KR100735956B1 - Knob - Google Patents

Abstract

The present invention relates to an adhesive structure of a knob cover, and as a plurality of vents are penetrated through the front surface from the front surface of the main body constituting the knob, the cover is bonded to the front surface of the body via an adhesive, and the adhesive While the excess adhesive is discharged through the vent to maintain a constant bonding thickness of the main body and the cover, the air intervening between the main body and the cover and the adhesive is discharged through the vent and the bonding thickness of the main body and the cover In addition, the solvent is rapidly evaporated as the vapor of the solvent generated while the adhesive is solidified is discharged through the vent, and the adhesive is rapidly solidified, and the adhesive is quickly contacted with air through the vent. Oxidized and solidified to reduce adhesion time of the main body and the cover So will the.

Knob, cover, glue, vent

Description

Knob {KNOB}

1 is an exploded perspective view of a general knob.

2 is a cross-sectional view of a common knob when bonding.

3 is an exploded perspective view of the knob according to the present invention.

4 is a cross-sectional view at the time of bonding the knob according to the present invention.

5 is a perspective view of a microwave oven with a knob according to an embodiment of the present invention.

<Description of Major Symbols in Drawing>

10-microwave 20-knob

21-Body 22-Cover

30-Vent 40-Adhesive

50-air

The present invention relates to a knob that a user grips, rotates or presses, and particularly relates to an adhesive structure of a knob cover which is more easily attached to the front cover of the knob body and is more securely attached. .

In general, a product operated by a user such as a microwave oven or audio is provided with a button and a switch of various shapes for controlling the product, and the button includes a knob that the user grabs and turns or pushes the button.

Here, the knob is generally formed in a cylindrical shape to enable the rotation operation, and connected to the control plate and the rotating shaft of the product inside the control signal to the control plate by an electrode or the like rotated in accordance with the rotation of the knob. It is generally configured to convey.

In addition, the knob is configured to transmit a control signal to the control panel while the user is pressed in and pressurized while being inserted into the electrode while the electrode installed inside the knob is short-circuited with the electrode installed on the control panel of the product.

In addition, the knob may be further provided with a cover having a print formed therein to prevent appearance improvement and corrosion or contamination, or to display the operation and control of the knob, and the cover may be adhered to the main body of the knob through an adhesive. There was a case.

Here, the conventional knob is, as shown in Figures 1 and 2, the cover 22 having the same inner shape as the shape of the front surface of the main body 21 is bonded and fixed to the front surface of the cylindrical body 21, An adhesive 40 is interposed between the cover 22 and the main body 21, and the adhesive 40 is hardened to fix the cover 22 to the front of the main body 21.

The adhesive 40 is different depending on the material of the main body 21 and the cover 22, the adhesive 40 is generally formed of a resin material.

In addition, the adhesive 40 is formed of a polymer to give an adhesive force of the main body 21 and the cover 22, the polyvinyl acetate-based, phenol resin, urea resin, melamine resin, xylene resin, epoxy resin, etc. Used.

In addition, the adhesive 40 is used as a liquid by adding a solvent to the resin material, the solvent is used is chloroform (CHCL ₃ ) and the like is oxidized and evaporated.

Accordingly, the adhesive 40 is formed by mixing a resin with a solvent to form a liquid phase, stored in a sealed container, stored in an airtight container, removed from the closed container, and used to remove the oxidized and evaporated solvent. And the resin material of the liquid is solidified, and a part of the polymer resin is inserted into and fixed to both surfaces of the main body 21 and the cover 22, or a part of both surfaces of the main body 21 and the cover 22. It is common to insert and fix while melting.

Therefore, the adhesive 40 is applied to the front surface of the main body 21 or the inner surface of the cover 22, the cover 22 on the front surface of the main body 21 in the state in which the adhesive 40 is applied 1 or 2, when the fixed end is further extended in the direction of the main body 21 from the outer circumference of the cover 22, a part of the front surface and the outer circumference of the main body 21. In addition to the cover 22 is fitted in the adhesive 40 was solidified and bonded.

