CN105364760A - Ratchet wrench - Google Patents
Ratchet wrench Download PDFInfo
- Publication number
- CN105364760A CN105364760A CN201510081219.3A CN201510081219A CN105364760A CN 105364760 A CN105364760 A CN 105364760A CN 201510081219 A CN201510081219 A CN 201510081219A CN 105364760 A CN105364760 A CN 105364760A
- Authority
- CN
- China
- Prior art keywords
- ratchet
- torque value
- sleeve
- releasing
- securing member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention provides a ratchet wrench, which can prevent forgetting to screw fastens for fastening required members tightly and can screw the fasteners to a required torque value. The ratchet wrench comprises a ratchet part embedded in an embedding protruding part which can hold a sleeve of a bolt for fastening a required member and transfer a rotational force of one direction; a ratchet holding part used for holding the ratchet part; a torque value setting mechanism including a torque adjustment spring and an elbow mechanism, and a release mechanism including a rotating metal member and a rotation shaft. The ratchet holding part is rotated repeatedly to screw the bolt tightly. The torque value setting mechanism sets the torque applied to the bolt by the sleeve to a required torque value. The release mechanism releases the holding of the bolt by the sleeve when the torque applied to the bolt by the sleeve reaches the required torque value.
Description
Technical field
The present invention relates to the ratchet spanner forming fastened tools, described fastened tools carries out the securing members such as fastening bolt or nut for tightening to predetermined member.
Background technology
In the past, as tightening fastened tools predetermined member being carried out to the securing members such as fastening bolt or nut, propose there is various instrument.Such as, box spanner as fastened tools is the instrument that a kind of convenience is very high, a handle is combined with can the corresponding size of various securing member and the sleeve of shape, by by chimeric with the female-type interface hole being located at sleeve side for the protuberance axle being located at handle side and connect, under the head of bolt or nut being accommodated in the state in the reception hole of the opposition side being arranged on interface holes, make rotatable handle, thus by bolt or nut screwing clamping or can unscrew.
In addition, as fastened tools, have a kind of ratchet spanner, the rotary motion only repeatedly need carrying out less than about 1/2 week just can make securing member be rotated to a direction.In this kind of ratchet spanner, there will be a known a kind of ratchet spanner, it is provided with rotation adjusting portion, when revolving force when, upon rotating exceeds the power of regulation, this rotation adjusting portion can make this rotation stop, and prevents from thus applying superfluous power (with reference to patent document 1) to securing member.
In addition, as fastened tools, there will be a known a kind of ratchet spanner, when the parts that will rotate being subject to the load of the torque value exceeding setting, deviate from from chimeric recess by making fitting projection resist helical spring elastic force, releasing moment of torsion keeps, thus stops the moment of torsion exceeding setting value to the parts transmission that will rotate (with reference to patent document 2).
In addition, as fastened tools, there will be a known a kind of fastened tools etc., be provided with permanent magnet in the bolt incorporating section of box spanner, can not keep the securing member such as bolt or nut with coming off and make it to screw togather (with reference to patent document 3).
Prior art document
Patent document
Patent document 1 Japanese Patent Laid-Open 11-76265 publication
Patent document 2 Japanese Patent Laid No. 4266132 publication
Patent document 3 Japanese Patent Laid-Open 9-109045 publication
Summary of the invention
Invent technical problem to be solved
But, when adopting above-mentioned prior art to implement to tighten operation to the securing member such as bolt, nut, carry out tightening the operating personnel of operation under the state of torque value not being screwed onto the regulation preset, if the impact such as the external disturbance such as produced and interrupt tightening operation, then may occur in forget thereafter and tighten operation and terminate to tighten the situation of operation with the state of the torque value not reaching regulation.When this tighten operation time fail the torque value reaching regulation, exist and cause operating the load that relevant equipment etc. is damaged and considering to tightening.
Such as, when the pedal of escalator being answered the bolt of fastening position be not screwed to the torque value of regulation, pedal can be there is upwarp, collide with inlet port sometimes when it enters machinery indoor, thus the inlet port of pedal or Machine Room may be caused to be damaged.
The present invention because above-mentioned prior art actual state and carry out, its object is to, provide a kind of can prevent from forgeing tightening fastening securing member is carried out to predetermined member thus the ratchet spanner that reliably securing member can be screwed to the torque value of regulation.
