JPH0681592B2 - Triple shaker that can swivel, reciprocate, and shake in a figure eight - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a triple shaker capable of swinging, reciprocating, and figure-eight shakes. Involved in improving the equipment.

[0002]

2. Description of the Related Art For example, a beaker for a culture test,
In a storage container such as a flask, the culture medium together with the culture solution,
In other words, after storing the DUT, in order to swirl, reciprocate or shake the figure by 8 to stir the DUT,
As is well known in the art, a swinging device of turning, reciprocating, and figure-eight motion switching type is used.

[0003] Here, a conventional swinging device of this type of swivel, reciprocating, and figure-eight motion switching type generally has a swirl, 8
An intermediate carriage is installed between the shaking device substrate and the shaking table so that the shaking table can slide in the direction perpendicular to the reciprocal shaking when both sides are shaken. It had a three-stage or three-layer structure of a shaker substrate, an intermediate carriage, and a shaker.

Further, because of the above-mentioned three-layer structure, the switching plate that slides when switching the shaking state cannot be mounted on the lower part of the shaking table.
Since it is mounted on the upper surface of the shaking table, when the object to be shaken is mounted, another cover member is used by being mounted on the upper surface of the shaking table. Therefore, each time the shaking motion is switched, the object to be shaken is removed from the cover member, or the cover member is left as it is and removed together with the cover member from the shaking table to switch the shaking motion. Moreover, the prevention of deviation in the Y direction at the time of reciprocal shaking is based on the restriction of engagement between the vane ring bearing planted on the shaking table and the narrow width fixing portion of the switching plate.

[0005]

However, as described above, the conventional swinging, reciprocating, and figure-eight switching type shaking device generally causes reciprocal shaking during both swinging and figure-8 shaking. An intermediate trolley is installed between the shaking device substrate and the shaking table so that the shaking table can slide in the right angle direction.
When viewed from the side, the structure has a three-layer structure of a shaking device substrate, an intermediate trolley, and a shaking pedestal, and even Amatsu is a four-layer or four-layer structure in which cover members are further stacked on the shaking pedestal during operation, which is a mechanical structure. However, the number of parts is large, and as a result, there are many inconveniences in use such as being bulky in terms of weight.

Also, because of the above-mentioned three-layer structure, the switching plate that slides when switching the shaking state cannot be mounted on the lower surface of the shaking table.
Since it is on the upper surface of the shaking table, the effective use area on the shaking table is small, and it is not possible to place the object to be shaken directly on the shaking table, so it is necessary to install another cover member on it.
When changing the shaking state, the object to be shaken must be moved to another place each time, or the changeover plate must be operated after the object to be shaken is moved to another place together with the cover member on the shaking table. It was

Here, the present invention has been made in order to solve such a conventional problem, and is not a three-layer structure in which an intermediate carriage is provided in a gap between a shaking device substrate and a shaking table, but a shaking device. It has a two-layer structure consisting of a substrate and a shaking table.
A switching plate that slides at the time of switching between reciprocating, swiveling, and 8-shaped shaking can be installed on the lower surface of the shaking table, and the object to be shaken itself or the object to be shaken is placed at the time of changing the shaking state as in the conventional example. It is an object of the present invention to provide a triple shaker capable of swiveling, reciprocating, and 8-shaped shaking, which can be directly switched from the outside with one touch without moving members.

[0008]

The solution to the above-mentioned problems can be achieved by adopting the novel characteristic construction means listed below by the present invention. That is, the first feature of the present invention is that the first eccentric rotation drive is performed by the drive source at a predetermined effective rotation radius.
Cam follower, a second cam follower that rotates synchronously and eccentrically at a predetermined rotation ratio with respect to the first cam follower, and a third cam follower attached to the upper end of the fixed shaft so as to rotate freely.
An apparatus substrate having a Y-direction guide means arranged orthogonal to the reciprocal shaking movement direction and an X-direction guide means arranged in the reciprocating shaking movement direction are provided, and the Y-direction is provided at the time of turning or figure 8 shaking. It has a shaking table lower frame slidably mounted on the Y direction guide means, and an operation elongated hole formed in the Y direction corresponding to the effective radius of rotation and into which the first cam follower is inserted. A shaking table mounted slidably in the X-direction by the X-direction guide means, an engagement restricting portion capable of engaging the first cam follower in the operation elongated hole, and the second and second The cam follower of No. 3 is released without restriction both depending on the sliding position, or has an engagement restriction rail that selectively engages one side, and is slidable in the X direction with respect to the shaking table, and the lower surface of the shaking table is provided. And a switching plate that is subordinated to the switching plate and is connected to the switching plate, Swivel, reciprocating, figure-eight, comprising one-touch externally operable switching actuating means for engaging and retaining the engaging restricting portion and the engaging restricting rail on the follower and the second and third cam followers, respectively, or for releasing and releasing. It is a shaker-friendly triple shaker.

