CN209774482U

CN209774482U - Fast-rotating open end wrench

Info

Publication number: CN209774482U
Application number: CN201822045619.0U
Authority: CN
Inventors: 李逸民
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-12-06
Filing date: 2018-12-06
Publication date: 2019-12-13
Anticipated expiration: 2028-12-06

Abstract

The utility model provides a fast open spanner who changes, combine a first jaw and a second jaw of immobilization at a basal portion, a movable jaw is disposed to this second jaw, and the relative second jaw of this movable jaw is at a shift position and a position of use round trip rotation. The movable jaw is provided with an operating surface, the operating surface comprises a first surface and a second surface, and the first surface is intersected with the second surface to form an angle of about 120 degrees +/-10 degrees. When the movable jaw is in the use position, the first surface of the movable jaw is matched with the second surface to contact two sides of a single angle of a hexagonal structure body, and the movable jaw quickly rotates around and idles to wait for reuse.

Description

Fast-rotating open end wrench

Technical Field

The present invention relates to hand tools and, more particularly, to a fast-rotating open end wrench improved from U.S. patent No. 8,826,783.

Background

A conventional open end wrench has a base portion integrally formed with two jaws. The jaws are spaced apart from each other and provide a clinching or clamping action on the hexagonal structure of a screw. The hexagonal structure body can be a nut or the head of a screw, and is provided with three groups of opposite sides, and any group of opposite sides is in contact with the inner sides of the two jaws, so that the open spanner can conveniently drive the screw connector to rotate to perform locking or unscrewing operation.

however, the base and the two jaws are integrally fixed, during the locking or unscrewing process, the open-end wrench leaves the screw-connecting piece, and after the open-end wrench rotates for a certain angle, the two jaws contact the other pair of edges of the hexagonal structure, so that the open-end wrench can be operated to continuously drive the screw-connecting piece to rotate, and the use is very inconvenient.

In order to solve the troubles encountered in the use of the conventional open-end wrench, the industry is continuously researching and developing open-end wrenches which can reversely rotate and rotate quickly without leaving screw connectors. The present invention relates to a wrench, which is not only approved by the inventor of the present invention as "one-way clamping open wrench" in U.S. Pat. No. 8,826,783, but also can be applied to obtain the patent rights of Germany No. 202012102183U1, China No. 202716190U, and China Taiwan No. M439545.

SUMMERY OF THE UTILITY MODEL

However, the continuous research in the field of the manual tool and the spirit of the present utility model, i.e. the designer is not satisfied by himself or herself, and is not subjected to essence refinement, eventually develops a new generation of fast-rotating open end wrench on the basis of the open end wrench.

The utility model discloses improvement aim at: the structure that adopts the contact list angle both sides makes open-ended spanner not only can operate the stable rotation of screwed part, can rotate to certain angle fast again.

In view of the above, the present invention provides a quick-turn open wrench, which comprises a base portion, a first jaw and a second jaw, wherein the first jaw and the second jaw are fixed, the second jaw is provided with a movable jaw, and the movable jaw is capable of rotating back and forth between a moving position and a using position relative to the second jaw;

The method is characterized in that: the movable jaw is provided with an operating surface, the operating surface comprises a first surface and a second surface, and the first surface is intersected with the second surface to form an angle;

When the movable jaw is in the use position, the first surface and the second surface of the movable jaw can be matched with two sides of a single corner of a hexagonal structure body in a contact mode.

the open end wrench of fast commentaries on classics, wherein: the angle is in the range of 120 ° ± 10 °.

The open end wrench of fast commentaries on classics, wherein: the intersection of the first surface and the second surface forms a concave part.

The open end wrench of fast commentaries on classics, wherein: the second jaw has an arcuate aperture that receives a pin through the movable jaw and a resilient member that urges the pin to provide the force required to maintain the movable jaw in the use position.

The open end wrench of fast commentaries on classics, wherein: the elastic member is a compression spring, a compression spring or a plurality of parallel discs.

The open end wrench of fast commentaries on classics, wherein: the inner side of the first jaw is provided with a plane, a first inclined plane, a second inclined plane and an inner angle structure, the first inclined plane and the second inclined plane are matched to form an obtuse angle structure, the obtuse angle structure and the inner angle structure are separated by a convex surface, and the inner angle structure is connected with the side surface of the base.

Therefore, the utility model discloses an open end wrench operation screw connector rotates to the single angle both sides of operation face contact hexagon structure body, the idle running of circling round rapidly waits for reuse.

