TWI412442B - Swing tool kit - Google Patents

Swing tool kit Download PDF

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Publication number
TWI412442B
TWI412442B TW100141282A TW100141282A TWI412442B TW I412442 B TWI412442 B TW I412442B TW 100141282 A TW100141282 A TW 100141282A TW 100141282 A TW100141282 A TW 100141282A TW I412442 B TWI412442 B TW I412442B
Authority
TW
Taiwan
Prior art keywords
movable
unit
tool
positioning
head
Prior art date
Application number
TW100141282A
Other languages
Chinese (zh)
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TW201318790A (en
Original Assignee
Stand Tools Entpr Co Ltd
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 Stand Tools Entpr Co Ltd filed Critical Stand Tools Entpr Co Ltd
Priority to TW100141282A priority Critical patent/TWI412442B/en
Publication of TW201318790A publication Critical patent/TW201318790A/en
Application granted granted Critical
Publication of TWI412442B publication Critical patent/TWI412442B/en

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Abstract

The present invention provides a pivoting head changing tool set, which comprises a fixing member, a driven unit for driving the fixing member to rotate around an axis, the first and second movable members respectively mounted on the fixing member, an operation unit mounted between the first movable member, the second movable member and the fixing member, a stroke control unit configured between the operation unit and the fixing member, and a dual-head tool unit rotatably mounted between the first and second movable members by means of a radial pivot bolt. By means of the operation unit for driving the first and second movable members to move along the axis, the dual-head tool unit can be synchronously driven to move to a pull-out position being able to rotate or a receiving position being not able to rotate, such that the present invention may have better overall structure strength, and provide better torque transmission efficiency.

