JP3234910B2 - High frequency cooking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-frequency heating apparatus such as a microwave oven used in ordinary households, and more particularly to a high-frequency heating apparatus which simplifies a process of attaching a door to an apparatus body in an automated assembly process. It concerns the device.

[0002]

2. Description of the Related Art Conventionally, installation of a door of a vertical opening type microwave oven has a problem that an assembling process is complicated and it is difficult to simplify an automated assembling process. As a prior art which has taken a solution to this problem, for example, Japanese Unexamined Patent Publication No.
JP-A-221573 discloses that each part constituting the door opening / closing mechanism is unitized, and once the door is mounted on the apparatus body in the assembly process, the door cannot be removed unless the apparatus body itself starts disassembly. It is disclosed that the door is assemblable from only one direction in addition to such a structure, thereby facilitating automated assembly.

FIG. 12 shows a general vertical opening type high frequency heating cooking apparatus. In this figure, the device body 1
A door 2 that is vertically open, that is, can be opened and closed in the vertical direction, is attached to the front surface of the heating chamber 3 provided in the first compartment. An upper square hole 15a for inserting an arm member 5A for regulating the opening angle of the door 2 and a lower square hole for inserting a hinge member 6A for supporting the door 2 so that the door 2 can be opened and closed are formed in the heating chamber front plate 1b constituting the heating chamber 3. 15b are provided.

FIG. 13 shows the embodiment disclosed in the above prior art example, in which the unitized arm member 5A and spring member 9 are attached to the apparatus main body 1 and immediately before the door 2 is attached. As shown in this figure, a hinge pin 11 and an arm pin 12 that are D-cut on both sides are provided at the lower end on the inner surface side of the door 2. Further, the arm member 5A has a temporary supporting claw 21 at a rear portion, and one edge is rolled and supported by the roller 10 attached to the hinge member 6A.
The temporary support claws 21 are temporarily fixed by being hooked on a temporary support receiver 22 provided on the substrate of the hinge member 6A.

In this temporarily fixed state, a temporary unit structure in which the hinge member 6A for supporting the door 2, the arm member 5A and the spring member 9 are unitized is fixed to the bottom plate 19 of the apparatus body 1, and the arm member 5A is hinged. 6A roller 10
Is supported by the temporary support receiver 22 of the hinge member 6 </ b> A, and is always urged by the spring member 9 in the closing direction of the door 2. The door 2 is attached to the opening of the heating chamber 3 by attaching the hinge pin 11 through an insertion path 23 provided at the distal end of the hinge member 6A.

[0006] From the temporarily fixed state of the arm member 5A, the door 2
Is rotated, the temporary support claws 21 drop off from the temporary support receivers 22, whereby the base end of the arm member 5 </ b> A is lowered by the urging force of the spring member 9, and the arm member free end is set with the roller 10 as a fulcrum. The hook rises and the hook 5a formed at the free end of the arm member fits into the arm pin 12 provided on the door 2. In this state, even if the door 2 is fully opened, the rear protrusion 24 of the arm member hits the roller 10,
The opening angle of the door 2 is regulated.

In this state, the hinge pin 11 provided on the door 2 is prevented from falling off the hinge member 6A,
The arm member 5A is also constantly urged rearward downward by the spring member 9, so that the hook portion 5a is also prevented from coming off the arm pin 12, and the detachment of the door 2 after the attachment is prevented. Thus, in the above prior art example, the door 2
Can be assembled from the front-direction, so that there is an advantage that the mounting of the door 2 to the apparatus main body 1 can be easily automated.

[0008]

However, in the configuration of the above prior art example, the following problems occur in the temporary unit structure of the hinge member 6A, the arm member 5A and the spring member 9 before being incorporated into the apparatus main body 1. Have.

First, in the above-mentioned temporary unit structure, the spring member 9 can always be mounted only in an arrangement in which a pulling biasing force is applied to the arm member 5A in an oblique direction. The support of the temporary support pawl 21 on the temporary support receiver 22 of the hinge member 6A is uncertain, and there is a possibility that the engagement may be released during the process from the transportation of the unit to the end of assembly.

