CN101209546A - Ratchet wrench - Google Patents
Ratchet wrench Download PDFInfo
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- CN101209546A CN101209546A CNA2006101305958A CN200610130595A CN101209546A CN 101209546 A CN101209546 A CN 101209546A CN A2006101305958 A CNA2006101305958 A CN A2006101305958A CN 200610130595 A CN200610130595 A CN 200610130595A CN 101209546 A CN101209546 A CN 101209546A
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- ratchet
- brake block
- head
- ratchet head
- sliding shoe
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Abstract
The invention provides a ratchet wrench, comprising a body, a braking block group, a ratchet head used for pulling a workpiece; the body is provided with a handle and a head; the head is provided with a receiving space where the ratchet head can be arranged; the external circumference of the ratchet head is provided with a plurality of ratchets which are combined into a whole by matching a C-shaped ouch; the internal side wall of the receiving space is provided with a braking trough where the braking block is arranged; the braking block group comprises a sliding block, a braking block and an elastic component; one side of the sliding block corresponding to the ratchet head is provided with an arc surface; one side of the braking block corresponding to the ratchet head is provided with a manufactured gear with a plurality of teeth; furthermore, the corresponding end surfaces between the sliding block and the braking block are respectively provided with a receiving part; two ends of the elastic component are respectively provided with a positioning part by which the two receiving parts of the sliding block and the braking block are connected; the ratchet head is driven by the engagement between the manufactured gear of the braking block and the ratchet of the ratchet head. The invention has the advantages of easier assembly, disassembly and positioning.
Description
Technical field
The present invention relates to a kind of ratchet spanner.
Background technology
As shown in figure 15, be existing ratchet spanner, it has a wrench body 6, wrench body 6 has spanner handle 61 and head 62, head 62 offers first storage tank 63, ccontaining for ratchet head 7, the periphery of ratchet head 7 has ratchet 71, and cooperate C type clasp 72 and be combined into one, and be provided with breaker slot 64 towards the direction of spanner handle 61 in first storage tank 63, ccontaining for brake block group 8, brake block group 8 comprises first brake block 81, second brake block 82 and a compression spring 83, and each brake block 81,82 directions with respect to ratchet head 7 are provided with system tooth 811,821, and in each system tooth 811,821 adjacent opposing end surfaces are respectively equipped with one first projection 812 and one second projection 822, and the contract two ends of spring 83 of voltage supply are sheathed on this first projection 812 and second projection 822, and 82 of this first brake block 81 and second brake block are linked mutually, by each brake block 81,82 system teeth 811,821 with the engagement of ratchet head 7 ratchets 71, to drive ratchet head 7.
When commutation drives ratchet head 7, brake block 81,82 system teeth 811,821 one of them 811 meeting of above-mentioned brake block group 8 be meshed with ratchet head 7 ratchets 71, though another to system tooth 821 be separated with ratchet 71, but because of shoring of spring 83 by compression, and make another to system tooth 821 come in contact with ratchet 71, make system tooth 811,821 or ratchet 71 produce the wearing and tearing of tooth and influence its durability, and often cause driving ratchet head 7 to rotate the situation that has some setbacks, to operator's quite inconvenience in the use, so it has necessity of further improvement.
Summary of the invention
Technical problem underlying to be solved by this invention is, overcomes the above-mentioned defective that prior art exists, and a kind of ratchet spanner is provided, and it has and is more prone to the advantage assembling, dismantle and locate.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of ratchet spanner comprises: a body, a brake block group, a ratchet head, in order to pull workpiece; This body has a Yi Wo Bing portion and a head, and this head offers an accommodation space, and is ccontaining for this ratchet head, the periphery of this ratchet head has several ratchets, and cooperate a C type clasp and be combined into one, the madial wall of this accommodation space is provided with a breaker slot, and is ccontaining for this brake block group; It is characterized in that, this brake block group comprises a sliding shoe, a brake block and an elastic parts, this sliding shoe is to should ratchet head one side having a cambered surface, the first side of the corresponding ratchet of this brake block is provided with a system tooth of several dentations of tool, and the corresponding end face with brake block of this sliding shoe is respectively equipped with a holding part, and these elastic parts two ends are respectively equipped with a location division, link for two holding parts with this sliding shoe and this brake block, by the engagement between the ratchet of the system tooth of this brake block and this ratchet head, to drive this ratchet head.
