JPS624270Y2 - - Google Patents

Description

[Detailed description of the invention] This proposal relates to an electric heat-retaining pot, and more specifically, to a mounting structure for a band heater in an electric heat-retaining pot.

The conventional mounting structure for this type of band heater is to tighten the bent portions at both ends of the band heater with screws, but it is difficult to tighten the bent portions at both ends of the band heater closely and sufficiently, and the band It has the disadvantage that it tends to loosen due to expansion due to heating by the heater.

The purpose of this invention is to provide an electric heat-retaining pot that can eliminate such conventional drawbacks.The characteristic configuration for achieving this purpose is to wrap a band heater around the circumference of the tank, and bend both ends of the band heater. The bent portions of the band heater are each provided with an L-shaped reinforcing plate, and the pair of reinforcing plates are intersected so as to be tightened with a screw,
A component mounting plate is provided on the pair of reinforcing plates, and each of the pair of reinforcing plates is fixed to the component mounting plate with screws.

Next, an embodiment based on the above characteristics will be described with reference to the accompanying drawings.

A band heater 2 is wound around the lower end of the circumferential surface of a tank 1, and a screw 3a is laterally inserted and tightened so that the bent portions 3 formed at both ends of the band heater 2 butt each other. One receiving piece 4a of each L-shaped reinforcing plate 4 is closely fixed to the bent portion 3 of the heater 2, and the other receiving piece 4b of the pair of L-shaped reinforcing plates 4 is engaged with each other in a cross state. one side of the component mounting plate 5 is placed on the pair of receiving pieces 4b of the reinforcing plate 4, and the component mounting plate 5 and the pair of 4b are respectively tightened by the screws 4. It is fixed with a screw 6. In that case, the component mounting plate 5 is provided with a long hole 7 as a through hole for the screw 6 so that the fixing point of the screw 6 can be adjusted, and the component mounting plate 5 is L-shaped. Components such as the heat insulating fuse 8 can be sandwiched between the other side of the component mounting plate 5 and the bottom of the tank 1, or the components can be screwed together.

Also, one of the receiving pieces 4b of the pair of L-shaped reinforcing plates 4 is formed with a small width and the other with a large width, and the large width receiving piece 4b is provided with a groove 4c into which the small width receiving piece 4b can fit. The receiving pieces 4b having a small width are formed so as to fit into the grooves 4c so as to intersect with each other. Further, claws 4d are formed at the ends of the receiving pieces 4a of the pair of L-shaped reinforcing plates 4, and when the receiving pieces 4a are brought into close contact with the bent portion 3 of the band heater 2, the claws 4d
is formed so as to engage near the corner of the bent portion 3. It goes without saying that the pair of L-shaped reinforcing plates 4 may each be divided into an appropriate number of pieces. However,
Each bent portion 3 at both ends of the band heater 2 has an L
A pair of L-shaped reinforcing plates 4 are provided, and one receiving piece 4b of the pair of L-shaped reinforcing plates 4 is fixed to the component mounting plate 5 with screws 6 in a crossed state. Bent portions 3 at both ends due to expansion due to heating, etc.
Even if a force that increases the distance between the parts mounting plate 5
There is no need to worry about it coming loose as it is blocked by the fastening point.

Further, since the receiving pieces 4b of the pair of reinforcing plates 4 are engaged with each other in a crosswise state, displacement in the vertical and horizontal directions can be prevented, resulting in a strong connection structure. In addition, since the component mounting plate 5 is used to strengthen the connection of the band heater 2, components such as fuses can be attached to the mounting plate 5, which reduces the number of parts and facilitates assembly.

Further, the receiving piece 4a of the reinforcing plate 4 is provided with a claw 4d, and this claw 4d engages with the corners of the bent portions 3 at both ends of the band heater 2.
Since the bent portions 3 are in close contact with each other, the bent portion 3 becomes like a strong plate, and when the screws 3a are inserted laterally and tightened, the bent portion 3 does not fall down and can be sufficiently tightened and fixed.

This idea is as described above, and L-shaped reinforcing plates are provided at the bent portions of both ends of the band heater, the pair of reinforcing plates are crossed and tightened with screws, and a component mounting plate is placed on the pair of reinforcing plates. etc., and a pair of reinforcing plates are screwed and fixed to the parts mounting plate, etc., so that a good connecting structure is created that can prevent the ends of the band heater from opening, and its practical effects are great.

[Brief explanation of the drawing]

Fig. 1 is a front view of the whole with a partial cutaway, Figs. 2 and 3 are perspective views showing the state before the both ends of the band heater are connected, and Fig. 4 is a perspective view showing the same connected state.
FIG. 5 is a sectional view of the same as above. 1...Tank, 2...Band heater, 3...
Bent part, 3a...Screw, 4...Reinforcement plate, 4a, 4
b...Socket piece, 5...Component mounting plate, 6...Screw.

Claims (1)

[Scope of claim for utility model registration] (1) Wrapping a band heater around the circumference of the tank,
In an electric heat-retaining pot whose bent portions at both ends of the band heater are tightened with screws, L is attached to each of the bent portions of the band heater.
The invention is characterized in that a pair of reinforcing plates are provided in a crossed state and tightened with screws, a plate is provided on the pair of reinforcing plates, and each of the pair of reinforcing plates is fixed to this plate with screws. An electric heating pot. (2) The electric heat-insulating pot according to claim 1, wherein the plate for fixing the pair of reinforcing plates is a component mounting plate.