Description

Pivot changing tool set
The present invention relates to a hand tool, and more particularly to a pivoting head changing tool set.
In order to improve the ease of use, the hand tool manufacturer has developed a shaft-type double-head tool set that can be driven by a pneumatic (or electric) tool and has two tool heads that can be rotated and transformed. US 7,237,987 B2, US 6,877,937 B2 The shaft-type double-head tool set disclosed in the patent No. 4,512,693 has a fixing base, one end of which is connected to a driven rod driven by a pneumatic tool, and the other end is pivoted by a pivot. a rotating double-head tool set, a clutch member movably sleeved outside the fixing seat to be sleeved or detached from the double-head tool set, and a mounting in the fixing seat and being limited to the fixing seat a spring between the clutch members.
The shaft-type double-head tool set disclosed in U.S. Patent No. 4,676,703 has a fixing base which is connected at one end to a driven rod driven by a pneumatic tool, and the other end is pivoted and pivoted by a pivot. a movable double-head tool set, and a two-position combination body disposed between the double-head tool set and the fixed seat, each positioning assembly has a screw screwed to the fixed seat, and is disposed on the double The number of positioning slots of the head tool set, the US Patent No. 4,676,703 has the function of changing the two tool heads of the double-head tool set, but the overall structural strength of the shaft-type double-head tool set is poor. The shaft is easily damaged, the torque transmission efficiency is not good, and the positioning effect of the double-head tool set is not good.
Therefore, the object of the present invention is to provide a pivoting head changing tool set which can improve the overall structural strength, can reduce the component damage rate, can improve the torque transmission efficiency, and can improve the positioning effect of the double-head tool unit.
Therefore, the pivoting head changing tool set of the present invention comprises a fixing member, a driven unit, a first movable member, a second movable member, an operating unit, a stroke control unit and a double-head tool unit.
The fixing member includes a first sidewall and a second sidewall surrounding an axis, and two connecting walls connecting the first sidewall and the second sidewall, and respectively disposed along the axis on the first sidewall and the second sidewall a first recessed groove and a second embedded slot.
The driven unit includes a driven rod, a joint seat at one end of the driven rod and capable of rotating the fixing member about the axis.
The first movable member and the second movable member are respectively located in the first and second slots and are movable along the axis, and the first movable member and the second movable member respectively have an interlocking segment and a Pivot segment.
The operating unit includes a sliding sleeve disposed between the two interlocking segments and the fixing member for interlocking the first movable member and the second movable member.
The stroke control unit is disposed between the sliding sleeve and the fixing member for controlling the sliding movement of the first movable member and the second movable member along the axis.
The double-head tool unit includes a base block rotatably mounted between the two pivotal knots by a radial shaft bolt, and a first tool head and a first extending from the base block along the axis Two tool heads.
The utility model has the advantages that: the double-head tool unit is installed between the first movable member and the pivoting portion of the second movable member, and the first movable member and the second can be driven when the sliding sleeve is operated The movable member simultaneously moves the double-head tool unit to move along the axis to be rotatable in the pull-out position or to be non-rotatable at the income position, thereby making the overall structural strength of the present invention better, and reducing the damage rate of the radial shaft plug, Can improve the torque transmission efficiency.
The foregoing and other objects, features, and advantages of the invention are set forth in the <RTIgt;
As shown in FIG. 1 to FIG. 6, the preferred embodiment of the pivoting head changing tool set of the present invention comprises a fixing member 10, a driven unit 20, a first movable member 30, a second movable member 40, and a The operation unit 50, a stroke control unit 60, a double-head tool unit 70, a stroke positioning unit 80 and an angle positioning unit 90.
The fixing member 10 includes a first side wall 11 and a second side wall 12 surrounding an axis I and two connecting walls 13 and 14 connecting the first side wall 11 and the second side wall 12, respectively disposed in the radial direction. a first through hole 15 and a second through hole 16 of the first side wall 11 and the second side wall 12, and a first recessed groove 17 and a first side wall 11 and the second side wall 12 respectively along the axis I The second recess 18 is provided.
The first recessed groove 17 has a U-shaped cross section and is formed by a groove bottom surface 171 and two force receiving surfaces 172.
The second recess 18 has a U-shaped cross section and is formed by a groove bottom surface 181 and two force receiving surfaces 182.
Preferably, the fixing member 10 further includes a plurality of ribs 19 disposed on the bottom surface 171 of the groove and the bottom surface 181 of the groove along the axis I.
The driven unit 20 includes a driven rod 21, a connecting seat 22 at one end of the driven rod 21 and inserted into the fixing member 10, and a radial connecting hole 23 disposed in the connecting seat 22, A convex ring 24 at a boundary between the driven rod 21 and the joint seat 22, and a joint pin 25 radially inserted between the first through hole 15 and the radial joint hole 23 and the second through hole 16.
The connecting seat 22 can drive the fixing member 10 to rotate about the axis I by the connecting pin 25.
Preferably, the driven unit 20 further includes a set of end caps 26 placed on the joint 22 by the collar 24.
The first movable member 30 and the second movable member 40 are respectively mounted on the first side wall 11 and the second side wall 12, and are respectively located in the first recessed groove 17 and the second embedded groove 18 and are in contact with each other. The ribs 19 are movable along the axis I. The first movable member 30 and the second movable member 40 respectively have a linking section 31, 41 in the opposite direction and a pivoting section 32, 42 protruding from the fixing member 10. Two screw holes 33 and 42 respectively disposed in the two interlocking sections 31 and 41, and a flange 34 and 44 respectively disposed on the inner surfaces of the two pivoting sections 32 and 42 and a first through the flanges 34 and 44 A pivot hole 35, 45.
