JP2000061335A - Grinding/dispersing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a grinding/dispersing apparatus which is simple in constitution and inexpensive and can grind and disperse various specimens efficiently. SOLUTION: In a homogenizer 1, a polymer bag in which a specimen is sealed together with a dispersing medium can be held between a plate 21 and rollers 23, 25. When a motor 27 is driven in this state, powder is transmitted through a link 29, and the rollers 23, 25 reciprocates in the vertical direction of figure 1. The rollers 23, 25 are arranged at a prescribed interval through spacers 47, 48, and grooves are formed in the circumferential direction on the whole. Besides, V-shaped grooves 21a are formed in the plate 21. The rollers 23, 25, when reciprocated, move on the polymer bag while rotating. The specimen in the bag moving along each groove receives shear stress at a part where the plate 21 comes in contact with the rollers 23, 25 to be ground down.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a crushing / dispersing device for mechanically crushing and dispersing various samples such as food and soil.

[0002]

2. Description of the Related Art Conventionally, various devices such as a mortar have been used as a device for mechanically crushing and dispersing samples such as food and soil. Further, in the field of biochemistry, so-called homogenization, in which biological cells are mechanically crushed and dispersed into a milky state, may be applied to a sample for microbiological examination or physicochemical examination. For this reason, a so-called cup-type homogenizer for accommodating the sample and the dispersion medium in the cup and rotating the screw inserted in the cup to crush and disperse the sample, and a bag in which the sample and the dispersion medium are sealed are provided in the container. Then, a pair of paddles each having an uneven surface are alternately reciprocated toward the bag (for example, JP-A-7-28467).
It is considered that the sample is more efficiently crushed and dispersed by using (the one described in No. 9) or the like.

[0003]

However, in the cup-type homogenizer, it is necessary to wash or sterilize the cup before storing the sample in the cup. Therefore, when crushing and dispersing a large number of samples, it was necessary to prepare a large number of cups, which was very troublesome.

On the other hand, the homogenizer using the above pair of paddles can efficiently perform the work even when a large number of samples are crushed and dispersed because it uses a disposable bag, but it cannot be carried because the device is large. Further, since the pressure applied vertically from the unevenness of the paddle is used, sufficient efficiency may not be obtained when crushing and dispersing an elastic sample or the like. Further, in order to observe the crushed and dispersed state of the sample during the operation of the apparatus, it is necessary to manufacture a container using tempered glass or the like that can withstand the pressure from the paddle, which makes the apparatus expensive.

Therefore, the present invention has been made for the purpose of providing a crushing / dispersing apparatus which has a simple structure and is inexpensive, and which can efficiently crush and disperse various samples.

[0006]

Means for Solving the Problems and Effects of the Invention In order to achieve the above object, the invention according to claim 1 has a plurality of grooves formed on the surface thereof, and a base portion on which a bag containing a sample is placed. And a roller provided so as to be movable while rotating the surface of the base portion, and having a plurality of grooves formed on the surface to press the bag,
Drive means for moving the roller while rotating the roller along the surface of the base on which the bag is placed, and a plurality of grooves formed in the base and a plurality of grooves formed in the roller. The gist is a crushing and dispersing device characterized in that the groove and the groove are provided so as to intersect and contact each other.

In the present invention thus constructed, the bag containing the sample is placed on the base. If the roller is driven by the driving means in this state, the roller can be moved while rotating along the surface of the base on which the bag is placed. Here, a plurality of grooves are formed on the surfaces of the base and the roller, respectively. Therefore, if the roller is moved while rotating as described above, the plurality of grooves of both are relatively moved while pressing the bag by the roller,
The bagged sample can be ground. Moreover, in the present invention, since the plurality of grooves formed in the table portion and the plurality of grooves formed in the roller are provided so as to intersect and contact with each other, a sample moving along each groove can be attached to the table portion. Shear stress acts on the portion where the roller contacts with the roller. For example, at a portion where the groove of the base portion and the groove of the roller are in contact with each other, a force such as scissors is applied to the sample. Therefore, in the present invention, various samples can be efficiently crushed and dispersed. For example, elastic samples such as octopus and squid can be easily crushed and dispersed.

