EP2030735B1 - Hand tool with replaceable function head - Google Patents

Hand tool with replaceable function head Download PDF

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Publication number
EP2030735B1
EP2030735B1 EP20080159951 EP08159951A EP2030735B1 EP 2030735 B1 EP2030735 B1 EP 2030735B1 EP 20080159951 EP20080159951 EP 20080159951 EP 08159951 A EP08159951 A EP 08159951A EP 2030735 B1 EP2030735 B1 EP 2030735B1
Authority
EP
European Patent Office
Prior art keywords
engaging
arms
driving member
engaged
hand tool
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.)
Not-in-force
Application number
EP20080159951
Other languages
German (de)
French (fr)
Other versions
EP2030735A2 (en
EP2030735A3 (en
Inventor
Arthur Wu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Proxene Tools Co Ltd
Original Assignee
Proxene Tools 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 Proxene Tools Co Ltd filed Critical Proxene Tools Co Ltd
Publication of EP2030735A2 publication Critical patent/EP2030735A2/en
Publication of EP2030735A3 publication Critical patent/EP2030735A3/en
Application granted granted Critical
Publication of EP2030735B1 publication Critical patent/EP2030735B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G1/00—Handle constructions
    • B25G1/06—Handle constructions reversible or adjustable for position
    • B25G1/063—Handle constructions reversible or adjustable for position for screwdrivers, wrenches or spanners
    • 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
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/0007—Connections or joints between tool parts
    • 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
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/0007—Connections or joints between tool parts
    • B25B23/0028—Angular adjustment means between tool head and handle