The first activity can be improved by providing the first slot 17 and the second slot 18 for the first movable member 30 and the second movable member 40 to be mounted on the first side wall 11 and the second side wall 12. The member 30 and the smoothness and stability of the movement of the second movable member 40 along the axis I. Further, when the rotation is about the axis I, the first movable member 30 is respectively provided by the force receiving surfaces 172 and 182. The second movable member 40 is abutted, and the rotational torque value transmitted by the fixing member 10 to the first movable member 30 and the second movable member 40 can be increased. By the arrangement of the protruding strips 19, the The contact area between the first movable member 30 and the second movable member 40 and the two groove bottom surfaces 171 and 181 can further reduce the moving friction.
The operating unit 50 includes a sliding sleeve 51 sleeved on the two interlocking segments 31, 41 and the outer portion 10 of the fixing member, and a plurality of connecting members 52 mounted between the sliding sleeve 51 and the two interlocking segments 31, 41.
The sliding sleeve 51 has three third through holes 511 and a fourth through hole 512 which are aligned with the screw holes 33, 43 of the first movable member 30 and the second movable member 40.
In the preferred embodiment, the connecting member 52 is a screw and has a number of three, respectively passing through the three third through holes 511 in the radial direction and locking the screw holes 33, 43 to make the sliding sleeve 51 and the first The movable member 30 and the second movable member 40 are coupled to each other along the axis I.
It should be noted that the sliding sleeve 51 can also be directly coupled to the first movable member 30 and the second movable member 40, so that the screw holes 33, 43 and the third through holes 513 and the connecting members can be omitted. 52.
The stroke control unit 60 is disposed between the sliding sleeve 51 and the fixing member 10 for controlling the sliding movement of the first movable member 30 and the second movable member 40 along the axis I. The stroke control unit 60 includes a long hole 61 extending along the axis I of the second side wall 12, and a radial insertion through the second movable member 40 and extending into the elongated hole 61. Item 62.
The elongated hole 61 has a revenue dead point 611 and a pull-out dead point 612 in opposite directions, and the income dead point 611 is adjacent to the second through hole 16.
In the preferred embodiment, the blocked member 62 is a bolt that passes through the fourth through hole 512 of the sliding sleeve 51 and locks into the screw hole 43 of the second movable member 40 and protrudes into the elongated hole 61.
The double-head tool unit 70 includes a base block 71 rotatably mounted between the two pivotal sections 32, 42 by a radial shaft pin 74, one extending from the base block 71 along the axis I, respectively. a first tool head 72 and a second tool head 73, and a first chuck 75 which is respectively fixed outside the first tool head 72 and the second tool head 73 and can enter the fixing member 10 A second collet 76.
The base block 71 has a second pivot hole 711 aligned with the two first pivot holes 36, 46.
The radial shaft pin 74 is disposed between the two first pivot holes 36, 46 and the second pivot hole 711, so that the double-head tool unit 70 can rotate the radial shaft pin 74. In the preferred embodiment, the pivot pin 74 has a first bolt 741 passing through the two first pivot holes 36, 46 and the second pivot hole 711, and a second bolt locked into the first bolt 741. Item 742.
The first tool head 72 and the second tool head 73 can be changed according to the use requirements. In the preferred embodiment, the first tool head 72 is a drill bit, and the second tool head 73 is a screwdriver head.
The stroke positioning unit 80 includes a first receiving hole 81 disposed in the first movable member 30, and a first elastic member 82 mounted on the first receiving hole 81, and is pushed by the first elastic member 82. The first positioning bead 83 and the income positioning hole 84 and the pull-out positioning hole 85 are disposed on the first side wall 11 for the first positioning bead 83 to enter.
The first resilient member 82 is a compression spring in the preferred embodiment.
The angle locating unit 90 includes a second accommodating hole 91 disposed in the base block 71, a second elastic member 92 mounted on the second accommodating hole 91, and a second elastic member 92. Two positioning beads 93 and a plurality of positioning grooves 94 provided in the flange 44 of the second movable piece 40.
In the preferred embodiment, the number of the positioning slots 94 is four, which is 90. Equal angle interval setting.
In use, when the double-head tool unit 70 is in the income position as shown in FIG. 4, the double-head tool unit 70 is in an operable state, at which time the blocked member 62 of the stroke control unit 60 is located in the elongated hole. The income point dead point 611 of 61, the first positioning bead 83 of the stroke positioning unit 80 enters the income positioning hole 84, and the second tool head 73 of the double-head tool unit 70 is received into the fixing member 10, and the The second clamping head 76 abuts against the first side wall 11 and the second side wall 12 of the fixing member 10, so that the double-head tool unit 70 cannot rotate with the radial shaft bolt 74 as a fulcrum, and the first tool head 72 is exposed. When the driven rod 21 is driven to rotate by a pneumatic tool, the pivoting head changing tool set of the present invention can be rotated to make the exposed first tool head 72 work.