However, as described above, the front surface of the main body 21 and the inner surface of the cover 22 are formed to be in close contact with each other when the thickness of the applied adhesive 40 is excluded, but the adhesive 40 is not uniformly applied. Otherwise, when a larger amount is applied, the main body 21 and the cover 22 may not be joined as originally designed, and a lifting phenomenon may occur, resulting in a failure in joining the main body 21 and the cover 22. Since the main body 21 and the cover 22 which are thus defective cannot be reused of the adhesive 40, there is a problem in that both the main body 21, the cover 22, and the adhesive 40 have to be discarded.

In addition, as shown in FIG. 2 in the process of bonding through the adhesive 40 between the main body 21 and the cover 22 as described above, the main body 21, the cover 22 and the adhesive The air 50 may enter the empty space made of 40, and the air 50 is sealed in the body 21 and the cover 22, and the adhesive 40 is air 50 as a polymer. ), The air 50 is prevented from being escaped by being surrounded by the body 21, the cover 22, and the adhesive 40, and the air 50 is formed with its own volume. 21 and the cover 22 may not be in close contact with each other, and the main body 21 and the cover 22 may be pressed by an external pressure, and the air 50 may be unfolded and the adhesive 40 may be pushed out to the outside. A surface on which the adhesive 40 is not applied is formed between the main body 21 and the cover 22, and the surface of the surface on which the adhesive 40 is not applied is formed. Power is reduced there is a problem in that the body 21 and cover 22 to be easily leaving.

In addition, when a larger amount of adhesive 40 is applied between the main body 21 and the cover 22 than the fixed amount, the adhesive 40 having a predetermined thickness is unfolded and simultaneously unfolded due to its volume. And the adhesive agent 40, which escapes to the outside of the space between the cover 22 and the main body 21 and the cover 22, comes into contact with the air 50, and oxidizes or evaporates and rapidly solidifies. As it hardens, the adhesive 40 is added to the outside of the junction point of the main body 21 and the cover 22 so that the external appearance of the main body 21 and the cover 22 becomes unusable and the main body 21 is reduced. And the cover 22 and the adhesive 40 had to be disposed of all problems.

In addition, since the adhesive 40 interposed between the main body 21 and the cover 22 is blocked from contact with the air 50 due to the sealing of the main body 21 and the cover 22, the adhesive 40 As the solvent contained in the) is blocked from being oxidized to the outside and the solvent is blocked from being evaporated, thereby preventing the adhesive 40 from solidifying, the adhesion between the main body 21 and the cover 22 is impossible. Since the adhesive 40 is in contact with the small amount of air 50 due to the fine air 50 flowing, there is a problem in that the adhesion time between the main body 21 and the cover 22 is increased.

The present invention has been invented to solve the above-mentioned problems, the adhesive intervening more than necessary between the cover and the main body of the knob and the joint of the cover and the main body at the same time as the exit of the main body of the cover and the main body It is an object of the present invention to provide an adhesive structure of a knob cover in which a problem in that the joint thickness is increased or tilted is solved.

It is another object of the present invention to provide a knob cover and an air intervening between a cover and a main body of a knob to simultaneously exit the inside of the main body at the same time as the joining of the cover and the main body, thereby achieving a normal joining of the main body, the cover and the adhesive. The purpose is to provide an adhesive structure.

Still another object of the present invention is to provide an adhesive structure of a knob cover in which an adhesive interposed between the cover of the knob and the main body is brought into contact with external air to achieve rapid solidification of the adhesive, thereby shortening the assembly work time of the knob. Has its purpose.

The adhesive structure of the knob cover of the present invention for achieving the above object, in the knob consisting of the cover and the main body, a through-hole is formed in the front surface of the main body joined to the cover from the front surface of the main body to the inner surface It is characterized by.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In addition, the same reference numerals are denoted in the same portions as those of FIGS. 1 and 2 showing the conventional structure, and detailed description thereof will be omitted.

3 shows that the cover 22 and the main body 21 of the knob 20 according to the present invention are separated, and FIG. 4 shows the adhesive 40 between the cover 22 and the main body 21 according to the present invention. ) Is inserted and bonded, Figure 5 shows that the knob 20 according to the present invention is applied to the microwave oven 10.

