EP0207786A2 - Schlagwerkzeug mit biegsamem Stiel - Google Patents

Schlagwerkzeug mit biegsamem Stiel Download PDF

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Publication number
EP0207786A2
EP0207786A2 EP86305122A EP86305122A EP0207786A2 EP 0207786 A2 EP0207786 A2 EP 0207786A2 EP 86305122 A EP86305122 A EP 86305122A EP 86305122 A EP86305122 A EP 86305122A EP 0207786 A2 EP0207786 A2 EP 0207786A2
Authority
EP
European Patent Office
Prior art keywords
handle
head
shaped
handle grip
leg
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Withdrawn
Application number
EP86305122A
Other languages
English (en)
French (fr)
Other versions
EP0207786A3 (de
Inventor
Tai-Her Yang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0207786A2 publication Critical patent/EP0207786A2/de
Publication of EP0207786A3 publication Critical patent/EP0207786A3/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G3/00—Attaching handles to the implements
    • B25G3/02—Socket, tang, or like fixings
    • B25G3/12—Locking and securing devices
    • B25G3/28—Locking and securing devices comprising wedges, keys, or like expanding means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G1/00—Handle constructions
    • B25G1/01—Shock-absorbing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G3/00—Attaching handles to the implements
    • B25G3/02—Socket, tang, or like fixings
    • B25G3/12—Locking and securing devices