Definitions

  • the present invention relates to a hand tool with a replaceable driving member which is easily connected to or removed from the handle.
  • a conventional hand tool generally includes a handle and a driving member such as a wrench head or a box end, the driving member usually is integrally connected to the handle and cannot be replaced.
  • Some hand tools have a reception recess defined in the handle so as to receive a pivotable driving member, the reception recess requires a certain space which makes the hand tool difficult to insert into a narrow space.
  • U.S. Pat. No. 7,146,886 discloses a wrench with a replaceable driving member. However, the user has to pull the driving member to check the driving member is well secured or not, and this is not satisfied by the users.
  • a further conventional hand tool is disclosed in US 2,608,894 .
  • This hand tool comprises a driving member and a handle which are connected by a pin engaging into an engaging notch which is open at one end for fast release of the pin.
  • a driving member and a handle are connected by a pin engaging into an engaging notch which is open at one end for fast release of the pin.
  • the present invention intends to provide a hand tool with a replaceable driving member, the driving member and the handle are simply hooked to each other by a pin and the driving member can be pivoted about the pin to be operated in different angles.
  • the present invention relates to a hand tool according to independent claims 1, 3, 5 and 8.
  • the hand tool 1 comprises a handle 20 having a connection end 21 which includes two parallel arms 22 and a space defined between the two arms 22.
  • a first recess 23 is defined in an inner end of the space between the two arms 22 and a first engaging unit 40 is received in the first recess 23.
  • the first engaging unit 40 includes a spring 41 and a pawl member 42.
  • a driving member 10 such as a box end which includes a polygonal hole 11 and an insertion 12 extending from the driving member 10.
  • the insertion 12 includes an engaging notch 121 defined in an underside thereof and the insertion 12 is located in the space between the two arms 22.
  • the distal end of the insertion 12 includes teeth 122 defined therein.
  • a pin 30 extends through two respective through holes 221 in the two arms 22 and the engaging notch 121 of the insertion 12 so that the driving member 10 is pivotably connected between the two arms 22.
  • the pawl member 42 is engaged with one of the teeth 122 to position the driving member 10 at different angles.
  • a passage 123 is defined in a distal end of the insertion 12 and communicates with the engaging notch 121, a second engaging unit 50 is received in the passage 123.
  • the second engaging unit 50 includes a bead 51, a spring 52 which biases the bead 51 toward the engaging notch 121 and a seal member 53 which seals an opening defined by the passage 123 in the distal end of the insertion 12.
  • the bead 51 partially protrudes in the engaging notch 121 and is in contact with the pin 30 as shown in Fig. 2A .
  • a stop 124 extends inward from an inner periphery of the passage 123 so as to stop the bead 51 from disengaging from the passage 123.
  • Figs. 6, 6A , 7 and 7A show a second embodiment of the hand tool 1 wherein a second recess A1 is defined in an inside of the engaging notch 121 and communicates with the engaging notch 121.
  • the second recess A1 is located remote to a distal end of the insertion 12 and located in alignment with the passage 123.
  • a second engaging unit 50 is received in the second recess A1 and includes a bead 51 and a spring 52 which biases the bead 51 toward the engaging notch 121.
  • the bead 51 partially protrudes in the engaging notch 121 and is in contact with the pin 30.
  • a stop 124 extends inward from an inner periphery of the second recess A1 so as to stop the bead 51 from disengaging from the second recess A1.
  • Figs. 8-13 show a third embodiment of the hand tool 1 wherein the passage 123 and the second recess A1 are omitted, and a first groove B1 is defined in an inner periphery of the engaging notch 121.
  • a resilient clamp B2 is engaged with the first groove B1.
  • the pin 30 includes a second groove B4 with which the resilient clamp B2 is engaged.
  • the two distal ends of the resilient clamp B2 extend an angle.
  • Two blocks B3 extend from the inner periphery of the engaging notch 121 and are located at two ends of the first groove B1, the two distal ends of the resilient clamp B2 are engaged with the two blocks B3 when the resilient clamp B2 is engaged with the first groove B1.
