JPS5833892Y2 - Clutch mechanism in mixer for food processing - Google Patents

Description

[Detailed description of the invention] The present invention relates to a clutch mechanism in a food processing mixer, and more specifically, a plurality of clutch mechanisms are installed at a slight interval in the axial direction of an idle shaft of a drive power transmission system, and the clutch The present invention relates to a clutch mechanism in a mixer that allows multi-stage switching to be easily performed with a single drive motor by switching the mechanism.

Stirring mechanism In a so-called mixer, for example, during the stirring, mixing, or other addition stages of bread dough, etc., it is necessary to switch the rotation of the stirring shaft in multiple stages depending on the processing conditions.

In the past, a single mixer was equipped with a plurality of drive motors, and by switching the motors, a large number of rotations corresponding to the processing conditions were obtained.

In this way, conventionally, in order to perform multi-stage speed change, if you wanted to change multiple motors for a single mixer, for example, the stirring shaft to four stages, you would need two drive motors that rotate in forward and reverse directions. .

Therefore, it has disadvantages such as being expensive and having a complicated structure.

The present invention was devised to solve the above-mentioned drawbacks, and by incorporating multiple clutch mechanisms into the idle shaft and switching the mechanisms with one-touch operation, a single drive motor can perform multi-stage operation. To provide a clutch mechanism for a mixer for food processing that is low in price and has a simple structure, allowing extremely easy switching.

The embodiment of the present invention shown in the drawings will be explained below.
In FIG. 1, reference numeral 1 denotes a casing, and within the casing 1 an idle shaft 2 is rotatably supported.

The idle shaft 2 is provided with a first gear 3, a second gear 4, and a third gear 5 at appropriate intervals in the axial direction in FIG.
and the fourth gear 6 is supported for free rotation.

In this example, the first gear 3 has 25 teeth,
The second gear 4 has 22 teeth, the third gear 5 has 20 teeth, and the fourth gear has 30 teeth.

A clutch pawl 7 is provided on the opposing surfaces of the first gear 3 and the second gear 4.
8 are provided respectively.

A clutch 9 is positioned between these clutch pawls 7 and 8, and the clutch 9 is attached to the idler shaft 2 so that it can slide in the axial direction and cannot rotate.

That is, the key 10 and the keyway 11 are linked so that the idle shaft 2 can perform the above-described functions.

The clutch 9 has pawls 12.13 at the upper and lower ends in FIG. 1, and these pawls 12.13 are engaged with either of the pawls 8 and 7.

Sliding of the clutch 9 is performed by a fork-like operating plate, which will be explained later.

The clutch 9 has an annular recess 14 formed in its center.

Similar to the above structure, clutch pawls 15 and 16 are also provided on the opposing surfaces of the third gear 5 and the fourth gear 6, respectively.

A clutch 17 is located between these pawls 15 and 16,
The clutch 17 is attached to the idler shaft 2 so that it can slide in the axial direction and cannot rotate.

That is, the key 18 and the keyway 19 are linked together so that the idle shaft 2 can perform the above functions.

The clutch 17 has pawls 20 and 21 at the upper and lower ends in FIG.
These claws 20.21 are engaged with any of the claws 16.15.

Sliding of the clutch 17 is performed by a fork-shaped operating plate, which will be explained later.

An annular recess 22 is provided in the center of the clutch 17.

Tengu shaft 23 adjacent to the above idle shaft 2
is arranged so that it can rotate.

A fifth gear 24 and a sixth gear 25 are respectively mounted on the tengu shaft 23.

In this example, the fifth gear 24 has 29 teeth,
The sixth gear 25 has a tooth height of 39 teeth.

The fifth gear 24 is meshed with the fourth gear 6, and the sixth gear 24 is meshed with the fourth gear 6.
5 meshes with the fourth gear 5, respectively.

The lower end of the tengu shaft 23 passes through a tengu 26 which is relatively rotatably provided at the lower end of the casing 1, and supports the tengu 26.

A protrusion 26a is integrally provided on the tengu 26, and a stirring shaft 26b is rotatably supported on the protrusion 26a.