A second feature of the present invention is that a first cam follower is eccentrically rotated by a drive source at a predetermined effective radius, and a second cam follower is synchronously eccentrically rotated at a predetermined rotation ratio with respect to the first cam follower. , A reciprocating third cam follower mounted idly on the upper end of the fixed shaft, and a center line of the first cam follower and a second cam follower intersecting each other and parallel to a straight line passing through at least the center of the third cam follower. Y arranged orthogonal to the shaking motion direction
An apparatus base having a direction guide means and an X direction guide means arranged in the reciprocal shaking motion direction are mounted on the Y direction guide means so as to be slidable in the Y direction at the time of turning or shaking the figure 8. A shaking table lower frame, and an operating slot formed in the Y direction corresponding to the effective radius, into which the first cam follower is inserted, and slidable in the X direction by the X direction guide means. A shaking table to be mounted, and an engagement restricting rail that forms a sandwiching restricting part that selectively engages the first cam follower and the second and third cam followers at a sliding position, A switching plate mounted on the lower surface of the shaking table so as to be slidable in the X direction with respect to the shaking table, and linked to the switching plate, the first cam follower, the second cam follower, and the third cam follower. Engages and holds the engagement regulation rail as an alternative to the cam follower Formed by configured with a one-touch external operating freely switching operation means pivoting for reciprocating a shaped shaking freely triple shaker 8.

[0010]

Therefore, according to the present invention, the shaking table lower frame is slidable in the Y direction via the Y direction guide means on the apparatus substrate.
The shaking table is moved to the X direction through the X-direction guide means of the lower frame of the shaking table.
Since the respective units are mounted so as to be slidable in any direction, the shaking table can be freely slid in the two-dimensional X, Y directions with respect to the device substrate. In this state, the shaking table is provided on the device substrate. The first cam follower, which is eccentrically driven to rotate, is inserted into the operation elongated hole formed in the Y direction of the shaking table, and is slid in the X direction on the inside of the shaking table lower frame and on the lower surface of the shaking table. Since the engagement restricting portion or the sandwiching restricting portion of the switching plate that is movably mounted on the switching plate allows the first cam follower to be engaged and retained or released and released in the operation elongated hole, By the engagement holding of the first cam follower by the restricting portion or the sandwiching restricting portion, the Y-direction sliding of the first cam follower in the operating long hole is prevented, and the swinging motion is given to the shaking table. Can be done.

Depending on the separation and release, the Y-direction sliding of the first cam follower within the actuating slot is allowed, and the third cam follower at the upper end of the fixed shaft provided on the shaking base plate and the switching plate. By engaging and holding the engagement restricting rail of (1), it is possible to break the Y-direction sliding of the shaking table lower frame and to give the shaking table a reciprocal shaking motion in the X direction. In a state where the first cam follower is disengaged and released, the engagement restriction rail is removed from the third cam follower at the upper end of the fixed shaft, and the second cam is eccentrically rotated at a predetermined ratio with respect to the first cam follower. When the cam follower is engaged and held, since the engagement restricting rail is two rails parallel to the X direction, the X of the second cam follower is
The second cam follower is rendered ineffective by sliding the second cam follower between the engagement restriction rails in parallel with the X direction, and the shaking table can be given a reciprocal shaking motion in the Y direction. By combining the two movements of Y and Y, it is possible to give the shaking table an 8-shaped shaking movement.