  • Fig. 8-13 show a third embodiment of the hand tool 1 wherein the passage 123 and the second recess A1 are omitted, and a first groove B1 is defined in an inner periphery of the engaging notch 121.
  • a resilient clamp B2 is engaged with the first groove B1.
  • the resilient clamp B2 when the pin 30 is inserted in the engaging notch 121, the resilient clamp B2 is mounted to the outer periphery of the pin 30 so that the two distal ends of the resilient clamp B2 are lifted, and when the resilient clamp B2 is engaged with the second groove B4 in the outer periphery of the pin 30, the two distal ends of the resilient clamp B2 are lowered and engaged with the two blocks B3.
  • Figs. 16-17 show a fourth embodiment of the hand tool 1 and includes a handle 20 having a connection end 21 which includes two parallel arms 22 and a space defined between the two arms 22.
  • Each arm 22 has an engaging notch 121 defined in an underside thereof.
  • a first recess 23 is defined in an inner end of the space between the two arms 22 and a first engaging unit 40 is received in the first recess 23.
  • the first engaging unit 40 includes a spring 41 and a pawl member 42.
  • Two passages C2 are defined in two respective distal ends of the two arms 22 and communicate with the engaging notches 121.
  • Two second recesses C3 are define in two respective inner peripheries of the engaging notches 121 and located remote to the two respective distal ends of the two arms 22.
  • Two second engaging unit 50 are received in the second recesses C3 and each of the second engaging units 50 includes a bead 51 and a spring 52 which biases the bead 51 toward the engaging notch 121,
  • a driving member 10 such as a box end which includes a polygonal hole 11 and an insertion 12 extends from the driving member 10.
  • the insertion 12 is located in the space between the two arms 22 and includes a through hole C1.
  • the distal end of the insertion 12 includes teeth 122 defined therein.
  • a pin 30 is engaged with the two engaging notches 121 and extends through the through hole C1 in the insertion 12.
  • the pawl member 42 is engaged with one of the teeth 122.
  • the two beads 51 partially protrude in the engaging notches 121 and are in contact with the pin 30.
  • the pin 30 includes two serrated surfaces C4 defined in an outer periphery thereof and the serrated surfaces C4 are located within the through hole C1 of the insertion 12 so as to increase the friction between the pin 30 and the through hole C1.
  • Another driving member 10 such as an open end wrench head shown in Fig. 18 can be easily connected to the handle 20.
  • Fig. 19 shows that two respective axes of the two engaging notches 121 are inclined relative to an axis of the connection end 21 of the handle 20. As shown in Fig. 20 , when a user holds the handle 20 the inclined engaging notches 121 are orientated to be easily engaged with the pin 30.
  • Figs. 21-23 show a fifth embodiment of the hand tool 1, wherein two passages C2 are defined in two respective distal ends of the two arms 22 and communicate with the engaging notches 121.
  • Two second recesses C3 are defined in two respective inner peripheries of the engaging notches 121 and located remote to the two respective distal ends of the two arms 22.
  • Two third engaging unit 50 are received in the second recesses C3 and each of the second engaging units 50 includes a rod E1 and a spring 52 which biases the bead 51 toward the engaging notch 121.
  • the two rods E1 partially protrude in the engaging notches 121 and are in contact with the pin 30.
  • a top hole E4 is defined in a top of the connection end 21 and communicates with the first recess 23 and the two second recesses C3.
  • a flange E2 extends inward from an inner periphery of the top hole E4.
  • An operation unit E is engaged with the top hole E4 and includes a horizontal thumb plate E5 and an operation plate E51 which extends perpendicularly from the thumb plate E5.
  • the operation plate E51 includes a recess defined in a lower edge thereof and the pawl member 42 is movably engaged with the recess.
  • the two distal ends of the operation plate E51 are engaged with two respective notches E11 defined in the two rods E1.
  • a cover E3 is connected on the flange E2 and the thumb plate E5 is movably located above the cover E3.
  • the two rods E1 are retracted into the second recesses C3 when the thumb plate E5 and the operation plate E51 are moved in a direction away from the driving member 10. By this way, the driving member 10 can be easily disconnected from the connection end 21 of the handle 20.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Manipulator (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Manufacturing Of Electrical Connectors (AREA)

