JP2000291970A - Electrical carpet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and conveniently remove a power supply section for a controller, with a simple operation. SOLUTION: In an electric carpet where a temperature-adjusting controller 2 is provided on a carpet body 1, on which controller 2 a power supply plug 10 as a power supply section is removably provided, a lock structure 5 is provided for demountably locking the power supply plug 10 with respect to the controller 2, on which controller 2 there is provided a release button 6 as release means for unlocking the lock structure.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric carpet laid on a floor in a room and used for heating the room.

[0002]

2. Description of the Related Art An electric carpet of this type includes, for example, a carpet body in which a planar heating element is incorporated, a temperature control controller attached to an edge of the carpet body, and a power supply connected to the controller. Consists of code and

[0003] As a method of connecting the power cord to the controller, there are a direct attachment method and a detachment method. In recent years, the decorative properties of the carpet body have increased, and the carpet body has been laid and used on the indoor floor throughout the year, not only during the winter season. The method has become common.

In this detachable type, a connection blade such as a flat blade or a round pin is provided on the controller, a power plug as a power supply is attached to a power cord, and a blade support corresponding to the connection blade is attached to the power plug. Is provided.

At the time of connection, a power plug is inserted into a fitting opening of the controller, and by this insertion operation, the connection blade of the controller is pressed into the blade receiver of the power plug, and the power plug is locked to the controller via a lock mechanism. Let it.

Further, at the time of removal, the power plug is pulled out from the fitting opening of the controller against the fastening force by the lock mechanism and the press-fitting / clamping force between the connection blade and the blade receiver.

[0007]

However, in such a conventional structure, when the power supply plug is removed from the controller, the power supply is prevented against the fastening force by the lock mechanism and the press-fitting force between the connection blade and the blade holder. The plug must be pulled out of the controller, which requires a relatively strong force to operate, and requires the use of both hands, which is inconvenient.

The present invention has been made in view of such a point, and it is an object of the present invention to provide an electric carpet which can easily and lightly remove a power supply unit from a controller by a simple operation. It is in.

[0009]

In order to achieve the above object, the present invention provides an electric carpet in which a carpet body is provided with a temperature control controller, and a power supply is detachably provided on the controller. ,
A lock mechanism for removably locking the power supply unit with respect to the controller and one releasing means for releasing the lock by the lock mechanism are provided.

[0010] In the invention of claim 2, the power supply section includes a through hole into which a connection portion of the controller is inserted, a terminal capable of contacting the connection portion of the controller inserted through the through hole, and the through hole. And a shielding mechanism for interposing a shielding body in accordance with the presence or absence of the insertion of the connection portion between the hole and the terminal.
The power supply unit has a terminal that can be in contact with the connection part of the controller, the terminal is supported via an elastic member, and the terminal is inserted by the connection part against the elastic member when the connection part of the controller is inserted. The power supply unit is pressed by the lock mechanism, and the power supply unit is locked to the controller by the lock mechanism. When the lock mechanism is released, the power supply unit is separated from the controller by the elastic force of the elastic member.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a partial structure of an electric carpet. Reference numeral 1 denotes a carpet body, and a controller 2 is attached to an edge of the carpet body 1. A heating element (not shown) is incorporated in the carpet body 1, and a temperature adjustment mechanism (not shown) for controlling the power supply to the heating element to adjust the temperature is incorporated in the controller 2.

A horizontally long fitting opening 3 is formed on a side surface of a corner of the controller 2, and a wall surface 3 on the depth side of the fitting opening 3 is formed.
A pair of connection pins 4 protrude from connection portion a as a connection portion, and these connection pins 4 are electrically connected to the heating element in the carpet body 1 via the temperature control mechanism.

A pair of lock members 5 constituting a lock mechanism are provided on both inner sides of the fitting opening 3. These lock bodies 5 are provided so as to be slidable along the longitudinal direction of the fitting port 3 and are elastically urged in the direction toward the intermediate portion side of the fitting port 3 via an elastic member (not shown) such as a spring. Have been. The end surfaces of the distal ends of the lock bodies 5 are inclined surfaces 5a that are inclined obliquely.

A release button 6 which can be pushed in is provided on the upper surface of the controller 2 as a lock release means. By pushing the release button 6, each lock body 5 is moved in the right and left outward direction of the fitting opening 3 against the elastic member. You can slide it. Release button 6
Is held so as to be arranged at a position slightly lower than the upper surface of the controller 2 even when the pressing is released.

Reference numeral 10 denotes a power plug serving as a power supply unit. The power plug 10 is attached to an end of a power cord 11. This power plug 10 is provided with a fitting portion 12 that can be inserted into the fitting opening 3 of the controller 2, and a pair of through holes 13 corresponding to the connection pins 4 of the controller 2 are formed on an end surface of the fitting portion 12. In addition, engaging recesses 14 that can be engaged with and disengaged from the lock body 5 of the controller 2 are formed on both side surfaces of the fitting portion 12.

As shown in FIG. 2, a connection terminal 1 is provided inside the power plug 10 so as to face the through holes 13.
The terminals 15 are attached to a leaf spring 16 as an elastic member, and the terminals 15 are electrically connected to the conductors of the power cord 10 via the leaf springs 16.

Each terminal 1 is provided inside the power plug 10.
An opening / closing body 18 that constitutes a shielding mechanism is provided opposite to 5. The opening / closing body 18 includes an arm plate 19 and a curved plate-shaped shield 20 integrally formed at an end of the arm plate 19.
The arm plate 19 is rotatably attached to a support plate 21 provided in the power plug 10 via a support shaft 22.