The technical scheme that technical solution problem adopts
For reaching above-mentioned purpose, ratchet spanner of the present invention comprises: ratchet portion, and this ratchet portion comprises the sleeve that is embedded in the securing member that can be kept for fastening predetermined member and transmits the fitting projection of the revolving force in a direction; And ratchet grip part, this ratchet grip part is used for gripping this ratchet portion, by making described ratchet grip part carry out rotary motion repeatedly, the described fitting projection in described ratchet portion is rotated to a direction, and described sleeve is rotated to a described direction correspondingly, thus described securing member is tightened, it is characterized in that, this ratchet spanner comprises: torque value set mechanism, and the torque setting being acted on described securing member by described sleeve is the torque value of regulation by this torque value set mechanism; And cancel system, when the moment of torsion being acted on described securing member by described sleeve reaches the torque value of described regulation, this cancel system removes the maintenance of described sleeve to described securing member.
Invention effect
In ratchet spanner of the present invention, do not reach the torque value of the regulation set by torque value set mechanism at the moment of torsion suffered by the securing member be tightened during, securing member is in the state kept by sleeve, and when reaching the torque value of regulation, utilize cancel system to remove sleeve to the maintenance of securing member.Thus, even if because the impact such as external disturbance after interrupting tightening operation, as long as securing member is in the state kept by sleeve, the operating personnel operating this ratchet spanner just can be allowed to identify the state being in and being not adequate is tightened to securing member.That is, the present invention can prevent from forgeing tightening and carry out fastening securing member to predetermined member, thus reliably securing member can be screwed to the torque value of regulation.Thus, the present invention it is can prevent carrying on a shoulder pole in the past consider to securing member tighten the damage operating relevant equipment etc., the ratchet spanner of high reliability can be provided.
Accompanying drawing explanation
Fig. 1 is the top view of the structure of the embodiment representing ratchet spanner of the present invention, is the top view of the state representing the torque value not reaching regulation.
Fig. 2 is the important part enlarged side view in the ratchet portion that present embodiment that Fig. 1 is corresponding possesses.
Fig. 3 is the top view of the structure representing present embodiment, is the top view of state when representing the torque value reaching regulation.
Fig. 4 is the important part enlarged side view in the ratchet portion that present embodiment that Fig. 3 is corresponding possesses.
Detailed description of the invention
Below, be described according to the embodiment of accompanying drawing to ratchet spanner of the present invention.
Fig. 1 is the top view of the structure of the embodiment representing ratchet spanner of the present invention, is the top view of the state representing the torque value not reaching regulation, and Fig. 2 is the important part enlarged side view in the ratchet portion that present embodiment that Fig. 1 is corresponding possesses.
As shown in Figure 1, 2, the ratchet spanner of present embodiment comprises: ratchet portion 10, this ratchet portion 10 comprises fitting projection 9, and this fitting projection 9 to be embedded in the sleeve 8 that can keep the head 18a of the securing member of fastening predetermined member, such as bolt 18 and to transmit the revolving force in a direction; And ratchet grip part 1, this ratchet grip part 1 is for gripping this ratchet portion 10.By making this ratchet grip part 1 carry out rotary motion repeatedly, the fitting projection 9 in ratchet portion 10 is rotated to a direction, and sleeve 8 is rotated to correspondingly a direction, thus bolt 18 is tightened.
The ratchet spanner of present embodiment comprises: torque value set mechanism, and the torque setting being acted on bolt 18 by sleeve 8 is become the torque value of regulation by this torque value set mechanism; And cancel system, this cancel system is removed by the maintenance of sleeve 8 pairs of bolts 18 when the moment of torsion being acted on bolt 18 by sleeve 8 reaches the torque value of afore mentioned rules.
As shown in Figure 1, above-mentioned torque value set mechanism comprises: knob 2, and this knob 2 is located at the end of ratchet grip part 1 and can be rotated; Sliding axle 3, this sliding axle 3 can be slided by the long side direction in ratchet grip part 1 by the rotation of described knob 2; Torque adjustment spring 4, end side and the described sliding axle 3 of this torque adjustment spring 4 block; Pressing body 5, this pressing body 5 blocks with another side of described torque adjustment spring 4; Ratchet maintaining part 7, this ratchet maintaining part 7 keeps ratchet portion 10; And toggle mechanism 6, this toggle mechanism 6 connects pressing body 5 and ratchet maintaining part 7.
