JP2003339550A - Plug with temperature regulator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a movable member detachably engaged with a locking part formed at a plug receiving part, and to always energize the movable member in a direction of being locked to the locking part in a plug with a temperature regulator detachably connected to a plug receiving part of an electric appliance and provided with a thermosensitive bar for measuring the temperature of the electric appliance while supplying power to the electric appliance. <P>SOLUTION: In the positively connected state of an electrode 5 and a contact 11 when the plug with the temperature regulator is inserted in a recessed part 3 of the plug receiving part 2, a claw 14 of the movable member 12 is locked to the locking part 7 to positively hold the connected state. There is therefore no occurrence of inconvenience such as a connecting failure or overheating caused by spark due to the connected state being loosened to become uncertain by vibration or the like. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plug with a temperature controller, which is provided with a heat-sensitive rod for supplying electric power to an electric heating cooker such as a hot plate and measuring the temperature of the electric heating cooker. , A plug having a function of adjusting the temperature of an electric heating cooker.

[0002]

2. Description of the Related Art A conventional plug with a temperature controller is provided with a receiving blade that electrically connects and mechanically holds an electrode pin connected to a heater of an electric appliance, and keeps the temperature of an electric heating appliance. Equipped with a heat-sensitive bar for measurement.

[0003]

However, in this conventional device, since the electrode pin is electrically connected by being mechanically held by the receiving blade, the receiving blade is imperfectly connected to the electrode pin. Power may be generated even in the closed state.

In such a case, the contact state between the receiving blade and the electrode pin may change due to vibration and the like, which may cause sparking or overheating, and the sparking may damage the receiving blade or the electrode pin, resulting in insertion / removal. May become difficult, or the elasticity of the receiving blade may decrease due to heating, and the contact state may worsen.

The present invention has been made in view of the above circumstances, and prevents a plug with a temperature controller from being imperfectly coupled to an electric appliance, and is always used in a surely coupled state. The purpose is to do so.

[0006]

Therefore, the present invention comprises a heat-sensitive rod which is detachably connected to a plug receiving portion of an electric appliance and supplies electric power to the electric appliance and measures the temperature of the electric appliance. In the plug with a temperature controller, the plug with a temperature controller is provided with a movable member that can be engaged and disengaged with a locking portion formed in the plug receiving portion, and the movable member is always locked in the locking portion. It is characterized by having been urged.

Further, according to the present invention, a groove or a ridge corresponding to a ridge or a groove extending in the inserting direction of the plug with a temperature controller formed in the plug receiving portion is formed on the outer surface of the plug with a temperature controller. Is preferably formed.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. The drawings show one embodiment of the present invention, in which 1 is a plug with a temperature controller of the present invention, and 2 is a plug receiving portion 2 provided in a main body of an electric appliance.

The plug receiving portion 2 is a plug 1 with a temperature controller.
Has a recess 3 into which the
A pair of electrodes 5 connected to an electric heater 4 of an electric appliance are projected, and a through hole 6 is formed in the center of the back surface. Locking portions 7 are formed on both side surfaces of the recess 3.

In the plug 1 with a temperature controller, a heat-sensitive rod 9 is inserted into the through hole 6 at the center of the front end surface of the plug body 8 to measure the temperature of the electric appliance. A hole 10 is provided, and the electrode 5 is provided at the back of the through hole 10.
A contact point 11 is provided to abut.

On both sides of the plug body 8, movable members 12 are provided so as to be swingable with respect to the plug body 8. The movable member 12 is pivotally supported on the plug body 8 at its rear end portion, and a side surface thereof is provided with a claw 14 that is detachably engaged with the operation portion 13 and the engagement portion 7, The pawl 14 is constantly urged by the spring 15 in a direction in which the pawl 14 is locked to the locking portion 7.

Further, as shown in FIG. 3, projections 16 extending in the inserting direction of the plug 1 with a temperature controller are formed on the upper and lower surfaces of the recess 3 of the plug receiving portion 2 and the temperature controller is provided. Protrusion 16 in the plug body 8 of the plug 1
A groove 17 into which the ridge 16 is fitted is formed at a position corresponding to.

The ridge 16 and the groove 17 may be formed in the plug 1 with the temperature controller and the groove may be formed in the plug receiving portion 2 contrary to FIG. Further, the position is not particularly limited, and it may be formed only on one of the upper and lower surfaces, and the number thereof is also arbitrary.

Reference numeral 18 in FIG. 3 is a temperature setting dial, which is adapted to adjust the temperature by the plug 1 with a temperature controller to set the temperature of the electric appliance to be kept constant.

[0015]

In the present invention, when the plug with temperature controller 1 is inserted into the recessed portion 3 of the plug receiving portion 2, the heat-sensitive rod 9 penetrates the through hole 6 and comes into contact with the temperature measuring portion of the electric appliance, and the electrode. 5 is fitted into the through hole 10 on the tip end surface of the plug 1 with the temperature controller, abuts on the contact 11, and is electrically connected.

