KR102403344B1 - Knife assembly for mixer - Google Patents

Abstract

The present invention relates to a blade bundle for a mixer. According to the present invention, the blade bundle for a mixer comprises: a rotating shaft (110); an upper blade (120) installed on the rotating shaft (110) to integrally rotate together with the rotating shaft (110); lower blades (131, 132) spaced downward from the upper blade (120) by a first separation distance (d1) and installed on the rotating shaft (110) to integrally rotate together with the rotating shaft (110); and an upper spacer (141) axially installed on the rotating shaft (110) between the upper blade (120) and the lower blade (130) and maintaining the first separation distance (d1) between the upper blade (120) and the lower blade (130). According to the present invention, efficiency in grinding and cutting can be increased.

Description

Knife assembly for mixer}

The present invention relates to a blade bundle for a blender, and more particularly, to a blade bundle for a blender suitable for increasing grinding and cutting efficiency by uniformly grinding and cutting the entire container of the mixer.

In general, a household mixer is an electric machine that chops, juices, mixes, and pulverizes foods such as fruits, vegetables, and grains (hereinafter, collectively referred to as 'pulverization' for convenience of explanation) and processes them to be consumed in various forms. to be.

Basically, the mixer includes a main body having a motor, a container provided with a blade receiving rotational force of the motor as it is coupled to the main body, and a lid closing the upper end of the container.

The rotating blade configured inside the container of such a mixer is provided by being mounted on the rotating shaft of the blade bundle.

And the conventional blade bundle is usually two or three blades are fastened to the rotating shaft.

However, in the case of the prior art, when two or three blades are fastened to the rotating shaft, these blades are fastened to each other.

As such, since two or three blades are closely attached to the rotating shaft, there is a limit to the crushing and cutting efficiency.

Document 1: Registered Patent Publication No. 10-1469100 (Announcement date: December 04, 2014) Document 2: Registered Patent Publication No. 10-1400761 (Announcement date: May 27, 2014)

The present invention was created to solve the problems of the prior art as described above, and the purpose of the blade bundle for a mixer according to the present invention is,

First, the upper blade and one or more lower blades are spaced apart so that a certain interval is maintained and installed on the rotating shaft, so that the grinding and cutting can be performed uniformly over the entire grinding space, and also by using a small number of blades. It allows simultaneous grinding and cutting throughout the interior of the container, increasing space efficiency and increasing the grinding and cutting efficiency.

Second, to improve the crushing and cutting efficiency at the same number of revolutions and the same operating time,

Third, by making sure to hold the gap between the upper and lower blades, the flow or play between the upper and lower blades is prevented and stable rotation can be maintained during high-speed rotation.

Fourth, the upper blade, the upper spacer, and the lower blade and the lower spacer can be simultaneously tightened and fastened to the rotating shaft by only tightening one compression tightening nut, which is a simple configuration.

Fifth, by the unique shape of the upper blade, the blade occupies the entire space of the container of the mixer, which is the crushing cutting space, to increase the crushing and cutting efficiency,

Sixth, by bending the two upwardly bent bending parts obliquely in the rotational direction, the cutting and grinding action is accelerated in the rotational direction during high-speed rotation, so that more rapid and powerful cutting and grinding can be performed,

Seventh, by using the blade connecting member, which is a separate member, to connect the rotary shaft and the blade to the rotary shaft of the round bar, there is no need to chamfer the round bar and thicken the round bar, and also chamfering is required It is to provide a blade bundle for a mixer that is suitable for solving technical problems caused by chamfering because there is no chamfer.

The present invention for achieving the above object is a blade bundle for a blender, a rotating shaft, an upper blade installed on the rotating shaft to rotate integrally with the rotating shaft, and a first separation distance downward from the upper blade. It is installed on the rotary shaft and characterized in that it is configured to include a lower blade rotating integrally with the rotary shaft.

And the present invention, the blade bundle for the blender, is axially installed on the rotating shaft between the upper blade and the lower blade, and further includes an upper spacer that maintains a first separation distance between the upper blade and the lower blade. do.

The blade bundle for a mixer according to the present invention having the above configuration has the following effects.

First, the upper blade and one or more lower blades are spaced apart to maintain a certain interval and installed on the rotating shaft, so that the grinding and cutting can be performed uniformly over the entire grinding space, and also a container that is a grinding space even with a small number of blades. Simultaneous pulverization and cutting throughout the interior has the effect of increasing space efficiency and increasing pulverization and cutting efficiency.

Second, there is an effect that can improve the grinding and cutting efficiency in the same rotation speed and the same operating time.

Third, the gap between the upper and lower blades can be firmly secured, thereby preventing the flow or play of the upper and lower blades and maintaining stable rotation during high-speed rotation.

Fourth, there is an effect that the upper blade, the upper spacer, and the lower blade and the lower spacer can be simultaneously tightened and fastened to the rotating shaft by only tightening one compression tightening nut, which is a simple configuration.

Fifth, due to the unique shape of the upper blade, the blade occupies the entire space of the container of the mixer, which is the crushing cutting space, thereby increasing the crushing and cutting efficiency.

Sixth, since the two upwardly bent bending parts are bent obliquely in the rotational direction, the cutting and grinding action is accelerated in the rotational direction during high-speed rotation, so that more rapid and powerful cutting and grinding can be performed.

