EP0088268B1 - Hammer, the handle of which is fixed to the hammer head by an intermediate socket - Google Patents
Hammer, the handle of which is fixed to the hammer head by an intermediate socket Download PDFInfo
- Publication number
- EP0088268B1 EP0088268B1 EP83101596A EP83101596A EP0088268B1 EP 0088268 B1 EP0088268 B1 EP 0088268B1 EP 83101596 A EP83101596 A EP 83101596A EP 83101596 A EP83101596 A EP 83101596A EP 0088268 B1 EP0088268 B1 EP 0088268B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hammer
- handle
- section
- socket
- hammer head
- 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
Images
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
-
- 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
-
- 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
- B25G3/00—Attaching handles to the implements
- B25G3/34—Attaching handles to the implements by pressing the handle on the implements; using cement or molten metal, e.g. casting, moulding, by welding or the like
Definitions
- the invention relates to a hammer, the handle of which is fastened with the interposition of a sleeve in the hammer head.
- the hammer head is provided with an oval opening, which completely penetrates the upper end of the hammer handle equipped with a protective sleeve.
- the opening in the hammer head is adapted to the shape of the handle end.
- a wedge preferably a ring wedge, is driven into the end of the handle.
- the hammer head can still be secured with a cross pin that penetrates both the hammer head and the handle end.
- This inwardly tapering shape of the bearing eye makes it difficult to drive in the stem end because the middle region of the bearing eye, which forms the narrowest passage, must be passed through by the stem end. If the handle end is driven in too violently, it will be damaged or even broken off, provided the protective sleeve does not enclose the handle end tightly enough and forms a secure half.
- the invention has for its object not only to simplify the fastening of the hammer handle in the hammer head of the generic type of hammer, but also to improve it in such a way that a reliable fastening between hammer handle and hammer head is achieved.
- the sleeve is composed of a section with a round cross section and a section with an oval cross section, the handle end of the hammer handle fitted with the sleeve being such that: a bore of the hammer head can be driven in that the section of the sleeve with the round cross-section lies completely in the bore of the hammer head and is held there in a press fit.
- the complex widening of the bearing eye and the difficult driving in of the end of the handle is avoided in the inventive design.
- the sleeve can consist of a one-piece metal body, the section with the oval cross section being approximately twice as long as the section with the round cross section. This ensures that the hammer handle is not only held securely in the hammer head, but that the hammer handle is protected from damage when the hammer blows below the hammer head.
- the transition point between the section with the round cross section and the section with the oval cross section can be designed as a truncated cone. This simplifies the manufacture of the one-piece metal sleeve.
- the handle end of the hammer handle can be positively received in the sleeve, the head of the handle end protruding from the cylindrical part of the sleeve. This has the advantage that the free area of the end of the handle can widen when a wedge is driven in.
- the handle end of the hammer handle can be driven with the cylindrical part of the sleeve into a cylindrical bearing eye of the hammer head.
- the head of the end of the handle appropriately receives a ring wedge.
- the stem attachment is shown.
- the hammer identified by the reference number 10 consists of a hammer head 11 made of steel, a wooden handle 12 and a steel sleeve 13.
- the hammer head 11 is provided with a continuous bore 14 which serves as a cylindrical bearing eye .
- the steel sleeve 13 is composed of a section 15 with a round cross section and a section 16 with an oval cross section.
- the transition point between the section 15 with the round cross section and the section 16 with the oval cross section is designed as a truncated cone 17.
- Section 16 is approximately twice as long as section 15.
- the handle end 18 of the handle 12 is equipped with the steel sleeve 13 in such a way that the head of the handle end 18 protrudes from the cylindrical section 15 of the steel sleeve 13.
- the shape of the handle end 18 is precisely adapted to the interior of the steel sleeve 13.
- the cylindrical section 15 is driven completely into the bore 14. As can be seen from FIG. 1, the cylindrical section 15 of the sleeve 13 extends over approximately two thirds of the interior of the bore 14. The remaining part of the bore 14 is filled by the handle end 15. After driving in the handle end 18, a ring wedge 19 is driven into its head, which spreads the upper part of the handle end 18 and ensures a secure hold of the handle 12 in the hammer head 11.
- An additional securing of the handle 12 in the hammer head 11 can be effected in that the sections 15 and 16 of the steel sleeve 13 are each provided with a dowel pin 20 which crosses the hammer head 11 or the handle end 18.
