WO1990015695A1 - Shock absorbed striking tool - Google Patents

Shock absorbed striking tool Download PDF

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Publication number
WO1990015695A1
WO1990015695A1 PCT/SE1990/000448 SE9000448W WO9015695A1 WO 1990015695 A1 WO1990015695 A1 WO 1990015695A1 SE 9000448 W SE9000448 W SE 9000448W WO 9015695 A1 WO9015695 A1 WO 9015695A1
Authority
WO
WIPO (PCT)
Prior art keywords
striking
shaft part
end portion
shaft
recess
Prior art date
Application number
PCT/SE1990/000448
Other languages
French (fr)
Inventor
Stefan Erikslund
Original Assignee
Stefan Erikslund
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Stefan Erikslund filed Critical Stefan Erikslund
Publication of WO1990015695A1 publication Critical patent/WO1990015695A1/en

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
    • B25D1/12—Hand hammers; Hammer heads of special shape or materials having shock-absorbing means

Definitions

  • striking tool for instance a hammer, comprising a striking part and a shaft part, the one end portion of the shaft part being fastened to the striking part, and a shock-absorbing material being inserted between the striking part and the shaft part.
  • shock-absorbing layer between the striking part and the shaft part. This shock-absorbing layer extends along the extension of the whole
  • This invention relates to elminate the problems with known technique and offer a striking tool, for instance a hammer, which is shock-absorbed but still has good nail extraction qualities.
  • FIG. 1 there a first embodiment of the striking tool according to the invention in the form of a hammer.
  • This one in the known way has a striking part 10, provided with nail extraction means 11, and a shaft part 12 the one end portion 13 of which is fastened to a recess 14 in the striking part 10 by means of a rubber-suspended
  • the recess 14 almost extends through the striking part and has essentially the same cross section straightly through. However, the recess 14 has an enlargement 16 at the very bottom of the recess which enlargement is arranged in the direction towards the nail extraction means 11 and is intended to be in contact with a projection 17 on the outer part of the end portion 13 of the striking part, when the hammer is in a resting position or is used for nail extraction.
  • the enlargement 16 and the projection 17 are placed on that side of the longitudinal center line L of the shaft part 12 which is directed to the nail extraction means 11 and has bevelled edge portions being in contact with each other and forming a locking function, whereby the load and by that the wear of the security pin 15 is reduced.
  • the shaft part 12 has a projection 18 at the rear part of the end portion 13 on the other side of the longitudinal center line L of the shaft part. This projection is intended to rest against the outer portion of the recess 14 so that there is firm support also at the outer portion of the recess when
  • the end portion 13 of the shaft part 12 has such a form that it does not fill out the recess 14. In these spaces between the striking part and the shaft part there is an absorbing material 19 made of rubber, plastic or another suitable material inserted. Due to the mentioned design of the firm supports, the shaft part 12 will during strikes by means of the hammer wrench in the striking plane in relation to the
  • this wrench is made against the action of this material.
  • the shocks when striking are absorbed so that the hammer becomes lenient to use.
  • the good nail extraction qualities can be maintained since the contact between the shaft part and the striking part is incompressible.
  • the holding of the shaft part 22 in the striking part 20 is not made by means of a sprint. Instead, the holding is made by means of a heel 26 arranged in the form of a projection at the very end of the end portion 23 of the shaft part 22.
  • This projection which in Figure 2 is arranged in the upper portion of the shaft part 22, is intended to co-operate with an enlargement 27 at the very end of the hole 21. This enlargement is directed towards the nail extraction means 28 of the striking part.
