CN105307819A

CN105307819A - Marking torque wrench

Info

Publication number: CN105307819A
Application number: CN201580001008.2A
Authority: CN
Inventors: 永木孝幸; 高田润祐; 仓石胜
Original assignee: Nagaki Seiki Co Ltd
Current assignee: Nagaki Seiki Co Ltd
Priority date: 2014-05-27
Filing date: 2015-05-26
Publication date: 2016-02-03
Anticipated expiration: 2035-05-26
Also published as: JP2015223660A; CN105307819B; JP5941096B2; AU2015258243A1; AU2015258243B2; WO2015182115A1

Abstract

Provided is a marking torque wrench which operates on the basis of the movement of a thrust member, and with which it is possible to stably perform marking with respect to the leg of a bolt protruding from a nut. In this marking torque wrench (1), the rear end of a stay (20) which is provided along the operating rod (4) is connected to a thruster (6). The head side of this stay (20) is connected to the short-edge side (22a) of an L-shaped stay (22). The L-shaped stay (22) has a curved part (22c) which is pivotably supported, and the long edge (22b) side thereof extends in such a manner as to touch the top of the stamp holder (18) provided to the marking mechanism (15). The stamp holder (18) is positioned so as to be able to slide with respect to the socket (12), and houses a stamp (16) in such a manner that the stamp surface (16a) protrudes downwards. The stamp (16) is impelled in the downward direction with respect to the stamp holder (18).

Description

Mark torque spanner

Technical field

The present invention relates to a kind of torque spanner that can confirm prescribed torque, especially, relate to a kind of torque spanner, when it reaches prescribed torque, can mark fastening object marking, prevent from forgetting fastening and unnecessary again fastening.

Background technology

Up to now, fastening in order to prevent from forgetting fastening object, or the fastening object fulfiled assignment is carried out unnecessary again fastening etc., adopting various mark torque spanner.Wherein there is such structure example: for arranging toggle link and utilize the action of this toggle link to detect the torque spanner of prescribed torque between the thruster exerted a force by spring etc. and head piece, take mechanical marking mechanism.As an example, represent the mark torque spanner utilizing the action of thruster in fig .9.

In the concentrator marker built-in torque spanner 101 shown in Fig. 9, the end along the bar 120 of 104 configurations that hold a writing brush or pen-write is connected to thruster parts 106, and another side is connected to connecting rod 122.On the other hand, in the sleeve 112 can accommodating fastening object 50, insert and be configured with sliding axle 119.In this sliding axle 119, be provided with flag member 116, form with axle sleeve 118 one that can configure slidably along the periphery of sleeve 112.On this axle sleeve 118, be connected with above-mentioned connecting rod 122.。。Because such structure, so when carrying out terminal operation, once reach the moment of torsion of regulation, thruster parts 106 are extruded a little to head piece 102 side, and this action via bar and connecting rod transmission, thus will depress axle sleeve.Therefore, inner flag member can be fallen, and can mark fastening object marking.

Prior art document

Patent document

Patent document 1: Japanese Unexamined Patent Publication 2-78279 publication

Summary of the invention

Invent technical problem to be solved

But in above-mentioned concentrator marker built-in torque spanner 101, during generation prescribed torque, the action of thruster parts 106 is very small.Therefore, although when shape (projecting height) is fixing as the head of bolt for fastening object 50 easy annotated mark, be difficult when the screw rod side annotated mark of the bolt outstanding to nut side.

That is, in the terminal operation of nut, because of the thickness of fastened thing or the difference of size, the overhang of the threaded shank of bolt can be different.Therefore, although need power to transmit in the mode that can obtain enough strokes in flag member 116 side, because the action of the thruster parts 106 of drive source is small, so very difficult.

In addition, for the threaded shank of the different bolt of projecting height, necessity is obtained in flag member 116 side and stroke is also more difficult fully.

Therefore, the object of the present invention is to provide a kind of mark torque spanner, its action according to the motion of thruster parts, and stably can mark the threaded shank of the bolt given prominence to from nut.

The technical scheme that technical solution problem adopts

For reaching above-mentioned purpose, mark torque spanner of the present invention is connected by toggle link between the sleeved head of tool with the thruster exerted a force by the rear end side from action bars, carry out the mark torque spanner marked to the motion of head side according to thruster, it is characterized in that, it has: the beater of mark; Beater support, it can slide along the fastening axis direction of sleeve, and to make beater keep beater facing to the mode of terminal operation side; Support force application element, it exerts a force towards the direction making beater support away from terminal operation side; Beater force application element, it to beater force, gives prominence to facing to terminal operation side to make beater in beater support; Pole, its one end is connected to thruster, and configures along action bars; And linkage, it is located between the other end extended to head side of pole and beater support, and thruster is converted to the displacement of beater support to terminal operation side to the displacement of head side.