- the illustrated embodiments are only examples of realizations of the invention. This is not limited to this. Various modifications and applications are still possible within the scope of the invention.
- the inner surfaces of the steel sleeve 13 could be equipped with barb-shaped projections which claw into the lateral surfaces of the stem 12 when the stem end 18 is introduced.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
- Portable Nailing Machines And Staplers (AREA)
Abstract
Description
Die Erfindung bezieht sich auf einen Hammer, dessen Stiel unter Zwischenschaltung einer Hülse im Hammerkopf befestigt ist. Bei bekannten Ausführungsformen dieser Art, siehe US-A-15 01 095 ist der Hammerkopf mit einem ovalen Durchbruch versehen, den das obere, mit einer Schutzhülse bestückte Ende des Hammerstieles vollständig durchdringt Der Durchbruch im Hammerkopf ist der Form des Einstielendes angepaßt. Um einen sicheren Sitz des Hammerstieles im Hammerkopf zu erreichen, wird in das Einstielende ein Keil, vorzugsweise ein Ringkeil, eingetrieben. Zusätzlich kann der Hammerkopf noch mit einem Querstift gesichert sein, der sowohl den Hammerkopf als auch das Einstielende durchdringt. Hierdurch wird ein Lösen des Hammerkopfes vom Hammerstiel vermieden, sofern bei einem Schrumpfen des aus Holz gefertigten Stiels der Hammerkopf nur noch locker am Stielende sitzt. Die bisherige Stielbefestigung ist verhältnismäßig aufwendig, weil das Versehen des Hammerkopfes mit einem ovalen, dem Einstielende angepaßten Lager schwierig ist. Der Hammerkopf muß zunächst durchbohrt werden. Danach wird die runde Boh- - rung zu einer ovalen Aufnahme für das Stielende ausgefräst, wobei das so geschaffene Lagerauge sich sowohl in der Eintrittsöffnung als auch in der Austrittsöffnung keilartig aufweiten muß, um einen festen Sitz des Hammerstiels im Hammerkopf zu gewährleisten. Durch diese sich nach innen verjüngende Form des Lagerauges wird das Eintreiben des Einstielendes erschwert, weil der mittlere Bereich des Lagerauges, der den engsten Durchlaß bildet, vom Einstiellende passiert werden muß. Beim zu heftigen Eintreiben des Stielendes wird dieses beschädigt oder sogar abgebrochen, sofern die Schutzhülse das Einstielende nicht fest genug umschließt und einen sicheren Half bildet.The invention relates to a hammer, the handle of which is fastened with the interposition of a sleeve in the hammer head. In known embodiments of this type, see US-A-15 01 095, the hammer head is provided with an oval opening, which completely penetrates the upper end of the hammer handle equipped with a protective sleeve. The opening in the hammer head is adapted to the shape of the handle end. In order to achieve a secure fit of the hammer handle in the hammer head, a wedge, preferably a ring wedge, is driven into the end of the handle. In addition, the hammer head can still be secured with a cross pin that penetrates both the hammer head and the handle end. This prevents the hammer head from coming loose from the hammer handle, provided that when the handle made of wood shrinks, the hammer head only sits loosely at the end of the handle. The previous handle attachment is relatively complex because it is difficult to provide the hammer head with an oval bearing adapted to the handle end. The hammer head must first be pierced. The round hole is then milled out into an oval receptacle for the handle end, the bearing eye created in this way having to wedge-like widen both in the inlet opening and in the outlet opening in order to ensure a firm fit of the hammer handle in the hammer head. This inwardly tapering shape of the bearing eye makes it difficult to drive in the stem end because the middle region of the bearing eye, which forms the narrowest passage, must be passed through by the stem end. If the handle end is driven in too violently, it will be damaged or even broken off, provided the protective sleeve does not enclose the handle end tightly enough and forms a secure half.