Then, the plug 1 with the temperature controller is inserted into the recess 3
When it is inserted into the plug body 8, the movable member 12 comes into contact with the entrance of the recessed portion 3 to resist the elastic force of the spring 15 so that the claw 14 can be moved.
Swing in the direction of sinking.

When the plug 1 with the temperature controller is further inserted deeply into the recess 3 and the claw 14 coincides with the position of the locking portion 7, the elastic force of the spring 15 causes the movable member 12 to swing in the direction in which the claw 14 projects. As a result, the claw 14 is locked to the locking portion 7.

As a result, the plug 1 with the temperature controller is securely coupled to the plug receiving portion 2, the electrode 5 and the contact 11 are electrically and reliably connected, and this state is held by the movable member 12 to prevent vibration. Never loosen.

After using the electric appliance, the movable member 12 is swayed against the elasticity of the spring 15 by gripping the plug body 8 of the temperature controller plug 1 and pressing the operating portion 13 with a finger. The claw 14 moves to disengage from the locking portion 7, and the plug 1 with the temperature controller can be pulled out from the recess 3.

According to the second aspect of the invention, when the plug with temperature controller 1 is inserted into the recessed portion 3, the recessed groove 17 is formed.
When the plug 1 with the temperature controller is guided by fitting the ridge 16 with the ridge 16, even if the plug 1 with the temperature controller is inserted with some distortion, the distortion is corrected and the heat-sensitive rod 9 is inserted. Is inserted straight and the contacts 11 make positive contact with the electrodes 5.

[0021]

Therefore, according to the present invention, when the plug with temperature controller 1 is inserted into the recess 3 of the plug receiving portion 2,
In the state where the electrode 5 and the contact 11 are securely connected,
The claw 14 of the movable member 12 is locked to the locking portion 7 to securely hold the connected state, and the connected state is loosened due to vibration and the like to become uncertain, and there is no inconvenience such as poor connection due to sparking or overheating. .

When the plug 1 with the temperature controller is securely inserted into the recess 3, the movable member 12 swings and the claw 14 moves.
By engaging the locking portion 7 with the locking portion 7, it is possible to confirm by clicking sound and visual confirmation that the operating portion 13 is projected and the connection is surely made. Also, if it cannot be confirmed, it is known that the connection is uncertain, and further reliable connection is promoted.

According to the second aspect of the present invention, since the protrusion 16 and the groove 17 are engaged with each other to guide the insertion direction of the plug 1 with the temperature controller, even when the plug 1 is inserted with some distortion. Fix it and make it easier to connect more reliably.

Further, in recent years, various electric appliances have been used in the home, and plugs with a temperature controller have been often used for these appliances, but the temperature range set depends on the type of the electric appliance. Instead, similar shaped temperature regulated plugs are often used and they can be interconnected.

In that respect, according to the invention of claim 2, the position and the shape of the ridge 16 and the concave groove 17 are different for each electric appliance, so that the plug 1 with the temperature controller of another electric appliance is provided. Can be combined to prevent misuse.

[Brief description of drawings]

FIG. 1 is a central longitudinal sectional view showing an embodiment of the present invention.

FIG. 2 is a central longitudinal sectional view showing a state in which the plug with a temperature controller of the present invention is connected to a plug receiving portion.

FIG. 3 shows the invention of claim 2, wherein (a)
[Fig. 3] is a plan view showing a cross section of a plug receiving portion, and (b) is a cross-sectional view in a coupled state.

[Explanation of symbols]

1 Plug with temperature controller 2 Plug receiving part 7 Locking part 9 Heat sensitive rod 12 Movable member 16 ridges 17 groove

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Noriaki Fujita             Elephant 1-20-5 Tenma, Kita-ku, Osaka City, Osaka Prefecture             In Mahobin Co., Ltd. (72) Inventor Yusaku Hikita             Elephant 1-20-5 Tenma, Kita-ku, Osaka City, Osaka Prefecture             In Mahobin Co., Ltd. F-term (reference) 4B040 AA02 AA08 AC03 AD04 CA04                       EB14 GD11 LA04

Claims (2)

[Claims] 1. A plug with a temperature controller, which is detachably coupled to a plug receiving portion (2) of an electric appliance, and which has a heat sensitive rod (9) for supplying electric power to the electric appliance and measuring the temperature of the electric appliance. In (1), the plug (1) with a temperature controller is provided with a movable member (12) which can be engaged with and disengaged from the locking portion (7) formed in the plug receiving portion (2), and the movable member ( 12) A plug with a temperature controller, characterized in that the plug 12) is always urged in a direction to be locked by the locking portion (7). 2. A ridge (16) or groove formed in the plug receiving portion (2) extending in the insertion direction of the plug with temperature controller (1) on the outer surface of the plug with temperature controller (1). The plug with temperature controller according to claim 1, characterized in that a concave groove (17) or a ridge corresponding to the groove is formed.