In addition, the feature of mark torque spanner of the present invention is, on the basis of said structure, linkage is made up of L-type pole, this L-type pole is that fulcrum can be supported by axle rotationally with bending position, further, the minor face of this L-type pole is connected to pole, long limit extending with the position of the end abutment of terminal operation side opposite side towards same beater support.

In addition, the feature of mark torque spanner of the present invention is, on the basis of said structure, beater support is formed with opening portion in terminal operation side and gives prominence to the cartridge being formed with spring base at outer peripheral face, support force application element makes spring base carry out the first spring exerted a force away from the mode of terminal operation side, projecting near the beater face of beater have shoulder, this shoulder can engage with the inner peripheral of the opening portion of beater support, and beater force application element is the second spring exerted a force to terminal operation side by beater.

In addition, the feature of mark torque spanner of the present invention is, on the basis of said structure, sleeve is formed with orthohexagonal resettlement section in terminal operation side, in addition, there is resin-made lid, this resin-made lid can carry out dismounting relative to sleeve, and form outer peripheral face by six medial plane and six flexure planes, wherein, six medial plane can with six face inscribes of the inner side of the terminal operation side of sleeve, six flexure planes are formed between adjacent medial plane continuously, and it is slightly larger than the distance from this center to medial plane apart from the distance at center, and, the ink holding member that can abut with beater face is embedded with at the recess of the one end being formed at this resin-made lid.

Invention effect

As mentioned above, according to the present invention, when reaching the moment of torsion of regulation, according to the displacement of thruster to head side, pole is moved along action bars to head side, in addition, by being connected to the linkage of pole, beater support overcomes the force of beater force application element under terminal operation side pressure.Thus, fastening object is connected to from the beater face that beater support is outstanding to terminal operation side and annotated mark.

Now, because beater is exerted a force by towards terminal operation side, so distance between beater face and fastening object is inconsistent, beater can be resisted beater force application element and keep out of the way in beater support, the impact produced because distance is different can be absorbed.

In addition, according to the present invention, except above-mentioned effect, the L-type pole used for forming linkage is configured to make minor face be connected to the pole be connected with thruster, that make long side be connected to beater support with end that is terminal operation side opposite side, and can be supported by axle rotationally at bending position, so thruster athletic meeting is slightly exaggerated and is reflected in the motion of beater support towards fastening axis direction.

Like this, because the stroke of beater support becomes large, even if so when the projecting height of fastening object exists deviation, also can stably mark.

In addition, according to the present invention, except above-mentioned effect, because the outer peripheral face of the first helical spring along beater support is configured as support force application element, and adopt the second helical spring as beater force application element, so the different helical spring of coil diameter can be combined, thus can save two force application elements are set spatially.

In addition, according to the present invention, except above-mentioned effect, by six medial plane that can abut with orthohexagonal sleeve interior surface with the flexure plane that adjacent outer plane is connected to each other is alternately arranged, form the outer peripheral face of resin-made lid, further, be formed as flexure plane significantly to give prominence to slightly toward outside diameter than medial plane.Thus, to make medial plane insert resin-made lid along the mode of the inner surface of sleeve, and when making resin-made lid take up the rotation of solid axis, along with the elastic deformation of resin, flexure plane can be crushed, and makes the outer peripheral face of lid be crimped on the inner surface of sleeve and stablize.

In addition, because be embedded with ink holding member at the recess of the one end being formed at resin-made lid, just can protect with the state making beater face be attached with ink so only insert resin-made lid.

Accompanying drawing explanation

Fig. 1 is the side view cutaway drawing of the internal structure of the mark torque spanner representing embodiment of the present invention.

Fig. 2 is the vertical view cutaway drawing of the internal structure of the mark torque spanner representing Fig. 1.

Fig. 3 is the overall perspective view of the mark torque spanner of Fig. 1.

Fig. 4 is the sectional view amplified by the head periphery of Fig. 1.

Fig. 5 represents the operating state of the mark torque spanner of Fig. 1, and (a) is the amplification view representing the state that the projecting height of bolt is larger, and (b) is the amplification view representing the state that the projecting height of bolt is less.