That is, if the spring member 9 pulls the arm member 5A in the vertical direction, the direction of the force acting on the temporary support claws 21 of the arm member 5A is perpendicular to the temporary support receiver 22 of the hinge member 6A. Therefore, the temporary support claws 21 can be reliably supported by the temporary support receiver 22. However, if the spring member 9 is configured to pull the arm member 5A in the vertical direction, when the door 2 is to be turned, the urging force of the spring member 9 acts in a direction that prevents the door 2 from turning smoothly. In fact, in the structure of the above-mentioned prior art example, the spring member 9 must be mounted in an inclined posture as shown in FIG.

However, in this case, the arm member 5A
The horizontal component force to remove the temporary support claw 21 from the temporary support receiver 22 of the hinge member 6A is generated in the arm member 5A. As a result, as the mounting inclination angle of the spring member 9 becomes closer to horizontal, The arm member 5A is easily detached. Then, if any external force is applied to the arm member 5A in the united state from the longitudinal direction of the arm member even slightly, the temporary support claws 21 are immediately disengaged from the temporary support receiver 22 and the unit structure is disassembled. Will be lost.

Second, hinge member 6A, arm member 5A
The purpose of unitizing the spring member 9 is to assemble the arm member 5A and the hinge member 6A in advance at the manufacturing site when the manufacturing site and the assembling site are separated from each other. However, in the unit structure of the above-mentioned prior art example, there is a high risk of disassembly even if a small external force is applied to the unit, so that the transport conditions and packing conditions become strict. Inevitably, there is an inconvenience that the unit must be handled with great care.

Third, when the above-mentioned unit structure is attached to the apparatus main body 1, the end of the arm member 5A is connected to the heating chamber front plate 1b.
After inserting the tip of the hinge member 6A into the upper square hole 15a and the lower end of the lower square hole 15b from the rear, the bottom of the hinge member 6A is fixed to the main body with a screw. At this time, when the arm member 5A is inserted into the square hole 15a of the heating chamber front plate 1b, if the arm member 5A interferes with the heating chamber front plate 1b, the arm member 5A is temporarily supported by the hinge member 6A.
2 in some cases, and in such a case, the assembly process of the unit structure is hindered.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has a structure in which a mechanism assembly (unit) of an arm member, a hinge member, and a spring member is not easily disassembled, so that a door is provided. It is an object of the present invention to provide a high-frequency heating and cooking device that simplifies the assembling process.

[0015]

According to the present invention, there is provided a high-frequency heating apparatus comprising: a main body having a heating chamber; an openable and closable door provided at an opening for taking in and out of the food in the heating chamber; An arm member that regulates a maximum opening angle between the arm member and an apparatus body; an arm member supporting roller that rolls on one edge of the arm member; and the door that is fixed to the apparatus body and swingably coupled to the apparatus body. A hinge member; and a spring member for urging the arm member in the closing direction of the door.

In order to achieve the above object, a temporary fixing pin is attached to the arm member, hinge member, and spring member through a temporary pivot hole formed in the arm member and the hinge member. And a mechanism assembly in which the spring member is stretched between spring engagement portions provided on the arm member and the hinge member, so that the mechanism member is fixed to the apparatus main body, and the door is attached to the apparatus body. The door can be securely mounted by temporarily fixing it to the apparatus main body from the front of the main body, turning it slightly, and then removing the temporary fixing pin.

In the above configuration, the temporary fixing pin is
A flange is formed at a central portion in the axial direction, and is a round shaft having a symmetrical shape with respect to the flange, and is configured to be removably inserted into a temporary pivot hole of the arm member and the hinge member, so that the flange is formed. One end is inserted into the temporary pivot hole of the hinge member, and the other end is inserted into the temporary pivot hole of the arm member to temporarily pivot these members. It can be made to function as a temporary fixing jig by extracting from the member. Further, the workability is improved because the temporary fixing pin has no directionality. Further, by setting the thickness of the flange to be substantially the same as the gap set between the hinge member and the arm member, the arm member and the hinge member are supported by the flange portion, thereby reducing backlash and tilting the arm member. Can be prevented.

