EP1324862A1 - Outil de frappe a embouts interchangeables - Google Patents
Outil de frappe a embouts interchangeablesInfo
- Publication number
- EP1324862A1 EP1324862A1 EP01972221A EP01972221A EP1324862A1 EP 1324862 A1 EP1324862 A1 EP 1324862A1 EP 01972221 A EP01972221 A EP 01972221A EP 01972221 A EP01972221 A EP 01972221A EP 1324862 A1 EP1324862 A1 EP 1324862A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylindrical
- end piece
- striking
- cylindrical bearing
- bearing surface
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D1/00—Hand hammers; Hammer heads of special shape or materials
- B25D1/02—Inserts or attachments forming the striking part of hammer heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/06—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races
Definitions
- the invention relates to the technical sector of striking tools and instruments.
- the known hand typing tools are designed to be used in a single application. They therefore generally consist of a one-piece body with a striking head at one end, and a contact and contact area at the other end to come onto the piece to be struck intended to be pressed into a wall or other support. , or on a tool, for example in the application of pin drives, or other similar intervention.
- a grip and protection handle is positioned on the body of the tool.
- the hand striking tool is used for limited specific purposes. It is therefore necessary to have a range of striking tools according to the uses on parts, parts, tools or the like to be struck which can be produced in different materials.
- US Patent 3320986 discloses a chisel whose head is assembled on the body by a male-female socket.
- This chisel can be arranged in a first variant with a fixed connection by soldering or welding the head on the body.
- the object of the invention is to overcome these constraints.
- the applicant sought a solution allowing the use of a hand-held striking tool receiving interchangeable tips, but without there being any risk of deterioration in the connection between them, during successive striking efforts during the use of the tool, and in particular deterioration of the thread.
- the applicant's approach was therefore to seek a solution to this problem posed, a solution which is simple to carry out and without excessive cost, to take account of the value of the striking tools on the market.
- the solution provided should not be able to substantially outbid the cost of manufacturing the striking tool compared to the possibility of obtaining a range of striking tools, according to known market conditions.
- the striking tool of the type comprising a body mounted with a rear end forming a striking head and capable of receiving a grip and protection handle, is remarkable in that said body is arranged in its front end part with a cylindrical inner surface extending by a blind interior cavity, said body receiving a removable profiled endpiece whose front part constitutes the useful striking zone on the support product to be struck, while the rear part of said endpiece is arranged with an externally projecting flange, constituting by its rear face a zone of abutment against the end face of said body, said end piece extending at the rear of said flange by a first cylindrical seat capable of being in correspondence after assembly with the cylindrical seat formed on said body, said first cylindrical seat extends geant by a groove, then by a second cylindrical bearing engaging in the internal cavity of the body, and in that said internal cavity of the body and said second cylindrical bearing of the endpiece are arranged with complementary connecting means to ensure the retention and control of the withdrawal of the tip relative to said body, and in that the
- FIG. 1 is a perspective view of a striking tool receiving a tip according to the invention, shown before assembly in a first embodiment.
- FIG. 1 is a perspective view after mounting the nozzle in the body, according to Figure 1.
- FIG. 3 is a partial sectional view before mounting the nozzle in the body, according to Figure 2, in a first implementation.
- FIG. 4 is a longitudinal sectional view of the striking tool after mounting the tip in the body, according to Figure 2, in a first implementation.
- FIG. 5 is a partial sectional view before mounting the nozzle in the body, in a second implementation.
- FIG. 6 is a longitudinal sectional view of the striking tool after mounting the tip in the body, according to Figure 5, in a second implementation.
- FIG. 7 is a partial sectional view before mounting the tip in the coips, in a third implementation.
- FIG. 8 is a longitudinal sectional view of the striking tool after mounting the tip in the body, according to Figure 7, in a third implementation.
- the striking tool is referenced as a whole by (O) and comprises a cylindrical body (1) of great length, having at its front end a striking head (la), capable of receiving a grip and protection handle ( 2).
- the characteristics of this handle, with or without guard, are arbitrary.
- a nonlimiting example has been shown in the drawings for understanding the invention.
- the other end (lb) of the body thus has and according to the invention, an internal cylindrical bearing (le) extending in a first implementation by a blind cavity in the form of a tapping (ld) of great length.
- This body is capable of receiving a tip (3) which can be made of all metallic materials, aluminum, brass, bronze, or synthetic materials, such as that known commercially under the brand Nylon®, or other materials. Said tip is made in one piece from one of the aforementioned materials.
- This end piece (3) has, in its front part, a useful zone (3a) constituting the bearing zone of the part to be struck, the part being arbitrary.
- the tip has, in its middle part, advantageously, a collar (3b) which can advantageously be knurled or striated to facilitate handling by the operator.
- This cylindrical zone forming a flange, or alternatively (not shown in the drawings), forming a continuous tabular element, is extended behind by a first cylindrical seat (3 c) of smaller section than the flange or the barrel of the endpiece.
- This litter is meant to come fit into the inner surface formed on the tool body. It therefore has a length adapted to that of the inner surface of the tool, to ensure a firm connection and guidance.