  • FIG 3 there is shown a third embodiment of the hammer.
  • This hammer in all essentials corresponds to the hammer according to Figure 2.
  • the holding of the shaft part in the striking part is made by means of two heels 30, 31 , arranged as diametrically opposite projections on the end portion 23 of the shaft part 22.
  • Each of these heels engages an enlargement 32,33 of the hole 21 in the striking part 20, one enlargement being made on each side of the longitudinal center line L of the shaft part.
  • these ones may be connected with each other to one single projection which is an integral part of the shaft and extends round the same.
  • the two enlargements 32,33 may be united with each other to one single enlargement which accordingly extends round the hole 21.
  • FIG. 4 a fourth embodiment of the hammer.
  • This hammer has a striking part 40 which is provided with a projection 41, preferably made in one piece with the striking part and inserted into a recess 42 in the one end portion 44 of the shaft part
  • the outer lower part 45 of the end portion 44 is in contact with the inner lower part of the projection 41 on the lower side of the longitudinal center line L of the shaft, while the inner upper part 46 of the end portion 44 is in contact with the outer upper part of the projection 41 of the striking part 40 on the upper side of the longitudinal center line L of the shaft. Due to that fact there are created firm supports which prevent the wrench of the shaft part in relation to the striking part in the nail extraction plane, whereby also this hammer gets good nail extraction qualities.
  • a strenghtening ring 47 is arranged on the outer part of the end portion 44.
  • the shaft part 43 is held on the striking part 40 by a security pin 48, preferably made of metal and embedded in rubber.
  • an absorbing material is arranged in the space 49 between the shaft part and the striking part. Due to that fact the shocks are absorbed when striking with the hammer, when the striking part 40 moves in relation to the shaft part 43 in the striking plane in a counterwise direction in Figure 4.
  • FIG. 5 a fifth embodiment of the hammer.
  • This hammer has great similarities with the hammer according to Figure 1. The only essential difference is that the fore projection 17 of the end portion 13 of the shaft part 12 in Figure 1 has been exchanged to a transverse pin 50 with a round cross section, which is in a simultaneous engagement with the fore part of the end portion 51 and with the inner part of the recess 52 on the upper side of the longitudinal center line L of the shaft part 53.
  • FIG 6 the sixth embodiment of a hammer made according to the invention.
  • This hammer has certain similarities with the hammer shown in Figure 1 and Figure 5.
  • the striking part 60 is provided with a recess 61 in which the end portion 62 of the shaft part is inserted.
  • the rear part of the end portion 62 is also as previously provided with a projection 64 which during nail extraction is intended to be in a direct contact with the wall of the recess 61 on the lower side of the londitudinal center line L of the shaft part 63.
  • the thing that principally differs this hammer from the two previously ones is that the locking pin 65 is moved further towards the end of the end portion and also functions as a contact part when extracting nails.
  • the pin 65 which is preferably made of massive steel and is arranged at the fore part of the end portion 62 and essentially at the longitudinal center line L of the shaft part 63.
  • the shaft part 63 and the striking part 62 have contact points, which are placed at a distance from each other and which result in that there arises an unresilient, incompressible contact between the shaft part and the striking part when extracting nails.
  • the hole 66 of the end portion 62 of the shaft part 63 is oval in the direction essentially vertical to the longitudinal center line L of the shaft part 63.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Percussive Tools And Related Accessories (AREA)