To further clarify the objects, features and advantages of the present invention, one or more preferred embodiments will be described in detail below with reference to the accompanying drawings.

Drawings

FIG. 1 is a perspective view of a preferred embodiment of a tool having the effect of an open ended wrench.

Fig. 2 and 3 are exploded views of the fixed jaw structure and the movable jaw at different angles.

Fig. 4 is a plan view of a fixed jaw structure in combination with a movable jaw.

Fig. 5 is a sectional view of a portion of a fixed jaw structure in combination with a movable jaw.

Fig. 6 and 7 are views showing the continuous action of the open end wrench to clamp or clamp a suitable screw.

Fig. 8 is a schematic view of an open wrench driving rotation of a screw.

Fig. 9 and 10 are continuous operation diagrams of the open end wrench in reverse rotation and fast idle rotation around the screw joint.

description of reference numerals: a tool 10; a connecting member 11; arrows 11A, 11B; a ratchet structure 12; a head 13; an assembling portion 14; a restriction groove 15; a ratchet wheel 16; a fastener 17; a direction knob 18; a fixed jaw structure 20; a base 22; side 22A; a concave curved surface 22B; an open end 23; a first jaw 24; inner sides 24A, 26A; outer sides 24B, 26B; a second jaw 26; front ends 30, 40; the obtuse-angle structures 31; the flat surfaces 32, 42; a first inclined surface 34; an inner corner structure 35; a second inclined surface 36; a vertex 37; a convex surface 38; the protruding portion 41; a semi-circular surface 43; a curved surface 44; an arc hole 45; a first semicircular groove 46; a second semi-circular groove 48; a movable jaw 50; an operation surface 51; a first face 51A; a second surface 51B; a recess 51C; axes 51D, 56B; the angle 51E; the semicircular plates 52, 54; circumferential surfaces 52A, 54A, 56A; apertures 52B, 54B; the pins 53; an elastic member 55; a semi-cylinder 56; a trench 58; a screw 60; hexagonal structures 65.

Detailed Description

Fig. 1 depicts a preferred embodiment of a tool 10 illustrating a specific configuration. The tool 10 has a connecting member 11, the connecting member 11 connects a ratchet structure 12 and a fixed jaw structure 20 at different ends of the tool 10, and a movable jaw 50 is disposed on the fixed jaw structure 20.

In the figures, the ratchet structure 12 comprises: a head 13, a ratchet 16 and a direction knob 18. The head 13 is similar to a flat body, and is formed integrally with the connecting member 11, and an assembling portion 14 and a restricting groove 15 are provided in the head 13. The assembling portion 14 is a circular ring structure for receiving the ratchet 16 and a ratchet set (not shown), and supports the ratchet 16 at two sides (or top and bottom) of the head 13. The limiting groove 15 is between the assembling portion 14 and the connecting member 11, and receives the direction knob 18 and limits the rotation amplitude thereof. The direction knob 18 is coupled to the outside of the head 13 by a fastener 17, enabling the ratchet 16 to be operated to rotate with the head 13 or to allow the ratchet 16 to idle relative to the head 13 without applying work. Thus, the ratchet structure 12 and the connecting member 11 are used as a ratchet wrench, so that the tool 10 has the performance of a ratchet wrench.

As shown in fig. 1, 3 and 4, the fixed jaw structure 20 has a base 22, a first jaw 24 and a second jaw 26, which are integrally formed into a substantially U-shaped structure, so that the tool 10 has the performance of an open-end wrench. Thus, the first jaw 24 and the second jaw 26 are spaced apart from each other on the same side of the base 22 to form an open end 23 of the tool 10.

One side of the base part 22 is integrally formed with the connecting piece 11, so that the fixed jaw structure 20 and the ratchet structure 12 are arranged at two ends of the connecting piece 11. The other side of the base 22 is defined as a side 22A, and the two ends of the side 22A are connected to an inner side 24A of the first jaw 24 and a concave curved surface 22B, respectively, and the concave curved surface 22B is connected to an inner side 26A of the second jaw 26. Thus, the back of the inner side 24A of the first jaw 24 is considered the outer side 24B, and the outer side 24B is coterminous with the connecting member 11. Similarly, the inner side 26A of the second jaw 26 is backed by an outer side 26B for engaging the same side of the connecting member 11.