Aforesaid ratchet spanner, wherein elastic parts is the flexure strip of a compression spring, a locating ring, a ㄇ font spring, a V-type shell fragment or a π font, wherein the head-end sections of this V-type shell fragment is two holding parts that are embedded at this sliding shoe and this brake block, and the head-end sections of the flexure strip of this π font is ccontaining and be embedded in two holding parts of this sliding shoe and this brake block.
The present invention solves its technical problem also can adopt following technical scheme:
A kind of ratchet spanner comprises: a body, a brake block group, a ratchet head, in order to pull workpiece; This body has a Yi Wo Bing portion and a head, and this head offers an accommodation space, and is ccontaining for this ratchet head, the periphery of this ratchet head has several ratchets, and cooperate a C type clasp and be combined into one, the madial wall of this accommodation space is provided with a breaker slot, and is ccontaining for this brake block group; It is characterized in that, this brake block group comprises a sliding shoe, a brake block and an elastic parts, this sliding shoe is to should ratchet head one side having a cambered surface, the first side of the corresponding ratchet of this brake block is provided with a system tooth of several dentations of tool, and be respectively equipped with a projection in this sliding shoe corresponding end face adjacent with this brake block, two ends by this elastic parts are sheathed on this two projection respectively, and this sliding shoe and this brake block are connected, by the engagement between the ratchet of the system tooth of this brake block and this ratchet head, to drive this ratchet head.
Aforesaid ratchet spanner, wherein elastic parts is a compression spring or a shell fragment.
Aforesaid ratchet spanner, wherein the shank part other end of body has more one second head, this second head offers one second accommodation space, ccontaining for one second ratchet head, the periphery of this second ratchet head has several ratchets, and cooperate another C type clasp and be combined into one, and the madial wall of this second accommodation space is provided with one second breaker slot, ccontaining for one second brake block group; This second brake block group comprises a second sliding shoe, one second brake block and one second elastic parts, this the second sliding shoe is to should the first side of second ratchet having a cambered surface, this second brake block is to should the first side of second ratchet being provided with a system tooth of several dentations of tool, the corresponding end face that this second sliding shoe is adjacent with this second brake block is respectively equipped with one second projection, two ends by this second elastic parts are sheathed on this 2 second projection respectively, and this second sliding shoe and this second brake block are connected, by the engagement between the ratchet of the system tooth of this second brake block and this second ratchet head, to drive this second ratchet head.
Aforesaid ratchet spanner, wherein elastic parts is a compression spring or a shell fragment.
The present invention solves its technical problem still can adopt following technical scheme:
A kind of ratchet spanner comprises: a body, a brake block group, a ratchet head, in order to pull workpiece; This body, it has a Yi Wo Bing portion and a head, and this head offers an accommodation space, and ccontaining for this ratchet head, the periphery of this ratchet head has several ratchets, and ratchet head central authorities are polygonal poroid; It is characterized in that, these several ratchet root edge rings are established one first annular groove, to being provided with one second annular groove in this accommodation space madial wall by first annular groove, are installed with for a C type clasp, and the madial wall in this accommodation space second annular groove top near Wo Bing portion is provided with a breaker slot, and is ccontaining for this brake block group; This brake block group comprises a guide pad, a brake block and an elastic parts, this guide pad is to should ratchet head one side having a cambered surface, the first side of the corresponding ratchet of this brake block is provided with a system tooth of several dentations of tool, and the corresponding end face with brake block of this guide pad is respectively equipped with an ostiolate arc-shaped groove, the width of each slot opening is slightly less than the diameter of this arc-shaped groove, and each elastic parts is to replace to link this guide pad and this brake block, by the engagement between the ratchet of the system tooth of this brake block and this ratchet head, to drive this ratchet head.
Aforesaid ratchet spanner, wherein elastic parts is a compression spring, and the pitch diameter (pitch diameter) of respectively compressing spring is between this slot opening width and arc-shaped groove diameter.
Aforesaid ratchet spanner, wherein the optimum width of each slot opening is 0.8mm, and the optimum diameter of each arc-shaped groove is 1.0mm.
Aforesaid ratchet spanner, wherein elastic parts has one and stretches first shrinking section and upwardly extending second shrinking section of establishing downwards, and links the connected section of a N type between first shrinking section and second shrinking section, and this elastic parts is combined into one.