[0012]

【Example】

(First Embodiment) A first embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a plan view of a triple shaker capable of swinging, reciprocating, and figure-eight shaking according to the present embodiment in a state of swinging and shaking, FIG. 2 is a plan view of the same / reciprocal shaking state, and FIG. Fig. 4 is a plan view in the state, Fig. 4 is a vertical sectional view taken along line VI-VI in Fig. 1,
5 is a vertical sectional view taken along the line V-V in FIG. 1, and FIG. 6 (a) is a motion correlation diagram between the first and third cam followers and the switching plate and the operating long holes of the shaking table in the swinging and shaking state, FIG. 11B is a motion correlation diagram between the first and third cam followers and the switching elongated holes of the switching plate and the shaking table in the reciprocating shaking state.

FIGS. 7 to 14 show the figure 8-shaped shaking of this embodiment. (A) is the movement and locus of movement of the first cam follower and the second cam follower on the shaking table, and (b) is the above-mentioned movement. It is a figure showing stepwise a figure-8 locus which is a combination of two movements. 15 is a plan view of the shaking table, FIG. 16 is a right side view of the same, FIG. 17 is a plan view of a switching plate, and FIG. 18 is a right side view of the same.

In the figure, reference numeral 1 denotes a device substrate, which is mounted on a device base 3 on which a vibration-proof seat 2 and the like are appropriately arranged so as to be able to absorb vibrations, through individual columns 4. The drive type motor 5 is fixed between the device substrate 1 and the device base 3, and the double small V-belt is provided on the rotary shaft 5a of the motor 5 protruding from the device substrate 1. A double V-belt 7 that receives rotation from the pulley 6 is provided,
The V-belt 7 is a double-type large V-belt pulley 1 for eccentrically rotating the first cam follower 8 about a rotation support shaft 9.
Received 0.

Below the large V-belt pulley 10, there is provided a timing pulley 11 which is rotated about the same rotary support shaft 9, and the timing pulley 11 is centered on a rotary support shaft 9'through a timing belt 12. It is tied to the rotating timing pulley 13. The number of teeth of each of the timing pulleys 11 and 13 is set to, for example, 30 and 60, that is, 1: 2, so that the timing pulleys 11 and 13 rotate at a ratio of 2: 1. As a result, the second cam follower 14 provided on the timing pulley 13 eccentrically rotates about the rotation support shaft 9 '.

Further, on the device substrate 1, the large V-belt pulley is provided on a parallel line passing through a rotation support shaft 9'as an eccentric rotation center of the second cam follower 14 and in a shaking table reciprocating shaking direction (X direction). A third cam follower 15, which is attached to the upper end of the fixed shaft so as to rotate freely, is erected at a position where 10 does not interfere. The top of the first cam follower 8 is a shaking table 16
Since it is engaged and held by being sandwiched between the operation elongated hole 17 and the engagement restricting portion 19 of the switching plate 18, it projects higher than the lower surface of the shaking table 16, but the second cam follower 14 and the third cam follower at the upper end of the fixed shaft. Each of the top ends of 15 has a switching plate 18
The height is not reached to the lower surface of the shaking table 16 because the engagement is held only by being sandwiched by the parallel engagement regulation rails 33, 33. The first cam follower 8 which rotates eccentrically is fitted in an operation long hole 17 penetrating the shaking table 16 so as to be freely movable in the Y direction.

On the other hand, in the case of the present embodiment, with respect to the apparatus substrate 1, a direction orthogonal to the movement direction of the reciprocal shaking action among the shaking actions (here, it is orthogonal to the movement direction of the reciprocal shaking action hereinafter). The direction is called the [Y direction], and the direction parallel to the reciprocal shaking action is also called the [X direction].
Y-direction guide rods 21 and 21 whose both ends are fixed and supported by fixing pieces 20 and 20 are laterally installed.

