JPH04244718A - Structure of connector for access floor - Google Patents

Abstract

PURPOSE:To reduce the bent amount of electric wires so as to prevent the discontinuity of the wires by providing the supporting position of a rotating shaft when the connecting section of the main body block of a connector for access floor is concealed in a main body and comes out to the surface of an access floor between the upper and lower surfaces of a base block. CONSTITUTION:A main body block MB 9 is put in a recessed section which has nearly the same longitudinal, transversal, and vertical dimensions as those of one unit which constitutes an access floor with a plurality of pieces and is formed at the center of a base block. The MB 9 is formed of an exposed section 91 which is provided with a connector 90 on the bottom and formed on the surface of a floor, frame section 12 fitted with connectors 90, connecting section 98 composed of a push-up section 13, etc., and plate section 92 housed in the BB. A connecting state is set by pushing up the section 13 in the direction shown by the arrow C around a shaft 15 by means of a spring 16 and arm 14 so as to bring the connector 90 to the surface of a floor. The shaft 15 which becomes the center of the rotation when the section 13 is pushed up is provided between the upper and lower surfaces of the BB. Therefore, the bent amount of electric wires 17 can be reduced and the discontinuity of the wires 17 caused by repeated opening and closing can be prevented.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the structure of a connector that is exposed on the surface of an access floor only when necessary and housed within the access floor when unnecessary.

0002

2. Description of the Related Art As shown in FIGS. 1 to 6, a conventional access floor connector 3 has a plate portion 4 and a plate portion 4 which is connected to the plate portion 4 so that a connecting surface 5 is exposed from the surface of an access floor 80 when necessary. The connecting portion 7 is rotatably mounted on a shaft 6 supported by the plate portion 4, and a relay connector fixed to the plate portion 4. When constructing this access floor connector 3, insert the main body 3' of the connector 3 into the round hole 2 at the center of the base plate 1, and rotate the mounting screws 41, 41 to tighten the nut 51. , 51, and then tighten the mounting arm 6.
1 and 61 in the horizontal direction, and the plate portion 4 of the connector 3
The upper surface 1 of the base plate 1 is connected to the lower surface 4' of the base plate 1 and the mounting arms 61, 61.
It has a structure in which it is installed by sandwiching it. Reference numeral 71 denotes an electric wire that electrically connects the connector of the connection part and the relay connector.

In this conventional example, since the plane of the plate portion 4 is circular, the opening 42 through which the connecting surface 5 emerges and retracts also has an area smaller than this circle. Therefore, the rotation angle of the connecting portion 7 is increased so that the connecting surface 5 is exposed to the surface of the access floor 80. When a plurality of connection points are provided on the connection surface 5, the connection points are arranged above and below, and the rotation angle is further increased so that the plurality of connection points are completely exposed to the surface of the access floor 80. ing. In this way, since the connection part of this access floor connector has a large rotation angle, this connection part and the relay connector 9
If the electric wire 71 that connects the electric wire 7 with the electric wire 7 has a large bend and is used frequently, there is a risk that the electric wire 71 may be cut.

0004

[Problems to be Solved by the Invention] The problem to be solved is that, in connection devices for access floors, the electric wires connected to the relay connection devices are bent due to the repeated protrusion and retraction of the connection portions on the surface of the access floor. This is the point where it is cut.

[0005]