In order to secure the connection between the arm member and the hinge member, one end of the temporary pivot hole of the arm member is larger than the outer diameter of the temporary fixing pin and smaller than the outer diameter of the flange portion. In order to make it easier to pull out the locking pin, it is desirable to form the other end side in a pseudo gourd shaped hole larger than the outer diameter of the flange of the temporary locking pin.

In the above configuration, the arm member supporting roller is normally rotatably supported by a hinge member. A switch for fixing a micro switch is provided at a position near the arm member supporting roller of the hinge member. By forming the mounting hole, the microswitch can also be fixed to the hinge member in advance and assembled.

Further, a hook for engaging with an arm pin provided on the door is formed at the tip of the arm member, and the end face of the hook has an inclined surface having a gradient substantially equal to the door rotation locus. When the door is engaged with the arm member, the inclination of the tip of the arm member and the rotation trajectory of the arm pin substantially coincide with each other, so that the arm pin moves along the inclination of the hook. The door can be securely connected to the apparatus main body. Further, by making the top of the hook substantially coincide with the rotation locus of the lower end of the arm pin, when the arm pin is rotated in the closing direction of the door, the arm reaches the top of the hook and is automatically moved to the top of the hook. It becomes possible to drop into the engagement recess.

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings. Note that the appearance and basic functions of the high-frequency heating cooking device according to the present embodiment are common to those of the general high-frequency heating cooking device shown in FIG. Also,
In this embodiment, portions having the same configuration and operation as those of the above-described conventional example are denoted by the same reference numerals.

FIGS. 1 to 4 show a unitized mechanical assembly in the course of assembling it into the apparatus main body and a state in which the unit is mounted. FIG. 1 shows a state in which a door is mounted, FIG. 2 shows a state in which the door is closed, and FIG. FIG. 4 shows the door in the middle of assembly. FIG. 1
4, reference numeral 1 denotes an apparatus main body, 2 denotes a door, and an opening 4 for taking food in and out is formed on a front surface of a heating chamber 3 provided in the apparatus main body 1. Door 2
Is attached to open and close freely. The door 2 is provided with left and right arm members 5A and 5B for regulating the maximum opening angle between the door 2 and the apparatus body 1.
And right and left hinge members 6A and 6B fixed to the apparatus main body 1 and swingably connecting the door 2 to the apparatus main body 1. The door 2 is connected to the apparatus main body 1.

FIG. 5 shows the left hinge member 6A, and FIG. 6 shows the mechanical assembly of the left hinge member 6A, the left arm member 5A and the spring member 9, respectively. 7 shows a right hinge member 6B, and FIG. 8 shows a mechanical assembly of the right hinge member 6B, the right arm member 5B and the spring member 9, respectively. Since the left hinge member 6A is mounted on the left side of the door 2 and the right hinge member 6B is mounted on the right side of the door 2, the left hinge member 6A is usually formed in a partially different shape, but has a common function. Representatively, the left hinge member 6A will be described.

As shown in FIGS. 5 and 6, the left hinge member 6A is formed in a substantially L-shape when viewed from the front, and a mounting piece 6a bent at the lower end is provided with a screw 7 on the bottom plate 1a of the apparatus main body 1. (See FIG. 1). 6b is a screw insertion hole formed in the mounting piece 6a in advance.

L-shaped upright piece 6c of left hinge member 6A
A temporary pivot support hole 6d is formed in the upper end of the vertical portion of the vertical support hole, and a temporary fixing pin 8 to be assembled as described later is fitted into the temporary pivot support hole 6d and pivotally supported. Further, the shape of the temporary pivot support hole 6d is formed to have a diameter from which the temporary fixing pin 8 can be inserted and removed. On the other hand, a hook portion 6e as a spring engaging portion for locking one end side of a spring member 9 formed of a tension spring is formed at the end of the horizontal portion of the L-shaped upright piece 6c.