Reference numeral 22 denotes a shaking table lower frame. The shaking table lower frame 22 includes a pair of frame plates 23, 23 on the front and rear sides corresponding to the Y direction, and left and right corresponding to the X direction. A pair of X-direction guide rods 21 ', 21' on both sides
And each of these X-direction guide rods 2
1 ′ and 21 ′ are between both ends of each frame plate 23, 23, and are assembled in a frame shape so as to be laterally bridged in a direction corresponding to the X direction, and each frame plate 23,
From the outer side surface of 23, a pair of guide rollers 24, 24 is formed so as to project and pivot in correspondence with the Y direction. And, regarding the shaking table lower frame 22,
For each of the Y-direction guide rods 21 and 21,
By using the guide rollers 24, 24 of each set of the frame plates 23, 23 and sandwiching them from above and below,
The respective Y-direction guide rods 21 and 21 can be freely slid toward the Y-direction.

Further, on the plate surface of the shaking table 16, a first cam follower 8 as an output end is provided for obtaining three kinds of different shaking and stirring actions of the above-mentioned swiveling, reciprocating, and 8-shaped movement. The effective major axis R1 (= r1 + Δ) which is slightly larger than the rotation diameter r1 by the allowable gap (Δ1).
The operation elongated hole 17 of 1) is provided so as to extend through the Y direction as a long axis, and on both left and right sides of the shaking table 16 parallel to the X axis,
Each set of guide rollers 25, 25 is projectingly and pivotally supported, and this shaking table 16 receives the first cam followers 8 by inserting them into the operating elongated holes 17 as described above. Each of the above X by the guide rollers 25, 25
By mounting the directional guide rods 21 ', 21' so as to be sandwiched from above and below, the X-direction guide rods 21 ', 21' can freely slide in the X direction.

Further, as shown in FIGS. 15 and 16, the shaking table 16 includes the perforated portion of the operating elongated hole 17 over the entire length of the lower surface X direction, and the second and third cam followers 14, 15 are provided. The guide groove 26 is formed in a recessed manner so as to correspond to the head portion of the guide groove, and a relief groove 27 is partially formed in the X direction. Switching plate 18 penetrating the operating shaft pin 28 corresponding to the formation position
Is received by the receiving plate 29 and is slidably mounted.

Further, in the switching plate 18, as shown in FIGS. 17 and 18, a guide slope 3 narrowed in a valley shape from one side (left side in the figure) of the X-direction end surface of the switching plate 18.
0 and 30 are provided, and the first cam follower 8 engages by sandwiching and engaging the first cam follower 8 at the end of the guide slopes 30 and 30, and then the engagement restricting portion of the first cam follower 8. A guide slope 31 extending from the portion 19 is provided, and an escape hole 32, which is an escape place for the first cam follower 8, is provided from the terminal end of the guide slope 31.
Moreover, the second and third cam followers 1 are arranged parallel to the engaging and releasing portions of the first cam follower 8 extending in the X direction.
The parallel engagement restricting rails 33, 33 for unrestricted disengagement of both 4 and 15 depending on the sliding position or for selectively engaging one of them are second and third from the engaging and disengaging portions of the first cam follower 8.
The cam followers 14 and 15 are arranged side by side. On the lower surface of the shaking table 16, a shaking switching lever 35 pivotally supported by a fulcrum shaft pin 34 is arranged with one end thereof protruding outside the shaking table 16 and is provided at the other end of the switching lever 35. By engaging the connecting elongated hole 36 with the actuating shaft pin 28, the rocking operation can be performed.

Next, each shaking state will be described with reference to FIGS. When the switching lever 35 is in the state shown in FIG. 1,
As shown in FIG. 6A, the engagement restricting portion 19 of the first cam follower 8 of the switching plate 18 is engaged with the first cam follower 8 and the engagement restricting rails 33, 33 have the second and third positions. Since both cam followers 14 and 15 are in the released state,
Shaking table 16 from the third cam follower 15 which is the fixed shaft
Is released and can also slide in the Y direction. As a result, the force the shaking table 16 receives is only eccentric rotation from the first cam follower 8, and the shaking table 16 follows the first cam follower 8 with the radius of rotation (1/2 r1) of the first cam follower 8. And perform the same shaking.

