JPS607519Y2 - Electric cooker cord extraction device - Google Patents

Description

[Detailed Description of the Invention] The present invention particularly relates to a device for pulling out a cord connected to a heater built into the body of a cooking appliance such as an electric stove, an electric pot, or a toaster.

2. Description of the Related Art Conventionally, there has been a means for pulling out a cord connected to a heater provided inside an electric stove or the like from the bottom surface of a cooking appliance body to the outside, for example, as shown in FIG.

That is, the cord 2 has two branch wires 2A and 2B whose free ends are connected to a heater built into the cooker body 1 and which are covered with protective tubes 3 and 3 made of glass-braided silicone material, for example. The rear part (closer to the plug) of the branching point Y was inserted into a protective tube 10 made of rubber or plastic material, and the protective tube 10 was bored in the bottom plate 1a of the cooking device main body 1. The protective tube 10 was pulled out to the outside through the hole 1b, and the cord 2 was positioned, clamped, and fixed on the bottom plate 1a using instruments such as a saddle 11 and cleats.

However, the conventional cord pulling means described above requires the protective tube 10 in addition to equipment such as the saddle 11 to position and fix the cord 2, and the installation work is time-consuming and the cooking device main body 1 cannot be placed on a table or the like. Each time the cord 2 is moved or moved, the drawn-out portion of the cord 2 comes into contact with a table surface, etc., and is forcibly bent, resulting in severe fatigue of the cord 2.

Furthermore, according to the Electrical Appliances and Materials Control Law, electric cookers such as electric stoves, electric pots, and toasters that use built-in heaters for cooking must satisfy regulations regarding the temperature rise of each part. Among them, the two branch lines 2A of the cord 2 covered with the protective tube 3.3 as in the present application.

The temperature increase at the branch point Y of 2B is also specified (
(90°C or lower), it is necessary to satisfy this requirement.

By the way, in the above-mentioned conventional example, the branch point Y of the branch lines 2A and 2B of the cord 2 is located inside the cooker body 1 where the radiant heat of the heater is trapped, and therefore self-heating due to the energization of the branch lines 2A and 2B occurs. Since the heater's radiant heat is added, the temperature above 90°C must be taken separately to block and radiate the heat.
It was not possible to satisfy the specified temperature rise limit.

The present invention was made in view of the above points, and its purpose is to insert a branch line of a cord whose free end is connected to the heater of the cooker body to form a self-forming inside of the cover body. The branch line is elastically held and fixed between the protrusion and the bottom plate, and the branch point of the branch line is positioned within the coil spring fitted to the rear of the drawer cover, making the cord installation work easier. An object of the present invention is to provide a cord pull-out device for an electric cooker that prevents fatigue of the cord pull-out portion and suppresses the rise in temperature at the branch point of a branch line so as to comply with the provisions of the Electrical Appliance and Material Control Law.

Embodiments of the present invention will be described below with reference to FIGS. 2 and 3.

1 is an electric stove with a built-in heater (not shown);
A main body of a cooking device such as an electric pot or a toaster, 1a is a bottom plate of the main body 1 of the cooking device, 1b is an insertion hole formed in the bottom plate 1a, 1
C is a deflection absorbing hole bored adjacent to the insertion hole 1b via an elastic rib 1d.

In order to prevent the temperature of the cord 2 from rising, the insertion hole 1b and the deflection absorption hole 1c are respectively formed along the outer edge of the bottom plate 1a as far away from the heater as possible.

2A and 2B are branch wires whose free ends are connected to the heater or switch, and whose outer peripheries are covered with protective tubes 3 and 3, and from the branch point Y of the branch wires 2A and 2B, the conid 2 is End portion 3a of the protective tube 3 covering the outer periphery
are tied together with cotton thread 4 grade.

5 is a mounting wing 5Δ formed of heat-resistant plastic such as phenol resin into a substantially box shape, and protruding from the front and rear surfaces of the outside.
, 5B is a drawer cover that is screwed to the bottom plate 1a of the cooking device main body 1 so as to cover the insertion hole 1b and the deflection absorption hole 1c by inserting screws 6 into the screw holes 5a, 5a drilled in the screw hole 5B. be.