Abstract

This invention relates to a shock-absorbing striking tool, for instance a hammer, comprising a striking part and a shaft part, the one end portion of the shaft part being fastened to the striking part and a shock-absorbing material being inserted between the striking part and the shaft part. According to the invention the striking tool is designed in that way that when striking there is a turning of the shaft part (12; 22; 43; 53; 63) in relation to the striking part (10; 20; 40; 54; 60) essentially in the striking plane of the tool, and there is an essentially incompressible contact between the striking part and the shaft part intended to exist when extracting nails by means of the striking tool.

Description

Shock-absorbed Striking Tool
This invention relates to a shock-absorbed
striking tool, for instance a hammer, comprising a striking part and a shaft part, the one end portion of the shaft part being fastened to the striking part, and a shock-absorbing material being inserted between the striking part and the shaft part.
Usual hammers being in the market today as a rule have a rigid connection between the striking part and the shaft part. This fact gives good nail extraction and striking qualities for the hammer. An important drawback of the known hammers is that when striking the shocks are directly passed on to the hand and the arm. Thus, when using known hammers during a longer time vibration damages may arise in the user.
By the American patent 4085 784, however, a hammer is previously known, in which a shock-absorbing layer is arranged between the striking part and the shaft part. This layer is reduced in thickness in the direction backwards and comes to an end at the rear portion of the striking part so that the rearmost portion of the striking part is in a direct contact with the shaft part. Since in addition to that hard inserts of metal are inserted between the fore portion of the shaft part and the striking part and accordingly fills out the space therebetween, the shock-absorption will be very bad.
There are also other striking tools which are provided with a shock-absorbing layer between the striking part and the shaft part. This shock-absorbing layer extends along the extension of the whole
striking part on the shaft part. Due to that fact the contact will be bad between the striking part and the shaft part, which leads to bad nail extraction
qualities of a hammer built up according to this known way.
This invention relates to elminate the problems with known technique and offer a striking tool, for instance a hammer, which is shock-absorbed but still has good nail extraction qualities.
This has been made possible by a striking tool of the kind mentioned by way of introduction which is characterized in that it is so designed that when striking there is a wrench of the shaft part in
relation to the striking part essentially in the striking plane of the tool, and that an essentially incompressible contact between the striking part and the shaft part is intended to exist when extracting nails by means of the striking tool. Due to that fact the striking tool will be effectively shock-absorbed but can still offer good nail extraction qualities.
The remaining advantages with the striking tool according to the invention will appear more closely below when describing a number of preferred embodiments of hammers. In this connection is referred to the drawings where Figures 1-6 show longitudinal cross sections of six different embodiments of the striking tool according to the invention in the form of a hammer.
Referring to Figure 1 is shown there a first embodiment of the striking tool according to the invention in the form of a hammer. This one in the known way has a striking part 10, provided with nail extraction means 11, and a shaft part 12 the one end portion 13 of which is fastened to a recess 14 in the striking part 10 by means of a rubber-suspended
security pin 15 which extends transversely through the shaft part and the striking part. The recess 14 almost extends through the striking part and has essentially the same cross section straightly through. However, the recess 14 has an enlargement 16 at the very bottom of the recess which enlargement is arranged in the direction towards the nail extraction means 11 and is intended to be in contact with a projection 17 on the outer part of the end portion 13 of the striking part, when the hammer is in a resting position or is used for nail extraction.
The enlargement 16 and the projection 17 are placed on that side of the longitudinal center line L of the shaft part 12 which is directed to the nail extraction means 11 and has bevelled edge portions being in contact with each other and forming a locking function, whereby the load and by that the wear of the security pin 15 is reduced.
The shaft part 12 has a projection 18 at the rear part of the end portion 13 on the other side of the longitudinal center line L of the shaft part. This projection is intended to rest against the outer portion of the recess 14 so that there is firm support also at the outer portion of the recess when
extracting nails. The contact areas between the end portion of the shaft part and the wall of the recess of the striking part are accordingly placed in such a way that a line drawn between the fore and the rear
contact area extends obliquely over the end portion.
The end portion 13 of the shaft part 12 has such a form that it does not fill out the recess 14. In these spaces between the striking part and the shaft part there is an absorbing material 19 made of rubber, plastic or another suitable material inserted. Due to the mentioned design of the firm supports, the shaft part 12 will during strikes by means of the hammer wrench in the striking plane in relation to the
striking part, i.e. in a counter-clockwise diretion in relation to the pin 15 in Figure 1. Due to the
arrangement of the absorbing material 19, this wrench is made against the action of this material. Hereby is achieved that the shocks when striking are absorbed so that the hammer becomes lenient to use. Moreover, the good nail extraction qualities can be maintained since the contact between the shaft part and the striking part is incompressible.
In Figure 2 there is shown a second embodiment of the hammer according to the invention. This hammer in contrast to the hammer according to Figure 1 has a striking part 20 provided with a hole 21 going through the striking part, in which the one end portion 23 of the shaft part 22 is inserted. The end portion in similarity with the embodiment according to Figure 1 has a fore projection 24 on the one side of the
longitudinal center line L of the shaft part and a rear projection 25 on the other side of the center line L, which projections are intended to be in contact with the inner wall of the hole 21, whereby firm supports are created for nail extraction by means of the hammer.
