TWI543486B - Floor wiring appliance - Google Patents

Description

Floor wiring device

The present invention relates to a wiring harness for a floor.

A floor wiring device is fastened to the floor. The floor system is placed on a floor under the floor, such as a floor. The wiring space is formed between the floor and the underfloor floor substrate (for example, refer to Japanese Laid-Open Patent Publication No. 2012-228097).

A typical floor wiring appliance includes: an AC power outlet; and an underfloor box that houses a plug that is connected to the socket. In a floor wiring appliance, a gap may be formed around the socket when the socket is fastened to the underfloor box portion or another component. When a plug is connected to the socket, one terminal of the plug may inadvertently insert the gap while the other terminal of the plug is inserted into the socket.

SUMMARY OF THE INVENTION One object of the present invention is to provide a wiring harness for a floor which prevents one terminal of a plug from being inserted into a socket and the other terminal of the plug not being inserted into the socket.

An embodiment of the present invention is a wiring device for a floor, comprising: a top plate; and a lower floor box portion, which cooperates with the top plate to clamp a fastening base and fastens the floor wiring device to The snap base. The underfloor box portion includes: a socket window portion exposing a socket fixed to the floor lower box portion; and a limiting protrusion portion located between the socket window portion and the top plate and facing the front of the socket window portion Protruding to prevent one terminal of a plug from being inserted into the socket while the other terminal of the plug is not inserted into the socket.

Preferably, the restricting projection protrudes away from the socket window.

Preferably, the underfloor box portion is cut and raised to form the restraining projection.

Preferably, the socket includes a front surface facing an obliquely upward direction through the socket window; the limiting protrusion is oblique with respect to the front surface of the socket, and the limiting protrusion comprises the socket window The end of the front and the top of the section.

Preferably, the socket includes a front surface and a socket hole disposed in the front surface for receiving the terminal of the plug; the limiting protrusion is above the socket hole when viewed from the front side of the socket; And when viewed from above the floor wiring harness, the limiting protrusions at least partially overlap the socket holes.

The wiring harness for a floor according to the present invention prevents one terminal of one plug from being inserted, and the other terminal of the plug is not inserted into the socket.

Other embodiments and advantages of the invention will be apparent from the description and appended claims.

10‧‧‧Floor wiring devices

11‧‧‧ top board

11a‧‧‧ jack

11b‧‧‧ screw hole

21‧‧‧Wiring appliance module

24‧‧‧ socket

24a‧‧‧ positive

24b‧‧‧Socket hole

25‧‧‧Metal snap joint

25a‧‧‧Socket window

25b‧‧‧ Appliance holding parts

25c‧‧‧ Abutment

25d‧‧‧拴 buckle

25e‧‧‧Restricted protrusions

25f‧‧‧拴 buckle

26‧‧‧ cable snap connector

26a‧‧‧ jack

27‧‧‧ screws

31‧‧‧ floor panels

32‧‧‧Frame

32a‧‧‧Outer Ring

32b‧‧‧ Inner Ring (opening ring)

32c‧‧‧Support

32d‧‧‧ jack

33‧‧‧ Cover

33a‧‧‧ cover

33b‧‧‧ slot

33c‧‧‧ cable insertion door

33d‧‧‧foot

33e‧‧‧ casing

35‧‧‧ screws

37‧‧‧ hinge

41‧‧‧Baffle

41a‧‧‧Central Pieces

41b‧‧‧ jack

41c‧‧‧screw

The invention, as well as the objects and advantages thereof, may be best understood by referring to the following description of the preferred embodiments, wherein: FIG. 1 is a perspective view showing an embodiment of a floor wiring appliance; Figure 2 is an exploded perspective view of the floor wiring device shown in Figure 1; Figure 3 is a plan view of the floor wiring device shown in Figure 1; Figure 4 is a side view of the floor wiring device shown in Figure 1; Front view of the AC power outlet and metal snap-in connector.

One embodiment of the floor wiring harness 10 will now be described with reference to Figs.

A floor wiring harness 10 is fastened to a floor which is configured to form a wiring space above the floor underfloor of a floor. The floor wiring harness 10 is constructed to be connected to a cable laid in the wiring space. The floor (floor material) may be referred to as a fastening base, and the floor wiring harness 10 is fastened to the fastening base.

