JPH04330271A - Triple shaker freely shakable in gyration, reciprocation and figure of eight modes - Google Patents

Abstract

PURPOSE:To provide the subject apparatus composed of a specific construction and enabling one-touch switching of the mode of shaking motion from outside. CONSTITUTION:The base board 1 of the apparatus is provided with a lower frame 22 of a shaking table in a state freely slidable in the direction Y. A shaking table 16 is placed on the lower frame 22 in a state freely slidable in the direction X to enable the free sliding of the shaking table 16 in X and Y directions relative to the base board 1. The base board 1 is provided with cam followers 8, 14, 15 and the cam follower 8 is engaged in a working slit hole 17 with an engagement restriction part of a switching plate 18 to apply a gyration shaking motion to the shaking table 16. When the cam follower 8 is released and the cam follower 15 is engaged with an engagement restriction rail 33', the shaking table 16 is subjected to reciprocating shaking motion in the direction X. The reciprocating shaking motion of the shaking table 16 in the direction Y is achieved by releasing the cam follower 8 and shifting the switching lever 35 to engage the rail 33' with the cam follower 14. A figure-of- eight motion of the shaking table 16 can be performed by the composition of the motions in X and Y directions.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention relates to a triple shaker capable of rotating, reciprocating, and figure-eight shaking, and more specifically, the present invention relates to a triple shaker that is capable of rotating, reciprocating, and figure-eight shaking, and more specifically, it relates to a triple shaker that is used by switching the shaking table to any one of rotating, reciprocating, and figure-eight shaking motions. Involved in improving equipment.

0002

[Prior art] For example, for culture tests, beakers, etc.
In a storage container such as a flask, store the culture medium, along with the culture solution, etc.
In other words, in order to stir the test object by rotating, reciprocating or figure-of-eight shaking motion after storing the test object, as is well known in the past, it is necessary to A switching motion type shaking device is used.

[0003] Conventional shaking devices of this type that switch between rotating, reciprocating, and figure-eight motions generally have a shaking table that also moves in a direction perpendicular to the reciprocating shaking during both rotating and figure-eight shaking. An intermediate truck was built in between the shaking device board and the shaking table so that the shaker could slide, and its structure, when viewed from the side, was a three-tiered or three-layered structure consisting of the shaking device board, intermediate truck, and shaking table. .

Furthermore, because of the three-layer structure described above, the switching plate that is slid when switching the shaking state cannot be attached to the bottom of the shaking table.
Since it is placed on the top surface of the shaking table, when placing an object to be shaken, another cover member is used by placing it on the top surface of the shaking table. Therefore, each time the shaking motion is changed, the object to be shaken is removed from the cover member, or the object is left in the same state and the cover member is removed from the shaking table to perform the changeover. Furthermore, the prevention of deviation in the Y direction during reciprocating shaking was achieved by restricting the engagement between the bearing ring bearing installed in the shaking table and the narrow fixed portion of the switching plate.

[0005]

[Problems to be Solved by the Invention] However, as described above, conventional shaking devices that switch between rotating, reciprocating, and figure-eight motions generally have two types of shaking: reciprocating shaking and figure-eight shaking. An intermediate cart is built in between the shaking device board and the shaking table so that the shaking table can also slide in the right angle direction.
When viewed from the side, the structure is a three-layer structure consisting of a shaking device board, an intermediate trolley, and a shaking table. During operation, a cover member is further stacked on top of the shaking table, resulting in a four-tiered or four-layered mechanical structure. is complex and has many parts,
Moreover, as a result, there are many disadvantages in terms of weight and bulkiness in use.

Furthermore, because of the three-layer structure described above, the switching plate that is slid when changing the shaking state cannot be attached to the bottom surface of the shaking table.
Because it is located on the top surface of the shaking table, the effective usable area on the shaking table is small, and the object to be shaken cannot be placed directly on the shaking table, so it is necessary to install another cover member on top of it, or When changing the state, it was necessary to move the object to be shaken to another location each time, or to operate the switching plate after moving the object to be shaken to another location along with the cover member on the shaking table. .