Fig. 6 is the stereogram of the resin-made lid of the mark torque spanner representing embodiment of the present invention.

Fig. 7 is the amplification view representing the state resin-made lid of Fig. 6 being installed on the mark torque spanner of Fig. 1.

Fig. 8 is the enlarged drawing observed from sleeve side of the installment state of the resin-made lid representing Fig. 6, and (a) represents the figure of medial plane along the state of sleeve interior surface, and (b) represents that flexure plane is crimped on the figure of the state of sleeve interior surface.

Fig. 9 is the sectional view representing existing concentrator marker built-in torque spanner.

Detailed description of the invention

Below, the mark torque spanner of embodiment of the present invention is described with figure.The overall structure of mark torque spanner 1 is described with Fig. 1 to Fig. 3, describes the peripheral structure of the head 2a of head piece 2 with Fig. 4 in detail.In addition, action specification is carried out with Fig. 5.In Fig. 6 to Fig. 8, be the structure of resin-made lid 30 and the explanation of use form.

In Fig. 1, in order to make internal structure clear and definite, represented by the sectional view observing mark torque spanner 1 entirety from the side.In addition, Fig. 2 is by the mark torque spanner 1 of diagrammatic top-view representation 1.In Fig. 2, identical with Fig. 1, in order to make internal structure clear and definite, represent overall by sectional view.

With reference to Fig. 1,2, the mark torque spanner 1 of present embodiment is provided with force application spring 8 in rear end side.By this force application spring 8, thruster 6 is exerted a force by headward side.This thruster 6 is connected to the head axle 2b of head piece 2 via toggle link 10, will exert a force to head 2 side and transmit.Because there is such structure, so once terminal operation reaches the moment of torsion of regulation, thruster 6 will overcome the force of force application spring 8 and be pushed back rear end side.

In the present embodiment, the end along the rear end side of the pole 20 of action bars 4 configuration is connected to thruster 6.As shown in Figure 2, pole 20 and toggle 10a are connected to thruster 6 via identical connecting axle 21 together.In addition, elongated hole is formed with at the upper surface of action bars 4, with the motion making connecting axle 21 can follow thruster 6.

The end of the head 2a side of pole 20 is connected to the minor face 22a side of L-type pole 22.L-type pole 22 can be rotated the earth's axis and be supported on sweep 22c.In order to observe axle support structure, with reference to Fig. 3.Fig. 3 represents the overall perspective view of mark torque spanner 1.In addition, in figure 3, represent the exploded view protecting the lid 23 of L-type pole 22 to be removed with solid line, represent installment state with dotted line.As shown in Figure 3, the sweep 22c of L-type pole 22 is supported by axle in the mode clipped by two pillars 25.

The headward 2a side of long limit 22b of L-type pole 22 extends, and its front end arrives marking mechanism 15.On the mark torque spanner 1 of present embodiment, be provided with marking mechanism 15 in collecting as the top of the bolt 51 of fastening object and the sleeve 12 of nut 52 (aftermentioned).The outside of this marking mechanism 15 is surrounded by the lid 17 of tubular.With reference to Fig. 1, be provided with beater support 18 in the inside of this lid 17 in the mode can slided to fastening axis A direction.

Here, in order to represent the detailed construction of marking mechanism 15, with reference to Fig. 4.Fig. 4 is the sectional view amplified by the head 2a periphery of mark torque spanner 1.As mentioned above, the beater support 18 be located at above sleeve 12 is arranged to can along the inner slide of sleeve 12.Above the periphery of this beater support 18, be provided with spring base 18c, between this spring base 18c and the upper end of sleeve 12, be configured with helical spring 26 (the first helical spring).By this helical spring 26 by beater support 18 (direction left from resettlement section on fastening axis direction) force upward, beater support 18 is in the state lifted by the top towards sleeve 12.

Beater face 16a beater 16 is downward configured with in the inner side of this beater support 18.Known to Fig. 4, be formed with opening portion 18b in the below (terminal operation side) of beater support 18, the beater face 16a of beater 16 is to configure from this mode that Open Side Down just gives prominence to.In addition, near the 16a of beater face, be formed with the shoulder 16b larger than the opening portion 18b diameter of beater support 18, so beater 16 is stuck in beater support 18.The top of this beater 16 is also configured with the helical spring 28 less than helical spring 26.The mode compressed to make this helical spring 28 by stent helix part 18d by the closed upper part of beater support 18.Therefore, beater 16 becomes the state exerted a force by the terminal operation side towards sleeve 12.Like this, the force application element as beater support is provided with helical spring 26, in addition, is provided with helical spring 28 as beater force application element.