To be converted into the second tool head 73, as shown in FIG. 4 and FIG. 7, first, the sliding sleeve 51 is pulled toward the pull-out point 612 of the elongated hole 61, except for the fixing member 10 and the The driving unit 20 does not move, and other components move along the axis I toward the pull-out dead point 612 until the blocked member 62 reaches the pull-out dead point 612 and cannot continue to move. At this time, the stroke positioning unit 80 The first positioning bead 83 enters the positioning position of the pull-out positioning hole 85. The second tool head 73 and the second clamping head 76 are disengaged from the fixing member 10, so that the double-head tool unit 70 can be the radial shaft pin 74. As shown in FIG. 7 , FIG. 8 , FIG. 2 and FIG. 6 , when the double-head tool unit 70 is rotated, the second positioning bead 93 of the angle positioning unit 90 can enter the positioning groove 94, so that the positioning shaft 94 is rotated. When the double-head tool unit 70 is rotated by 90°, 180°, 270°, and 360°, the positioning position is generated. As shown in FIG. 7 , FIG. 8 , and FIG. 9 , when the double-head tool unit 70 is rotated by 180°, The second tool head 73 is exposed outside the first movable member 30 and the second movable member 40. The first tool head 72 is located at the two pivoting segments. 32, 42, finally, the sliding sleeve 51 is pulled toward the income dead point 611 of the elongated hole 61, and then the other components are oriented along the axis I toward the income except that the fixing member 10 and the driven unit 20 are not moved. The direction of the dead point 611 is moved until the blocked member 62 reaches the income dead point 611, and the first positioning bead 83 of the stroke positioning unit 80 enters the income positioning hole 84 to be positioned. A tool head 72 is received in the fixing member 10, and the first chuck 75 abuts against the first side wall 11 and the second side wall 12 of the fixing member 10, so that the double-head tool unit 70 cannot be bolted with the radial shaft. 74 is pivoted, the second tool head 73 is exposed, and when the driven rod 21 is driven to rotate by a pneumatic tool, the second tool head 73 can be operated by the exposure.
In summary, the pivoting head changing tool set of the present invention has the following advantages and advantages, so that the object of the invention can be achieved:
The double-head tool unit 70 is installed between the first movable member 30 and the pivoting segments 32 and 42 of the second movable member 40, and the first movable member can be driven by operating the sliding sleeve 51. And moving the double-head tool unit 70 along the axis I at the same time, so that the double-head tool unit 70 is located at the pull-out position or the income position, and the double-head tool unit can be rotated when the pull-out position is located. 70 to change the first tool head 72 or the second tool head 73 in an operable state, thereby making the invention have better overall structural strength, can reduce the damage rate of the radial shaft bolt 74, and can improve the torque transmission efficiency. Efficacy and advantages.
2. The present invention can improve the positioning effect of the double-head tool unit 70 by the design of the stroke control unit 60 and the stroke positioning unit 80 and the angle positioning unit 90.
The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.
10. . . Fastener
11. . . First side wall
12. . . Second side wall
13. . . Connecting wall
14. . . Connecting wall
15. . . First perforation
16. . . Second perforation
17. . . First slot
171. . . Groove bottom
172. . . Force surface
18. . . Second slot
181. . . Groove bottom
182. . . Force surface
19. . . Rib
20. . . Driven unit
twenty one. . . Driven rod
twenty two. . . Link
twenty three. . . Radial connection hole
twenty four. . . Convex ring
25. . . Link pin
26. . . End cap
30. . . First moving piece
31. . . Linkage segment
32. . . Pivot segment
33. . . Screw hole
34. . . Flange
35. . . First pivot hole
40. . . Second movable part
41. . . Linkage segment
42. . . Pivot segment
43. . . Screw hole
44. . . Flange
45. . . First pivot hole
50. . . Operating unit
51. . . Sleeve
511. . . Third perforation
512. . . Fourth perforation
52. . . Linking component
60. . . Stroke control unit
61. . . Long hole
611. . . Income death point
612. . . Pull out the dead point
62. . . Blocked piece
70. . . Double-head tool unit
71. . . Base block
711. . . Second pivot hole
72‧‧‧First tool head
73‧‧‧Second tool head
74‧‧‧radial shaft bolt
741‧‧‧First bolt
742‧‧‧Second bolt
75‧‧‧First chuck
76‧‧‧Second chuck
80‧‧‧Travel positioning unit
81‧‧‧First accommodating hole
82‧‧‧First elastic parts
83‧‧‧First positioning beads
84‧‧‧ income positioning hole
85‧‧‧ Pull out the positioning hole
90‧‧‧Angle positioning unit
91‧‧‧Second accommodating hole
92‧‧‧Second elastic parts
93‧‧‧Second positioning bead
94‧‧‧ positioning slot
I‧‧‧ axis
1 is a combined perspective view of a preferred embodiment of a pivoting head changing tool set of the present invention;
Figure 2 is an exploded perspective view of the preferred embodiment;
Figure 3 is another exploded perspective view of the preferred embodiment showing a stroke control unit and an angular positioning unit;
Figure 4 is a cross-sectional view taken from line IV-IV of Figure 1, showing a double-head tool unit in a revenue position;
Figure 5 is a cross-sectional view taken from line V-V in Figure 4;
Figure 6 is a cross-sectional view taken from line VI-VI in Figure 4;
Figure 7 is a view similar to Figure 4, showing the double-head tool unit in a pull-out position;
Figure 8 is a view similar to Figure 7, showing the state in which the double-head tool unit is in the pulled-out position and rotated by 180°;
Figure 9 is a view similar to Figure 8 showing the dual head tool unit in the revenue position.
10. . . Fastener
11. . . First side wall
12. . . Second side wall
13. . . Connecting wall
14. . . Connecting wall
15. . . First perforation
16. . . Second perforation
17. . . First slot
18. . . Second slot
20. . . Driven unit
twenty one. . . Driven rod
twenty two. . . Link
twenty three. . . Radial connection hole
twenty four. . . Convex ring
25. . . Link pin
26. . . End cap
30. . . First moving piece
31. . . Linkage segment
32. . . Pivot segment
33. . . Screw hole
34. . . Flange
35. . . First pivot hole
40. . . Second movable part
41. . . Linkage segment
42. . . Pivot segment
43. . . Screw hole
45. . . First pivot hole
50. . . Operating unit
51. . . Sleeve
511. . . Third perforation
512. . . Fourth perforation
52. . . Linking component
60. . . Stroke control unit
61. . . Long hole
611. . . Income death point
612. . . Pull out the dead point
62. . . Blocked piece
70. . . Double-head tool unit
71. . . Base block
711. . . Second pivot hole
72. . . First tool head
73. . . Second tool head
74. . . Radial shaft bolt
741. . . First bolt
742‧‧‧Second bolt
75‧‧‧First chuck
76‧‧‧Second chuck
80‧‧‧Travel positioning unit
81‧‧‧First accommodating hole
82‧‧‧First elastic parts
83‧‧‧First positioning beads
90‧‧‧Angle positioning unit
91‧‧‧Second accommodating hole
92‧‧‧Second elastic parts
93‧‧‧Second positioning bead
I‧‧‧ axis