Further, such a structure for moving the roller can be easily implemented by, for example, a combination of a motor and a simple link mechanism, and the structure of the entire apparatus can be simplified. Therefore, it is easy to downsize the device. Furthermore, the crushed and dispersed state of the sample during operation of the device is
It can be easily observed by looking at the bag from the roller side. Therefore, it is not necessary to use tempered glass or the like to enable observation.

Therefore, the crushing and dispersing apparatus of the present invention has a simple structure and is inexpensive, and various samples can be efficiently crushed and dispersed. According to a second aspect of the present invention, in addition to the configuration of the first aspect, the plurality of grooves of the base portion are formed obliquely with respect to the moving direction of the roller, and the plurality of grooves of the roller are the rollers. It is characterized in that it is formed parallel to the moving direction of.

In the present invention, the simplest structure is adopted in which the grooves of the base are formed in the above-mentioned oblique direction, and the grooves of the rollers are formed in parallel with the moving direction thereof so that both grooves intersect and contact each other. ing. Further, since the groove of the roller is formed in parallel with the moving direction of the roller, it does not require a large driving force to move the roller while rotating as described above. Therefore, the driving means can be further simplified, reduced in cost, and downsized.

Therefore, in addition to the effects of the first aspect of the invention, the present invention has the effects of further simplifying the structure of the apparatus and further reducing the size and cost.
According to a third aspect of the present invention, in addition to the configuration of the second aspect, the plurality of grooves of the base portion are formed in a V-shape that is symmetrical with respect to a center line of a movement locus of the roller. There is.

In the present invention, the plurality of grooves of the base portion are formed in a V-shape which is symmetrical with respect to the center line of the locus of movement of the roller. For this reason, when the roller reciprocates on the groove, a force for expanding the sample in the axial direction of the roller and a force for compressing it in the center direction act alternately on the sample. Therefore, the sample can be crushed and dispersed more favorably.

Therefore, according to the present invention, in addition to the effect of the second aspect of the invention, the effect that the sample can be crushed and dispersed more favorably occurs. According to a fourth aspect of the present invention, a plurality of grooves are formed on the surface, a base on which a bag containing a sample is placed, and a surface of the base that is movably provided while rotating, are provided on the surface of a spiral A plurality of grooves in the base, the roller having a groove formed therein to press the bag, and a drive unit configured to move the roller while rotating the roller along the surface of the base on which the bag is placed. However, the gist is a crushing and dispersing device characterized in that it is formed in parallel or at right angles to the moving direction of the roller.

In the present invention, instead of forming the plurality of grooves of the base portion in parallel or at right angles to the moving direction of the roller, spiral grooves are formed on the surface of the roller. Therefore, as in the first aspect of the present invention, the groove formed on the base portion and the groove formed on the roller intersect each other obliquely and come into contact with each other. Therefore, similar to the invention described in claim 1, various samples can be efficiently crushed and dispersed by the shearing force.
Further, in the present invention, since the spiral groove is formed on the surface of the roller, the number of the groove may be one.

Therefore, the crushing / dispersing apparatus of the present invention has a simple structure and is inexpensive, and various samples can be efficiently crushed and dispersed. According to a fifth aspect of the present invention, in addition to the configuration of the fourth aspect, the spiral groove of the roller is formed in a left-right reverse spiral shape from the center line of the roller.

According to the present invention, the spiral groove of the roller is formed in a spiral shape of left-right reverse winding from the center line of the roller. Therefore, as in the third aspect of the invention, when the roller reciprocates on the base portion, a force for pushing the sample in the axial direction of the roller and a force for compressing it in the central direction act alternately on the sample. Therefore, the sample can be crushed and dispersed more favorably.