As is apparent from the drawing, the holding of the shaft part 22 in the striking part 20 is not made by means of a sprint. Instead, the holding is made by means of a heel 26 arranged in the form of a projection at the very end of the end portion 23 of the shaft part 22. This projection, which in Figure 2 is arranged in the upper portion of the shaft part 22, is intended to co-operate with an enlargement 27 at the very end of the hole 21. This enlargement is directed towards the nail extraction means 28 of the striking part.
In similarity with the former embodiment, the end portion 23 of the shaft part 22 does not fill out the hole 21, whereby a space 29 is created between the shaft part and the striking part. This space 29 creates a possibility for a wrench of the shaft part in
relation to the striking part in the striking plane of the hammer in a couter-clockwise direction in Figure 2 and is filled out with an absorbing material like foamrubber, rubber, plastic or the like.
In Figure 3 there is shown a third embodiment of the hammer. This hammer in all essentials corresponds to the hammer according to Figure 2. However, there is a difference and that is that the holding of the shaft part in the striking part is made by means of two heels 30, 31 , arranged as diametrically opposite projections on the end portion 23 of the shaft part 22. Each of these heels engages an enlargement 32,33 of the hole 21 in the striking part 20, one enlargement being made on each side of the longitudinal center line L of the shaft part. Instead of having two projections 30, 31, these ones may be connected with each other to one single projection which is an integral part of the shaft and extends round the same. In the same way the two enlargements 32,33 may be united with each other to one single enlargement which accordingly extends round the hole 21.
By making a distance between the outer limitation surface 34 of the heel 31 and the bottom portion 35 of the enlargement 33, there is created a space for a wrench of the shaft part in relation to the striking part in the striking plane of the hammer in a counterclockwise direction in Figure 3. Since this wrench is made against the action of an absorbing material, arranged in the space 36 between the shaft part and the striking part, the shocks are absorbed when striking with the hammer.
In Figure 4 is shown a fourth embodiment of the hammer. This hammer has a striking part 40 which is provided with a projection 41, preferably made in one piece with the striking part and inserted into a recess 42 in the one end portion 44 of the shaft part
43. The outer lower part 45 of the end portion 44 is in contact with the inner lower part of the projection 41 on the lower side of the longitudinal center line L of the shaft, while the inner upper part 46 of the end portion 44 is in contact with the outer upper part of the projection 41 of the striking part 40 on the upper side of the longitudinal center line L of the shaft. Due to that fact there are created firm supports which prevent the wrench of the shaft part in relation to the striking part in the nail extraction plane, whereby also this hammer gets good nail extraction qualities. In order to prevent in nail extraction position that the end portion 44 of the shaft part 43 yields, a strenghtening ring 47 is arranged on the outer part of the end portion 44. The shaft part 43 is held on the striking part 40 by a security pin 48, preferably made of metal and embedded in rubber.
In the same way as in previous embodiments an absorbing material is arranged in the space 49 between the shaft part and the striking part. Due to that fact the shocks are absorbed when striking with the hammer, when the striking part 40 moves in relation to the shaft part 43 in the striking plane in a counterwise direction in Figure 4.
In Figure 5 is shown a fifth embodiment of the hammer. This hammer has great similarities with the hammer according to Figure 1. The only essential difference is that the fore projection 17 of the end portion 13 of the shaft part 12 in Figure 1 has been exchanged to a transverse pin 50 with a round cross section, which is in a simultaneous engagement with the fore part of the end portion 51 and with the inner part of the recess 52 on the upper side of the longitudinal center line L of the shaft part 53. Thus, when
extracting nails the force is indirectly transmitted from the fore part of the end portion 51 to the
striking part 54 via the pin 50. Due to the fact that the pin 50 is arranged in recesses 55, 56, made in both the shaft part and the striking part there arises a locking function which reduces the loads on the holding pin 57 during nail extraction.
In Figure 6 is shown the sixth embodiment of a hammer made according to the invention. This hammer has certain similarities with the hammer shown in Figure 1 and Figure 5. Thus, the striking part 60 is provided with a recess 61 in which the end portion 62 of the shaft part is inserted. The rear part of the end portion 62 is also as previously provided with a projection 64 which during nail extraction is intended to be in a direct contact with the wall of the recess 61 on the lower side of the londitudinal center line L of the shaft part 63.
The thing that principally differs this hammer from the two previously ones is that the locking pin 65 is moved further towards the end of the end portion and also functions as a contact part when extracting nails. The pin 65 which is preferably made of massive steel and is arranged at the fore part of the end portion 62 and essentially at the longitudinal center line L of the shaft part 63. Thus, as in the other embodiments the shaft part 63 and the striking part 62 have contact points, which are placed at a distance from each other and which result in that there arises an unresilient, incompressible contact between the shaft part and the striking part when extracting nails.
In order to allow that the shaft part 63 can wrench in relation to the striking part 60 in the striking plane of the hammer when striking nails, the hole 66 of the end portion 62 of the shaft part 63 is oval in the direction essentially vertical to the longitudinal center line L of the shaft part 63. By also providing the space 67 between the shaft part and the striking part with an absorbing material, the movement of the shaft part in relation to the striking part becomes damped.
The invention is, of course, not limited to the mentioned embodiments but can be modified within the scope of the following claims. Thus, the invention idea can be applied on other striking tools than hammers.
The striking part is preferably made of a suitable metallic material for instance steel, while the shaft part is preferably made of steel, plastic and/or wood.
The essentially incompressible contact between the striking part and the shaft part is achieved by the fact that the portions of the striking part and the shaft part which are necessary for the contact comprise metal, hard plastic, wood, composite material or combinations of these ones.