Der Erfindung liegt die Aufgabe zugrunde, die Befestigung des Hammerstiels im Hammerkopf der gattungsgemäßen Hammerart nicht nur zu vereinfachen, sondern auch so zu verbessern, daß eine zuverlässige Befestigung zwischen Hammerstiel und Hammerkopf erzielt wird. Zur Lösung dieser Aufgabe wird erfindungsgemäß vorgeschlagen, daß sich die Hülse aus einem Abschnitt mit rundem Querschnitt und einem Abschnitt mit ovalem Querschnitt zusammensetzt, wobei das mit der Hülse bestückte Stielende des Hammerstieles derart :n eine Bohrung des Hammerkopfes eintreibbar ist, daß der Abschnitt der Hülse mit dem runden Querschnitt vollständig in der Bohrung des Hammerkopfes liegt und dort im Preßsitz gehalten ist. Das aufwendige Aufweiten des Lagerauges und das schwierige Eintreiben des Einstielendes wird bei der erfindungsgemäßen Ausbildung vermieden.The invention has for its object not only to simplify the fastening of the hammer handle in the hammer head of the generic type of hammer, but also to improve it in such a way that a reliable fastening between hammer handle and hammer head is achieved. To achieve this object, it is proposed according to the invention that the sleeve is composed of a section with a round cross section and a section with an oval cross section, the handle end of the hammer handle fitted with the sleeve being such that: a bore of the hammer head can be driven in that the section of the sleeve with the round cross-section lies completely in the bore of the hammer head and is held there in a press fit. The complex widening of the bearing eye and the difficult driving in of the end of the handle is avoided in the inventive design.
Bei einer bevorzugten Ausführungsform der Erfindung kann die Hülse aus einem einstückigen Metallkörper bestehen, wobei der Abschnitt mit dem ovalen Querschnitt etwa doppelt so lang ist wie der Abschnitt mit dem runden Querschnitt. Hierdurch wird erreicht, daß der Hammerstiel nicht nur sicher im Hammerkopf gehalten wird, sondern daß der Hammerstiel bei abgleitenden Hammerschlägen unterhalb des Hammerkopfes vor Beschädigungen geschützt wird.In a preferred embodiment of the invention, the sleeve can consist of a one-piece metal body, the section with the oval cross section being approximately twice as long as the section with the round cross section. This ensures that the hammer handle is not only held securely in the hammer head, but that the hammer handle is protected from damage when the hammer blows below the hammer head.
Nach einem weiteren Merkmal der Erfindung kann die Übergangsstelle zwischen dem Abschnitt mit dem runden Querschnitt und dem Abschnitt mit dem ovalen Querschnitt als Kegelstumpf ausgebildet sein. Hierdurch wird die Fertigung der einstückigen Metallhülse vereinfacht.According to a further feature of the invention, the transition point between the section with the round cross section and the section with the oval cross section can be designed as a truncated cone. This simplifies the manufacture of the one-piece metal sleeve.
Das Einstielende des Hammerstiels kann formschlüssig in der Hülse aufgenommen sein, wobei der Kopf des Einstiellendes aus dem zylindrischen Teil der Hülse herausragt. Das hat den Vorteil, daß sich der freie Bereich des Einstielendes beim Eintreiben eines Keiles aufweiten kann.The handle end of the hammer handle can be positively received in the sleeve, the head of the handle end protruding from the cylindrical part of the sleeve. This has the advantage that the free area of the end of the handle can widen when a wedge is driven in.
Das Einstielende des Hammerstieles kann mit dem zylindrischen Teil der Hülse in ein zylindrisches Lagerauge des Hammerkopfes eintreibbar sein. Der Kopf des Einstiellendes nimmt zweckmäßig einen Ringkeil auf.The handle end of the hammer handle can be driven with the cylindrical part of the sleeve into a cylindrical bearing eye of the hammer head. The head of the end of the handle appropriately receives a ring wedge.
Bei der Stielbefestigungen kann eine zusätzliche Sicherung des Stiels am Hammerkopf durch Spannstifte und/oder Spannhülsen vorgesehen sein.When attaching the handle, additional securing of the handle to the hammer head by means of dowel pins and / or clamping sleeves can be provided.
Auf den Zeichnungen ist der Erfindungsgegenstand in mehreren Ausführungsbeispielen dargestellt. Es zeigen :
- Fig. 1 einen Teilschnitt durch eine erste Stielbefestigung mit einem Hammerkopf, einer Hülse und dem oberen Stielende,
- Fig. 2 eine vergrößerte Seitenansicht der Hülse,
- Fig: 3 einen Schnitt nach der Linite 111-111 der Fig. 2,
- Fig. 4 einen Schnitt nach der Linie IV-IV der Fig. 2.