Therefore, in the present invention, in addition to the effect of the invention described in claim 4, there is an effect that the sample can be crushed and dispersed more favorably. According to a sixth aspect of the present invention, in addition to the configuration according to any of the first to fifth aspects, a plurality of the rollers are provided in the moving direction.

In the present invention, since a plurality of rollers are provided in the moving direction, the sample contained in the bag can be repeatedly crushed by the front and rear rollers. Therefore, in addition to the effect of the invention described in any one of claims 1 to 5, there is an effect that the sample can be crushed and dispersed more favorably.

Particularly, when a plurality of grooves of the roller are formed in parallel to the moving direction of the roller as described in claim 2 or 3, the positions of the grooves formed on the front and rear rollers are different from each other. If this is done, a more remarkable effect will occur. In this case, each part of the sample contained in the bag is more uniformly squeezed by the pressing force from the roller. Therefore, there is an effect that the sample can be crushed and dispersed more favorably.

When a spiral groove is formed on the surface of the roller as described in claim 4 or 5, it is more remarkable if the spiral direction of the groove formed on the front and rear rollers is left-right reverse winding. The effect occurs. In this case, the force in the opposite direction is successively applied to the sample continuously flowing into the grooves of the front and rear rollers. Therefore, there is an effect that the sample can be crushed and dispersed more favorably.

According to a seventh aspect of the present invention, in addition to the structure according to any one of the first to sixth aspects, the surface of the pedestal portion is disposed so as to be inclined, and the roller moves along the inclination. Is characterized by. In the present invention, the surface of the pedestal portion is arranged so as to be inclined, and the roller moves along the inclination. Therefore, when the roller is moved by the driving means, the sample and the dispersion medium (particularly the dispersion medium) also move in the vertical direction. Therefore, a stronger crushing force is applied to the sample, and the sample can be crushed and dispersed more favorably.

Therefore, in the present invention, in addition to the effect of the invention described in any one of claims 1 to 6, the effect that the sample can be crushed and dispersed more favorably is produced.

[0023]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings. FIG. 2 is a side view showing the configuration of the homogenizer 1 as one embodiment of the crushing and dispersing apparatus of the present invention, and FIG. 3 is its front view. The homogenizer 1 is used by enclosing a sample of food, soil or the like in a polybag together with a dispersion medium such as water, and crushing the sample enclosed in the polybag to disperse the sample in the dispersion medium. It is a device.

As shown in FIG. 2, the homogenizer 1 according to the present embodiment has a base unit 5 fixed on a base 3 and a roller unit swingably connected to the base 3 via a bracket 7. 9 and 9. The base 5 and the roller unit 9 are connected by a fastening link 11, and the roller unit 9 is configured to swing in accordance with the operation of the handle 13 as follows.

As shown in FIGS. 2 and 3, the roller unit 9 swings around the swing pin 7a fixed to the bracket 7, and the handle 13 of the fastening link 11 moves the base 5 to the swing pin 7a. It is fixed to one end (the right end in FIG. 3) of the shaft 15 penetrating in parallel therewith. One end of a linear crank 17 arranged along the left and right side surfaces of the base 5 is fixed near both ends of the shaft 15, and the other end of each crank 17 is swingable to the roller unit 9. The other end of the crank 19 connected to is swingably connected.
The crank 19 is formed in a substantially S-shape so as not to interfere with the shaft 15 even when the crank 19 is most lowered.

Therefore, when the handle 13 is operated counterclockwise in FIG. 2 and rocked to the position shown by the chain double-dashed line in FIG. 2, the roller unit 9 rises to the position shown by the chain double-dashed line in FIG. . Then, the base 5 and the roller unit 9
The poly bag (not shown) in which the sample is enclosed can be inserted between and. Subsequently, the handle 13 is operated in the clockwise direction in FIG. 2 to swing it to the position shown by the solid line in FIG. 2, whereby the plate 21 provided on the surface of the base 5 and the roller are moved as described below. The plastic bag can be sandwiched between the rollers 23 and 25 provided in the unit 9 (see FIG. 4).

