JPH0335217Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to the installation of a temperature controller in an electric pot.

<Conventional technology> Conventionally, electric pots have a bottomed cylindrical inner container with a heating element attached to the lower outer periphery of the inner container to heat the liquid in the inner container.
A mounting bracket is spot-welded to the bottom of the inner container, and it is equipped with a cylindrical body and a cylindrical temperature sensing part with a diameter slightly larger than the main body at the bottom of the body, which senses the temperature inside the inner container and generates heat. A temperature regulator is provided to control the supply of electricity to the body, and a flat presser metal fitting is provided that has a round hole that penetrates the main body of the temperature regulator and does not penetrate the temperature sensing part. Penetrate the main body side of the temperature controller, abut the lower end surface of the temperature sensing part of the temperature controller in the mounting bracket, lock the presser bracket to the mounting bracket, and attach the draining member to the upper end of the outer case surrounding the inner container. However, with this type of electric pot, when attaching the holding bracket to the mounting bracket, the temperature regulator would shift, making it impossible to assemble smoothly and reliably, making it extremely troublesome. This required a lot of work, which greatly increased the cost of assembly, and the temperature sensor did not have good contact, making it impossible for the temperature regulator to operate satisfactorily.

<Purpose of the invention> The present invention has been made in view of the above-mentioned drawbacks, and the object is to provide an electric pot that can be installed reliably and extremely smoothly and that reduces the cost of assembly work.

<Configuration of the invention> According to the invention, a guide hole through which the temperature sensing part of the temperature controller can be inserted is formed in the center of the mounting bracket, and the temperature sensor of the temperature controller is inserted between the mounting bracket and the bottom of the inner container. While providing a gap lower than the height of the sensing part, a roughly U-shaped notch groove is provided inward from the outer edge of the holding metal fitting, and the lower end of the peripheral wall forming the semicircular arc portion of the notch groove is temperature-controlled. Contact the upper circumferential edge of the temperature sensing part of the container, insert the lower end surface of the temperature sensing part through the guide hole of the mounting bracket and contact the bottom of the inner container, and fix both left and right ends of the notch groove of the presser metal fitting to the mounting bracket. The purpose is to achieve the purpose only by the configuration.

<Example of idea> Embodiments of the present invention will be described below with reference to the drawings.

The electric pot 1 includes an inner container 3 surrounded by an outer case 2, and a drainage member 4 connected to the upper end of the outer case.
and an upper lid case 6 containing a built-in bellows pump 5.
, a discharge mechanism 7 that discharges the liquid in the inner container, a heating element 8 that heats and keeps the liquid in the inner container warm, and a temperature regulator that turns the heating element on and off by sensing the temperature of the liquid in the inner container. 9, and a bottom member 1 that covers the bottom of the inner container.
It is composed of 0.

The outer case 2 is formed of a thin iron plate into a cylindrical shape, the upper end of which is bent inward and upward into a stepped shape, and the lower end of which is bent inward into a cylindrical shape to provide a gap between it and the inner container.

The inner container 3 is formed of a metal material such as stainless steel into a cylindrical shape with a bottom, and has a wide mouth at the upper end, and a flange that expands outward is provided at the tip of the wide mouth. The inner container 3 has a lower opening for dispensing liquid in the lower part of the front wall, and a short cylindrical lower pipe made of a metal material such as stainless steel is welded to this lower opening. The flange of the inner container is covered with a heat-resistant and corrosion-resistant seal packing, and is closely joined to the upper surface of a peripheral wall that forms a central opening of a receiving portion of a draining member, which will be described later. The inner container has a mounting angle 11 and a mounting bracket 12 fixed to the bottom outer wall for fixing a temperature regulator, which will be described later. As shown in FIG. 3, this mounting bracket 12 has a guide hole 24 in the center through which a temperature sensing section of a temperature regulator (described later) can be inserted, and a guide hole 24 for inserting a temperature sensing section (described later) between the mounting bracket 12 and the outer wall of the inner container. They are spot welded with a predetermined gap lower than that of the two.

The draining member 4 has a receiving part with a central opening in the center that communicates with the wide mouth of the inner container, a hinge part that hinges the upper lid case (described later) at the rear end of the receiving part, and a discharge pipe (described later) placed in front of the receiving part. It is connected to the beak. The opening of the receiving portion of the draining member supports the flange of the inner container from the lower surface of the flange through a seal packing. The flange of the draining member is provided with locking pieces for locking claws on the left and right sides for locking the locking device of the upper lid case, which will be described later.

