DE921198C - Nut wrench with free wheel ratchet - Google Patents
Nut wrench with free wheel ratchetInfo
- Publication number
- DE921198C DE921198C DET1155D DET0001155D DE921198C DE 921198 C DE921198 C DE 921198C DE T1155 D DET1155 D DE T1155D DE T0001155 D DET0001155 D DE T0001155D DE 921198 C DE921198 C DE 921198C
- Authority
- DE
- Germany
- Prior art keywords
- bearing
- nut
- free wheel
- housing
- nut wrench
- 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
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B13/00—Spanners; Wrenches
- B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
- B25B13/461—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member
- B25B13/462—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member the ratchet parts engaging in a direction radial to the tool operating axis
- B25B13/463—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member the ratchet parts engaging in a direction radial to the tool operating axis a pawl engaging an externally toothed wheel
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mounting Of Bearings Or Others (AREA)
Description
Die Erfindung bezieht sich auf einen Mutternschlüssel mit Freilaufknarre, bei dem das Griffgehäuse auf einer Seite das vollständige Lager für die Schlüsselnuß und auf der anderen Seite noch die Hälfte seines Lagers bildet, während die zugehörige andere Lagerhälfte von einer die feste Lagerhälfte untergreifenden Führungswange übernommen wird. Ist dabei die Drehnuß mit zylindrischen Umfangsflächen im,Schlüsselgehäuse und in seiner Abschlußwange gelagert, so bedingt das eine gewisse Schwäche in den Wandstärken. Für solche Mutternschlüssel kommt es wesentlich darauf an, daß sie im äußeren Durchmesser möglichst klein, und zwar tunlichst nicht oder nur unbedeutend größer sind als einfache Mutternschlüssel ohne Freilauf, weil vielfach die festzuziehenden oder zu lösenden Muttern sehr dicht stehen, wie dies z. B. bei Flanschverbindungen für hohe Drücke zutrifft.The invention relates to a nut wrench with a free-running ratchet, in which the handle housing on one side is the complete bearing for the key nut and on the other side still forms half of his bed, while the associated one the other half of the bearing from a guide cheek that engages under the fixed half of the bearing is taken over. Is the rotating nut with cylindrical circumferential surfaces in the key housing and stored in its end cheek, this causes a certain weakness in the Wall thicknesses. For such wrenches it is essential that they in the outer diameter as small as possible, and if possible not or only insignificantly are larger than simple nut wrenches without a freewheel, because many of them have to be tightened or nuts to be loosened stand very close, as z. B. with flange connections applies to high pressures.
Dieser Bedingung entspricht die Erfindung dadurch, daß das Lager der Drehnuß im Gehäuse nebst Abschlußwange auf beiden Seiten kegelig gestaltet ist. Dadurch wird einmal die Auflagerfläche größer und demgemäß die Lagerung in sich widerstandsfähiger. Die Wandstärken können auf das zulässig kleinste Maß herabgesetzt werden, ohne daß ein iSpringe.n der Nuß oder dies Gehäuses zu befürchten ist. Die auftretenden Kräfte werden auf größere Flächen verteilt. Besonders wichtig ist das Vermeiden scharfer rechtwinkliger Eindrehungen in. der Schlüsselnuß und im Gehäuse, so daß damit auch die Kerbgefahr beseitigt wird. Es ist dadurch möglich, den Durchmesser des Schlüssels in so engen Grenzen zu halten, daß er nicht störend größer ausfällt als bei einem einfachen Mutternschlüssel ohne Freilauf. Dies isst in den Fällen besonders wichtig, wo die M lottern schwer zugänglich sind und für das, Anziehen und Lösen nur ein kleiner Winkel zum Ausschwingen des Griffes zur Verfügung steht.This condition corresponds to the invention in that the camp of Rotating nut in the housing together with the end cheek is conical on both sides. As a result, the bearing surface becomes larger and, accordingly, the storage in itself more resistant. The wall thickness can be reduced to the smallest permissible dimension without worrying about the nut or the casing. the The forces that occur are distributed over larger areas. This is especially important Avoiding sharp right-angled turns in the key nut and in the housing, so that this also eliminates the risk of notches. It is thereby possible to change the diameter to keep the key within such narrow limits that it does not turn out to be larger than with a simple nut wrench without a freewheel. This eats in the cases especially important where mothers are difficult to access and for getting dressed and loosening only a small angle is available for swinging the handle.
Die Zeichnung stellt die Erfindung in einem Ausführungsbeispiel dar.The drawing shows the invention in one embodiment.