FIG. 4 is a sectional view taken along the line AA of FIG. Here, the homogenizer 1 includes a motor 27 as a drive unit for moving the rollers 23 and 25 and a link 29, but the line AA is immediately before the link 29 (see FIG. 3).
Right after that) is the line set. The line AA is also described in FIG. 1 described later, so refer to it.

As shown in FIG. 4, the roller unit 9 includes
The outer shape of the rail holder 31 and the roller cover 33 is formed, and the rollers 23 and 25 are mounted on the rail holder 31 via the roller holder 35 and the slide rail 37 shown in FIG. As shown in FIG. 5, the rail holder 31 is configured by arranging a pair of rods having an L-shaped cross section so as to face each other, and the roller cover 33 includes a rectangular parallelepiped acrylic case having an opening at the bottom. It is constructed by spanning between. The slide rail 37 is an outer rail 37 arranged along the inner side surface of the rail holder 31.
a, an inner rail 37b arranged on the outer side surface of the roller holder 35, and a bearing 37c inserted between the two.
Well-known ones composed of and (for example, trade name TM
-219-12: manufactured by Tochigiya). Therefore, the rollers 23 and 25 smoothly move in the longitudinal direction of the roller unit 9. 5 is a cut end view of the roller unit 9 taken along the line BB of FIG.

FIG. 1 is a top view of the homogenizer 1 in which the roller cover 33 is removed and a part of the rail holder 31 is cut away. Two shafts 41 and 43 are installed between a pair of roller holders 35 provided on the left and right rail holders 31 via slide rails 37, and seven rollers 23 are mounted on the front shaft 41. ,
Ten rollers 25 are rotatably provided on the rear shaft 43, respectively. Also, the rear shaft 4
3, one end of a link 29 is swingably connected, and the other end of the link 29 is a lever 45 fixed to a rotation shaft of a motor 27 (correctly, an output shaft of a gear head 27b described later).
It is swingably connected to the tip of.

Six spacers 47 are provided between the rollers 23 to keep them at equal intervals, and spacers 47 are provided between the rollers 25 except the portion to which the link 29 is connected.
Nine thinner spacers 48 are provided between the outermost one of the rollers 23 and 25 and the roller holder 35 to hold the rollers 23 and 25 in place. ing.

The motor 27 has a motor main body 27a composed of a single-phase induction motor and a gear head 27b for decelerating the rotation of the motor main body 27b, which is integrated. The motor head 27a is provided behind the base 5 (on the right side in FIG. 1). It is installed on the base 3 via a motor base 27c. Therefore, in the roller unit 9, by driving the motor 27,
The rollers 23 and 25 reciprocate in the roller unit 9 in the longitudinal direction.

Further, the motor 27 is covered with a motor cover 50, and on the rear surface of the motor cover 50, a power switch 51 (FIG. 2) for switching ON / OFF of the main power source of the motor 27 and a motor 52 by rotation of the knob 52a. A rotary timer 52 that regulates the drive time of 27 is provided.

As shown in FIG. 4, the upper surface of the pedestal portion 5 is inclined rearward by about 20 °, and a plate 21 with a groove 21a made of urethane rubber is disposed on the surface thereof. . This plate 21 is, as shown in FIG.
A thick-walled portion 21b having a large number of V-shaped grooves 21a symmetrical with respect to the center line of the movement loci of the rollers 23 and 25, and a thin-walled portion 21c formed on the left and right of the thick-walled portion 21b are provided. The thin-walled portions 21c are pressed from the four corners (only the two rear-side portions are shown in FIG. 1) by the plate pressing members 53 fixed to the upper surface of the base 5. The rear end of the plate 21 is locked by a stopper 55 fixed to the upper surface of the base 5, and the front end of the plate 21 is locked by a clamp base 57 (FIG. 4) made of NBR rubber fixed to the upper surface of the base 5. Has been done. Therefore, even if the plastic bag containing the sample is placed on the plate 21 and the rollers 23 and 25 are reciprocally moved while being pressed by the rollers 23 and 25, it is possible to prevent the plate 21 from moving satisfactorily. it can.