When the switching lever 35 is in the state shown in FIG.
As shown in (b), the head portion of the first cam follower 8 is freely movably released in the escape hole 32 of the switching plate 18, and is also restricted from being inserted into the operation elongated hole 17 of the shaking table 16. .
Also, the engagement restricting rail 33 of the switching plate 18 is a third shaft that is a fixed shaft.
The shaking table 16 cannot slide in the Y direction because it is engaged with the cam follower 15. The first cam follower 8
The movements other than the X direction are canceled by free movement in the Y direction in the escape hole 32 of the switching plate 18 and in the operation long hole 17 of the shaking table 16, and as a result, the shaking table 16 is Since it is also released from the cam follower 14 of 2, the shaking table 1
6, the force in the X direction only is applied, and the shaking table 16
Becomes a reciprocal shaking motion of the rotating diameter length (r1) of the first cam follower 8.

When the switching lever 35 is in the state shown in FIG. 3, the engagement restricting rails 33, 33 of the switching plate 18 engage and hold the second cam follower 14. The engagement restriction rails 33, 3
Since 3 is released in the X direction, as a result, the second cam follower 14 simply slides in the X direction with respect to the switching plate 18 (shaking table 16), and the force in the Y direction alone is shaken. Can act on. Further, when the engagement regulation rails 33, 33 are in this state, the guide slopes 30, 30 narrowing in a valley shape from one end surface (left side in the figure) of the switching plate 18 in the X direction do not come into contact with the first cam follower 8. Move to position. As a result, the first cam follower 8 is completely free from the switching plate 18. Further, the operation of the first cam follower 8 other than the X direction is offset by free movement in the Y direction in the operation elongated hole 17 of the shaking table 16, and as a result, the first cam follower 8 is shaken. A force only in the X direction can act on the table 16.

As described above, the second cam follower 14 operates the shaking table 16 only in the Y direction, and the first cam follower 8 operates the shaking table 16 only in the X direction, each cycle of which is the timing pulley 11, The number of teeth of 13 is set to 30 and 60 respectively, that is, 1: 2,
Since it rotates at a ratio of 2: 1, it makes one round trip in the Y direction and two round trips in the X direction. And from the rotary support shaft 9 to the first
To the cam follower 8 and the rotation support shaft 9'from the second
Since the distances to the cam followers 14 are the same, the loci of the motions of the first cam follower 8 and the second cam follower 14 added to the shaking table 16 intersect in the middle as shown in FIGS. Shaking table 1
Shake 6 to figure 8.

(Second Embodiment) A second embodiment of the present invention will be described with reference to the drawings. FIG. 19 shows the swirling and reciprocating motions of this embodiment, and the swiveling and reciprocating motions of a triple shaker that can be shaken in a figure 8.
FIG. 20 is a first plan view showing each of the figures of FIG.
9 is a longitudinal sectional view taken along the line XX-XX, and FIG. 21 is an engagement regulation rail forming a pinch regulation portion 19 'for selectively engaging and retaining one of the first, second, and third cam followers. 33 ',
33 is a plan view of the switching plate 18 'having 33', FIG. 22 is a right side view thereof, and FIG. 23 is a front view thereof. The same members as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted when the description is repeated.

The difference between this embodiment and the first embodiment is that the first cam follower 8 and the second cam follower 14 are eccentrically rotated, respectively, and the rotation support shafts 9 and 9'and the third cam follower 15 are arranged. The operation and effect that act on the shaking table 16 are the same depending on the position where the switch plate 18 ′ is located and the position of the switch lever 35. Only different points will be described. In the first embodiment, the first cam follower 8 is used at the time of swinging and shaking.
Is engaged and held by sandwiching the operation elongated hole 17 of the shaking table 16 and the engagement restricting portion 19 of the switching plate 18, but in the present embodiment, the first cam follower 8 has the operation elongated hole 17 of the shaking table 16. And a parallel engagement restricting rail 33 'of the switching plate 18',
33 'is engaged and held by the sandwiching restriction portion 19'. Further, in the first embodiment, the second cam follower 14 and the third cam follower 15 at the upper end of the fixed shaft are engaged and held by being sandwiched by the parallel engagement restricting rails 33, 33 of the switching plate 18. In the present embodiment, the rotation support shaft 9 and the fixed shaft are erected on a straight line where the respective centers of the first cam follower 8 and the second cam follower 14 pass through and intersect and are parallel to the reciprocal shaking direction. And the third
The same cam follower 15 as the engagement restricting rail 3 which engages with the first cam follower 8 of the switching plate 18 '.
The 3'and 33 'pinching restricting portions 19' hold and engage with each other.