An arm member support roller 10 is rotatably supported at a bent portion of the L-shaped upright piece 6c below the temporary pivot support hole 6d. This arm member supporting roller 10
Is a pulley provided with a V-groove on the outer peripheral edge and is usually made of a resin material. As shown in FIG. 5 (B), a metal pin inserted through the roller shaft is provided on the left hinge member 6A. 10a is inserted in the shaft hole 6f of the member 6A, and is rotatably attached by caulking the tip.

The left hinge member 6A is formed with a hinge piece 6f protruding from the side of the L-shaped upright piece 6c. A hinge pin provided at the lower end of the door 2 at the tip of the left hinge piece 6g. 11 (see FIG. 4) is provided with a hinge hole 6h into which is fitted.

FIG. 9 shows the temporary fixing pin 8. The temporary fixing pin 8 is a round shaft having a flange 8a at the center in the axial direction, and is formed symmetrically with respect to the flange 8a. The hinge member 5A is inserted into and removed from the provisional pivot hole 6d of the hinge member 5A. Further, the flange portion 8a has a thickness substantially equal to the gap set when the left hinge member 6A and the left arm member 5A are mounted, so that the flange portion 8a functions to prevent slippage when assembled. Has become.

FIG. 10 shows the left arm member 5A, and FIG. 11 shows the right arm member 5B. Since the left arm member 5A is mounted on the left side of the door 2 and the right arm member 5B is mounted on the right side of the door 2, the left arm member 5A is usually formed in a partially different shape, but has a common function. ,
The left arm member 5A will be described as a representative.

The left arm member 5A has a hook 5a at one end which is engaged with the arm pin 12 (see FIG. 4) of the door 2, and a spring engagement portion which is engaged at the other end with the other end of the spring member 9. Hook portions 5b are formed respectively.

A temporary pivot hole 5c is formed substantially at the center in the length direction of the left arm member 5A. The temporary pivot holes 5c has one end portion 5c ₁ of the diameter prefixed pin 8 is readily pluggable appropriate pore size and so as to temporarily fixed pin 8
Larger than the shaft portion 8b outer diameter, and is set smaller than the collar portion 8a outside diameter as the flange portion 8a can not be pulled out, the flange portion 8a of the diameter of the other end portion 5c ₂ is temporarily fixed pin 8 easily The outer diameter of the flange portion 8a is set larger than the outer diameter of the flange portion 8a, and is formed in a substantially gourd-shaped irregular hole as a whole.

The left and right arm members 5A, 5B having the above-described structure,
The left and right hinge members 6A, 6B, and the spring member 9 are used as a left and right unit as shown in FIG. 6 and FIG. Unitized.

Next, the assembling sequence of the left unit will be described. First, the temporary pivot hole 6 of the left hinge member 6A is first described.
One shaft 8b of the temporary fixing pin 8 is inserted into d. Next, a temporary fixing pin 8 is inserted into the temporary pivot hole 5c of the left arm member 5A.
The other shaft 8b is inserted. Third, left hinge member 6
When the left arm member 5A is placed in the V groove of the arm member supporting roller 10 of A and the lower edge of the left arm member 5A is rolled, as shown in FIG. It is inserted so as to be sandwiched between the member 6A and the left arm member 5A. As a result, the flange portion 8a is connected to both 5A,
It serves as a stopper for holding the set gap of 6A.

Finally, the other end of the spring member 9 is locked to the other end hook 5b of the left arm member 5A, and one end of the spring member 9 is hooked to the hook 6e of the left hinge member 6A. Stop. As a result, the left arm member 5A is urged by the spring member 9 in the closing direction of the door 2 at the time of completion of the assembly of the high-frequency heating cooking device performed thereafter. By the above procedure, the left arm member 5A, the spring member 9, and the left hinge member 6A are integrated.

The right arm unit 5B, the right hinge member 6B, and the spring member 9 are assembled together in the right unit by the same process procedure as that of the left unit. In this case, the difference from the left unit is the right hinge unit. The member 6B has a micro switch 1 for door opening detection in advance.
3 is attached. That is, as shown in FIG. 7, a switch mounting piece 6i is formed integrally with an L-shaped upright piece 6c at a position near the arm member supporting roller 10 in the right hinge member 6B.
i is provided with a switch mounting hole 6j.