[0007] The present invention has been made in order to solve these conventional problems, and instead of having a three-layer structure in which an intermediate carriage is provided between the shaking device board and the shaking table, the shaking device is It has a two-layer structure of a substrate and a shaking table, and because of the two-layer structure,
A switching plate that slides when switching between reciprocating, rotating, and figure-of-eight shaking can be installed on the underside of the shaking table, and as in the conventional example, the object to be shaken or a cover on which the object to be shaken is placed when changing the shaking state. To provide a triple shaker that can be freely rotated, reciprocated, and shaken in a figure of 8, allowing direct switching from the outside with a single touch without moving any member.

[0008]

[Means for Solving the Problems] The above problems are achieved by the present invention adopting the following novel characteristic configuration means. That is, the first feature of the present invention is that the first
a 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 that is rotatably attached to the upper end of a fixed shaft;
The apparatus board includes a Y-direction guide means disposed perpendicularly to the reciprocating shaking motion direction, and an X-direction guide means disposed in the reciprocating shaking motion direction, so that the Y-direction is A shaking table lower frame slidably mounted on the Y-direction guide means, and an operating elongated hole bored in the Y-direction corresponding to the effective rotation radius and into which the first cam follower is inserted. , a shaking table mounted so as to be slidable in the X direction by the X direction guide means, an engagement regulating portion capable of engaging the first cam follower within the operating elongated hole, and the second
, an engagement regulating rail that releases both of the third cam followers unrestrictedly or selectively engages one of them depending on the sliding position, so that the shaking table is slidable in the X direction with respect to the shaking table. a switching plate attached to a lower surface; and a switching plate connected to the switching plate to engage and hold the engagement regulating portion and the engagement regulating rail on the first cam follower and the second and third cam followers, respectively. This is a triple shaker that can be rotated, reciprocated, and shaken in a figure of 8, and is equipped with a one-touch external switching means for releasing and releasing the shaker.

A second feature of the present invention is that the first cam follower rotates eccentrically at a predetermined effective radius by a driving source, and the second cam follower rotates eccentrically in synchronization with the first cam follower at a predetermined rotation ratio. , a third cam follower attached to the upper end of the fixed shaft so as to freely rotate; and a reciprocating motion parallel to a straight line that passes through and intersects the respective centers of the first cam follower and the second cam follower and passes through at least the center of the third cam follower. Y arranged perpendicular to the direction of shaking motion
The apparatus has an apparatus base having a direction guide means and an X direction guide means disposed in the direction of reciprocating shaking motion, and is mounted on the Y direction guide means so as to be slidable in the Y direction during turning and figure 8 shaking. a shaking table lower frame, and an operation elongated hole that is bored in the Y direction corresponding to the effective radius and into which the first cam follower is inserted, and is slidable in the X direction by the X direction guide means. a shaking table mounted thereon; and an engagement regulating rail forming a pinch regulating portion that selectively engages the first cam follower and the second and third cam followers depending on the sliding position; A switching plate is attached to the lower surface of the shaking table so as to be slidable in the X direction with respect to the shaking table, and the first cam follower, the second cam follower, and the third cam follower are connected to the switching plate. This is a triple shaker that can freely rotate, reciprocate, and shake in a figure of 8, and is equipped with a one-touch externally operable switching means for selectively engaging and holding the engagement regulating rail with a cam follower.

