AU711408B3 - A tool - Google Patents
A tool Download PDFInfo
- Publication number
- AU711408B3 AU711408B3 AU44657/99A AU4465799A AU711408B3 AU 711408 B3 AU711408 B3 AU 711408B3 AU 44657/99 A AU44657/99 A AU 44657/99A AU 4465799 A AU4465799 A AU 4465799A AU 711408 B3 AU711408 B3 AU 711408B3
- Authority
- AU
- Australia
- Prior art keywords
- grips
- tool
- tool head
- length
- fixing pin
- 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.)
- Ceased
Links
Landscapes
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Description
P/00/012 Regulation 3.2
AUSTRALIA
Patents Act 1990
ORIGINAL
COMPLETE SPECIFICATION PETTY PATENT Invention Title: A TOOL The following statement is a full description of this invention, including the best method of performing it known to me: IP Australia Documents received on: 2 4 AUG 1999 Batch No: C:\WINWORDWIARLO\DAVIDMR597208.DOC A TOOL BACKGROUND OF THE INVENTION The present invention relates to a tool in which the grips can be opened by a larger angle to facilitate the replacement of tool heads with different usages.
Figs. 6 and 7 show a conventional tool composed of two grips 9 and multiple tool heads 91. The front end of each grip 9 is formed with a socket 92. The bottom of the tool head 91 is disposed with two insertion sections 93. The insertion sections 93 are inserted into the sockets 92 of the grips 9 and two bolts 94 are screwed into the grips 9 and the insertion sections 93 of the tool head 91 so as to replaceably connect the tool head 91 with the grips 9.
According to the above arrangement, the tool head 91 must be locked by the bolts 94. When replacing the tool head 91, the bolts 94 must be untightened by a screwdriver 95. Moreover, when tightening the bolts 94, the bolts 94 must be aimed at the insertion sections 93 and the grips 9. Therefore, it is uneasy to replace the tool head and the bolts 94 are likely to miss. In another conventional tool, the grips 9 are equipped with a switch for inserting with the tool head 91 (not shown). When replacing the tool head 91, the switchmust be switched. Such procedure is troublesome.
SUMMARY OF THE INVENTION It is therefore a primary object of the present invention to provide a tool including two grips and over one tool head. The grips can be opened to different extents so as to rotate the fixing pins of the grips relative to the openings of the tool head. Accordingly, the short sides of the fixing pins can be respectively aligned with the openings or the grips are stopped by the long sides of the fixing pins from detaching from the tool head. The grips can be easily and quickly assembled with or disassembled from the tool head. In addition, the replacement of the tool head can be performed by hands without using any tool or switch. Also, the tool has fewer components that are not easy to miss.
It is a further object of the present invention to provide the above tool having double lever structure which can be operated with strength saved.
The present invention can be best understood through the following description and accompanying drawings wherein: BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective exploded view of the tool of the present invention; Fig. 2 is a plane view of the tool of the present invention, showing the positions of the grips and the fixing pins in use; Fig. 3 is a plane view of the tool of the present invention, showing the positions of the grips and the fixing pins in a closed state; Fig. 4 is a plane view of the tool of the present invention, showing that the grips are opened for taking out the tool head; Fig. 5 shows that the tool head can be replaced by a different tool head; Fig. 6 is a perspective exploded view of a conventional tool; and Fig. 7 is a view according to Fig. 6, showing the replacement of the tool head of the conventional tool.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Please refer to Figs. 1 to 5. The tool of the present invention includes: two elongated grips 2, a top section of each grip being formed with a socket 21, an inner side of the socket 21 being disposed with a fixing pin 22, the fixing pin 22 being substantially a cylindrical body having two axial plane faces on two sides, whereby the cross-section of the fixing pin 22 having a long side 23 with a first length 231 and a short side 24 with a second length 241, the first length 231 being equal to the diameter of the fixing pin 22, the second length 241 being a distance between the two plane faces, the first length 231 being longer than the second length 241, the top ends of the grips 2 being pivotally connected by a pivot shaft a resilient member 26 such as a torque spring being disposed on the pivot shaft a tool head 3 which is one of various tools with different usages, such as a pincers, the tool head 3 being composed of two clamping members 31 pivotally connected with each other by a pivot shaft 32 spaced from the grips 2 by a certain distance, the lower side of each clamping member 31 of the tool head 3 being disposed with an insertion section 33, the bottomendof the insertion section 33 being formed with an insertion notch 34 having an opening thewidthof theopening35being less than thewidthof the insertion notch 34 and the first length 231 of the fixing pin 22 of the grip 22 and larger than the second length 241 of the fixing pin 22.
As shown in Fig. 4, when the grips 2 are opened to a certain extent, the short sides 24 of the grips 2 are respectively aimed at the openings 35 of the tool head 3 and the insertion sections 33 of the tool head 3 are inserted into the sockets 21 of the grips 2. Then the fixing pins 22 of the grips 2 are inserted into the insertion notches 34 of the tool head 3. Then the grips 2 are closed toward each other. At this time, due to the distance between the grips 2 and the pivot shaft 25 of the tool head 3, the fixing pins 22 of the grips 2 are rotated relative to the openings 35 of the tool head 3. Therefore, the grips 2 are stopped by the long sides 23 fromdetaching from the tool head 3 and thus the grips 2 are firmly associated with the tool head 3.
