CN1152770C

CN1152770C - Universal spanner

Info

Publication number: CN1152770C
Application number: CNB001216570A
Authority: CN
Inventors: 马克斯・帕斯布里希; 马克斯·帕斯布里希
Original assignee: Lacrex SA
Current assignee: Lacrex SA
Priority date: 1999-05-25
Filing date: 2000-07-17
Publication date: 2004-06-09
Anticipated expiration: 2020-07-17
Also published as: CN1334176A; CA2335504A1; GB0026503D0; WO2000071300A1; GB2370245A

Abstract

The present invention relates to a universal spanner which has a handle and a spanner body, wherein the spanner body has reciprocating jaw members and teeth for holding parts. A connection end of the handle has teeth which are arranged in a circle, the teeth of the handle are cooperated with the teeth on a gear rack which is arranged on one jaw member, wherein the gear rack is moved in the other jaw member. A spring is fixed on the handle and the other jaw member, and a plug is pressed on a lower circular surface of the other jaw member so as to fix the handle to different pivoting positions.

Description

Universal spanner

Technical field

The present invention relates to a kind of universal spanner.This spanner has the wrench body of an opening, and this body is installed on handle one end or on a device of handle one end, is used for clamping fast and keeping, and discharges a bolt head or similar connector or bar, pipe fitting etc. then.

Background technology

Yet this type of known spanner all has the defective that can not clamp, keep and discharge circular bolt head or similar connector and bar and pipe fitting fast securely.

Summary of the invention

The object of the present invention is to provide a kind of universal spanner, its wrench body can clamp, keeps and discharge difformity and size even circular bolt head and similar connector fast securely.

This purpose of the present invention is realized that by a universal spanner it has the handle end of being installed on or at least one the open-end wrench body on a device of handle end, and described wrench body is rotating in a clamping plane with respect to described handle.One is connected in handle, and perpendicular to the clamping plane.First and second jaw member are mounted in the clamping plane and can pivot around described axle, and guide rail is arranged on described first jaw member and perpendicular to described clamping plane and extends.One tooth bar is arranged on described second jaw member and perpendicular to second jaw member.Tooth bar can vertically move and have the tooth towards handle in guide rail.A series of teeth are arranged on the end of handle, and it is one circular-arc that described tooth is arranged to, and the mid point of circular arc overlaps with described axle longitudinal axis.Tooth engagement on these teeth and the tooth bar.

Have been found that because handle has a toothed linking part and tooth has rounded grooves and projection, so be effective especially.Wrench body has two jaw member that can move back and forth.First jaw member can be in being installed in handle one is rotated and is remained on clamped position by a spring.Second jaw member has groove and projection, and they can cooperate with those parts on the linking part.Two jaw member all have a plurality of grooves in the face of on the inboard mutually at it, and guarantee and can be placed on preferably on the part of the clamping of wanting.

In order to adapt to traditional hex nut, these grooves have a plurality of surfaces that comprise 120 degree and constitute each bar limit of an equilateral triangle.

The inboard of jaw member all has many seamed edges to guarantee to be clamped in well on the circular pieces such as pipe.The jaw member inboard also has a plurality of teeth to form clamping surface.Suitable formation and arrangement tooth and spring can form ratchet form locking between jaw member and handle.

Another advantage comes from a spring, and flexible fastening is gone up or be installed in to the axle that this spring one end is installed on the handle on the pin of one on the handle.The spring other end is installed on the jaw member that is kept pivotally by axle.Handle and jaw member thereby can remain on the desired position to guarantee clamping one bolt or other connector reliably.

When linking part is connected on the handle end by one in the wrench body clamping plane, can enlarge the possible purposes of this universal spanner of the present invention.With this structure, linking part can rotate perpendicular to the clamping plane, and is just such as what disclosed in the Swiss Patent 382,044.Thereby this structure is no longer shown and do in more detail and to describe at this.

Description of drawings

Below in conjunction with accompanying drawing preferred embodiment of the present invention is described in detail, wherein:

Fig. 1 is the plane of universal spanner,

Fig. 2 is the longitdinal cross-section diagram of universal spanner shown in Figure 1,

Fig. 3 is the plane of first jaw member, and

Fig. 4 is the plane of second jaw member.

The specific embodiment

This universal spanner has an open-end wrench body 2 and one handle 1.Handle 1 has a toothed linking part 14, and these teeth are made of radiussed protuberance 21 and

rounded grooves

19,20 and are arranged to circular-arcly, and the center of this linking part overlaps with the longitudinal axis of rotating shaft 5.Wrench body has two reciprocating jaw member 15,16.Jaw member 15 has a plurality of

projections

25,26,27 and groove 28 on a sliding rack 30, and this sliding rack is directed in jaw member 16.These projections and groove part arrange point-blank and with linking part 14 on projection and groove coupling and

engagement.Support

35,36 be connected on the jaw member and have a plurality of installing holes and all be installed in pivotally the axle 5 on.