Seventh, by using a blade connecting member, which is a separate member, to connect the rotary shaft and the blade to the rotary shaft of the round bar, there is no need to chamfer the round bar and thicken the round bar, and also chamfering is required Since there is no chamfer, it has the effect of solving technical problems caused by chamfering.

1 is a front view of a blade bundle 100 for a mixer according to an embodiment of the present invention.
FIG. 2 is a cross-sectional configuration view of a main part of FIG. 1 .
Figure 3 is a view of the main parts of the blade bundle 100 for a mixer according to an embodiment of the present invention disclosed in Figure 1, Figure 3 (a) is a front view of the rotating shaft 110, Figure 3 (b) is a plan view of the upper spacer 141 and the lower spacer 142 , FIG. 3 ( c ) is a plan view of the compression tightening nut 117 , and FIG. 3 ( d ) is a plan view of the bushing 150 .
Figure 4 is a schematic diagram of the configuration of the blade bundle 100 for a mixer according to another embodiment of the present invention.
FIG. 5A is a plan view of the upper spacer 141 in which the upper first key protrusion 161 and the upper second key protrusion 162 are integrally extended in FIG. 4 , and FIG. 5B is FIG. 4 . is a plan view of the lower spacer 142 in which the lower first key protrusion 163 and the lower second key protrusion 164 are integrally extended, and (c) of FIG. 5 is the upper key protrusion 161 and 162 and the lower key protrusion ( It is a cross-sectional view of the upper spacer 141 and the lower spacer 142 in which 163 and 164 are formed.
6 is a plan view at an angle at which the upper blade 120 and the lower blade 130 are respectively installed on the rotary shaft 110 in the blender blade bundle 100 according to another embodiment of the present invention, in FIG. (a) is a plan view of the upper blade 120, Figure 6 (b) is a lower first blade 131 that forms an angle of 120 degrees with respect to the upper blade 120 shown in Figure 6 (a) of It is a plan view, and (c) of FIG. 6 is a plan view of the lower second blade 132 forming an angle of 120 degrees with respect to the lower first blade 131 shown in (b) of FIG.
7 is an upper blade 120, a lower first blade 131, and a lower second blade 132 shown in FIG. 6 are each installed in an isometric view (120 degrees because there are three) to show the combined state It is a conceptual diagram of the bonding state.
8 is an embodiment in which the upper blade and the lower blade are directly coupled to the rotary shaft 110 without a blade connecting member, and FIG. 8 (a) is a blade bundle 100 for a blender according to another embodiment of the present invention. ) is a conceptual diagram of the configuration, and (b) of FIG. 8 is a cross-sectional view of the rotary shaft 110 to show that two chamfered portions 110c are formed on the rotary shaft 110, and (c) of FIG. 8 is the rotation It is a plan view of the upper blade 120 having two straight portions 120a ′ coupled to the chamfered portion 110c of the shaft 110 and the lower first blade 131 in which the two straight portions 120a ′ are formed.
Figure 9 is a conceptual diagram of the configuration of the blade bundle 100 for a mixer according to another embodiment of the present invention, Figure 9 (a) is an exemplary view in which the lower blade is composed of three blades, Figure 9 (b) is It is an exemplary view in which the lower blade is composed of four blades.
10 is a block diagram of the upper blade in the blade bundle 100 for a blender according to an embodiment of the present invention, (a) of FIG. 10 is a perspective view, FIG. 10 (b) is a front view, (c) is a plan view.

The following will be described in detail with reference to the accompanying drawings of a preferred embodiment of the present invention, a blade bundle for a mixer.

In this specification, the direction in which the upper blade 120 is located is upward and the direction in which the lower blade 130 is located is downward.

The blade bundle 100 for a mixer according to an embodiment of the present invention includes a main body (not shown) in which a motor (not shown) is built-in, and a container installed in the main body and provided with a blade inside, which is a pulverizing and cutting space. In the mixer constituted by doing so, a rotating shaft 110 that is axially connected to a motor (not shown) built in the main body (not shown) of the mixer and rotates according to the rotation of the motor (not shown), and the rotating shaft 110 . The upper blade 120 which is installed in (axial snow) and rotates integrally with the rotary shaft 110, and the first separation distance d1 downward from the upper blade 120 (upper blade 120 and lower blade ( 130) is spaced apart by a distance (d1)] and is installed on the rotary shaft 110 [chukseol] and is configured to include one or more lower blades 130 that rotate integrally with the rotary shaft 110 do.

As described above, the upper blade 120 and the one or more lower blades 130 are spaced apart by a first separation distance d1 and installed on the rotary shaft 110, as described above, the upper and lower blades 120 and 130 are spaced apart in the vertical direction. ), it is possible to uniformly pulverize and cut the entire pulverizing space in the container of the mixer, which is the pulverizing space, and simultaneously pulverize and cut the entire pulverizing space inside the container with a small number of knives. It can be cut, so the space efficiency is high and the grinding cutting efficiency is high.

Therefore, there is an advantage in that the grinding and cutting efficiency is improved even at the same rotation speed and the same operating time.

The blade bundle 100 for a blender according to an embodiment of the present invention is chuk-seol on the rotary shaft 110 between the upper blade 120 and the lower blade 130, and the upper blade 120 and the lower blade. The upper spacer 141 for maintaining the first separation distance d1 between the 130 is characterized in that it is further included.

