GB2189727A - A screwdriver - Google Patents
A screwdriver Download PDFInfo
- Publication number
- GB2189727A GB2189727A GB08610454A GB8610454A GB2189727A GB 2189727 A GB2189727 A GB 2189727A GB 08610454 A GB08610454 A GB 08610454A GB 8610454 A GB8610454 A GB 8610454A GB 2189727 A GB2189727 A GB 2189727A
- Authority
- GB
- United Kingdom
- Prior art keywords
- screwdriver
- driving
- hole
- driving piece
- axial
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16P—SAFETY DEVICES IN GENERAL; SAFETY DEVICES FOR PRESSES
- F16P1/00—Safety devices independent of the control and operation of any machine
- F16P1/02—Fixed screens or hoods
-
- 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
- B25B15/00—Screwdrivers
-
- 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
- B25B15/00—Screwdrivers
- B25B15/02—Screwdrivers operated by rotating the handle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F1/00—Combination or multi-purpose hand tools
- B25F1/02—Combination or multi-purpose hand tools with interchangeable or adjustable tool elements
- B25F1/04—Combination or multi-purpose hand tools with interchangeable or adjustable tool elements wherein the elements are brought into working positions by a pivoting or sliding movement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25G—HANDLES FOR HAND IMPLEMENTS
- B25G1/00—Handle constructions
- B25G1/08—Handle constructions with provision for storing tool elements
- B25G1/085—Handle constructions with provision for storing tool elements for screwdrivers, wrenches or spanners
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
A screwdriver includes a cap (5) having a square hole and a screwdriver body (1) of about 10-20 cm and having an axial through hole (101) in which there is mounted a plurality of different driving pieces (2) each of which has a non-through axial hole (201) which partly receives therein one of the driving pieces. When the protruding driving piece is removed and inserted through the cap the next driving piece is forced into the operational position. <IMAGE>
Description
SPECIFICATION
A screwdriver
The present invention relates to a screwdriver, and more particularly to a screwdriver having a plurality of driving pieces.
It is known that a driving piece can be detachably secured to, for example, by being screwed on, a screwdriver body to achieve the purpose of easily replacing a driving piece for being used. However, such a screwdriver cannot be used at the presence of a driving piece of different gauge under which circumstance a different screwdriver body is called for which thus causes inconveniences and in turn bears a high cost. In addition, it is time-consuming in replacing a driving piece. Furthermore, a screwdriver generally is packaged with four driving pieces which thus results a relatively large package volume.
It is therefore tried by the applicant to mitigate the shortcoming encountered bythe prior art.
It is therefore an object ofthe present invention to provide a screwdriver having a screwdriver body capable of containing therein a pluralityofeasily replaceable driving pieces of differenttypes and gauges.
It is another object of the present invention to provide a screwdriver the cost of which is relatively cheap.
In accordance with one aspect ofthe present invention, a screwdriver including a screwdriver body having an axial through holewhich receives therein a plurality of driving pieces of different types and gauges.
The present invention may best be understood with a preferred embodiment described with reference to the accompanying drawings, in which:
Figure 1A is a schematically perspective view showing a cap and a screwdriver body of a screwdriver of the present invention;
Figure 1B is a sectional view showing a driving piece of a screwdriver of the present invention;
Figure 7C is a schematically perspective view of a screwdriver of the present invention;
Figure2A is a schematically sectional view of a screwdriver of the present invention;
Figure2B is a sectional view showing the top of a screwdriver body of a screwdriver of the present invention;
Figure2Cis a sectional view showing the bottom of a screwdriver body of a screwdriver of the present invention;;
Figure 3 is a fragmentarilyperspectiveview showing that a screwdriver ofthe present invention works at a screw; Figure4isafragmentarily perspectiveview showing how a screwdriver of the present invention replaces a driving piece;
Figure 5A is a sectional view showing a position reiationship between a cap and a screwdriver body of a screwdriver body of a screwdriver of the present invention,which allows a driving piece passing through a square hole of the cap;
Figure 5B is a sectional view showing a position relationship, which confines driving pieces in a through axial hole of the screwdriver body, between a cap and the screwdriver body of a screwdriver of the present invention; and
Figure 6 is a schematically perspective view showing a clipped screwdriver of the present invention
Referring nowto Figures 1A - 1C,there is shown a screwdriverofthe present invention which includes a screwdriver body 1 made of a transparent or semi-transparent plastic material which includes a tubular portion 12 and a handle portion 11 atop end 16 of which is engagable with a cap 5 which includes two (or more) inside semi-spherical sockets 502 and an inside bottom flange 503.Top end 16 adjoins at the bottom thereof an annular groove 106 in which bottom flange 503 can engage (see Figure 2B also), and has two (or more equal to that of sockets 502) cylindrical radial holes 105 in each of which there are mounted a steel ball 14 and a spring 15 which u rges ball 14 against one of sockets 502.
