JP2000173761A - Mounting structure of resin member to high-frequency heating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mounting member that is inexpensive, economical and superior recycling properties by allowing a resin member mounted to its main body to be easily mounted and dismounted, in relation to mounting components of a high-frequency heating device. SOLUTION: This mounting member is provided with a main body 5, mounting holes 19 formed in the main body 5, a cut and raised part 22 formed in the vicinity of the mounting holes 19, a resin member 16 engaged with the main body 5, claw parts 17 which are engaging parts formed on the resin member 16 and mounted to the main body 5, and a projecting part 20, and it also has a structure wherein the claw parts 17 are inserted into the mounting holes 19 formed in the main body 5, and force is so applied to the projecting part 20 that it can overstride and be engaged with the cut and raised part 22 formed in the vicinity of the mounting holes 19. This enables the resin member 16 to be mounted and dismounted easily.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for attaching a resin member to a high-frequency heating device.

[0002]

2. Description of the Related Art Conventionally, a mounting structure of a resin member of this kind to a main body or the like is generally as described in Japanese Patent Application Laid-Open No. 2-187533. As shown in FIG. 5, this device has a pair of claws 2 having a spring property and projecting outward from a holder main body 1 and extending outwardly, which are inserted into holes 4 provided in a side wall 3 of a heating chamber and fixed. Had become.

[0003]

However, in the conventional resin member mounting structure, since the claw 2 is caught and fixed in the hole 4, the holder body 1 can be easily moved from the heating chamber side wall 3 by pushing the claw 2 inward. For example, when used in a high-frequency heating device, there is a problem that the claw 2 cannot be projected outside the device.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a main body, a mounting hole provided in the main body, a cut-and-raised portion provided in the vicinity of the mounting hole, and a resin member engaged with the main body. Part, a projection is integrally provided in the vicinity corresponding to the cut-and-raised portion, the engaging portion is inserted into the mounting hole, a force is applied to the projection, and the cut-and-raised portion provided near the mounting hole is overcome. The end is brought into contact with the end of the projection.

[0005] According to the above invention, the resin is cut and raised and the movement is restricted. Therefore, when disassembling and repairing, the protrusion is operated in the same manner as the mounting operation to easily get over the hitting portion and easily remove the resin part. Becomes possible.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention relates to a main body, a mounting hole provided in the main body, a cut-and-raised portion provided in the vicinity of the mounting hole, a resin member formed of a resin to be engaged with the main body, An engaging portion for engaging with the main body provided on the member and a projecting portion are integrally provided, the engaging portion is inserted into the mounting hole, and a force is applied to the projecting portion to deform a part of the resin member so that the cutting is performed. It is engaged by overcoming the raising.

[0007] Further, a main body, a blade attached to a fan motor, a partition plate provided on an outer peripheral portion of the blade and engaging with the main body, a mounting hole provided in the main body, and a cut provided near the mounting hole. Raising, a claw provided on the partition plate, and a projection provided on the partition plate corresponding to the cut and raised portion, the claw is inserted into the mounting hole, and a force is applied to the protrusion to apply the force. This is to engage over the cut-and-raised portion.

[0008] Since the projection is engaged with the cut-and-raised portion, it is not easily detached normally. However, it is easy to work by pressing and removing the projection, and the structure is simple and inexpensive. Also, it cannot be easily removed from the outside of the main body.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 1 is a perspective view showing the structure of a high-frequency heating apparatus according to Embodiment 1 of the present invention.

The main body 5 is made of a sheet metal, and has a magnetron 6 as a heating means inside the main body 5, and irradiates a heating chamber 7 with microwaves through a waveguide 8 to heat the food. The high voltage transformer 9 supplies power to the magnetron 6. A fan motor 10 is provided for cooling the magnetron 6 and the high-voltage transformer 9, and the fan motor 10 supports a blade 11. A partition plate 4 made of a heat-resistant synthetic resin member such as PP (polypropylene) provided on an outer peripheral portion of the blade 11 in order to increase the wind pressure of the cooling air 13 from the air intake hole 12a when the blade 11 rotates. An air guide 14 made of a heat-resistant synthetic resin such as PP (polypropylene) is provided to guide the cooling air 13 through the magnetron 6 and into the heating chamber 7. The cooling air 13 is sucked in from the intake hole 12a behind the fan motor 10, passes through the magnetron 6, and the air guide 14, flows into the heating chamber 7 from the intake hole 12b, and flows out through the exhaust hole 15 of the heating chamber. In general, the partition plate 16 and the air guide 14 are fixed with several screws. However, in order to reduce the cost of parts and the number of assembling steps, a configuration in which the number of screws is reduced is required.