In the first embodiment, the switching plate 18 'is provided with guide slopes 30, 30 narrowing in a valley shape from one end surface of the switching plate 18 in the X direction as shown in FIGS. , The guide slopes 30, 30 at the ends of which the first cam follower 8 is sandwiched and engaged, the engagement restricting portion 19 of the first cam follower 8, and the guide slope extending from the engagement restricting portion 19 of the first cam follower 8. 31 is provided,
An escape hole 32, which is an escape area for the first cam follower 8, is provided from the terminal end portion of the guide slope 31, and is parallel to the engaging and releasing portions of the first cam follower 8.
While the engagement restricting rails 33, 33 for engaging and releasing the third cam followers 14, 15 are provided, in the present embodiment, as shown in FIGS. 21, 22 and 23, the switching plate 1
Guide slope 3 that narrows in a valley shape from one end of 8'in the X direction
0 ', 30' are provided and their guide slopes 30 ', 3'
Engagement restricting portion 1 which encloses and engages with the 0'end.
9 ', and guide slopes 31', 31 'forming escape holes 32' for escaping the first and second cam followers 8, 14 from the end of the pinch restricting portion 19 'depending on the shaking state. Cage, and this guide slope 30 ', 3
0 ', pinching restricting portion 19', guide slopes 31 ', 31'
The guide slopes 33a ', 33a', the pinching restricting portions 33b ', 33b', and the guide slopes 33c ', 33c' are continuously traveled in parallel in parallel with each other so that the shake base 16 is moved to the lower surface of the shake base 16. Engagement restriction rails 33 ', 33' are attached in parallel symmetry so as to restrict the engagement of the second and third cam followers 14, 15 whose height does not reach the lower surface.

Further, in this embodiment, the pinching restricting portion 33b '
Is engaged with the third cam follower 15 at the upper end of the fixed shaft, the first cam follower 8 is engaged with the first cam follower 8, and the second cam follower 14 is engaged with the switching plate 18 ′ when engaged with the first cam follower 8. An escape hole 32 is provided so as not to interfere. Also, the above-mentioned pinching restriction portion 33 of the switching plate 18 '
A portion other than the engagement restricting rails 33 'and 33' forming the b'and the switching lever 35 are provided with the third shaft of the fixed shaft during reciprocal shaking.
20 and 2 so as not to interfere with the cam follower 15 of FIG.
2 and FIG. 23, it is thin enough to slide in the gap between the top of the third cam follower 15 on the fixed shaft and the shaking table 16. Further, the switching lever 35 is arranged on the left side of the shaking table 16 in the first embodiment, and is arranged on the right side in this embodiment, but it may be arranged on the left side. Therefore, the movement is assumed only when the first cam follower 8 and the second cam follower 14 shown in FIGS. 6 to 14 arrive on the straight lines passing through the centers of the third cam followers 15, respectively.
It can be seen that the behaviors of are the same.

[0030]

As described in detail above, according to the present invention,
A first cam follower that is eccentrically rotated by a drive source with a predetermined effective rotation radius, a second cam follower that rotates synchronously and eccentrically at a rotation ratio of 2: 1 with respect to the first cam follower, and a third fixed shaft. A cam follower, an apparatus substrate having a Y-direction guide means arranged orthogonal to the reciprocal shaking movement direction, and an X-direction guide means arranged in the reciprocating shaking direction are provided, so that the Y-axis is formed when the swing or figure 8 is shaken. The shaking table lower frame is mounted so as to be slidable in any direction, and the operating direction hole is formed in the Y direction corresponding to the effective radius of rotation, and the first cam follower is inserted therein. The shaking table mounted slidably in the X-direction, the engagement restricting portion capable of engaging the first cam follower in the working elongated hole in the first embodiment, and the second and third cam followers. Depending on the sliding position, release both unregulated or one It has an engagement restricting rail that selectively engages and a sandwiching restricting section that selects and holds only one of all the cam followers in the second embodiment, and slides in the X direction with respect to the shaking table. A switching plate, which is movably mounted on the lower surface of the shaking table, is connected to the switching plate. In the first embodiment, the first cam follower and the second and third cam followers are engaged with the engaging restricting portions. In the second embodiment, the combined regulation rail is provided with a switching operation means for sandwiching the regulation restricting portion in all the cam followers to selectively hold and release or release it. Can be freely slid in the two-dimensional directions of X and Y.