Further, as shown in FIG. 4, a clamp metal fitting 63 is arranged at a position facing the clamp base 57 of the roller unit 9 via a clamp holder 61.
Therefore, the above-mentioned plastic bag is attached to the plate 21 and the rollers 23, 2
When sandwiched with 5, one end of the plastic bag is clamp metal 6
3 and the clamp base 57 are firmly sandwiched, and the plastic bag can be effectively prevented from moving.

Further, as shown in FIG. 4, the pedestal portion 5 is hollow, and a linear lever 65 is fixed to the above-mentioned shaft 15 penetrating the inside thereof. The lever 65 is fixed in parallel with the crank 17 of the fastening link 11, and a limit switch 67 is provided on the base 3 to detect that the lever 65 has drooped. Therefore, if the drive of the motor 27 is permitted only when the limit switch 67 detects the lever 65, the rollers 23 and 25 are locked only when the plastic bag is securely sandwiched between the plate 21 and the rollers 23 and 25. The sample in the plastic bag can be crushed and dispersed by reciprocating motion.

In the homogenizer 1 thus constructed, the above-mentioned plastic bag is placed on the plate 21 and the roller 2
When the rollers 23 and 25 are reciprocated while being pressed by the rollers 3 and 25, the rollers 23 and 25 move on the plastic bag while rotating. Then, the rollers 23 and 25 and the groove 21a of the plate 21 move relative to each other with the plastic bag sandwiched therebetween, and the sample inside can be rubbed. Moreover,
Since the upper surface of the base 5 and the plate 21 are arranged so as to be inclined, when the rollers 23 and 25 reciprocate, the sample and the dispersion medium (particularly the dispersion medium) also move in the vertical direction. Therefore, an extremely strong crushing force is applied to the sample, and the sample can be crushed and dispersed well.

Further, in the homogenizer 1, as shown schematically in FIG. 6, a plurality of grooves 21 formed in the plate 21.
a and a groove 25a formed in the roller 25 (that is, the spacer 48 portion: the same applies to the roller 23).
It is provided so that and intersect diagonally. Therefore, shear stress acts on the sample that moves in the directions of the arrows X and Y along the grooves 21a and 25a at the portions where the plate 21 and the rollers 23 and 25 are in contact with each other. For example, plate 21
The groove 21a of the roller 25 and the groove 25a of the roller 25 contact
A force such as cutting with scissors acts on the sample. Therefore, the homogenizer 1 can extremely efficiently crush and disperse various samples, and easily crush and disperse elastic samples such as octopus and squid.

Further, since the structure for moving the rollers 23, 25 is also implemented by the simple structure of the combination of the motor 27 and the link 29, the structure of the entire apparatus can be simplified. Therefore, it is easy to downsize the device. Further, the crushed and dispersed state of the sample during the operation of the apparatus is as follows:
Can be easily observed through. Therefore, it is not necessary to use tempered glass or the like to make the plastic bag observable. In addition, in FIG. 1, the visible range on the plate 21 is shown by a chain double-dashed line. As described above, the homogenizer 1 according to the present embodiment is extremely inexpensive and can be downsized, but as described above, various samples can be efficiently crushed and dispersed.

Further, in the homogenizer 1, the rollers 23,
Not only are the 25 arranged in two rows, but the spacing between the rollers 23 and the spacing between the rollers 25 are made different by the spacers 47 and 48. In other words, the front and rear rollers 23, 25
The positions of the grooves formed in are different from each other. Therefore, not only can the sample be repeatedly rubbed by the front and rear rollers 23, 25, but also the pressing force from the rollers 23, 25 can be applied to each part of the sample more evenly and rubbed more uniformly. Therefore, there is an effect that the sample can be crushed and dispersed more favorably.