According to this, it is possible to securely hold the gap between the upper blade 120 and the lower blade 130 to prevent the flow or play between the upper blade 120 and the lower blade 130 and to maintain a stable rotation during high-speed rotation.

The lower blade 130 may be composed of one lower blade 131 (lower first blade 131) as shown in FIG. 8, and shown in FIGS. 1, 2, 4 and 9 As described above, it may be configured in plurality, and specific embodiments in the case of being configured in plurality will be described in detail below.

In the blade bundle 100 for a mixer according to an embodiment of the present invention, a main screw part 110a is formed on the outer peripheral surface of the upper side of the rotary shaft 110, and the lower blade 130 rotates under the A support member 115 that is installed to be supported on the shaft 110 and supports the lower blade 130 , and the lower blade 130 , the upper spacer 141 and the upper blade 120 on the support member 115 . ) in a state in which they are sequentially supported in close contact with each other, that is, the lower blade 130 is supported by the support member 115, and the upper spacer 141 is the lower blade supported by the support member 115 ( 130), the upper blade 120 is in close contact with the upper spacer 141 that is in close contact with the support member 115 and in a state in which it is sequentially supported, downward in the direction in which the lower blade 130 is located. The lower blade 130 is screwed to the main screw portion 110a of the rotary shaft 110 to press the upper blade 120 and is supported by the support member 115 with the support member 115 interposed therebetween. It is characterized in that the upper spacer 141 and the upper blade 120 for pressing the compression tightening nut 117 for pressing at the same time is further included.

According to this, it is possible to fasten and fasten the plurality of blades and the upper spacer 141 to the rotary shaft 110 at the same time only by tightening one compression tightening nut 117 by a simple configuration.

And, a step 110b is formed in the rotary shaft 110, and the support member 115 is supported by the step 110b of the rotary shaft 110 and is axially installed on the rotary shaft 110. do it with

The support member 115 has an insertion hole 115a to be inserted into the rotary shaft 110 is formed.

According to an embodiment, a support groove 115b for being supported on the step 110b by being recessed outward in a radial direction from the insertion hole 115a is formed. Accordingly, the support member 115 can be more stably supported on the rotary shaft 110 .

On the other hand, the support member 115 is not limited to the above shape, of course, it may be formed, for example, in the form of a washer of a flat plate.

A screw hole 117a in which a screw groove 117a ′ for screwing with the main screw portion 110a is formed is formed through the center of the compression tightening nut 117 .

An upper hole 141a is formed in the upper spacer 141 in the longitudinal direction so as to be extrapolated to the rotating shaft 110 .

In the blade bundle 100 for a mixer according to an embodiment of the present invention, the lower blade 130 is axially installed on the rotary shaft 110 in plurality, that is, the lower blade 130 is provided in plurality. If it is, a lower spacer 142 that is axially installed on the rotary shaft 110 between the plurality of lower blades 130 and maintains a separation distance d2 between the plurality of lower blades 130 is further included. It is characterized in that it is composed.

Therefore, the lower blade 131, the lower spacer 142, and the lower blade 132 are sequentially supported in close contact with the support member 115, and the compression tightening nut 117 is screwed to the main screw portion 110a. By pressing and tightening the upper blade 120 downward, the lower blade 132, the lower spacer 142, the lower blade 131 and the upper are supported by the support member 115 with the support member 115 interposed therebetween. It is characterized in that the spacer 141 and the upper blade 120 are pressed and fixed at the same time.

According to this, the upper blade 120, the upper spacer 141, the lower blade 130, and the lower spacer 142 are simultaneously tightened to the rotating shaft 110 by only tightening one compression tightening nut 117 by a simple configuration. can be contracted

According to the embodiment, as shown in Figures 1, 2, and 4, the lower blade (130:131, 132) may be composed of two blades.

That is, a first separation distance d1 downward from the upper blade 120 (distance d1 between the upper blade 120 and the lower first blade 131 ) is spaced apart from the upper spacer 141 to be in close contact with the upper spacer 141 . and the lower first blade 131 which is installed on the rotary shaft 110 and rotates integrally with the rotary shaft 110, and the lower spacer 142 from the lower first blade 131 between It is spaced downward and is in close contact with the lower spacer 142, and is installed on the rotary shaft 110 [axis snow] and is characterized in that it is composed of a lower second blade 132 that rotates integrally with the rotary shaft 110. .

Therefore, the lower second blade 132, the lower spacer 142, the lower first blade 131, the upper spacer 141, and the upper blade 120 are in close contact with each other in order to the support member 115, and are supported. The compression tightening nut 117 is screwed to the main screw portion 110a and is supported by the support member 115 with the support member 115 interposed therebetween by pressing and tightening the upper blade 120 downward. It is characterized by pressing and fixing the lower second blade 132, the lower spacer 142, the lower first blade 131, the upper spacer 141, and the upper blade 120 at the same time.

And, according to the embodiment, as shown in Fig. 9 (a) of the drawing, the lower blade (130: 131, 132, 133) may be composed of three blades.

The lower blade 130 is a first spaced distance d1 downward from the upper blade 120 (distance d1 between the upper blade 120 and the lower first blade 131) so that the upper The lower first blade 131 which is in close contact with the spacer 141 and installed on the rotary shaft 110 [chukseol] to rotate integrally with the rotary shaft 110, and the lower first blade 131 from the lower first blade 131 1 spaced downward with the spacer 142-1 interposed therebetween to be in close contact with the lower first spacer 142-1, and installed on the rotary shaft 110 [chukseol] to rotate integrally with the rotary shaft 110 The lower second blade 132 and the lower second blade 132 are spaced downward with the lower second spacer 142-2 interposed therebetween so as to be in close contact with the lower second spacer 142-2 and the rotation shaft. It is installed [chukseol] on the 110 and is composed of a lower third blade 133 that rotates integrally with the rotary shaft 110 .

