JPH06509029A - adjustable spanner - Google Patents

Abstract

The invention provides an adjustable spanner having one fixed jaw (11) and one movable jaw (12), the fixed jaw being mounted on or formed integrally with the body or handle (10) of the spanner, and the movable jaw being arranged to slide in the body or handle of the spanner relative to the fixed jaw; in which the movable jaw (12) is provided with a first set of serrations (15) and a locking member (17) provided with a second set of serrations (16) is movably mounted in the body of the spanner to move between a locking position in which said second set of serrations engage wih said first set of serrations to lock the movable jaw (12) in an operative position, and a release position in which the second set of serrations are clear of said first set of serrations to allow adjusting movement of the movable jaw; wherein releasable locking means (21) is provided for locking the locking member (17) positively in said locking position.

Description

[Detailed description of the invention] adjustable spanner The present invention relates to an adjustable spanner.

An adjustable spanner has one jaw fixed to the handle and is mounted on the handle. A screw device allows the second jaw of Sunonousu to be adjusted relative to the first jaw. It is good (known) to be good.

Adjusting such spanners is a time-consuming task and requires a combination of screw mechanisms and movable spanner jaws. Backlash or backlash is unavoidable during the fixed spanner like six This means that it is difficult to firmly engage the square nut surface. .

It is an object of the present invention to provide an adjustable spanner that alleviates these drawbacks. .

Accordingly, the present invention comprises one fixed jaw and one movable jaw, the fixed jaw being equipped with a spanner. The movable jaw is attached to or integrally formed with the body or) one handle, and the movable jaw is fixed relative to the fixed jaw. With an adjustable spanner placed on the spanner body or handle to slide The movable jaw has a first set of serrations and a second set of serrations. a locking member provided is movably attached to the spanner body or handle; A second serration engages the first serration to lock the movable jaw in the operative position. A second serration is provided to allow for locking position and adjustable movement of the movable jaw. Adjustable to move between 1 serration and released release position Provides a flexible wrench.

A releasable locking means positively moves the locking member into said locking position. provided for locking.

The locking member is configured to move in a direction transverse to the direction of movement of the movable jaw. Preferably, the handle is slidably attached to the handle.

The locking means is configured to move between the locking position and the release position. including a bin movably mounted on the handle, said bin being in a locking position and unlocked; engages said locking member on movement between the released position and directs it in the direction of the movable jaw; It is preferable to have a cam surface that presses against.

The locking means bin is slidably mounted on said body or handle. It is preferable.

The bottle can have a circular cross section, in which case the cam surface is a portion of the taper on the pin surface. .

The bin can have a rectangular cross section, in which case the cam surface is the sloped part on one side of the bin. Ru.

In other constructions the bin is rotatably mounted to the body or handle; in this case The cam surface is a surface cut into the circumferential surface of the bottle.

The locking member is elastically pressed away from the movable jaw by a spring. is preferred.

The first and second sets of serrations are increments in the dimension of the nut rotated by the wrench. It is preferred to have a pitch distance equal to .

A scale structure may be provided between the fixed and movable jaws to indicate the setting of the spanner. is preferable.

To facilitate a more complete understanding of the above-mentioned and other aspects of the invention, examples are provided. Only embodiments are described herein with reference to the accompanying drawings. In the drawings, Figure 1 shows a partially cross-sectional side view of a spanner embodying the invention; Figure 2 shows an external view of the spanner in Figure 1, and Figure 3 shows a top view of the spanner in Figure 1. 4 shows a view similar to FIG. 1 of another spanner embodying the invention, 5 shows a top view of the wrench shown in FIG. 4, and FIG. 6 shows a top view of the wrench shown in FIG. FIG. 7 shows a view similar to FIG. 1 of another spanner embodying the invention. death, 8 shows a top view of the spanner of FIG. 7, and FIG. 9 shows details of the locking means of FIG. FIG. 10 shows a cross-section along line xx-xx, and FIG. 11 shows the present invention. Showing a diagram similar to the first diagram of another wrench that embodies, Figure 12 shows the top view of the wrench in Figure 1+, and Figure 13 shows the lock of the spanner in Figure 11. details of the locking means, and FIG. 14 shows a cross section along JIIXIV-XIV in FIG. 13.