- 1 is a partial section through a first handle attachment with a hammer head, a sleeve and the upper handle end,
- 2 is an enlarged side view of the sleeve,
- 3 shows a section along the line 111-111 of FIG. 2,
- 4 shows a section along the line IV-IV of FIG. 2nd
In den Figuren 1-4 ist die Stiel befestigung dargestellt. Der mit dem Bezugszeichen 10 gekennzeichnete Hammer besteht aus einem Hammerkopf 11 aus Stahl, einem Holzstiel 12 und einer Stahlhülse 13. Um den Stiel 12 im Hammerkopf 11 befestigen zu können, wird der Hammerkopf 11 mit einer durchgehenden Bohrung 14 versehen, die als zylindrisches Lagerauge dient.In Figures 1-4 the stem attachment is shown. The hammer identified by the
Wie aus der Fig. 2 hervorgeht, setzt sich die Stahlhülse 13 aus einem Abschnitt 15 mit rundem Querschnitt und einem Abschnitt 16 mit ovalem Querschnitt zusammen. Die Übergangsstelle zwischen dem Abschnitt 15 mit dem runden Querschnitt und dem Abschnitt 16 mit dem ovalen Querschnitt ist als Kegelstumpf 17 ausgebildet. Der Abschnitt 16 ist etwa doppelt so lang wie der Abschnitt 15.As can be seen from FIG. 2, the
Das Einstielende 18 des Stieles 12 wird, wie Fig. 1 zeigt, mit der Stahlhülse 13 bestückt und zwar derart, daß der Kopf der Einstielendes 18 aus dem zylindrischen Abschnitt 15 der Stahlhülse 13 herausragt. Das Einstielende 18 ist in seiner Form dem Inneraum der Stahlhülse 13 genau angepaßt.As shown in FIG. 1, the
Der zylindrische Abschnitt 15 wird in die Bohrung 14 ganz eingetrieben. Wie aus der Fig. 1 ersichtlich, erstreckt sich der zylindrische Abschnitt 15 der Hülse 13 etwa über zwei Drittel des Innenraumes der Bohrung 14. Der übrige Teil der Bohrung 14 wird durch das Einstielende 15 ausgefüllt. Nach dem Eintreiben des Einstielendes 18 wird in dessen Kopf ein Ringkeil 19 eingetrieben, der den oberen Teil des Einstielendes 18 spreizt und einen sicheren Halt des Stieles 12 im Hammerkopf 11 gewährleistet.The
Eine zusätzliche Sicherung des Stiels 12 im Hammerkopf 11 kann noch dadurch bewirkt werden, daß die Abschnitte 15 und 16 der Stahlhülse 13 mit je einem Spannstift 20, der den Hammerkopf 11 bzw. das Einstielende 18 quert, versehen werden.An additional securing of the
Wie bereits erwähnt, sind die dargestellten Ausführungsformen nur beispielsweise Verwirklichungen der Erfindung. Diese ist nicht darauf beschränkt. Es sind noch mancherlei Abänderungen und Anwendungen im Rahmen der Erfindung möglich. So könnten die Innenflächen der Stahlhülse 13 mit widerhakenförmigen Vorsprüngen ausgerüstet sein, die sich beim Einbringen des Stielendes 18 in den Mantelflächen des Stieles 12 verkrallen.As already mentioned, the illustrated embodiments are only examples of realizations of the invention. This is not limited to this. Various modifications and applications are still possible within the scope of the invention. For example, the inner surfaces of the
- 10 Hammer10 hammer
- 11 Hammerkopf11 hammer head
- 12 Hammerstiel12 hammer handle
- 13 Stahlhülse13 steel sleeve
- 14 Lagerauge (Bohrung)14 bearing eye (bore)
- 15 Abschnitt mit rundem Querschnitt15 section with round cross section
- 16 Abschnitt mit ovalem Querschnitt16 section with oval cross section
- 17 Kegelstumpf17 truncated cone
- 18 Einstielende18 single-ended
- 19 Ringkeil19 ring wedge
- 20 Spannstift20 dowel pin
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT83101596T ATE47073T1 (en) | 1982-03-10 | 1983-02-19 | A HAMMER WHICH SHAFT IS FIXED IN THE HEAD WITH THE INTERMEDIATION OF A SLEEVE. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3208586 | 1982-03-10 | ||