0010

[Operation] Therefore, in the present invention, the lower frame of the shaking table can be freely slid in the Y direction via the Y direction guide means on the device board.
The shaking table is moved in the X direction through the X direction guide means of the lower frame of the shaking table.
Since the shaking table is mounted so as to be slidable in each direction, it is possible to freely slide the shaking table in the two-dimensional directions of X and Y with respect to the device board, and in this state, the shaking table is mounted on the device board. A first cam follower driven by eccentric rotation is fitted into an operation elongated hole drilled in the Y direction of the shaking table, and is slid inside the lower frame of the shaking table and on the lower surface of the shaking table in the X direction. Since the first cam follower can be engaged and held in the operating elongated hole or released and released by the engagement regulating part or the pinching regulating part of the switching plate which is movably attached below, the said engagement By engaging and holding the first cam follower by the regulating part or the pinching regulating part, the first cam follower is prevented from sliding in the Y direction within the operation elongated hole, and a rotating shaking motion is imparted to the shaking table. I can do it.

The detachment/release allows the first cam follower to slide in the Y direction within the operating elongated hole, and the third cam follower at the upper end of the fixed shaft provided on the shaking board and the switching plate. By engaging and holding the engagement regulating rail, it is possible to stop the shaking table lower frame from sliding in the Y direction and to give the shaking table a reciprocating shaking motion in the When the first cam follower is released, the engagement regulating rail is removed from the third cam follower at the upper end of the fixed shaft. When the cam follower is engaged and held, since the engagement regulating rails are two rails parallel to the X direction, the X of the second cam follower is
The motion in the X direction is neutralized by the second cam follower sliding in parallel to the X direction between the engagement regulating rails, and the shaking table can be given reciprocating shaking motion in the Y direction. , Y can give a figure-eight shaking motion to the shaking table.

0012

【Example】

(First Embodiment) A first embodiment of the present invention will be explained in detail with reference to the drawings. Fig. 1 is a plan view of the triple shaker according to this embodiment, which is capable of rotating, reciprocating, and figure-of-eight shaking, in a rotating shaking state, Fig. 2 is a plan view of the triple shaker in a reciprocating shaking state, and Fig. 3 is a plan view of the triple shaker in a figure-of-eight shaking state. 4 is a longitudinal sectional view taken along the line VI-VI in FIG. 1, FIG. 5 is a longitudinal sectional view taken along the line V-V in FIG. 1, and FIG. Figure (b) shows the motion relationship between the 1st and 3rd cam followers, the switching plate, and the operating slots of the shaking table in a reciprocating shaking state. FIG.

FIGS. 7 to 14 show the figure-of-eight shaking of this embodiment; (a) shows the movements and trajectories of the first cam follower and second cam follower acting on the shaking table, and (b) shows the above-mentioned movement. This is a step-by-step representation of a figure-of-eight locus that is a composite 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 the switching plate, and FIG. 18 is a right side view of the same.

In the figure, reference numeral 1 indicates a device board, and this device board 1 is mounted on a device base 3 on which a vibration isolator 2 or the like is appropriately arranged to absorb vibrations, via individual supports 4. A drive motor 5 is installed between the device board 1 and the device base 3, and a double-linked small V-belt is provided on the rotating shaft 5a of the motor 5 protruding from the device board 1. A double V-belt 7 that receives rotation from a pulley 6 is provided,
The V-belt 7 includes a two-piece large V-belt pulley 1 that eccentrically rotates a first cam follower 8 about a rotation support shaft 9.
It is received as 0.

A timing pulley 11 is provided below the large V-belt pulley 10 and is rotated about the same rotational support shaft 9. The timing pulley 11 rotates about the rotational support shaft 9' via a timing belt 12. It is connected to the rotating timing pulley 13. The number of teeth of each of the timing pulleys 11 and 13 is set, for example, to 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 rotates eccentrically about the rotation support shaft 9'.