- a groove (3d) Adjacent to the bearing surface formed on the end piece, a groove (3d) is provided, followed by a second cylindrical threaded bearing (3e) capable of cooperating with the above-mentioned internal thread (ld) formed in the coips.
- the nozzle is stopped by the body before the second threaded seat (3 e) is at the end of tapping, so the forces during striking are not undergone by the threads of thread (3e), but by the first cylindrical shouldered bearing (3c) of the end piece coming into mechanical abutment against the front part of the handle.
- the positioning of the nozzle in the body is effected by screwing the nozzle at the end of said body.
- the cylindrical bearings (lc-3c) are in correspondence with one another, so that when there are striking forces exerted on the tool, the damping of said forces is effected by the abovementioned bearings (lc -3c), without any specific effect on the threaded area.
- the second cylindrical bearing surface (3e) of the endpiece (3) has a smooth outer part with, in a plane perpendicular to its longitudinal axis, a housing (3f) receiving a ball (3 g) in support on a return spring (3h).
- the ball (3g) is crimped on the smooth surface with a slight external overflow.
- the inner cavity (the) of the body which is blind is smooth.
- the ball (3g) retracts into its housing against the return spring. Said ball under the pressure of the return spring exerts a force on the wall of the cavity (the) opposite tending to ensure locking of the nozzle in the coips by a braking and retaining effect.
- the second cylindrical bearing surface of the nozzle remains smooth, while the internal cavity (le) of the body is provided with a grooving (lf) allowing the insertion of a rod (lg ) with elastic deformation capacity, by its constituent material for example.
- This ring comes to bear on the second cylindrical bearing surface of the endpiece and also exerts a binding and retaining effect allowing a locking to be obtained.
- the internal cavity of the coips and the second cylindrical bearing surface of the endpiece are arranged with complementary connecting means to ensure the retention and the control of the withdrawal of the endpiece relative to the body.
- the holding and fixing of the endpiece as well as its centering are carried out by a precision assembly -h9-, so that the two reference faces (3c- le) and (3b- lb) allow, during use, rigidity of the two parts, tip and handle, in order to guarantee optimum precision of the work.
- the thread for the models provided with threaded parts (fig. 3 and 4) and no more than for the other cases, ball or other (fig. 5, 6, 7 and 8) is used as a means of transmitting the shock .
- the purpose of threading is to be a retainer for the nozzle relative to the handle, in case of jamming of the nozzle for any reason.
- the tip can advantageously be made of any suitable material, metallic, brass or bronze type, or be made of aluminum or synthetic material such as Nylon®, or any other material suitable for each use.
- the different tips in all materials have strictly the same characteristics and can therefore be applied without any interchangeability difficulty in the body.
- the various end pieces systematically have an identical part corresponding to the attachment area of the end piece in the body, under the conditions which have been mentioned previously.
- the useful part can have various configurations depending on the fields of application and use of the tips.
- the invention finds many advantages.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0013100A FR2814976B1 (fr) | 2000-10-09 | 2000-10-09 | Outil de frappe a embouts interchangeables |
| FR0013100 | 2000-10-09 | ||
| PCT/FR2001/002987 WO2002030625A1 (fr) | 2000-10-09 | 2001-09-27 | Outil de frappe a embouts interchangeables |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1324862A1 true EP1324862A1 (fr) | 2003-07-09 |
Family
ID=8855297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01972221A Withdrawn EP1324862A1 (fr) | 2000-10-09 | 2001-09-27 | Outil de frappe a embouts interchangeables |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1324862A1 (fr) |
| AU (1) | AU2001292007A1 (fr) |
| FR (1) | FR2814976B1 (fr) |
| WO (1) | WO2002030625A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI468268B (zh) * | 2014-05-02 | 2015-01-11 | Centrifuge Ind Co Ltd | 適用敲擊工具用之衝擊件之連接桿 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR892745A (fr) * | 1943-03-22 | 1944-05-17 | Perfectionnements aux chasse-goupilles, poinçons et outils de choc analogues | |
| US3320986A (en) * | 1965-04-09 | 1967-05-23 | Thor Hammer Company Ltd | Chisels |
| US4624323A (en) * | 1985-02-07 | 1986-11-25 | Burrola Henry G | Multi-purpose impact hand tool kit |
| US4872231A (en) * | 1988-07-19 | 1989-10-10 | Willard Gustavsen | Impact blade tool |
-
2000
- 2000-10-09 FR FR0013100A patent/FR2814976B1/fr not_active Expired - Lifetime
-
2001
- 2001-09-27 WO PCT/FR2001/002987 patent/WO2002030625A1/fr not_active Ceased
- 2001-09-27 EP EP01972221A patent/EP1324862A1/fr not_active Withdrawn
- 2001-09-27 AU AU2001292007A patent/AU2001292007A1/en not_active Abandoned
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0230625A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2814976A1 (fr) | 2002-04-12 |
| AU2001292007A1 (en) | 2002-04-22 |
| FR2814976B1 (fr) | 2003-01-10 |
| WO2002030625A1 (fr) | 2002-04-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20030313 |
|
| AK | Designated contracting states |
Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
| AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: RACODON, BRUNO Owner name: RACODON OUTILLAGE |
|
| 17Q | First examination report despatched |
Effective date: 20071228 |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20090613 |