Description

    BACKGROUND OF THE INVENTION (1) FIELD OF THE INVENTION
  • The present invention relates to a hand tool with a replaceable driving member which is easily connected to or removed from the handle.
    • (2) DESCRIPTION OF THE PRIOR ART
  • A conventional hand tool generally includes a handle and a driving member such as a wrench head or a box end, the driving member usually is integrally connected to the handle and cannot be replaced. Some hand tools have a reception recess defined in the handle so as to receive a pivotable driving member, the reception recess requires a certain space which makes the hand tool difficult to insert into a narrow space. U.S. Pat. No. 7,146,886 discloses a wrench with a replaceable driving member. However, the user has to pull the driving member to check the driving member is well secured or not, and this is not satisfied by the users.
  • A further conventional hand tool is disclosed in US 2,608,894 . This hand tool comprises a driving member and a handle which are connected by a pin engaging into an engaging notch which is open at one end for fast release of the pin. However such connection between a driving member and a handle is not very reliable.
  • The present invention intends to provide a hand tool with a replaceable driving member, the driving member and the handle are simply hooked to each other by a pin and the driving member can be pivoted about the pin to be operated in different angles.
    • SUMMARY OF THE INVENTION
  • The present invention relates to a hand tool according to independent claims 1, 3, 5 and 8.
  • The present invention will become more obvious from the following description when taken in connection with the accompanying drawings which show, for purposes of illustration only, a preferred embodiment in accordance with the present invention.
    • BRIEF DESCRIPTION OF THE DRAWINGS
    • Fig. 1 is an exploded view to show a first embodiment of the hand tool;
    • Fig. 1A is an enlarged view to show the driving member and the engaging notch in the insertion;
    • Fig. 2 is a partial side cross sectional view to show the hand tool;
    • Fig. 2A is an enlarged partial cross sectional view to show the bead is pushed to be in contact with the pin;
    • Fig. 3 is a perspective view to show the first embodiment of the hand tool;
    • Fig. 4 is a partial side cross sectional view to show the driving member is pivoted relative to the connection end of the hand tool;
    • Fig. 5 is a perspective view to show another driving member is connected to the handle of the hand tool;
    • Fig. 6 is an exploded view to show a second embodiment of the hand tool;
    • Fig. 6A is an enlarged view to show the driving member and the engaging notch in the insertion of the second embodiment of the hand tool;
    • Fig. 7 is a partial side cross sectional view to show the hand tool in Fig. 6;
    • Fig. 7A is an enlarged partial cross sectional view to show the bead is pushed to be in contact with the pin and the bead is stopped by the stop 124 in the second recess;
    • Fig. 8 is an exploded view to show a third embodiment of the hand tool;
    • Fig. 9 shows the positions of the two distal ends of the resilient clamp in the third embodiment of the hand tool;
    • Fig. 10 shows that the two distal ends of the resilient clamp in Fig. 9 are engaged with two blocks;
    • Fig. 11 is a partial cross sectional view to show that the resilient clamp is lifted when mounted on the pin;
    • Fig. 12 is a partial cross sectional view to show that the resilient clamp is lowered when engaged with the first groove in the pin;
    • Fig. 13 is a top view to show the hand tool in Fig. 8;
    • Fig. 14 is an exploded view to show a fourth embodiment of the hand tool;
    • Fig. 15 is a perspective view of the fourth embodiment of the hand tool;
    • Fig. 16 is a partial side cross sectional view to show the hand tool in Fig. 14;
    • Fig. 17 is a top cross sectional view to show the hand tool in Fig. 14;
    • Fig. 18 shows that another driving member is used on the hand tool in Fig. 14;
    • Fig. 19 shows that the engaging notch of in the connection end of the handle is inclined;
    • Fig. 20 shows that the inclined engaging notch is convenient to be connected with the pin and the driving member;
    • Fig. 21 is an exploded view to show a fifth embodiment of the hand tool;
    • Fig. 22 is a side view to show the fifth embodiment of the hand tool wherein the two rods are engaged with the teeth of the driving member, and
    • Fig. 23 shows that the two rods are retracted into the second recesses in the handle.
    DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • Referring to Figs. 1, 1A, 2, 2A, 3 and 4, the hand tool 1 comprises a handle 20 having a connection end 21 which includes two parallel arms 22 and a space defined between the two arms 22. A first recess 23 is defined in an inner end of the space between the two arms 22 and a first engaging unit 40 is received in the first recess 23. The first engaging unit 40 includes a spring 41 and a pawl member 42. A driving member 10 such as a box end which includes a polygonal hole 11 and an insertion 12 extending from the driving member 10. The insertion 12 includes an engaging notch 121 defined in an underside thereof and the insertion 12 is located in the space between the two arms 22. The distal end of the insertion 12 includes teeth 122 defined therein.
  • A pin 30 extends through two respective through holes 221 in the two arms 22 and the engaging notch 121 of the insertion 12 so that the driving member 10 is pivotably connected between the two arms 22. The pawl member 42 is engaged with one of the teeth 122 to position the driving member 10 at different angles.
  • A passage 123 is defined in a distal end of the insertion 12 and communicates with the engaging notch 121, a second engaging unit 50 is received in the passage 123. The second engaging unit 50 includes a bead 51, a spring 52 which biases the bead 51 toward the engaging notch 121 and a seal member 53 which seals an opening defined by the passage 123 in the distal end of the insertion 12. The bead 51 partially protrudes in the engaging notch 121 and is in contact with the pin 30 as shown in Fig. 2A. A stop 124 extends inward from an inner periphery of the passage 123 so as to stop the bead 51 from disengaging from the passage 123.
