GB1254437A - Percussion tool - Google Patents
Percussion toolInfo
- Publication number
- GB1254437A GB1254437A GB5660768A GB5660768A GB1254437A GB 1254437 A GB1254437 A GB 1254437A GB 5660768 A GB5660768 A GB 5660768A GB 5660768 A GB5660768 A GB 5660768A GB 1254437 A GB1254437 A GB 1254437A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cylinder
- piston
- crank shaft
- apertures
- crank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D11/00—Portable percussive tools with electromotor or other motor drive
- B25D11/06—Means for driving the impulse member
- B25D11/12—Means for driving the impulse member comprising a crank mechanism
- B25D11/125—Means for driving the impulse member comprising a crank mechanism with a fluid cushion between the crank drive and the striking body
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
1,254,437. Percussive tools. S. YAMADA. 28 Nov., 1968, No. 56607/68. Heading B4C. In a percussive tool blows are imparted to a tool bit 19 by a piston 14 which floats with a cylinder 9 reciprocated in an outer cylinder 8 by a crank shaft 3 and a connecting rod 12. The crank shaft is driven by an external motor e.g. an I.C. engine or electric motor via gears 1 which mesh with gear teeth 2 on the crank shaft. The inner cylinder has apertures 16, 16<SP>1</SP> to allow atmospheric air, introduced via an aperture (not shown) in the outer wall of cylinder 8 or in casing 6, annular space 17 and apertures 11c, to enter the spaces between the piston and end walls of the cylinder 9 and to act as a cushioning means during reciprocation to prevent impacting between the piston and inner cylinder. The crank-shaft has cut outs 4 therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5660768A GB1254437A (en) | 1968-11-28 | 1968-11-28 | Percussion tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5660768A GB1254437A (en) | 1968-11-28 | 1968-11-28 | Percussion tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1254437A true GB1254437A (en) | 1971-11-24 |
Family
ID=10477063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5660768A Expired GB1254437A (en) | 1968-11-28 | 1968-11-28 | Percussion tool |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1254437A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1454718A1 (en) * | 2001-11-09 | 2004-09-08 | Yamada Machinery Industrial Co., Ltd. | Engine braker |
| CN114545757A (en) * | 2022-04-26 | 2022-05-27 | 天津海鸥表业集团有限公司 | Frock is used in balance shaft dismouting |
| CN117127904A (en) * | 2023-08-17 | 2023-11-28 | 浙江普兰卡钎具股份有限公司 | impactor |
| CN117399495A (en) * | 2023-12-14 | 2024-01-16 | 山西天宝集团有限公司 | Wind power mixing tower adapter flange large-aperture machining device and machining method thereof |
-
1968
- 1968-11-28 GB GB5660768A patent/GB1254437A/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1454718A1 (en) * | 2001-11-09 | 2004-09-08 | Yamada Machinery Industrial Co., Ltd. | Engine braker |
| EP1454718A4 (en) * | 2001-11-09 | 2009-06-17 | Yamada Machinery Ind Co Ltd | Engine braker |
| CN114545757A (en) * | 2022-04-26 | 2022-05-27 | 天津海鸥表业集团有限公司 | Frock is used in balance shaft dismouting |
| CN114545757B (en) * | 2022-04-26 | 2022-07-05 | 天津海鸥表业集团有限公司 | Frock is used in dismouting of balance shaft |
| CN117127904A (en) * | 2023-08-17 | 2023-11-28 | 浙江普兰卡钎具股份有限公司 | impactor |
| CN117127904B (en) * | 2023-08-17 | 2024-02-13 | 浙江普兰卡钎具股份有限公司 | impactor |
| CN117399495A (en) * | 2023-12-14 | 2024-01-16 | 山西天宝集团有限公司 | Wind power mixing tower adapter flange large-aperture machining device and machining method thereof |
| CN117399495B (en) * | 2023-12-14 | 2024-03-15 | 山西天宝集团有限公司 | Wind power mixing tower adapter flange large-aperture machining device and machining method thereof |
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