Cap 5 has a squarethrough hole501 and screwdriver body 1 has an axial through hole 101 which includes an inlet portion 102, which may have a dimension the same as that of hole 501. The bottom oftubular portion 12 includes an annular ridge 103 overwhich an inner annular ridge 401 of an optionally provided cover 4 can pass over for being attached thereto in order to prevent a driving piece protruding beyondthe bottom oftubular portion 12 from occuring a damage when cover 4 is pressed against the bottom portion of tubular portion 12.
The present screwdriver body 1 further contains therein a plurality of driving pieces 2 each of which includes a driving rod 3 and a driving bodywhich includes a tapered axial hole 201, a tapered portion 202 and a square portion 203 each side of which is provided with a longitudinal flange 204. Axial hole 201 can receive therein driving rod 3 secured on the respective tapered portion 202 and tapered portion 202 of another one driving piece 2. Thus, screwdriver body 1 contains therein a plurality of driving pieces 2 in awaythataxial hole 201 of a driving piece 2 receives therein driving rod 3 and tapered portion 202 of another driving piece 2 above it.
Referring to Figures 2A & 2B,the width W2 of through hole 101 is slightly larger than the width W1 of inlet portion 102 which can just pass square portion 203 which also can pass through thethrough hole 501 with flanges 204 engagingly contact with inlet portion 102 and through hole 501. Since through hole 101 and square portion 203 are of square constructions, driving piece 2 cannot rotate within through hole 101.
As shown in Figure2C,tubularportion 12 can have the lower portion thereof provided with an inside annular ridge 104which can engagingly contactwith driving piece 2 which protrudes beyond the bottom oftubularportion 12.
It is noticeable that driving piece 2 can be of various type and gauge.
Referring to Figures 3 - 5B, cap 5 is rotated 45Q relative to top end 16so that balls 14 are seated on sockets 502 and the toppest driving piece 2 cannot escape from through hole 501.
Upon replacing a driving piece 2, cap 5 is rotated further 450 relative to top end 16 so that balls 14 are pressed in cylindrical holes 105 and square hole 501 aligns with inlet portion 102. Atthis time,when driving piece 2 extracted from the bottom oftubular portion 12 is inserted into through hole 501 and inlet portion 102, another one driving piece 2 will protrude beyond the bottom of tubular portion 12 and is ready for being used.
As shown in Figure 6, handle portion 11 can be provided with a clip 13, which can be of hidden-type, i.e. it only exposes a curied end 131 when not pulled when viewed from the outer appearance of handle portion 11, which can have screwdriver body 1 clipped on a pocket of one's clothes.
Claims (13)
1. A screwdriver comprising a screwdriver body including an upper handle portion having a top end and a lowertubular portion, having an axial through hole and containing therein a plurality of driving pieces; and a cap engagable with said top end and having athrough holesothatwith a driving piece being extracted from the bottom of said tubular portion and being inserted through said through holes, another driving piece will protrude beyond said bottom of said tubular portion.
2. A screwdriver according to Claim 1, further comprising a plurality of bails and a plurality of springs and wherein said top end adjoins atthe bottom thereof an annular groove and has a plurality of cylindrical holes; each of said driving pieces includes a driving body and a driving rod secured on said body; said cap further includes a plurality of inside semi-spherical sockets and an inside bottom flange; and all of said balls and springs are respectively received in said cylindrical holes and each pair of one of said balls and one of said springs are capable of engaging against one of said sockets.
3. A screwdriver of Claims 2 wherein said through holes have a square shape and said axial through hole includes an inlet portion which has a side width smallerthan that of said axial through hole.
