CN202701451U - Fixed distance device and operation tool - Google Patents
Fixed distance device and operation tool Download PDFInfo
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- CN202701451U CN202701451U CN 201220344275 CN201220344275U CN202701451U CN 202701451 U CN202701451 U CN 202701451U CN 201220344275 CN201220344275 CN 201220344275 CN 201220344275 U CN201220344275 U CN 201220344275U CN 202701451 U CN202701451 U CN 202701451U
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- course setter
- component parts
- course
- rod
- setter
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Abstract
The utility model provides a fixed distance device and an operation tool. The fixed distance device corresponds to length types of tool drills installed on the operation tool conducting drilling operation. The fixed distance device is installed on a hammer drill (100) provided with a drill (200) of various lengths selectively and used for conducting drilling operation. A fixed distance rod (1) is used for preventing the drill (200) from invading into a position of a machined material deeper than specified drilling depth and installed on the hammer drill (100) in a method of extending out in the long-axis direction of the drill (200). The fixed distance device can be set into various lengths according to the length of the drill (200).
Description
Technical field
The utility model relates to and being installed in for course setter power tool, the regulation perforate degree of depth of implementing the perforate operation and the power tool with course setter.
Background technology
For example, as described in patent documentation 1, known have a kind of power tool, and it implements the perforate operation by making the instrument screwdriver bit of installing rotate to machined material.In order to improve operability and stability, can the side grip that grasp for the user be installed at this power tool.Be fixed with the stopper-rod of metal material of the working depth of regulation instrument screwdriver bit on this side grip, this stopper-rod advances by the Limit Tool screwdriver bit, the regulation working depth.
Patent documentation 1:JP JP 2010-264532 communique
Yet when using power tool that machined material is implemented the perforate operation, for the power that the user is applied on the power tool passes to machined material effectively, short instrument screwdriver bit is preferred.On the other hand, to relying on the be beyond one's reach zone of machined material of short instrument screwdriver bit, for example, the zone that power tool itself can't approach, zone that namely relies on the distance between the users such as zone that the shorter tools screwdriver bit can't perforate, ceiling and machined material etc. is located, when implementing the perforate operation, long instrument screwdriver bit is preferred.When the length that is installed in the instrument screwdriver bit on the power tool had polytype, no matter be the hole that the instrument screwdriver bit with any length forms out, hole depth all need to manage with identical precision.
The utility model content
Therefore, the utility model Given this, purpose is to provide a kind of technology that can both manage the perforate degree of depth when implementing the perforate operation with any means screwdriver bit in the instrument screwdriver bit of different lengths.
For solving above-mentioned problem, optimal way according to course setter of the present utility model, the instrument screwdriver bit that different lengths optionally is installed is implemented the power tool of perforate operation, course setter is installed, and the instrument screwdriver bit that this course setter restriction is installed is not invaded more than the perforate degree of depth of machined material regulation.This course setter can according to the length kind of the instrument screwdriver bit that is installed in power tool, be set different lengths for to be installed in power tool to the extended mode of the long axis direction of instrument screwdriver bit.In other words, even if for when the instrument screwdriver bit of arbitrary length is installed, can both set the perforate degree of depth of the regulation corresponding with the instrument screwdriver bit that is mounted, course setter is changed into different lengths.At this moment, the position that course setter is installed in power tool is, on the long axis direction of instrument screwdriver bit, the front end of course setter is than the front of the more close instrument screwdriver bit of the cardinal extremity of erecting tools screwdriver bit, and than the more close base end side of the front end of instrument screwdriver bit.Course setter " is installed in power tool " and preferably comprises, and course setter directly is installed on the mode of power tool main body and the mode that course setter is installed indirectly by the component parts such as side grip that are installed in power tool.
According to the utility model, course setter be because can be set as different lengths according to the length kind of instrument screwdriver bit, therefore for the instrument screwdriver bit of arbitrary length, can both set the front end of the perforate degree of depth that is instrument screwdriver bit to the distance of the front end of course setter, precision is managed the perforate degree of depth well.
According to the preferred configuration of the related course setter of the utility model, course setter is made of a plurality of course setter component parts, by a plurality of course setter component parts of mutual dismounting, can be different lengths with the length setting of course setter.