Then, the microswitch 13 is fixed to the switch mounting hole 6j with a screw 14. By attaching the micro switch 13 to the right hinge member 6B in advance in this way, it is possible to perform the attachment of the micro switch 13 at the manufacturing site, and the assembly process of the entire high-frequency heating and cooking device is simplified.

In the left and right units assembled as described above, the tension force of the spring member 9 is supported by the temporary fixing pin 8, and the hinge members 6A, 6B and the arm members 5A, 5B are firmly connected. Accordingly, as shown in FIG. 3, even when an unnecessary external force is applied to the arm members 5A and 5B from the longitudinal direction of the arm members,
The arm members 5A and 5B do not come off from the hinge members 6A and 6B because the temporary fixing pins 8 provide protection.

The arm members 5A and 5B are fitted into the V-grooves of the arm member supporting roller 10, and the temporary fixing pins 8 are inserted into the arm members 5A and 5B. Even if an external force is applied from the axial direction, the arm members 5A and 5B
A, 6B. Further, the arm members 5A, 5B
The gap between the hinge members 6A and 6B and the thickness of the flange 8a of the temporary fixing pin 8 are set to be substantially equal to each other, so that the arm members 5A and 5B are prevented from swaying and even in the assembled state. Thus, it is possible to be surely joined with little rattling.

As described above, the hinge members 6A and 6B, the arm members 5A and 5B, and the spring member 9 are unitized as a mechanical assembly, so that it is possible to assemble the parts in advance at a parts manufacturing plant, and the unit is formed. Since the assembled product cannot be easily disassembled, even if a small external force is applied to the assembled product during transportation or when assembling the entire high-frequency cooking device, each component is disassembled. Nothing.

Next, the left side unit will be described with reference to the procedure for mounting the mechanical assembly having the above-mentioned structure to the apparatus main body 1. As shown in FIG. 1, a front plate constituting the heating chamber opening 4 of the apparatus main body 1 will be described. A square hole 15 is formed in 1b. The distal end of the left hinge member 6A penetrates the square hole 15 and is incorporated. The left hinge member 6A is fixed to the bottom plate 1a of the apparatus main body 1 with the screw 7 as described above.

On the other hand, left and right door hinge members 16 are fixed to both lower corners of the door 2 by welding or screwing. The door hinge member 16 is formed by bending a thick plate material having a plate thickness of 1 to 3 mm into a substantially L-shape. The hinge pin 11 is provided at the lower part of the outer surface, and the arm pin 12 is provided at the upper part by a method such as caulking. It is fixed.

As shown in FIG. 4, when assembling the left arm member 5A, the door 2 is brought close to the left hinge member 6A fixed to the apparatus main body 1, and the hinge pin 11 of the door hinge member 16 is first moved to the hinge of the left hinge member 6A. Insert into hole 6h. Sonouede When rotating the door 2 in the closing direction, the arm pin 12 of the door 2 is in contact with the tip end surface 5a ₁ of the hook part 5a of the left arm member 5A.

When the door 2 is further closed, the hook tip end surface 5
The arm pin 12 goes up along a ₁ , and finally the arm pin 12 climbs over the peak of the tip 5 a ₂ . Then, the arm pin 12 is depressed engagement valley 5a ₃ of the left arm member 5A. Thus, the door 2 is securely connected to the left arm member 5A. In FIG. 4, the left arm member 5
The state immediately before A is hooked is shown.

In this state, the hook portion 5a of the left arm member 5A is pulled upward by the elastic force of the spring member 9 with the arm member supporting roller 10 as a fulcrum. At this time, the position of the hook 5a is higher than the position shown in FIG. Thus, the shape of the tip end surface 5a ₁ of the hook part 5a of the left arm member 5A is door rotation trajectory and with are formed to be substantially the inclined surface of the same slope, the hook portions 5a tip apex portion 5a ₂ Is formed so as to be located substantially on the rotation locus of the lower end portion of the arm pin, whereby the door 2 and the left hinge member 6A of the apparatus main body 1 are connected.

