a protective cover of the cable such.