In addition, on the device board 1, there is a line passing through the rotation support shaft 9', which is the eccentric rotation center of the second cam follower 14, and on a parallel line in the reciprocating shaking direction (X direction) of the shaking table, and on the large V belt pulley. A third cam follower 15, which is freely rotatably attached to the upper end of the fixed shaft, is provided at a position where the cam follower 10 does not interfere with the third cam follower 15. The top end of the first cam follower 8 is a shaking table 16
The second cam follower 14 and the third cam follower at the upper end of the fixed shaft protrude higher than the lower surface of the shaking table 16 because they are engaged and held by the operation elongated hole 17 and the engagement regulating part 19 of the switching plate 18. The top end of each of 15 is a switching plate 18
The height does not reach the lower surface of the shaking table 16 because it is engaged and held only by the sandwiching between the parallel engagement regulating rails 33, 33. The eccentrically rotating first cam follower 8 is fitted into an operating elongated hole 17 provided through the shaking table 16 so as to be freely movable in the Y direction.

On the other hand, for the device substrate 1, in this embodiment, among the various shaking actions, the direction perpendicular to the direction of movement of the reciprocating action (hereinafter, the direction perpendicular to the direction of movement of the reciprocating action) The direction parallel to the reciprocating shaking action is called the [Y direction], and the direction parallel to the reciprocating shaking action is called the [X direction]). Y-direction guide rods 21, 21 fixedly supported by fixing pieces 20, 20 are horizontally suspended.

In addition, 22 indicates a shaking table lower frame, and this shaking table lower frame 22 includes a pair of frame plates 23, 23 on both the front and back sides corresponding to the Y direction, and left and right side frames 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 21'
, 21' are located between both ends of each frame plate 23, 23, and are assembled into a frame shape so as to be horizontally suspended in a direction corresponding to the X direction, and each of these frame plates 23, 23
A pair of guide rollers 24, 24 are protruded from the outer surface of the roller and pivoted thereto in correspondence with the Y direction. The shaking table lower frame 22 is held between the Y direction guide rods 21, 21 from above and below using guide rollers 24, 24 of each pair of frame plates 23, 23. By mounting it on the Y-direction, it can freely slide in the Y-direction on each of the Y-direction guide rods 21, 21.

Further, on the plate surface of the shaking table 16, there is provided a first cam follower 8 as an output end for obtaining the three different types of shaking and agitating actions, namely, the above-mentioned rotation, reciprocating, and figure-of-eight motion. The effective length R1 (= r1 + Δ1) is slightly larger than the rotational diameter r1 by the amount (Δ1) as an allowable gap.
) is provided through the operating slot 17 with the long axis in the Y direction,
Further, on both left and right sides of the side surface of the shaking table 16 parallel to the X-axis, a pair of guide rollers 25, 25 are protruded and pivotally supported, and this shaking table 16 is installed in the operating elongated hole 17 as described above. The first cam follower 8 is inserted and received, and each of the X-direction guide rods 21', 21' is mounted so as to be sandwiched from above and below by each set of guide rollers 25, 25. It is designed to be able to freely slide in the X direction on the X direction guide rods 21', 21'.

Furthermore, as shown in FIGS. 15 and 16, the shaking table 16 includes a perforated portion of the operating elongated hole 17 over the entire length of its lower surface in the X direction, and has second and third cam followers 14, 15. A guide groove 26 is recessed and extended to correspond to the head of the guide groove 26, and a relief groove 27 is partially bored in the X direction. The switching plate 18 passes through the actuating shaft pin 28 in accordance with the forming position,
It is received by a receiving plate 29 and is slidably mounted.

Furthermore, in the switching plate 18, as shown in FIGS. 17 and 18, a guide slope 30 narrows in a trough shape from one side (the left side in the figure) of the terminal surface of the switching plate 18 in the X direction.
, 30 are provided, and an engagement regulating portion 19 of the first cam follower 8 which sandwiches and engages the first cam follower 8 at the end of the guide slopes 30, 30, and then an engagement regulating portion of the first cam follower 8. A guide slope 31 that widens from the guide slope 31 is provided, and an escape hole 32, which is a place for the first cam follower 8 to escape, is provided from the end of the guide slope 31. In addition, second and third cam followers 1 are arranged parallel to the engagement and release portions of the first cam follower 8 extending in the X direction.
Parallel engagement regulating rails 33, 33, which release both cam followers 4, 15 without regulation or selectively engage one of them depending on the sliding position, are connected to the second and third cam followers from the engagement and release portions of the first cam follower 8.
The cam followers 14 and 15 are arranged side by side on opposite sides. A shaking switching lever 35 pivotally supported by a fulcrum shaft pin 34 is disposed on the lower surface of the shaking table 16 with one end protruding outside the shaking table 16, and a shaking switching lever 35 is provided at the other end of the switching lever 35. By engaging the long connecting hole 36 with the operating shaft pin 28, swinging operation is possible.

