CN1263808A

CN1263808A - Ratchet-driven tool

Info

Publication number: CN1263808A
Application number: CN 00103297
Authority: CN
Inventors: 胡厚飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-03-23
Filing date: 2000-03-23
Publication date: 2000-08-23
Anticipated expiration: 2020-03-23
Also published as: CN1151010C

Abstract

A ratchet-driven tool is composed of a main body of spanner with the first reception part on its head, the third reception part on its handle and the second reception part between the first and the third ones, a reverse switch in the third reception part, a stop unit in reversing switch, a jam unit and a ratchet driver. Its advantages are simple structure, easy assembly, reliable direction reversing, high torque load power and low cost.

Description

A kind of ratchet-driven tool

The present invention relates to a kind of ratchet-driven tool, especially a kind of torsion is big, and commutation reaches rapidly really, and is simple in structure, the ratchet-driven tool that is easy to assemble.

Ratchet-driven tool is a kind of hand tools that is in daily use, as our normally used ratchet spanner, therefore require such instrument to have higher torque value, the spine move part has the high number of teeth, thereby spanner is not fragile in use to make the consumer, and torque magnitude will be decided by what of total number of teeth in engagement of clamping piece and spine move part, for example space, car engine chamber is very narrow and small, when using ratchet spanner, rotational angle is excessive will to influence the operation smooth degree, the size of rotational angle is decided by the number of teeth of spine move part, because spine move part number of teeth height then each tooth rotational angle is little, to 72 present teeth, that is its rotational angle is by the earliest progressive 5 degree to a tooth of a tooth 15 degree by 24 tooth progress for ratchet spanner the earliest.

Very to above-mentioned requirement to ratchet spanner, known spanner, a kind of ratchet spanner is disclosed as U.S.'s patent of invention No. 295377 (annexes two), it has loam cake and lower cover, on, the setting of lower cover certainly will influence the attractive in appearance of whole ratchet spanner, and increases cost, assemble man-hour, reversing switch has the positioner location, and this positioner is the oblique mode that makes progress puts, but this oblique hole that makes progress, quite difficult and bore askew easily on making, in addition, holding part is rake angle and launches shape, must mill system side with the computer lathe and might make, and cost is too high, and easily cause production bottleneck, though meet the requirement that the spine move part combines with the high number of teeth of top product, can produce higher torsion, but speed of production is slow excessively, cost is too high, can't survive on market with keen competition, does not therefore possess practicality.

People design the ratchet spanner of a kind of high torsion and the high number of teeth again, shown in annex one, the head of its wrench body has four accommodation spaces, first to the 3rd accommodation space can the milling cutter rotation mill system, it mills system quite easily, and the 4th accommodation space is irregularly shaped, then must be with computer lathe car system, its cost height relatively, and lose time, moreover first to fourth accommodation space be continuous open shape, a little less than causing the structure of head to become quite, the raising of unfavorable torque value, in addition, because the spine move part needs lid, except that increasing cost and assembling difficulty, the also globality of unfavorable its outward appearance, described top product is driven by the hook part that reversing switch sees through spring, and the hook part is by the top drive of top product, it drives strength can be obviously not enough, because be not that strength is to belong to indirect type by the sidepiece drive of top product, therefore above-mentioned spanner will have unconspicuous situation existence in commutation, and this is the big shortcoming of one.

The object of the present invention is to provide a kind of ratchet-driven tool, especially so a kind of ratchet-driven tool, can strengthen the torsion that bears of tool head, and can prevent that the situation that does not have slip teeth between spine move part and clamping piece or jump tooth from taking place, and improves the torsion of whole instrument, during assembling, only need to get final product with locking part combination, suitable rapid and convenient in the assembling is not owing to need add any lid, make whole instrument outward appearance neatly beautiful, when being reduced in worker and cost.