The upper lid case 6 is swingably supported by a hinge member, and is attached to a draining member by a locking device 13 so as to be freely openable and closable, and includes a bellows pump 5, a spring 14 pushing up the bellows pump, and a bellows pump. a push valve 15 for opening and closing the upper opening of the
It has a built-in press operation member 16 that presses this push valve and force-feeds the air in the bellows pump into the inner container.The lower surface is covered with a lower lid 17, and an inner lid 18 is detachably attached to the lower part of the lower lid. are doing. Top lid case 6
is formed hollow inside, and has an elongated hole in its front upper surface through which a free end of an operating lever (to be described later) projects, and a steam vent 26 in its rear upper surface.

The bellows pump 5 is formed of a bellows part, and thick upper and lower plates at the upper and lower ends of the bellows part, with an opening for air supply provided in the center of the upper plate part, and an opening for air supply in the center of the bellows part. A hollow cylinder for air exhaust is provided in the center.

The push valve 15 is made up of an upper flat plate part and a plurality of pawls which are vertically disposed below the lower surface of the flat plate part and whose tips abut against the lower surface of a peripheral wall forming an opening in the center of the upper plate part of the bellows pump 5. It is molded.

The spring 14 has its lower end in contact with the upper surface of the lower plate inside the bellows pump, and its upper end in contact with the inner side of the claw on the lower surface of the flat plate of the push valve.

The pressing operation member 16 includes a pressing lever 19 that presses the push valve, a pressing lever mounting member that locks the pressing lever, an operating lever 21, a transmission pin that transmits the vertical movement of the operating lever to the pressing lever, and a transmission pin that transmits the vertical movement of the operating lever to the pressing lever. It consists of a stopper member 23 that restricts the movement.

The push lever 19 is formed into a substantially thick plate shape and has shaft pins protruding from the left and right sides of the rear end, one end that contacts the push valve is a free end, and the other end is connected to the push lever mounting member via the shaft pin. It is centrally supported by

The operating lever 21 is formed in a substantially inverted L shape extending from the back to the upper surface, and has an insertion hole in which the upper surface integrates a through hole into which the pressing lever can be inserted and a through hole through which the pressing lever engagement piece described below passes. is installed. The operating lever 21 has pivot pins protruding from the lower left and right sides of the back surface, respectively, which pivot between the engaging portions of the lower lid, which will be described later. The operating lever has its rear end pivoted to the lower lid via a pivot pin, and its tip is a free end that protrudes upward from the front through a long hole in the upper lid case and is movable up and down.

The transmission pin passes through and is fixed to the lower end of the side wall of the operation lever 21, and is always in contact with the upper surface of the pressing lever 19.

The press lever mounting member includes a flat plate part with a small hole that covers the steam vent of the upper lid case, and two locking claws that hang downward from the front and rear ends of the lower surface of the flat plate part and lock on the inside of the upper surface of the upper lid case. , and press lever engaging pieces that hang downward from the left and right ends of the lower surface of the flat plate portion and engage the shaft pins of the press lever, respectively, are integrally molded.

The press lever engaging piece has a long groove formed diagonally downward from the front to the rear, and each shaft pin of the press lever is fitted and pivotally supported in the long groove downwardly.

The press lever mounting member passes through the locking pawl and the press lever engagement piece from the upper end of the steam vent of the upper lid case,
With the long groove of the press lever engagement piece facing forward and the flat plate portion installed on the top surface of the steam vent, the locking pawl is locked on the inside of the top surface of the upper lid case.

The outer periphery of the lower lid 17 fits into the inner periphery of the lower end of the upper lid case, and is formed in the shape of a step descending toward the center, and has symmetrical left and right engaging portions that protrude upward on the rear upper surface. , an opening for air exhaust is drilled in the center via a rubber bushing.

The engaging portions each have a longitudinal groove into which the pivot pin of the operating lever is inserted from above and engages with the engaging portion in a loose manner.

The inner lid 18, which opens and closes the mouth of the inner container, is made of a metal material such as stainless steel and has a substantially disc shape. A rubber bushing is fitted into the center opening.

The discharge mechanism 7 includes a lift pipe 36 that also serves as a liquid level display tube, a first holder 37 that connects the lift pipe and the lower pipe of the inner container, and a discharge pipe that discharges the liquid in the inner container to an external receiver or the like. 38, and a second holder 39 that connects the discharge pipe and the pumping pipe.
and a cover body 40 that covers the front surface of the pumping pipe. The pumping pipe 36 is formed into a vertically elongated hollow tube made of transparent glass material, and the liquid level in the inner container is displayed at the liquid level indicated in the pumping pipe, and can be visually checked from the front of the cover body. It is possible.

The heating element 8 is stretched around the bottom outer periphery of the inner container by means of a band heater.