Definitions

  • the inventor has collected and analyzed himself the following overseas patented information concerning the hammering tool:
  • this is made of a plate spring, one end of which is connected with a hammering block and its other end, a grip handle, however said plate spring is a rectangular flat board, so under the shocks resulted from the impacts, the hammering block will slide back toward the grip handle; further after used a certain time, said plate spring will, due to its insufficient stiffness, be deformed, thus making its practical functions become poor.
  • its feature lies that its frame- shaped plate spring is implanted in the grip handle of the hammering tool and one end of said spring is joined a hammering block.
  • This design may provide said hammering tool with same flexibility, however its structure tends to more complicate, so its utilization is more difficult and also uneconomic.
  • a striking tool comprises a handle and a tool head, the handle including a handle grip and two legs each made from a resilient material, means for securing each leg in the tool head and at least one leg including restraining means disposed adjacent the head for restraining displacement of the head towards the handle grip.
  • each leg of the handle includes a restraining means for example an arc-shaped part protruding externally of the leg or legs to restrain the hammering block from sliding towards the grip handle during use.
  • each leg is a plate spring having the same or different cross-sectional shape which, when of non-planar form, are disposed mutually opposite or facing each other according to the flexibility of handle required.
  • the present invention is to provide the structure of a hammering tool with a flexible handle, its main feature lies in that a means to avoid the hammering block sliding back is provided on the end of the plate spring that joins the hammering block, and the cross section of said plate spring has different designs to select its flexible extent.
  • the structure of the hammering tool with flexible handle according to the present invention differs with the above-said ones in a way that its practical functions are much superior.
  • the structural design of this invention is described in detail as follows in cc nction with the example in the utilization of the attached drawings.
  • this invention mainly comprises a hammering block(l), its support handle is in a U-shaped plate form, two plate springs(2) are installed parallel or approximatelly parallel with a wider distance between them and at a place close to the and of said handle, the end of said two springs(2) has a small outwardly bent section respectively to lock up and prevent the hammering block from slip off thereon, and a griphand(3), of which, said hammering block(l) has a gaint hole(11) the end of which close to said handle is larger and has a slight slope to accommodate the end of said two plate springs (2), a wedge block(4) to be closely wedged between said two plate springs(2) to make them strech toward the respective two sides, thus firmly joint said hammering block(l).
  • two plate springs(2) of said U-shaped support handle are used to join said hammering block(l) and grip handle(3), said two plate spring (2) have the expected proper flexibility and supposed stiffness to avoid deformations produced under the applied forces during uses, so they are not in conventional simple flat plate form, but their cross see- tional area in their middle section are in a variety of different designs as shown in Fig. 5A - Fig. 5F, of which Fig. A the cross section of said two parallel plate springs(2) are in a mutually opposite U-shaped design; of as shown in Fig. B arc in a mutually facing U-shaped design; or as shown in Fig. C, are in a mutually opposite are design; or as shown in Fig.
  • a bent arc part(22) design is axially provided on their mutually facing inner sides respectively; or as shown in Fig. F, at the central part of said two parallel plate springs(2), a bent arc part(23) design is axially provided on their mutually opposite outer sides respectively.
  • the above said cross sectional structural design on the middle section of said two parallel plate spring(2) has the expected flexibility and also provides the supposed stiffness, hereby increasing its novel and practical functions.
  • said hand grip(104) of the example of the utilization in this item is made of a common plastic material, the state that it covers said U-shaped flexible.handle(102) is in a manner that during extrusion forming, it may directly fill and cover said closing and bent ends of U-shaped flexible handle(102) to a proper length.
  • a further design of this invention is such as the third example of the utilization as shown Fig. 9 comprising hammer block(101), U-shaped flexible handle(102), 'amp post(105) and hand grip(106), of which said hammer block(101) has two through holes(112) which are provided transversely, the open ends of said U-shaped handle (102) are in an upright state, and the front end of said hammer block(101) passes through said two through holes (112) and then extends from the rear side of said holes to the bent part of said U-sahped flexible handle(102) and overlaps over the front end of said two through holes(112), then is fixed by a strong thrust ring or nut (122) and washer(121) on the part of said U-sahped flexible handle(102) that stretches out of the rear end of said hammer block(101), thus achieving the fixation and join of said hammer block(101) and U-shaped flexible handle as shown in Fig. 10.
  • two lengthway round slots (151) in opposite 180 are provided on the rim of the clamp post(105) of the example of the utilization in this item, the diameter of the cross section of said round slots(151) is same as of that of the cross section of said U-shaped flexible handle(102), and after said U-shaped flexible hand(102) penetrates through and stays in said round slots(151), it forms a complete circle together with said clamp post(105), further threads are provided in a proper length on the post face of said clamp post(105) and the outer post face of said open ends of said U-shaped flexible handle(102) for the inner threads of the precast formed hand grip (106) to directly screw on, match and fix said clamp post(105) and said open ends of said U-shaped flexible handle(102).
  • a further 4th example of the utilization according to this invention can be composed of said hamper block(101), U-shaped flexible handle(102), sleeve post(107) and rear cover(108), of which, said hammer block(101) and U-shaped flexible handle(102) is joined and locked in a same manner as of the third example of utilization, the open ends of said U-shaped flexible handle(102) penetrates through said column-shaped sleeve post(107), and their protruding ends is coupled and fixed by a nut(122), the outer diameter of a proper length of the tail end of said sleeve post(107) is smaller, and outer threads are provided on said length of the tail end of said sleeve post to screw and match the rear cover (108), thus tightly packing and covering the nut(122) on the tail end of the sleeve post to avoid any free slide phenomenon taken place between said sleeve post (107) and U-shaped flexible handle(102).
  • the hammer tool structures of the above four examples of utilization all use said U-shaped flexible handle as the part of the arm of force for operating said hammer block, since the flexibility and proper rigid strength of said U-shaped flexible handle makes the hammer tool of this invention can make timely flexible deformations during operations to eliminate the counter-vibrations as shown in Fig. 13, this examplifies its unique functions.
  • the hammering tool with flexible handle is simple in structure and low in manufacture costs and also has the function to prevent its hammering block from sliding back while further its variety of different cross sectional structural designs on the middle section of said plate spring achieve the object to increase the stiffness.
  • a hammering tool with main improvements comprising a hammering block(l), its support handle is in a U-shaped plate form, two plate springs(2) are provided parallel, or approximately parallel with a wider distance away from the handle end, the end of said two plate springs(2) has a small outwardly bent section respectively to seize and step the hammering block, thus preventing said hammering block from slip- ing off therein, and a grip handle(3), of which, said hammering block(l) has a joint hole(ll) with a slight slope and a larger end close to the handle respectively to accommodate the end of said two plate springs(2), a wedge block(4) to be closely wedged between the ends of said two plate springs, thus making them stretched toward both sides and hereby firmly joined to said hammering block(l).
  • This other U-shaped end of said two plate springs(2) are implanted in said grip handle (3), at a proper position on its end joined to said hammering block(l), i.e. at the bottom after said hammering block(l) is positioned, an outwardly protruding arc part(21) is provided respectively, when and after said hammering block(l) is joined, its bottom is just seized and stepped on top of said protruding arc part (21)
  • a further structural design of the hammer tool with a flexible handle comprising.
  • the hammer tool having a flexible handle as defined in the above feature 2, wherein its constituent structure comprises:

