CN101151126A

CN101151126A - Adjustable ratchet wrench

Info

Publication number: CN101151126A
Application number: CNA2005800488940A
Authority: CN
Inventors: T·金斯基
Original assignee: INFINITE CONSULTATION GROUP CO Ltd
Current assignee: INFINITE CONSULTATION GROUP CO Ltd
Priority date: 2005-03-03
Filing date: 2005-03-03
Publication date: 2008-03-26
Also published as: CA2599732A1; WO2006096157A1; MX2007010768A

Abstract

A ratchet device comprises a ratchet body and an adjustable dimension opening member to accommodate varying size bolt heads or nuts. The adjustable dimension opening member is rotationally connected to the ratchet body. In one specific form, the adjustable dimension opening member comprises two opposing arms, with at least one of the arms being translatable toward the other arm thereby adjusting an opening between the two arms. In an alternative form, the adjustable dimension opening member is selectable between two configurations, with one configuration permitting exclusive clockwise rotation relative to the racket body and a second configuration permitting exclusive counterclockwise rotation relative to the racket body.

Description

Adjustable ratchet wrench

Technical field

The present invention relates to a kind of instrument that removes screw bolt and nut, particularly a kind of adjustable pawl wrench instrument that is used to remove bolt or nut that holds all size bolt head and nut.

Background technology

Various instruments are used to tighten or release bolt and nut.Such two kinds of instruments are end openings type spanner (wrench) and terminal closed type spanner.Two types of spanners all have a special opening to hold the bolt head or the nut of corresponding size.In order to hold the bolt head or the nut of different sizes, people need have the different spanner of the corresponding openings of sizes of various differences.

Depend on the adjusting of wrench opening, a progress that is better than independent end openings type or terminal closed type spanner is that adjustable spanner has bolt or the nut that an adjustable opening features holds all size.

Another kind of alternative end openings type and the designed adjustable spanner of terminal closed type spanner are box spanners, and it comprises that a ratchet and a sleeve pedestal hold the removable sleeve of multiple different sizes.Each sleeve all is bolt head or the nut that a specific size is held specific size.The advantage of box spanner is that its ratchet feature allow to select it to carry out with respect to pinch bar or clockwise or anticlockwise motion, provides a kind of ratchet well known in the art to move thus the people is loosened fast or tights a bolt or nut.

The shortcoming of traditional adjustable crescent wrenches is that they can not provide a kind of ratchet effect.Therefore, this spanner can not allow the people by fast and easily tightening or release bolt or nut above needed radian or angle around bolt or nut rotation.The shortcoming of traditional box spanner is, because sleeve is uncontrollable, people need specific sleeve to be used to want bolt or nuts of each different size of regulating.Because bolt or nut come from multiple different size and comprise English unit and metric unit, in order to hold the bolt or the nut of those different sizes, people need assemble a large amount of sleeves in his or her configuration.

Therefore, need a kind of improved adjustable instrument to come fast and easily to remove screw bolt and nut in this area.

Summary of the invention

The present invention relates to the adjustable tool of a kind of for example ratchet (ratchet) device, this instrument has the opening features of a ratchet body and an adjustable dimension to hold the bolt head or the nut of all size.The opening features of this adjustable dimension rotatably is connected on the ratchet body.Easily, the opening features of adjustable dimension can be selected with respect to main body clockwise or be rotated counterclockwise.For example, the opening features of adjustable dimension can allow it can only select a kind of structure among the structure of rotation counterclockwise with respect to main body with respect to main body around right handed structure and another kind at a kind of.

In a kind of ad hoc structure of the opening features of this adjustable dimension, these parts comprise the fork arm of two positioned opposite, and wherein at least one fork arm is to move towards the another one fork arm, regulates two openings between the fork arm thus.Easily, the adjustable openings between two fork arms forms or holds the bolt head and the nut of all size.In a kind of further structure, the adjacent to each other or separation of the mobile rotationally fork arm of wing screw.

And at another kind further in the structure, each adjustable fork arm all has a V-arrangement cross-section to assign to hold various screw bolt and nut faces.In another structure, each fork arm all has a cannelure at the place, summit that is formed at each V-arrangement cross section face portion, is used for holding various screw bolt and nut faces.

In another kind of structure of the present invention, be used for tightening or the instrument of release bolt or nut comprises the opening features of the adjustable dimension of a fork arm that has two positioned opposite.In the fork arm at least one can move towards another fork arm, regulates two openings between the fork arm thus.Each fork arm all has a V-arrangement cross section part.