The spanners shown in Figures 1, 2 and 3 of the accompanying drawings are integrally formed solid parts. A handle IO having a fixed spanner jaw 11 and a handle IO that is integrally formed with the handle 10. A movable spanner jaw 12 that can freely slide on the spanner body. There is. The movable jaw 12 has a "keyhole" shaped projection 13, which itself is normally By this method, a strip of the same shape is formed on the stopper body adjacent to the fixed jaw 11. Move within lot 14.

A first serration set 15 is provided on the rear surface of the movable jaw 12, and this serration is connected to the corresponding second serration set 16 formed on the locking member 17. Can be combined. The locking member 17 is inserted into a suitable opening 18 formed in the spanner body. A first a locking position in which the serration set engages with a second serration set; The serration set can be moved between a release position and a release position where the serration set is separated from the second serration set. It is done like this.

When the locking member is in this locking position, the movable jaw I2 is not selected. While the locking member is securely locked in a position that matches the nut dimensions, When in such a released position, the movable jaw I2 is free to adjust to the selected nut size. I see that it is possible.

Serrations 15 and 16 are in inch or metric dimensions where spanners are used. Preferably, the pitch is selected to match the standard nut dimensions. Movable jaw 12 It also includes a scored line portion 19, which is provided on the fixed jaw or on the spanner body. (see Figure 2) to determine the predetermined nut size to be used. It has a movable jaw that can be set.

Locking means, generally indicated at 21, locking member 17 with its serrations. 16 is released into the locking position where it engages with the serrations 15 of the movable jaw I2 of the spanner. A spanner body is provided for releasably engaging and retaining the spanner body. This example In this case, the locking means 21 includes a bin 22 which allows the locking member 17 to be moved. so as to move substantially parallel to the direction of movement of the movable jaw 12 in a direction transverse to the direction of movement; It is slidably attached to the main body of the spanner IO. The bottle 22 has a tapered portion 23 The locking member 17 has a cam surface formed on the rear part of the locking member 17. 24.

In this way, the gap between the unlocked position and the locked position as seen in the drawing is The downward movement of the locking member 17 causes the locking member 17 to engage the movable jaw I2. to the king position and also lock it in this locking position. taper 23 is such that a moderate force acting on the top of the bottle 22 causes the movable jaw 12 to firmly lock. ``Self-locking'' can be achieved, and this can be achieved by It is strengthened by tapping the top. Bin 22 is necessary for safe and secure locking. To prevent the wrench from moving beyond the required distance into the body, 5 is engaged with a shoulder 26 formed on the spanner body. Neck part 27? A cavity is formed in the bottle 22 immediately below the tapered portion 23, as shown in the drawing. When the taper bottle moves upwards, the locking member 17 is released. the projection 24 is received within this cavity and the movable jaw 12 engages the serrations. Allows you to move freely while unlocking.

The locking member 17 is assembled into the spanner body through a suitable opening formed in the side surface. This opening can then be inserted into the cover plate 2 as shown in FIG. Covered by 8.

When the locking member 17 is released, the movable jaw completely falls off from the wrench. The setscrew 29 is inserted into the corresponding slot 30 of the moving jaw 12 to prevent It may be provided to engage the spanner body. Set screw 29 into slot 30 This engagement occurs when the wrench is set at a wide or large setting, but it reduces the rotational force. from the dollar to the movable jaw, thus promoting stiffness of the spanner in use at large settings. It also helps.

