Cylinder tip mounting head, and head device and movement device each using same

Patent metadata

Field	Value
Publication number	US-9891143-B2
Application number	US-201715445089-A
Country	US
Kind code	B2
Filing date	Feb 28, 2017
Priority date	Jun 17, 2014
Publication date	Feb 13, 2018
Grant date	Feb 13, 2018

Abstract

A cylinder tip mounting head includes: a shaft member; a first cylindrical rod having a cylindrical space, which is mounted to a lower end of the shaft member, which is configured to move in the up-down direction integrally with the shaft member; a stationary second cylindrical rod, which has a housing space for housing the first cylindrical rod so that the first cylindrical rod is movable in the up-down direction, the stationary second cylindrical rod including a syringe mounting portion; and a discharge rod housed in the cylindrical space in the first cylindrical rod, the discharge rod including a plunger mounting portion. The discharge rod is configured to coordinate with the movement of the shaft member in the up-down direction so that the plunger mounted to the discharge rod reciprocates in the tubular passage in the syringe to suck the object into the tubular passage and discharge the sucked object.

First claim

The invention claimed is:

1. A head device which carries out operations to suck an object and discharge the sucked object by using a tip including a suction port, comprising:
a mounting head which has a cylindrical rod with a lower end including a tip mounting portion to which the tip is to be fitted, and a shaft member equipped in a housing space of the cylindrical rod in a movable manner in an up-down direction and configured to generate a suction force and a discharge force at the suction port by the movement thereof in the up-down direction;
a first motor configured to generate a drive force for moving the shaft member in the up-down direction;
a frame member which holds the mounting head and the first motor, the frame member including a coupling portion that receives a moving force;
a frame moving mechanism including a driving shaft member which is coupled to the coupling portion and a second motor that moves the frame member in the up-down direction by providing a drive force to the driving shaft member; and
a control unit which controls movement of the shaft member in the up-down direction by controlling drive of the first motor and height position of the head by controlling drive of the second motor.

2. The head device according to claim 1 , wherein
the tip is a cylinder tip which has a syringe including a tubular passage inside serving as a suction path for the object;
the shaft member includes a first cylindrical rod, which is mounted to a lowest portion of the shaft member;
the cylindrical rod includes a stationary second cylindrical rod, which has a housing space for housing the first cylindrical rod so that the first cylindrical rod is movable in the up-down direction, and a syringe mounting portion that is a lower portion of the cylindrical rod, serving as the tip mounting portion, to which a base end portion of the syringe is to be fitted; and
the control unit moves the shaft member including the first cylindrical rod in the up-down direction to suck the object into the tubular passage and discharge the sucked object.

3. The head device according to claim 1 , wherein
the tip is a cylinder tip which has a syringe including a tubular passage inside serving as a suction path for the object serving as a suction path for an object, and a plunger configured to reciprocate in the tubular passage;
the shaft member includes a first cylindrical rod, which is mounted to a lowest portion of the shaft member, and which has a cylindrical space formed therein;
the cylindrical rod includes a stationary second cylindrical rod, which has a housing space for housing the first cylindrical rod so that the first cylindrical rod is movable in the up-down direction, and a syringe mounting portion, which is a lower portion of the cylindrical rod, serving as the tip mounting portion, to which a base end portion of the syringe is to be fitted;
the mounting head further includes a discharge rod housed in the cylindrical space in the first cylindrical rod, the discharge rod including, at a lower end, a plunger mounting portion to which a base end portion of the plunger is to be fitted; and
the control unit moves the shaft member including the first cylindrical rod in the up-down direction so that the plunger mounted to the discharge rod reciprocates in the tubular passage in the syringe to suck the object into the tubular passage and discharge the sucked object.

4. A movement device, comprising:
a base;
the head device according to claim 1 arranged above the base;
a first container arranged at a first position on the base and configured to store an object;
a second container arranged at a second position on the base and configured to receive the object; and
a head moving mechanism configured to move the head device in a horizontal direction between the first container and the second container.

Assignees

• Yamaha Motor Co Ltd

Inventors

• Ito Saburo
• Osada Yukimasa
• Izume Yohei

Classifications

• G01N2001/1427

  Positive displacement, piston, peristaltic · CPC title

• G01N35/1074

  arranged in a two-dimensional array · CPC title

• G01N1/14 Primary

  Suction devices, e.g. pumps; Ejector devices · CPC title

• B01L3/022

  Capillary pipettes, i.e. having very small bore (B01L3/0224 - B01L3/0237 take precedence) · CPC title

• B01L3/0224 Primary

  having mechanical means to set stroke length, e.g. movable stops (B01L3/0231, B01L3/0234 take precedence) · CPC title