[Means for Solving the Problems] The present invention provides a base block having approximately the same length, width, and height dimensions as one unit of the block of the access floor, and a recessed portion of the base block exposed on the surface of the access floor. It consists of a main body block that fits into the recess of the base block to approximately the same height as the base block, except for the exposed part, and the main body block has a plate part and a surface of the main block. a connecting portion that allows the connecting surface to be retracted and retracted, and the exposed surface of the connecting portion is the exposed surface of the access floor surface of the main body block when the connecting surface is sunk into the main body block. The lower surface of this connecting portion is approximately flush with the lower surface of the base block, and the shaft support position of this connecting portion is located between the upper and lower surfaces of the base block. It is something.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 8 to 23 are views of an embodiment of the present invention, in which 8 is a base block and 9 is a main body block of a connector for an access floor. The base block 8 is shown in FIG.
It has approximately the same length, width, and height dimensions as the units 80', 80', . . . of one block 80 of the access floor shown in FIG. A recess 81 is provided in the center of the base block 8 so that the portion of the main body block 9 of the access floor connector other than the exposed portion 91 exposed on the surface of the access floor is accommodated in the base block 8. . The upper surface 93 of the plate portion 92 of the main body block 9
A stepped portion 83 is provided so as to be flush with the upper surface 82 of the. A guide protrusion 94 provided on the back surface of the plate portion 92 of the main body block 9 is fitted into this stepped portion 83, and the main body block 9
A guide groove 84 in which the main body block 9 is guided when the main body block 9 is moved in the P direction, a positioning hole 85 into which a positioning protrusion 95 provided on the back surface of the main body block 9 fits, and a mounting screw 96 of the main body block 9 into which the mounting screw 96 is screwed. Screw holes 86, 86 are provided.

Guide projections 94 provided on the main body block 9
and the guide groove 84 provided in the base block 8 constitute a guide means. It goes without saying that the guide protrusion 94 and the guide groove 84 may be provided in the main block 9 and the base block 8 in reverse order. Note that grooves 84', 84' having a width wider than the width of these grooves are provided at the ends of the guide grooves 84, 84, so that the guide protrusions 94, 94 can easily fit into the guide grooves 84, 84. . 87
is an insulating plate that covers the terminal portions of the relay connectors 97, 97 attached to the back surface of the plate portion 92 of the main body block 9;
Reference numeral 88 denotes a partition wall for insulating the electric wires from the commercial power supply relay connector 97 and the electric wires from the telephone and data lines.

The main body block 9 includes a plate portion 92, a connecting portion 98 that is removable from a surface 91' of the main body block 9 in order to expose the connector 90 to the surface of the access floor; It consists of a locking part 99 that locks the connecting part 98 from coming out upward from the main body block, relay connectors 97, 97 fixed to the back surface 93 of the plate part 92, and a wire holding part 10. Note that the plate portion 92 extends to a position that coincides with the end of the base block. The concave portion 81 of the base block 8 is completely covered by the plate portion,
There is no opening in the upper surface of the base block.

The connecting portion 98 of the main body block 9 has a frame portion 12 to which an outlet 90, a telephone connector 90', etc., which are standard items for indoor wiring equipment, are attached, and a frame portion 12 that is attached to the surface of the access floor 80. It consists of a push-up part 13 for exposing. An arm 14 extending rearward from the push-up part 13 is pivotally supported by a shaft 15 provided on the back surface of the plate part 92. Then, the push-up portion 13 is pushed up by the elastic spring 16.

The frame portion 12 has an exposed surface 121 that is exposed to the surface of the access flow 80 when the connectors 90, 90' etc. are housed in the main body, and an exposed surface 121 located approximately at right angles to this exposed surface 121. Then, the boss portion 9 of the connector 90, 90' etc.
a connecting surface 123 with openings 122, 122 exposing the connectors 90, 901'; and a pressing screw 124 for pressing and fixing the connector 90, 90' against the connecting surface 123;
124, and fixing parts 125, 125 to which the pressing screws 124, 124 are attached.

[0011] Note that the openings 122, 122 of the frame portion 12
The dimensions are such that the boss part of a commercially available indoor wiring device for residential use can be attached. Since these dimensions generally comply with Japanese Industrial Standards and industry standards, it is possible to mount various indoor wiring devices.

[0012] The push-up portion 13 is connected to the connectors 90, 90.
A frame fixing part 131 to which the frame part 12 with the attached frame part 12 is attached using mounting screws 132, 132, an arm 14 extending rearward from this frame fixing part 131, and a shaft 15 passing through a hole 141 at the tip of this arm 14, Wrapped around this shaft 15, one end 15
1 is brought into contact with the back surface of the plate portion 12 of the main body block 9, and the other end 152 is brought into contact with the groove 142 provided at the base of the arm 14. Reference numeral 17 denotes an electric wire that connects the connectors 90, 90' and the relay connector 97.