Therefore, in this embodiment, if necessary, the bottle can be properly tapped with a hammer into the locking position. 22 to the selected tune to accommodate the required nut size. It will be seen to provide an adjustable wrench that locks securely into position. Furthermore To release the bottle 22, if necessary, tap the bottom end with a hammer. Adjustable jaws are released and can be easily adjusted to the selected dimensions.

Once the movable jaw is locked by the bin 22 and the locking member 17, the adjustment A possible spanner behaves as if it were a fixed spanner, and thus As such, it alleviates the drawbacks of previous adjustable spanners.

4, 5 and 6 embody the present invention and are generally similar to FIGS. 1, 2 and 6. and other spanners similar to those in FIGS. and which are designed or intended in common with those in Figure 3 and are given the same reference numerals. It is being

In this construction, the bin 22 has a rectangular cross section, which is similar to the similar cross section of the spanner body. Slide inside the slot.

The tapered portion 23 of the previous embodiment is replaced by an inclined cam surface 40, The void or neck portion 27 has been replaced by a void 41.

In this embodiment, the compression coil spring 42 abuts against a shoulder formed in the spanner body. so as to act in a plane with the pin 43 provided on the locking member 17 adjacent to the riser 24. This presses the locking member 17 to the released position.

In other respects, the embodiments of FIGS. II4, 5 and 6 are identical to those of FIGS. and operates in exactly the same manner as the embodiment of FIG.

7, 8, 9 and 10 are figures 1, 2 and 10 embodying the present invention. and another wrench substantially similar to that of FIGS. and are similarly designed or intended as those in Figure 3 and are given the same reference numerals. It is.

In this embodiment, the axially moving bin 22 is replaced by a rotatable bin 5o. It is being The rotatable bin 50 is mounted by means not shown, which are known per se. It is therefore arranged axially within the spanner body.

The tapered surface 23 in FIGS. 1, 2, and 3 is shaped like a notch in the circumferential surface of the bottle 50. cam surface 52 which engages projection 24 and locks. Pushing the locking member I7 into engagement with the movable jaw I2.

The cam surface 52 terminates in a cavity 53, which cavity is shown in FIGS. 1, 2, and 3. This corresponds to the blank space 27 in the embodiment.

The locking member 17 is provided with a spring 54 as in the embodiments of FIGS. 4, 5 and 6. The engagement with the movable jaw I2 is released.

In other respects, the embodiments of FIGS. It operates in exactly the same way as the embodiment of FIGS. 2 and 3.

FIGS. 11, 12, 13 and 14 show further examples of spas embodying the present invention. 1, and the components are generally similar to those in FIGS. 1, 2, and 3. intended or intended and given the same reference numerals.

In this embodiment, the slideable lock of the embodiments of FIGS. The ringing member 17 is a rotatable member axially arranged to rotate within the spanner body. It has been replaced by a locking member 60. The locking member 60 is generally circular in shape. It has a cross section and is held axially within the hole in the handle body by a screw t61.

The locking member 60 has a small handle 62 that allows a small angle It will rotate.

The locking member 60 has a second set of serrations 63 formed around a part of its circumferential surface. The serrations are similar to the serrations of the locking member 17 in FIG. The purpose is the same as 16. the periphery of the locking member 60 adjacent to the serrations 63; A cavity or cutout 64 is placed around the face. The first section of the movable jaw 12 Ration group! 5 surrounds the second serration set 16 of the locking member 60. The latter serrations are also formed on the cylindrical surface of the locking member. It has a precise shape.

In use, the locking member 60 is secured to the first serration by the handle 62. The set 63 engages the second set of serrations I5 of the movable jaw 12 to place the movable jaw in a predetermined position. locking position, and the cutout 64 is in the second serration position of the movable jaw 12. to the release position which provides clearance for the assembly 15 to allow the movable jaw to adjust to a new position. and rotated. Once the jaws have been adjusted, the locking member 6o is moved to the first serration position. It is returned to bring the link set 63 into the secured state again.

In other respects, the embodiments of FIGS. 11, 12, 13 and 14 are It operates in exactly the same way as the embodiments of FIGS. 1, 2 and 3.

