JPS58402Y2 - food cooking machine - Google Patents

Description

[Detailed explanation of the idea] This invention is a juicer with a main body that houses a motor.

This invention relates to a food cooking machine that can be replaced with various cooking attachments such as a mixer and a food slicer.

In general, food cooking machines that can use the various cooking attachments mentioned above (hereinafter referred to simply as attachments) have a high-speed drive shaft and a low-speed drive shaft on the main body in order to obtain a rotation speed suitable for each attachment. It is provided.

It is possible to directly attach the high-speed drive shaft, that is, the rotary shaft of the motor, to an attachment such as a mixer, but if the high-speed and low-speed drive shafts are driven by the same motor, The following problems arise.

In other words, in order to transmit power from a motor attached directly to an attachment such as a mixer to a low-speed drive shaft, if the motor is fixed inside the main body, for example, when used as a mixer, the power will be transferred to a high-speed drive shaft. generates large vibrations and noise due to the uneven load applied.

For this reason, various methods have been devised to mount the motor in mixers, which are dedicated machines, in order to prevent the generation of vibration and noise caused by uneven loads on the motor. Even in modern food cooking machines, if you try to attach other attachments to the low-speed drive shaft connected to the motor that drives the high-speed drive shaft, such as a mixer, you can prevent the generation of vibration and noise and reduce the power consumption. It is necessary to make communication possible.

The present invention was developed in view of the above points, and its purpose is to drive high-speed and low-speed drive shafts with the same motor, and to reduce vibration and noise caused by uneven loads on the motor. It is an object of the present invention to provide a device that prevents the above problems and accurately transmits power to a low-speed drive shaft.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

Reference numeral 1 denotes a box-shaped main body made of a resin material, which includes a motor storage case 1a in which an attachment 14 such as a mixer that requires high-speed drive is placed on the top and a motor 2 is housed therein, and a low-speed drive such as a food slicer is placed on the side of the motor storage case 1a. It is integrally formed with a pedestal 1b on which an attachment 15 that requires driving is placed.

The motor 2 is connected to rotating shafts 2 a and 2 b from both sides.
The rotating shafts 2 a and 2 b are arranged vertically and protruded from each other, and the stepped screws 17 loosely fit into the plurality of mounting holes 1 g bored in the upper part of the motor storage case 1 a to secure the mounting holes 1 g.
A washer-like rubber cushion 1 made of elastic material is placed on the top and bottom of the
6.16' is clamped and hung vertically.

Further, a connecting member 18 for removably connecting the cutter blade 14b of the attachment 14 is integrally attached to the rotating shaft 2a projecting upward from the motor 2. A pulley 3 is integrally attached to 2b.

Reference numeral 4 denotes a low-speed drive shaft formed in a cylindrical shape, which is attached to the pedestal 1b.
The lower end is rotatably supported by a bearing member 19 with its upper end facing through an insertion hole 1C drilled in the center of the pedestal 1b, and is vertically disposed parallel to the rotating shafts 2a and 2b. A pulley 5 is integrally attached to the.

A belt 6 is wound around the pulleys 3 and 5 to drive the pulleys 3 and 5, and the drive shaft 4 is rotated at a reduced speed by the motor 2 through belt transmission.

7 is disposed between the motor 2 and the drive shaft 4, and is configured to adjust the tension of the belt 6 when the distance between the axes of the pulleys 3 and 5 changes due to vibration due to an unbalanced load applied to the motor 2. This is a belt tensioning device.

This consists of a pushing rod 8 whose front end receives the motor 2 and moves left and right, and a roller 12 connected to the other end of the pushing rod 8 and provided at its tip, which is brought into contact with the tensioning direction of the belt 6 and rotated. It consists of a pressure lever 10 which is movably mounted.

The pushing rod 8 is formed in an L-shape, and has a front end 8b.
extends in the form of a strip and receives the motor 2 by means of screwing or abutting, and the other end 8a has a collar 8C integrally protruding from its base and extends in the shape of a shaft to be inserted into the main body 1. The collar 8C is inserted and supported so as to be movable left and right (as shown in FIG. 1) through an insertion hole bored laterally in the support base 1d protruding from the support base 1d.
A coiled spring 9 is inserted between the support base 1d and the motor 2, and receives the motor 2 together with one end 8b of the pushing rod 8.