[0012] However, the structure in which the number of screws is reduced often complicates the structure of the resin member, and there is a contradictory problem that when the screw is fitted, it is easy to insert but difficult to remove.

Furthermore, when engaging from the inside of the main body 5 to the outside, the structure that easily comes off from the outside of the main body 5 is not allowed in design, so that the structure becomes complicated when screws are not used.

To solve such a problem, FIG. 2 shows a partition plate 16 and a main body 5 which are resin members according to the first embodiment of the present invention.
The partition plate 16 has a claw portion 17. The claw portion 17 is configured to be inserted into a square hole 19 provided in the back plate 18 of the main body 5, slide downward, and catch. The protrusion 20 provided near the claw 17 is formed at right angles to the sliding direction of the claw 17. The claws 17 are attached to the back plate 18 of the main body 5.
When inserted into the square hole 19, the notch 21 of the partition plate 16 provided in the vicinity of the projection 20 does not initially contact the cut-and-raised portion 22 of the back plate 18 of the main body 5. When the partition plate 16 slides downward, it is cut and raised.
The reference numeral 2 passes from the notch 21 of the partition plate 16 to the surface of the projection 20 which contacts the main body 5. At that time, the surface of the projection 20 that comes into contact with the main body 5 undergoes elastic deformation, and when the sliding is completed, the cut-and-raised surface 23 of the cut-and-raised 22 hits the end face 24 of the projection 20 of the partition plate 16 and the partition plate 16 Will not come off. In other words, the end face 24 of the projection 20 hits the cut-and-raised surface 23, so that the cut-and-raised 22 prevents the partition plate from shifting upward and restricts the movement of the partition plate 16.

Further, even if it is shifted to the front, rear, left and right, the claw portion 17 hits the square hole 19 and the partition plate 16 does not come off.

Further, even when the partition plate 16 is to be removed from the outside of the main body 5, since the projections 20 are inside the main body 5, elastic deformation such that the cut-and-raised portion 22 can be easily overcome cannot be caused. Therefore, the partition plate 16 cannot be easily removed from the outside of the main body 5.

Next, when the partition plate 16 is to be removed, the partition plate 16 is lifted upward while pressing the projection 20 downward. At this time, the surface of the projection 20 that is in contact with the main body 5 undergoes elastic deformation, and a gap is formed upward. The gap between the projection 20 and the back plate 18 of the main body 5 is cut and raised, and the cut and raised height 25 or more is 25 or more. When opened, the partition plate 16 can be easily removed without catching.

Further, since the cut-and-raised portion 22 is formed in a semicircular shape, the cut-and-raised portion 22 is provided at the time of attachment and detachment.
Is not easily crushed.

FIG. 3 is a cross-sectional view showing the mounting state of the partition plate 16 and is a cross-sectional view taken along the line BB in FIG. The two-dot chain line in the figure indicates a state in which the protrusion 20 is pressed from above when removing. When the protrusion 20 is pressed from above, the root of the protrusion 20 undergoes elastic deformation, and the gap with the main body 5 increases.

FIG. 4 is a sectional view showing the state of attachment of the partition plate 16 and is a sectional view taken along the line CC in FIG. The claw portion 17 is formed in a U-shape, and is hooked on the square hole 19 of the back plate 18 of the main body 5. The two-dot chain line indicates a state where the claw portion 17 is inserted into the square hole 19 at the time of mounting, and a state where the claw portion 17 is slid downward after insertion is indicated by a solid line.