The temperature regulator 9 consists of a cylindrical thermostat or a thermal reed switch, and as shown in FIG. A terminal connection part 26 having a diameter smaller than the diameter of the temperature sensing part 25 is provided at the upper part, and a pair of terminals electrically connected to the contacts in the temperature sensing part are provided at the upper end thereof. The temperature sensing portion of the temperature regulator has a diameter smaller than the diameter of the guide hole 24 of the mounting bracket 12.

Reference numeral 27 denotes a presser metal fitting, which is made of a thin metal plate, as shown in FIG. 3, and has a substantially U-shaped cutout groove 28 extending inward from the outer end. The length of the straight portion 28a and the diameter of the semicircular arc portion 28b of the notch groove 28 of this presser metal fitting are smaller than the diameter of the temperature sensing portion 25 of the temperature controller, and the terminal connecting portion 26
cut larger than the diameter of the Screw holes for screwing into the mounting fitting 12 are bored at both left and right ends of the presser metal fitting 27 centering on the cutout groove 28 .
Reference numeral 29 denotes screws that are inserted into screw holes at both left and right ends of the presser metal fitting 27 and screwed onto the mounting metal fitting 12.

When installing the temperature regulator 9, first loosely fit the temperature sensing part 25 of the temperature regulator into the guide hole 24 of the mounting bracket 12, and then insert the terminal connection part 2 of the temperature regulator.
6. Insert the notch groove 28 of the presser metal fitting 27 into the outer diameter of the presser fitting 27, insert the circumferential wall forming the semicircular arc-shaped portion 28b of the notch groove, and with the lower surface of the circumferential wall in contact with the upper circumferential surface of the temperature sensing part 25, Presser metal fitting 2 with screw 29
7 is attached to the mounting bracket 12, and the temperature regulator 9 is fixed within the guide hole of the mounting bracket.

30 is a temperature fuse, and 31 is a mounting plate that relays lead wires from terminals of the temperature fuse, temperature controller, heating element, lamp, plug, etc., and is connected to an insulator fixed to the mounting angle 11.

The bottom member 10 includes a ring-shaped bottom ring 41 that contacts the lower end of the outer case, and a bottom plate 4 that closes the opening of the bottom ring.
It consists of 2.

The bottom plate 42 is formed into a disk shape, and its outer periphery is in contact with the bottom ring, and the mounting angle 1 of the inner container is fixed with screws.
1 to tighten the inner container and outer case between the bottom ring and the drainage member.

<Effects of the invention> In the present invention, the presser metal fitting can be fixed to the mounting metal fitting with the temperature sensing part of the temperature regulator inserted into the guide hole of the mounting metal fitting, so it can be easily and smoothly assembled. Work efficiency can be greatly increased. Furthermore, since the upper peripheral end of the temperature sensing part of the temperature regulator is held by the holding metal fitting and the body of the temperature sensing part is held by the guide hole of the mounting fitting, the temperature regulator can be set stably and reliably. .

Furthermore, the upper circumferential surface of the temperature sensing portion of the temperature regulator inserted into the guide hole of the mounting bracket protrudes beyond the upper surface of this guide hole, and in this state, both left and right ends of the notch groove of the holding bracket are fixed to the mounting bracket. As a result, the lower end surface of the temperature sensing portion reliably comes into contact with the bottom of the inner container, allowing the temperature regulator to function satisfactorily.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view of an embodiment of the present invention, Fig. 2 is a perspective view showing a partially installed state of the embodiment of the present invention, and Fig. 3 is a longitudinal sectional view of an embodiment of the present invention.
The figure is an exploded perspective view showing the main parts of the present invention. 1...Electric pot, 3...Inner container, 8...Heating element, 9...Temperature controller, 11...Mounting angle, 12...Mounting bracket, 24...Guide hole, 25
...temperature sensing section, 27...presser fitting, 28...notch groove.

Claims (1)

[Scope of utility model registration request] A heating element that heats the liquid in the inner container is attached to the outer circumference of the lower part of the inner container, and a mounting bracket is spot-welded to the bottom of the inner container. A cylindrical temperature sensing part is provided, and a temperature regulator is provided to detect the temperature inside the inner container and control the energization to the heating element, and the temperature regulator is fixed to the mounting bracket via the holding bracket. In the pot, a guide hole through which the temperature sensing part of the temperature controller can be inserted is bored in the center of the mounting bracket, and a guide hole is made between the mounting bracket and the bottom of the inner container at a height higher than the temperature sensing part of the temperature controller. At the same time, a substantially U-shaped notch groove is provided inward from the outer end of the presser metal fitting, and the lower end of the circumferential wall forming the semicircular arc portion of the notch groove is placed above the temperature sensing part of the temperature controller. The lower end surface of the temperature sensing portion is inserted through the guide hole of the mounting bracket to abut the bottom of the inner container, and both left and right ends of the notch groove of the holding bracket are fixed to the mounting bracket. Electric pot.