Claims

Claims
1. A shock-absorbed striking tool, for instance a hammer, comprising a striking part and a shaft part, the one end portion of the shaft part being fastened to the striking part, and a shock-absorbing material being inserted between the striking part and the shaft part, c h a r a c t e r i z e d in that the striking tool is so designed that when striking there is a wrench of the shaft part (12;22;43; 53; 63) in relation to the striking part (10;20;40;54;60) essentially i the striking plane of the tool, and that an essentially incompressible contact between the striking part and the shaft part is intended to exist when extracting nails by means of the striking tool.
2. A striking tool according to claim 1,
c h a r a c t e r i z e d in that the incompressible contact between the striking part (10;20;40;54; 60) and the shaft part (12;22;43; 53; 63) exists at the fore part of the end portion (13;23;44; 51; 62) of the shaft part on the one side of the longitudinal center line L of the shaft part and at the rear part of the end portion of the shaft part on the other side of the longitudinal center line L of the shaft part.
3. A striking tool according to claim 2, a recess or a hole being arranged in the striking part for reception of the end portion of the shaft part,
c h a r a c t e r i z e d in that the incompressible contact is achieved by the fact that the end portion (13;23;51) has at least one projection (17,18;24,25;50) being in contact with the wall of the recess (14; 52) or the hole (21), and that there is a space between the end portion (13; 23; 51) and the wall of the recess
(14; 52) or the hole (21) so that the shaft part
(12;22; 53) when striking can be wrenched in relation to the striking part (10;20; 54) in the striking plane in the counter-clockwise direction, i.e., in the direction the fore part of the end portion (13;23;51) moves.
4. A striking tool according to claim 3, the striking part having nail extraction means (11,28), c h a r a c t e r i z e d in that the fore part of the end portion (13;23) has a projection (17;24) which rests against the wall of the recess (14) or the hole (21) on that side of the longitudinal center line L of the shaft part (12;22) being directed towards the nail extraction means (11,28), and that the rear part of the end portion has a projection (18;25) which rests against the inner wall of the recess (14) or the hole (21) on the other side of the center line L.
5. A striking tool according to claim 4,
c h a r a c t e r i z e d in that the holding of the shaft part (12) is made by means of a locking pin (15) which extends transversally through the striking part (10) and the shaft part (12), and that the projection (17) has a bevelled surface which is in contact with a corresponding bevelled surface in an enlargement (16) in the recess (14), the contact between the bevelled surfaces reducing the load of the locking pin (15) during the nail extraction.
6. A striking tool according to claim 4,
ch a r a c t e r i z ed in that the shaft part (22) is fastened in a hole (21) in the striking part (20) by means of at least one heel (26;30;31) which is arranged at the fore part of the end portion (23) of the shaft part and engages a corresponding enlargement (27;32,33) in the hole (21).
7. A striking tool according to claim 6,
ch ar a c t e r i z e d in that the fore part of the end portion (23) of the shaft part (22) has two heels (30,31), one on each side of the longitudinal center line L of the shaft part, which engage corresponding enlargements (32,33) of the hole of the striking part (20), there being a distance between the outer
limitation surface (34) of the projection (31) and the bottom portion (35) of the enlargement (33).
8. A striking tool according to claim 3, the striking part having nail extraction means and a recess for reception of the shaft part, c h a r a c t e r iz e d in that the contact between the fore part of the end portion (51) of the shaft part and the wall of the recess (52) is made via a transverse pin (50) being arranged in recesses (55,56) which are made in both the shaft part and the striking part.
9. A striking tool according to claim 2, the striking part having a nail extraction means,
c h a r a c t e r i z e d in that the striking part (40) comprises a projection (41) which is inserted into a recess (42) of the end portion (44) of the shaft part (43), the inner, upper part (46) of the end portion
(44) being in contact with the outer, upper part of the projection (41) on that side of the longitudinal center line L of the shaft part, being directed towards the nail extraction means, while the outer, lower part (45) of the end portion (44) is in contact with the inner, lower part of the projection (41) on the other side of the center line L.
10. A striking tool according to claim 1, the end portion (62) of the shaft part (63) being inserted into a recess (61) of the striking part (60),
c h a r a c t e r i z e d in that the rear part of the end portion (62) has a projection (64) which rests against the wall of the recess (61) on the lower side of the longitudinal center line L of the shaft part (63), that the shaft part (63) is fastened to the striking part (60) by means of a locking pin (65) going through the striking part and shaft part and being arranged at the fore part of the end portion roughly at the center line L, and that the hole (66) in the shaft part which is penetrated by the locking pin (65) is oval in the direction essentially vertical to the longitudinal center line L of the shaft part (63).
PCT/SE1990/000448 1989-06-21 1990-06-21 Shock absorbed striking tool WO1990015695A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8902256-0 1989-06-21
SE8902256A SE462616B (en) 1989-06-21 1989-06-21 AID PUMP SHIPPING TOOL