DE3208586A DE3208586C2 (en) | 1982-03-10 | 1982-03-10 | hammer |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0088268A2 EP0088268A2 (en) | 1983-09-14 |
EP0088268A3 EP0088268A3 (en) | 1985-12-11 |
EP0088268B1 true EP0088268B1 (en) | 1989-10-11 |
Family
ID=6157806
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP83101596A Expired EP0088268B1 (en) | 1982-03-10 | 1983-02-19 | Hammer, the handle of which is fixed to the hammer head by an intermediate socket |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0088268B1 (en) |
AT (1) | ATE47073T1 (en) |
DE (1) | DE3208586C2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202012102464U1 (en) | 2012-07-04 | 2012-08-07 | Josef Luber | hammer |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3913739A1 (en) * | 1989-04-26 | 1990-10-31 | Cdp Handwerkzeug Gmbh & Co Kg | HANDHAMMER |
FR2702175B1 (en) * | 1993-03-05 | 1995-10-27 | Loire Milourd Ets Moulin Blanc | HANDLE PROTECTOR FOR HITTING TOOLS AND MOUNTING METHOD THEREOF. |
DE9414187U1 (en) * | 1994-08-30 | 1995-01-26 | Fa. Hermann Bremer, 42369 Wuppertal | Standardized wooden tool handle with hardened protective sleeve and additional securing device |
US6158307A (en) * | 1999-05-05 | 2000-12-12 | General Housewares Corporation | Shock absorption system for a striking tool |
CN2608242Y (en) * | 2003-02-18 | 2004-03-31 | 罗树森 | Fastly connected axe hammer |
DE202005010158U1 (en) | 2005-06-27 | 2005-09-08 | Erwin Halder Kg | Hammer incorporates a handle seat which in the direction of its circumference is lined with an elastically yielding material |
CN108161842B (en) * | 2018-01-04 | 2023-11-28 | 中国铁路上海局集团有限公司上海动车段 | Multifunctional hammer |
FR3079156B1 (en) * | 2018-03-21 | 2020-02-28 | Mob Mondelin Sas | METHOD FOR MANUFACTURING A STRIKING TOOL |
CN110974344B (en) * | 2020-01-06 | 2022-07-12 | 何福友 | Adjustable orthopedic surgical instrument |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1501095A (en) * | 1923-05-23 | 1924-07-15 | George F Brock | Hammer |
US1687335A (en) * | 1925-05-26 | 1928-10-09 | Jackline Morley Pyson | Tool handle |
CH259188A (en) * | 1947-09-06 | 1949-01-15 | Boesch Paul | Wedge for securing the handle in a tool. |
AT204457B (en) * | 1955-02-18 | 1959-07-25 | Hispano Suiza Sa | Process for the production of pyrotechnic bodies which are solid at service temperature |
US2831202A (en) * | 1955-09-12 | 1958-04-22 | Vaughan & Bushnell Mfg Co | Claw hammer with metallic reenforcing sleeve between the connecting part of the handle and the eye of the head |
DE1246629B (en) * | 1956-09-24 | 1967-08-03 | True Temper Corp | Connection of a tool handle to the tool, in particular to a hammer head |
DE1301779B (en) * | 1966-12-23 | 1969-08-21 | Berg & Co | Hammer or the like with a wooden handle secured by a sleeve |
FR2253608A1 (en) * | 1973-12-06 | 1975-07-04 | Loire Milourd Ets Moulin Blanc | Method of fixing wooden handle to hammer head - involves surrounding split, wedged open handle end with synthetic material |
FR2326951A1 (en) * | 1974-03-01 | 1977-05-06 | Charlet Germain | PERFECTIONED PICKAXE FOR MOUNTAINEERING PICKAXE |
-
1982
- 1982-03-10 DE DE3208586A patent/DE3208586C2/en not_active Expired
-
1983
- 1983-02-19 AT AT83101596T patent/ATE47073T1/en not_active IP Right Cessation
- 1983-02-19 EP EP83101596A patent/EP0088268B1/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202012102464U1 (en) | 2012-07-04 | 2012-08-07 | Josef Luber | hammer |
Also Published As
Publication number | Publication date |
---|---|
ATE47073T1 (en) | 1989-10-15 |
DE3208586A1 (en) | 1983-09-29 |
EP0088268A2 (en) | 1983-09-14 |
DE3208586C2 (en) | 1986-12-11 |
EP0088268A3 (en) | 1985-12-11 |
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