Hand-held power tool with a pneumatic percussion mechanism
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B25D-011/10
B25D-009/26
출원번호
UP-0218665
(2008-07-16)
등록번호
US-7802711
(2010-10-21)
우선권정보
DE-10 2007 000 391(2007-07-19)
발명자
/ 주소
Fuenfer, Josef
출원인 / 주소
Hilti Aktiengesellschaft
대리인 / 주소
Abelman, Frayne & Schwab
인용정보
피인용 횟수 :
3인용 특허 :
8
초록▼
A hand-held power tool includes a pneumatic percussion mechanism (20) having a driving member (22) reciprocating in the guide tube (21), a percussion member (23) driven by the driving member (22), and an air spring (24) located between the driving member (22) and the percussion member (23) transmits
A hand-held power tool includes a pneumatic percussion mechanism (20) having a driving member (22) reciprocating in the guide tube (21), a percussion member (23) driven by the driving member (22), and an air spring (24) located between the driving member (22) and the percussion member (23) transmits a reciprocating movement of the driving member (22) to the percussion member (23), The hand-held power tool further includes a motor-driven elongate swashplate member (29) for reciprocating the driving member (22) a displacement stroke of which is adjusted by an adjusting member (31) displaceable along a longitudinal extent of a swashplate member (29) for adjusting a swashplate angle that determines the displacement stroke of the driving member (22).
대표청구항▼
What is claimed is: 1. A hand-held power tool, comprising: a pneumatic percussion mechanism (20) defining a central percussion axis (S) and having a guide tube (21), a driving member (22) reciprocating in the guide tube (21), a percussion member (23) driven by the driving member (22), and an air sp
What is claimed is: 1. A hand-held power tool, comprising: a pneumatic percussion mechanism (20) defining a central percussion axis (S) and having a guide tube (21), a driving member (22) reciprocating in the guide tube (21), a percussion member (23) driven by the driving member (22), and an air spring (24) located between the driving member (22) and the percussion member (23) for transmitting a reciprocating movement of the driving member (22) to the percussion member (23); a motor (12) for driving the percussion mechanism (20); a motor-driven elongate swashplate member (29) for reciprocating the driving member (22); an adjustment device (30) for adjusting a displacement stroke of the driving member (22) and including an adjusting member (31) displaceable along a longitudinal extent of the swashplate member (29) for adjusting a swashplate angle that determines the displacement stroke of the driving member (22); and a hub member (25) for transmitting the stroke movement to the swashplate member (29), wherein the hub member (25) is displaceable by the adjusting member (31) along the longitudinal extent of the swashplate member (29) relative thereto and wherein the hub member (25) has a bearing support (27) through which the swashplate member (29) is displaceable. 2. A hand-held power tool according to claim 1, wherein the hub member (25) has an elongate opening (26) for a rotatable eccentric journal (18) spaced in a longitudinal direction of the hub member (25) from the bearing support (27), the hub member (25) being axially displaceable along a longitudinal extent of the eccentric journal (18) by the adjusting member (31). 3. A hand-held power tool according to claim 1, further comprising a pivot sleeve (28) for pivotally supporting the swashplate member (29) in the bearing support (27). 4. A hand-held power tool according to claim 3, wherein the pivot sleeve (28) has a ball-shaped outer configuration, and the bearing support (27) has an inner profile corresponding to a curvature of the ball-shaped outer configuration of the pivot sleeve (28). 5. A hand-held power tool according to claim 1, wherein the adjustment device (30) includes a manually actuatable actuation member (34) for the adjusting member (31). 6. A hand-held power tool according to claim 5, wherein the adjusting member (31) has a first adjusting element (35) cooperating with a second adjusting element (36) provided on the actuation member (34). 7. A hand-held power tool according to claim 5, wherein the actuation member (34) is formed as a thumb wheel. 8. A hand-held power tool according to claim 1, wherein the swashplate member (29) has, at an end thereof remote from the driving member (22), a support member (39) pivotally supported on a counter-support member (40) and axially fixed with respect to a longitudinal extent thereof. 9. A hand-held power tool, comprising: a pneumatic percussion mechanism (20) defining a central percussion axis (S) and having a guide tube (21), a driving member (22) reciprocating in the guide tube (21), a percussion member (23) driven by the driving member (22), and an air spring (24) located between the driving member (22) and the percussion member (23) for transmitting a reciprocating movement of the driving member (22) to the percussion member (23); a motor (12) for driving the percussion mechanism (20); a motor-driven elongate swashplate member (29) for reciprocating the driving member (22); and an adjustment device (30) for adjusting a displacement stroke of the driving member (22) and including an adjusting member (31) displaceable along a longitudinal extent of the swashplate member (29) for adjusting a swashplate angle that determines the displacement stroke of the driving member (22), wherein the adjustment device (30) includes a manually actuatable actuation member (34) for the adjusting member (31) and wherein the adjusting member (31) has a first adjusting element (35) cooperating with a second adjusting element (36) provided on the actuation member (34). 10. A hand-held power tool, comprising: a pneumatic percussion mechanism (20) defining a central percussion axis (S) and having a guide tube (21), a driving member (22) reciprocating in the guide tube (21), a percussion member (23) driven by the driving member (22), and an air spring (24) located between the driving member (22) and the percussion member (23) for transmitting a reciprocating movement of the driving member (22) to the percussion member (23); a motor (12) for driving the percussion mechanism (20); a motor-driven elongate swashplate member (29) for reciprocating the driving member (22), wherein the swashplate member (29) has, at an end thereof remote from the driving member (22), a support member (39) pivotally supported on a counter-support member (40) and axially fixed with respect to a longitudinal extent thereof; and an adjustment device (30) for adjusting a displacement stroke of the driving member (22) and including an adjusting member (31) displaceable along a longitudinal extent of the swashplate member (29) for adjusting a swashplate angle that determines the displacement stroke of the driving member (22).
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이 특허에 인용된 특허 (8)
Nilsson Gran A. (Box 61 Sandarne SEX S-820 22) Edstrm Kjell E. E. (Åsbcksgatan 43 Sderhamn SEX S-826 00) Wiklund Henry W. (Bckvgen 1 ArbrSEX S-820 10), Device in needle hammers.
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