The pressure lever 10 is formed in a dogleg shape, and its central portion is rotatably supported on a support shaft 1e protruding from inside the main body 1, and the tip 10b is supported by a cylindrical support shaft 10d with a head. A long hole 10C is opened in the elongated direction at the rear end 10a, and a small diameter portion protrudes from the tip of the other end 8a of the pushing rod 8 into the long hole 10C. 8d is slidably inserted, and the retaining ring 11 is fixed to the insertion end via the washer 20 to prevent it from coming off, thereby connecting the pushing rod 8 and the pressure lever 10. is brought into contact with the slack side of the belt 6 in the tension direction to tension the belt 6,
The tension lever 10 is rotated in conjunction with the horizontal movement of the pushing rod 8 to adjust the tension of the belt 6.

Adjustment of the tension of the belt 6 is related to the length of the belt 6.

Now, the distance between the axes of pulley 3.5 is l, and the diameters of pulleys 3 and 5 are each d3. If the thickness of the belt 6 is ignored as d5, the length L of the belt 6 is generally:
is given by

However, the distance l between the shafts changes because the motor 2 vibrates due to the uneven load and tilts around the mounting portion of the motor 2 as a fulcrum.

Assuming that the maximum distance between the axes due to this change is lmax, the length Lmax of the bells 1-6 at this time is given by the above equation.

Similarly, if the minimum distance between the axes due to change is Lin,
The length Lrn1a of the belt 6 is as follows.

Therefore, when the distance between the shafts is l, the distance between the shafts changes to l-+l maX, l-+l min, and as a result, the length of the belt 6 also changes to L-+L maX,
The change in length of the belt 6 + Lmax-L, L-Lm+n)
If this is adjusted by the belt tensioning device 7, even if the distance between the shafts changes due to the vibration of the motor 2, the belt 6 will be given a tension suitable for power transmission.

Therefore, as the length of the belt 6, the length Lmax when the distance between the axes is maximum is selected, and it is wound between the pulleys 3 and 5, and this length Lmax is passed by the roller 12 when the distance between the axes is 1 o'clock. The slack side of the belt 6 is pressed so as to give the same tension as when the length L of the belt 6 is wrapped around the belt 6, so that the tension is suitable for power transmission.

The range of left and right movement of the pushing rod 8 is determined by the above-mentioned distance between the axes l-
+1 ma can be adjusted.

Note that 1f and If' are guides for guiding the horizontal movement of the pushing rod 8, and are formed in the main body 1 so as to protrude from both sides of the pushing rod 8.

Further, the high-speed drive attachment 14 is placed on the upper part of the motor housing 1a, and the rotating shaft 14a to which the cutter blade 14b is attached is connected to the connecting member 18 so as to be movable together.

Further, the low-speed drive attachment 15 is placed on the pedestal 1b, and the tip of the rotating shaft 15a with the cutter blade 15b attached thereto passes through the insertion hole 1C and is inserted into the low-speed drive shaft 4 in a freely removable manner. They are designed to rotate together.

Next, when using a high-speed drive attachment 14 such as a mixer, attach the attachment 1 to the top of the motor housing 1a.
4 is mounted, and its rotating shaft 14a is connected to the rotating shaft 2a of the motor 2 via the connecting member 18.

Thereafter, the motor 2 is started by putting food into the attachment 14 and turning on a switch (not shown).

As a result, the rotation shaft 14a of the attachment 14 rotates at high speed and the food is cooked by the cutter blade 14b.

At this time, the motor 2 vibrates due to the unbalanced load.

However, since the motor 2 is suspended vertically by sandwiching the rubber cushion 16.16', the vibration is received and buffered by the rubber cushion 16.16'.
This prevents the propagation of vibrations to the main body 1 and the generation of noise in this part.

On the other hand, the pushing rod 8, which moves left and right following the vibration of the motor 2, compresses the spring 9 when the motor 2 swings in a direction that reduces the distance between the axes of Boo'J-3 and 5. Right movement (
In FIG. 1), the rear end 10a of the tension lever 10 is pushed, so the tension lever 10 rotates about the support shaft 1e as shown by the arrow, and the roller 12 moves the slack side of the belt 6. Press it further to apply tension to the belt 6 so that it does not loosen.

When the motor 2 swings in a direction that increases the distance between the axes between the pulleys 3 and 5, the compressed coiled spring 9 releases its accumulated biasing force, and the push rod 8 moves the motor 2. Following this, the pressure lever 10 is moved to the left (in FIG. 1) and the rear end 10a of the pressure lever 10 is pulled to rotate the pressure lever 10 in the opposite direction of the arrow around the support shaft 1e. 12 is moved so that the pressing force is reduced and adjusted so that the belt 6 is not stretched too much.