The object of the present invention is achieved like this: a kind of ratchet-driven tool comprises:

One wrench body, this wrench body one end is provided with a head, and the other end then is formed with a shank, wherein forms one first holding part in the head, and shank is provided with the 3rd holding part, is provided with second holding part between first and third holding part;

One reversing switch insert in the 3rd holding part of wrench body and relatively the shank rotation locate;

One top system device is inserted engaging in the reversing switch, and can be with reversing switch rotation location;

One clamping piece, one side is provided with tooth portion, and it is inserted in second holding part of wrench body, and device is made on the top and its side of not having tooth portion combines, and can be moved in second holding part by top system device drive;

The cylindrical shape of one spine move part has been peripherally installed with tooth portion, and its first holding part of inserting head is fixed, and head rotates relatively, and wherein tooth portion on it and the tooth portion on the clamping piece are fit-state.

Simple structure of the present invention, assembling is easy, commutation is certain, and it has following advantage:

(1) ratchet-driven tool of the present invention can provide a simple structure and assembling to be easy to ratchet-driven tool, during its assembling, only must utilize a locking part to assemble and finish whole ratchet-driven tool, need not any screw.

(2) ratchet-driven tool of the present invention has solved the difficulty of general ratchet spanner on making effectively, its first to the 3rd holding part all only needs to get final product with the milling cutter rotation system of milling, need not employ the computer lathe, its cost is low, manufacturing process is short, short during worker, will bring greatest benefit for the industry of the manual tool of starting building.

(3) has a junction position between its first holding part of ratchet-driven tool of the present invention and the 3rd holding part, can provide head one preferable support force, also can promote the torsion that bears of whole instrument, overcome the defective of bearing the torsion reduction of whole ratchet spanner in the prior art, and has high torsion, therefore, quite has practical value and make things convenient for user's operation.

(4) its commutation of ratchet-driven tool of the present invention reaches rapidly really, utilizing top system device directly to drive holder does to move and commutation, it directly produces a vertical stress component and horizontal component, vertical stress component directly makes the tooth portion of clamping piece fit tightly the tooth portion of spine move part, horizontal component then makes the wall of clamping piece near the second ccontaining position, tooth portion between holder and spine move part fits tightly and will make the situation that does not have slip teeth during in the application of force or jump tooth at the spine move part take place, that is it can bear higher torsion, moreover horizontal component makes clamping piece be tight against the wall at the second ccontaining position, the thrust of utilizing the thickness of wall to bear the spine move part, this also helps the lifting of whole torque of wrenches, moreover the fixture exchange is fixed to switch, can guarantee that more the relative position of holder and clamping piece does not have the situation generation of any displacement, many one safety devices, this function quite has progressive and practical value, can increase substantially the use level of monkey wrench and related high additive value thereof, have good economic benefit.

Concrete structure of the present invention is provided by following embodiment and accompanying drawing thereof.Wherein:

Fig. 1 is the three-dimensional exploded view of first embodiment of a kind of ratchet-driven tool of proposition according to the present invention;

Fig. 2 is the sectional side view after first embodiment of a kind of ratchet-driven tool of proposition according to the present invention makes up;

Fig. 3 is first movement state diagram of first embodiment of a kind of ratchet-driven tool of proposition according to the present invention;

Fig. 4 is second movement state diagram of first embodiment of a kind of ratchet-driven tool of proposition according to the present invention;

Fig. 5 is the 3rd movement state diagram of first embodiment of a kind of ratchet-driven tool of proposition according to the present invention;

Fig. 6 is the stereogram after first embodiment of a kind of ratchet-driven tool of proposition according to the present invention makes up;

Fig. 7 is the second embodiment sectional side view of a kind of ratchet-driven tool of proposition according to the present invention;

Fig. 8 is the 3rd embodiment state diagram of a kind of ratchet-driven tool of proposition according to the present invention;

Fig. 9 is the 4th embodiment state diagram of a kind of ratchet-driven tool of proposition according to the present invention.

Below in conjunction with accompanying drawing and most preferred embodiment thereof the concrete structure that the present invention proposes is further described.

As Fig. 1 and Fig. 2, structure shown in Figure 3, first most preferred embodiment of a kind of ratchet-driven tool that proposes for the present invention, it has a wrench body 10, these wrench body 10 1 ends are head 11, and the other end is a shank 12, wherein on head 11, form one first holding part 13, first holding part 13 is a toroidal, the bottom of edge wall is provided with a concave ring groove 131 within it, shank 12 inside adjacent with first holding part 13 are provided with second holding part 14 of an arc shape, this second holding part 14 is hidden in the shank 12, adjacent with second holding part 14 and on shank 12, be provided with the 3rd holding part 15, the surface that one end of the 3rd holding part 15 penetrates shank 12 is cylindric, and communicate with second holding part, the 14 overlapping holes that cause, in order to 61 direct actions of top product, do not need processing in addition to get through second holding part 14 and the 3rd holding part 15, so the 3rd holding part 15 is adjacent with first holding part 13 across connecting portion 16 with first holding part 13, it is not that whole hollow outs link to each other that this connecting portion 16 makes shank 12 and head 11, can increase the structural strength of 12 of head 11 and shanks.