Claims (9)

  1. A pivoting head changing tool set comprising: a fixing member comprising a first side wall and a second side wall surrounding an axis; and two connecting walls connecting the first side wall and the second side wall, and respectively along the axis a first recessed groove and a second recessed groove are disposed on the first side wall and the second side wall; a driven unit includes a driven rod, and one end of the driven rod is disposed to drive the fixing member a first rotating member and a second movable member are respectively located in the first and second slots and movable along the axis, the first movable member and the second movable member Each of the operating unit includes a set of sliding sleeves disposed outside the fixing member for interlocking the first movable member and the second movable member; a stroke control unit is disposed on the sliding portion Between the sleeve and the fixing member, the movement of the first movable member and the second movable member is controlled by the sliding sleeve; and a double-head tool unit includes a rotatably coupled by a radial shaft a base block installed between the two pivotal segments, and a first tool head and a second tool head extending along the axis; the first movable member and the second movable member are moved along the axis by the operating unit, and the double-head tool unit can be synchronously driven to move It can be rotated in the pull-out position or can not be rotated in the income position.
  2. The pivoting head changing tool set according to claim 1, wherein the stroke control unit comprises a long hole extending along the axis of the second side wall, and a radial insertion The second movable member extends into the blocked member of the elongated hole, and the elongated hole has a revenue dead point and a pull-out point in opposite directions.
  3. The pivoting head changing tool set according to claim 2, wherein the blocked member is a bolt locked to the sliding sleeve and the second movable member and extending into the elongated hole.
  4. The pivoting head changing tool set according to claim 1, further comprising a stroke positioning unit, comprising a first elastic member mounted on the first movable member, and being pushed by the first elastic member a first positioning bead, and an income positioning hole and a pull-out positioning hole disposed on the first side wall for the first positioning bead to enter the positioning position.
  5. The pivoting head changing tool set according to claim 4, further comprising an angular positioning unit comprising a second elastic member mounted on the base block of the double-head tool unit, and the second elastic member a second positioning bead that is pushed and pushed, and a plurality of positioning grooves disposed on the second movable member for the second positioning bead to enter the positioning position.
  6. The pivoting head changing tool set according to claim 1, wherein the driven unit further includes a connection radially inserted between the first side wall and the connecting seat and the second side wall. pin.
  7. The pivoting head changing tool set according to claim 1, wherein the first engaging groove is formed by a groove bottom surface and a two force receiving surface, the second groove is formed by a groove bottom surface and two force receiving portions. Face formation.
  8. The pivoting head changing tool set according to claim 7, wherein the fixing member further comprises a plurality of ribs disposed on a bottom surface of the grooves.
  9. The pivoting head changing tool set according to claim 1, wherein the sliding sleeve of the operating unit is sleeved between the interlocking section of the first movable member and the interlocking section of the second movable member and the fixing member The operating unit further includes a plurality of connecting elements mounted between the sliding sleeve and the two interlocking sections.
TW100141282A 2011-11-11 2011-11-11 Swing tool kit TWI412442B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW100141282A TWI412442B (en) 2011-11-11 2011-11-11 Swing tool kit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW100141282A TWI412442B (en) 2011-11-11 2011-11-11 Swing tool kit