In this manner, the belt tensioning device 7 adjusts the tension of the belt 6 in response to changes in the distance between the axes of the pulleys 3 and 5 that changes due to vibrations of the motor 2.

Push rod 8 that moves left and right when adjusting the tension of the belt 6
The other end 8a is fitted and connected to the pressure lever 10 through the elongated hole 10C, so that the linear left and right movement of the push rod 8 and the rotation of the pressure lever 10 are smoothly linked. It is done.

In addition, low-speed drive attachments such as food slicers 15
When using the attachment 15, attach it to the pedestal 1b.
The tip of the rotating shaft 15a is inserted into and connected to the drive shaft 4.

Then, by turning on a switch (not shown), the motor 2 is started, the rotation shaft 15a rotates together with the drive shaft 4, and the cutter blade 15b moves the attachment 1.
5. Cook, for example slice, the food that is put into the container.

At this time, as described above, the motor 2 vibrates due to the unbalanced load, but it is buffered by the rubber cushions 16 and 16', and the main body 1 vibrates.
This prevents the propagation of vibrations to the area and the generation of noise in this area.

Also, as mentioned above, the boolean I) changes due to the vibration of the motor 2.
Since the tension of the belt 6 is adjusted by the bell I/tensioning device 7 in response to the distance between the shafts 3 and 5, power is accurately transmitted to the drive shaft 4.

Moreover, even if the cutter blade 15b of the attachment 15 is intermittently loaded and the motor 2 swings, the tension of the bolt 6 is adjusted in response to this, and the vibration to the main body 1 is adjusted by the rubber cushion 16, 16'. This prevents the propagation of noise and the generation of noise in this area.

Since the present invention is as described above, even if the high-speed and low-speed drive shafts are installed in parallel at different positions, they can be driven by the same motor, and various attachments can be used at rotational speeds suitable for these. You can force it.

Moreover, since the motor is vertically installed via a rubber cushion, even if the motor vibrates due to unbalanced loads, it is buffered by the rubber cushion, which prevents the vibration from propagating to the main body and the noise generated by it. The belt tension device adjusts the tension of the belt according to the inclination caused by the vibration of the vertically installed motor in order to transmit power to the drive shaft, so there is no chance of the belt loosening and causing the pulley to spin or come off the pulley. It is possible to maintain the tension of the belt at a constant level and transmit power accurately.

This is effective when a load is applied to the cutter blade of the attachment intermittently and the motor swings significantly.

Furthermore, since a spring is inserted in the push rod to stop the motor from being supported, it is possible to reduce changes in the distance between the pulley axes due to motor vibration, and to reduce the belt tension adjustment range. The tension device can be made smaller.

Furthermore, since vibration to the main body is prevented, movement of the device due to vibration can be prevented, and there is an advantage that the user can use the device with peace of mind even when changing various attachments.

[Brief explanation of the drawing]

FIG. 1 is a front view showing a longitudinal section of an embodiment of the present invention, and FIG. 2 is a perspective view showing the main parts of FIG. 1. 1: Main body, 1a: Motor storage case, 1b: pedestal, 2: Motor, 2a, 2b: Rotating shaft, 3.5: Pulley, 4: Drive shaft, 8: Push rod, 9: Spring, 10: Tension lever, 12
: Roller, 16.16': Rubber cushion.

Claims (1)

[Scope of utility model registration request] A cutter blade is removably attached to a rotating shaft that protrudes upward within the motor housing housing of the main body, which is integrally formed with a motor housing housing and a pedestal placed on the side thereof, and the cutter blade is attached to a rotating shaft that protrudes downward. A motor equipped with a pulley is installed vertically on the shaft via a rubber cushion, and the pulley on the motor rotation shaft and the pulley on the drive shaft, which is rotatably supported in the cradle and drives the cutter blade, are connected by a belt. The motor and the drive shaft are coupled together, and between the motor and the drive shaft there is a push rod whose one end receives the motor and which is attached to the main body via a spring so as to be movable left and right, and a long push rod at the other end of the push rod. A tensioning lever is fitted and connected through a hole, has a roller at its tip, and is rotatably attached to the main body, and the roller of this actuating lever is brought into contact with the belt in the tensioning direction, thereby tightening the belt. A food cooking machine characterized by being configured to rotate a drive shaft while maintaining constant tension.