When replacing the tool head 3, the grips 2 are opened with the short sides 24 aligned with the openings 35 of the tool head 3. At this time, the tool head3 can be easily taken out. In addition, the resilient member 26 of the grips 2 abuts against the two clamping members 31 of the tool head 3 to keep the top ends of the grips 2 open in a normal state. However, as shown in Fig. 2, the grips 2 are not opened to such an extent that the short sides 24 are aligned with the openings 34 of the tool head 3. Therefore, the grips 2 are still firmly associated with the tool head 3 without detachment.
Moreover, by means of the distance between the grips 2 and the pivot shaft 25 of the tool head 3 and by means of the pivotally connected fixing pins 22 of the grips 2 and the insertion notches 34 of the tool head 3, the tool of the present invention has a double lever structure which can be operated with strength saved.
The above embodiment of the present invention can be modified.
For example, the fixing pins 22 can be alternatively disposed on the tool head 3 and the insertion notches 34 can be formed on the grips 2.
According to the above arrangement, the grips can be opened to different extents so as to rotate the fixing pins 22 of the grips 2 relative to the openings 35 of the tool head 3. Accordingly, the short sides 24 are respectively aligned with the openings 35 or the grips 2 are stopped by the long sides 23 from detaching from the tool head 3. Therefore, the grips 2 can be easily and quickly assembled with or disassembled from the tool head 3. In addition, the replacement of the tool head can be performed by hands without using any tool or switch. Also, the present invention has fewer components which are not easy to miss.
The above embodiments are only used to illustrate the present invention, not intended to limit the scope thereof. Many modifications of the above embodiments can be madewithout departing from the spirit of the present invention.
Claims (3)
1. A tool comprising: two grips each of which is disposed with a fixing pin, a cross-section of the fixing pin having a long side with a first length and a short side with a second length, the first length being longer than the second length, the grips being pivotally connected with each other by a pivot shaft; a tool head composed of two clamping members pivotally connected with each other by a pivot shaft spaced from the grips by a certain distance, a lower side of each clamping member of the tool head being disposed with an insertion section formed with an insertion notch having an opening, the width of the opening being less than the width of the insertion notch and the first length of the fixing pin of the grip and larger than the second length of the fixing pin.
2. A tool as claimed in claim 1, wherein a top section of each grip is formed with a socket and the fixing pin is disposed on inner side of the socket.
3. A tool as claimed in claim 1, wherein the fixing pin is a cylindrical body having two axial plane faces on two sides. DATED: 24 August, 1999 PHILLIPS ORMONDE FITZPATRICK Attorneys for: JIN-FU CHEN 1
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/333,020 US6131495A (en) | 1999-06-15 | 1999-06-15 | Tool having replaceable tool heads |
| DE29910487U DE29910487U1 (en) | 1999-06-15 | 1999-06-15 | Tool |
| GB9919714A GB2353244A (en) | 1999-06-15 | 1999-08-19 | Pliers with easily changeable head |
| AU44657/99A AU711408B3 (en) | 1999-06-15 | 1999-08-24 | A tool |
| CA002302857A CA2302857A1 (en) | 1999-06-15 | 2000-03-24 | Tool with replaceable tool heads |
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/333,020 US6131495A (en) | 1999-06-15 | 1999-06-15 | Tool having replaceable tool heads |
| DE29910481U DE29910481U1 (en) | 1998-06-16 | 1999-06-15 | Collapsible cover |
| GB9919714A GB2353244A (en) | 1999-06-15 | 1999-08-19 | Pliers with easily changeable head |
| AU44657/99A AU711408B3 (en) | 1999-06-15 | 1999-08-24 | A tool |
| CA002302857A CA2302857A1 (en) | 1999-06-15 | 2000-03-24 | Tool with replaceable tool heads |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU711408B3 true AU711408B3 (en) | 1999-10-14 |
Family
ID=27506914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU44657/99A Ceased AU711408B3 (en) | 1999-06-15 | 1999-08-24 | A tool |
Country Status (1)
| Country | Link |
|---|---|
| AU (1) | AU711408B3 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU7071194A (en) * | 1993-06-08 | 1995-01-03 | Knipex-Werk | Pliers with two arms and one set of jaws |
| AU6662796A (en) * | 1995-07-27 | 1997-02-26 | Bost Garnache Industries | Tool with adjustable hinged handles |
| AU4306597A (en) * | 1996-09-25 | 1998-04-17 | Bost Garnache Industries | Device for assembling a clamping jaw |
-
1999
- 1999-08-24 AU AU44657/99A patent/AU711408B3/en not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU7071194A (en) * | 1993-06-08 | 1995-01-03 | Knipex-Werk | Pliers with two arms and one set of jaws |
| AU6662796A (en) * | 1995-07-27 | 1997-02-26 | Bost Garnache Industries | Tool with adjustable hinged handles |
| AU4306597A (en) * | 1996-09-25 | 1998-04-17 | Bost Garnache Industries | Device for assembling a clamping jaw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NCF | Extension of term for petty patent requested (sect. 69) | ||
| NDF | Extension of term granted for petty patent (sect. 69) |