Publications (2)

Publication Number Publication Date
TW201318790A TW201318790A (en) 2013-05-16
TWI412442B true TWI412442B (en) 2013-10-21

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Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4512693A (en) * 1982-12-27 1985-04-23 Swanson Carl A Reversible drill and drive tool holder
US4676703A (en) * 1986-04-28 1987-06-30 Swanson Carl A Reversible drill and drive tool holder
US20050031424A1 (en) * 2003-08-08 2005-02-10 Hernandez Hector Ray Reversible drill and drive tool
US6877937B2 (en) * 2002-11-19 2005-04-12 Chieh-Jen Hsiao Reversible drill/driver tool
TWI255754B (en) * 2005-04-18 2006-06-01 Stand Tools Entpr Co Ltd Changeable multi-headed tool
TWI264351B (en) * 2005-03-18 2006-10-21 Shiou-E Chen Connecting rod assembly
JP2007111790A (en) * 2005-10-18 2007-05-10 Vessel Industrial Co Ltd Bit holder
TWI319735B (en) * 2007-02-13 2010-01-21 Device having a function of quickly replacing a drill bit with a screwdriver head sleeve
TW201008721A (en) * 2008-08-29 2010-03-01 Bo-Shen Chen Quick-replaceable tool head commutator
TWM385451U (en) * 2009-12-07 2010-08-01 Shin Ying Entpr Co Ltd Connecting rod linking component capable of a quick changing screwing tool
TWM387748U (en) * 2010-03-31 2010-09-01 Yi-An Chen Combined lock fitting tool

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4512693A (en) * 1982-12-27 1985-04-23 Swanson Carl A Reversible drill and drive tool holder
US4676703A (en) * 1986-04-28 1987-06-30 Swanson Carl A Reversible drill and drive tool holder
US6877937B2 (en) * 2002-11-19 2005-04-12 Chieh-Jen Hsiao Reversible drill/driver tool
US20050031424A1 (en) * 2003-08-08 2005-02-10 Hernandez Hector Ray Reversible drill and drive tool
TWI264351B (en) * 2005-03-18 2006-10-21 Shiou-E Chen Connecting rod assembly
TWI255754B (en) * 2005-04-18 2006-06-01 Stand Tools Entpr Co Ltd Changeable multi-headed tool
JP2007111790A (en) * 2005-10-18 2007-05-10 Vessel Industrial Co Ltd Bit holder
TWI319735B (en) * 2007-02-13 2010-01-21 Device having a function of quickly replacing a drill bit with a screwdriver head sleeve
TW201008721A (en) * 2008-08-29 2010-03-01 Bo-Shen Chen Quick-replaceable tool head commutator
TWM385451U (en) * 2009-12-07 2010-08-01 Shin Ying Entpr Co Ltd Connecting rod linking component capable of a quick changing screwing tool
TWM387748U (en) * 2010-03-31 2010-09-01 Yi-An Chen Combined lock fitting tool

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