CN201889735U

CN201889735U - Manual clamping device

Info

Publication number: CN201889735U
Application number: CN2010202013338U
Authority: CN
Inventors: 布坎南·奈杰尔·亚历山大
Original assignee: AMERICAN AGS Co Ltd
Current assignee: AMERICAN AGS Co Ltd
Priority date: 2009-05-05
Filing date: 2010-05-05
Publication date: 2011-07-06
Anticipated expiration: 2020-05-05
Also published as: GB0908588D0; GB201007513D0; FR2945229A1; CA2707297A1; GB2470637B; GB2470637A; GB0907673D0; TWM400923U; DE202010006494U1

Abstract

The utility model relates to a manual clamping device, comprising a first claw (12) which is fixedly connected with a first claw handle (28), a second claw (14) which can move relatively to the first claw so that the first claw and the second claw to commonly form a resizable interval for holding a part to be clamped, a second claw handle which is rotatably connected with the second claw so that the second claw can move relatively to the first claw, and a connecting rod system (58) which is rotatably connected with the second claw handle and is provided with a guiding part (70) optionally connected with a plurality of guiding parts (72 and 74) on the first claw handle. The guiding part is connected with the first guiding part (72) which forms a first range and a second guiding part (74) which forms a second range, wherein the second claw moves towards the first claw in the first range, and the second claw moves towards the first claw in the second range.

Description

Hand operated gripping tool

Technical field

The utility model relates to a kind of hand operated gripping tool, and a kind of form that particularly relates to a kind of suitable hand operated gripping tool is to be commonly referred to as water pump pliers or the hand operated gripping tool of the clamp of the pincerlike formula that is slidingly connected.

Background technology

The public characteristic of existing water pump pliers be pawl for pliers grip and be installed in one on the pawl rear area on the handle screw or the rivet form and by the outstanding angle of axostylus axostyle skew of the elongated slot on another handle.This clamp comprises can make device spaced apart selectively between the pawl.Ridge that separates or tooth that this device can be provided with for the long limit along this groove are to increase and the selectable joint that is connected that props up axostylus axostyle.Another known method of adjusting the distance between the pawl of this clamp engages with fulcrum for form the arcuate ridges that separates on the surface of facing of this groove.All this instruments all need two hand operateds, and the interval of pawl is adjusted to the size that is clamped in the workpiece between the pawl.This adjustment comprises draw-out handle, and an axostylus axostyle is slided along groove, and a movable pawl is moved to the position that pawl is approximately the size of holding workpiece at interval.

This shows that above-mentioned existing veteran soldiers and able captains' clamp obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.

The utility model content

The purpose of this utility model and solve its technical problem and realize by the following technical solutions.According to a kind of hand operated gripping tool that the utility model proposes, it comprises first pawl of fixedlying connected with first cleft hand handle, with respect to described first pawl motion, make the common formation of described first and second pawls hold second pawl in the variable-sized gap of the part of wanting clamping therebetween, be used for second the cleft hand handle of mobile phase with described second pawl is rotationally connected to described second pawl of described first pawl, be connected with described second cleft hand handle rotationally and have can be selectively be located at described first cleft hand handle on the push and pull system of the targeting part that engages of a plurality of targeting parts, described targeting part with form described second pawl towards the first described targeting part of first scope of described first pawl motion with form described second pawl and engage towards second described targeting part of second scope of described first pawl motion.

The purpose of this utility model and solve its technical problem and also can be applied to the following technical measures to achieve further.

Aforesaid hand operated gripping tool, it is characterized in that the described first cleft hand handle has the guide rail of described targeting part, described guide rail comprises described first and second targeting parts and in the horizontal expansion and the coupling part that is connected both of described first and second targeting parts.

Aforesaid hand operated gripping tool is characterized in that described first and second targeting parts extend and described coupling part extends to stub area with nearest described second targeting part of described first pawl from the stub area from described first pawl described first targeting part farthest at the length direction of described first cleft hand handle.