Abb. i isst ein Längsschnitt durch den Schlüssel nach Linie i-i in Abb. a; Abb. a isst eine Oberansicht auf den Schlüssel nach Abnahme der Abschlußwange; Abb. 3 zeigt die Drehnuß für sich in Ansicht. Das- Gehäuse b des Mutternschlüssels ist an den Lagerflächen b' für die Drehnuß d kegelig unterschnitten gestaltet. Übereinstimmend damit ist die Drehnuß d an ihrem Umfang bei d' kegelig abgedreht. Die Abschlußwange li ist als Deckplatte gestaltet, die mit den Enden ihrer Schenkel i die Unterschneidungen q desi oberen halben Lagerbundes c' untergreift. Sowohl im Gehäuse b wie auch an der Nuß d sind scharfe rechtwinklige Eindrehungen, die Kerbstellen bilden, vermieden.Fig. I is a longitudinal section through the key along line ii in Fig. A; Fig. A is a top view of the key after removing the end cheek; Fig. 3 shows the rotating nut in view. The housing b of the wrench is designed with a conical undercut on the bearing surfaces b 'for the rotary nut d. Correspondingly, the rotating nut d is turned off conically on its circumference at d '. The end cheek li is designed as a cover plate which, with the ends of its legs i, engages under the undercuts q of the upper half bearing collar c '. Both in the housing b and on the nut d, sharp right-angled indentations, which form notches, are avoided.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DET1155D DE921198C (en) | 1944-01-04 | 1944-01-04 | Nut wrench with free wheel ratchet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DET1155D DE921198C (en) | 1944-01-04 | 1944-01-04 | Nut wrench with free wheel ratchet |
Publications (1)
Publication Number | Publication Date |
---|---|
DE921198C true DE921198C (en) | 1954-12-09 |
Family
ID=7543378
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DET1155D Expired DE921198C (en) | 1944-01-04 | 1944-01-04 | Nut wrench with free wheel ratchet |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE921198C (en) |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1136950B (en) * | 1956-12-18 | 1962-09-20 | Alois Schmid Dipl Ing | Universal tool |
EP0810068A1 (en) * | 1996-05-24 | 1997-12-03 | Hand Tool Design Corporation | Socket wrench of ratchet type |
EP0994765A1 (en) * | 1997-06-09 | 2000-04-26 | Hand Tool Design Corporation | Ratchet type ring spanner |
EP1074348A2 (en) * | 1999-08-03 | 2001-02-07 | Ltd. Hi-Five Products Developing Co. | Ratchet wheel with asymmetric arcuate concave teeth or non-arcuate concave teeth and ratcheting tools with such ratchet wheel |
US6431031B1 (en) | 1999-12-16 | 2002-08-13 | Bobby Hu | Reversible ratcheting tool with a smaller head |
US6450066B1 (en) | 2001-10-19 | 2002-09-17 | Bobby Hu | Head of a wrench handle |
US6457389B1 (en) | 2000-08-22 | 2002-10-01 | Bobby Hu | Switching arrangement for a reversible ratchet type wrench |
US6457387B1 (en) | 2000-01-11 | 2002-10-01 | Bobby Hu | Reversible ratcheting tool with a smaller head and improved driving torque |
US6520051B1 (en) | 2001-12-27 | 2003-02-18 | Bobby Hu | Head of a wrench handle |
US6539825B1 (en) | 2001-09-20 | 2003-04-01 | Yen-Wen Lin | Single direction ratcheting wrench with stuck prevention and ratcheting direction indication |
US6568299B2 (en) | 1999-12-16 | 2003-05-27 | Bobby Hu | Reversible ratcheting tool with a smaller head |
US6644148B2 (en) | 2002-02-08 | 2003-11-11 | Bobby Hu | Reversible ratchet-type wrench |
US6647832B2 (en) | 2001-07-27 | 2003-11-18 | Bobby Hu | Wrench having two rigid supporting areas for a pawl |
US6666117B2 (en) | 2001-07-13 | 2003-12-23 | Bobby Hu | Wrench with a fixed maximum operational torque |
US6666112B2 (en) | 2000-09-01 | 2003-12-23 | Bobby Hu | Switching arrangement for a reversible ratchet type wrench |
US6722234B2 (en) | 2001-05-14 | 2004-04-20 | Bobby Hu | Easy-to-operate and easy-to-assemble ratcheting-type wrench |
US6732614B2 (en) | 2001-02-19 | 2004-05-11 | Bobby Hu | Easy-to-manufacture and easy-to-assemble ratcheting-type wrench |
