CA1227958A - Wrench - Google Patents
WrenchInfo
- Publication number
- CA1227958A CA1227958A CA000434888A CA434888A CA1227958A CA 1227958 A CA1227958 A CA 1227958A CA 000434888 A CA000434888 A CA 000434888A CA 434888 A CA434888 A CA 434888A CA 1227958 A CA1227958 A CA 1227958A
- Authority
- CA
- Canada
- Prior art keywords
- jaw
- moving jaw
- moving
- handle member
- actuating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B13/00—Spanners; Wrenches
- B25B13/10—Spanners; Wrenches with adjustable jaws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B13/00—Spanners; Wrenches
- B25B13/10—Spanners; Wrenches with adjustable jaws
- B25B13/12—Spanners; Wrenches with adjustable jaws the jaws being slidable
- B25B13/14—Spanners; Wrenches with adjustable jaws the jaws being slidable by rack and pinion, worm or gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B13/00—Spanners; Wrenches
- B25B13/10—Spanners; Wrenches with adjustable jaws
- B25B13/12—Spanners; Wrenches with adjustable jaws the jaws being slidable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B13/00—Spanners; Wrenches
- B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
- Clamps And Clips (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A wrench including a handle member, a head member having a stationary jaw and a moving jaw, a pivot for pivotally supporting the head member at one end part of the handle member, and an actuating member for actuating the moving jaw to move towards the stationary jaw, the moving jaw having an inhibiting means that engages an engaging part provided at one end part of the handle member in the normal state for inhibiting the moving jaw from moving away from the stationary jaw, wherein when the handle member is turned at a fixed angle in the direction opposite to the screwing direction while engaging the head member with an object being screwed, the inhibiting means disengages the engaging part and thus the moving jaw is allowed to move in the direction parting from the stationary jaw against the actuating force generated from the actuating member.
A wrench including a handle member, a head member having a stationary jaw and a moving jaw, a pivot for pivotally supporting the head member at one end part of the handle member, and an actuating member for actuating the moving jaw to move towards the stationary jaw, the moving jaw having an inhibiting means that engages an engaging part provided at one end part of the handle member in the normal state for inhibiting the moving jaw from moving away from the stationary jaw, wherein when the handle member is turned at a fixed angle in the direction opposite to the screwing direction while engaging the head member with an object being screwed, the inhibiting means disengages the engaging part and thus the moving jaw is allowed to move in the direction parting from the stationary jaw against the actuating force generated from the actuating member.
Description
9~8 This invention relates to a wrench, in particular relates to a wrench that is capable of turning an object continuously in the same direction when moving a handle member in both directions, namely in the screwing on direction and the direction opposite thereto or vice versa, while keeping engagement by a stationary jaw and a moving jaw the object is such as a nut or bolt head and the wrench functions as a ratchet wrench.
In a conventional wrench, the handle member is constructed integrally with the head member having the stationary jaw and the moving jaw. Due to this, when the handle member is turned in one direction with the stationary jaw and the moving jaw of the head member in contact with the object, the object is screwed on or tightened, but when the handle member is turned in the direction opposite thereto, the object is screwed off or loosened. In order that the screwing operation may be conducted continuously, accordingly, it is necessary to remove the head member from the object being screwed on and change the engagement of stationary and moving jaws with the object. Therefore, the conventional wrench is defective in that continuous screwing is available with difficulty and the work efficiency is not good. In view of this fact, there has been proposed, wrenches designed to screw turn an object continuously in one direction by repeatedly turning the handle member in both directions, namely in the screwing on direction and the direction Opposite thereto, while keeping engagement of the stationary jaw and the vying jaw with the object being turned without removing the head member each time from the object However, such ratchet wrenches are defective in that they are expensive because their structure is complicated and usually of a large size.
It is an object of this invention to provide a wrench that can eliminate the drawbacks inherent in the conventional wrenches, can rotate an object being screwed continuously as the ratchet wrench does, and further can be manufactured cheaply because its structure is simple.
~2~9~
cording to this invention, the above object can be achieved by providing a wrench including a handle member, a head member having a stationary jaw and a moving jaw, a pivot for pivotal supporting the head member at one end part of the handle member, and an actuating member for actuating the moving jaw to move towards the stationary jaw, the moving jaw having an inhibiting means that engages an engaging part provided at one end part of the handle member in the normal state for inhibiting the vying jaw from moving away from the stationary law, such that when the handle member is turned at a fixed angle in the direction opposite to the screwing direction while retaining engagement with said head member with an object being screwed, the inhibiting means disengages from the engaging part and thus the vying jaw is allowed to move in the direction parting from the stationary jaw against the actuating force generated from the actuating member.
The invention also provides a wrench that can control the engaging distance between the stationary jaw and the moving jaw and so is rapidly applicable to different sized objects being screwed.
The above object can be achieved by the embodiment of this invention wherein a working means supported movably on the moving jaw is employed as the inhibiting means, and the working means is designed to include an adjustable screw thread that meshes with the teeth of the moving jaw and an inhibiting means that is supported on this adjustable thread and can engage and disengage the engaging part of the handle member.
IN THE ATTACHED DRAWINGS:
Fig. 1 is a perspective view of a first embodiment of a wrench according to this invention.
Fig. 2 is a partly sectioned main part plan view illustrating the operating state of the wrench of Fig. 1.
Fig. 3 it a partly sectioned main part front view of the wrench of Fig. 1.
aye Fig. 4 is a main part plan view illustrating the operating state of the wrench of Fig. 1.
Fig. 5 is a main part plan view illustrating a deified embodiment of the wrench of Fig. 1.
Fig. 6 is a perspective view of a second embodiment of the wrench according to this invention.
Fig. 7 is a main part exploded perspective view illustrating disassembled constituting members of the wrench of Fig. 6.
Figs. 8 and 9 are partly sectioned main part plan views illustrating different operating states of the wrench of Fig. 6.
Referring to the attached drawings, in Figs. 1 to 5, there is shown a first embodiment of a wrench according to this invention. This wrench 1 includes a handle member 2 and a head member 3. This head member 3 has a stationary jaw 4 and a moving jaw 5, and is rotatable supported on a support plate 6 attached to one end part of handle member 2 by a pivot 7. On the side of the pivot 7 of the head member 3 there is formed a location groove 8.
In this groove 8 there is fitted the upper half of the plate 6 on the side of pivot 7. In the head member 3 opposed to the lower half of plate 6 there is formed a slide groove 9. In this groove 9 there is slid ably fitted a base part 2Q 10 of the moving jaw 5. This base part 10 is substantially thinner than the moving jaw 5. On the end surface of base part 10 in the direction opposed to the moving jaw 5 there is formed an inhibiting means 11 whose thickness is substantially the same as that of the vying jaw 5. This inhibiting means 11 it designed to engage an engaging part 12 that has been formed at the lower half of the fixing plate 6, in the normal state, and inhibit the vying jaw 5 from moving away from the stationary jaw 4. At the central part of the head member 3 there is formed a hollow 13 in substantially parallel with the fitting groove 8, one end of said hollow 13 opening in the slide groove 9. A spring 795~3 seat 14 is disposed in the hollow 13. Between the spring seat 14 and the moving jaw 5 facing the hollow 13 there is interposed a spring 15 that acts to actuate the moving jaw S to move towards the stationary Jaw 4. Fig. 5 shows a modification of the aforesaid embodiment. According to this modified embodiment, a spring bearing plate 17, whose section is channel-shaped, is attached to the lower end surface of the head member 3 where the slide groove 9 has been formed. Between the spring bearing plate 17 and the base part 10 of the moving jaw 5 there is interposed a spring 18 that actuates the moving jaw 5 to move toward the stationary jaw 4. The upper half of the plate 6 is substantially thinner than the lower half thereof because stepped parts 19 have been formed on both sides of the upper half, and an inhibiting means 20 is formed to be larger than the inhibiting means 11.
Reference will be made to the operation of the above embodiment as follows.
As shown in Fig. 2, when screwing an object, namely a nut a, the handle member 2 is turned downwards in the direction of the arrow while engaging the stationary jaw 4 and vying jaw 5 of the head member 3 with the flat a of nut a. In this normal state, the inhibiting means 11 formed at the base part 10 of the vying jaw 5 engages the engaging part 12 of the plate 6 so that the moving jaw 5 is inhibited from moving away from the stationary jaw 4. Due to this, the turning force of the handle member 2 is exerted upon the stationary jaw 4 and the moving jaw 5 so that the nut a is turned and screwed on.
When further turning the nut a, as shown in Fig. 4, the handle member 2 is turned upwards in the direction of the arrow at such a fixed angle as the end face 21 of the plate 6 on the side of pivot 7 may abut the bottom of the fitting groove 8 formed in the head member 3 while still engaging the stationary jaw 4 and moving jaw 5 with the nut a as mentioned previously. This turning disengages the engaging part 12 from the inhibiting means 11 and 79~
exerts, on the moving jaw 5, the reaction force generated at the time when turning the handle member 2 further upwards. As the result of this, the moving jaw 5 it allowed to Eve against the actuating force of the spring 15 thereby to loosen the engagement of the nut a When keeping on turning the handle member 2 upwards with the nut a as the center, the stationary jaw 4 and moving jaw 5 pass over the corner a of the nut a. Since the moving jaw 5 has been actuated to move toward the stationary jaw 4 by the action of the spring 15 at this time, directly after the completion of this movement, the stationary jaw and moving jaw engage the next flat a of the nut a. Thereafter, when turning the handle member 2 downwards at a fixed angle, as shown in Fig. 2, the engaging part 12 of the fitting plate 6 engages the inhibiting means 11 of the moving jaw 5 again and the end face 21 of the plate 6 is separated from the bottom of the fitting groove 8, whereby the original normal state is restored.
The nut a is screwed on by turning the handle member 2 downwards again, as mentioned previously, from this normal state.
As mentioned above, the nut a is screwed up gradually and rigidly by repeatedly turning the handle member 2 in both directions, namely downwards and upwards, while engaging the stationary jaw 4 and moving jaw 5 of the head member 3 with the nut a. Accordingly, this wrench 1 can screw on the nut a continuously by turning repeatedly without the trouble of removing the head member 3 each time from the nut a inspire of its simple structure, and can enhance the work efficiency markedly. In addition, this wrench 1 can be manufactured cheaply because its structure is simple.
In Figs. 6 to 9, there is shown a second embodiment of a wrench according to this invention. This wrench 31 is commonly named a Lobster adjustable wrench and is basically different from the above mentioned wrench in that the engaging distance between a stationary jaw 34 and a moving jaw 35 that engages the nut a can be set properly.
In the wrench 31, a stepped part 37 is formed at the connecting base part of each surface of a support plate 36. In a head member 33 there is formed a location groove 38 that fits up to the location adjacent to the stepped part 37 of the plate 36~ A slide groove 39 is formed in the head member 33 in a direction opposite to groove 38. In groove 39 there is slid ably fitted a base part 40 of the moving jaw 35.
Base part 40 is substantially thinner than the moving jaw 35, and is provided with teeth 41 in the longitudinal direction. An adjusting screw 42 meshes the teeth 41 so that the engaging distance between the stationary jaw 34 and the moving jaw 35 may be arranged properly by sliding the base part 40 along the slide groove 39 by the action of adjusting screws 42. The adjust screw 42 is received into a rectangular opening 43 formed in the head member 32 in the manner of being insert-fitted in a guide rod 44. This guide rod 44 is designed so that one end part is screw-attached to the head member 32 and another end part is located in a slide groove 45 formed in communication with the fitting groove 38. In the groove 45 there is slid ably fitted a slider 46 that is insert-fitted to another end part of the guide rod 44 adjoining the adjusting screws 42. The slider 46 is provided with an inhibiting means 49 that is inhibited from rotating by slid ably fitting in the fitting groove 3B
and operates to inhibit the moving jaw 35 from moving away from the stationary jaw 34 by engaging an engaging part 48 in the normal state, the engaging part 48 being formed at the end part of the fitting plate 36 in the direction opposite to a pivot 47. Furthermore, the slider 46 has a recessed part 50.
Between the recessed part 50 and an engaging collar 51, provided at the edge of another end part of the guide rod 44, there is interposed a spring 52 that actuates the slider 46 to move the moving jaw 35 through the adjusting screws 42 toward the stationary jaw 34.
Reference numeral 53 denotes a spring interposed between plate 6 and the i 9~8 head member 3.
In this embodiment, as shown in Figs. 8 and 9, when a reaction force is exerted on the moving jaw 35, the adjusting screw 42 and the slider 46 move on the guide rod 44 towards the engaging collar 51 against the actuating force of the spring 52 together with the vying jaw 35, and when the stationary jaw 34 and the moving jaw 35 have passed over the opposite angle a of the nut a, the adjusting screw and the slider move in the direction opposite thereto together with the moving jaw 35. This embodiment is different in these points from the above mentioned embodiment, but those embodiments are substantially identical in the other points. Therefore, detailed explanations will be omitted. In this embodiment, furthermore, when screwing up different-sized nuts a, the adjust screw 42 is turned for moving the moving jaw 35 away from the stationary jaw 34 and thus the engaging distance between the stationary jaw 34 and the moving jaw 35 is set correctly.
I
In a conventional wrench, the handle member is constructed integrally with the head member having the stationary jaw and the moving jaw. Due to this, when the handle member is turned in one direction with the stationary jaw and the moving jaw of the head member in contact with the object, the object is screwed on or tightened, but when the handle member is turned in the direction opposite thereto, the object is screwed off or loosened. In order that the screwing operation may be conducted continuously, accordingly, it is necessary to remove the head member from the object being screwed on and change the engagement of stationary and moving jaws with the object. Therefore, the conventional wrench is defective in that continuous screwing is available with difficulty and the work efficiency is not good. In view of this fact, there has been proposed, wrenches designed to screw turn an object continuously in one direction by repeatedly turning the handle member in both directions, namely in the screwing on direction and the direction Opposite thereto, while keeping engagement of the stationary jaw and the vying jaw with the object being turned without removing the head member each time from the object However, such ratchet wrenches are defective in that they are expensive because their structure is complicated and usually of a large size.
It is an object of this invention to provide a wrench that can eliminate the drawbacks inherent in the conventional wrenches, can rotate an object being screwed continuously as the ratchet wrench does, and further can be manufactured cheaply because its structure is simple.
~2~9~
cording to this invention, the above object can be achieved by providing a wrench including a handle member, a head member having a stationary jaw and a moving jaw, a pivot for pivotal supporting the head member at one end part of the handle member, and an actuating member for actuating the moving jaw to move towards the stationary jaw, the moving jaw having an inhibiting means that engages an engaging part provided at one end part of the handle member in the normal state for inhibiting the vying jaw from moving away from the stationary law, such that when the handle member is turned at a fixed angle in the direction opposite to the screwing direction while retaining engagement with said head member with an object being screwed, the inhibiting means disengages from the engaging part and thus the vying jaw is allowed to move in the direction parting from the stationary jaw against the actuating force generated from the actuating member.
The invention also provides a wrench that can control the engaging distance between the stationary jaw and the moving jaw and so is rapidly applicable to different sized objects being screwed.
The above object can be achieved by the embodiment of this invention wherein a working means supported movably on the moving jaw is employed as the inhibiting means, and the working means is designed to include an adjustable screw thread that meshes with the teeth of the moving jaw and an inhibiting means that is supported on this adjustable thread and can engage and disengage the engaging part of the handle member.
IN THE ATTACHED DRAWINGS:
Fig. 1 is a perspective view of a first embodiment of a wrench according to this invention.
Fig. 2 is a partly sectioned main part plan view illustrating the operating state of the wrench of Fig. 1.
Fig. 3 it a partly sectioned main part front view of the wrench of Fig. 1.
aye Fig. 4 is a main part plan view illustrating the operating state of the wrench of Fig. 1.
Fig. 5 is a main part plan view illustrating a deified embodiment of the wrench of Fig. 1.
Fig. 6 is a perspective view of a second embodiment of the wrench according to this invention.
Fig. 7 is a main part exploded perspective view illustrating disassembled constituting members of the wrench of Fig. 6.
Figs. 8 and 9 are partly sectioned main part plan views illustrating different operating states of the wrench of Fig. 6.
Referring to the attached drawings, in Figs. 1 to 5, there is shown a first embodiment of a wrench according to this invention. This wrench 1 includes a handle member 2 and a head member 3. This head member 3 has a stationary jaw 4 and a moving jaw 5, and is rotatable supported on a support plate 6 attached to one end part of handle member 2 by a pivot 7. On the side of the pivot 7 of the head member 3 there is formed a location groove 8.
In this groove 8 there is fitted the upper half of the plate 6 on the side of pivot 7. In the head member 3 opposed to the lower half of plate 6 there is formed a slide groove 9. In this groove 9 there is slid ably fitted a base part 2Q 10 of the moving jaw 5. This base part 10 is substantially thinner than the moving jaw 5. On the end surface of base part 10 in the direction opposed to the moving jaw 5 there is formed an inhibiting means 11 whose thickness is substantially the same as that of the vying jaw 5. This inhibiting means 11 it designed to engage an engaging part 12 that has been formed at the lower half of the fixing plate 6, in the normal state, and inhibit the vying jaw 5 from moving away from the stationary jaw 4. At the central part of the head member 3 there is formed a hollow 13 in substantially parallel with the fitting groove 8, one end of said hollow 13 opening in the slide groove 9. A spring 795~3 seat 14 is disposed in the hollow 13. Between the spring seat 14 and the moving jaw 5 facing the hollow 13 there is interposed a spring 15 that acts to actuate the moving jaw S to move towards the stationary Jaw 4. Fig. 5 shows a modification of the aforesaid embodiment. According to this modified embodiment, a spring bearing plate 17, whose section is channel-shaped, is attached to the lower end surface of the head member 3 where the slide groove 9 has been formed. Between the spring bearing plate 17 and the base part 10 of the moving jaw 5 there is interposed a spring 18 that actuates the moving jaw 5 to move toward the stationary jaw 4. The upper half of the plate 6 is substantially thinner than the lower half thereof because stepped parts 19 have been formed on both sides of the upper half, and an inhibiting means 20 is formed to be larger than the inhibiting means 11.
Reference will be made to the operation of the above embodiment as follows.
As shown in Fig. 2, when screwing an object, namely a nut a, the handle member 2 is turned downwards in the direction of the arrow while engaging the stationary jaw 4 and vying jaw 5 of the head member 3 with the flat a of nut a. In this normal state, the inhibiting means 11 formed at the base part 10 of the vying jaw 5 engages the engaging part 12 of the plate 6 so that the moving jaw 5 is inhibited from moving away from the stationary jaw 4. Due to this, the turning force of the handle member 2 is exerted upon the stationary jaw 4 and the moving jaw 5 so that the nut a is turned and screwed on.
When further turning the nut a, as shown in Fig. 4, the handle member 2 is turned upwards in the direction of the arrow at such a fixed angle as the end face 21 of the plate 6 on the side of pivot 7 may abut the bottom of the fitting groove 8 formed in the head member 3 while still engaging the stationary jaw 4 and moving jaw 5 with the nut a as mentioned previously. This turning disengages the engaging part 12 from the inhibiting means 11 and 79~
exerts, on the moving jaw 5, the reaction force generated at the time when turning the handle member 2 further upwards. As the result of this, the moving jaw 5 it allowed to Eve against the actuating force of the spring 15 thereby to loosen the engagement of the nut a When keeping on turning the handle member 2 upwards with the nut a as the center, the stationary jaw 4 and moving jaw 5 pass over the corner a of the nut a. Since the moving jaw 5 has been actuated to move toward the stationary jaw 4 by the action of the spring 15 at this time, directly after the completion of this movement, the stationary jaw and moving jaw engage the next flat a of the nut a. Thereafter, when turning the handle member 2 downwards at a fixed angle, as shown in Fig. 2, the engaging part 12 of the fitting plate 6 engages the inhibiting means 11 of the moving jaw 5 again and the end face 21 of the plate 6 is separated from the bottom of the fitting groove 8, whereby the original normal state is restored.
The nut a is screwed on by turning the handle member 2 downwards again, as mentioned previously, from this normal state.
As mentioned above, the nut a is screwed up gradually and rigidly by repeatedly turning the handle member 2 in both directions, namely downwards and upwards, while engaging the stationary jaw 4 and moving jaw 5 of the head member 3 with the nut a. Accordingly, this wrench 1 can screw on the nut a continuously by turning repeatedly without the trouble of removing the head member 3 each time from the nut a inspire of its simple structure, and can enhance the work efficiency markedly. In addition, this wrench 1 can be manufactured cheaply because its structure is simple.
In Figs. 6 to 9, there is shown a second embodiment of a wrench according to this invention. This wrench 31 is commonly named a Lobster adjustable wrench and is basically different from the above mentioned wrench in that the engaging distance between a stationary jaw 34 and a moving jaw 35 that engages the nut a can be set properly.
In the wrench 31, a stepped part 37 is formed at the connecting base part of each surface of a support plate 36. In a head member 33 there is formed a location groove 38 that fits up to the location adjacent to the stepped part 37 of the plate 36~ A slide groove 39 is formed in the head member 33 in a direction opposite to groove 38. In groove 39 there is slid ably fitted a base part 40 of the moving jaw 35.
Base part 40 is substantially thinner than the moving jaw 35, and is provided with teeth 41 in the longitudinal direction. An adjusting screw 42 meshes the teeth 41 so that the engaging distance between the stationary jaw 34 and the moving jaw 35 may be arranged properly by sliding the base part 40 along the slide groove 39 by the action of adjusting screws 42. The adjust screw 42 is received into a rectangular opening 43 formed in the head member 32 in the manner of being insert-fitted in a guide rod 44. This guide rod 44 is designed so that one end part is screw-attached to the head member 32 and another end part is located in a slide groove 45 formed in communication with the fitting groove 38. In the groove 45 there is slid ably fitted a slider 46 that is insert-fitted to another end part of the guide rod 44 adjoining the adjusting screws 42. The slider 46 is provided with an inhibiting means 49 that is inhibited from rotating by slid ably fitting in the fitting groove 3B
and operates to inhibit the moving jaw 35 from moving away from the stationary jaw 34 by engaging an engaging part 48 in the normal state, the engaging part 48 being formed at the end part of the fitting plate 36 in the direction opposite to a pivot 47. Furthermore, the slider 46 has a recessed part 50.
Between the recessed part 50 and an engaging collar 51, provided at the edge of another end part of the guide rod 44, there is interposed a spring 52 that actuates the slider 46 to move the moving jaw 35 through the adjusting screws 42 toward the stationary jaw 34.
Reference numeral 53 denotes a spring interposed between plate 6 and the i 9~8 head member 3.
In this embodiment, as shown in Figs. 8 and 9, when a reaction force is exerted on the moving jaw 35, the adjusting screw 42 and the slider 46 move on the guide rod 44 towards the engaging collar 51 against the actuating force of the spring 52 together with the vying jaw 35, and when the stationary jaw 34 and the moving jaw 35 have passed over the opposite angle a of the nut a, the adjusting screw and the slider move in the direction opposite thereto together with the moving jaw 35. This embodiment is different in these points from the above mentioned embodiment, but those embodiments are substantially identical in the other points. Therefore, detailed explanations will be omitted. In this embodiment, furthermore, when screwing up different-sized nuts a, the adjust screw 42 is turned for moving the moving jaw 35 away from the stationary jaw 34 and thus the engaging distance between the stationary jaw 34 and the moving jaw 35 is set correctly.
I
Claims (6)
PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A wrench including a handle member, a head member having a stationary jaw and a moving jaw, a pivot for pivotal supporting said head member at one end part of said handle member, and an actuating member for actuating said moving jaw to move toward said stationary jaw, said moving jaw having an inhibiting means that engages an engaging part provided at one end part of said handle member in the normal state for inhibiting the moving jaw from moving away from the stationary jaw, such that when the handle member is turned at a fixed angle in the direction opposite to the screwing on direction while engaging said head member with an object being rotated, said inhibiting means disengages said engaging part and thus the moving jaw is allowed to move in the direction parting from the stationary jaw against the actuating force generated from said actuating member.
2. A wrench according to claim 1 wherein said actuating means is disposed in a hollow formed in said head member.
3. A wrench according to claim 1 wherein said inhibiting means is formed as a part of said moving jaw.
4. A wrench according to claim 1 wherein said inhibiting means comprises a working means supported movably on said moving jaw.
5. A wrench according to claim 4 wherein said working means includes an adjust screw that meshes teeth of the moving jaw and an inhibiting means that is supported on this adjust screw and can engage and disengage the engaging part of the handle member.
6. A wrench according to claim 5 wherein said inhibiting means fits slid ably in a slide groove formed in said head member.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP125311/1982 | 1982-08-19 | ||
| JP1982125311U JPS5932359U (en) | 1982-08-19 | 1982-08-19 | monkey wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1227958A true CA1227958A (en) | 1987-10-13 |
Family
ID=14906959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000434888A Expired CA1227958A (en) | 1982-08-19 | 1983-08-18 | Wrench |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5932359U (en) |
| KR (1) | KR840005682A (en) |
| AU (1) | AU561839B2 (en) |
| CA (1) | CA1227958A (en) |
| DE (1) | DE3329776A1 (en) |
| FR (1) | FR2531895B1 (en) |
| GB (1) | GB2127728B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5996445A (en) * | 1998-06-04 | 1999-12-07 | Universal Toolcraft Corporation | Ratcheting wrench |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2594063A1 (en) * | 1986-02-13 | 1987-08-14 | Fimbel Eric | Adjustable bench spanner |
| TWI412435B (en) * | 2012-08-14 | 2013-10-21 | Chang Hsueh E Hsu | Wrench |
| CN103252743A (en) * | 2013-06-07 | 2013-08-21 | 蒋小辉 | Shifting wrench |
| TWM491557U (en) * | 2014-09-04 | 2014-12-11 | wei-ming Lai | Structure of adjustable wrench |
| JP2017030116A (en) * | 2015-08-04 | 2017-02-09 | 株式会社スーパーツール | Monkey wrench with ratchet mechanism |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE353126C (en) * | 1920-11-24 | 1922-12-28 | Mueller Karl | Wrench |
| GB217097A (en) * | 1923-08-21 | 1924-06-12 | Alfred Harry Faram | Improvements in or relating to adjustable spanners |
| GB252523A (en) * | 1925-04-28 | 1926-06-03 | Samuel Lowden Evans | An improved adjustable wrench |
| GB257804A (en) * | 1926-01-01 | 1926-09-09 | Walter Herbert Cook | Improvements in self-adjusting spanners |
| GB301945A (en) * | 1927-09-01 | 1928-12-03 | Hans Dorn | Improvements in or relating to spanners or wrenches |
| US1771172A (en) * | 1929-03-14 | 1930-07-22 | Fraser Bernard | Wrench |
| GB618203A (en) * | 1945-11-02 | 1949-02-17 | George Thomas Logan | Improvements in wrench construction |
| DE934099C (en) * | 1952-06-17 | 1955-10-13 | Eugen Dr-Ing Mayer | Adjustable wrench |
| FR1230338A (en) * | 1959-07-18 | 1960-09-15 | Automatic nut wrench | |
| GB1092693A (en) * | 1965-01-19 | 1967-11-29 | William Hume & Company Ltd | Improvements in or relating to spanners |
| GB1127261A (en) * | 1965-12-15 | 1968-09-18 | Nordgren Simon Nils | Improvements in or relating to wrenches |
| US3354758A (en) * | 1966-07-07 | 1967-11-28 | Wayland F Slayton | Self-adjusting and locking wrench |
| SE374683B (en) * | 1973-06-28 | 1975-03-17 | S N Nordgren | |
| CH582044A5 (en) * | 1974-02-01 | 1976-11-30 | Lacrex Brevetti Sa |
-
1982
- 1982-08-19 JP JP1982125311U patent/JPS5932359U/en active Granted
-
1983
- 1983-07-26 KR KR1019830003473A patent/KR840005682A/en not_active Application Discontinuation
- 1983-08-16 AU AU18030/83A patent/AU561839B2/en not_active Ceased
- 1983-08-17 FR FR838313365A patent/FR2531895B1/en not_active Expired
- 1983-08-18 CA CA000434888A patent/CA1227958A/en not_active Expired
- 1983-08-18 DE DE3329776A patent/DE3329776A1/en not_active Ceased
- 1983-08-18 GB GB08322220A patent/GB2127728B/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5996445A (en) * | 1998-06-04 | 1999-12-07 | Universal Toolcraft Corporation | Ratcheting wrench |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2531895A1 (en) | 1984-02-24 |
| JPS5932359U (en) | 1984-02-28 |
| JPH0224616Y2 (en) | 1990-07-05 |
| AU561839B2 (en) | 1987-05-21 |
| GB2127728B (en) | 1986-10-22 |
| KR840005682A (en) | 1984-11-16 |
| FR2531895B1 (en) | 1989-10-13 |
| GB8322220D0 (en) | 1983-09-21 |
| GB2127728A (en) | 1984-04-18 |
| DE3329776A1 (en) | 1984-02-23 |
| AU1803083A (en) | 1984-02-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5918511A (en) | Adjustable socket wrench | |
| KR900008894B1 (en) | Self-adjusting plier | |
| US4706528A (en) | Adjustable wrench | |
| US5595098A (en) | Tool having jaws for gripping hexagonally shaped objects | |
| US5941142A (en) | Ratcheting adjustable jaw wrench and method of use | |
| EP0484379A1 (en) | Adjustable ratchet wrench | |
| WO1998040292A1 (en) | Conveyor belt tensioning mechanism utilizing a manually operated cam-type tool | |
| US6089129A (en) | Adjustable wrench | |
| CA1227958A (en) | Wrench | |
| ES2020081A6 (en) | Reversible adjustable wrench | |
| US5832793A (en) | Wrench with tightening grip | |
| CN100377842C (en) | Adjustable ratchet wrench | |
| US5037075A (en) | Quick lock in parallel and angle plate system for machining vise | |
| KR20040017308A (en) | One hand pipe wrench | |
| US6336384B1 (en) | Adjustable wrench | |
| US4325275A (en) | Adjustable open-end and box-end wrench | |
| US6305249B1 (en) | Adjustable wrench | |
| US4554847A (en) | Open end ratchet wrench | |
| US4873898A (en) | Ratchetless reversible wrench | |
| US5590991A (en) | Locking device | |
| US6098506A (en) | Adjustable incline wrench | |
| US5127639A (en) | Adjustable vise | |
| US6289773B1 (en) | Adjustable wrench | |
| US4572037A (en) | Monkey wrench | |
| US4534246A (en) | Adjustable wrench |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |