JPH05284961A - Shaking machine oscillating in wavy form - Google Patents

Abstract

PURPOSE:To provide an oscillating and gyrating shaking machine having simple structure and operation procedure and adjustable oscillation angle and amplitude. CONSTITUTION:A horizontal rotor 2 is placed in a box 1 having an opening on the upper face. A loose hole 3 is formed on the upper face of the horizontal rotor 2 at a point deviated from the rotational center. A gyration shaft 4 protruding its upper end through the above opening is inserted into the loose hole in a non-rotatable state. The middle part of the gyration shaft 4 is supported by a fixed or vertically movable bearing 5 to concentrate the rotary orbit on the center of the horizontal rotor 2. A shaking table 6 is supported on the top of the gyration shaft 4 and allowed to oscillate in inclined wavy form around the bearing 5. The upper surface of the horizontal rotor 2 is provided with two or more loose holes 3 arranged from the center toward the circumference.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shaker that tilts and oscillates in an up-and-down wave type, and more specifically, to a shaker capable of adjusting the wave-type shaking to a constant or large or small size, particularly in molecular biology research. The present invention relates to a shaker that can be effectively used for analysis of DNA extraction, hybridization, gel staining / decolorization, and the like.

[0002]

2. Description of the Related Art Conventionally, a shaker oscillating in a wave type is shown in FIG.
A motor with the rotating shaft 22 facing upward in the box body 21 as shown in
23 is installed, a bending portion 24 is provided on the upper portion of the rotating shaft 22, a shaking table 26 is attached to the upper end of the bending portion 24 via a bearing 25, and the shaking table 26 is not continuously rotated with the rotating shaft 22. Therefore, it is configured to be separately supported by a support member 27 that vertically expands and contracts.

However, the shaker described above is expensive because it requires the dedicated motor 23 having the bent portion 24, and the structure of the support member 27 is complicated, which causes a failure. There was a problem that the amplitude of the shaking table could not be adjusted at all.

[0003]

According to the present invention, a horizontal rotating body 2 is provided in a box body 1 having an opening on the upper surface, and a play hole 3 is provided at an eccentric point on the upper surface of the horizontal rotating body 2 so that the upper end thereof is provided. The swivel shaft 4 protruding above the opening is loosely fitted and inserted without rotation,
A fixed or vertically adjustable bearing 5 for fitting the rotation locus on the center of the horizontal rotating body 2 is inserted in the middle of the above, and a shaking table 6 is supported at the upper end of the rotating shaft 4 The slanting base 6 is tilted and oscillated in a wave shape based on the bearing 5, and two or more play holes 3 on the upper surface of the horizontal rotating body 2 are arranged side by side from the center toward the side circumference. Then, the problem is solved.

[0004]

When the switch is turned on to rotate the horizontal rotary body 2, the rotary shaft 4 is inserted into the play hole 3 in the eccentric position of the horizontal rotary body 2.
Eccentrically turns, and the turning axis 4 is placed on the center of the horizontal rotating body 2.
The upper half of the swivel shaft 4 swivels symmetrically with the lower half on the basis of the bearing 5 fitted in the middle of the, so that the shaking table 6 attached to the upper end of the swivel shaft 4 falls as if the spinning top stopped. The wave will oscillate in the state immediately before. When the bearing 5 is adjusted upward or downward, the tilt angle of the swivel shaft changes depending on the amount of movement of the distance between the play hole 3 and the bearing 5, and the angular amplitude of the shaking table 6 can be adjusted to large or small. .. Further, by providing two or more play holes 3 on the upper surface of the horizontal rotary body 2, selecting the play hole 3 distant from the center and inserting the swivel shaft 4 to increase the difference in the eccentric distance of the play hole 3. Similarly, the angle amplitude can be changed.

[0005]

Embodiments Embodiments will be described below with reference to the drawings.