Next, each shaking state will be explained based on FIGS. 1 to 3. When the switching lever 35 is in the state shown in FIG.
As shown in FIG. 6(a), the engagement regulating portion 19 of the first cam follower 8 of the switching plate 18 is engaged with the first cam follower 8, and the engagement regulating rails 33, 33 are connected to the second and third cam followers. Since it is released from both cam followers 14 and 15,
The shaking table 16 is connected to the third cam follower 15 which is the fixed shaft.
is released and can also slide freely in the Y direction. As a result, the force that the shaking table 16 receives is only the eccentric rotation from the first cam follower 8, and the shaking table 16 follows the first cam follower 8 at the rotation radius (1/2 r1) of the first cam follower 8. Rotate and shake in the same manner.

When the switching lever 35 is in the state shown in FIG.
As shown in (b), the head of the first cam follower 8 is freely released into the relief hole 32 of the switching plate 18, and is also restricted to be inserted into the operating elongated hole 17 of the shaking table 16. . In addition, the engagement regulating rail 33 of the switching plate 18 has a third fixed axis.
Since the shaking table 16 is engaged with the cam follower 15 of the cam follower 15, the shaking table 16 cannot slide in the Y direction. Additionally, the first cam follower 8
The movement in directions other than the Since it is also released from the cam follower 14 of 2, the shaking table 1
6 is subjected to force only in the X direction, and the shaking table 16
is a reciprocating shaking motion of the rotational diameter length (r1) of the first cam follower 8.

When the switching lever 35 is in the state shown in FIG. 3, the engagement regulating rails 33, 33 of the switching plate 18 engage and hold the second cam follower 14. The engagement regulating rails 33, 3
3 is released in the X direction, so as a result, the second cam follower 14 only slides in the X direction with respect to the switching plate 18 (shaking table 16), and transfers the force only in the Y direction to the shaking table 16. It can act on In addition, when the engagement regulating rails 33, 33 are in this state, the guide slopes 30, 30, which are narrowed in a trough shape from one side (the left side in the figure) of the end surface 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
The cam follower 8 is completely free from the switching plate 18. In addition, the operation of the first cam follower 8 in directions other than the X direction is as follows:
This is offset by free movement in the Y direction within the operating elongated hole 17 of the shaking table 16, and as a result, the first cam follower 8
can apply force only in the X direction to the shaking table 16.

As described above, the second cam follower 14 allows the shaking table 16 to move only in the Y direction, and the first cam follower 8 allows the shaking table 16 to move only in the X direction, and each cycle is controlled by the timing pulley 11, For example, the number of teeth of 13 is set to 30 and 60, that is, 1:2, and 2
:1, so for each two reciprocations in the X direction, there is one reciprocation in the Y direction. In addition, since the distance from the rotation support shaft 9 to the first cam follower 8 and the distance from the rotation support shaft 9' to the second cam follower 14 are the same, the first cam follower 8 and the second cam follower 14 are The trajectory of the motion applied to the shaking table 16 intersects in the middle as shown in FIGS.
Shake in figure 8 motion.