At this time, the lower spacer 142 is in close contact between the lower first blade 131 and the lower second blade 132 and is accumulating on the rotary shaft 110, and the lower first blade 131 and the lower second blade 132 are installed. 2 The lower first spacer 142-1 for maintaining the distance between the blades 132, and the lower second blade 132 and the lower third blade 133 are in close contact between the rotary shaft 110 It is characterized in that it is composed of a lower second spacer (142-2) that maintains the separation distance between the lower second blade 132 and the lower third blade (133).

Therefore, in this case, the third lower blade 133, the second lower spacer 142, the second lower blade 132, the first lower spacer 142, and the lower first blade are sequentially mounted on the support member 115. 131, the upper spacer 141, and the upper blade 120 are supported in close contact with each other, and the compression tightening nut 117 is screwed to the main screw portion 110a by pressing and tightening the upper blade 120 downward. The third lower blade 133 , the second lower spacer 142 , the second lower blade 132 , and the first lower spacer 142 are supported by the support member 115 with the support member 115 interposed therebetween. ) and the lower first blade 131 and the upper spacer 141 and the upper blade 120 are pressed and fixed at the same time.

In addition, according to the embodiment, as shown in Figure 9 (b), the lower blade (130: 131, 132, 133, 134) may be composed of four blades.

That is, the lower blade 130 is spaced downward from the upper blade 120 by a first separation distance d1 to be in close contact with the upper spacer 141 and installed on the rotary shaft 110 [chukseol]. The lower first blade 131 which rotates integrally with the rotary shaft 110, and the lower first spacer 142-1 from the lower first blade 131 interposed therebetween, the lower first spacer ( 142-1) in close contact with the lower second blade 132 that is installed on the rotary shaft 110 and rotates integrally with the rotary shaft 110, and the lower second blade 132 from the lower second blade 132 2 spaced downward with the spacer 142-2 interposed therebetween to be in close contact with the lower second spacer 142-2 and installed on the rotary shaft 110 [chukseol] to rotate integrally with the rotary shaft 110 The lower third blade 133 and the lower third blade 133 are spaced downwardly with the lower third spacer 142-3 interposed therebetween so as to be in close contact with the lower third spacer 142-3 and the rotation shaft It is installed on the (110) [chukseol] is composed of a lower fourth blade 134 that rotates integrally with the rotary shaft (110).

At this time, the lower spacer 142 is in close contact between the lower first blade 131 and the lower second blade 132 and is accumulating on the rotary shaft 110, the lower first blade 131 and the lower portion The lower first spacer 142-1 that maintains a separation distance between the second blades 132, and the lower second blade 132 and the lower third blade 133 are in close contact between the rotary shaft 110 ), and a lower second spacer 142-2 that maintains a separation distance between the lower second blade 132 and the lower third blade 133, and the lower third blade 133 and the lower third The lower third spacer 142- which is in close contact between the 4 blades 134 and is axially installed on the rotary shaft 110, and maintains a separation distance between the lower third blade 133 and the lower fourth blade 134. 3) is characterized in that it consists of.

Therefore, in this case, the fourth lower blade 134, the lower third spacer 142-3, the third lower blade 133, the second lower spacer 142, and the lower third blade 134 are sequentially attached to the support member 115 in this case. 2 The blade 132, the first lower spacer 142, the lower first blade 131, the upper spacer 141, and the upper blade 120 are supported in close contact with each other, and the compression tightening nut 117 is the main screw part. The fourth lower blade 134 and the lower third spacer that are screwed to 110a and are supported by the support member 115 with the support member 115 interposed therebetween by pressing and tightening the upper blade 120 downwards. (142-3), a third lower blade 133, a second lower spacer 142, a lower second blade 132, a first lower spacer 142, a lower first blade 131, and an upper spacer 141 ) and the upper blade 120 are simultaneously compressed and fixed.

Next, the shape characteristics of the upper blade will be described in detail.

In the blade bundle 100 for a mixer according to an embodiment of the present invention, the upper blade 120 has an upper fitting hole 120a formed in the center and a flat portion 121 of a flat shape, and the flat It is configured to include a first bending part 122 bent upwardly from one side of the part 121 and a second bending part 123 bent upward from the other side of the flat part 121, and the lower part The blade 130 is formed in a flat shape parallel to the flat portion 121 in the horizontal direction, and a first cutting blade portion 122a is formed on one side of the first bending portion 122 to face the rotational direction. is formed, and is diagonally opposite to the first cutting blade portion 122a, and a second cutting blade portion 123a is formed on the other side of the second bending portion 123 to face the rotational direction. do.

According to the shape of the upper blade 120 as described above, the blade occupies the entire space of the container of the mixer, which is the grinding and cutting space, so that the grinding and cutting efficiency can be increased.