The opening / closing body 18 is elastically urged in the clockwise direction in FIG. 2 by a spring 23 provided on the support shaft 22, and the urging force normally causes the arm plate to normally move as shown in FIG. 19 is in contact with the stopper 24, and the shield 20 is held so as to be disposed between the terminal 15 and the through hole 13.

The shield 20 has a notch 25 facing the through hole 13. The notch 25 extends to the lower end of the shield 20 and is open.
From the power plug 10 toward the depth direction.

Next, the operation will be described. When attaching the power plug 10 to the controller 2, first, the fitting portion 12 of the power plug 10 faces the fitting opening 3 of the controller 2, and in this state, the fitting portion 12 is inserted into the fitting opening 3.

With this insertion, the front corners at both ends of the fitting portion 12 come into contact with the inclined surfaces 5a of the lock members 5, and with this contact, the lock members 5 are opposed to the elastic members and are outside the fitting port 3. Pushed in the direction. Then, the fitting portion 12 is further fitted with the fitting opening 3.
, Each engaging recess 14 faces each locking body 5, and in response to this facing, each locking body 5 protrudes into each engaging recess 14 by the urging force of the elastic member. As a result, the lock bodies 5 and the engagement recesses 14 are engaged to lock the power plug 10 with respect to the controller 2.

When the fitting portion 12 of the power plug 10 is inserted into the fitting opening 3 of the controller 2, FIG.
As shown in (B), the connection pin 4 of the controller 3 relatively enters the through hole 13 of the power plug 10. With this approach, the tip of the connection pin 4 comes into contact with the inclined surface 25 a formed above the notch groove 25 of the shield 20,
With this contact, the shield 20 is pushed up so as to rotate counterclockwise against the spring 23, whereby the connection pin 4 further enters and contacts the terminal 15.

At this time, the terminal 15 is pushed toward the depth side of the power supply plug 10 against the leaf spring 16 by the stroke of entry of the connection pin 4, and when the connection pin 4 enters the predetermined stroke position, The lock body 5 is connected to each engagement recess 14
And the power plug 10 is locked to the controller 2. Then, the electrical connection between the power plug 10 and the controller 2 is achieved by the contact between the connection pin 4 and the terminal 15.

On the other hand, from the controller 2 to the power plug 1
To remove 0, the release button 6 is pushed down. With this pushing operation, each lock body 5 moves outward of the fitting opening 3, and each lock body 5 is disengaged from the engagement recess 14, and the lock of the power plug 10 with respect to the controller 2 is released.

In response to the release of the lock, the connection pin 4 of the controller 2 is relatively pushed out of the power plug 10 by the elastic force of the leaf spring 16 in the power plug 10. The joint 12 is separated from the inside of the fitting opening 3 of the controller 2, and the removal of the power plug 10 from the controller 2 is automatically achieved.

When the connection pin 4 is relatively pushed out from the inside of the power plug 10 and the connection pin 4 is separated from the through hole 13, the shield 20
Is rotated clockwise about the support shaft 22 and intervenes between the through-hole 13 and the terminal 15, and the shield 20 regulates the space area from the through-hole 13 to the terminal 15 to a narrow range.

As described above, the power plug 10 can be easily and lightly removed from the controller 2 by only operating the release button 6 without requiring a strong operation force and without using both hands.

Since the upper surface of the release button 6 is always held below the upper surface of the controller 2, even if the upper surface of the controller 2 is stepped on with a foot, the release button 6 is inadvertently released. 6 is not operated.

The power plug 10 is connected to the controller 2.
When removed from the terminal, the shielding body 20 intervenes between the through hole 13 and the terminal 15 and the space region from the through hole 13 to the terminal 15 is restricted to a narrow range. And the risk of electric shock or short circuit can be prevented.

[0031]

As explained above, according to the present invention,
The removal of the power supply from the controller can be performed easily and lightly with a simple operation, and the usability is definitely improved.

According to the second aspect of the present invention, when the power supply unit is removed, the shield intervenes between the through hole and the terminal. In the third aspect of the present invention, the power supply unit is automatically separated from the controller by the elastic force of the elastic member supporting the terminal when the lock mechanism is released. Can be performed more easily.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a partial structure of an electric carpet according to an embodiment of the present invention.

FIG. 2 is a sectional view showing a part of an internal structure of a power plug in the electric carpet.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Carpet main body 2 ... Controller 4 ... Connection pin (connection part) 5 ... Lock body 6 ... Release button (release means) 10 ... Power plug 11 ... Power cord 13 ... Through-hole 14 ... Engaging recess 15 ... Terminal 16 ... Board Spring 20 ... Shield

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (Reference) H01R 13/639 H01R 13/44 G

Claims (3)

[Claims] 1. An electric carpet, wherein a controller for temperature control is provided on a carpet main body, and a power supply unit is detachably provided on the controller. A lock for removably locking the power supply unit with respect to the controller. An electric carpet, comprising: a mechanism; and one release unit that releases a lock by the lock mechanism. 2. A power supply unit comprising: a through hole into which a connecting portion of a controller is inserted; a terminal capable of contacting the connecting portion of the controller inserted through the through hole; and a power supply between the through hole and the terminal. The electric carpet according to claim 1, further comprising: a shielding mechanism that interposes a shielding body according to whether or not the connecting portion is inserted. 3. The power supply section has a terminal capable of making contact with a connection section of the controller. The terminal is supported via an elastic member, and is connected to the elastic member when the connection section of the controller is inserted. The terminal is pressed by the unit, and the power supply unit is locked to the controller by the lock mechanism,
3. The electric carpet according to claim 1, wherein the power supply unit is detached from the controller by the elastic force of the elastic member when the lock mechanism is released.