Next, the operation and operation will be described. First, when attaching the partition plate 16, the claw portion 1 of the partition plate 16
7 is inserted into a square hole 19 provided in the back plate 18 of the main body 5, slid downward and hooked. When the claw 17 slides, the surface of the projection 20 provided near the claw 17 that contacts the notch 21 of the partition plate 16 and the main body 5 of the protrusion 20 passes through the cut-and-raised portion 22. At this time, the root of the projection 20 gets over while causing elastic deformation. When the slide is completed, the cut-and-raised surface 23 of the cut-and-raised portion 22 hits the end face 24 of the projection 20 of the partition plate 16, and the partition plate 16 is fixed.

Next, when the partition plate 16 is to be removed, the partition plate 16 is lifted while pushing the projection 20 downward. At this time, the root of the protrusion 20 undergoes elastic deformation, and a gap is formed upward. Root of projection 20 and body 5
When the gap with the back plate 18 is opened to the cut-and-raised height 25 or more of the cut-and-raised portion 22, the partition plate 16 moves upward because the catch is eliminated. Cut-and-raised 22 is projected portion 20
Reaches the notch 21 of the partition plate 16. At this time, the claw portion 17 of the partition plate 16 moves upwardly of the square hole 19 provided in the back plate 18 of the main body 5, and the claw portion 1 is moved.
When the lower portion 7 reaches the end face of the square hole 19, when the partition plate 16 is pulled forward, the partition plate 16 is detached from the back plate 18.

In this embodiment, the partition plate 16 is described as an example. However, since the partition plate 16 is located at a narrow outer peripheral portion with the blade 11, it is difficult to put a hand into a complicated configuration, and the work is difficult. It is hard to remove. In addition, it may be fixed using screws, but the number of assembling steps is increased, which is uneconomical. Further, the partition plate 16 does not support other parts with mechanical strength, and is not required to have mechanical strength.
It is effective to apply the present invention to the partition plate 16. Similarly, the lower portion of the partition plate 16 has this structure.

In this embodiment, the parts can be easily replaced at the time of replacing parts of the partition plate 16 or replacing the fan motor 10 and the blades 11, thereby shortening the working time.

In the case of recycling materials, the time required for the disassembling operation after product disposal is reduced, and the recyclability is improved.

Similar effects can be obtained with materials other than PP of this embodiment, such as ABS, PET, AS, and PC, by utilizing the elasticity of the material.

Although the description of the partition plate has been described in detail in this embodiment, it goes without saying that a similar configuration can be used for other members.

[0028]

As described above, according to the present invention, the simple structure is very economical, and the resin member can be easily removed, so that the repair time at the time of service and at the assembly factory can be saved. . Further, the resin member is not easily removed from the outside of the main body, and even if the product is discarded, the resin member can be easily removed at the time of material recycling, thereby improving recyclability.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating a configuration of a high-frequency heating device according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a state in which a resin member is attached to the main body.

FIG. 3 is a view showing a state in which a resin member is attached to the main body.
BB sectional view of

FIG. 4 is a view showing a state in which a resin member is attached to the main body.
CC sectional view of

FIG. 5 is a perspective view showing a mounting state of a conventional resin component.

[Explanation of symbols]

 5 Main body 16 Resin member (partition plate) 17 Claw 19 Mounting hole 20 Projection 22 Cut and raised

Claims (2)

[Claims] A main body; a mounting hole provided in the main body;
A cut-and-raised portion provided in the vicinity of the mounting hole, a member formed of a resin to be engaged with the main body, and an engaging portion with the main body provided on the resin member and a protrusion are integrally provided, and the engaging portion is A configuration for mounting the resin member to a high-frequency heating device that is inserted into the mounting hole, applies a force to the protrusion, deforms a portion of the resin member, and gets over and engages with the cut-and-raised portion. 2. A main body, a blade attached to a fan motor, a partition plate provided on an outer peripheral portion of the blade and engaging with the main body, a mounting hole provided in the main body, and a cut provided near the mounting hole. Raising, a claw portion provided on the partition plate, and a projection portion provided on the partition plate corresponding to the cut and raised portion, the claw portion is inserted into the mounting hole, and a force is applied to the projection portion to perform the cutting. A configuration in which a resin member is attached to a high-frequency heating device that engages over a raising member.