The lock portion 99 has a push button 991 and a push button 9.
It consists of a spring 993 for retracting the locking piece 992 so that the connecting portion 98 is unlocked by pressing down 91, a return spring 994, and a cover 995.

As shown in FIG. 20, the construction sequence is as follows: One unit 80' of the access floor block 80 is removed, and a carpet 801 is pasted on the surface of the portion of the access floor block 80 from which the unit has been removed. is cut out to expose the exposed portion 91 of the main body block 9 (802), and a hole 803 is made. Next, as shown in FIGS. 21 and 22, the electric wires 18 and 18 are pulled out from this hole 803, and
The electric wires 18, 18 are connected to relay connectors 97, 97 attached to the back surface of the plate portion 92 of the main body block 91.

Further, the base block 8 is placed in the position where one unit of the access floor block 80 has been removed, and the plate portion 92 of the main body block 9 is inserted through the hole 803. The guide protrusions 94, 94 provided on the back surface 93 of the base block 8 are fitted into the guide grooves 84, 84 provided on the stepped portion 83 of the base block 8, and pushed in the P direction (as shown in FIG. 8). Positioning protrusions 95, 95 provided on the back surface fit into positioning holes 85, 85 provided in step 83 of base block 8, and are completely positioned. Then, as shown in FIG. 23, the mounting screws 96, 96 engaged with the main body block 9 are screwed into the screw holes 86, 86 provided in the base block 8 and fixed.

In this way, when the push button 991 of the lock part is pressed down, the lock lever 992 retreats and comes out of the recess 996 of the connecting part 98, so that the connecting part 98 is rotated upward by the elastic spring 16 about the shaft 15. Then, the connecting surface 123 is exposed above the surface of the access floor, and the locking surface 134 of the push-up part 13 comes into contact with the back surface 135 of the surface 91' of the main block and stops. The shaft support position of the connection part is such that the arm 14 is extended backward from the push-up part 13 of the connection part, and the shaft 15 is connected to the plate part 9.
Since the vertical width dimension of the exposed surface 123 (same as the vertical dimension of the base block) is shorter than the dimension from this connecting surface 123 to the shaft support position, the shaft 1
The rotation angle of the connection part about 5 is small.

As explained above, according to the present invention, the base block 8 has substantially the same length, width, and height dimensions as one unit 80' of the access floor block 80, and this base
The recess 81 of the base block 8 except for the exposed portion 91 exposed to the surface of the access floor.
1 and a main body block 9 that fits into the base block 8 to approximately the same height dimension.

The main body block 9 includes a plate portion 92,
A connecting portion 9 that can protrude and retract from the surface of this main body block 9
8, and this connecting portion 98 has an exposed surface of the connecting portion that is substantially flush with the exposed surface of the main body block to the access floor surface when the connecting surface 123 is sunk into the main body block 9, The lower surface of this connecting portion is approximately flush with the bottom surface of the base block, and the pivot position of this connecting portion is located between the upper and lower surfaces of the base block, so that the vertical direction of the connecting portion is Since the dimension (same as the vertical dimension of the base block) is smaller than the dimension from the connecting surface 123 to the shaft 15, the rotation angle of the connecting portion 98 is small and the degree to which the electric wire 17 is bent is small.

Further, the connecting portion is located between the upper and lower parts of the base block, and a relay connector 97 connected to the connector of this connecting part by the electric wire 17 is also located between the upper and lower parts of the base block. Therefore, when the connecting surface 123 of the connecting portion is sunk into the main body block 9, the electric wire 17 is stretched almost horizontally,
Even if the connection surface of the connection part is exposed to the surface of the access floor, the rotation angle of the connection part is small, so the degree of bending of the electric wire connecting the connection part and the relay connector is less than that of the conventional example. Therefore, the structure is such that there is very little risk of the electric wire 17 being cut due to the repeated coming and going of the connecting portion.