(Second Embodiment) A second embodiment of the present invention will be explained with reference to the drawings. Figure 19 shows the rotation, reciprocation, and figure-8 shaking of the triple shaker of this embodiment.
A plan view simultaneously showing each of the figure 8 shaking states, Figure 20 is the first
FIG. 9 is a vertical sectional view taken along line XX-XX, and FIG. 21 shows an engagement regulating rail forming a pinch regulating portion 19' that selectively engages and holds one of the first, second, and third cam followers. 33',
33' is a plan view of the switching plate 18', FIG. 22 is a right side view thereof, and FIG. 23 is a front view thereof. Incidentally, the same members as in the first embodiment are given the same reference numerals, and redundant explanations are omitted.

The difference between this embodiment and the first embodiment is that the rotation support shafts 9, 9' for eccentrically rotating the first cam follower 8 and the second cam follower 14, and the third cam follower 15 are arranged. The operation and effect acting on the shaking table 16 are the same depending on the position, the shape of the switching plate 18', and the position of the switching lever 35. To describe only the differences, in the first embodiment, during rotational shaking, the first cam follower 8 is connected to the operation elongated hole 17 of the shaking table 16 and the engagement regulating portion 1 of the switching plate 18.
In this embodiment, the first cam follower 8 is held in engagement with the operating elongated hole 17 of the shaking table 16 and the parallel engagement regulating rails 33', 3 of the switching plate 18'.
It is engaged and held by the pinching of the pinching regulating portion 19' of 3'. In addition, 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 between the parallel engagement regulating rails 33, 33 of the switching plate 18. In this embodiment, the rotary support shaft 9 and the fixed shaft are set upright on a straight line that intersects the centers of the first cam follower 8 and the second cam follower 14 and is parallel to the reciprocating shaking direction. and the third cam follower 15 are the same engagement regulating rail 33' that engages the first cam follower 8 of the switching plate 18',
It is engaged and held by the pinching by the pinching regulating portion 19' of 33'.

In the first embodiment, as shown in FIGS. 17 and 18, the switching plate 18' is provided with guide slopes 30, 30 that narrow in a trough shape from one side of the end surface of the switching plate 18 in the X direction. , an engagement regulating portion 19 of the first cam follower 8 that sandwiches and engages the first cam follower 8 at the ends of the guide slopes 30, 30, and then a guide slope that widens from the engagement regulating portion 19 of the first cam follower 8. 31 is provided,
An escape hole 32 is provided from the end of the guide slope 31 as an escape hole for the first cam follower 8, and a second,
While engagement regulating rails 33, 33 for engaging and disengaging the third cam followers 14, 15 are provided, in this 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 in the X direction of 8'
0', 30' are provided, and the guide slopes 30', 30' are provided.
'Pinch regulating part 19' that pinches and engages the above at the terminal end;
Further, guide slopes 31', 31' are formed from the end of the pinching regulating portion 19' to form escape holes 32' for allowing the first and second cam followers 8, 14 to escape depending on the shaking state. Along the guide slopes 30', 30', the pinch regulating part 19', the guide slopes 31', 31', the guide slopes 33a', 33a', the pinch regulating part 33b',
33b', guide slopes 33c', 33c' are extended in a similar parallel manner to the lower surface of the shaking table 16, and the shaking table 1
6 Second and third cam followers 14 whose height does not reach the bottom surface
, 15, the engagement regulating rails 33', 3
3' are attached parallel and symmetrically.

Further, in this embodiment, the pinching regulating portion 33b'
When it is engaged with the third cam follower 15 at the upper end of the fixed shaft, the first cam follower 8 is engaged, and when it is engaged with the first cam follower 8, the second cam follower 14 is engaged with the switching plate 18'. An escape hole 32 is provided to prevent interference. In addition, the above-mentioned pinch regulating portion 33b of the switching plate 18'
20, 22 so that the parts other than the engagement regulating rails 33' and the switching lever 35 that form the part ' and the switching lever 35 do not interfere with the third cam follower 15 of the fixed shaft during reciprocating shaking.
and the third cam follower 1 on the fixed shaft as shown in FIG.
It is thin enough to slide through the gap between the top of the shaker 5 and the shaking table 16. Further, in the first embodiment, the switching lever 35 is arranged on the left side of the shaking table 16, and in this embodiment, it is arranged on the right side, but it can also be arranged on the left side. Therefore, the movement is shown in Figure 6.
- It is understood that the behavior of the 16th shaking is the same by simply assuming that the first cam follower 8 and the second cam follower 14 shown in FIG. 14 arrive on a straight line passing through the center of the third cam follower 15. It can be done.