The rear end side opening of the lid 17 of tubular, the end of the long limit 22b of above-mentioned L-type pole 22 is inserted wherein in the mode abutted.

Because have said structure, so in terminal operation, when tightening torque reaches more than setting, pole 20 is pulled to rear end side by thruster 6, and meanwhile, the minor face 22a side of L-type pole 22 is also pulled to rear end side.Therefore, on the long limit 22b of L-type pole 22, execute the power depressed by stent helix part 18d.Next, use Fig. 5 that this action is described.

In Figure 5, two operating states of mark torque spanner 1 are compared.In Fig. 5 (a), represent the operating state under the state that the threaded shank of bolt 51 is longer, in Fig. 5 (b), represent the operating state under the state that the threaded shank of bolt 51 is shorter.From Fig. 5 (a), when the threaded shank of bolt 51 is longer, beater face 16a is connected to the inboard of sleeve 12.But, because the rotational angle of L-type pole 22 is determined, so constant all the time by the displacement of thruster 6 (with reference to Fig. 1).In this case, because helical spring 28 significantly shrinks, therefore correspond to the bolt 51 of screw rod minister.On the other hand, in the state of Fig. 5 (b), because the threaded shank of bolt 51 does not have the length of Fig. 5 (a) state, so the position of beater face 16a below is slightly connected to the threaded shank of bolt 51.Therefore, want large compared to the coil width 28a of the helical spring 28 shown in Fig. 5 (a), the coil width 28a shown in Fig. 5 (b).In addition, for the coil width 26a of helical spring 26 being configured at beater support 18 periphery, because the impact be subject to because of external force compared with small coil springs 28 is little, so almost there is no difference under each state.

Like this, in the mark torque spanner 1 of present embodiment, because the difference of the projecting height of bolt 51 can absorb via helical spring 28, so regardless of the thickness of the fastened parts picked up by bolt 51 and nut 52 or size, stably mark action can be carried out all the time.

Next, Fig. 6 represents the resin-made lid 30 that can cover the resettlement section of the sleeve 12 of the mark torque spanner 1 of present embodiment.As shown in Figure 6, resin-made lid 30 is formed with six medial plane 30a at outer peripheral face.This resin-made lid 30 is formed as the size can be abutted the inner peripheral surface of sleeve 12 by six medial plane 30a.In addition, between medial plane 30a adjacent one another are, flexure plane 30b is formed with.Like this, in resin-made lid 30, six medial plane 30a and six flexure plane 30b alternate combinations and form outer peripheral face.In Fig. 6, in order to make this structure become clear and definite, the border chain-dotted line between medial plane 30a and flexure plane 30b is illustrated.In addition, as can be seen from Figure 6, one end of resin-made lid 30 is formed with recess 30c, in this recess 30c, is provided with ink holding member 32.Secondly, the state this resin-made lid 30 being installed on sleeve 12 is represented with Fig. 7.

As shown in Figure 7, because the recess 30c of resin-made lid 30 is formed as the diameter roughly the same with beater face 16a, so once resin-made lid 30 inserts sleeve 12, the form of recess 30c is inserted in the 16a side, beater face that will become beater 16.Now, because beater face 16a is connected to the ink holding member 32 in recess 30c, so can ink be coated with on the 16a of beater face.Thereby, it is possible to protection beater face 16a, and prevent beater face 16a dry.

Secondly, Fig. 8 represents the installment state of the resin-made lid 30 observed from the collecting side of sleeve 12.In Fig. 8 (a), represent that the medial plane 30a of resin-made lid 30 is connected to the state of the inner surface of sleeve 12.On the other hand, in Fig. 8 (b), represent that the flexure plane 30b of resin-made lid 30 is crimped on the state of the inner surface of sleeve 12.

In fig. 8, in order to clearly insert the configuration of the resin-made lid 30 of sleeve 12, specific curvature Mian30bYu center being connected with chain-dotted line and represents.Thus, when becoming the state of Fig. 8 (b) from the state of Fig. 8 (a), resin-made lid 30 takes up solid axis (with reference to Fig. 3) and rotates 30 degree.The resin-made lid 30 of present embodiment is because be that to be formed as flexure plane 30b like this more outstanding to radial direction than medial plane 30a, so after inserting along the mode of the inner surface of sleeve 12 with medial plane 30a, rotate by taking up solid axis, just with the elastic deformation of resin, flexure plane 30b can be crimped on the inner surface of sleeve 12, thus resin-made lid 30 stably can be held in sleeve 12.In Fig. 8 (b), 6 places shown in arrow are applied with pressure from flexure plane 30b.