Furthermore, the plate portion 9 of the main body block 9
2 is extended to a position that coincides with the edge of the base block, and is covered with the main block so that there is no opening at all on the top surface of the base block, so even if a load is applied from the top surface of the access floor, it will not dent. Nothing happens.

[0021]

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an attached state of a conventional example of the present invention.

FIG. 2 is a perspective view of a base plate to which the conventional access floor connector shown in FIG. 1 is attached.

FIG. 3 is a front view of the conventional access floor connector shown in FIG. 1;

FIG. 4 is a right side view of the conventional access floor connector shown in FIG. 1;

FIG. 5 is a plan view of the conventional access floor connector shown in FIG. 1;

FIG. 6 is a partial cross-sectional view of the conventional access floor connector shown in FIG. 1;

FIG. 7 is a perspective view of an access floor block.

FIG. 8 is an exploded perspective view showing a positional embodiment of the present invention.

FIG. 9 is a front view of the main body block of the present invention.

FIG. 10 is a back view of the main body block of the present invention.

FIG. 11 is a left side view of the main body block of the present invention.

FIG. 12 is a plan view of the main body block of the present invention attached to the base block.

FIG. 13 is a s-tuv cross-sectional view of FIG. 12;

14 is a cross-sectional view showing a state in which the lock is released in the s-t-u-v cross-sectional view of FIG. 12; FIG.

FIG. 15 is a cross-sectional view taken along line w-x in FIG. 12;

16 is a partially enlarged view of section A shown in FIG. 13. FIG.

FIG. 17 is a perspective view of the frame of the main body block of the present invention.

FIG. 18 is a bottom view of a state in which a connector is attached to the frame of the main body block of the present invention.

FIG. 19 is a perspective view of the push-up portion of the main body block of the present invention.

FIG. 20 is an explanatory diagram illustrating the mounting order.

FIG. 21 is an explanatory diagram illustrating the mounting order.

FIG. 22 is an explanatory diagram illustrating the mounting order.

FIG. 23 is an explanatory diagram illustrating the mounting order.

[Explanation of symbols]

8 Base block 80 Access floor block 80' One unit of access floor block 81
Recessed portion 82 provided in the base block 83 Upper surface of the base block 83 Stepped portion 84 of the base block Guide groove 85 provided in the base block
Positioning hole 86 provided in the base block
Mounting screw holes 87 provided in the block Insulating plate 88 Partition wall 9 Main block 90 Connector 91 Exposed part of main block to the access floor surface 92 Plate part 94 of main block
Guide protrusion 95 provided on the back surface of the plate portion of the main body block Positioning protrusion 96 provided on the back surface of the plate portion of the main body block Main body block mounting screw 97 Relay connector 98 Connection portion 99 Lock portion 12 Frame portion 122 Opening 13 Push-up portion 14 Arm

Claims (2)

[Claims] 1. A base block having approximately the same vertical, horizontal, and height dimensions as one unit of the access floor block, and a base block in a recessed portion of the base block except for the portion exposed on the surface of the access floor. The main body block is fitted to approximately the same height as the main block, and the main body block includes at least a plate portion and a connecting portion whose connecting surface is retractable from the surface of the main body block. When the connection surface is sunk into the main body block,
The exposed surface of this connecting portion is approximately the same as the exposed surface of the main block to the access floor surface, the lower surface of this connecting portion is approximately the same as the bottom surface of the base block, and the pivot position of this connecting portion is A structure of an access floor connector, characterized in that the connector is located between the upper and lower surfaces of the base block. 2. A portion of the main body block exposed to the surface of the access floor is located at an end of the main body block, and a plate portion is moved from the portion of the main body block exposed to the surface of the access floor to the base block. 2. The structure of the access floor connector according to claim 1, wherein the relay connector is extended to a position that coincides with the end thereof, covers the opening 81, and is fixed to the back surface of the plate portion.