specifically, the first jaw 24 defines a front end 30 where the inner and outer sides 24A, 24B meet, and forms a continuous plane 32, a first inclined plane 34, a second inclined plane 36 and an inner angle structure 35 on the inner side 24A in sequence from the front end 30 toward the base 22. The first inclined plane 34 is inclined from the plane 32 to the outer side 24B of the first jaw 24, and the second inclined plane 36 is raised from the lowest point of the first inclined plane 34 toward the base 22, so that the first and second inclined planes 34, 36 together enclose an obtuse angle structure 31. A convex surface 38 separates the obtuse angled structure 31 from the inner angled structure 35 such that the apex 37 of the convex surface 38 is higher (as viewed in the horizontal direction from the plane 32 of fig. 4) than either the lowest point of the obtuse angled structure 31 or the lowest point of the inner angled structure 35. Further, inner corner structure 35 connects the ends of side surfaces 22A and serves as a turning point between first jaw 24 and base 22.

As shown in fig. 2, 4, and 5, the intersection of the inner side 26A and the outer side 26B of the second jaw 26 is referred to as the front end 40, and a plane 42 and a curved surface 44 are formed on the inner side 26A of the second jaw 26 from the front end 40 to the base 22, the curved surface 44 connecting the plane 42 and the concave curved surface 22B. The second jaw 26 also has a protrusion 41, the protrusion 41 separating a first slot 46 and a second slot 48, the first and second slots 46, 48 communicating with each other by a semicircular surface 43 engaging an arcuate aperture 45. The diameter of the first semicircular groove 46 is the same as the diameter of the second semicircular groove 48, but is larger than the diameter of the semicircular surface 43. The semicircular surface 43 is concentric with the first and second semicircular grooves 46, 48 at the side of the protrusion 41 facing the first jaw 24. The arc hole 45 penetrates the protrusion 41 along the thickness direction of the second jaw 26 to receive a pin 53 passing through the movable jaw 50 and an elastic member 55.

In this embodiment, the elastic member 55 is a compression spring, one end of which abuts against the wall surface of the arc hole 45, and the other end of which exerts a force on the pin 53 to push the movable jaw 50 to move to a use position relative to the second jaw 26.

In some embodiments, the resilient member 55 may be a compression spring, or a plurality of juxtaposed discs.

Then, cooperate withThe specific structure of the movable jaw 50 is explained. The movable jaw 50 has a set of semi-circular plates 52, 54 with the same diameter, and the semi-circular plates 52, 54 are combined together by a semi-cylinder 56 with a smaller diameter to form a concentric structure. Thus, the pair of half-cylinders 52, 54 cooperate with the half-cylinder 56 to define a channel 58, the channel 58 surrounding the half-cylinder 56 and having opposite ends respectively opening onto an operating surface 51 at the back of the movable jaw 50.

When the movable jaw 50 moves toward the second jaw 26, the set of semi-circular plates 52, 54 enter the first semi-circular groove 46 and the second semi-circular groove 48, respectively, until the circumferential surface 56A of the semi-cylinder 56 fits the semi-circular surface 43 of the protrusion 41. At this point, the circumferential surfaces 52A, 54A of the set of semicircular plates 52, 54 are facing the vertical wall surfaces of the first and second semicircular grooves 46, 48. At the same time, the pin 53 prevents the pair of semicircular pieces 52 and 54 from separating from the protruding portion 41 by the wall surface of the arc hole 45 through the two small holes 52B and 54B formed in the semicircular pieces 52 and 54, and completes the operation of coupling the movable jaw 50 to the fixed jaw structure 20. Thus, the set of half-round pieces 52, 54 on either side of the protrusion 41 prevents the elastic member 55 from leaving the arc hole 45 without interfering with the movement of the elastic member 55 in the arc hole 45.

The operation surface 51 is composed of a first surface 51A and a second surface 51B, the first surface 51A and the second surface 51B enclose an angle 51E of about 120 ° ± 10 ° (see fig. 6), and a concave portion 51C is formed at the intersection of the first surface 51A and the second surface 51B. The concave portion 51C is a concave curved surface, and the axis 51D of the concave curved surface is eccentric to the axis 56B of the semi-cylinder 56.

As shown in fig. 6 and 7, the base 22 is gradually moved closer to the hexagonal structure 65 (e.g., the head of a screw or the nut) of the screw 60 by the force of the connecting member 11. The front ends 30, 40 of the first jaw 24 and the second jaw 26 pass through a set of opposing sides (i.e., side BC and side EF) along with the flats 32, 42 such that the movable jaw 50 is urged from the use position to a displaced position by the angle C of the hexagonal structure 65. At this point, the half-circular plate 52 (see fig. 3) with the pin 53 rotates about the half-cylinder 56 following the movement of the arc hole 45, thereby compressing the volume of the elastic member 55 (see fig. 5). When the recess 51C is opposite the corner C, the compression spring 55 (see fig. 5) pushes the wall of the pin 53 adjacent the end of the arc hole 45, driving the movable jaw 50 from the moved position to the use position.