Next, the door 2 is moved in a direction for slightly opening.
As the door 2 moves, the left arm member 5A also moves. At this time, the temporary fixing pin 8 inserted into the temporary pivot hole 6d of the left hinge member 6A does not move, but the temporary pivot hole 5c of the left arm member 5A moves with the movement of the left arm member 5A. Along with this movement, temporarily fixed initial position of the pin 8 was the one end side small diameter portion 5c ₁ of the provisional pivot hole 5c, the position is the other end side large diameter portion 5c of the temporary pivot hole 5c by the movement of the door 2 Go to ₂ . Therefore, at a location on the other end side large diameter portion 5c _2, tentatively pivot hole 5c of both the temporary fixing pins 8 and pulled out from 6d. When the temporary fixing pin 8 is removed, the left arm member 5A has no obstruction, so that the door 2 can freely rotate as in the related art.

The removed temporary fixing pins 8 become unnecessary for the apparatus main body 1, but the unnecessary temporary fixing pins 8 can be used again as a jig for the next production. That is, the temporary fixing pin 8 can be used as a work rotation jig in the process. In this case, it is more convenient if the temporary fixing pins 8 are made of metal having excellent wear resistance.

After the left unit is attached to the apparatus main body 1, the temporary fixing pins 8 are not provided, so that there is no difference from the conventional product. Therefore, when removing the door 2 in a maintenance service or the like, the same operation as in the related art can be performed. That is, first, after removing the spring member 9, the left arm member 5 </ b> A is removed from the arm pin 12. Then, the door 2 can be freely opened beyond the maximum opening / closing angle. Next, when the door 2 is opened above the inclined surface 6k of the left hinge member 6A and the door 2 is slid in the direction opposite to the direction at the time of insertion, the door 2 comes off.

The procedure for attaching and detaching the right unit to and from the apparatus body 1 can be performed in the same manner as in the case of the left unit.

[0049]

As described above, according to the first aspect of the present invention, the arm member, the hinge member, and the spring member are passed through the temporary pivot holes formed in the arm member and the hinge member. A temporary fixing pin is attached to the arm member and the hinge member, and a spring assembly is provided between the spring engaging portions.
By thus assembling the arm member, the hinge member, and the spring member, simplification of the process can be realized.

According to the second aspect, the temporary fixing pin is formed at the axial center thereof with a flange having a thickness substantially equal to the gap set between the hinge member and the arm member. As a round shaft having a symmetrical shape is configured so as to be freely inserted into and removed from the temporary pivot holes of the arm member and the hinge member, the workability is improved because the temporary fixing pin has no directionality, and the arm member and the hinge are improved. The member is supported by the flange portion to reduce backlash and prevent the arm member from tilting. Furthermore, it can be pulled out from the arm member and the hinge member at the end of the assembly and used as a temporary fixing jig.

According to the third aspect, the provisional pivot hole of the arm member is formed as a modified hole having one end larger than the outer diameter of the temporary fixing pin and smaller than the outer diameter of the flange, and the other end larger than the outer diameter of the flange. As a result, the connection between the arm member and the hinge member can be ensured, and the temporary fixing pin can be easily pulled out. Thus, according to the second and third aspects, the arm member supporting roller of the hinge member is easily detached in the temporarily fixed state of the unit structure, and easily detached in the state of being attached to the set, and the workability is improved. Since the switch mounting hole to which the microswitch is fixed is formed in the vicinity, the microswitch can also be fixed to the hinge member in advance and assembled, and the process of assembling the apparatus body can be simplified. .

According to the fifth aspect of the present invention, the end surface shape of the hook portion which engages with the arm pin of the door provided at the tip of the arm member is formed on an inclined surface having substantially the same slope as the door turning locus. Moves along the inclination of the hook. Also,
Since the top of the hook is formed so as to be located substantially on the rotation locus of the lower end of the arm pin, when the arm pin is turned in the closing direction of the door, the top of the hook is reached and automatically reached. It is possible to drop the hook into the engagement recess. This makes it easy to assemble the door reliably and can promote automation.

[Brief description of the drawings]

FIG. 1 is a front view of a main part schematically showing a high-frequency heating cooking device according to an embodiment of the present invention when a door is mounted.