Ratchet grip part 1 is formed as ducted body, is configured with sliding axle 3, torque adjustment spring 4, pressing body 5, ratchet maintaining part 7 and toggle mechanism 6 in this ratchet grip part 1.
As shown in Figure 2, above-mentioned cancel system comprises: remove rod 14, and this releasing rod 14 presses bolt 18 and removes the maintenance of sleeve 8 pairs of bolts 18; Remove spring 19, this releasing spring 19 imposes to removing rod 14 power removed; And remove operation controlling organization, stop the releasing operation removing rod 14 this releasing operation controlling organization does not reach the torque value of regulation at the moment of torsion acting on bolt 18 during, and when reaching the torque value of regulation, the releasing of releasing rod 14 being operated and is implemented.Remove rod 14 and remove spring 19 and be configured at ratchet portion 10.
As shown in Figure 1, 2, above-mentioned releasing operation controlling organization comprises: rotating shaft 12, this rotating shaft 12 is arranged to planar to rotate centered by fulcrum 13, and, engage with the notch part 15 removing rod 14 during not reaching the torque value of regulation, the power of spring 19 is removed in opposing and locking releasing rod 14 makes it not to be moved; And turn metalwork 11, when reaching the torque value of regulation, this turn metalwork 11 rotates and rotating shaft 12 is rotated under the effect of ratchet maintaining part 7, with the engaging of the end with the notch part 15 of releasing rod 14 of removing rotating shaft 12.The rotating shaft 12 comprising fulcrum 13 is configured at ratchet portion 10, turn metalwork 11 is configured to be located at ratchet grip part 1 and ratchet portion 10.
In addition, as shown in Figure 2, in present embodiment, sleeve 8 comprises the magnet 16 carrying out adsorbing maintenance to the head 18a of the bolt 18 embedded.Being formed at the position relative with the lower end of removing rod 14 respectively of sleeve 8 and magnet 16 can for removing excellent 14 through holes 17 inserted.
As shown in Figure 1, 2, use the ratchet spanner of the present embodiment of said structure, when being undertaken fastening by bolt 18 pairs of predetermined member, being arranged on by sleeve 8 in ratchet portion 10 makes the embedded hole of sleeve 8 be nested in the fitting projection 9 in ratchet portion 10, and is configured to by the ratchet spanner of present embodiment make the head 18a of bolt 18 to embed in sleeve 8 in this case.Thus, the head 18a of bolt 18 is subject to the absorption of the magnet 16 be arranged in sleeve 8, and bolt 18 is remained in sleeve 8.When the adjustment of the torque value specified bolt 18, by rotation knob 2, sliding axle 3 slided and regulate the power of torque adjustment spring 4 to carry out.
In the above-described state, ratchet maintaining part 7 remains on the state do not engaged with turn metalwork 11 by toggle mechanism 6, remove rod 14 against the power of releasing spring 19 and be pushed in ratchet portion 10, remain on the state that the end of rotating shaft 12 is engaged with the notch part 15 removing rod 14.
Under this state, when making ratchet grip part 1 repeat repeatedly to rotate, by the revolving force in a direction by ratchet portion 10, fitting projection 9 and be passed to sleeve 8, thus bolt 18 is tightened.During operation is tightened to this bolt 18, under the state not reaching the torque value of regulation at the moment of torsion acting on bolt 18, the absorption that the head 18a of bolt 18 is subject to the magnet 16 in sleeve 8 keeps, and ratchet grip part 1 thus can not be made easily to depart from from bolt 18.Therefore, during the moment of torsion acting on bolt 18 does not reach the torque value of regulation, though run into the impact such as external disturbance and middle Broken bolt 18 tighten operation after, be still held in above-mentioned state.