Aforesaid hand operated gripping tool is characterized in that described coupling part overarches towards the free end of described first cleft hand handle.

Aforesaid hand operated gripping tool, it is characterized in that it also comprises is connected between described second cleft hand handle and the described push and pull system, be used to be offset the offset member of described second pawl to the corresponding starting position of described first and second range of movement, in this starting position, for corresponding range of movement, described second pawl from described first pawl farthest.

Aforesaid hand operated gripping tool, it is characterized in that it comprises the long elements that connects described first pawl and described first cleft hand handle, described second pawl can move and described first cleft hand handle and described long elements form 30 °-90 ° angle basically along described long elements.

Aforesaid hand operated gripping tool, it is characterized by, described second cleft hand handle has according to the motion of described second cleft hand handle towards described first cleft hand handle, with counteractive second the cleft hand handle cam of the first cam reaction surface that forms by described long elements, described second pawl has a cam face, be used for resisting the second cam reaction surface that described long elements forms under the reaction of described second cleft hand handle cam and the described first cam reaction surface, the reaction of described cam face and the described second cam reaction surface causes the rotational motion of described second pawl towards described first pawl.

Aforesaid hand operated gripping tool is characterized by, and described second pawl rotates with respect to described second cleft hand handle on the fulcrum pin that is located at described second cleft hand handle end.

Aforesaid hand operated gripping tool is characterized by, and described targeting part comprises corresponding elongate slots.

Aforesaid hand operated gripping tool is characterized by, and described elongate slots is connected along described first cleft hand handle with substantially parallel spaced relationship.

Aforesaid hand operated gripping tool is characterized by, and described range of movement is overlapping.

Aforesaid hand operated gripping tool is characterized by, and in described first range of movement, described second pawl moves between the maximum open mode of described pawl and described maximum open mode and minimum open mode position intermediate.In described second range of movement, described second pawl moves between described maximum open mode and described minimum open mode position intermediate and described minimum open mode.

Aforesaid hand operated gripping tool is characterized by, and in the corresponding starting position of described range of movement, the direction of described first cleft hand handle and described second cleft hand handle is basic identical.

Aforesaid hand operated gripping tool is characterized by described first cleft hand handle and described second cleft hand handle, extends in described corresponding starting position with substantially parallel spaced relationship.

Aforesaid hand operated gripping tool, it is characterized by, each of described first and second cleft hand handles all comprises the described hand retained part of a hand retained part and contiguous described first cleft hand handle of described a plurality of targeting part, make that the user can be with described hand retained part, catch a manual work of the hand of described instrument, directly make described targeting part motion at described targeting part.

Aforesaid hand operated gripping tool is characterized by, and each described targeting part is made in use, moves along the targeting part that is connected with it under the reaction force that described targeting part produces when described first and second described parts of pawl clamping.

Aforesaid hand operated gripping tool is characterized by, described first and second cleft hand handles put in one plane and described push and pull system on described plane, between the described first and second cleft hand handles, extend.

The utility model compared with prior art has tangible advantage and beneficial effect.By technique scheme, the utility model provides a kind of hand operated gripping tool, and it comprises first pawl of fixedlying connected with first cleft hand handle; Can make common second pawl that forms the variable size interval that holds the clamping part of described first and second pawls with respect to described first pawl motion; Be rotationally connected with described second pawl, can make second the cleft hand handle of described second pawl with respect to described first pawl motion; Be rotationally connected with described second cleft hand handle, and have the push and pull system of the targeting part that can engage with a plurality of targeting parts of on described first cleft hand handle, making selectively.Described targeting part engages with first described targeting part, forms described second pawl and engages towards first range of movement of described first pawl with second described targeting part, forms second range of movement of described second pawl towards described first pawl.

In sum, the utility model has obvious improvement technically, and has tangible good effect, really is a new and innovative, progressive, practical new design.

Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present utility model can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.

Description of drawings

Fig. 1 is the schematic side elevation of hand operated gripping tool;

Fig. 2 and Fig. 1 are corresponding, are illustrated in the hand operated gripping tool under the full open position;

Fig. 3 represents a side part of the movable pawl of hand operated gripping tool.