In addition, depending on the engagement and holding of the first cam follower by the engagement restricting portion, the sliding of the first cam follower in the Y direction in the operation elongated hole is prevented, and the swinging motion is given to the shaking table. Depending on the disengagement and release of the first cam follower by the engagement restricting portion of the switching plate, the first cam follower is allowed to slide in the Y direction in the operation elongated hole, and the Y of the shaking table lower frame is allowed.
Direction reciprocation, the reciprocal shaking motion in the X direction can be given to the shaking table, and when the first cam follower is released and released in the same operation long hole, the engagement restricting rail of the switching plate is fixed to the fixed shaft. When it is disengaged from the barrel third cam follower and is engaged and held by the second cam follower that is eccentrically driven, it is possible to give the shaking table an 8-shaped shaking motion to the shaking table. The shaking machine used to swirl, reciprocate or shake the figure 8 in a storage container such as agitator has a simpler structure than the conventional machine, and the number of parts Less, less expensive, and lighter in weight and weight. Furthermore, as a result of the simple structure as described above, the effective use area on the shaking table is wide, and it is not necessary to put another cover member on it as in the conventional example, and even when switching the shaking state, It is possible to operate the switching plate externally without moving the object to be shaken without moving it to another place.

[Brief description of drawings]

FIG. 1 is a plan view of a triple shaker according to a first embodiment of the present invention, which is capable of swinging, reciprocating, and shaking in a figure 8 in a swinging and shaking state.

FIG. 2 is a plan view of the same as above, in a reciprocal shaking state.

FIG. 3 is a plan view of the same as above, in a figure 8 shaking state.

FIG. 4 is a vertical sectional view taken along the line VI-VI in FIG.

FIG. 5 is a vertical cross-sectional view taken along line VV of FIG.

FIG. 6 is a motion correlation diagram of the first and third cam followers, the engagement restricting portion and the engagement restricting rail of the switching plate, and the operation elongated hole of the shaking table, in which (a) shows a swing shaking state and (b) ) Indicates reciprocal shaking state.

FIG. 7 (a) is a movement of the first cam follower and the second cam follower acting on the shaking table and its locus, and FIG. 7 (b) is a figure 8 which is a combination of the above two movements. The locus, where the noon direction is 0 radians and the first
Cam follower is 1/2 π and the second cam follower is 1/4 π
It has moved clockwise.

[FIG. 8] In the same as above, the first cam follower has a π and a second cam follower.
The cam follower of is moving by 1/2 π clockwise.

[FIG. 9] In the same as above, the first cam follower has 3/2 π,
The second cam follower has moved 3/4 π clockwise.

[FIG. 10] In the same as above, the first cam follower has 2 π,
The second cam follower has moved in the clockwise direction by π.

[FIG. 11] In the same as above, the first cam follower is 5/2.
π, the second cam follower has moved clockwise by 5/4 π.

[FIG. 12] In the same as above, the first cam follower has 3 π,
The second cam follower has moved 3/2 π clockwise.

[FIG. 13] In the same as above, the first cam follower is 7/2.
π, the second cam follower has moved 7/4 π clockwise.

FIG. 14 is the same as above, in which the first cam follower is 4 π,
The second cam follower has moved by 2π clockwise, and has completed one cycle of figure 8 shaking.

FIG. 15 is a plan view of the shaking table in the first embodiment.

FIG. 16 is a right side view of the above.

FIG. 17 is a plan view of a switching plate according to the first embodiment.

FIG. 18 is a right side view of the above.