In the blade bundle 100 for a mixer according to an embodiment of the present invention, the first bending part 122 is bent obliquely with respect to the flat part 121 so that the first bending part 122 and the flat part are bent. The boundary 120b of 121 is formed in an oblique shape, and the second bending portion 123 is parallel to the boundary 120b between the first bending portion 122 and the flat portion 121 . ) is bent obliquely, so that the boundary 120c between the second bending part 123 and the flat part 121 is formed in an oblique shape.

Therefore, the boundary 120c between the second bent part 123 and the flat part 121 is one side (left side in the drawing of FIG. 10(c)) and the other side ( FIG. 10(c) ) of the flat part 121 . ) in the drawing, an oblique angle is formed at an angle of an oblique angle θ with respect to the remaining sides (the upper and lower sides in the drawing of FIG. The boundary 120b of the flat portion 121 is the rest of the flat portion 121 other than one side (the left side in the drawing of FIG. 10(c) ) and the other side (the right side in the drawing of FIG. 10(c)). An oblique angle is formed at an angle of (180 - θ) with respect to the side (the upper side and the lower side in the drawing of FIG. 10(c) ).

As described above, since the two upwardly bent bending parts 122 and 123 are bent obliquely in the rotational direction, the cutting and grinding action is accelerated in the rotational direction during high-speed rotation, so that more rapid and powerful cutting and grinding can be achieved. .

The flat portion 121 has a quadrangular flat shape, and one side (the left side in the drawing of FIG. 10(c) ) and the other side (the right side in the drawing of FIG. 10(c)) of the flat portion 121 side] and the remaining two sides (upper side and lower side in the drawing of FIG. Accordingly, the flat portion 121 has a parallelogram shape.

In the flat portion 121, one side and the opposite side are the short sides, and the other two sides of the flat portion 121 (the upper and lower sides in the drawing of FIG. 10(c) ) are the long sides, and the The bending parts 122 and 123 may be bent at the short side.

However, the present invention is not limited thereto, and the two bending portions 122 and 123 may be formed by bending the long side of the flat portion 121 as well.

Next, a configuration in which the rotary blade (upper blade and lower blade) is fixed to the rotary shaft 110 will be described.

In the blade bundle 100 for a mixer according to an embodiment of the present invention, at least one chamfered portion 110c chamfered in the height direction is formed on the rotary shaft 110 [Fig. 8 (b) Reference], an upper fitting hole 120a is formed in the center of the upper blade 120, and lower fitting holes 131a and 132a are formed in the center of the lower blade 130, and the upper fitting hole ( 120a) and the lower fitting holes 131a and 132a, corresponding to the at least one chamfered portion 110c, at least one straight line portion 120a', 131a'132a' is formed, so that the upper blade 120 and The lower blade 130 is extrapolated to be fitted to the rotary shaft 110 in which the at least one chamfered portion 110c is formed, so that it rotates integrally with the rotary shaft 110 without turning with respect to the rotary shaft 110 characterized.

In (b) of FIG. 8, two chamfered parts 110c are formed.

And, in the blade bundle 100 for a mixer according to an embodiment of the present invention, as shown in FIGS. 6 and 7 , the upper blade 120 and the lower blade 130 are extrapolated to the rotary shaft 110 . ) is characterized in that the rotational shaft 110 is extrapolated so as to be arranged at an equal angle with respect to a rotation angle of 360 degrees.

In the blade bundle 100 for a mixer according to an embodiment of the present invention, as shown in FIG. 6 , as one method for equiangular arrangement, the upper insertion hole 120a and the lower insertion hole 131a , 132a) is characterized in that it is formed to be inserted at an angle with respect to the rotary shaft (110).

Therefore, the direction of the upper blade 120 and the lower blade 130 by the direction of the upper insertion hole (120a) and the lower insertion hole (131a, 132a) formed when the upper blade 120 and the lower blade 130 are manufactured. this is decided

For example, as shown in (a) of Figure 8, when composed of an upper blade 120 and one lower blade 130, one upper insertion hole (120a) and one lower insertion hole (131a, 132a) is formed at an interval of 180 degrees with respect to the rotational direction (circumferential direction).

Similarly, as shown in Figures 6 and 7, when the upper blade 120 and the lower blade 130 are all three, one upper insertion hole (120a) and two lower insertion holes (131a, 132a) are sequentially formed at intervals of 120 degrees.

Also, when the upper blade 120 and the lower blade 130 are all composed of four, one upper insertion hole 120a and three lower insertion holes 131a and 132b (not shown) are sequentially arranged at intervals of 90 degrees. will be formed

Now, according to another embodiment, the upper blade 120 and the lower blade 130 are not directly coupled to the rotary shaft 110, but to the rotary shaft 110 through the blade connecting members 150, 161, 162, 163, 164. This knife blade The configuration and action of fastening the blade using the connecting members (150, 161, 162, 163, 164) will be described.

In the blade bundle 100 for a mixer according to an embodiment of the present invention, the rotary shaft 110 has a round bar shape, and an upper fitting hole 120a is formed in the center of the upper blade 120, and the Lower fitting holes 131a and 132a are formed in the center of the lower blade 130 , and are fastened to the rotary shaft 110 to rotate integrally with the rotary shaft 110 , and the upper fitting hole 120a and the lower portion The blade connecting member 150,161,162,163,164 is inserted to fit into the fitting holes 131a and 132a so that the upper blade 120 and the lower blade 130 rotate integrally with the rotary shaft 110 without turning outward. It is characterized in that it is composed.