  • It is easily to replace another driving member such as the open end wrench head shown in Fig. 5 by applying a force in a first direction to the connection end 21 and applying a force in opposite direction to the driving member 10, the pin 30 is disengaged from the engaging notch 121.
  • Figs. 6, 6A, 7 and 7A show a second embodiment of the hand tool 1 wherein a second recess A1 is defined in an inside of the engaging notch 121 and communicates with the engaging notch 121. The second recess A1 is located remote to a distal end of the insertion 12 and located in alignment with the passage 123. A second engaging unit 50 is received in the second recess A1 and includes a bead 51 and a spring 52 which biases the bead 51 toward the engaging notch 121. The bead 51 partially protrudes in the engaging notch 121 and is in contact with the pin 30. A stop 124 extends inward from an inner periphery of the second recess A1 so as to stop the bead 51 from disengaging from the second recess A1.
  • Figs. 8-13 show a third embodiment of the hand tool 1 wherein the passage 123 and the second recess A1 are omitted, and a first groove B1 is defined in an inner periphery of the engaging notch 121. A resilient clamp B2 is engaged with the first groove B1. The pin 30 includes a second groove B4 with which the resilient clamp B2 is engaged. The two distal ends of the resilient clamp B2 extend an angle. Two blocks B3 extend from the inner periphery of the engaging notch 121 and are located at two ends of the first groove B1, the two distal ends of the resilient clamp B2 are engaged with the two blocks B3 when the resilient clamp B2 is engaged with the first groove B1. As shown in Fig. 11, when the pin 30 is inserted in the engaging notch 121, the resilient clamp B2 is mounted to the outer periphery of the pin 30 so that the two distal ends of the resilient clamp B2 are lifted, and when the resilient clamp B2 is engaged with the second groove B4 in the outer periphery of the pin 30, the two distal ends of the resilient clamp B2 are lowered and engaged with the two blocks B3.
  • Figs. 16-17 show a fourth embodiment of the hand tool 1 and includes a handle 20 having a connection end 21 which includes two parallel arms 22 and a space defined between the two arms 22. Each arm 22 has an engaging notch 121 defined in an underside thereof. A first recess 23 is defined in an inner end of the space between the two arms 22 and a first engaging unit 40 is received in the first recess 23. The first engaging unit 40 includes a spring 41 and a pawl member 42. Two passages C2 are defined in two respective distal ends of the two arms 22 and communicate with the engaging notches 121. Two second recesses C3 are define in two respective inner peripheries of the engaging notches 121 and located remote to the two respective distal ends of the two arms 22. Two second engaging unit 50 are received in the second recesses C3 and each of the second engaging units 50 includes a bead 51 and a spring 52 which biases the bead 51 toward the engaging notch 121,
  • A driving member 10 such as a box end which includes a polygonal hole 11 and an insertion 12 extends from the driving member 10. The insertion 12 is located in the space between the two arms 22 and includes a through hole C1. The distal end of the insertion 12 includes teeth 122 defined therein.
  • A pin 30 is engaged with the two engaging notches 121 and extends through the through hole C1 in the insertion 12. The pawl member 42 is engaged with one of the teeth 122. The two beads 51 partially protrude in the engaging notches 121 and are in contact with the pin 30. The pin 30 includes two serrated surfaces C4 defined in an outer periphery thereof and the serrated surfaces C4 are located within the through hole C1 of the insertion 12 so as to increase the friction between the pin 30 and the through hole C1. Another driving member 10 such as an open end wrench head shown in Fig. 18 can be easily connected to the handle 20.
  • Fig. 19 shows that two respective axes of the two engaging notches 121 are inclined relative to an axis of the connection end 21 of the handle 20. As shown in Fig. 20, when a user holds the handle 20 the inclined engaging notches 121 are orientated to be easily engaged with the pin 30.
  • Figs. 21-23 show a fifth embodiment of the hand tool 1, wherein two passages C2 are defined in two respective distal ends of the two arms 22 and communicate with the engaging notches 121. Two second recesses C3 are defined in two respective inner peripheries of the engaging notches 121 and located remote to the two respective distal ends of the two arms 22. Two third engaging unit 50 are received in the second recesses C3 and each of the second engaging units 50 includes a rod E1 and a spring 52 which biases the bead 51 toward the engaging notch 121. The two rods E1 partially protrude in the engaging notches 121 and are in contact with the pin 30. A top hole E4 is defined in a top of the connection end 21 and communicates with the first recess 23 and the two second recesses C3. A flange E2 extends inward from an inner periphery of the top hole E4. An operation unit E is engaged with the top hole E4 and includes a horizontal thumb plate E5 and an operation plate E51 which extends perpendicularly from the thumb plate E5. The operation plate E51 includes a recess defined in a lower edge thereof and the pawl member 42 is movably engaged with the recess. The two distal ends of the operation plate E51 are engaged with two respective notches E11 defined in the two rods E1. A cover E3 is connected on the flange E2 and the thumb plate E5 is movably located above the cover E3.
  • The two rods E1 are retracted into the second recesses C3 when the thumb plate E5 and the operation plate E51 are moved in a direction away from the driving member 10. By this way, the driving member 10 can be easily disconnected from the connection end 21 of the handle 20.