As shown in FIGS. 1 and 2, the floor wiring device 10 includes a top plate 11, a wiring device module 21, and a floor panel 31. The floor wiring harness 10 may include a partition 41.

For example, the top plate 11 is stamped from a thin metal plate to have the shape of a quadrilateral frame. The corner of the top plate 11 includes a socket 11a. A screw 27 is inserted through each of the insertion holes 11a to snap the wiring harness module 21 to the top plate 11. Further, the top plate 11 includes a screw hole 11b adjacent to each of the insertion holes 11a. The screw 35 is screwed to the screw hole 11b to fix the floor panel 31 to the top panel 11.

The wiring harness module 21 includes a socket 24 for an AC power source, a metal snap joint 25 for the underfloor box portion, and a metal cable snap joint 26. For example, the outlet 24 is an AC 100V outlet. Further, the socket 24 has a front surface 24a including a socket hole 24b and a rear surface including a connection terminal. A socket module can be formed by more than one socket 24. The metal fastening joint 25 can be formed separately as an underfloor box portion or in cooperation with the partition plate 41 to form an underfloor box portion.

For example, the socket 24 is a large square boss type interchangeable wiring device as specified by the Japanese Industrial Standard (JIS). In the illustrated example, the socket 24 is a two pole grounded socket.

For example, the metal snap joint 25 is formed by stamping a metal plate. The metal snap joint 25 has an appliance holder 25b that includes a socket window portion 25a that exposes the front side 24a of the socket 24. The appliance holder 25b can be angled such that the front face 24a of each receptacle 24 faces in an upwardly sloping direction. The sloping front surface 24a of the socket 24 facilitates the insertion of the plug.

As shown in Fig. 2, an abutment piece 25c abutting against the lower surface of the plate protrudes from, for example, the intermediate portion of the upper edge of the appliance holder 25b.

As shown in FIGS. 2 and 5, the snap fastener piece 25d protrudes from both end portions of the upper edge of the appliance holder 25b in a direction opposite to the contact piece 25c. The restricting projection 25e protrudes from the upper edge of the appliance holder 25b in an obliquely upward direction (which is oblique with respect to the protruding direction (horizontal direction) of the snap piece 25d) at a position adjacent to the socket hole 24b. The contact protrusion 25e is in contact with a terminal of a plug (for example, a blade or a pin) to prevent the terminal from being inserted into the socket 24 and the other terminal of the plug being inserted into the socket 24. Each of the restricting protrusions 25e may be referred to as a plug terminal stopper.

For example, the restricting protrusion 25e protrudes away from the socket window portion 25a. In FIG. 5, when viewed from the front surface 24a of the socket 24, the restricting projection 25e is located above the socket hole 24b. Further, when viewed from above the floor wiring harness 10, the restricting projection 25e at least partially overlaps the corresponding socket hole 24b. The two corners of the ends of each of the restricting projections 25e may be rounded. In the illustrated example, each of the restricting projections 25e is a metal piece that is cut and raised from the metal snap joint 25.

The cymbal tab 25f protrudes from the lower edge of the appliance holder 25b to buckle the partition 41. The cymbal tab 25f protrudes in the same direction as the cymbal tab 25d.

The wiring tool module 21 and the top plate 11 are disposed on the opposite side of the floor to fix the wiring tool module 21 to the floor. For example, the screw 27 is inserted through the insertion hole 11a of the top plate 11 and is screwed to the screw hole of the fastening piece 25d to snap the top plate 11 to the wiring harness module 21. When the floor system is disposed between the top plate 11 and the wiring harness module 21, the screws 27 are tightened to firmly clamp and hold the floor between the top plate 11 and the abutting piece 25c. The wiring harness module 21 is thus fixed to the floor.

The cable snap joint 26 is screwed to the snap tab 25f of the metal snap joint 25. The trailing edge of the cable snap connector 26 includes a receptacle 26a. The jack 26a assists in the attachment of the cable tie to the cable snap joint 26. Cable ties are used to tie cables laid in the wiring space below the floor. The cable is connected to a connection terminal (not shown) in the back of the socket 24. The cable snap connector 26 reduces the tension applied from the cable to the connection terminals of the socket 24.