A pinion 27 is attached to the stirring shaft 26b.

An attachment not shown in the drawings is removably attached to the end of the stirring shaft 26b.

A pinion 27 of the stirring shaft 26b is meshed with an internal gear 28 fixed to the casing 1.

In this example, the number of teeth of the internal gear is 50,
The pinion 27 has 13 teeth.

Reference numeral 29 denotes a human power shaft, and a seventh gear 30, an eighth gear 31, and a ninth gear 32 are respectively mounted on the human power shaft 29.

In this example, the seventh gear 30 has 24 teeth,
The eighth gear 31 has 20 teeth, and the ninth gear 32 has 17 teeth.

The seventh gear 30 is meshed with two worm gears 33, and the worm gears 33 are attached to the shaft 34 of the drive motor M.

In this example, the drive motor M has a rotation speed of 130 rpm per minute.

In FIGS. 2 and 3, reference numeral 35 denotes an operating plate support rod, and the rod 35 has a fork-shaped operating plate 36.3.
7 is a slidable insert.

The fork portions of the operating plates 36, 37 are fitted into the annular recesses 22, 14 of the clutches 17, 9, respectively.

The operating plate 36 is always pushed downward in FIG. 3 by the spring 38, and the operating plate 37
9 is constantly pushed upward in FIG.

Cam rollers 40.41 are provided on the operation plates 36.37, and a cam plate 42 is positioned between the cam rollers 40.41.

The cam plate 42 can be rotated freely from outside the casing 1 using a handle 43.

The cam plate 42 is formed in the shape shown in FIG.

First stage cam action section 43, second stage cam action section 44
, third stage cam action section 45, fourth stage cam action section 4
It is equipped with 6.

Each of the cam action parts of the cam plate 42 is switched by the handle 4.
Switching can be done with one touch by rotating at 3.

Next, the action will be explained.

To switch the first stage switching operation cam plate 42 to the first stage, the handle 43 is rotated to rotate the cam plate 42 and the first stage cam action portion 43 is brought into contact with the cam roller 41 .

That is, the cam action portion 43 of the cam plate 42 is connected to the cam roller 4.
1 is pushed downward in FIG. 3, the operation plate 37 is moved downward in FIG. 3 against the force of the spring 39.

As a result, the operating plate 37 moves the clutch 9 downward in FIG. 1, and the pawl 13 of the clutch 9 is engaged with the pawl 7 of the first gear 3.

At this time, the cam plate 42 separates from the cam roller 40, as shown in FIG. 4, and the operating plate 36 becomes free and is pushed downward in FIG. 3 by the spring 38.

As a result, the pawl 21 of the clutch 17 becomes the pawl 1 of the third gear 5.
It is engaged with 5.

Thus, by rotating the rotating shaft 34 of the drive motor M, the worm gear 33 rotates the seventh gear 30.

By rotating the seventh gear 30, the input shaft 29 is rotated.

As the input shaft 29 rotates, the eighth gear 31 and the ninth gear 32 are also rotated together with it.

The second gear 4 that meshes with the eighth gear 31 is freely rotated around the idle shaft 2.

The ninth gear 32 transmits driving force to the first gear 3 and rotates the idle shaft 2.

The rotation of the idle shaft 2 causes the third gear 5 to rotate, and the sixth gear 25 that meshes with the third gear 5 to rotate.

The tengu shaft 23 is rotated by the rotation of the sixth gear 25.

Further, the fourth gear 6 that meshes with the fifth gear 24 is freely rotated around the idle shaft 2.

As the tengu shaft 23 rotates, the tengu 26 also rotates together with it, and the pinion 27 engages with the internal gear 28, causing the attachment attached to the stirring shaft 26b to revolve and rotate.

Therefore, the attachment revolves once inside the stirring ball, and in this case the stirring shaft 26
Second stage switching operation To switch the cam plate 42 to the second stage, the cam plate 42 is rotated by the handle 43 and the cam action part 44 is brought to the cam roller 41.

Then, since the cam roller 41 separates from the cam plate 42,
The operating plate 36 is in a free state and is pushed upward in FIG. 3 by a spring 39.