In other words, the movable jaw 50 is in the use position with the first face 51A touching the CD side of the hexagonal structure 65 and the second face 51B touching the BC side, such that the operative faces 51 (see fig. 5) touch both sides of a single corner (i.e., corner C) of the hexagonal structure 65. At the same time, side 22A of base 22 abuts edge DE of hex configuration 65 and second angled surface 36 of first jaw 24 contacts edge EF, completing the initial rotation of open wrench operating screw 60.

In fig. 8, the second slope 36 serves as a fulcrum to support the link 11 for movement in the direction of arrow 11A. The force (or torque) of the coupling member 11 is transmitted through the side 22A of the base 22 to the DE side of the hex 65, driving the screw 60 in rotation with or in the same direction as the tool 10 (see fig. 1). At this point, the movable jaw 50 assists the fixed jaw structure 20 together with the purpose of opening wrench rotation screw 60.

In case, the arrow 11A indicates the direction of locking. Then, the fixed jaw structure 20 and the movable jaw 50 are turned about 180 degrees around the longitudinal direction of the tool 10 (see fig. 1), so that the open end wrench can perform a loosening operation on the screw 60.

As seen in fig. 9 and 10, the connecting member 11 operates the fixed jaw structure 20 to pivot back along with the movable jaw 50 by a certain angle in the direction of the arrow 11B. The first ramp 34 of the first jaw 24 is clear of angle F such that the apex 37 (see fig. 3) of the convex surface 38 crosses angle E of the hexagonal structure 65, leaving the second ramp 36 of the obtuse angled structure 31 facing angle E. The inner corner structure 35 spans the angle E and covers the angle D, with the side 22A of the base 22 facing away from the side DE and turning toward the side CD adjacent the hex 65, so that the concave curve 22B, along with the curved surface 44 of the second jaw 26, covers the periphery of the angle C.

At the same time, the movable jaw 50 is displaced from the use position to the movement position, and further, over the angle C of the hexagonal structure 65 and displaced to the angle B, and the associated pin 53 presses the elastic member 55 (refer to fig. 5). When the recess 51C covers the angle B, the pin 53 is pushed back to the original position by the elastic member 55, and the movable jaw 50 is driven to return to the use position from the moving position, so that the second surface 51B contacts the edge AB, and the first surface 51A contacts the edge BC at the same time, completing the single idle and non-working action, and waiting for the next action of the open-end wrench.

Claims

1. A fast-rotating open wrench is characterized in that a first jaw (24) and a second jaw (26) which are fixed are combined on a base (22), the second jaw (26) is provided with a movable jaw (50), and the movable jaw (50) rotates back and forth relative to the second jaw (26) at a moving position and a using position;

The method is characterized in that: the movable jaw (50) is provided with an operation surface (51), the operation surface (51) comprises a first surface (51A) and a second surface (51B), and the first surface (51A) intersects with the second surface (51B) to form an angle (51E);

In the use position, the first surface (51A) of the movable jaw (50) can contact two sides of a single corner of a hexagonal structure (65) in cooperation with the second surface (51B).

2. The fast-turning open wrench of claim 1, further comprising: the angle (51E) is in the range of 120 DEG + -10 deg.

3. The fast-turning open wrench of claim 1, further comprising: a recess (51C) is formed at the intersection of the first surface (51A) and the second surface (51B).

4. The fast-turning open wrench of claim 1, further comprising: the second jaw (26) has an arcuate aperture (45), the arcuate aperture (45) receiving a pin (53) through the movable jaw (50) and a resilient member (55), the resilient member (55) urging the pin (53) to provide the force required to maintain the movable jaw (50) in the use position.

5. The fast-turning open wrench of claim 4, further comprising: the resilient member (55) is a compression spring, a compression spring or a plurality of juxtaposed discs.

6. The fast-turning open wrench of claim 1, further comprising: the inner side (24A) of the first jaw (24) is provided with a plane (32), a first inclined surface (34), a second inclined surface (36) and an inner angle structure (35), the first inclined surface (34) and the second inclined surface (36) are matched to enclose an obtuse angle structure (31), the obtuse angle structure (31) and the inner angle structure (35) are separated by a convex surface (38), and the inner angle structure (35) is connected with the side surface (22A) of the base portion (22).