[0030]

[Effects of the Invention] As detailed above, according to the present invention,
A first cam follower that is eccentrically driven to rotate at a predetermined effective rotation radius by a drive source;
: a second cam follower that rotates synchronously and eccentrically at a rotation ratio of 1; a third cam follower that is a fixed shaft; a device board having a Y-direction guide means disposed perpendicular to the reciprocating shaking direction; and a reciprocating shaking direction. The lower frame of the shaking table is mounted so as to be slidable in the Y direction during turning and figure-of-eight shaking; , a shaking table having an operating elongated hole into which the first cam follower is inserted, and mounted so as to be slidable in the X direction by an X direction guide means; an engagement regulation rail that releases both of the engagement regulation portion and the second and third cam followers in an uncontrolled manner or selectively engages one of them depending on the sliding position;
In the second embodiment, only one cam follower is selected from all the cam followers, and it has a pinch restricting part that engages and holds the cam follower, and is attached directly to the bottom surface of the shaking table so as to be slidable in the X direction with respect to the shaking table. A switching plate is connected to the switching plate, and in the first embodiment, an engagement regulating portion and an engagement regulating rail are respectively provided on the first cam follower and the second and third cam followers, and in the second embodiment, all of the engagement regulating portions are provided. The cam follower is equipped with a switching means that selectively engages, holds, or separates and releases the clamping restriction part, so that the shaking table can freely slide in the two-dimensional directions of X and Y with respect to the device board. I can do it.

In addition, the engagement and retention of the first cam follower by the engagement regulating portion prevents the first cam follower from sliding in the Y direction within the operating elongated hole, thereby imparting a rotating shaking motion to the shaking table. In addition, by disengaging and releasing the first cam follower by the engagement regulating portion of the switching plate, the first cam follower is allowed to slide in the Y direction within the operating elongated hole, and the Y direction of the lower frame of the shaking table is allowed to slide.
The directional sliding can be stopped, and the shaking table can be given a reciprocating shaking motion in the When the third cam follower is removed from the barrel and the second cam follower is engaged and held by the second cam follower driven by eccentric rotation, a figure-of-eight shaking motion can be applied to the shaking table. The shaker used to agitate the test object stored in a storage container, such as the It is also less expensive, less expensive, and lighter in weight. Furthermore, as a result of the above-mentioned simple structure, the effective usable area on the shaking table is wide, there is no need to place another cover member on top of the shaking table as in the conventional example, and even when changing the shaking state, The switching plate can be operated externally without moving the object to be shaken to another location.

[Brief explanation of drawings]

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

FIG. 2 is a plan view of the same device in a state of reciprocating shaking.

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

FIG. 4 is a longitudinal sectional view taken along the line VI-VI in FIG. 1;

FIG. 5 is a longitudinal sectional view taken along the line V-V in FIG. 1;

FIG. 6 is a motion correlation diagram between the first and third cam followers, the engagement regulating portion and the engagement regulating rail of the switching plate, and the operating slot of the shaking table, in which (a) is in a rotating shaking state and (b) ) indicates the reciprocating shaking state, respectively.

[Fig. 7] During figure-of-eight shaking, (a) shows the movements and trajectories of the first and second cam followers acting on the shaking table, and (b) shows the figure-of-eight that is the result of the combination of the two movements. The trajectory, with the direction of noon as 0 radian, the first
cam follower is 1/2 π, second cam follower is 1
/4 π This is a state of movement clockwise.

[Fig. 8] In the same as above, the first cam follower is π, the second cam follower is
The cam follower is moved clockwise by 1/2 π.