When the moment of torsion acting on bolt 18 reaches the torque value of regulation, there is action and ratchet maintaining part 7 be shifted relative to pressing body 5 in toggle mechanism 6.Thus, ratchet maintaining part 7 makes turn metalwork 11 rotate, and under the effect of this turn metalwork 11, rotating shaft 12 rotates centered by fulcrum 13, thus the end of rotating shaft 12 is removed with the engaging of the notch part 15 removing rod 14.Therefore, as shown in Figure 3, Figure 4, releasing rod 14 is pushed into because of the power of releasing spring 19 and is formed in the through hole 17 of sleeve 8 and magnet 16, under the pressing force effect of head 18a removing rod 14 pairs of bolts 18, the ratchet grip part 1 comprising ratchet portion 10 and the sleeve 8 comprising magnet 16 are in the state of floating from the head 18a of bolt 18.Thereby, it is possible to prevent the excessive moment of torsion applying to exceed the torque value of setting to bolt 18.Further, the ratchet grip part 1 comprising ratchet portion 10 can be easily made to depart from bolt 18.
As mentioned above, in the ratchet spanner of present embodiment, do not reach the torque value of the regulation set by the torque value set mechanism comprising torque adjustment spring 4, toggle mechanism 6 etc. at the moment of torsion acting on the bolt 18 be tightened during, bolt 18 is in the state of the absorption maintenance being subject to the magnet 16 be located in sleeve 8, and when reaching the torque value of regulation, then utilize the cancel system comprising turn metalwork 11, rotating shaft 12 etc. to keep to the absorption removing the magnet 16 pairs of bolts 18 in sleeve 8.Therefore, even if after interrupting tightening operation running into the impacts such as external disturbance, as long as the absorption that bolt 18 is subject to the magnet 16 in sleeve 8 keeps, make the ratchet grip part 1 comprising ratchet portion 10 be in the state that cannot depart from easily, the operating personnel of this ratchet spanner of operation present embodiment just can be made to identify bolt 18 and be still in the state of tightening deficiency.
That is, present embodiment can prevent from forgeing the bolt 18 tightened for fastening predetermined member, reliably bolt 18 can be screwed to the torque value of regulation.By this, present embodiment can prevent to bolt 18 tighten the damage operating relevant equipment etc., the ratchet spanner of high reliability can be provided.
In addition, in above-mentioned embodiment, as be embedded in sleeve 8, for the securing member of fastening predetermined member, enumerated bolt 18, but, also can be nut as securing member.In addition, for the securing member for fastening predetermined member, even if its shape is different from bolt 18 or nut, if sleeve 8 can be embedded in and be subject to magnet 16 absorption keep, can both carry out tightening operation with the ratchet spanner of present embodiment.
Label declaration
1 ratchet grip part
2 knobs
3 sliding axles
4 torque adjustment springs
5 pressing bodies
6 toggle mechanisms
7 ratchet maintaining parts
8 sleeves
9 fitting projection
10 ratchet portions
11 turn metalworks
12 rotating shafts
13 fulcrums
14 remove rod
15 notch parts
16 magnets
17 through holes
18 bolts (securing member)
18a head
19 remove spring
Claims (5)
1. a ratchet spanner, comprising: ratchet portion, and this ratchet portion comprises the sleeve that is embedded in the securing member that can be kept for fastening predetermined member and transmits the fitting projection of the revolving force in a direction; And ratchet grip part, this ratchet grip part is used for gripping this ratchet portion, by making described ratchet grip part carry out rotary motion repeatedly, the described fitting projection in described ratchet portion is rotated to a direction, and described sleeve is rotated to a described direction correspondingly, thus described securing member is tightened, the feature of this ratchet spanner is, comprising:
Torque value set mechanism, the torque setting being acted on described securing member by described sleeve is the torque value of regulation by this torque value set mechanism; And
Cancel system, when the moment of torsion being acted on described securing member by described sleeve reaches the torque value of described regulation, this cancel system removes the maintenance of described sleeve to described securing member.
2. ratchet spanner as claimed in claim 1, is characterized in that,
Described torque value set mechanism comprises:
Knob, this knob is arranged at the end of described ratchet grip part and can rotates;
Sliding axle, this sliding axle can be slided on the long side direction of ratchet grip part by the rotation of described knob;
Torque adjustment spring, end side and the described sliding axle of this torque adjustment spring block;
Pressing body, another side of this pressing body and described torque adjustment spring is blocked;
Ratchet maintaining part, this ratchet maintaining part keeps described ratchet portion; And
Toggle mechanism, this toggle mechanism connects described pressing body and described ratchet maintaining part,
Make described ratchet grip part be formed as ducted body, and in this ratchet grip part, configure described sliding axle, described torque adjustment spring, described pressing body, described ratchet maintaining part and described toggle mechanism.