The specific embodiment

For further setting forth the utility model is to reach technological means and the effect that predetermined utility model purpose is taked, below in conjunction with accompanying drawing and preferred embodiment, to according to the hand operated gripping tool that the utility model proposes, its specific embodiment, structure, feature and effect thereof, describe in detail as after.

See also shown in Fig. 1 and 2 the hand operated gripping tool of expression clamp 10 forms.Represent to remove the stacked clamp of clamp 10 with schematic form among the figure, can see the inner body of clamp.Specifically, corresponding top (as seeing in the drawings) stacked of not representing clamp handle and movable pawl.The top of movable pawl is stacked to be illustrated among Fig. 3.

Clamp 10 comprises a fixed claw 12 and a movable pawl 14.Should fix the

clamping profile

16,18 that has the opposite placement of holding workpiece with movable pawl 12,14.Fixed claw 12 is equipped with an optional clamping profile adjustment device 20.Clamping profile adjustment device 20 is generally U-shaped spare, and it is clipped on the fixed claw 12 with the boots form, and has the clamping profile 22 different with the clamping profile 16 of this pawl.In the present embodiment, this clamping profile adjustment device 20 is made by softer flexible material and is had a flat basically clamping profile 22.In the present embodiment, this clamping profile adjustment device 20 can be clipped on the fixed claw 12.Surface with clamping profile 16 opposite placements fixed claw 12 clamping profile adjustment device 20 has ripple, and it can replenish clamping profile 16, makes when clamp 10 holding workpieces, and clamping adjuster 20 is indeformable so that the clamping meeting of workpiece unclamped.Though only represent a fixed claw 12 and movable pawl 14 clamping profile adjustment device 20 is installed, generally when wanting adjustment profile, each pawl all can be installed clamping profile adjustment device.

Fixed claw 12 is fixedlyed connected with fixed claw handle or lever arm 28.Fixed claw 12 utilizes a long connector 30 to be connected with fixed claw handle 28.In the present embodiment, the connector of this length is generally rear end or the inner rectangular-shaped piece that extends to the inner of fixed claw handle from fixed claw 12.This fixed claw handle 28 curves crank shape with respect to the connector of this length.Best, this fixed claw handle 28 curves crank shape with respect to the connector of this length with 30 to 90 angles of spending.In an illustrated embodiment, fixed handle 28 approximately becomes 45 degree with the connector 30 of this length.

Movable pawl 14 can move along the connector 30 of this length.The rear end of movable pawl 14 or inner terminal form cam face 32.This cam face 32 engages with the cam reaction surface 34 that connector 30 by this length forms.This movable pawl 14 comprises a pair of side part 35 (stacked), represents a side part that separates with clamp 10 among Fig. 3.As previously mentioned, omit uppermost side part 35 (stacked) among Fig. 1 and 2, the feasible inner body that can see clamp 10.Side part 35 is the plane layer overlapping piece, each laminates comprises the first of the profile with clamping profile 18 and towards the back of first, extends to and the free-ended second portion 36 that utilizes the fulcrum pin 40 that is fixed in the corresponding hole 41 (Fig. 3) that forms in the part of side to be connected with movable cleft hand bright 38 rotationally.The second portion 36 of side part 35 separates, and holds the connector 30 of this length betwixt, also has enough big gap, and movable pawl 14 is moved along the connector 30 of this length.

This movable pawl handle 38 can around fulcrum pin 40 rotate and have fixedly connected with handle finger cam 42 arranged, make it and can rotate around this fulcrum pin with handle.There is the tooth sliding shoe 44 that has in the gap between finger cam 42 and the second portion 36 that is placed on side part 35 to engage.Sliding shoe 44 has and the flat basically surface that the opposite placement of flank is arranged that has finger cam 42 to engage and engage with the cam reaction surface 46 that is formed by long connector 30.This cam reaction surface 46 is relative with cam reaction surface 34.This

cam reaction surface

34,46 can parallel spaced apart relation extend or draw close towards fixed claw 12.

The second portion 36 of side part 35 forms corresponding stop-surface 52.Stop-surface 52 is configured in the end adjacent with hole 41 of the second portion 36 of side part 35, but and cooperate with stop-surface 54 on being located at fixed handle 38, but the restriction fixed handle leaves the rotational motion of fixed handle 28.

But fixed handle 38 has chamber 56.The push and pull system that comprises link member 58 is rotatably mounted on the fulcrum pin 60 that is placed in the chamber 56.Fulcrum pin 60 passes through link member 58 in the contiguous position that is placed on first end 59 of the link member in the chamber 56.An offset member is also being placed in this chamber 56, and it is extension spring 62 in the present embodiment.One end of extension spring 62 is connected with first terminal 59 of link member 58, but the other end is connected with the pin 64 that is fixed in chamber 56 on the fixed handle 38.

Fixed handle 28 has chamber 68, but it is general relative with the chamber 56 in the fixed handle 38.Second end of link member 58 has guide finger 70.But fixing and fixed

handle

28,38 is placed in the common plane, and link member 58 extends between this handle, is that the part that is connected with handle is placed on that plane at least.

Guide finger 70 engages with guide rail, and it is the gathering sill that forms in fixed handle 28 in the present embodiment.This guide finger 70 is placed in this gathering sill.This gathering sill comprises the first, and inside is in the part 72 of length direction extension; The second, the outside is in the part 74 of length direction extension and the coupling part 76 of the inner of outer end that is connected first 72 and second portion 74.As shown in FIG. 1, but each first 72 and second portion 74 extend at the length direction of fixed handle 28, but coupling part 76 is in the horizontal expansion of the length direction of fixed handle 28.In the present embodiment, first 72 and second portion 74 in series extend abreast with the outer end of the first 72 on the inner opposite that is placed on second portion 74, and coupling part 76 is an arc, so that sell 70 motions between first 72 and second portion 74.Coupling part 76 is being connected second portion 74 a little with the downstream of the end of long connector 30 and first 72 immediate second portions.Like this, when guide finger 70 was positioned at that end of second portion 74 under the influence of extension spring 62, it can not be drawn in the coupling part 76.

Guide finger 70 can be arranged in the first 72 of gathering sill and of second portion 74 selections, to determine the range of movement of second pawl 14 with respect to first pawl 12.Can find out referring to Fig. 1, when guide finger 70 when first 72 neutralization of gathering sill does not have power to be added on the

handle

28,38, extension spring 62 is offset to end with long connector 30 immediate firsts with guide finger.In this position, but link member 58 is placed fixed handle 38, and second pawl 14 is positioned at from fixed claw 12 farthest, as first scope of movable pawl towards the fixed claw motion.This is position shown in Figure 1.As following illustrating in greater detail, if the user wants from this open mode pawl to be enclosed on the workpiece, the end that then can force

handle

28,38 makes movable pawl 14 towards fixed claw 12 motions together.

Referring to Fig. 2, when guide finger 70 when second portion 74 neutralization of gathering sill does not have power to be added on the

handle

28,38, extension spring 62 makes guide finger be offset to the end of the second portion of the connector 30 of approaching length.In this position, but link member 58 is placed fixed handle 38, and second pawl 14 is positioned at from fixed claw 12 farthest, as second scope of movable pawl towards the fixed claw motion.This is position shown in Figure 2 and determines maximum opening between the pawl 12,14.As following illustrating in greater detail, if the user wants from this open mode pawl to be enclosed on the workpiece, the end that can force

handle

28,38 together.Second pawl 14 in second range of movement the position near fixed claw 12 be similar to position shown in Figure 1, some are overlapping although two scopes have.The user can move guide finger 70 by coupling part 76 simply and set range of movement between first and

second parts

72,74 of gathering sill.

Referring to Fig. 1, when wanting between

pawl

12,14 holding workpiece and workpiece, the user to be enclosed in the clamping profile 16 of

pawl

12,14, when seeming too big in the space that forms between 18, can make guide finger 70 move and enter in the second portion 74 by coupling part 76 along the first 72 of gathering sill.In the space that forms between the

clamping profile

16,18, then user's extrusion handle 28,38 if workpiece can be packed into, but make fixed handle 38 towards fixed handle 28 motions.But this motion makes fixed handle 38 overcome the biasing force that is produced by extension spring 62, rotates on fulcrum pin 60, thereby extension spring is extended.But this rotational motion of fixed handle 38 makes the movable pawl 14 by long connector 30 guiding slide towards fixed claw 12.But the sliding motion of the rotational motion that centers on fulcrum pin 60 of fixed handle 38 and the movable pawl of following 14 continues until

pawl

12,14 engages the motion that stops movable pawl with workpiece till.In this sliding motion process of movable pawl 14, but fixed handle 38 does not rotate on fulcrum pin 40 and guide finger 70 remains on the end of the first 72 of the gathering sill of the connector 30 of approaching length.

In

case pawl

12,14 engages with workpiece, continue

extrusion handle

28,38 and make the first 72 of guide finger 70 beginnings along gathering sill, 76 motions towards the coupling part.But this makes fixed handle 38 rotate around fulcrum pin 40.This rotational motion has made finger cam 42 act on the cam reaction surface 46 by sliding shoe 44.Have finger cam 42 to rotate with respect to cam reaction surface 46, on the general direction of fixed handle 28, the end that promotes the second portion 36 of side part 35 leaves fixed claw 12.When cam face 32 acts on the cam reaction surface 34, to rotate by the retained part that makes movable pawl 14, this motion can make the retained part of movable pawl 14 rotate towards fixed claw 12.There are the relative position of finger cam 42 and cam face 32 and shape to make that sizable moment of torsion is added on the workpiece, and is added on the

handle

28,38, keeps the power of the clamping of workpiece to reduce after but fixed handle 38 rotates certain distance around fulcrum pin 40.This cam structure illustrates in greater detail in applicant's the U.S. Patent application of just examining of announcing as US2009/0056510.

As previously mentioned, in the maximal clearance of conduct first range of movement if the workpiece of clamping can not be packed between the

pawl

12,14, the user can pass through coupling part 76, and guide finger 70 motions are gone in the second portion 74 of gathering sill.When not having power to be added on the

handle

28,38, extension spring is offset to full open position shown in Figure 2 with clamp 10.From this position, make the process of

pawl

12,14 holding workpieces the same described with reference to Figure 1.

The adjacent guide rail of hand retained part with fixed handle 28 is set, makes the user catch instrument by the hand retained part, guide finger 70 is moved between targeting

part

72,74 with the action of a hand with hand.

It is not excessive that two range of movement preparing movable pawl 14 can make clamp 10 the orientation intervals similar or identical and between them of starting position (position illustrated in figures 1 and 2)

handle

28,38 that makes in each scope.If do not have the second portion of guide rail and guide finger 70 to be placed in the first, and pawl is in fully open position shown in Figure 2, but then fixed handle 38 tiltables depart from fixed handle 28, makes excesssive gap between the free end of handle.This operation that can make clamp is the operating difficulties of a hand or impossible particularly, the full-size of the aperture between the pawl that restriction is typically provided with.Described embodiment can make movable pawl with respect to big many of the range of movement of fixed claw, and keeps the user to operate easily.

The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model, any those skilled in the art, in not breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.

Claims

1. hand operated gripping tool, it comprises first pawl of fixedlying connected with first cleft hand handle, with respect to described first pawl motion, make the common formation of described first and second pawls hold second pawl in the variable-sized gap of the part of wanting clamping therebetween, be used for second the cleft hand handle of mobile phase with described second pawl is rotationally connected to described second pawl of described first pawl, be connected with described second cleft hand handle rotationally and have can be selectively be located at described first cleft hand handle on the push and pull system of the targeting part that engages of a plurality of targeting parts, described targeting part with form described second pawl towards the first described targeting part of first scope of described first pawl motion with form described second pawl and engage towards second described targeting part of second scope of described first pawl motion.

2. hand operated gripping tool as claimed in claim 1, it is characterized in that the described first cleft hand handle has the guide rail of described targeting part, described guide rail comprise described first and second targeting parts with in the horizontal expansion of described first and second targeting parts and be connected both coupling part.

3. hand operated gripping tool as claimed in claim 2 is characterized in that described first and second targeting parts extend and described coupling part extends to stub area with nearest described second targeting part of described first pawl from the stub area from described first pawl described first targeting part farthest at the length direction of described first cleft hand handle.

4. as claim 2 or 3 described hand operated gripping tools, it is characterized in that described coupling part overarches towards the free end of described first cleft hand handle.

5. as claim 1,2 or 3 described hand operated gripping tools, it is characterized in that it also comprises is connected between described second cleft hand handle and the described push and pull system, be used to be offset the offset member of described second pawl to the corresponding starting position of described first and second range of movement, in this starting position, for corresponding range of movement, described second pawl from described first pawl farthest.

6. as claim 1,2 or 3 described hand operated gripping tools, it is characterized in that it comprises the long elements that connects described first pawl and described first cleft hand handle, described second pawl can move and described first cleft hand handle and described long elements form 30 °-90 ° angle basically along described long elements.

7. hand operated gripping tool as claimed in claim 6, it is characterized by, described second cleft hand handle has according to the motion of described second cleft hand handle towards described first cleft hand handle, with counteractive second the cleft hand handle cam of the first cam reaction surface that forms by described long elements, described second pawl has a cam face, be used for resisting the second cam reaction surface that described long elements forms under the reaction of described second cleft hand handle cam and the described first cam reaction surface, the reaction of described cam face and the described second cam reaction surface causes the rotational motion of described second pawl towards described first pawl.

8. as the described hand operated gripping tool of claim 1,2 or 3, it is characterized by, described second pawl rotates with respect to described second cleft hand handle on the fulcrum pin that is located at described second cleft hand handle end.

9. as the described hand operated gripping tool of claim 1,2 or 3, it is characterized by, described targeting part comprises corresponding elongate slots.

10. hand operated gripping tool as claimed in claim 9 is characterized by, and described elongate slots is connected along described first cleft hand handle with substantially parallel spaced relationship.

11. as the described hand operated gripping tool of claim 1,2 or 3, it is characterized by, described range of movement is overlapping.

12. as claim 1,2 or 3 described hand operated gripping tools, it is characterized by, in described first range of movement, described second pawl moves between the maximum open mode of described pawl and described maximum open mode and minimum open mode position intermediate, in described second range of movement, described second pawl moves between described maximum open mode and described minimum open mode position intermediate and described minimum open mode.

13. as the described hand operated gripping tool of claim 1,2 or 3, it is characterized by, in the corresponding starting position of described range of movement, the direction of described first cleft hand handle and described second cleft hand handle is basic identical.

14. hand operated gripping tool as claimed in claim 13 is characterized by described first cleft hand handle and described second cleft hand handle, extends in described corresponding starting position with substantially parallel spaced relationship.

15. as claim 1,2 or 3 described hand operated gripping tools, it is characterized by, each of described first and second cleft hand handles all comprises the described hand retained part of a hand retained part and contiguous described first cleft hand handle of described a plurality of targeting part, make that the user can be with described hand retained part, catch manual a work of the hand of described instrument, between described targeting part, make described targeting part motion.

16. as claim 1,2 or 3 described hand operated gripping tools, it is characterized by, each described targeting part is made in use, moves along the targeting part that is connected with it under the reaction force that described targeting part produces when described first and second described parts of pawl clamping.

17. as the described hand operated gripping tool of claim 1,2 or 3, it is characterized by, described first and second cleft hand handles put in one plane and described push and pull system on described plane, between the described first and second cleft hand handles, extend.