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

[Fig. 10] In the same as above, the first cam follower is 2π
, the second cam follower has moved clockwise 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 is 3π
, the second cam follower has moved clockwise by 3/2π.

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

[Fig. 14] In the same as above, the first cam follower is 4π
, the second cam follower has moved 2π clockwise, and one cycle of figure-eight shaking has been completed.

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

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

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

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

FIG. 19 is a plan view showing simultaneously the rotating, reciprocating, and 8-shape shaking states of the second embodiment of the triple shaker capable of rotating, reciprocating, and figure-of-eight shaking according to the present invention;

20 is a vertical sectional view taken along the line VII-VII of FIG. 19; FIG.

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

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

FIG. 23 is a front view of the same as above.

[Explanation of symbols]

1...Device board 2...Vibration isolation seat 3...Device base 4...Strut 5...Motor 6...Small V-belt pulley 7...V-belt 8...First 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 regulating part 19'...Pinching regulating part 20, 20... Fixed pieces 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 recess Groove 27... Relief groove 28... Operating shaft pin 29... Reception plate 30, 30, 31, 31... Guide slope 32... Relief hole 33, 33, 33', 33'... Engagement regulation rail 34... Fulcrum shaft pin 35... Switching Lever 36...Connection long hole

Claims (2)

[Claims] Claims: 1. A first cam follower eccentrically driven by a drive source at a predetermined effective rotation radius; a second cam follower eccentrically rotated synchronously with respect to the first cam follower at a predetermined rotation ratio; and a fixed shaft upper end. a third cam follower attached to the apparatus so as to be freely rotatable; a device board having a Y-direction guide means disposed perpendicular to the direction of the reciprocating shaking motion; and an X-direction guide means disposed in the direction of the reciprocating shaking motion. Turn, 8
A shaking table lower frame is mounted on the Y-direction guide means so as to be slidable in the Y-direction when shaking, and a hole is formed in the Y-direction corresponding to the effective rotation radius, into which the first cam follower is inserted. A shaking table having an operating elongated hole and mounted so as to be slidable in the X direction by the X-direction guide means, and an engagement restriction such that the first cam follower can be engaged within the operating elongated hole. and an engagement regulating rail that releases both of the second and third cam followers without regulation or selectively engages one of them depending on the sliding position, and is slidable in the X direction with respect to the shaking table. a switching plate attached to the lower surface of the shaking table; and a switching plate connected to the switching plate to connect the first cam follower and the second cam follower.
8. A turning, reciprocating, and reciprocating device characterized in that each of the third cam followers is provided with a switching actuation means that can be externally operated with a single touch to engage and hold the engagement regulating portion and the engagement regulating rail, or to release and release the engagement regulating portion and the engagement regulating rail. Triple shaker that can be shaken freely 2. A first cam follower that rotates eccentrically at a predetermined effective radius by a drive source; a second cam follower that rotates eccentrically in synchronization with the first cam follower at a predetermined rotation ratio; A third cam follower attached to
an apparatus base having a Y-direction guide means disposed perpendicular to the direction of reciprocating shaking motion parallel to a straight line passing through the center of the cam follower; and an X-direction guide means disposed in the direction of the reciprocating shaking motion. , a shaking table lower frame mounted on the Y-direction guide means so as to be slidable in the Y-direction during turning and figure-of-eight shaking;
said X.
A shaking table is mounted to be slidable in the X direction by a direction guide means, and a pinch regulating portion is formed to selectively engage the first cam follower and the second and third cam followers depending on the sliding position. a switching plate having an engagement regulating rail and attached to the lower surface of the shaking table so as to be slidable in the X direction with respect to the shaking table; and a switching plate connected to the switching plate and connected to the first cam follower. Turning, reciprocating, characterized in that the second cam follower and the third cam follower are provided with a switching actuation means that can be externally operated with a single touch to selectively engage and hold the engagement regulating rail. Triple shaker that can be shaken freely