Description of drawings

The present invention introduces with reference to the accompanying drawings in more detail:

Fig. 1 is the plan view according to adjustable ratchet of the present invention;

Fig. 2 is the perspective view of the ratchet among Fig. 1;

Fig. 3 is the cutaway view of the ratchet 3-3 along the line among Fig. 1;

Fig. 4 is the cutaway view of 4-4 along the line of the adjustable dimension opening features of adjustable ratchet shown in Figure 3;

Fig. 5 is the exploded view of ratchet shown in Figure 2; And

Fig. 6 is the parts decomposition view of ratchet according to another embodiment of the present invention.

The specific embodiment

Shown in Fig. 1-5, ratchet 10 comprises a handle 12, and this handle forms the main body of this ratchet, also comprises an adjustable opening features, and this opening features is provided with two

adjustable fork arms

20,22 in relative

mode.Fork arm

20,22 is arranged in the shell 14, this shell can be optionally with respect to handle 12 or positive hour hands or be rotated counterclockwise.

Handle 12 is by two

exterior handle members

12a, 12b and two

intermediate handle members

12c, and 12d forms.A plurality of rivets 15 are installed in one corresponding in a plurality of holes 17 on the handle 12.

Handle 12 can be improved to and comprise a cutter head dish, and this cutter head dish can hold various cutter heads, for example driver bit or hexagonal cutter head.Further, the end of

relative fork arm

20,22 on handle, handle 12 can be improved to and comprise a cutter head retainer along the handle longitudinal extension.This cutter head retainer can hold various cutter heads and comprise the cutter head that can be arranged in the cutter head dish.

Gear 16 is attached on the shell 14.Rocking bar 18 is arranged between exterior handle members 12a and exterior handle members 12b, can be around rivet 11 revolutions of passing hole 13.Rocking bar 18 can optionally be arranged in two positions one of them.First position, described as Fig. 1 and Fig. 2, rocker surfaces 18a, 18b respectively with a plurality of face of gear 16a, an adjacency among the 16b.Because this abutment surface, shell 14 can only rotate with counter clockwise direction as shown in arrow 19, and with arrow 19 rightabout clockwise directions rotations.With this structure, owing to keeping shell 14 quilts and the handle 12 of this tunable component to be fixed together, people can use ratchet 10 to tight a bolt and nut, and these will obtain further detailed description below.

With this structure (not shown) that replaces, rocking bar 18 can be around rivet 11 revolutions so that rocking bar face 18c and 18d can distinguish adjacent teeth wheel face 16a and 16b.With this structure, the rightabout that shell 14 is allowed to rotation arrow 19 indications is a clockwise direction.With this structure, ratchet 10 can be used to unclamp bolt or nut.

At one end, axle 24 is disposed in the axis hole 26 and is fixed on the fork arm 20, and at an other end, this slidably is arranged in the axis hole 28 of fork arm 22.Screw thread 32,34 is arranged on the thumbscrew 30, they respectively with

fork arm

20,22 on screwed

hole

36,38 cooperate.The rotation of thumbscrew 30 can allow

fork arm

20,22 along with fork arm 22 next close to each other or separation along moving of axle 24.Because the result of the rotation of thumbscrew 30, the diameter opening that

fork arm

20,22 has formed various sizes holds the bolt head and the nut of all size.

As Fig. 3 and Fig. 4,

fork arm

20,22 has a wide V-arrangement cross section, and cannelure 40,42 forms at each vertex position in the V-arrangement cross section of

fork arm

20,22 respectively.Fork arm surfaces 20a-20e is set to be adjusted to the surface that is fit to contact various bolt heads or nut with 22a-22e.For example, the wedge angle or the turning of bolt head or nut can be disposed in the cannelure 40,42, and other faces of bolt head and nut are arranged as and face 20a, 20e and 22a, the selected part contact of 22e.Selectable, if bolt head or nut portion have been threaded off face 20b, 20c, 20e or 22b, contact bolt head or nut that 22c, 22d can physics.The rotation of thumbscrew 30 as mentioned above, can well be adjusted

fork arm

20,22 so that face 20a-20e and 22a-22e can be fully fasten around bolt head or nut clip and carry out tightening or loosen them.

In a selectable described embodiment,

fork arm

20,22 can not comprise cannelure 40,42 and be replaced by each true V-arrangement summit of fork arm formation.

As mentioned above,

fork arm

20,22 comprises face 20a, 20e and 22a, and 22e contacts one respectively and the bolt head or the nut of not threading off.Therefore, ratchet 10 can be counted as 4 spanners, and two faces of each

fork arm

20,22 contact bolt head or nut form four contact points altogether.In an alternate embodiments,

fork arm

20,22 is changed to an additional face, and this face is adjusted to fitted bolt head or nut.For example,

fork arm

20,22 can each comprise that all one or two additional face comes fitted bolt head and nut, forms the spanner of six or eight contact points thus respectively.Selectively,

fork arm

20,22 can form any amount of needed contact point and comprises 12 or 16 points.

Yet in another embodiment, the length of

fork arm

20,22 can be extended the adjustment of holding screw bolt and nut, and this is that the length than short fork arm is beyond one's reach.

In use, ratchet 10 can be adjusted the bolt head that holds all size and nut and it is tightened or loosens.The user adjusts rocking bar 18 tightening structure and loosen between the structure and select at ratchet 10.Thumbscrew 30 is by positive hour hands or be rotated counterclockwise and form a needed openings of sizes up to fork arm 22 and hold bolt head or nut and it is tightened or loosens.Next, ratchet 10 is used for tightening or release bolt or nut as same traditional box spanner.

Now as Fig. 6, identical among the embodiment of the Reference numeral of similar components and Fig. 1-5 and only be to have increased by 100 on its basis wherein, in an alternate embodiments, ratchet 110 comprises a bar 121 and a rotating shaft 123.Rotating shaft 123 is passed hole 113 and is meshed with its hexagonal surfaces therein.Thereby swingle 121 rotates rocking bar 118 to be selected to make

fork arm

20,22 turn clockwise with respect to handle 120 or be rotated counterclockwise.

Those of ordinary skills can learn clearly that the application's adjustable ratchet 10 provides previous not available advantage of instrument and characteristic now.For example, the application's ratchet 10 provides bolt head and the nut that a kind of opening features of adjustable dimension holds all size.Further, the application's ratchet 10 provides apace and ratchet action is easily quickened bolt or nut screwing clamping or loosened by its gear and rocker elements.

Further, comprise the uniqueness and the novel design of the fork arm of V-arrangement cross section and cannelure, can hold various screw bolt and nut faces.As a result, the application's ratchet still less may make bolt head or nut thread off, and can hold erose bolt head and nut, and for example those have become the bolt head and the nut of threading off or damaging.

In addition, adjustable pawl wrench of the application can be made by the different suitable material that comprises various steel or alloy material.Further, spanner according to the present invention can have the main body and the decreased food of all size according to needed way usefulness and profile.

Though the description that the application is detailed the preferred embodiments of the present invention, obviously, those skilled in the art can carry out a lot of modifications and variations to the present invention, these do not deviate from spirit and scope of the invention.

Claims

1. a pawl device comprises: a ratchet body; Hold the bolt head or the nut of all size with the opening features of an adjustable dimension, the opening features of described adjustable dimension is rotatably connected on the described ratchet body.

2. pawl device as claimed in claim 1, the opening features that it is characterized in that described adjustable dimension are with respect to described main body selectively clockwise or be rotated counterclockwise.

3. pawl device as claimed in claim 1, the opening features that it is characterized in that described adjustable dimension can be selected two kinds of structures, a kind of described structure allows only to turn clockwise with respect to described main body, and another kind of described structure allows only to be rotated counterclockwise with respect to described main body.

4. pawl device as claimed in claim 1 is characterized in that the opening features of described adjustable dimension comprises two relative fork arms, and at least one of described fork arm can move towards another and regulate two openings between the fork arm.

5. pawl device as claimed in claim 4 is characterized in that two relative fork arms can be towards moving each other.

6. pawl device as claimed in claim 4 is characterized in that each described fork arm has a V-arrangement cross section part.

7. pawl device as claimed in claim 6 is characterized in that each described fork arm has a cannelure structure, and the summit separately that this groove passes each described V-arrangement cross section part forms.

8. pawl device as claimed in claim 6 is characterized in that described V-arrangement cross-section branch comprises and the bolt head that will regulate or the face of nut adjacency.

9. pawl device as claimed in claim 1 is characterized in that the opening features of described adjustable dimension can be changed bolt head or the nut that sleeve holds all size.

10. tighten or the instrument of release bolt or nut for one kind, described instrument comprises: the opening features of an adjustable dimension, it comprises two relative fork arms, in the described fork arm at least one can move towards described another fork arm and regulate two openings between the fork arm, and each described fork arm has a V-arrangement cross section part.

11. instrument as claimed in claim 10 is characterized in that each described fork arm has a cannelure structure, the summit separately that this groove passes each described V-arrangement cross section part forms.

12. instrument as claimed in claim 10 is characterized in that described V-arrangement cross-section branch comprises and the bolt head that will regulate or the face of nut adjacency.