In the present embodiment, the partition 41 is coupled to the two metal snap joints 25. One of the metal snap joints 25 supports a wiring harness module 21 that includes a socket 24. Another metal snap joint 25 may support, for example, a photovoltaic socket. A photovoltaic socket can be a communication socket, such as a LAN cable socket or a telephone module socket.

The spacer 41 is formed by bending a metal plate into a substantially U-shaped configuration. The partition 41 has a center piece 41a which includes a socket 41b at a position corresponding to the screw hole of the snap piece 25f. The screw 41c is inserted through the insertion hole 41b and is screwed to the screw hole of the fastening piece 25f to buckle the partition 41 to the metal fastening joint 25. The partition 41 cooperates with the two metal snap joints 25 to form a receiving compartment (underfloor box portion) that houses a portion of the cable and/or joint that is connected to the wiring harness module 21 or the like.

As shown in FIGS. 1 to 4, the floor panel 31 includes a frame 32 and a cover 33. The frame 32 molded from aluminum is quadrangular and has four sides of substantially equal length. The frame 32 includes an outer ring 32a, and an inner ring, or split ring 32b, which defines a quadrangular opening Ld in the center of the frame 32 (see Figure 4). As shown in Fig. 4, the front surface of each of the sockets 24 is spaced apart from the split ring 32b and is disposed away from the opening Ld in the horizontal direction, that is, toward the right of the split ring 32b. In the plan view of the floor wiring harness 10, the frame 32 covers the socket 24.

The frame 32 includes a seat 32c that protrudes in an inner direction from at least a portion (e.g., three sides) of the split ring 32b. When the cover 33 is closed, a portion of the cover 33 is placed over the support 32c. The holder 32c includes a socket 32d at a position corresponding to the screw hole 11b of the top plate 11, and the screw 35 is inserted through the insertion hole 32d. The cover is supported by the hinges 37 and pivots about the frame 32. The hinge 37 includes a pivot parallel to the side of the split ring 32b that does not include the support 32c. The hinge 37 is provided at a position spaced apart from the socket 24 in the vertical direction (refer to the broken line of FIG. 4).

The cover 33 includes a cover 33a and a cable insertion door 33c. For example, the cover plate 33a is a quadrangular plate molded of aluminum. The cover plate 33a includes a slot 33b for inserting a cable (not shown) connected to the wiring harness module 21. The cable insertion door 33c is pivotally fastened to the cover plate 33a. The cable insertion door 33c of the closing groove 33b is an elongated quadrangular plate which is, for example, molded of aluminum. The plurality of legs (two in the present embodiment) protrude from the lower surface of the cable insertion door 33c in the lower direction. The sleeve 33e is held between the leg portions 33d to protect the cable (not shown) inserted through the slot 33b of the cover plate 33a when the cable insertion door 33c is opened.

The floor wiring harness 10 of the present embodiment includes a socket 24. This allows the user to use the socket 24 by opening the split ring 32b by the pivot cover 33. Each of the sockets 24 of the present embodiment is constructed to receive, for example, JIS C 8303 Category I and Category II plugs, that is, a two-pole ungrounded plug and a two-pole grounded plug. For example, when the user attempts to connect the two-pole ungrounded plug to the socket 24 in the dark, the contact of the protrusion with one terminal of the plug is restricted, and the one terminal of the plug is prevented from being inserted into the socket 24 and the other terminal is not inserted into the socket. twenty four.

This embodiment has the advantages described below.

(1) The floor wiring harness 10 includes a regulating protrusion 25e which is located above the socket hole 24b of the socket 24 and below the top plate 11. The restriction protrusion 25e prevents the plug one terminal from being inserted into the socket 24 and the other terminal not being inserted into the socket 24. In this configuration, the restricting projection 25e comes into contact with the other terminal of the plug before the terminal of the plug reaches the socket 24. Thus, at an early stage, this configuration prevents one terminal of the plug from being inserted into the socket 24 and the other terminal of the plug not being inserted into the socket 24.

(2) The restricting projection 25e protrudes away from the socket window portion 25a. Therefore, the restricting projection 25e does not obstruct the plug when the plug is properly connected to the socket 24.