According to the present invention, the main body 21 constituting the knob 20 and the cover 22 are bonded to the adhesive 40, and the excess of the adhesive 40 is leaked, and the adhesive 40 is exposed to the outside air. The vent 30 is formed in the main body 21 so as to solidify rapidly while contacting the 50.

The knob 20 includes a main body 21, a cover 22, and an adhesive 40.

The main body 21 is configured to be gripped and rotated by the user, and is connected through a terminal of the controller and a rotating shaft to deliver the user's turning operation to the controller.

In addition, the main body 21 is formed in a generally cylindrical shape to facilitate the turning operation of the user, in the present embodiment, the main body 21 is formed in a cylindrical shape connected via a rotating shaft to the control board, etc. The inside is hollowed out, and the front side is formed in a closed cylindrical shape while being opened on the inner side thereof.

The cover 22 is formed to form an inner surface corresponding to the front shape of the main body 21 to be attached to the front of the main body 21, in this embodiment the main body 21 is a cylindrical shape whose front is sealed As it forms and forms an image, the inside thereof is hollow so as to correspond to the front surface of the main body 21, and an inner side thereof is formed to form an open cylindrical shape.

In addition, the cover 22 may be formed to form a plate shape corresponding to the front shape of the main body 21 to be attached to the front of the main body 21, of course.

In addition, the cover 22 is attached to the front of the main body 21 to improve the appearance together with the main body 21, the front and outer peripheral portions of the main body 21 and the thickness of the cover 22 It can be made to form the outer shape of the main body 21 by forming the same thickness and recessed inward, the cover 22 is covered with the recessed portion.

The front and outer peripheral surfaces of the main body 21 are fixed in close contact with each other, and the front and outer peripheral surfaces of the main body 21 are joined to the cover 22 to maintain the appearance of the main body 21.

The adhesive 40 is bonded to the front surface of the body 21 and the inner surface of the cover 22 to be bonded to the front surface of the body 21 and the inner surface of the cover 22, respectively, the body 21 ) And cover 22 are formed.

In addition, the adhesive 40 is made of a liquid adhesive 40 mixed with a resin such as a phenol resin, urea resin, melamine resin, xylene resin, epoxy resin and a solvent such as chloroform, dextrose, the solvent As the resin is oxidized and evaporated, the resin is bonded and solidified on the surface of the bonding material.

In the present invention, a plurality of vents 30 are formed on the front surface of the main body 21 to which the adhesive 40 is applied and pressed and solidified.

The vent 30 is formed to penetrate from the front of the main body 21 to which the adhesive 40 is applied to reach the inner surface of the main body 21.

In addition, when the inside of the main body 21 is not hollow, the vent 30 is formed to penetrate from the front of the main body 21 to the rear of the main body 21.

Figure 5 shows that the knob according to the invention is applied to the time adjustment button or temperature control button of the microwave oven.

Next, it will be described that the cover and the main body of the knob of the present invention configured as described above are bonded to each other by an adhesive.

An adhesive 40 is applied to the front surface of the knob 20 body 21 or the inner surface of the cover 22 joined to the front surface of the body 21.

Here, the adhesive 40 is preferably applied to any one of the front surface of the body 21 and the inner surface of the cover 22, the adhesive to increase the adhesive force of the body 21 and the cover 22 Of course, the adhesive 40 may be applied to both the front surface of the body 21 and the inner surface of the cover 22.

When the cover 22 is bonded while the adhesive 40 is applied to the front surface of the main body 21, the front surface of the main body 21 and the inner surface of the cover 22 are in close contact with each other and the main body 21 is attached. The adhesive 40 applied to) is applied not only to the front surface of the main body 21 but also to the inner surface of the cover 22.

As the adhesive 40 applied to the front surface of the main body 21 and the inner surface of the cover 22 is formed in a liquid state, minute gaps or protrusions formed on the surface of the main body 21 and the surface of the cover 22 are formed. Bonded while infiltrating the surface containing.

Moreover, when the said solvent melt | dissolves resin etc., and the said main body 21 and the cover 22 consist of resin, the solvent of the said adhesive agent 40 contact | connects the said main body 21 and the cover 22. In addition, while melting a part of the surface of the main body 21 and the cover 22 is more closely bonded.