FIG. 2 is a side view of a main part showing a state in which a door is closed.

FIG. 3 is a partially enlarged side view showing a partly assembled state of the door.

FIG. 4 is a front view of the main part.

5A and 5B show a left hinge member, FIG. 5A is a front view, and FIG.
Is a side view

FIG. 6 is a front view showing a mechanical assembly of a left hinge member, a left arm member, and a spring member.

7A and 7B show a right hinge member, FIG. 7A is a front view, and FIG.
Is a side view

FIG. 8 is a front view showing a mechanism assembly of a right hinge member, a right arm member, and a spring member.

FIG. 9 shows a temporary fixing pin, (A) is a plan view, and (B) is a front view.

FIG. 10 shows a left arm member, (A) is a plan view,
(B) is a front view

FIG. 11 shows a right arm member, (A) is a plan view,
(B) is a front view

FIG. 12 is a perspective view showing a door of a general high-frequency cooking device with a slightly opened door;

FIG. 13 is a perspective view of a main part showing a prior art example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Device main body 1a Bottom plate 1b Front plate 2 Door 3 Heating chamber 4 Opening 5A Left arm member 5B Right arm member 5a Hook portion 5a ₁ Tip end surface 5a ₂ Tip top 5a ₃ Valley 5b Hook portion 5c Temporary pivot hole 5c ₁ One end part 5c _{2 The} other end part 6A Left hinge member 6B Right hinge member 6a Mounting piece 6b Screw insertion hole 6c L-shaped upright piece 6d Temporary pivot support hole 6e Hook 6f Shaft hole 6g Hinge piece 6h Hinge hole 6i Switch Mounting piece 6j Switch mounting hole 6k Inclined surface 7 Screw 8 Temporary fixing pin 8a Flange 8b Shaft 9 Spring member 10 Arm member support roller 11 Hinge pin 12 Arm pin 13 Micro switch 14 Screw 15 Square hole 16 Door hinge member 24 Screw

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) F24C 7/02 521 F24C 15/02

Claims (5)

(57) [Claims] 1. An apparatus main body provided with a heating chamber, an openable and closable door provided at a food material taking-out opening of the heating chamber,
An arm member that regulates a maximum opening angle of the door with the apparatus main body, an arm member supporting roller that rolls on one edge of the arm member, and the door that is fixed to the apparatus main body and swings the door to the apparatus main body. In a high-frequency heating / cooking apparatus including a hinge member that is freely coupled and a spring member that urges the arm member in a closing direction of the door, the arm member, the hinge member, and the spring member include the arm member and the hinge. A temporary fixing pin is mounted through a temporary pivot hole formed in the member, and the spring member is stretched between spring engaging portions provided in the arm member and the hinge member. A high-frequency heating / cooking apparatus characterized by being configured as a mechanical assembly. 2. A temporary fixing pin, wherein a flange having a thickness substantially equal to a gap set between a hinge member and an arm member is formed at a central portion in an axial direction, and has a symmetrical shape with respect to the flange. The high-frequency heating and cooking apparatus according to claim 1, wherein the high-frequency heating and cooking apparatus is a shaft, and is configured to be freely inserted into and removed from a temporary pivot hole of the arm member and the hinge member. 3. The temporary pivot hole of the arm member is formed in a modified hole having one end larger than the outer diameter of the temporary fixing pin and smaller than the outer diameter of the flange, and the other end larger than the outer diameter of the flange. 2. The high-frequency heating cooking device according to 1. 4. An arm member supporting roller is rotatably supported by a hinge member, and a switch mounting hole to which a microswitch is fixed is formed in a portion of the hinge member near the arm member supporting roller. The high-frequency heating cooking device according to claim 1. 5. An arm pin is provided on the door, and a hook engaging with the arm pin is provided at the tip of the arm member, and the end face of the hook has a slope substantially equal to the door turning locus. 2. The high-frequency heating and cooking apparatus according to claim 1, wherein the upper surface of the hook portion is formed substantially on a rotation locus of the lower end portion of the arm pin.