(3) The restricting projection 25e is cut and raised from the metal fastening joint 25. This reduces the number of components.

(4) The front surface 24a of the socket 24 faces in an obliquely upward direction. This restricting projection 25e is oblique with respect to the front surface 24a of the socket 24. The end of the restricting projection 25e is fastened to the front and the top of the front surface 24a of the socket 24. This structure helps to insert the plug into the socket 24 and reduces errors in inserting the plug.

This embodiment can be modified as described below.

Preferably, each of the restricting projections 25e is cut and raised from the metal snap joint 25, and is integrally formed with the metal snap joint 25. Alternatively, for example, a limiting protruding element can be preformed and the limiting protruding element can be welded and integrated with the metal snap joint 25.

Preferably, the restricting projection 25e protrudes away from the socket window portion 25a. However, the restricting protrusion 25e may protrude vertically or parallel to the front surface 24a of the socket 24.

The two corners of the ends of each of the restricting projections 25e need not be rounded and may be chamfered. Alternatively, the isosceles can be trimmed to an acute angle.

Instead of or in addition to the one or more AC power outlets, the wiring appliance module 21 can include more than one weak electrical outlet. An optical socket can be one Communication socket, such as a LAN cable outlet or a telephone module socket. In this case, the same advantages as the above embodiment will be obtained.

The partition 41 can be part of the metal snap joint 25.

The above description is illustrative and not restrictive. For example, the above examples (or one or more embodiments thereof) can be used in combination with one another. Other embodiments may be used, for example, by those skilled in the art after reviewing the above description. Also, in the above description, various features may be combined to simplify the disclosure. This should not be construed as an unapplied disclosure feature that is indispensable for any patent application. Rather, the inventive subject matter may have less than all of the technical features of the specific disclosed embodiments. The scope of the invention should be determined with reference to the scope of the appended claims and all equivalents thereof.

10‧‧‧Floor wiring devices

11‧‧‧ top board

11a‧‧‧ jack

11b‧‧‧ screw hole

21‧‧‧Wiring appliance module

24‧‧‧ socket

24a‧‧‧ positive

25‧‧‧Metal snap joint

25a‧‧‧Socket window

25b‧‧‧ Appliance holding parts

25c‧‧‧ Abutment

25d‧‧‧拴 buckle

25e‧‧‧Restricted protrusions

25f‧‧‧拴 buckle

26‧‧‧ cable snap connector

26a‧‧‧ jack

27‧‧‧ screws

31‧‧‧ floor panels

32a‧‧‧Outer Ring

32b‧‧‧ Inner Ring (opening ring)

32c‧‧‧Support

32d‧‧‧ jack

33‧‧‧ Cover

33a‧‧‧ cover

33c‧‧‧ cable insertion door

33d‧‧‧foot

33e‧‧‧ casing

35‧‧‧ screws

37‧‧‧ hinge

41‧‧‧Baffle

41a‧‧‧Central Pieces

41b‧‧‧ jack

41c‧‧‧screw

Claims (5)

A wiring device for a floor, comprising: a top plate; and a lower floor box portion, which cooperates with the top plate to clamp a fastening base and fastens the floor wiring device to the fastening base, wherein the underfloor case includes : a socket window portion exposing a socket fixed to the floor lower box portion, and a limiting protrusion portion located between the socket window portion and the top plate and protruding toward the front of the socket window portion to avoid a plug One terminal of the plug is inserted into the socket while the other terminal of the plug is not inserted into the socket. The floor wiring device of claim 1, wherein the restricting protrusion protrudes away from the socket window. A floor wiring device according to claim 1 or 2, wherein the underfloor box portion is cut and raised to form the restricting protrusion. The floor wiring device of claim 1, wherein the socket includes a front surface facing an obliquely upward direction through the socket window, and the limiting protrusion is oblique with respect to the front surface of the socket And the limiting protrusion includes an end located in front of and above the socket window. The floor wiring device of claim 1, wherein the socket comprises a front surface and a socket hole disposed in the front surface for receiving a terminal of the plug, the limiting protrusion when viewed from the front side of the socket The portion is above the socket apertures and, when viewed from above the floor wiring fixture, the restriction projections at least partially overlap the socket apertures.