FIG. 19 is a plan view showing simultaneously the swirling, reciprocating, and 8-shaking state in the second embodiment of the triple shaker capable of swiveling, reciprocating, and 8-shaped shaking according to the present invention.

FIG. 20 is a vertical sectional view taken along the line VII-VII in FIG.

FIG. 21 is a plan view of a switching plate in the second embodiment.

FIG. 22 is a right side view of the above.

FIG. 23 is a front view of the same.

[Explanation of symbols]

 1 ... Device substrate 2 ... Anti-vibration seat 3 ... Device base 4 ... Strut 5 ... Motor 6 ... Small V belt pulley 7 ... V belt 8 ... 1st cam follower 9, 9 '... Support shaft 10 ... Large V belt pulley 11 , 13 ... Timing pulley 12 ... Timing belt 14 ... Second cam follower 15 ... Third cam follower 16 ... Shaking table 17 ... Operating elongated hole 18, 18 '... Switching plate 19 ... Engagement restricting part 19' ... Entrapment restricting part 20, 20 ... Fixing piece 21, 21 ... Y direction guide rod 21 ', 21' ... X direction guide rod 22 ... Shaking table lower frame 23, 23 ... Frame plate 24, 24, 25, 25 ... Guide roller 26 ... Guide concave Groove 27 ... Escape groove 28 ... Operating shaft pin 29 ... Receiving plate 30, 30, 31, 31 ... Guide slope 32 ... Escape hole 33, 33, 33 ', 33' ... Engagement restriction rail 34 ... Support shaft pin 5 ... the switching lever 36 ... connecting elongated hole

Claims (2)

[Claims] 1. A first cam follower driven eccentrically by a drive source at a predetermined effective radius of rotation, a second cam follower rotating synchronously and eccentrically at a predetermined rotation ratio with respect to the first cam follower, and a fixed shaft upper end. A third cam follower mounted so as to rotate freely, a device substrate having Y-direction guide means arranged orthogonal to the reciprocal shaking movement direction, and an X-direction guide means arranged in the reciprocating shaking movement direction. Turn, 8
Shaking table lower frame mounted on the Y-direction guide means so as to be slidable in the Y-direction when the character is shaken, and bored in the Y-direction corresponding to the effective radius of rotation, and the first cam follower is inserted therein. Engagement restriction for engaging the first cam follower with the shaking table, which has an operation elongated hole and is slidably mounted in the X direction by the X direction guide means, in the operation elongated hole. Part and the second and third cam followers are both unrestrictedly released depending on the sliding position, or an engagement restricting rail that selectively engages with one side is slidable in the X direction with respect to the shaking table. A switching plate that is attached to the lower surface of the shaking table, and the first cam follower and the second cam that are connected to the switching plate.
The third cam follower is provided with a switching actuating means for engaging and retaining the engagement restricting portion and the engagement restricting rail, or for releasing and releasing the one-touch external operation. Triple shaker that can be shaken freely 2. A first cam follower which is eccentrically rotated by a drive source at a predetermined effective radius, a second cam follower which is synchronously eccentrically rotated at a predetermined rotation ratio with respect to the first cam follower, and is freely rotatable on the upper end of a fixed shaft. And a center of each of the first cam follower and the second cam follower crosses each other, and at least the third cam follower attached to
Device base having Y-direction guide means arranged parallel to a straight line passing through the center of the cam follower and orthogonal to the reciprocal shaking movement direction, and X-direction guiding means arranged in the reciprocating shaking movement direction. , A swing base underframe mounted on the Y-direction guide means so as to be slidable in the Y-direction at the time of turning, and shaking the figure 8, and the first cam follower provided in the Y-direction corresponding to the effective radius. A shaking table having an operating long hole to be inserted and slidably mounted in the X direction by the X direction guide means, and the first cam follower and the second and third cam followers depending on the sliding position. A switching plate which has an engagement regulation rail which forms a sandwiching regulation portion which selectively engages, and which is slidable in the X direction with respect to the shaking table, and which is provided below the lower surface of the shaking table; The first cam follower and the first cam follower are connected to the switching plate. Of the cam follower and the third cam follower provided with a switching actuating means for selectively holding the engagement regulating rail in an engageable and one-touch external operation. Triple shaker