KR200253616Y1 - A shift assembling of mixer - Google Patents

Abstract

The present invention assembles the shaft to rotate the cutter to maintain the airtight to prevent leakage of the cut material, and to suppress the friction heat generated by the high-speed rotation of the shaft to the peripheral parts of the shaft to maintain a stable assembly state of the shaft A shaft assembling apparatus of a mixer, which is connected to a shaft, one end of which is connected to the clutch, and a shaft for rotating the cutter fixed to the upper end by the rotational power transmitted through the clutch, and a cylindrical body to open the upper portion of the body. A case having a screw thread formed to detachably fix the cup to a peripheral portion of the inner wall of the cylindrical body, and a receiving portion formed to receive and fix the shaft in a vertical direction at the center of a horizontal member for closing the cylindrical body; A lower portion of the housing part by rotatably accommodating the shaft therein; The cap is fixed to prevent heat from being transferred by the rotation of the shaft to the case, and the shaft is rotatably received in the inner receiving hole so as to support the upper end of the shaft. A first support gasket fixed between the inner side wall of the case accommodating part and the contact surface of the support bushing to be kept tight, and at least one of the shaft and the cap contact surface fixed at a predetermined position to maintain the airtightness It includes a second gasket.

Description

Shaft assembly device for mixers {A shift assembling of mixer}

The present invention relates to a mixer, in particular to assemble the shaft for rotating the cutter to maintain the airtight to prevent the leakage of the cut material, and to suppress the transfer of frictional heat generated by the high-speed rotation of the shaft to the peripheral parts of the shaft assembly It is to keep the state stable.

In a mixer, a cutter fixed to a shaft rotates at a high speed to finely cut or powder the material stored in the container.

The conventional blender, which is mainly used for the kitchen, is a material in which a main body provided with a control and a power supply means and a cutter integrally installed therein by a rotating power supplied from the main body are detachably seated on the upper part of the main body and are stored. It was composed of a storage container for cutting the.

However, since the conventional mixer configured as described above has a cutter formed integrally with the storage container, the storage container needs to be large in order to store a large amount of material, which is inconvenient to handle when cooking a small amount of material, and also the cutter and the container. There was also a disadvantage that can not clean the storage container and the cutter is not separated.

In order to solve this problem, as shown in FIG. 1, a cutter assembly 2 having a cutter assembled thereon is detachably assembled as shown in FIG. 1, and each of the cups 3 having different capacities is attached to the cutter assembly 2. The above disadvantages were solved by selectively assembling the cup 3 according to the capacity of the contents.

Here, in the structure of the cutter assembly 2 of the mixer, as shown in FIG. 2, the case 4 in which the cup 3 is assembled in the upward opening and the clutch C assembled in the center of the case 4 are assembled in the lower part. A shaft 7 for rotating the cutter 6 assembled thereon by rotation of power transmission, and a gasket 8 interposed between the case 4 and the shaft 7 to prevent leakage of the contents; The cover 9 protects the upper portion of the gasket 8 so that the gasket 8 does not contact the contents, and the bushing 10 accommodates the shaft 7 therein so that the shaft 7 is supported in the vertical direction. ) And a cap 11 to receive the bushing 10 therein so as to fix the bushing 10 and fixed to the bottom surface of the case 4 by a screw B.

In the conventional cutter assembly 2 configured as described above, the case 4 is detachably assembled to the upper portion of the main body 1, and the cup 3 in which the contents are stored in the opening of the case 4 is assembled. 7) As the clutch C assembled in the lower part rotates in engagement with the clutch C1 of the main body 1, the shaft 7 and the cutter 6 rotate at the same time as the clutch C at the same high speed so that the cutter 6 ) Will be chopped or powdered.

However, in the conventional cutter assembly 2 configured as described above, the bushing 10 is made of metal, and the cap 11 is made of aluminum or aluminum alloy so that the shaft 7 rotates at high speed. ) And the heat of friction generated between the bushing 10 and the bushing 10 are transmitted to the cap 11 and the screw B which fixes the cap 11 to the case 4 so that the boss 4a of the case 4 is removed. Thermal deformation causes many problems.

Accordingly, when the mixer is used for a long time, the high temperature heat is transmitted to the boss 4a of the case 4 to relax the screw B fastened to the boss 4a, and thermal deformation of the case 4. As a result, the shaft 7 assembled inside the case 4 does not assemble in a vertical state, causing a vibration phenomenon when the shaft 7 rotates.

In addition, when high temperature heat is transmitted to the case 4, the boss 4a is melted, and there is a risk of fire.

Since the case 4 is made of synthetic resin and the cover 9 protecting the gasket 8 is made of metal or synthetic resin, leakage occurs between these contact surfaces to corrode the metal bushing 10, and the spilled contents Flow into the main body 1 has the disadvantage of shortening the life of the blender.

The present invention is to solve the conventional problems as described above, the technical problem is to assemble the shaft for rotating the cutter to be kept airtight, the frictional heat generated by the high-speed rotation of the shaft is transmitted to the peripheral parts It is to provide a shaft assembly apparatus of the mixer to suppress the shaft to maintain a stable assembly state.