As shown in Fig. 8, it is also possible to key the upper and lower blades by processing the chamfered portion 110c directly on the round bar, but the length of the chamfered portion 110c is longer because the blade is three or more stages. An eccentricity may occur due to the processing of the mounting 110c, and eccentricity of the rotating blade may occur due to this eccentricity, and due to this eccentricity, noise, vibration, and vibration may occur during high-speed rotation, which may adversely affect the product. have.

Therefore, when the blade has three or more stages as described above, the round bar is used as it is, but by adopting the blade connecting member 150,161,162,163,164, which is a separate member, there is no need to chamfer the round bar, so it is not necessary to thicken the round bar, In addition, since chamfering is unnecessary, the problem associated with chamfering can also be solved.

1 to 3, in the blade bundle 100 for a mixer according to an embodiment of the present invention, the main screw portion 110a is formed on the outer peripheral surface of the upper side of the rotary shaft 110, The blade connecting member 150 has a through hole 150a formed in the longitudinal direction, and the through hole 150a has a first screw fastened with the main screw portion 110a in order to be fastened to the rotary shaft 110 . 1 is composed of a tubular bushing 150 that is coaxially fastened to the outer circumferential surface of the rotary shaft 110 as a threaded part 150c is formed, and the outer circumferential surface of the bushing 150 is the bushing 150 is the rotary shaft ( 110) when rotating integrally with the upper blade 120 and the lower blade 130 so as to rotate together with the bushing 150 without turning the upper fitting hole 120a and the lower fitting hole 131a, 132a) The upper fitting hole 120a of the upper blade 120 and the lower blade 130 have lower fitting holes 131a and 132a are extrapolated to be fitted to the outer circumferential surface of the bushing 150 so as to be fitted to the bushing. It is characterized in that it rotates with (150).

It is possible to solve the problem of directly fastening the upper blade and the lower blade to the rotary shaft 110 by the simple tubular bushing 150 as described above.

At least one flat surface 150b is formed on the outer peripheral surface of the bushing 150 in the height direction, and the at least one flat surface 150b is formed in the upper fitting hole 120a and the lower fitting hole 131a and 132a. Corresponding to at least one straight line portion (120a', 131a'132a') is formed, the upper blade 120 and the lower blade 130 is a bushing 150 in which the at least one flat surface 150b is formed. It is extrapolated to fit into the rotation shaft 110 and is characterized in that it rotates integrally with the rotation shaft 110 without turning outward.

Here, the bushing 150 has a flat outer circumferential surface is formed in a square shape, and the upper fitting hole 120a and the lower fitting hole 131a and 132a are formed as a square hole matching the square bushing. . In the example of the drawings, the bushing 150 is formed in a quadrangular tubular shape.

And as shown in FIGS. 4 and 5, in the blade bundle 100 for a mixer according to another embodiment of the present invention, the main screw part 110a is formed on the outer peripheral surface of the upper side of the rotary shaft 110, In the center of the upper spacer 141, an upper hole 141a through which a screw groove 141a' for screwing with the main screw part 110a is formed is formed, and the screw groove of the upper spacer 141 ( 141a') is screwed with the main screw part 110a to rotate integrally with the rotary shaft 110, and the blade connecting member 160 has an upper hole so as to communicate with the upper hole 141a of the upper spacer 141. The upper first key protrusion 161 is formed to protrude upward from the upper surface of the upper spacer 141 along the periphery of 141a and is fitted into the upper fitting hole 120a, and the upper part of the upper spacer 141 is formed. The upper second key protrusion 162 is formed to protrude downward from the lower surface of the upper spacer 141 along the periphery of the upper hole 141a so as to communicate with the hole 141a and fit into the lower fitting holes 131a and 132a. ), and on the outer peripheral surfaces of the upper first key protrusion 161 and the upper second key protrusion 162, the upper first key protrusion 161 and the upper second key protrusion 162 are rotating shafts ( 110), the upper fitting so that the upper blade 120 and the lower blade 130 can be rotated together with the upper first key protrusion 161 and the upper second key protrusion 162 without turning outward. The hole 120a and the lower fitting holes 131a and 132a are formed to be fitted, and the upper fitting hole 120a and the lower blade 130 of the upper blade 120 have the lower fitting holes 131a and 132a. It is extrapolated to fit the outer peripheral surfaces of the upper first key protrusion 161 and the upper second key protrusion 162, and rotates together with the upper first key protrusion 161 and the upper second key protrusion 162. .

In addition, at least one flat surface 161b and 162b is formed on the outer peripheral surfaces of the upper first key protrusion 161 and the upper second key protrusion 162, and the upper fitting hole 120a and the lower fitting hole ( At least one straight part 120a', 131a'132a' is formed in 131a, 132a) to correspond to the at least one flat surface 150b, so that the upper blade 120 and the lower blade 130 are the At least one flat surface (161b, 162b) is extrapolated to fit the upper first key protrusion 161 and the upper second key protrusion 162 formed with respect to the rotating shaft 110 without turning the rotating shaft 110 It is characterized in that it rotates integrally with.