Reference numeral 5b denotes a protrusion formed inside the drawer cover 5 so as to face the rib 1d of the bottom plate 1a and perpendicular to the axial direction of the branch lines 2A and 2B of the cord 2. Two branch lines 2 of cord 2 drawn inside
By elastically holding A and 2B between the protrusions 5b and the ribs 1d, movement in the axial direction and the direction orthogonal to the axial direction within the drawer cover 5 is restricted.

5C□ is a drawer hole bored in the rear wall 5C formed diagonally downward at the rear of the drawer cover 5, and this drawer hole 5c
One end of a coil spring 7 for holding is fitted into the inside of the spring 1.

Then, by arranging the branch point Y of the branch wires 2A and 2B covered with the protective tube 3 of the cord 2 and the end portion 3a bound with cotton thread 4 etc. in the coil spring 7, the cord 2 is pulled out from the pull-out hole 5 cm. It is drawn out through a coil spring 7.

One embodiment of the present invention has the above-mentioned configuration, in which each free end is connected to a heater (not shown) in the cooker body 1, and is covered with a protective tube 3.3 for protection. The two branch lines 2A and 2B of the cord 2 are drawn through the insertion hole 1b of the bottom plate 1a of the cooking device main body 1 into the drawer cover 5, which is fixed to the bottom plate 1a with screws 6 or the like. As a result, it is protected by the drawer cover 5, and is elastically protected from the upper and lower surfaces by the protrusion 5b provided inside the drawer cover 5 and the rib 1d formed on the bottom plate 1a opposite to the protrusion 5b. be held between.

Therefore, the two branch lines 2A and 2B are positioned and fixed without moving in the axial direction of the cord 2 or in the direction perpendicular to the axial direction.

Moreover, the branching point Y of the branch lines 2A and 2B is located within the coil spring 7 fitted in a draw-out hole 5c1 formed at the rear of the drawer cover 5 and drawn out to the outside.

Therefore, even if the cooker main body 1 is moved on the table surface, the external drawer part of the cord 2 is protected by the coil spring 7, so there is no fatigue such as wear or forced bending, and it can be used for a long time. Endure.

Moreover, the branch point Y of the two branch lines 2A and 2B is the coil spring 7 extending to the outside of the drawer cover 5 away from the heater.
Since it is placed inside the coil spring, it is less affected by the radiant heat of the heater, and it receives the cooling effect of the outside air flowing in through the coil spring 7, so it easily satisfies the temperature rise limit stipulated in the Electrical Appliance and Material Control Law. be able to.

As mentioned above, the present invention introduces the branch wire of the cord whose free end is connected to the heater of the cooker body into the drawer cover fixed to the bottom plate of the cooker body, and coils the drawer part from the cooker body. The spring protects the drawer part from fatigue, and the cord branch line can be held and fixed between the protrusion formed inside the drawer cover and the bottom plate, which greatly simplifies the installation work. Since the branch point of the branch line is located within the coil spring fitted to the drawer cover, outside air can flow to the coil spring, and temperature rise at the branch point can be suppressed.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing a conventional cord pulling means;
The figure is a sectional view showing an embodiment of the present invention, and FIG. 3 is a perspective view showing an example of a drawer cover, which is the main part of the present invention. 1...Cooker main body, 1a...Bottom plate,
1b: Insertion hole, 1c: Deflection absorption hole, 1d: Rib, 2: Cord, 2A
, 2B... Branch line, 3... Protective tube, 3a... End of protective tube 3, 4...
... Binding thread, 5... Drawer cover, 5b...
...Rib, 7...Coil spring, Y...
...A branch point on a branch line.

Claims (1)

[Scope of utility model registration request] A drawer cover covering the insertion hole is fixed to the bottom plate of the electric cooker main body in which the insertion hole is drilled, and a branch line of the cord pulled out from the insertion hole is inserted inside the drawer cover perpendicular to the axial direction of the branch line. The coil is sandwiched between the protrusion formed in the drawer cover and the bottom plate, and the branch point of the branch wire is positioned within the coil spring that is fitted into the drawer hole formed in the drawer cover and extends to the outside. A cord pulling device for an electric cooker, characterized in that the cord is pulled out from a spring.