Further, in the above embodiment, the plate 21
However, the plate holder 53, the stopper 55, and the clamp base 57 are fixed to the upper surface of the base 5 without adhering. Therefore, the plate 21 can be replaced with another one as needed. Ie plate 2
The shape of the groove formed in the thick portion 21b of FIG.
In addition to the aforementioned V-shaped groove 21a shown in FIG.
As shown in FIG. 11, a helical groove 21d inclined in a certain direction,
A flat groove 21e formed at right angles to the moving direction of the rollers 23 and 25 as shown in FIG. 7C may be considered. In the example shown in FIG. 6, the cross-sectional shape of each of the grooves 21a to 21e is a rectangular cross-section as shown in the CC cut end view of FIG. 7D.

When the aforementioned V-shaped groove 21a is adopted, when the rollers 23 and 25 reciprocate on the groove 21a,
A force that spreads in the left-right direction and a force that compresses in the center act alternately on the sample. Therefore, the sample can be crushed and dispersed more favorably, but can be used by exchanging it with the plate 21 of the various forms described above, if necessary. In addition, the groove 21d of the Hasbah type includes the groove 21d and the rollers 23, 2
The structure is the simplest among the five grooves (25a, etc.) that obliquely intersect and contact. Therefore, the sample can be crushed and dispersed satisfactorily, and the manufacturing cost can be reduced.

Further, in the above embodiment, the rollers 23,
25 is separated by spacers 47 and 48, and substantially the surfaces of the rollers 23 and 25 as a whole are formed with grooves having a rectangular cross section along the moving direction of the rollers. However, it goes without saying that a spiral groove may be formed on the surface of the roller.

For example, in the example shown in FIG. 8, a plate 121 fixed to the upper surface of the base 5 is provided with a groove 121a parallel to the moving direction of the roller 125, and the roller 125 has two spiral grooves. 125a is formed. Also in this case, the groove 125a and the groove 121a are diagonally intersected and come into contact with each other, so that the shearing force (see FIG. 6) described above acts on the sample, and the same action and effect as those of the above-described embodiment are produced. . Further, when forming a spiral groove on the roller, it is preferable to form a spiral of left-right reverse winding from the center line L of the roller 225, like a groove 225a of the roller 225 shown in FIG. In this case, the groove 221a (roller 2
When the roller 225 reciprocates above (parallel to the moving direction of 25), a force for expanding the roller 225 in the axial direction and a force for compressing the sample in the central direction alternately act on the sample. For this reason,
The sample can be crushed and dispersed better.

Further, even when the spiral groove is formed in the roller, the sample can be crushed and dispersed more favorably by providing a plurality of rollers in the moving direction. In particular, FIG.
The rollers 123 and 125 shown in FIG.
Like the rollers 223 and 225 shown in (B), the grooves (123a, 125a or 223a, 225) formed in the front and rear rollers (123, 125 or 223, 225).
If the direction of the spiral of a) is left-right reversed, a more remarkable effect will be produced. In this case, the front and rear rollers (123, 125)
Or, the force in the opposite direction is successively applied to the sample that has continuously flowed into the groove (123a, 125a or 223a, 225a) of 223, 225). Therefore, the sample can be crushed and dispersed more favorably.

However, when the groove is formed along the moving direction of the roller as described above, a very large driving force is not required to move the roller while rotating as described above. Therefore, the driving means such as the motor 27 is further simplified,
Cost reduction and miniaturization are possible. Further, when such a groove is formed on the roller, the influence of the plurality of grooves formed on the base portion becomes more remarkable. For example, as described above, V
When combined with the V-shaped groove 21a, the force of pushing the sample leftward and rightward and the force of compressing the sample toward the center act more favorably.