Therefore, the operating plate 37 pushes the clutch 9 upward in FIG. 1, and the pawl 12 of the clutch 9 is engaged with the second gear 4.

Further, since the cam roller 40 also separates from the cam plate 42, the operating plate 36 becomes free, and therefore the operating plate 36 is pushed down in FIG. 3 by the acting force of the spring 38.

However, the pawl 21 of the clutch 17 is connected to the pawl 15 of the third gear 5.
The driving force is transmitted from the eighth gear 31 to the second gear 4.
The signal enters, rotates the idle shaft 2, and is further transmitted from the third gear 5 to the sixth gear 25.

As a result, the tengu shaft 23 is rotated, and the attachment rotates on its own axis while being revolved via the pinion 27 and internal gear 28 in the same manner as described in the first stage.

In this case, the stirring shaft 26 b is configured such that, in order to switch the third stage switching operation cam plate 42 to the third stage, the cam plate 42 is rotated by the handle 43 to bring the cam action part 45 into contact with the cam roller 41 and the cam plate 42 is moved to the third stage. The plate 42 is brought into contact with the cam roller 40.

That is, similarly to the first stage switching operation described above, the clutch 9 is shifted downward in FIG. 1, and the clutch 17 is shifted upward in FIG. 1, and the driving force from the human power shaft 29 is in the first stage. It is transmitted in the lineage described.

In this case, the stirring shaft 26 b is operated by rotating the cam plate 42 with the handle 43 to bring the cam action section 46 to the cam roller 41 in order to switch the fourth stage switching operation cam plate 42 to the fourth stage.

This results in a driving force transmission system similar to that described in the second stage switching operation.

Since the stirring shaft 26b in this case has the configuration described in detail above, the rotation ratio can be adjusted by switching the multi-stage clutch built into the idle shaft with a single cam plate by one-touch operation of the handle. Various changes can be made.

Therefore, since a single drive motor can perform multi-speed changes corresponding to various processing conditions, there is no need to equip multiple motors as in the past.

In addition, since only one-touch switching of the handle is required, the operation is simple, the structure is simple, and the cost is low.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a longitudinal sectional view of the main part, FIG. 2 is a plan view taken from the direction A-A in FIG. 1, and FIG.
3 is a front view seen from direction B in FIG. 2, and FIG. 4 is an explanatory diagram of the cam plate. Explanation of symbols: 2 is the idle shaft, 3 is the first gear, 4 is the second gear
Gears, 5 is the third gear, 6 is the fourth gear, 9.17 is the clutch, 23 is the tengu shaft, 26 is the stirring shaft, 27 is the pinion, 28 is the internal gear, 29 is the human power shaft, 30 is the seventh gear, 31 is the eighth gear, 32 is the ninth gear, and M is the drive motor.

Claims (1)

[Scope of utility model registration request] A tengu shaft 23 and an input shaft 29 provided adjacent to the idle shaft 2; a first gear 3, a second gear 4, a third gear 5, and a fourth gear 6, which are rotatably supported on the idle shaft 2; , a clutch 9 that is slidably but non-rotatably fitted onto the idle shaft 2 between the first gear 3 and the second gear 4 and engaged with either the first gear 3 or the second gear 4; , a clutch 17 that is slidably but non-rotatably fitted onto the idle shaft 2 between the third gear 5 and the fourth gear 6 and engaged with either the third gear 4 or the fourth gear 6; , the ninth gear 32 meshing with the first gear 3, and the second
An eighth gear 31 and a seventh gear 30 that mesh with the gear 4 are respectively pivotally attached to the input shaft 29, and a single drive motor M that drives the seventh gear 30 and a sixth gear 25 that meshes with the fourth gear 6 are respectively mounted. A tengu 26 that is pivotally attached to the tengu shaft 23 and held by the shaft 23, an internal gear 28 that meshes with a pinion 27 that is pivotally attached to a stirring shaft supported by the tengu 26, and the clutches 9 and 17 described above. 1. A clutch mechanism in a food processing mixer, characterized in that it is provided with means for switching operation.