By the engagement between the ratchet of the system tooth of this brake block and this ratchet head, to drive this ratchet head.
The invention has the beneficial effects as follows that it has and is more prone to the advantage assembling, dismantle and locate.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the perspective exploded view of first embodiment of the invention
The user mode schematic diagram of Fig. 2 one embodiment
Fig. 3 is the perspective exploded view of second embodiment of the invention
Fig. 4 is the perspective exploded view of third embodiment of the invention
Fig. 5 is the perspective exploded view of fourth embodiment of the invention
Fig. 6 is the perspective exploded view of fifth embodiment of the invention
Fig. 7 is the assembled state schematic diagram of fifth embodiment of the invention
Fig. 8 is the perspective exploded view of sixth embodiment of the invention
Fig. 9 is the perspective exploded view of seventh embodiment of the invention
Figure 10 is the perspective exploded view of eighth embodiment of the invention
Figure 10 a is the local enlarged diagram of eighth embodiment of the invention groove
Figure 11 is the cutaway view of eighth embodiment of the invention
Figure 12 is one of user mode schematic diagram of eighth embodiment of the invention
Figure 13 be eighth embodiment of the invention the user mode schematic diagram two
Figure 14 is the perspective exploded view of ninth embodiment of the invention
Figure 15 is the perspective exploded view of existing ratchet spanner
The specific embodiment
See also Fig. 1, Fig. 2, be the selected example structure of the present invention shown in the figure.
The ratchet spanner of present embodiment, it comprises: a body 1, a brake block group 2, a ratchet head 3, in order to pull workpiece;
This body 1, it has a Yi Wo Bing portion 11 and a head 12, this head 12 offers an accommodation space 13, ccontaining for this ratchet head 3, the periphery of this ratchet head 3 has several ratchets 31, and cooperate a C type clasp 32 and be combined into one, and this accommodation space 13 is provided with a breaker slot 14 near the madial wall of Gai Wo Bing portion 11, ccontaining for this brake block group 2.
This brake block group 2 comprises a sliding shoe 21, a brake block 22 and an elastic parts 23.In the present embodiment, this elastic parts 23 is a compression spring.21 pairs of this sliding shoes should ratchet head 3 one sides have a cambered surface 211, these brake block 22 corresponding ratchet head 3 one sides are provided with a system tooth 221 of several dentations of tool, and this sliding shoe 21 is respectively equipped with a holding part 212,222 with brake block 22 corresponding end faces, in the present embodiment, each holding part 212,222 is a groove.And these elastic parts 23 2 ends are respectively equipped with a location division 231, in the present embodiment, the location division of this elastic parts 23 is a locating ring, for in the holding part 212,222 that penetrates this sliding shoe 21, this brake block 22 respectively and link mutually, by the engagement of 31 of the ratchets of the system tooth 221 of this brake block 22 and this ratchet head 3, to drive this ratchet head 3.
During assembling, be that the location division 231 of these elastic parts 23 2 ends is inserted in respectively in the holding part 222 of the holding part 212 of this sliding shoe 21 and this brake block 22 to form this brake block group 2, again this brake block group 2 is packed in the breaker slot 14, make the system tooth 221 of the ratchet 31 aligning brake block 22 of these ratchet head 3 peripheries, and this C type clasp 32 of packing into promptly finishes assembling, and form can unidirectional rotation ratchet spanner.
The sliding shoe 21 and the brake block 22 of brake block group 2 all is placed in the breaker slot 14 in the above-mentioned assembling process, therefore has to assemble easily, dismantle simply and locate effect easily.
During use, as shown in Figure 2, when Gai Wo Bing portion 11 when pulling clockwise, this brake block 22 can be meshed the system tooth 221 of brake block 22 with the ratchet 31 of ratchet head 3 because of being subjected to shoring of elastic parts 23, pulls the effect that workpiece screws to reach.Otherwise, when desiring to unscrew workpiece, earlier that body is upper and lower end face exchange, again when pulling Gai Wo Bing portion 11 counterclockwise, because this brake block 22 is subjected to shoring of elastic parts 23, this brake block 22 system teeth 221 can be meshed with the ratchet 31 of ratchet head 3, reach and pull the effect that workpiece unscrews because of pulling Gai Wo Bing portion 11 counterclockwise.