Claims (9)

  1. A hand tool (1) comprising:
    - a handle (20) having a connection end (21) which includes two parallel arms (22) and a space defined between the two arms (22);
    - a driving member (10) having an insertion (12) which includes an engaging notch (121) defined in an underside thereof, the insertion (12) located in the space between the two arms (22); and
    - a pin (30) extending through the two arms (22) and the engaging notch (121) of the insertion (12),
    wherein the engaging notch (121) has an open end formed on the bottom of the insertion (12) of the driving member (10) for engaging/disengaging the driving member (10) with/from the handle (20), such that the driving member (10) is replaced easily,
    wherein a first recess (23) is defined in an inner end of the space between the two arms (22) and a first engaging unit (40) is received in the first recess (23), the first engaging unit (40) includes a spring (41) and a pawl member (42) which is engaged with a distal end of the insertion (12) of the driving member (10), and
    wherein a passage (123) is defined in the distal end of the insertion (12) and communicates with the engaging notch (121), a second engaging unit (50) is received in the passage (123), the second engaging unit (50) includes a bead (51), a spring (52) which biases the bead (51) toward the engaging notch (121) and a seal member (53) which seals an opening defined by the passage (123) in the distal end of the insertion, the bead (51) partially protrudes in the engaging notch (121) and is in contact with the pin (30).
  2. The hand tool (1) as claimed in claim 1, wherein the distal end of the insertion (12) includes teeth (122) defined therein and the pawl member (42) is engaged with one of the teeth (122).
  3. A hand tool (1) comprising:
    - a handle (20) having a connection end (21) which includes two parallel arms (22) and a space defined between the two arms (22), each arm having an engaging notch (121) defined in an underside thereof;
    - a driving member (10) having an insertion (12) which is located in the space between the two arms (22) and including a through hole (C1); and
    - a pin (30) engaged with the two engaging notches (121) and extending through the through hole (C1) in the insertion (12),
    wherein the engaging notch (121) has an open end formed on the bottom of the arm of the handle (20) for engaging/disengaging the handle (20) with/from the driving member (10), such that the driving member (10) is replaced easily,
    wherein a first recess (23) is defined in an inner end of the space between the two arms (22) and a first engaging unit (40) is received in the first recess (23), the first engaging unit (40) includes a spring (41) and a pawl member (42) which is engaged with a distal end of the insertion (12) of the driving member (10), and
    wherein two passages (C2) are defined in two respective distal ends of the two arms (22) and communicate with the engaging notches (121), two second recesses (C3) are defined in two respective inner peripheries of the engaging notches (121) and located remote to the two respective distal ends of the two arms (22), two third engaging units are received in the second recesses (C3) and each of the second engaging units (50) includes a rod (E1) and a spring (52) which biases the bead (51) toward the engaging notch (121), the two rods (E1) partially protrude in the engaging notches (121) and are in contact with the pin (30), a top hole (E4) is defined in a top of the connection end (21) and communicates with the first recess (23) and the two second recesses (C3), a flange (E2) extends inward from an inner periphery of the top hole (E4), an operation unit is engaged with the top hole (E4) and includes a horizontal thumb plate (E5) and an operation plate (E51) which extends perpendicularly from the thumb plate (E5), the operation plate (E51) includes a recess defined in a lower edge thereof and the pawl member (42) is movably engaged with the recess, the two distal ends of the operation plate (E51) are engaged with two respective notches (E11) defined in the two rods (E1), a cover (E3) is connected on the flange (E2) and the thumb plate (E5) is movably located above the cover (E3), the two rods (E1) are retracted into the second recesses (C3) when the thumb plate (E5) and the operation plate (E51) are moved in a direction away from the driving member (10).
  4. The hand tool (1) as claimed in claim 3, wherein the distal end of the insertion (12) includes teeth (122) defined therein and the pawl member (42) is engaged with one of the teeth (122).
  5. A hand tool (1) comprising:
    - a handle (20) having a connection end (21) which includes two parallel arms (22) and a space defined between the two arms (22), each arm having an engaging notch (121) defined in an underside thereof;
    - a driving member (10) having an insertion (12) which is located in the space between the two arms (22) and including a through hole (C1); and
    - a pin (30) engaged with the two engaging notches (121) and extending through the through hole (C1) in the insertion (12),
    wherein the engaging notch (121) has an open end formed on the bottom of the arm of the handle (20) for engaging/disengaging the handle (20) with/from the driving member (10), such that the driving member (10) is replaced easily, and
    wherein two passages (C2) are defined in two respective distal ends of the two arms (22) and communicate with the engaging notches (121), two second recesses (C3) are defined in two respective inner peripheries of the engaging notches (121) and located remote to the two respective distal ends of the two arms (22), two second engaging units (50) are received in the second recesses (C3) and each of the second engaging units (50) includes a bead (51) and a spring (52) which biases the bead (51) toward the engaging notch (121), the two beads (51) partially protrude in the engaging notches (121) and are in contact with the pin (30).
  6. The hand tool (1) as claimed in claim 5, wherein the pin (30) includes two serrated surfaces (C4) defmed in an outer periphery thereof and the serrated surfaces (C4) are located within the through hole (C1) of the insertion (12).
  7. The hand tool (1) as claimed in claim 5, wherein two respective axes of the two engaging notches (121) are inclined relative to an axis of the connection end (21) of the handle (20).
  8. A hand tool (1) comprising:
    - a handle (20) having a connection end (21) which includes two parallel arms (22) and a space defined between the two arms (22);
    - a driving member (10) having an insertion (12) which includes an engaging notch (121) defined in an underside thereof, the insertion (12) located in the space between the two arms (22); and
    - a pin (30) extending through the two arms (22) and the engaging notch (121) of the insertion (12),
    wherein the engaging notch (121) has an open end formed on the bottom of the insertion (12) of the driving member (10) for engaging/disengaging the driving member (10) with/from the handle (20), such that the driving member (10) is replaced easily, and
    wherein a first groove (B1) is defined in an inner periphery of the engaging notch (121) and a resilient clamp (B2) is engaged with the first groove (B1), the pin (30) includes a second groove (B4) with which the resilient clamp (B2) is engaged.
  9. The hand tool (1) as claimed in claim 8, wherein two blocks (B3) extend from the inner periphery of the engaging notch (121) and are located at two ends of the first groove (B1), the resilient clamp (B2) includes two distal ends which are engaged with the two blocks (B3) when the resilient clamp (B2) is engaged with the first groove (B1).
EP20080159951 2007-08-31 2008-07-08 Hand tool with replaceable function head Not-in-force EP2030735B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2007101462830A CN101104258B (en) 2007-08-31 2007-08-31 Spanner capable of quick changing driving head

Publications (3)

Publication Number Publication Date
EP2030735A2 EP2030735A2 (en) 2009-03-04
EP2030735A3 EP2030735A3 (en) 2009-03-11
EP2030735B1 true EP2030735B1 (en) 2015-01-28

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EP20080159951 Not-in-force EP2030735B1 (en) 2007-08-31 2008-07-08 Hand tool with replaceable function head

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EP (1) EP2030735B1 (en)
JP (1) JP4834697B2 (en)
CN (1) CN101104258B (en)
AU (1) AU2008203045B2 (en)
CA (1) CA2637754C (en)

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DE4037237A1 (en) * 1990-11-23 1992-05-27 Bosch Gmbh Robert METHOD FOR OPERATING A DRIVE UNIT CONSISTING OF INTERNAL COMBUSTION ENGINE AND AUTOMATIC GEARBOX
CN102413784B (en) * 2009-08-05 2014-07-16 奥林巴斯医疗株式会社 Torque wrench and ultrasonic surgery device
CN102241004A (en) * 2010-05-11 2011-11-16 胡厚飞 Electronic torque spanner
US8322764B2 (en) 2010-06-11 2012-12-04 Mag-Lok Tools, Inc. Modular long handled tool component system
EP3536460B1 (en) * 2018-03-09 2021-04-21 Stanley Black & Decker MEA FZE Holder for holding a replaceable part of a tool
CN113386075B (en) * 2020-03-13 2023-02-03 越崎企业股份有限公司 Pneumatic spanner

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US2608894A (en) * 1951-12-14 1952-09-02 Jr Herbert G Miller Wrench handle detachably connectible to rigid-jaw type wrench head
FR1212685A (en) * 1959-01-08 1960-03-25 Stefanox Ets Flat and socket wrench with swivel and interchangeable clamping elements
JPS61144972A (en) * 1984-12-19 1986-07-02 Hitachi Ltd Image signal processor
JPH0516172Y2 (en) * 1989-07-04 1993-04-28
JPH0340070A (en) * 1989-07-06 1991-02-20 Mitsubishi Electric Corp Data base retrieving device
JPH0720174Y2 (en) * 1989-11-16 1995-05-15 有限会社八木コンサルタント Automatic penetration tester
JPH03130536U (en) * 1990-04-13 1991-12-27
US20030188607A1 (en) * 2002-04-09 2003-10-09 Chih-Ching Hsien Orientation adjustable spanner
TWI262118B (en) * 2003-01-28 2006-09-21 Hou-Fei Hu Structure improvement of head-rotatable wrench
TWI271275B (en) * 2005-11-09 2007-01-21 Proxene Tools Co Ltd Wrench which can change driving head rapidly and can be bended to various angles
US7146886B1 (en) * 2005-12-30 2006-12-12 Proxene Tools Co., Ltd. Wrench capable of quick replacement of swivel driving members

Also Published As

Publication number Publication date
CA2637754C (en) 2012-01-10
CA2637754A1 (en) 2009-02-28
JP2009056580A (en) 2009-03-19
CN101104258B (en) 2010-08-25
JP4834697B2 (en) 2011-12-14
AU2008203045A1 (en) 2009-03-19
CN101104258A (en) 2008-01-16
EP2030735A2 (en) 2009-03-04
EP2030735A3 (en) 2009-03-11
AU2008203045B2 (en) 2010-12-16

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