One spine move part 20 is circular, is equipped with tooth portion 21 on its outer side surface, is equipped with concave ring groove 23 and depressed part 22 respectively in the both sides of tooth portion 21, and the interior sidewall surface of spine move part 20 is equipped with the turn position 24 that is polygon.

One locking part 30 is the elastomer of c-shaped shape.

One clamping piece 40 is semilune curved arc shape, the one side wall surface is provided with tooth portion 41, opposite side with respect to tooth portion 41 is provided with long recess 42, and the two ends of this long recess 42 are respectively equipped with first and second position 421,422, and the two ends of clamping piece 40 are respectively equipped with first and second end 43,44.

One reversing switch 50 is combined by pulling piece 51 and drive portion 52, wherein pulling piece 51 is the big state in narrow and small middle part, two ends, pull reversing switch 50 in order to the user, and drive portion 52 is cylindric, making reversing switch 50 can be that spinning movement is done at the center with it, and wherein the middle part of drive portion 52 is provided with a containing hole 521.

One top system device 60 is combined by a top product 61 and an elastic component 62, wherein elastic component 62 genus extension springs are most preferred embodiment, and the one end has a bottom 621, and the other end has a button portion 622, this top product 61 is strip, and the one end can be butted on the bottom 621 of elastic component 62.

During assembling, earlier reversing switch 50 is inserted in the 3rd holding part 15 of wrench body 10, to push up system device 60 again inserts in the containing hole 521 of reversing switch 50 via second holding part 14, and make elastic component 62 be set in the outside of top product 61, one end of top product 61 is tight against the bottom 621 of elastic component 62, and the button portion 622 of elastic component 62 is buckled in the outer rim of containing hole 521, this part please consults shown in Figure 3 especially, then clamping piece 40 is inserted in second holding part 14, wherein the end of clamping piece 40 tool tooth portions 41 is towards first holding part 13, the end of tool long recess 42 is then towards second holding part 14, top product 61 is stretched in its long recess 42, locking part 30 is inserted in the concave ring groove 23 of spine move part 20, again both assemblys are inserted in first holding part 13 of wrench body 10, this moment, locking part 30 can snap in the concave ring groove 131 of first holding part 13, and make the spine move part 20 and the head 11 of wrench body 10 combine, and spine move part 20 can rotate relatively with head 11, this part please consults Fig. 2 especially, then please referring to Fig. 3, after combination is finished, (assembling finish ratchet-driven tool see also Fig. 6) top product 61 can be tight against the long recess 42 of top product 40 because of the elasticity of elastic component 62, from assembling process, can clearly be seen that, the whole assembling process of the present invention is quite quick, and need only get final product by a locking part 30, need not appoint screw or lid, quite simple and easy.

See also Fig. 3 to Fig. 5, be illustrated in figure 3 as the long recess 42 interior second places 422 that top system device 61 is butted on clamping piece 40, clamping piece 40 was to be rotated counterclockwise to drive and unscrewed screw this moment, otherwise be idling conditions clockwise, top system device 61 is oblique pushing tow clamping piece 40, this top system device 61 can produce a skew force, this skew force can divide a vertical stress component and horizontal component, wherein vertical stress component is combined closely the tooth portion 21 of tooth portion 41 and spine move part 20 on it clamping piece 40 pushing and pressing and is fitted tightly, and this part can provide high torsion.

Pull reversing switch 50 during the desire commutation, driving top system device 60 by drive portion 52 rotates, please referring to Fig. 4, when top system device 61 goes to the centre position, top system device 61 can produce a top power to the bottom of elastic component 62, elastic component 62 length are elongated, rotate to an angle when pulling, as shown in Figure 5, top system device 61 can be promoted by the elastic force of elastic component 622, and being tight against primary importance 421 in the long recess 42, spine move this moment part 20 also can produce a horizontal component and vertical stress component, respectively clamping piece 40 is pushed to the tooth portion of spine move part 20 and the end of second holding part 14.

Please referring to Fig. 7, be second most preferred embodiment of the present invention, itself and the main difference of first most preferred embodiment are the difference of spine move part 20 and head 11, the central part of one wrench body, 10 its heads 11 is provided with one first holding part 13, one spine move part 70 is cylindric, its side ring is provided with tooth portion 71, the two ends of this tooth portion 71 are respectively equipped with flange 72 and turn portion 73, in turn portion 73, be provided with a fixture 80, locking sleeve when this fixture 80 is used for turn portion 73 and combines with the sleeve (not shown), 72 of the flanges of spine move part 70 stretch in first holding part 13 of head, locking part 30 lock is the concave ring groove 131 of spine move part 70 and head 11 fixedly, in 731, make that spine move part 70 is pivoted.

Please referring to Fig. 8, it is the 3rd most preferred embodiment of the present invention, it is to push up the different of system device 90 with the main difference of first most preferred embodiment, the top system device 90 of present embodiment also is to be combined by top product 91 and elastic component 92, wherein top product 91 also becomes strip, and its inside is provided with a containing hole 911, this containing hole 911 is through to the bottom of top product 91, elastic component 92 is inserted in the containing hole 911 fixing, be that with the main difference of first embodiment it is to insert in the elastic component 62 that first embodiment belongs to top product 61, the 3rd embodiment then is that elastic component 92 is to insert top product 91 inside, and the effect that both reached is consistent.

Please referring to Fig. 9, be the 4th most preferred embodiment of the present invention, with different only different at spine move part 70 of the 3rd most preferred embodiment, other members are roughly the same, the spine move part 20 that the spine move part 70 of the 4th embodiment has a drive portion 73 and flange 72, the three most preferred embodiments then is a penetration.

Claims

1, a kind of ratchet-driven tool is characterized in that: comprises,

2, a kind of ratchet-driven tool according to claim 1 is characterized in that: the combining of the head of described spine move part and wrench body, can a locking part in addition pivot is solid, make the spine move part relatively head rotate.

3, a kind of ratchet-driven tool according to claim 2, it is characterized in that: can establish a concave ring groove at the internal face of head, and the tooth portion root edge of spine move part also is oppositely arranged a concave ring groove, when the spine move part is inserted in the head, locking part is placed between two concave ring grooves, makes the spine move part to combine rotation with head.

4, a kind of ratchet-driven tool according to claim 1 is characterized in that: described reversing switch is combined by pulling piece and drive portion, and wherein pulling piece can be pulled for hand, and making it is that the center rotates with drive portion.

5, a kind of ratchet-driven tool according to claim 1 is characterized in that: described top system device can be combined by an elastic component and top product.

6, a kind of ratchet-driven tool according to claim 5 is characterized in that: described top product can be strip, and elastic component can be the spring of a strip.

7, a kind of ratchet-driven tool according to claim 4 is characterized in that: establish a containing hole on the wall of drive portion, ccontaining top system device.

8, a kind of ratchet-driven tool according to claim 6 is characterized in that: an end of described elastic component can be established a bottom, and in order to accept an end of top product, the other end of elastic component then can be established a button portion, in order to prop up the containing hole outside wall surface of drive portion.

9, a kind of ratchet-driven tool according to claim 1 is characterized in that: the opposite side with respect to tooth portion on clamping piece is provided with a long recess, inserts into the inner the drive clamping piece for clamping piece and moves in second holding part.

10, a kind of ratchet-driven tool according to claim 1 is characterized in that: can form a turn position that penetrates in the described spine move part.

11, a kind of ratchet-driven tool according to claim 1 is characterized in that: described spine move part can be set as an end and have a turn portion of protruding.

12, a kind of ratchet-driven tool according to claim 1 is characterized in that: between the described first and the 3rd holding part, second holding part is provided with a junction.

13, a kind of ratchet-driven tool according to claim 5 is characterized in that: a containing hole can be established in product inside, described top, and elastic component can place in this containing hole.