And, in the blade bundle 100 for a mixer according to an embodiment of the present invention, when the lower blade is composed of two lower blades, the blade connecting members 163 and 164 are the lower hole of the lower spacer 142 . The lower first key protrusion 163 is formed to protrude upward from the upper surface of the lower spacer 142 along the periphery of the lower hole 142a so as to communicate with the lower hole 142a and fit into the lower fitting holes 131a and 132a. and protruding downward from the lower surface of the lower spacer 142 along the periphery of the lower hole 142a so as to communicate with the lower hole 142a of the lower spacer 142, so that the lower fitting holes 131a and 132a are formed. It is configured to include a lower second key protrusion 164 fitted into the lower first key protrusion 163 and the outer peripheral surfaces of the lower first key protrusion 163 and the lower second key protrusion 164 are the lower first key protrusion 163 and the lower third key protrusion 163 . 2 When the key protrusion 164 rotates integrally with the rotary shaft 110, the lower first key protrusion 163 and the lower part of the two lower first blades 131 and the lower second blade 132 do not rotate outward. The second key protrusion 164 is formed to fit into the two lower fitting holes 131a and 132a and the lower fitting holes 131a and 132a of the upper and lower sides so as to be rotated together with the lower and upper two lower blades. The lower fitting holes 131a and 132a of 130 are extrapolated to fit the outer peripheral surfaces of the lower first key protrusion 163 and the lower second key protrusion 164, so that the lower first key protrusion 163 and the lower second protrusion 163 are extrapolated. It is characterized in that it rotates together with the key doljo (164).

Here, at least one flat surface 163b and 164b is formed on the outer peripheral surfaces of the lower first key protrusion 163 and the lower second key protrusion 164, and the upper fitting hole 120a and the lower fitting hole ( 131a and 132a), at least one straight line portion 120a', 131a'132a' is formed to correspond to the at least one flat surface 163b, 164b, so that the upper blade 120 and the lower blade 130 are formed. is extrapolated to be fitted to the lower first key protrusion 163 and the lower second key protrusion 164 on which the at least one flat surface 163b and 164b are formed, so that the rotating shaft does not rotate with respect to the rotating shaft 110 and the rotating shaft ( 110) and is characterized in that it rotates integrally.

In addition, a screw groove 142a ′ for screwing with the main screw portion 110a is formed in the lower hole 142a of the lower spacer 142 .

As described above, preferred embodiments according to the present invention have been reviewed, and it is common knowledge in the technical field that the present invention can be implemented in other specific forms without changing the technical spirit or essential features in addition to the above-described embodiments. It is self-evident to those who have Therefore, it should be understood that the above-described embodiments are illustrative and not restrictive.

The scope of the present invention is indicated by the following claims rather than the above detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention.

100: In the blade bundle 100 for a mixer according to an embodiment of the present invention,
110: rotary shaft 110a: main thread part
110b: step 110c: chamfer
115: support member
115a: insertion hole 115b: support groove groove
117: crimped tightening nut
117a: screw hole 117a': screw groove
120: upper blade 120a: upper fitting hole
120a': the straight part of the upper fitting hole 120b: the boundary between the first bending part and the flat part
120c: boundary between the second bending part and the flat part θ: inclination angle
121: flat part
122: first bending part 122a: first cutting blade part
123: second bending part 123a: second cutting blade part
d1: the first separation distance d2: the separation distance between the lower blades
130: lower blade
131: lower first blade 131a: lower fitting hole
131a': the straight part of the lower fitting hole
132: lower second blade 132a: lower fitting hole
132a': the straight part of the lower fitting hole 133: the third lower blade
134: fourth lower blade d2: second separation distance
141: upper spacer 141a: upper hole
141a': screw groove
142: lower spacer 142a: lower hole
142a': screw groove 142-1: lower first spacer
142-2: lower second spacer 142-3: lower third spacer
150,160: blade connection member
150: bushing 150a: through hole
150b: flat surface 150c: first threaded portion
161: upper first key protrusion 161b: flat surface
162: upper second key protrusion 162b: flat surface
163: lower first key protrusion 163b: flat surface
164: lower second key protrusion 164b: flat surface

Claims (4)