The ratchet head 3 of present embodiment drives and is single direction, operates more simple and has more durability; And this sliding shoe 21 is the design of cambered surface 211 corresponding to a side of ratchet head 3, therefore, and when driving pawl head 3, brake block 22 system teeth 221 can be meshed with the ratchet 31 of ratchet head 3, can rotate more smoothly, for the user, and better practicality and the convenience of tool.
Certainly, still there are many examples in the present invention, therebetween the only variation on the details.See also Fig. 3, it is the second embodiment of the present invention, wherein difference is, this elastic parts 23A is a ㄇ font spring, ammunition feed spring two end 230A are inserted in respectively among each holding part 212A, 222A of this sliding shoe 21A and this brake block 22A, each holding part 212A, 222A are groove, and effect also is same as first embodiment, can reach good binding.
See also Fig. 4, it is the third embodiment of the present invention, wherein difference is, this elastic parts 23E is a V-type shell fragment, the head-end sections 231E of this V-type shell fragment 23E is embedded at respectively among each holding part 212E, 222E of this sliding shoe 21E and this brake block 22E, effect also is equal to first embodiment, and can reach good binding.
See also Fig. 5, it is the fourth embodiment of the present invention, difference is, wherein this elastic parts 23F is the flexure strip of a π font, the head-end sections 231F of the flexure strip 23F of this π font is ccontaining and be embedded among two holding part 212F, the 222F of this sliding shoe 21F and this brake block 22F, its effect also is equal to first embodiment, and can reach good binding effect.
See also Fig. 6, Fig. 7, it is the fifth embodiment of the present invention, and it comprises: a body 1B, a brake block group 2B, a ratchet head 3B, in order to pull workpiece;
This body 1B has a Yi Wo Bing 11B of portion and a head 12B, this head 12B offers an accommodation space 13B, ccontaining for this ratchet head 3B, the periphery of this ratchet head 3B has several ratchets 31B, and cooperate a C type clasp 32B and be combined into one, and the madial wall of this accommodation space 13B is provided with a breaker slot 14B, and is ccontaining for this brake block group 2B;
This brake block group 2B comprises a sliding shoe 21B, a brake block 22B and an elastic parts 23B, and in the present embodiment, this elastic parts 23B is a compression spring.This sliding shoe 21B is to should ratchet head 3B one side having a cambered surface 211B, the corresponding ratchet head 3B of this brake block 22B one side is provided with a system tooth 221B of several dentations of tool, and be respectively equipped with a projection 212B, 222B in this sliding shoe 21B corresponding end face adjacent with this brake block 22B, two ends by this elastic parts 23B are sheathed on this two projection 212B, 222B respectively, and this sliding shoe 21B and this brake block 22B are connected, by the engagement between the ratchet 31B of the system tooth 221B of this brake block 22B and this ratchet head 3B, to drive this ratchet head 3B.
During assembling, be that this elastic parts 23B is sheathed on two projection 212B, 222B to form this brake block group 2B, this brake block group 2B is packed in the breaker slot 14B, make the ratchet 31B of ratchet head 3B periphery aim at the system tooth 221B of brake block 22B, be respectively charged into this C shape clasp 32B again and form the ratchet spanner of system toothing that can unidirectional rotation.
In the above-mentioned assembling process because sliding shoe 21B and the brake block 22B of brake block group 2B all be placed in the breaker slot 14B, therefore have equally assembling easily, dismounting simply and locate effect easily.
See also Fig. 8, it is the sixth embodiment of the present invention, wherein difference is, this elastic parts 24 is a shell fragment, this shell fragment 24 shape that generally takes the shape of the letter U, and the corresponding projection 212C in these shell fragment 24 both sides, 222C are arranged with one first perforation 241 and 1 second and bore a hole 242, two ends by this shell fragment 24 are sheathed on projection 212C, 222C respectively, and sliding shoe 21C and brake block 22C are connected, effect also is same as the 5th embodiment, can reach good binding.