1 and 2 show a first embodiment,
The opening in the box 1 having a circular opening 1a in the center of the upper surface
The motor 7 is provided at a position below 1a, and the center of the bottom surface of the cylindrical horizontal rotating body 2 is attached to the upward shaft 7a of the motor 7. A bottomed play hole 3 is provided at an eccentric point on the upper surface of the horizontal rotary body 2, and a lower end of a round rod-shaped turning shaft 4 having a diameter smaller than that of the playing hole 3 is loosely fitted and inserted, and an intermediate portion of the turning shaft 4 is provided. Is supported by the outer fitting of a bearing 5 having a two-cylinder structure that mutually slides on the center of the horizontal rotating body 2. The bearing 5 is a fixing member 5a extending to one side.
Is fixed and fixed to a mounting plate 8 provided in the box body 1. The upper end of the swivel shaft 4 projects above the opening 1a, and the supporting member 4a is fitted to the projecting portion to support the center of a shaking table 6 formed in a flat rectangular shape. Reference numeral 9 is a stopper mechanism for rotating the swivel shaft 4 without rotating, and is attached to the box body 1 and the stopper rod 9a which is fitted and extended at an intermediate position of the swivel shaft 4 as shown in FIGS. And a frame member 9b that allows the stopper rod 9a to swing up and down and prevents it from swinging in the horizontal direction. Although not shown, a 1.5 ml microtube test tube, a container holder dedicated to a centrifuge tube, and the like, which are often used in molecular biology research, are replaceably mounted on the shaking table 6.

When the horizontal rotating body 2 is rotated by the motor 7 by turning on the switch 10, the eccentric rotation of the lower end of the swivel shaft 4 causes the shaking table 6 to be wave-shaped as shown in FIG. Inclination and swinging will occur.

6 (a) and 6 (b) are sectional views of the essential part of the second embodiment of the present invention, in which the cylindrical body 11 having a spiral groove 11a on its outer periphery is screwed into the spiral groove 1b.
A bearing 5 that is vertically movably screwed into the attached opening 1a and is fitted around the swivel shaft 4 is provided at the lower end of the tubular body 11, and the tubular body 11 is moved up and down to move the position of the bearing 5 upward. Alternatively, it is possible to adjust the inclination angle of the turning shaft 4 by adjusting the tilting angle of the turning shaft 4 by moving downward to increase or decrease the distance from the horizontal rotating body 2.

FIG. 7 shows a third embodiment in which four play holes 3 are arranged in parallel from the center C toward the side circumference on the horizontal rotary body 2. The eccentric amount can be adjusted and the angular amplitude of the shaking table 6 can be adjusted by selecting and inserting one of the play holes 3 that is far from the center of the swivel shaft 4.

[0010]

According to the present invention, with the above construction, it is possible to provide a wave-oscillating shaker which has a simple structure, is easy to operate and has few failures, at a low cost.

Further, the amplitude of the shaking table can be adjusted by adjusting the vertical movement of the bearing that supports the turning shaft, or by selecting and inserting a play hole that is far from the center of the turning shaft.

As a result of the above, it is possible to widely and effectively use the characteristic shaking of the wave-type shaker by attaching a container holder for exclusive use of a 1.5 ml microtube test tube and a centrifuge tube which are often used in molecular biology research. The effect of being able to do is produced.

[Brief description of drawings]

FIG. 1 is a perspective view of a shaker according to the present invention.

FIG. 2 is a vertical sectional view of the same.

FIG. 3 is a side view of a stopper mechanism.

FIG. 4 is an overall front and side view showing an operation example.

FIG. 5 is an enlarged partial view of the same.

FIG. 6A is a sectional view showing an essential part of the second embodiment, and FIG.
FIG. 7 is a sectional view showing a state in which the bearing is upwardly adjusted.

FIG. 7 is a partially enlarged plan view of a horizontal rotating body according to a third embodiment.

FIG. 8 is a diagram illustrating a conventional example.

[Explanation of symbols]

 1 is a box 1a is an opening 2 is a horizontal rotating body 3 is a play hole 4 is a swivel axis 4a is a supporting member 5 is a bearing 5a is a fixing member 6 is a shaking table 7 is a motor 8 is a mounting plate 9 is a stopper mechanism 9a Is a stopper rod 9b is a frame member 10 is a switch 11 is a cylindrical body 11a, 1b is a screw groove C is a center of a horizontal rotating body

Claims (2)

[Claims] 1. A horizontal rotating body 2 is provided in a box body 1 having an opening on the upper surface, and a play hole 3 is provided at an eccentric point on the upper surface of the horizontal rotating body 2 so that the upper end projects above the opening. The swivel shaft 4 is loosely inserted in a non-rotating manner, and a fixed or vertically adjustable bearing 5 is inserted in the middle of the swivel shaft 4 for concentrating the rotation locus on the center of the horizontal rotary body 2. A shaking table 6 is supported on the upper end of the swivel shaft 4, and the shaking table 6 is tilted and oscillated in a wave shape based on the bearing 5 so as to oscillate in a wave shape. Machine. 2. A wave-type oscillating shaker according to claim 1, wherein two or more play holes 3 are arranged in parallel from the center of the upper surface of the horizontal rotating body 2 toward the side circumference. ..