Accordingly, the present invention provides the ability to securely position the nut in various embodiments to accommodate the required nut dimensions. can be easily and conveniently adjusted for various nut sizes. It will be appreciated that the present invention provides an adjustable wrench with an adjustable spanner.

Copy and translation of written amendment) Submission (Article 184-8 of the Patent Law): =-

Claims (14)

[Claims] 1. Has one fixed jaw (11) and one movable jaw (12), the fixed jaw is equipped with a spanner Attached to or integrally formed with the body or handle (10), the movable jaw is connected to the fixed jaw. An adjustable slide located on the spanner body or handle to slide against the The movable jaw (12) comprises a first set of serrations (15), and the movable jaw (12) comprises a first set of serrations (15); The locking member (17) with two serration sets (16) is transferred to the spanner body. the second set of serrations is movably attached to the first set of serrations; a locking position in which the movable jaw (12) is engaged with and locks the movable jaw (12) in the actuated position; The second set of serrations is connected to the first set of serrations to enable adjustment movement. The releasable The locking means (21) positively moves the locking member (17) into the locking position. Adjustable wrench provided for locking. 2. The adjustable spanner as claimed in claim 1, wherein the locking member is adjustable. The main body or hand is moved in a direction transverse to the moving direction of the movable jaw (12). Adjustable wrench slidably mounted on the handle. 3. The adjustable spanner claimed in claim 1 or claim 2, wherein the lock King means (21) are movably attached to said body or handle and lock. including a pin (22, 50) movable between a king position and a released position; The locking member (17) moves between the locking position and the release position. ) and is arranged to engage the movable jaw (12) and push it towards the movable jaw (12). Adjustable spanner having surfaces (23, 40, 52). 4. The adjustable spanner as claimed in claim 3, wherein the locking member (1 7) is arranged so that the projection (24) engages with the cam surface (23, 40, 52). ) with adjustable spanner. 5. The adjustable spanner as claimed in claim 4, wherein the locking member (1 7) and the pin (22, 40, 50) are in the release position, the protrusion ( 24), said pin comprising a cavity (27, 41, 53) arranged to receive a Comes with an adjustable spanner. 6. The adjustable spanner claimed in claim 3, claim 4 or claim 5, , the pin (22, 40) is slidably attached to the main body or handle. Adjustable spanner. 7. The adjustable spanner as claimed in claim 6, wherein the pin (22) is circular. adjustable cross section, said cam surface being a tapered portion (23) of the pin surface; spanner. 8. The adjustable spanner as claimed in claim 6, wherein the pin (40) is square. adjustment having a shaped cross-section, said cam surface being an inclined portion (40) on one side thereof; Possible spanner. 9. The adjustable spanner claimed in claim 6, claim 7 or claim 8, , in order to prevent the said pin (22, 40) from over-tightening the locking means (21). Adjustable spanner with stop (25). 10. The adjustable spanner claimed in claim 3, claim 4 or claim 5 and the pin (50) is rotatably attached to the main body or handle. Adjustable spanner. 11. The adjustable spanner claimed in claim 10, wherein the cam surface is The adjustable spanner is a surface (52) cut into the circumferential surface of the ring (50). 12. An adjustable spanner as claimed in any of the above claims, wherein the lock The holding member (17) is elastically pushed in a direction away from the movable jaw by a spring (42). Adjustable spanner to be pressed. 13. An adjustable spanner as claimed in any of the above claims, wherein the first ( 15) and a nut in which the second (16) serration sets are rotated by a spanner. An adjustable spanner having a pitch distance equal to the increment in dimension. 14. An adjustable spanner claimed in any of the above claims, comprising a scale (2 0) is provided on the fixed or movable jaw, and a pointer (19) is provided on the movable or fixed jaw. Each fixed jaw is provided with a wrench so that the setting of the wrench can be indicated. adjustable spanner.