See also Fig. 9, it is the seventh embodiment of the present invention, wherein difference is, the shank part 11D other end of this body 1D has more one second head 15D, and this second head 15D offers one second accommodation space 16D, and is ccontaining for one second ratchet head 4, the periphery of this second ratchet head 4 has several ratchets 41, and cooperate another C type clasp 42 and be combined into one, and the madial wall of this second accommodation space 16D is provided with one second breaker slot 17D, ccontaining for one second brake block group 5;
This second brake block group 5 comprises a second sliding shoe 51, one second brake block 52 and one second elastic parts 53.Wherein this second elastic parts 53 is the shell fragment of the compression spring or the shape that generally takes the shape of the letter U, and this second elastic parts 53 is a compression spring in the present embodiment.51 pairs of this second sliding shoes should second ratchet head, 4 one sides have a cambered surface 511, these second brake block, 52 corresponding second ratchet head, 4 one sides are provided with a system tooth 521 (being and the brake block 22D homonymy that is positioned at another head 12D) of several dentations of tool, and be respectively equipped with one second projection 512 in this second sliding shoe 51 and this second brake block 52 adjacent corresponding end faces, 522, two ends by this second elastic parts 53 are sheathed on this 2 second projection 512 respectively, 522, and this second sliding shoe 51 is connected with this second brake block 52, by the engagement of 41 of the ratchets of the system tooth 521 of this second brake block 52 and this second ratchet head 4, to drive this second ratchet head 4.
During use, at first be sheathed on head 12D, when pulling clockwise, this brake block 22D makes the system tooth 221D of brake block 22D be meshed with the ratchet 31D of ratchet head 3D because of being subjected to shoring of elastic parts 23D, pulls the effect that workpiece screws to reach as the Wo Bing 11D of portion.Otherwise, when desiring to unscrew workpiece, replaceablely be inserted in workpiece for the second head 15D of the other end, with the counter clockwise direction application of force, also can reach and be convenient to pull the effect that workpiece unscrews again, and drive two ratchet head 3D, at 4 o'clock, all can reach the effect of smooth and easy rotation, and have better practicality.
By the explanation of the various embodiments described above as can be known, technological means of the present invention be utilize the system tooth of the brake block in the brake block group can be oppositely and with the ratchet engagement of ratchet head, and the sliding shoe cambered surface is resisted against the ratchet head ratchet, simplify this ratchet spanner so cause unidirectional rotation, and the brake block group all is placed in the breaker slot, so the user can be more prone to assembling, dismounting and location.
See also Figure 10 to Figure 13, it is the eighth embodiment of the present invention, and it comprises: a body 1G, a brake block group 2G, a ratchet head 3G, in order to pull workpiece;
This body 1G, it has a Yi Wo Bing 11G of portion and a head 12G, this head 12G offers an accommodation space 13G, ccontaining for this ratchet head 3G, the periphery of this ratchet head 3G has several ratchets 31G, and ratchet head 3G central authorities are polygonal poroid, and establish one first annular groove 311G in several ratchets 31G root edge ring, to being provided with one second annular groove 131G in this accommodation space 13G madial wall by the first annular groove 311G, be installed with for a C type clasp 32G, and the madial wall in this accommodation space 13G second annular groove 131G top near the Wo Bing 11G of portion is provided with a breaker slot 14G, and is ccontaining for this brake block group 2G.
This brake block group 2G comprises a guide pad 21G, a brake block 22G and an elastic parts 23G.This guide pad 21G is to should ratchet head 3G one side having a cambered surface 211G, the corresponding ratchet head 3G of this brake block 22G one side is provided with a system tooth 221G of several dentations of tool, and this guide pad 21G is respectively equipped with an ostiolate arc-shaped groove 212G, 222G with the corresponding end face of brake block 22G, the width h of each groove 212G, 222G opening is slightly less than the diameter D of this arc-shaped groove 212G, 222G, in the present embodiment, the width h of this opening is 0.8mm, and the diameter D of arc-shaped groove then is 1.0mm.In the present embodiment, this elastic parts 23G is a compression spring, each compresses the pitch diameter (pitchdiameter) of spring between groove 212G, 222G A/F h and arc-shaped groove diameter D, and the two ends of respectively compressing spring penetrate respectively among groove 212G, the 222G of this guide pad 21G, this brake block 22G and link mutually, by the engagement between the ratchet 31G of the system tooth 221G of this brake block 22G and this ratchet head 3G, to drive this ratchet head 3G.
During assembling, be that this elastic parts 23G two ends are inserted in respectively among the groove 222G of the groove 212G of this guide pad 21G and this brake block 22G to form this brake block group 2G, again this brake block group 2G is packed among the breaker slot 14G, make the system tooth 221G of the ratchet 31G aligning brake block 22G of this ratchet head 3G periphery, and this C type clasp 32G that packs into promptly finishes assembling, and form can unidirectional rotation ratchet spanner.