As the front surface of the main body 21 and the inner surface of the cover 22 are in close contact with each other, the adhesive 40 is bonded to the two surfaces, and the pressure applied to the cover 22 and the main body 21. Pressed by.

The adhesive 40 pressed while the main body 21 and the cover 22 are bonded is pressed into the space between the main body 21 and the cover 22 while being pressed between the front surface of the main body 21 and the inner surface of the cover 22. Unfolded and charged.

At this time, when the adhesive 40 is applied more than necessary, the adhesive 40 is filled between the main body 21 and the cover 22 by the pressing pressure of the main body 21 and the cover 22 The surplus adhesive 40 exits the inside of the main body 21 through the vent 30 opened on the front surface of the main body 21.

Accordingly, only the amount of adhesive 40 set between the front surface of the main body 21 and the inner surface of the cover 22 is filled to bond the main body 21 and the cover 22 to each other, and the excess adhesive ( 40 is discharged through the vent 30 opened in the main body 21, the main body 21 and the cover 22 is fixed to a set bonding thickness.

In addition, in the bonding process of the main body 21 and the cover 22, the air 50 interposed between the main body 21, the cover 22, and the adhesive 40 does not go out, and the main body 21 ) And the cover 22, the main body 21 and the cover 22 are joined and moved to another part while being pressurized, and the moved air 50 reaches the vent 30 The inner side of the main body 21 exits.

Accordingly, the air 50 interposed between the main body 21 and the cover 22 and the adhesive 40 is discharged to the outside at the same time as the main body 21 and the cover 22 are bonded to each other, and thus Due to the volume of the air 50, the main body 21 and the cover 22 may be excited by bonding, or the air 50 may intervene on only one side to prevent the main body 21 and the cover 22 from being tilted and joined. do.

In addition, the outside air 50 is in contact with the adhesive 40 through the vent 30, the solvent of the adhesive 40 is in contact with the air 50 is oxidized, or the solvent of the adhesive 40 is evaporated As the generated steam is discharged to the outside through the vent 30, the solvent is quickly removed from the adhesive 40, the resin of the adhesive 40 is solidified rapidly as the solvent is removed, the main body ( 21 and the cover 22 are firmly fixed together with the adhesive 40.

Accordingly, the main body 21 and the cover 22 are bonded to each other through the adhesive 40 and solidified quickly to shorten the assembly time of the main body 21 and the cover 22.

Therefore, in bonding the adhesive 40 through the adhesive body 40 between the main body 21 and the cover 22 of the knob 20, the adhesive 40 excessively applied between the main body 21 and the cover 22. Is discharged through the air vent 30 of the main body 21, and the air 50 interposed between the main body 21, the cover 22, and the adhesive 40 is discharged through the air vent 30. As the main body 21 and the cover 22 are initially designed, they are bonded and fixed, and the adhesive 40 is prevented from leaking to the outside of the main body 21 to reduce the appearance due to the leaked adhesive 40. Will be prevented.

In addition, the adhesive 40 is exposed to the air 50 and the oxidized vapor generated from the adhesive 40 is smoothly discharged so that the adhesive 40 is solidified quickly so that the main body 21 and the cover 22. The joining work time is shortened.

As described above, the present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by those skilled in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes are within the scope of the claims.

As described above, according to the present invention, the adhesive intervening between the main body and the cover of the knob is prevented from leaking to the outside, and is uniformly applied and solidified to a set thickness, thereby improving the appearance of the knob. have.

Another effect of the present invention is that the adhesive intervened between the main body and the cover of the knob is rapidly solidified while contacting the outside air, thereby reducing the adhesion work time of the knob.

Another effect of the present invention, while the oxidation vapor generated in the adhesive interposed between the body and the cover of the knob is smoothly discharged has the effect of reducing the solidification time of the adhesive.

Claims (1)

A main body formed and formed into a tubular shape so that a user grips and rotates it, A cover having a shape corresponding to the front surface of the main body and attached to the front surface of the main body to improve an appearance of the main body; An adhesive interposed between the main body and the cover to bond the main body and the cover; And a plurality of vents penetrated through the main body from the front surface to the inner surface of the main body.

Images