In a mixer comprising a main body in which a motor is built, and a container installed in the main body and having a blade provided therein, which is a pulverizing and cutting space,
A rotating shaft 110 that is shaft-connected to a motor built into the main body of the mixer and rotates according to the rotation of the motor;
An upper blade 120 that is installed on the rotary shaft 110 and rotates integrally with the rotary shaft 110,
The lower blade 130 is spaced downward from the upper blade 120 by a first separation distance d1 and is installed on the rotary shaft 110 to rotate integrally with the rotary shaft 110,
An upper spacer 141 that is axially installed on the rotary shaft 110 between the upper blade 120 and the lower blade, and maintains a first separation distance d1 between the upper blade 120 and the lower blade 130 ) It consists of
A main screw part 110a is formed on the outer peripheral surface of the upper side of the rotary shaft 110,
A support member 115 that is axially installed on the rotary shaft 110 under the lower blade and supports the lower blade 130,
The rotating shaft ( It is screwed to the main screw part 110a of 110) so that the lower blade 130, the upper spacer 141, and the upper blade 120 are compressed with the support member 115 therebetween. It consists of further including
A step 110b is formed on the rotary shaft 110,
The support member 115 is supported by the step 110b of the rotary shaft 110 and is axially installed on the rotary shaft 110,
The support member 115 is formed with an insertion hole 115a to be inserted into the rotary shaft 110,
A support groove (115b) for being concave outward in the radial direction from the insertion hole (115a) to be supported on the step (110b) is formed,
A screw hole 117a in which a screw groove 117a' for screwing with the main screw part 110a is formed is formed through the center of the compression tightening nut 117,
An upper hole 141a is formed in the upper spacer 141 in the longitudinal direction so as to be extrapolated to the rotary shaft 110,
The lower blade 130 is axially installed on the rotary shaft 110 in plurality,
A lower spacer 142 that is axially installed on the rotary shaft 110 between the plurality of lower blades 130 and maintains a separation distance d2 between the plurality of lower blades is further included and is configured,
The lower blade 130, the lower spacer 142, and the lower blade 130 are sequentially supported in close contact with the support member 115,
The compression tightening nut 117 is screwed to the main screw portion 110a, and by pressing and tightening the upper blade 120 downward, the lower blade 130 and the lower spacer 142 with the support member 115 interposed therebetween. and the lower blade 130 and the upper spacer 141 and the upper blade 120 are pressed and fixed at the same time,
The upper blade 120 is,
An upper fitting hole 120a is formed in the center and a flat portion 121 of a flat shape,
a first bending part 122 bent upwardly from one side of the flat part 121;
It is configured to include a second bending part 123 bent upwardly from the other side of the flat part 121,
The lower blade 130 is formed in a flat shape parallel to the flat portion 121 and the horizontal direction,
A first cutting blade portion 122a is formed on one side of the first bending portion 122 to face the rotational direction,
A second cutting blade portion 123a is formed opposite to the first cutting blade portion 122a in a diagonal direction and facing the rotation direction on the other side of the second bending portion 123,
The first bending part 122 is bent obliquely with respect to the flat part 121, so that the boundary 120b between the first bending part 122 and the flat part 121 is formed in an oblique shape,
The second bending part 123 is bent obliquely with respect to the flat part 121 so as to be parallel to the boundary 120b between the first bending part 122 and the flat part 121 , so that the second bending part The boundary 120c between the 123 and the flat portion 121 is formed in an oblique shape,
The boundary 120c between the second bending part 123 and the flat part 121 forms an oblique shape at an angle of an oblique angle θ with respect to the remaining sides other than one side and the other side of the flat part 121,
The boundary 120b between the first bent part 122 and the flat part 121 forms an oblique angle at an angle of an oblique angle (180 - θ) with respect to the remaining sides other than one side and the other side of the flat part 121 , there is,
The flat portion 121 has a quadrangular flat shape, and the remaining two sides other than one side and the other side of the flat portion 121 are formed as straight sides parallel to each other, so that the flat portion 121 is parallel to each other. becomes a quadrilateral,
In the flat portion 121, one side and the other side opposite to the side are short sides,
The other two sides of the flat portion 121 are long sides,
The bending parts 122 and 123 are bent at the short side,
The rotary shaft 110 has a round bar shape,
An upper fitting hole 120a is formed in the center of the upper blade 120,
Lower fitting holes 131a and 132a are formed in the center of the lower blade 130,
It is fastened to the rotary shaft 110, rotates integrally with the rotary shaft 110, and is fitted to the upper fitting hole 120a and the lower fitting hole 131a, 132a to match the upper blade 120 and the lower blade. (130) is configured to further include a blade connecting member 150 to rotate integrally with the rotary shaft (110) without turning,
A main screw part 110a is formed on the outer peripheral surface of the upper side of the rotary shaft 110,
The blade connecting member 150 has a through hole 150a formed in the longitudinal direction, and the through hole 150a has a first screw fastened with the main screw portion 110a in order to be fastened to the rotary shaft 110 . 1 is composed of a tube-shaped bushing 150 that is coaxially fastened to the outer circumferential surface of the rotary shaft 110 as a threaded part 150c is formed,
The outer peripheral surface of the bushing 150, when the bushing 150 rotates integrally with the rotary shaft 110, the upper blade 120 and the lower blade 130 can be rotated together with the bushing 150 without rotating outward. It is formed to fit into the upper fitting hole (120a) and the lower fitting hole (131a, 132a) so as to
The upper fitting hole 120a and the lower blade 130 of the upper blade 120 are extrapolated to fit the lower fitting holes 131a and 132a on the outer circumferential surface of the bushing 150 and rotate together with the bushing 150. ,
At least one flat surface 150b is formed on the outer peripheral surface of the bushing 150 in the height direction, and the at least one flat surface 150b is formed in the upper fitting hole 120a and the lower fitting hole 131a and 132a. Corresponding to at least one straight line portion (120a', 131a'132a') is formed, the upper blade 120 and the lower blade 130 is a bushing 150 in which the at least one flat surface 150b is formed. It is extrapolated to fit into the rotary shaft 110 and rotates integrally with the rotary shaft 110 without turning around,
The bushing 150 has a flat outer circumferential surface is formed in a square shape, and the upper fitting hole 120a and the lower fitting hole 131a and 132a are formed in a square hole that is mated with the square bushing,
The bushing 150 is a blade bundle for a blender, characterized in that it is formed in a quadrangular tube shape.
The method according to claim 1,
When the upper blade 120 and the lower blade 130 are all three, one upper insertion hole 120a and the two lower insertion holes 131a and 132a are sequentially formed at intervals of 120 degrees. A bundle of blades for a blender.
The method according to claim 1,
When the upper blade 120 and the lower blade 130 are all four, one upper insertion hole 120a and three lower insertion holes 131a and 132 are sequentially formed at intervals of 90 degrees. A bundle of blades for a blender. delete

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