The guide pad 21G of brake block group 2G and brake block 22G all are placed in the breaker slot 14G in the above-mentioned assembling process, therefore have to assemble easily, dismantle simply and locate effect easily.
During use, as shown in figure 11, when Gai Wo Bing 11G of portion when pulling clockwise, this brake block 22G can be meshed the system tooth 221G of brake block 22G with the ratchet 31G of ratchet head 3G because of being subjected to shoring of elastic parts 23G, pulls the effect that workpiece screws to reach.Otherwise, when desiring to unscrew workpiece, earlier that body is upper and lower end face exchange, again when pulling Gai Wo Bing 11G of portion counterclockwise, because this brake block 22G is subjected to shoring of elastic parts 23G, this brake block 22G system tooth 221G can be meshed with the ratchet 31G of ratchet head 3G, reach and pull the effect that workpiece unscrews because of pulling Gai Wo Bing 11G of portion counterclockwise.
The ratchet head 3G of present embodiment drives and is single direction, operates more simple and has more durability; And this guide pad 21G is the design of cambered surface 211G corresponding to the side of ratchet head 3G, therefore, and when driving pawl head 3G, brake block 22G system tooth 221G is meshed with the ratchet 31G of ratchet head 3G, can rotate more smoothly, for the user, and better practicality and the convenience of tool.
See also Figure 14, it is the ninth embodiment of the present invention, wherein difference is, this elastic parts 23G has one and stretches the first shrinking section 231G and upwardly extending second a shrinking section 232G who establishes downwards, and link the connected section 233G of a N type between the first shrinking section 231G and the second shrinking section 232G, this elastic parts 23G is combined into one.
Claims (10)
1. ratchet spanner comprises: a body, a brake block group, a ratchet head, in order to pull workpiece; This body has a Yi Wo Bing portion and a head, and this head offers an accommodation space, and is ccontaining for this ratchet head, the periphery of this ratchet head has several ratchets, and cooperate a C type clasp and be combined into one, the madial wall of this accommodation space is provided with a breaker slot, and is ccontaining for this brake block group; It is characterized in that,
This brake block group comprises a sliding shoe, a brake block and an elastic parts, this sliding shoe is to should ratchet head one side having a cambered surface, the first side of the corresponding ratchet of this brake block is provided with a system tooth of several dentations of tool, and the corresponding end face with brake block of this sliding shoe is respectively equipped with a holding part, and these elastic parts two ends are respectively equipped with a location division, for linking, by the engagement between the ratchet of the system tooth of this brake block and this ratchet head, to drive this ratchet head with two holding parts of this sliding shoe and this brake block.
2. ratchet spanner according to claim 1, it is characterized in that described elastic parts is the flexure strip of a compression spring, a locating ring, a ㄇ font spring, a V-type shell fragment or a π font, wherein the head-end sections of this V-type shell fragment is two holding parts that are embedded at this sliding shoe and this brake block, and the head-end sections of the flexure strip of this π font is ccontaining and be embedded in two holding parts of this sliding shoe and this brake block.
3. ratchet spanner comprises: a body, a brake block group, a ratchet head, in order to pull workpiece; This body has a Yi Wo Bing portion and a head, and this head offers an accommodation space, and is ccontaining for this ratchet head, the periphery of this ratchet head has several ratchets, and cooperate a C type clasp and be combined into one, the madial wall of this accommodation space is provided with a breaker slot, and is ccontaining for this brake block group; It is characterized in that,
This brake block group comprises a sliding shoe, a brake block and an elastic parts, this sliding shoe is to should ratchet head one side having a cambered surface, the first side of the corresponding ratchet of this brake block is provided with a system tooth of several dentations of tool, and be respectively equipped with a projection in this sliding shoe corresponding end face adjacent with this brake block, two ends by this elastic parts are sheathed on this two projection respectively, and this sliding shoe and this brake block are connected, by the engagement between the ratchet of the system tooth of this brake block and this ratchet head, to drive this ratchet head.
4. ratchet spanner according to claim 3 is characterized in that described elastic parts is a compression spring or a shell fragment.