US6745647B2 (en) | 2000-11-29 | 2004-06-08 | Mei-Chen Wang | Wrench having a universal-joint ratchet wheel |
US6758641B2 (en) | 2001-07-13 | 2004-07-06 | Bobby Hu | Method for manufacturing a ratchet type ring spanner having a larger cavity for receiving a larger pawl |
US6807882B2 (en) | 2001-05-07 | 2004-10-26 | Bobby Hu | Wrench with a simplified structure |
DE102008055558A1 (en) | 2008-12-19 | 2010-06-24 | Wera-Werk Hermann Werner Gmbh & Co. Kg | Ratchet wrench |
-
1944
- 1944-01-04 DE DET1155D patent/DE921198C/en not_active Expired
Cited By (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1136950B (en) * | 1956-12-18 | 1962-09-20 | Alois Schmid Dipl Ing | Universal tool |
EP0810068A1 (en) * | 1996-05-24 | 1997-12-03 | Hand Tool Design Corporation | Socket wrench of ratchet type |
EP0994765A1 (en) * | 1997-06-09 | 2000-04-26 | Hand Tool Design Corporation | Ratchet type ring spanner |
EP0994765A4 (en) * | 1997-06-09 | 2000-05-24 | Hand Tool Design Corp | Ratchet type ring spanner |
USRE43286E1 (en) | 1999-08-03 | 2012-04-03 | Bobby Hu | Ratchet wheel with asymmetric arcuate concave teeth or non-arcuate concave teeth ratcheting tools with such ratchet wheel and combination of such ratchet wheel and a pawl |
EP1074348A3 (en) * | 1999-08-03 | 2001-05-23 | Ltd. Hi-Five Products Developing Co. | Ratchet wheel with asymmetric arcuate concave teeth or non-arcuate concave teeth and ratcheting tools with such ratchet wheel |
US6301998B1 (en) | 1999-08-03 | 2001-10-16 | Bobby Hu | Ratchet wheel with asymmetric arcuate concave teeth or non-arcuate concave teeth and socket wrench with such ratchet wheel |
EP1074348A2 (en) * | 1999-08-03 | 2001-02-07 | Ltd. Hi-Five Products Developing Co. | Ratchet wheel with asymmetric arcuate concave teeth or non-arcuate concave teeth and ratcheting tools with such ratchet wheel |
US6431031B1 (en) | 1999-12-16 | 2002-08-13 | Bobby Hu | Reversible ratcheting tool with a smaller head |
US6568299B2 (en) | 1999-12-16 | 2003-05-27 | Bobby Hu | Reversible ratcheting tool with a smaller head |
US6457387B1 (en) | 2000-01-11 | 2002-10-01 | Bobby Hu | Reversible ratcheting tool with a smaller head and improved driving torque |
US6457389B1 (en) | 2000-08-22 | 2002-10-01 | Bobby Hu | Switching arrangement for a reversible ratchet type wrench |
US6666112B2 (en) | 2000-09-01 | 2003-12-23 | Bobby Hu | Switching arrangement for a reversible ratchet type wrench |
US6745647B2 (en) | 2000-11-29 | 2004-06-08 | Mei-Chen Wang | Wrench having a universal-joint ratchet wheel |
US6732614B2 (en) | 2001-02-19 | 2004-05-11 | Bobby Hu | Easy-to-manufacture and easy-to-assemble ratcheting-type wrench |
US6807882B2 (en) | 2001-05-07 | 2004-10-26 | Bobby Hu | Wrench with a simplified structure |
US6722234B2 (en) | 2001-05-14 | 2004-04-20 | Bobby Hu | Easy-to-operate and easy-to-assemble ratcheting-type wrench |
US6666117B2 (en) | 2001-07-13 | 2003-12-23 | Bobby Hu | Wrench with a fixed maximum operational torque |
US6758641B2 (en) | 2001-07-13 | 2004-07-06 | Bobby Hu | Method for manufacturing a ratchet type ring spanner having a larger cavity for receiving a larger pawl |
US6647832B2 (en) | 2001-07-27 | 2003-11-18 | Bobby Hu | Wrench having two rigid supporting areas for a pawl |
US6539825B1 (en) | 2001-09-20 | 2003-04-01 | Yen-Wen Lin | Single direction ratcheting wrench with stuck prevention and ratcheting direction indication |
US6450066B1 (en) | 2001-10-19 | 2002-09-17 | Bobby Hu | Head of a wrench handle |
US6520051B1 (en) | 2001-12-27 | 2003-02-18 | Bobby Hu | Head of a wrench handle |
US6644148B2 (en) | 2002-02-08 | 2003-11-11 | Bobby Hu | Reversible ratchet-type wrench |
DE102008055558A1 (en) | 2008-12-19 | 2010-06-24 | Wera-Werk Hermann Werner Gmbh & Co. Kg | Ratchet wrench |
DE102008055558B4 (en) * | 2008-12-19 | 2020-02-20 | Wera Werkzeuge Gmbh | Ratchet wrench |
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