Publications (1)

Publication Number Publication Date
WO1990015695A1 true WO1990015695A1 (en) 1990-12-27

Family

ID=20376357

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1990/000448 WO1990015695A1 (en) 1989-06-21 1990-06-21 Shock absorbed striking tool

Country Status (3)

Country Link
AU (1) AU5937690A (en)
SE (1) SE462616B (en)
WO (1) WO1990015695A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1481770A1 (en) * 2003-05-30 2004-12-01 Tai-Her Yang Hammer with resilient swivel pivoted joint
EP1595656A1 (en) * 2004-05-13 2005-11-16 Himmelberger Zeughammerwerk Leonhard Müller & Söhne AG Tool with a shaft
EP2474392A3 (en) * 2011-01-10 2015-05-20 Kheiron Corp. Vibration-damped striking tool

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE505352C2 (en) * 1995-09-11 1997-08-11 Hultafors Ab Shock absorbing hammer
US5992270A (en) * 1996-09-06 1999-11-30 Hultafors Ab Shock absorbing hammer
US6158307A (en) * 1999-05-05 2000-12-12 General Housewares Corporation Shock absorption system for a striking tool
DK2380706T3 (en) * 2010-04-24 2013-02-18 Gedore Werkzeugfabrik Gmbh & Co Kg Hammer, especially hammer, and method of making such a hammer

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1435851A (en) * 1920-04-14 1922-11-14 Isham Harry Stevens Rubberset cushioned implement handle and insert thimble
US4085784A (en) * 1975-06-26 1978-04-25 Fish Herbert L Impact tool and handle assembly therefor
SE439447B (en) * 1980-03-17 1985-06-17 Nissebo Hb Anti-noise sledgehammer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1435851A (en) * 1920-04-14 1922-11-14 Isham Harry Stevens Rubberset cushioned implement handle and insert thimble
US4085784A (en) * 1975-06-26 1978-04-25 Fish Herbert L Impact tool and handle assembly therefor
SE439447B (en) * 1980-03-17 1985-06-17 Nissebo Hb Anti-noise sledgehammer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1481770A1 (en) * 2003-05-30 2004-12-01 Tai-Her Yang Hammer with resilient swivel pivoted joint
EP1595656A1 (en) * 2004-05-13 2005-11-16 Himmelberger Zeughammerwerk Leonhard Müller & Söhne AG Tool with a shaft
EP2474392A3 (en) * 2011-01-10 2015-05-20 Kheiron Corp. Vibration-damped striking tool

Also Published As

Publication number Publication date
SE8902256D0 (en) 1989-06-21
SE8902256A (en) 1990-07-30
AU5937690A (en) 1991-01-08
SE462616B (en) 1990-07-30

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