5. ratchet spanner according to claim 3, the shank part other end that it is characterized in that described body has more one second head, this second head offers one second accommodation space, ccontaining for one second ratchet head, the periphery of this second ratchet head has several ratchets, and cooperate another C type clasp and be combined into one, and the madial wall of this second accommodation space is provided with one second breaker slot, ccontaining for one second brake block group;
This second brake block group comprises a second sliding shoe, one second brake block and one second elastic parts, this the second sliding shoe is to should the first side of second ratchet having a cambered surface, this second brake block is to should the first side of second ratchet being provided with a system tooth of several dentations of tool, the corresponding end face that this second sliding shoe is adjacent with this second brake block is respectively equipped with one second projection, two ends by this second elastic parts are sheathed on this 2 second projection respectively, and this second sliding shoe and this second brake block are connected, by the engagement between the ratchet of the system tooth of this second brake block and this second ratchet head, to drive this second ratchet head.
6. ratchet spanner according to claim 5 is characterized in that described elastic parts is a compression spring or a shell fragment.
7. ratchet spanner comprises: a body, a brake block group, a ratchet head, in order to pull workpiece; This body, it has a Yi Wo Bing portion and a head, and this head offers an accommodation space, and ccontaining for this ratchet head, the periphery of this ratchet head has several ratchets, and ratchet head central authorities are polygonal poroid; It is characterized in that,
These several ratchet root edge rings are established one first annular groove, to being provided with one second annular groove in this accommodation space madial wall by first annular groove, be installed with for a C type clasp, and the madial wall near Wo Bing portion is provided with a breaker slot in this accommodation space second annular groove top, ccontaining for this brake block group;
This brake block group comprises a guide pad, a brake block and an elastic parts, this guide pad is to should ratchet head one side having a cambered surface, the first side of the corresponding ratchet of this brake block is provided with a system tooth of several dentations of tool, and the corresponding end face with brake block of this guide pad is respectively equipped with an ostiolate arc-shaped groove, the width of each slot opening is slightly less than the diameter of this arc-shaped groove, and each elastic parts is to replace to link this guide pad and this brake block, by the engagement between the ratchet of the system tooth of this brake block and this ratchet head, to drive this ratchet head.
8. ratchet spanner according to claim 7 it is characterized in that described elastic parts is a compression spring, and the pitch diameter (pitch diameter) of respectively compressing spring is between this slot opening width and arc-shaped groove diameter.
9. ratchet spanner according to claim 7, the optimum width that it is characterized in that described each slot opening is 0.8mm, and the optimum diameter of each arc-shaped groove is 1.0mm.
10. ratchet spanner according to claim 7, it is characterized in that described elastic parts has one and stretches first shrinking section and upwardly extending second shrinking section of establishing downwards, and link the connected section of a N type between first shrinking section and second shrinking section, this elastic parts is combined into one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101305958A CN101209546A (en) | 2006-12-27 | 2006-12-27 | Ratchet wrench |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101305958A CN101209546A (en) | 2006-12-27 | 2006-12-27 | Ratchet wrench |
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| CN101209546A true CN101209546A (en) | 2008-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2006101305958A Pending CN101209546A (en) | 2006-12-27 | 2006-12-27 | Ratchet wrench |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI393609B (en) * | 2010-12-24 | 2013-04-21 | ||
| TWI393610B (en) * | 2010-12-24 | 2013-04-21 | ||
| TWI398322B (en) * | 2010-12-24 | 2013-06-11 | ||
| CN103286718A (en) * | 2013-03-29 | 2013-09-11 | 上海齐迈五金有限公司 | Ratchet handle |
| TWI411496B (en) * | 2011-11-29 | 2013-10-11 | ||
| TWI500485B (en) * | 2014-10-30 | 2015-09-21 | Infar Ind Co Ltd | Ratchet wrench structure |
-
2006
- 2006-12-27 CN CNA2006101305958A patent/CN101209546A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI393609B (en) * | 2010-12-24 | 2013-04-21 | ||
| TWI393610B (en) * | 2010-12-24 | 2013-04-21 | ||
| TWI398322B (en) * | 2010-12-24 | 2013-06-11 | ||
| TWI411496B (en) * | 2011-11-29 | 2013-10-11 | ||
| CN103286718A (en) * | 2013-03-29 | 2013-09-11 | 上海齐迈五金有限公司 | Ratchet handle |
| CN103286718B (en) * | 2013-03-29 | 2015-07-08 | 上海齐迈五金有限公司 | Ratchet handle |
| TWI500485B (en) * | 2014-10-30 | 2015-09-21 | Infar Ind Co Ltd | Ratchet wrench structure |
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