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
EP86305122A 1985-07-01 1986-07-01 Schlagwerkzeug mit biegsamem Stiel Withdrawn EP0207786A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB858516631A GB8516631D0 (en) 1985-07-01 1985-07-01 Hammering tool
GB8516631 1985-07-01

Publications (2)

Publication Number Publication Date
EP0207786A2 true EP0207786A2 (de) 1987-01-07
EP0207786A3 EP0207786A3 (de) 1987-06-10

Family

ID=10581617

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86305122A Withdrawn EP0207786A3 (de) 1985-07-01 1986-07-01 Schlagwerkzeug mit biegsamem Stiel

Country Status (2)

Country Link
EP (1) EP0207786A3 (de)
GB (1) GB8516631D0 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2708505A1 (fr) * 1994-01-20 1995-02-10 Marmillod Andre Marteau à peinture.
EP2517837A3 (de) * 2011-04-25 2012-11-28 Walter Meier (Manufacturing), Inc. Hammerkopf- und -griffanordnung

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1177472A (en) * 1915-09-01 1916-03-28 Samuel B Bartlett Ax.
GB163718A (en) * 1921-09-05 1922-06-29 Jean Mourrellon Improvements in and relating to handles for tools and the like
US1449677A (en) * 1921-05-02 1923-03-27 Howard B Jones Wire-handled hammer
US2809684A (en) * 1955-11-18 1957-10-15 Ernest C Lyon Whip shaft hammer having turnable head
DE1114353B (de) * 1957-09-07 1961-09-28 Johann Riehs Auswechselbarer Stiel fuer Arbeitsgeraete
EP0005635A1 (de) * 1978-05-19 1979-11-28 UPHAM and BENDT N.V. Elastischer Griff
GB2053771A (en) * 1979-07-11 1981-02-11 Whiteford C L Handle for percussive tools with vibration damping means
GB2077175A (en) * 1980-06-09 1981-12-16 Creative Tools Flexible handle for percussive tool eg a hammer
US4404708A (en) * 1978-08-07 1983-09-20 Modern Inventions (Proprietary) Limited Handle

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE888439A (fr) * 1981-04-15 1981-07-31 Remond Jean Manche d'un instrument,

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1177472A (en) * 1915-09-01 1916-03-28 Samuel B Bartlett Ax.
US1449677A (en) * 1921-05-02 1923-03-27 Howard B Jones Wire-handled hammer
GB163718A (en) * 1921-09-05 1922-06-29 Jean Mourrellon Improvements in and relating to handles for tools and the like
US2809684A (en) * 1955-11-18 1957-10-15 Ernest C Lyon Whip shaft hammer having turnable head
DE1114353B (de) * 1957-09-07 1961-09-28 Johann Riehs Auswechselbarer Stiel fuer Arbeitsgeraete
EP0005635A1 (de) * 1978-05-19 1979-11-28 UPHAM and BENDT N.V. Elastischer Griff
US4404708A (en) * 1978-08-07 1983-09-20 Modern Inventions (Proprietary) Limited Handle
GB2053771A (en) * 1979-07-11 1981-02-11 Whiteford C L Handle for percussive tools with vibration damping means
GB2077175A (en) * 1980-06-09 1981-12-16 Creative Tools Flexible handle for percussive tool eg a hammer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2708505A1 (fr) * 1994-01-20 1995-02-10 Marmillod Andre Marteau à peinture.
EP2517837A3 (de) * 2011-04-25 2012-11-28 Walter Meier (Manufacturing), Inc. Hammerkopf- und -griffanordnung
US8359949B2 (en) 2011-04-25 2013-01-29 Walter Meier (Manufacturing) Inc. Hammer head and handle assembly
EP2749379A1 (de) * 2011-04-25 2014-07-02 JPW Industries Inc. Hammer und Handwerkzeugsherstellungsverfahren

Also Published As

Publication number Publication date
GB8516631D0 (en) 1985-08-07
EP0207786A3 (de) 1987-06-10

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