The present invention is not limited to the above-described embodiments, and can be implemented in various forms without departing from the scope of the present invention. For example, although the rollers 23 and 25 are provided in two rows in the above embodiment,
It may be provided in rows or in three or more rows. Further, the plate 21 may be arranged horizontally or vertically. Furthermore,
In the above-described embodiment, a plurality of grooves 21a to 21e having a rectangular cross section are provided on the surfaces of the rollers 23 and 25 and the base portion 5, but a plurality of grooves having a V-shaped cross section or a rounded cross section may be provided. Good. Furthermore, the plastic bag has a clamp metal fitting 6 at one end.
It may be sealed by sandwiching it with the clamp base 57 and the clamp base 57, or may be provided with a so-called poly chuck on the poly bag itself, or may be sealed by welding one end of the poly bag.

[Brief description of drawings]

FIG. 1 is a top view showing a configuration of a homogenizer to which the present invention is applied.

FIG. 2 is a side view showing the configuration of the homogenizer.

FIG. 3 is a front view showing the configuration of the homogenizer.

FIG. 4 is a vertical sectional view showing the configuration of the homogenizer.

FIG. 5 is a transverse cross-sectional view showing a configuration of a roller unit of the homogenizer.

FIG. 6 is an explanatory diagram showing shear stress acting on a sample by the homogenizer.

FIG. 7 is an explanatory view showing another form of the thick portion of the plate.

FIG. 8 is an explanatory diagram illustrating an example of a roller having spiral grooves.

FIG. 9 is an explanatory diagram illustrating another example of a roller having a spiral groove.

FIG. 10 is an explanatory diagram illustrating an example in which two rollers each having a spiral groove are arranged.

[Explanation of symbols]

1 ... Homogenizer 3 ... Base
5 ... Stand 7 ... Bracket 9 ... Roller unit
11 ... Fastening links 21, 121, 221 ... Plates 23, 25, 123, 125, 223, 225 ... Roller 27 ... Motor 35 ... Roller holder 37 ... Slide rails 21a, 25a, 123a, 125a, 223a, 22
5a ... groove

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 4D063 CC01 CC02 CC07 GA03 GA07                       GB04 GB07 GC21 GD04 GD12                 4D067 CB03 CB07 GA03 GA13 GB03

Claims (7)

[Claims] 1. A table having a plurality of grooves formed on a surface thereof, on which a bag containing a sample is placed, and a table movably provided while rotating the surface of the table part, wherein the plurality of grooves are formed on the surface. And a drive means for moving the roller while rotating the roller along the surface of the base on which the bag is placed, and a plurality of grooves formed in the base. The crushing / dispersing device is characterized in that a plurality of grooves formed in the roller are provided so as to intersect and contact each other. 2. The plurality of grooves of the base portion are formed obliquely with respect to the moving direction of the roller, and the plurality of grooves of the roller are formed parallel to the moving direction of the roller. The crushing / dispersing device according to claim 1. 3. The crushing / dispersing device according to claim 2, wherein the plurality of grooves of the base portion are formed in a V-shape that is symmetrical with respect to the center line of the movement locus of the roller. 4. A pedestal having a plurality of grooves formed on a surface thereof, on which a bag containing a sample is placed, and a movably provided while rotating the surface of the pedestal surface, forming a spiral groove on the surface. A roller that presses the bag, and a drive unit that moves the roller while rotating the roller along the surface of the table on which the bag is placed. A crushing and dispersing device characterized by being formed in parallel or at right angles to the moving direction of the roller. 5. The crushing / dispersing device according to claim 4, wherein the spiral groove of the roller is formed in a spiral shape of left-right reverse winding from the center line of the roller. 6. The crushing / dispersing device according to claim 1, wherein a plurality of the rollers are provided in a moving direction thereof. 7. The crushing / dispersing device according to claim 1, wherein the surface of the pedestal portion is arranged so as to be inclined, and the roller moves along the inclination.