Cylinder dividing mechanism of a pneumatic tool
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F03C-002/00
F01C-021/00
F03C-004/00
F04C-002/00
F04C-015/00
B23B-045/04
B27C-003/08
출원번호
US-0365756
(2012-02-03)
등록번호
US-8647084
(2014-02-11)
발명자
/ 주소
Chang, Ching-Shun
출원인 / 주소
Sing Hua Industrial Co., Ltd.
대리인 / 주소
Egbert Law Offices, PLLC
인용정보
피인용 횟수 :
0인용 특허 :
2
초록▼
In a cylinder dividing mechanism of a pneumatic tool, the first and second air pressure driving spaces are formed in the chamber, the first and second external channels are set externally on the circumferential wall, the first external channel is connected with the first air intake and air intake/ex
In a cylinder dividing mechanism of a pneumatic tool, the first and second air pressure driving spaces are formed in the chamber, the first and second external channels are set externally on the circumferential wall, the first external channel is connected with the first air intake and air intake/exhaust dividing controller, and the second external channel is connected with the second air intake and air intake/exhaust dividing controller. As such, a single chamber is provided with two air pressure driving spaces for synchronous compression and driving of the rotor. The driving torsion for the pneumatic tool could be multiplied without need of increasing the volume of the chamber of the cylinder to cater for the need of the users with improved applicability.
대표청구항▼
1. A cylinder dividing mechanism of a pneumatic tool, which is accommodated in the groove of the pneumatic tool; the cylinder comprises of a circumferential wall and an internal chamber, of which the chamber is used to hold a rotor, onto which several vanes are set circumferentially for abutting ont
1. A cylinder dividing mechanism of a pneumatic tool, which is accommodated in the groove of the pneumatic tool; the cylinder comprises of a circumferential wall and an internal chamber, of which the chamber is used to hold a rotor, onto which several vanes are set circumferentially for abutting onto the circumferential wall of the cylinder; it comprising: the rotor is set at a central demarcation point in the chamber, such that the chamber is segregated into a first and a second air pressure driving space;of which, the first and second air pressure driving spaces have an air intake section, a compression section and a pressure relief section;an air intake/exhaust dividing controller is set externally on the circumferential wall of the cylinder correspondingly to the joint of the first and second air pressure driving spaces;a first and a second external channel are set externally at interval on the circumferential wall of the cylinder, and either end of the first/second external channels is connected with the air intake/exhaust dividing controller;a first air intake is set on the circumferential wall of the cylinder and connected with the air intake section of the first air pressure driving space and the air intake/exhaust dividing controller;a first air vent is set on the circumferential wall of the cylinder and connected with the pressure relief section of the first air pressure driving space and the first external channel;a second air intake is set on the circumferential wall of the cylinder and connected with the air intake section of the second air pressure driving space and the second external channel;a second air vent is set on the circumferential wall of the cylinder and connected with the pressure relief section of the second air pressure driving space and the air intake/exhaust dividing controller;when air stream is guided by the air intake/exhaust dividing controller, it is divided and guided by two air intakes, air vents and external channels, such that a single chamber is provided with two air pressure driving spaces for synchronous compression and driving of the rotor to increase the torsion for the pneumatic tool. 2. The structure defined in claim 1, wherein the first and second external channels are formed by circumferential troughs set at interval externally on the circumferential wall of the cylinder. 3. The structure defined in claim 1, wherein the first and second external channels are also formed by circumferential troughs set at interval on the groove of the pneumatic tool. 4. The structure defined in claim 1, wherein if air stream is guided counterclockwise by the air intake/exhaust dividing controller, air intake/exhaust of the first air intake and first air vent is exchanged in the same way as the second air intake and second air vent. 5. The structure defined in claim 1, wherein said air intake/exhaust dividing controller comprises of a valve pipe and a flow path switching valve set rotatably in the valve pipe; the flow path switching valve includes an air intake duct, an air intake guiding portion, an air exhaust guiding portion and a rotary control button; an exhaust channel set in the pneumatic tool can be connected with the air exhaust guiding portion, such that the first air intake and one end of the second external channel on the circumferential wall are connected with the air intake guiding portion, and one end of the first external channel and the second air vent connected with the air exhaust guiding portion; of which, the sectional area of the second external channel is smaller than that of the first external channel; when the rotor is under clockwise rotation mode, the air pressure thrust of the second air pressure driving space is smaller than that of the first air pressure driving space. 6. The structure defined in claim 1, wherein said air intake/exhaust dividing controller comprises of a valve pipe and a flow path switching valve set rotatably in the valve pipe; the flow path switching valve comprises an air intake duct, an air intake guiding portion, an air exhaust guiding portion and a rotary control button; an exhaust channel set in the pneumatic tool can be connected with the air exhaust guiding portion, such that one end of the second external channel is connected directly with the exhaust channel, the first air intake of the circumferential wall is connected with the air intake guiding portion, and one end of the first external channel and the second air vent are connected with the air exhaust guiding portion; when the rotor is under clockwise rotation mode, air pressure thrust is guided only by the first air pressure driving space; when the rotor is under counterclockwise rotation mode, air pressure thrust is guided synchronously by the first and second air pressure driving spaces for compression and driving of the rotor.
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