JPH0526710Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field] The invention consists of placing a film-like heater on a base material, placing a heat equalizing plate made of a metal plate on the top surface of the heater, and placing a surface layer on the top surface of the heat equalizing plate. The present invention relates to the structure of the mounting part of the ground wire of an electric heating floor in which the ground wire is led out from the back side of the heat equalizing plate, and more specifically, it relates to a technique for preventing the surface material from being dented at the point where the ground wire is led out.

[Background Art] Conventionally, as shown in FIG. 2, a film-shaped heater 2 is arranged on a base material 1, a heat equalizing plate 3 made of a metal plate is arranged on the upper surface of the heater 2, and a heat equalizing plate 3 is arranged on the top surface of the heater 2. In the structure of the ground wire attachment part of an electric heating floor, in which a surface material 4 is laid on the upper surface and a ground wire 5 is led out from the back surface of the heat equalizing plate 3, a through hole 6 is provided in the base material 1 to conduct the ground wire 5.
The heat equalizing plate 3 is recessed so as to convex downward at the location of the through hole 6, a screw hole 9 is formed at the bottom of the recess 7, and a ground wire 5 is connected to the back surface of the recess 7.
Terminals 8 are brought into contact with each other and fastened with screws 10, but when a load is applied to the portion of the surface material 4 above the recess 7, the surface material 4 is dented, deteriorating its appearance, and dirt accumulates in this dent. There were other problems.

[Purpose of the invention] The present invention was made in view of the above problems, and its purpose is to install a ground wire for electric heating floors that can prevent denting of the surface material by simple improvement. The aim is to provide a structure for the department.

[Disclosure of the invention] The structure of the ground wire attachment part of the electric heated floor of the invention includes a film-shaped heater 2 arranged on a base material 1,
In the heating floor, a heat equalizing plate 3 made of a metal plate is placed on the top surface of the heater 2, a surface layer material 4 is laid on the top surface of the heat equalizing plate 3, and a ground wire 5 is led out from the back surface of the heat equalizing plate 3. A through hole 6 is formed through which the ground wire 5 is connected, and the heat equalizing plate 3 is recessed so as to convex downward at the location of the through hole 6, and a screw hole 9 is formed at the bottom of the recess 7. The terminal 8 of the ground wire 5 is brought into contact with the back surface of the earth wire 7 and fixed with a screw 10, and the screw 10 is plunged into the recess 7, and an annular spacer 11 having a height approximately equal to the depth of the recess 7 is inserted. It is characterized by being formed by inserting the screw tool 10 into the recess 7, and by configuring it in this way, the above object is achieved. In other words, by inserting an annular spacer 11 with a height approximately equal to the depth of the recess 7 into the recess 7 through the screw 10 inserted into the recess 7, the load applied to the portion of the surface material 4 above the recess 7 is reduced. The surface material 4 is received by the spacer 11 to prevent it from being dented in the recess 7, and the annular spacer 11 is inserted into the screw 10 to prevent the spacer 11 from moving. This is to ensure that the sound is played reliably.

Embodiments of the present invention will be described in detail below based on the drawings.

As shown in FIG. 1, a recess is formed on a base material 1 made of wood, and a film-shaped heater 2 is spread over substantially the entire surface of this recess. A heat equalizing plate 3 made of a metal plate is spread over the entire upper surface of the heater 2, so that the temperature distribution during heating based on the energization of the heater 2 becomes approximately uniform. Here, the heat soaking plate 3 is housed in the recess so as to be flush with the upper surface of the base material 1, as shown in FIG. A heating floor A is constructed by laying a surface layer material 4 such as woven fabric, non-woven fabric, etc. on the upper surface of the heat equalizing plate 3. The base material 1 is penetrated with a through hole 6 through which a ground wire 5 is led out. At the location of the through hole 6, the heat equalizing plate 3 is recessed so as to be convex downward. A sleeve 12 having a screw hole 9 formed therein is suspended from the back surface of the recess 7.
The terminal 8 of the ground wire 5 is brought into contact with the sleeve 12, and the screw 10 is screwed into the sleeve 12 to connect the ground wire 5 to the heat equalizing plate 3. In such case,
The upper part of the screw tool 10 protrudes into the recess 7. An annular washer-like spacer 11 having a height approximately equal to the depth of the recess 7 is inserted into the screw 10 within the recess 7.

In this way, the annular spacer 11 having a height approximately equal to the depth of the recess 7 is inserted into the screw 10 inserted into the recess 7, and the load applied to the surface material 4 portion above the recess 7 is transferred to the spacer 11. Receive the surface layer material 4
It is arranged so that it does not dent into the recess 7.
Further, the annular spacer 11 is inserted through the screw 10 to prevent the spacer 11 from moving.

[Effects of the invention] In summary, the present invention has a recess formed on the upper surface of the base material, a heater and a heat equalizing plate are housed in the recess, and a spacer is employed, whereby the heater and the heat equalizing plate are The surface material on the top surface of the heating floor with a built-in heating floor can be made into a flat surface, and the screw tool inserted into the recess has a height approximately equal to the depth of the recess. Since the annular spacer is inserted through the spacer, the load applied to the surface layer above the recess can be absorbed by the spacer, preventing the surface material from denting into the recess, and the annular spacer can be inserted into the screw tool. Therefore, there is an advantage that movement of the spacer can be prevented and the function of the spacer can be reliably performed.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of one embodiment of the present invention, and FIG. 2 is a cross-sectional view of a conventional example. 1 is a substrate, 2 is a heater,
Reference numeral 3 denotes a heat equalizing plate, 4 denotes a surface material, 5 denotes an earth wire, 6 denotes a through hole, 7 denotes a recess, 8 denotes a terminal, 9 denotes a screw hole, 10 denotes a screw fixture, and 11 denotes a spacer.

Claims (1)

[Scope of utility model registration request] A film-shaped heater is arranged in a recess made on the top surface of the base material, a heat equalizing plate made of a metal plate is arranged on the top surface of the heater, a surface layer material is laid on the top surface of the heat equalizing plate, and the heat equalizing plate is In the heating floor where the ground wire is led out from the back side, a through hole is formed in the base material to conduct the ground wire, the heat equalizing plate is recessed so as to convex downward at the location of this through hole, and the bottom of this recess is A screw hole is formed, the terminal of the ground wire is brought into contact with the back side of the recess, and it is fixed with a screw tool, the screw tool is plunged into the recess, and an annular spacer having a height approximately equal to the depth of the recess is inserted into the recess. The structure of the ground wire attachment part of an electric heating floor, which is inserted through a screw fitting inside the floor.