4. A screwdriver of Claim 3 wherein said square through hole has a side width substantially the same as that of said inlet portion and by a relative position between said cap and said top end, said driving pieces can be confined within said axial through hole.
5. A screwdriver of Claim 3wherein said driving body includes a square portion which has a side width the same as that of said inlet portion.
6. A screwdriver of Claim 5 wherein said square portion has each of its outer side surface provided with a longitudinal flange by which said driving body will engagingly contact with said inlet portion when passing therethrough.
7. A screwdriver of Claim 2 wherein said driving piece can be of various type and gauge.
8. A screwdriver of Claim 2 wherein said tubular portion has the lower portion thereof provided with an inside annular ridge which can engagingly contactwith said driving piece which protrudes beyond said bottom.
9. Ascrewdriver of Claim 2 wherein said driving body includes a tapered axial hole which receives therein adriving rod of another one driving piece.
10. A screwdriver according to Claim 2, further comprising a clip, mounted on said handle portion, for enabling said screwdriver to be clipped on a pocket or a belt.
11. A screwdriver of Claim 2, further comprising a cover capable covering the lower portion of said tubular portion and a driving piece which protrudes beyond said bottom.
12. A screwdriver of Claim 1 wherein said tubular portion has the bottom thereof provided with an outer annular ridge and said cover includes an inner annular ridge which can pass over said outer annular ridge for being attached thereto when said cover is pressed against said bottom.
13. A screwdriver substantially as hereinbefore described with reference to the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8610454A GB2189727B (en) | 1986-04-29 | 1986-04-29 | A screwdriver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8610454A GB2189727B (en) | 1986-04-29 | 1986-04-29 | A screwdriver |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8610454D0 GB8610454D0 (en) | 1986-06-04 |
| GB2189727A true GB2189727A (en) | 1987-11-04 |
| GB2189727B GB2189727B (en) | 1989-11-29 |
Family
ID=10597036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8610454A Expired GB2189727B (en) | 1986-04-29 | 1986-04-29 | A screwdriver |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2189727B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5664312A (en) * | 1995-05-24 | 1997-09-09 | Makita Corporation | Method of detaching a driver bit from a screwdriver and a stop ring provided with a function of removing the driver bit appropriate for practicing the method |
| EP0851802A1 (en) * | 1995-02-01 | 1998-07-08 | Allway Tools, Inc. | Plastic screwdriver with retaining ring |
| GB2350075A (en) * | 1999-05-18 | 2000-11-22 | Keith Martyn Jones | Combination drill and screwdriver tool |
| US6203165B1 (en) * | 1999-10-22 | 2001-03-20 | Martin Chen | Tool combination with an ilumination device |
| EP2985120A3 (en) * | 2014-08-11 | 2016-02-24 | Mininch Inc. | Tool pen with detachable function |
| CN105643571A (en) * | 2016-03-15 | 2016-06-08 | 中山纽创自动化科技有限公司 | Screwdriver |
-
1986
- 1986-04-29 GB GB8610454A patent/GB2189727B/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0851802A1 (en) * | 1995-02-01 | 1998-07-08 | Allway Tools, Inc. | Plastic screwdriver with retaining ring |
| EP0851802A4 (en) * | 1995-02-01 | 1998-12-09 | Allway Tools | Plastic screwdriver with retaining ring |
| US5664312A (en) * | 1995-05-24 | 1997-09-09 | Makita Corporation | Method of detaching a driver bit from a screwdriver and a stop ring provided with a function of removing the driver bit appropriate for practicing the method |
| GB2350075A (en) * | 1999-05-18 | 2000-11-22 | Keith Martyn Jones | Combination drill and screwdriver tool |
| US6203165B1 (en) * | 1999-10-22 | 2001-03-20 | Martin Chen | Tool combination with an ilumination device |
| EP2985120A3 (en) * | 2014-08-11 | 2016-02-24 | Mininch Inc. | Tool pen with detachable function |
| CN105643571A (en) * | 2016-03-15 | 2016-06-08 | 中山纽创自动化科技有限公司 | Screwdriver |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8610454D0 (en) | 1986-06-04 |
| GB2189727B (en) | 1989-11-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |