CA2186081C - Combination wrench - Google Patents
Combination wrench Download PDFInfo
- Publication number
- CA2186081C CA2186081C CA002186081A CA2186081A CA2186081C CA 2186081 C CA2186081 C CA 2186081C CA 002186081 A CA002186081 A CA 002186081A CA 2186081 A CA2186081 A CA 2186081A CA 2186081 C CA2186081 C CA 2186081C
- Authority
- CA
- Canada
- Prior art keywords
- tool
- wrench
- jaw
- teeth
- handle member
- 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 - Lifetime
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
- B25B13/28—Spanners; Wrenches with adjustable jaws the jaws being pivotally movable
- B25B13/34—Arrangements for locking the jaws
- B25B13/36—Arrangements for locking the jaws by ratchet action
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
A combination tool of the wrench type which includes a crescent wrench at one end of the handle member and a ratchet mechanism at the other end of the handle member. The tool apparatus includes external sockets and a holster to carry the combination tool and said external sockets. The ratchet mechanism is a one-way ratchet drive and is housed in the body of the handle member making it flush with the handle member, thus allowing the comfortable use of the crescent wrench without any serious obstruction caused by the ratchet mechanism.
Description
FIELD OF THE INVENTION
This invention relates to a hand-operated tool and more specifically to a universal wrench including a ratchet mechanism.
BACKGROUND OF THE INVENTION
It is common particularly for miners and maintenance workers to carry both a crescent wrench and a ratchet wrench on the person while attending to duties in a mine. Since the tools are carried on the person, weight and convenient storage are of great concern. The need to readily have both tools accessible without restricting the free movement of the person is also a concern that this invention addresses.
This invention provides an easily stored and carried tool which includes and combines the two types of hand tools most often needed by miners, and others, to do their duties.
Today, many miners are using 12 inch crescent wrenches. It is the size of choice because of its relatively light weight and is easily carried on a belt.
Every miner today wears a belt on which he/she carries a battery for a mine light, a self-rescuer and a wrench. In many cases, the miner must walk or climb hundreds of feet of ladderways to get to his work place. Once at the work site, to perform his duties, such as repairs to drilling equipment, pipe installation, hose repairs, etc.
the miner requires a crescent/pipe wrench, and a ratchet wrench with a socket set. In addition to the excessive weight of carrying separate tools to accomplish one specific task, carrying these tools becomes awkward and cumbersome.
SUMMARY OF THE INVENTION
These disadvantages may be overcome by having a tool system consisting of a hand-operated tool ideally approximately twelve inches in length having a crescent wrench at one end of the handle member and a ratcheted socket drive mechanism at the other end of the handle member. This tool combined with stackable external sockets that may be attached to the ratchet-operated socket to turn various sized nuts and bolts and a holster to accept the tool and the said external sockets provide convenience to the miner's needs. The ratchet mechanism is incorporated in the body of the handle member. Such a flush configuration of the ratchet mechanism permits the use of the tool as a crescent wrench without the ratchet mechanism being an obstructing end-piece on the handle member. Also, this design of the ratchet mechanism will not obstruct or disturb the grip of the handle member when the tool is used as a crescent wrench.
Accordingly, it is an object of the present invention to obviate and mitigate from the disadvantages of the prior art.
It is a further object of the present invention to provide a unitary tool combining the functions of a universally adjustable crescent-type wrench and a ratchet/socket wrench.
According to the present invention then, a hand operated tool, comprising: a handle member having first and second axially opposite ends; adjustable crescent wrench means provided at one of said first and second ends of said handle member, said crescent wrench means including first and second opposed jaw members, said first jaw member being fixed in position and said second jaw member being laterally moveable relative to said first jaw member for opening and closing said wrench about a workpiece, said first jaw member including an insert removably connected thereto, said insert having teeth thereon for gripping pipe in cooperation with said second jaw member; and ratcheted socket drive means provided at the other of said first and second ends.
BRIEF DESCRIPTION OF THE DRAWINGS
Preferred embodiments of the present invention will now be described in greater detail and will be better understood when read in conjunction with the following drawings, in which:
Figure 1 is a plan view of the present tool;
Figure 2 is a side elevational view of the tool of Figure 1;
Figure 3 is a partially sectional view of one end of the tool shown in Figure through the line i-1;
Figure 4 is a perspective view of the end of the tool shown in Figure 3 less the ratcheting mechanism;
Figure 5 is a top plan view of an external socket for use with the wrench of Figure 1;
Figure 6 is a side view of the socket of Figure 5; and Figure 7 is a bottom plan view of the socket of Figure 5.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
With reference initially to Figure 1, the present tool 50 comprises a handle member 1 used to grip and operate the tool as either a pipe/crescent wrench or as a ratchet-operated socket wrench. A crescentlpipe wrench 2 is formed at one end of the handle with the socket wrench 16 being provided at the handle's opposite end.
Crescent wrench 2 comprises a stationary upper jaw 3 which may include a slidable insert 10 including a plurality of teeth 11 functioning as pipe grips.
Opposite stationary jaw 3 is a movable lower jaw 4. Movable lower jaw 4 is mounted for lateral movement in the manner of an adjustable crescent wrench. The movable lower jaw 4 is provided with a plurality of teeth 5 which are engaged by a worm gear 6 which in turn is mounted for rotation on a laterally directed shaft 7. The worm gear 6 is mounted in an opening 8 so that it is accessible for manual rotation from both sides of handle 1. The movable lower jaw 4 may also include a set of teeth 11 for gripping pipe.
At the other end of handle member 1 is as aforesaid a ratchet-operated socket mechanism 16. Two flanges 12 and 13 respectively seen most clearly in Figure 4 extend from the body of handle member 1 at this end. The flanges provide circular apertures 14 and 15 respectively. Flanges 12 and 13 and their respective apertures 14 and 15 form a cavity to receive ratchet-operated mechanism 16 including a rotatable socket drive ring 17 having on its annular outer surface a plurality of incrementally spaced-apart ratchet teeth 18. These teeth are engaged by a pawl (Figure 3) which is urged into operative relationship with the ratchet teeth by a coil spring 20. Drive ring 17 is held in place by flanges 12 and 13. As shown in Figure 3, the ring 17 has an internal box 24 with points 34 to engage a fastener (not shown) directly or to engage sockets of various sizes as will be described below. A
fastener, such as a rivet 21, passes through a suitable aperture 31 in handle member 1 and passes through an axially aligned bore 22 in pawl 19 to act as the pawl's pivot.
Handle member 1 is provided with a slot 23 extending rearwardly from the pawl to form an opening enclosing coil spring 20.
Laterally opposite annular flanges 25 on ring 17 extend through circular apertures 14 and 15 formed in flanges 12 and 13, respectively. This locks the drive ring in place but also allows its rotation relative to the tool's handle.
As previously mentioned, socket drive 17 includes a box that can be sized to directly engage fasteners of the same size. For greater flexibility, box 24 is adapted to engage variously sized sockets 26, an example of which is shown in Figures 5, 6 and 7. Sockets 26 may be conventional in shape and construction and are of course adapted to engage and drive various sized hex headed nuts or bolts. Socket member 26 includes a male hex drive 27 to releasably engage box 24 in drive ring 17. Each socket also includes a bowl 29 into which is formed a hex socket 30 of a predetermined size and of course there will be a plurality of such sockets to span a predetermined size range for hex headed nuts and bolts. An annular shoulder 28 between male drive 27 and bowl 29 will bear against either of flanges 25 when the socket is fully engaged into drive ring 17.
The main elements of the present tool are castings or are formed by powder metallurgy methods. The external sockets are preferably made from forged steel.
The design of the elements is readily extrapolated to smaller and larger sizes without difficulty to provide a wide range of wrenches.
Handle member 1 is so formed that it can accomplish three functions relative to the socket drive.
1. It acts as a housing bearing and raceway to limit and confine the operation of the pawl relative to drive ring 17 as well as the rotation of the ring itself within the planar embrace of the handle.
2. When a socket is engaged with a fastener, the handle member 1 acts as a lever to actuate the captive pawl through a slip movement about pin 21 to a selected locked position on the teeth of the ratchet; and 3. While the pawl holds the drive ring 17 in a locked position, it acts as a lever to rotate the socket enough to twist tight or loosen the fastener hex head held fixed in the grip of the socket. Obviously, the socket is inserted into one side or the other of drive ring 17 for alternately tightening or loosening the fastener.
In addition, the construction used in this invention assures that the chamber containing the drive ring and pawl mechanism may be periodically cleaned of foreign matter.
It is obvious that minor changes may be made in the form and construction of the invention without departing from the material spirit thereof. It is not however desired to confine the invention to the exact form herein shown and described, but it is desired to include all such as properly come within the scope claimed.
This invention relates to a hand-operated tool and more specifically to a universal wrench including a ratchet mechanism.
BACKGROUND OF THE INVENTION
It is common particularly for miners and maintenance workers to carry both a crescent wrench and a ratchet wrench on the person while attending to duties in a mine. Since the tools are carried on the person, weight and convenient storage are of great concern. The need to readily have both tools accessible without restricting the free movement of the person is also a concern that this invention addresses.
This invention provides an easily stored and carried tool which includes and combines the two types of hand tools most often needed by miners, and others, to do their duties.
Today, many miners are using 12 inch crescent wrenches. It is the size of choice because of its relatively light weight and is easily carried on a belt.
Every miner today wears a belt on which he/she carries a battery for a mine light, a self-rescuer and a wrench. In many cases, the miner must walk or climb hundreds of feet of ladderways to get to his work place. Once at the work site, to perform his duties, such as repairs to drilling equipment, pipe installation, hose repairs, etc.
the miner requires a crescent/pipe wrench, and a ratchet wrench with a socket set. In addition to the excessive weight of carrying separate tools to accomplish one specific task, carrying these tools becomes awkward and cumbersome.
SUMMARY OF THE INVENTION
These disadvantages may be overcome by having a tool system consisting of a hand-operated tool ideally approximately twelve inches in length having a crescent wrench at one end of the handle member and a ratcheted socket drive mechanism at the other end of the handle member. This tool combined with stackable external sockets that may be attached to the ratchet-operated socket to turn various sized nuts and bolts and a holster to accept the tool and the said external sockets provide convenience to the miner's needs. The ratchet mechanism is incorporated in the body of the handle member. Such a flush configuration of the ratchet mechanism permits the use of the tool as a crescent wrench without the ratchet mechanism being an obstructing end-piece on the handle member. Also, this design of the ratchet mechanism will not obstruct or disturb the grip of the handle member when the tool is used as a crescent wrench.
Accordingly, it is an object of the present invention to obviate and mitigate from the disadvantages of the prior art.
It is a further object of the present invention to provide a unitary tool combining the functions of a universally adjustable crescent-type wrench and a ratchet/socket wrench.
According to the present invention then, a hand operated tool, comprising: a handle member having first and second axially opposite ends; adjustable crescent wrench means provided at one of said first and second ends of said handle member, said crescent wrench means including first and second opposed jaw members, said first jaw member being fixed in position and said second jaw member being laterally moveable relative to said first jaw member for opening and closing said wrench about a workpiece, said first jaw member including an insert removably connected thereto, said insert having teeth thereon for gripping pipe in cooperation with said second jaw member; and ratcheted socket drive means provided at the other of said first and second ends.
BRIEF DESCRIPTION OF THE DRAWINGS
Preferred embodiments of the present invention will now be described in greater detail and will be better understood when read in conjunction with the following drawings, in which:
Figure 1 is a plan view of the present tool;
Figure 2 is a side elevational view of the tool of Figure 1;
Figure 3 is a partially sectional view of one end of the tool shown in Figure through the line i-1;
Figure 4 is a perspective view of the end of the tool shown in Figure 3 less the ratcheting mechanism;
Figure 5 is a top plan view of an external socket for use with the wrench of Figure 1;
Figure 6 is a side view of the socket of Figure 5; and Figure 7 is a bottom plan view of the socket of Figure 5.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
With reference initially to Figure 1, the present tool 50 comprises a handle member 1 used to grip and operate the tool as either a pipe/crescent wrench or as a ratchet-operated socket wrench. A crescentlpipe wrench 2 is formed at one end of the handle with the socket wrench 16 being provided at the handle's opposite end.
Crescent wrench 2 comprises a stationary upper jaw 3 which may include a slidable insert 10 including a plurality of teeth 11 functioning as pipe grips.
Opposite stationary jaw 3 is a movable lower jaw 4. Movable lower jaw 4 is mounted for lateral movement in the manner of an adjustable crescent wrench. The movable lower jaw 4 is provided with a plurality of teeth 5 which are engaged by a worm gear 6 which in turn is mounted for rotation on a laterally directed shaft 7. The worm gear 6 is mounted in an opening 8 so that it is accessible for manual rotation from both sides of handle 1. The movable lower jaw 4 may also include a set of teeth 11 for gripping pipe.
At the other end of handle member 1 is as aforesaid a ratchet-operated socket mechanism 16. Two flanges 12 and 13 respectively seen most clearly in Figure 4 extend from the body of handle member 1 at this end. The flanges provide circular apertures 14 and 15 respectively. Flanges 12 and 13 and their respective apertures 14 and 15 form a cavity to receive ratchet-operated mechanism 16 including a rotatable socket drive ring 17 having on its annular outer surface a plurality of incrementally spaced-apart ratchet teeth 18. These teeth are engaged by a pawl (Figure 3) which is urged into operative relationship with the ratchet teeth by a coil spring 20. Drive ring 17 is held in place by flanges 12 and 13. As shown in Figure 3, the ring 17 has an internal box 24 with points 34 to engage a fastener (not shown) directly or to engage sockets of various sizes as will be described below. A
fastener, such as a rivet 21, passes through a suitable aperture 31 in handle member 1 and passes through an axially aligned bore 22 in pawl 19 to act as the pawl's pivot.
Handle member 1 is provided with a slot 23 extending rearwardly from the pawl to form an opening enclosing coil spring 20.
Laterally opposite annular flanges 25 on ring 17 extend through circular apertures 14 and 15 formed in flanges 12 and 13, respectively. This locks the drive ring in place but also allows its rotation relative to the tool's handle.
As previously mentioned, socket drive 17 includes a box that can be sized to directly engage fasteners of the same size. For greater flexibility, box 24 is adapted to engage variously sized sockets 26, an example of which is shown in Figures 5, 6 and 7. Sockets 26 may be conventional in shape and construction and are of course adapted to engage and drive various sized hex headed nuts or bolts. Socket member 26 includes a male hex drive 27 to releasably engage box 24 in drive ring 17. Each socket also includes a bowl 29 into which is formed a hex socket 30 of a predetermined size and of course there will be a plurality of such sockets to span a predetermined size range for hex headed nuts and bolts. An annular shoulder 28 between male drive 27 and bowl 29 will bear against either of flanges 25 when the socket is fully engaged into drive ring 17.
The main elements of the present tool are castings or are formed by powder metallurgy methods. The external sockets are preferably made from forged steel.
The design of the elements is readily extrapolated to smaller and larger sizes without difficulty to provide a wide range of wrenches.
Handle member 1 is so formed that it can accomplish three functions relative to the socket drive.
1. It acts as a housing bearing and raceway to limit and confine the operation of the pawl relative to drive ring 17 as well as the rotation of the ring itself within the planar embrace of the handle.
2. When a socket is engaged with a fastener, the handle member 1 acts as a lever to actuate the captive pawl through a slip movement about pin 21 to a selected locked position on the teeth of the ratchet; and 3. While the pawl holds the drive ring 17 in a locked position, it acts as a lever to rotate the socket enough to twist tight or loosen the fastener hex head held fixed in the grip of the socket. Obviously, the socket is inserted into one side or the other of drive ring 17 for alternately tightening or loosening the fastener.
In addition, the construction used in this invention assures that the chamber containing the drive ring and pawl mechanism may be periodically cleaned of foreign matter.
It is obvious that minor changes may be made in the form and construction of the invention without departing from the material spirit thereof. It is not however desired to confine the invention to the exact form herein shown and described, but it is desired to include all such as properly come within the scope claimed.
Claims (6)
1. A hand operated tool, comprising:
a handle member having first and second axially opposite ends;
adjustable crescent wrench means provided at one of said first and second ends of said handle member, said crescent wrench means including first and second opposed jaw members, said first jaw member being fixed in position and said second jaw member being laterally moveable relative to said first jaw member for opening and closing said wrench about a workpiece, said first jaw member including an insert removably connected thereto, said insert having teeth thereon for gripping pipe in cooperation with said second jaw member; and ratcheted socket drive means provided at the other of said first and second ends.
a handle member having first and second axially opposite ends;
adjustable crescent wrench means provided at one of said first and second ends of said handle member, said crescent wrench means including first and second opposed jaw members, said first jaw member being fixed in position and said second jaw member being laterally moveable relative to said first jaw member for opening and closing said wrench about a workpiece, said first jaw member including an insert removably connected thereto, said insert having teeth thereon for gripping pipe in cooperation with said second jaw member; and ratcheted socket drive means provided at the other of said first and second ends.
2. The tool of claim 1 wherein said ratcheted drive means are retained between a pair of opposed flange members extending axially from said other end of said handle member, each said flange member including therein a circular aperture, said apertures cooperating to rotatably receive therein a socket drive ring.
3. The tool of claim 2 wherein said socket drive ring includes on an outer annular surface thereof a plurality of ratchet teeth adapted to operatively engage pawl means permitting rotation of said socket drive ring in one direction only.
4. The tool of claim 3 wherein said pawl means are urged into operative engagement with said ratchet teeth by a resilient member.
5. The tool of claim 4 wherein said ratchet drive ring additionally includes box means therein with points on an inner annular surface of said box means for engaging fasteners or the drive members of variously sized sockets.
6. The tool of any of the claims 1 to 5 wherein said second jaw has teeth thereon arranged in opposition to said teeth on said insert for enhanced pipe gripping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002186081A CA2186081C (en) | 1996-09-20 | 1996-09-20 | Combination wrench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002186081A CA2186081C (en) | 1996-09-20 | 1996-09-20 | Combination wrench |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2186081A1 CA2186081A1 (en) | 1998-03-21 |
| CA2186081C true CA2186081C (en) | 2003-02-11 |
Family
ID=4158944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002186081A Expired - Lifetime CA2186081C (en) | 1996-09-20 | 1996-09-20 | Combination wrench |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2186081C (en) |
-
1996
- 1996-09-20 CA CA002186081A patent/CA2186081C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CA2186081A1 (en) | 1998-03-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20160920 |