Support

35,36 is vertical with a guide surface, and this guide surface extends with jaw member 16 with meeting at right angles and is formed for a guide rail 29 of tooth bar 30 with support 35,36.Meet at right angles ground and be connected in the not toothed rear side of tooth bar 30 of jaw member 15.Jaw member 16 forms the fork-shaped closure member of the band tooth linking part 14 of handle 1 with the

support

35,36 of its side direction.The

lower end

31,32 of

support

35,36 is semicircle, and engages with a latch 33, and axle sleeve 34 encirclements that this latch is made by an elastomeric material also are fixed in the hole on the handle 1.Jaw

member

15,16 all is fixed on the different pivot positions with respect to handle 1 because latch 33 near and be pressed on the support

lower end

31,32.

In order to guarantee to be positioned on a connection piece that will catch, an end of a spring 37 is installed on the axle 5 in the handle 1 and the other end 38 is installed on the jaw member 16.On another embodiment shown in broken lines, spring 37 is installed on the latch 33.

The opposed facing sidepiece of

jaw member

15,16 all has groove 15 ', 16 '.Clamping surface all is provided with tooth or rib 15 " ', 16 " '.Angle 15 ", 16 " all is arranged on and turns forward extended surface to the transition portion of the straight extended surface of jaw member from groove.The effect of surrounding circular pieces is played at angle 15 ", 16 ".In order to improve handle, prehension end is furnished with a cladding 1 ' in addition, and this cladding is made by rubber or plastic material, and has a forming part 1 " and a link 1 " '.

During operation, the linking part of the handle 1 that turns right is to open direction moved jaw spare 15,16.Therefore this universal spanner can be positioned on the connector of different size, owing to can be by turning handle 1 and increase easily in the space between the jaw member and the part that will be held, be very easily so this placement is operated.When the linking part of handle when jaw member is rotated left in the opposite direction, jaw member 15, the 16 engageable parts of wanting clamping.

For the ease of the placement and the clamping of the part that will fix, the user can be along preventing that the direction that jaw member 16 is opened is pressed in 39 places with its thumb.The pressure of spring 37---jaw member is moved to an open position because this has overcome, and when unclamping thumb,

jaw member

15,16 can be clamped the part that will fix.

Yet the present invention is not limited in shown universal spanner.Adjustable jaw member formula wrench body also can be installed on the handle to rotate around an axis.Similarly, on a handle several wrench body can be set.Wrench body can also constitute linking part as an interchangeable part to adapt to other universal spanner.

Claims

1. universal spanner, has at least one the open-end wrench body on the handle end of being installed on, with the part that clamping one really and apace will be clamped, described wrench body is rotating in a clamping plane with respect to described handle, and described improvement comprises:

The axle vertical with described clamping plane,

Be mounted to first and second jaw member that the described axle in enclosing described clamping plane pivots,

The guide rail that is arranged on described first jaw member and extends perpendicular to described clamping plane,

Be arranged on described second jaw member and vertically be connected to tooth bar on described second jaw member,

Described tooth bar guides the tooth that can vertically move and have towards described handle in described guide rail, and

It is one circular-arc that tooth on a series of described ends that are arranged on described handle, described tooth are arranged to, and described arcuate midway point overlaps with described axle longitudinal axis, and the described tooth on described tooth and the described tooth bar meshes.

2. universal spanner as claimed in claim 1 is characterized in that, described first and second jaw member have mutually the inboard of facing, having groove.

3. universal spanner as claimed in claim 2 is characterized in that, described groove comprises the surface that contains 120 degree angles and constitute each bar limit of equilateral angular.

4. universal spanner as claimed in claim 2 is characterized in that, described opposed facing inboard has many seamed edges.

5. universal spanner as claimed in claim 2 is characterized in that, described opposed facing inboard has rib structure.

6. universal spanner as claimed in claim 1, it is characterized in that, also comprise between the described tooth that is formed on the described tooth bar and the teeth groove between the described tooth on the described end of described handle, described tooth on the described end of the described tooth on the described tooth bar, described handle and described teeth groove all are fillets.

7. as each described universal spanner among the claim 1-6, it is characterized in that described guide rail comprises groove, described groove has the side direction support, and described support extends beyond described tooth bar and forms fork-shaped extension around the described end of described handle.

8. universal spanner as claimed in claim 1, it is characterized in that described guide rail comprises groove, described groove has the side direction support, described support extends beyond described tooth bar and forms a fork-shaped extension around the described end of described handle, and the cross section of described groove is tapered.

9. universal spanner as claimed in claim 7 is characterized in that, also comprises a latch that flexibly is fixed on the described handle, and at least one end of described side direction support is the circle that can engage with described latch.

10. universal spanner as claimed in claim 1, it is characterized in that, described guide rail comprises the groove with side direction support, described side direction support extends beyond described tooth bar and becomes a fork-shaped extension around the described end of described handle, also comprises the spring that is connected on described handle and described first jaw member.

11. as each described universal spanner among the claim 1-6, it is characterized in that, also comprise the spring that is connected on described axle and described first jaw member.

12. universal spanner as claimed in claim 1 is characterized in that, also comprises the cladding of being made by rubber or plastic material, described cladding has a plurality of forming parts and a link.