In addition, in the above-described embodiment, as support force application element and beater force application element, all exemplified with the helical spring structure of use.But, be not limited thereto, even if it is also harmless that other elastomeric elements such as leaf spring are used separately as force application element.

In addition, in the above-described embodiment, as linkage power being delivered to beater support from pole, exemplified with the structure of a use L-type pole.But being not limited thereto, as long as can increase the power from pole and make the sufficient structure of the stroke of beater support, then also can be the connecting rod that multiple parts form.

In addition, in the above-described embodiment, the structure with ratchet mechanism is illustrated, even but not have the torque spanner of ratchet mechanism also harmless.

In addition, in the above-described embodiment, routine as of the flexure plane forming resin-made lid outer peripheral face, show outstanding to the outer direction and there is no the example of the smooth surface of flex point, as long as but the shape more outstanding to external diameter side than medial plane, even the shape that waveform etc. have multiple flex point is also harmless.And length direction shape is uneven also harmless.Be formed with the part more outstanding to external diameter side than medial plane in region at least in insertion sleeve, just can obtain identical effect.

(symbol description)

1 mark torque spanner

2 head pieces

2a head

2b head axle

4 action bars

4a elongated hole

6 thrusters

8 force application springs

10 toggle links

10a toggle

12 sleeves

12a resettlement section

12b hook tooth

14 switching parts

14a ratchet pawl

15 marking mechanism

16 beaters

16a beater face

16b shoulder

17 lids

18 beater supports

18a outer peripheral face

18b opening portion

18c spring base

18d stent helix part

20 poles

21 connecting axles

22L type pole (linkage)

22a minor face

The long limit of 22b

22c sweep

23 lids

24 fulcrums (linkage)

25 pillars

26 helical springs (the first helical spring, support force application element)

26a coil width

28 helical springs (the second helical spring, beater force application element)

28a coil width

30 resin-made lids

30a medial plane

30b flexure plane

30c recess

32 ink holding members

51 bolts (fastening object)

52 nuts (fastening object)

Claims

1. a mark torque spanner, is connected by toggle link between the sleeved head of tool with the thruster exerted a force by the rear end side from action bars, marks, it is characterized in that having according to the motion of described thruster to head side:

The beater of mark;

Beater support, it can move along the fastening axis direction of described sleeve, and to make beater keep described beater facing to the mode of terminal operation side;

Support force application element, it exerts a force towards the direction making described beater support away from terminal operation side;

Beater force application element, it exerts a force to described beater in described beater support, to make described beater outstanding towards described terminal operation side;

Pole, its one end is connected to described thruster, and configures along action bars; And

Linkage, it is located between the other end extended to described head side of described pole and described beater support, and described thruster is transformed into the displacement of described beater support towards described terminal operation side towards the displacement of described head side;

2. mark torque spanner as claimed in claim 1, it is characterized in that, described linkage is made up of L-type pole, this L-type pole is that fulcrum can be supported by axle rotationally with bending position, and, the minor face of this L-type pole is connected to described pole, and long limit is towards extending with the position of the end abutment of described terminal operation side opposite side with described beater support.

3. mark torque spanner as claimed in claim 1 or 2, it is characterized in that,

Described beater support is formed with opening portion in described terminal operation side and on outer peripheral face, gives prominence to the cartridge being formed with spring base;

Described support force application element is the first helical spring that described spring base is exerted a force away from the mode of described terminal operation side;

Projecting near the described beater face of described beater have shoulder, and this shoulder can engage with the inner peripheral of the opening portion of described beater support;

Described beater force application element is the second helical spring exerted a force to described terminal operation side by described beater.

4. mark torque spanner as claimed any one in claims 1 to 3, it is characterized in that,

Described sleeve is formed with orthohexagonal resettlement section in described terminal operation side,

In addition, described mark torque spanner has resin-made lid, this resin-made lid can carry out dismounting relative to described sleeve, and form outer peripheral face by six medial plane and six flexure planes, wherein, described six medial plane can with six face inscribes of the inner side of the described terminal operation side of described sleeve, described six flexure planes are formed between adjacent described medial plane continuously, and it is slightly large to the distance of described medial plane from this center apart from the distance ratio at center, and, the ink holding member that can abut with described beater face is embedded with at the recess of the one end being formed at this resin-made lid.