3. ratchet spanner as claimed in claim 2, is characterized in that,
Described cancel system comprises:
Remove rod, this releasing rod presses described securing member and removes the maintenance of described sleeve to described securing member;
Remove spring, the power of carrying out described releasing is put on described releasing rod by this releasing spring; And
Remove operation controlling organization, this releasing operation controlling organization, during the torque value not reaching described regulation, stops described releasing rod to carry out releasing operation, and when reaching the torque value of described regulation, makes described releasing rod implement to remove operation,
Described releasing rod and described releasing spring are configured at described ratchet portion.
4. ratchet spanner as claimed in claim 3, is characterized in that,
Described releasing operation controlling organization comprises:
Rotating shaft, this rotating shaft is arranged to planar to rotate centered by fulcrum, during the torque value not reaching described regulation, engages with described rod of removing and resists the power of described releasing spring and locking described rod of removing; And
Turn metalwork, when reaching the torque value of described regulation, this turn metalwork rotates under the effect of described ratchet maintaining part, makes described rotating shaft rotate and remove and the described engaging removing rod,
The described rotating shaft comprising described fulcrum is configured at described ratchet portion, described turn metalwork is configured to be located at described ratchet grip part and described ratchet portion.
5. ratchet spanner as claimed in claim 4, is characterized in that,
Described sleeve comprises the magnet carrying out adsorbing maintenance to embedded described securing member.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014163012A JP2016036887A (en) | 2014-08-08 | 2014-08-08 | Ratchet wrench |
| JP2014-163012 | 2014-08-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105364760A true CN105364760A (en) | 2016-03-02 |
Family
ID=55367642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510081219.3A Pending CN105364760A (en) | 2014-08-08 | 2015-02-15 | Ratchet wrench |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2016036887A (en) |
| CN (1) | CN105364760A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105773510A (en) * | 2016-05-06 | 2016-07-20 | 张广山 | Intelligent twisting device for joist steel bolt |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113814925B (en) * | 2021-10-18 | 2022-11-04 | 重庆大学 | Torque self-balancing electric wrench and remote screw disassembling and assembling method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4086829A (en) * | 1977-02-17 | 1978-05-02 | Hudgins James L | Speed handle ratchet |
| US4126062A (en) * | 1977-08-25 | 1978-11-21 | Jo-Line Tools, Inc. | Torque wrench |
| US4512218A (en) * | 1984-03-19 | 1985-04-23 | Chow Kirk K | Control bar for ratchet wrench |
| US5497682A (en) * | 1995-07-10 | 1996-03-12 | Hsu; Frank | Torsion wrench |
| CN1318452A (en) * | 2001-06-15 | 2001-10-24 | 陈远宪 | Fast two-way rotating fixed-torque spanner and its manufacture |
| CN100509296C (en) * | 2005-12-02 | 2009-07-08 | 谢智庆 | Double pivot-point torque spanner |
-
2014
- 2014-08-08 JP JP2014163012A patent/JP2016036887A/en not_active Withdrawn
-
2015
- 2015-02-15 CN CN201510081219.3A patent/CN105364760A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4086829A (en) * | 1977-02-17 | 1978-05-02 | Hudgins James L | Speed handle ratchet |
| US4126062A (en) * | 1977-08-25 | 1978-11-21 | Jo-Line Tools, Inc. | Torque wrench |
| US4512218A (en) * | 1984-03-19 | 1985-04-23 | Chow Kirk K | Control bar for ratchet wrench |
| US5497682A (en) * | 1995-07-10 | 1996-03-12 | Hsu; Frank | Torsion wrench |
| CN1318452A (en) * | 2001-06-15 | 2001-10-24 | 陈远宪 | Fast two-way rotating fixed-torque spanner and its manufacture |
| CN100509296C (en) * | 2005-12-02 | 2009-07-08 | 谢智庆 | Double pivot-point torque spanner |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105773510A (en) * | 2016-05-06 | 2016-07-20 | 张广山 | Intelligent twisting device for joist steel bolt |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2016036887A (en) | 2016-03-22 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160302 |
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| WD01 | Invention patent application deemed withdrawn after publication |