The shaft assembly device of the mixer has an insert bushing inside the cap, which is a super heat-resistant resin, and fixes the shaft in the vertical direction to the insert bushing to suppress the heat transfer of the friction heat generated between the shaft and the insert bushing to the case. It prevents deformation, stabilizes the shaft assembly, and installs a gasket on all flow paths through which the contents can leak.

1 is a perspective view of a typical blender,

Figure 2 is a front sectional view showing a conventional shaft assembly structure,

Figure 3 shows the present invention shaft assembly device,

3a is before the shaft rotates due to switch inactivity,

3b is the shaft rotated by the switch operation,

Figure 4 is an enlarged view taken from the main part of Figure 3;

Explanation of symbols on the main parts of the drawings

20: shaft 22: case

23 cap 24 support bushing

25: first gasket 26: second gasket

41: insert bushing

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. Figure 3 shows the shaft assembly apparatus of the present invention, 3a is before the shaft is rotated by the switch non-operation, 3b is the state in which the shaft is rotated by the switch operation. 4 is an enlarged view of the main part of FIG. 3.

The shaft assembly apparatus of the present invention mixer has a shaft 20 for rotating one end of the cutter 27 is fixed to the upper end by the rotational power transmitted through the clutch (C) and the body, and the body upwards Removably fixing the cup 21 to the opening, the case 22 for receiving and fixing the shaft 20 in the vertical direction in the center of the body, and the inside of the case to rotatably receive the shaft 20 and the case ( And inserted into the lower portion of the receiving portion 22 of the cap 23 to suppress the transfer of heat generated by the rotation of the shaft 20 to the case 22 and the inside to support the upper end of the shaft 20 The shaft 20 is rotatably accommodated in the support bushing 24 is inserted into the case 22 and fixed between the case 22 and the contact surface of the support bushing 24 is fixed and sealed Retaining first gasket (25), the shaft (20) and the cap (23) A second gasket 26, which is fitted at least one or more at a predetermined position on the contact surface to maintain airtightness.

The shaft 20 is fixed to the clutch (C) integrally to be selectively supplied with the rotational power of the body (1) at the lower end as usual, the cutter 27 for cutting the contents is assembled at the top. Therefore, the shaft 20 is provided with a screw thread 28 so as to fasten and fasten the clutch (C) to the lower portion at the bottom, the head 29 to prevent the cutter 27 detached from the upper portion is formed.

The case 22 is formed of a cylindrical body having a predetermined thickness so that the upper body is opened, and a thread 30 is formed to detachably fix the cup 21 to the inner wall periphery of the cylindrical body, and the lower end of the cylindrical body. Receiving portion 32 is formed in the center of the horizontal member 31 for closing the shaft 20 in the vertical direction for receiving and fixing.

And the case 22 is a horizontal member 31, the bottom surface of the high member 33 is formed to be screwed to fix the cap 23 to the outer side of the receiving portion 32, the horizontal member 31 The bottom surface has a concentric circle with the receiving portion 32 to accommodate the cap 23 and the clutch (C), etc. assembled to the case 22 therein and protect the inside, and the hollow-wall cylindrical protective wall 34 is downward. The length is extended.

Receiving portion 32 of the case 22 has a central portion of the horizontal member 31 protrudes upwards to communicate with the inside of the vertical direction, the support bushing 24 is fixed to the upper inner end of the communication A catching jaw 35 is formed to be formed, and a receiving groove 36 for receiving the first gasket 25 is formed at a lower periphery of the catching jaw 35.

The cap 23 is made of a heat-resistant heat insulating material and the receiving hole 37 having a diameter larger than the diameter of the shaft 20 in the center of the body to accommodate the shaft 20 therein in the vertical direction The main body 39 through which the fixing part 38 through which the plurality of screws B fastening holes H are perforated is extended to one side end of the body so that the body can be fixed to the high information 33 of the case 22. And a fitting hole 40 formed to support the shaft 20 inside the body so that the fitting hole 40 is located concentrically with the main body 39 receiving hole 37. (39) At least one insert bushing 41 is inserted into the horizontal horizontally.

The insert bushing 41 is positioned in the molded body 39 in a state where the insert 39 is pre-inserted into the main body 39 when the main body 39 is injection molded.

The main body 39 is made of a heat resistant super heat resistant resin material, the super heat resistant resin can withstand temperatures up to approximately 130 °-140 °. In addition, since the main body 39 is made of a resin material, the thermal conductivity is extremely low to suppress heat transfer to peripheral components, thereby preventing heat generated by the rotation of the shaft 20 from being transferred to the case 22.

And the inner diameter of the receiving hole 37 of the main body 39 has a dimension such that the outer peripheral portion of the second gasket 26 fitted to the shaft 20 for airtightness can be assembled by interference fit.

The insert bushing 41 is horizontally inserted into the main body 39 so that the shaft 20 accommodated in the fitting hole 40 should be supported in a vertical state so as not to be shaken, so that two or more are preferably spaced apart from each other. Do. In addition, the insert bushing 41 may sufficiently withstand the heat of friction generated when the shaft 20 rotates, and is preferably made of phosphor bronze to prevent corrosion.

The support bushing 24 is formed in an iron shape so that the body 22 is fixed to the catching jaw 35 of the case 22 accommodating part 32. Receiving hole 43 is through the vertical direction to support the shaft 20. Since the support bushing 24 is made of a metal material, the support bushing 24 has an inner diameter such that the shaft 20 can be loosely assembled to reduce friction with the shaft 20.

The first and second gaskets 25 and 26 are for preventing the cut material from leaking to the outside. An O-ring is generally used.

The second gasket 26 is preferably positioned above the receiving hole 37 of the cap 23 so that the cut material does not flow into the cap 23.

The following describes in detail the state of use of the subject innovation constituted as described above. Figure 3a shows an assembled state of the present invention, the case 22, the shaft 20 is assembled is inserted into the upper member (U) located on the top of the mixer body (1), the clutch (C) is the main body (1) The clutch C1 connected to the motor M is engaged with each other. This state is a state before the switch S is activated and the shaft 20 is rotated.

In this state, when the cup 21 is assembled by fastening the cup 21 to the thread 30 on the upper part of the case 22, the lever 44 is moved downward by the cup 21 as shown in FIG. 3B. To operate the switch (S). At the same time, the shaft 20 rotates at a high speed so that the cutter 27 fixed to the upper portion cuts the contents stored in the cup 21.

At this time, since the shaft 20 is rubbed with the insert bushing 41, frictional heat is generated at the portion, and the frictional heat is transmitted to the cap 23.

However, the cap 23 is made of a super heat resistant resin material that is resistant to heat, so the thermal conductivity is very low, so that the frictional heat is hardly conducted to the case 22 in contact with the cap 23, thereby preventing thermal deformation of the case 22. Done.

The insert bushing 41 made of phosphor bronze material resistant to heat is sufficiently resistant to the frictional heat.

On the other hand, since the support bushing 24 receives the shaft 20 in a loose fitting state in the accommodation hole therein, the support bushing 24 is not directly in contact with the shaft 20, so that friction heat is hardly generated.

As the shaft 20 rotates at a high speed as described above, the contents flow into a gap between the shaft 20 and the support bushing 24 and the support bushing 24 and the case 22. The first and second gaskets 25 and 26 block the flowing contents to maintain airtightness.

As described above, even if friction heat is generated between the shaft and the insert bushing, the friction heat is hardly transmitted to the case by the cap.

Therefore, the present invention has a merit that the fixed state of the shaft can be stabilized by preventing the thermal deformation of the case because the friction heat is almost not conducted even when the screw fastens the cap to the case.

In addition, the first and second gaskets have an advantage of preventing the leakage of the contents so that the mixer can be managed cleanly.

Claims (4)

A shaft having one end connected to the clutch to rotate the cutter fixed to the upper end by the rotational power transmitted through the clutch; A cylindrical body is formed to have a predetermined thickness so that the upper part of the body is opened, and a screw thread is formed to detachably fix the cup to the periphery of the inner wall of the cylindrical body. The shaft is vertically positioned at the center of a horizontal member that closes the cylindrical body. A case in which an accommodation portion is formed to accommodate the accommodation; A cap rotatably accommodating the shaft therein and preventing the heat generated by the rotation of the shaft from being transferred to the case by being fixed to the lower portion of the housing part of the case; A support bushing rotatably accommodating the shaft in an inner accommodating hole so as to support an upper end of the shaft and being inserted and fixed in an upper portion of the accommodating part of the case; A first gasket fitted between the inner wall of the case accommodating part and the contact surface of the support bushing to maintain airtightness; And at least one second gasket fitted to the shaft and the cap contact surface at a predetermined position to maintain airtightness. According to claim 1, wherein the receiving portion of the case is the central portion of the horizontal member protrudes upwards and the inside thereof communicates in the vertical direction, the engaging jaw is formed so that the support bushing can be fixed to the upper inner end of the communication; And Shaft assembling apparatus of the mixer, characterized in that the receiving groove for receiving the first gasket is formed in the lower periphery of the locking step. The method of claim 1, wherein the cap is made of a high thermal insulation material that is heat-resistant and not high thermal conductivity so that the receiving hole having a diameter larger than the shaft diameter in the center of the body to accommodate the shaft therein is vertically perforated A main body extending from a fixing part through which a screw fastening hole is formed at one end of the body so that the body can be fixed to a high information of the case; A fitting hole is formed in the body to support the shaft, and the fitting hole includes at least one insert bushing horizontally inserted into the body so that the fitting hole is positioned concentrically with the body receiving hole. Shaft assembly device. 4. The shaft assembly apparatus of claim 3, wherein the insert bushing of the cap is made of a phosphor bronze material capable of withstanding heat generated by rotation of the shaft.