According to this form, because course setter is made of removable a plurality of course setter component parts, therefore, with the simple structure of a plurality of course setter component parts of dismounting only, just can change the total length of course setter.Thus, can course setter be set as different lengths according to the length kind of instrument screwdriver bit.
According to the further form of the related course setter of the utility model, the course setter component parts of the side in two course setter component parts of adjacency has the fitting portion chimeric with the opposing party's course setter component parts.This fitting portion has embedded hole section, and this embedded hole section and the opposing party's course setter component parts is chimeric; Protuberance, this protuberance are arranged to from forming the wall of embedded hole section, crisscross the giving prominence to of intersecting towards the long axis direction with a side course setter component parts; And force application part, this force application part on crisscross to the inboard application of force of protuberance towards described embedded hole section.In addition, the opposing party's course setter component parts has engaging recessed part, and this engaging recessed part engages with protuberance when this opposing party's course setter component parts is fitted to embedded hole section." being arranged to from the outstanding protuberance of wall that forms embedded hole section ", can be the male member integrally formed with the wall that forms embedded hole section, can also be the convex parts separate with the wall that forms embedded hole section.
According to this form, carried out when chimeric at two course setter component parts of adjacency, engaging recessed part engages with protuberance, and protuberance is biased to engaging recessed part, therefore chimeric, two course setter component parts of dismounting easily.Thus, can change the total length of course setter.Its result can be set as different lengths with course setter according to the length kind of instrument screwdriver bit.
According to the further form of course setter of the present utility model, course setter is made of a plurality of slide units of mutual slip, can be telescopicly be different lengths with the length setting of course setter." telescopic " refers to, in other words, also can be described as telescope-type, preferably comprises retractile telescopic structure.
According to this form, a plurality of slide units are slided, just can change the total length of course setter.Its result can be set as different lengths with course setter according to the length kind of instrument screwdriver bit.
According to the preferred configuration of power tool of the present utility model, the power tool described course setter of any one in the scheme 1 ~ 4 that possesses skills.
According to this form, power tool has the length kind according to the instrument screwdriver bit that is mounted, can be set as the course setter of different lengths, therefore for the instrument screwdriver bit of arbitrary length, can both set the perforate degree of depth that is the distance from the front end of instrument screwdriver bit to the course setter front end, can precision manage well the perforate degree of depth.
According to the further form of power tool of the present utility model, the installation portion of course setter is being installed, can change the installation site on the long axis direction of course setter.As the form of " installation portion of course setter is installed ", the part that is installed in the power tool main body or its component parts when indirectly course setter being installed by the component parts such as side grip that are installed in power tool when directly course setter being installed on the power tool main body are equivalent to this.
According to this form, can course setter be set as different lengths according to the length kind of instrument screwdriver bit, therefore and can change at installation portion the installation site of course setter, can be easily be set as the perforate degree of depth that is the distance from the front end of instrument screwdriver bit to the front end of course setter multistage.
According to the utility model related the further form of power tool, the dust-collection element that control of dust is used is installed, this dust-collection element covers the circumferential complete cycle on the long axis direction of instrument screwdriver bit.
During the management perforate degree of depth, such as can by on the instrument screwdriver bit, directly making marks etc., managing the perforate degree of depth by the injection distance of the visual instrument screwdriver bit of user in machined material.But the situation of the dust-collection element of the circumferential complete cycle on the long axis direction of covering instrument screwdriver bit is installed for power tool, and the user can't direct visual instrument screwdriver bit, and the very difficult precision well injection distance of management tool screwdriver bit is the perforate degree of depth.Therefore, by course setter is installed, can manage the perforate degree of depth shown in this form.And, course setter being set especially for the power tool of the dust-collection element that covering instrument screwdriver bit complete cycle is installed, practicality is high.
According to the utility model, when carrying out the perforate operation with the arbitrary instrument screwdriver bit in the instrument screwdriver bit of different lengths, can both split hole depth and manage.
Description of drawings
Fig. 1 is the partial sectional view that is illustrated in the unitary construction under the state that short hammer bit is installed on the hammer drill of embodiment of the present utility model.
Fig. 2 is the top view of the hammer drill form of Fig. 1.
Fig. 3 is the front view of side grip that expression is installed in the hammer drill of Fig. 1.
Fig. 4 is the outside drawing that expression links the stopper-rod that mobile jib and extension rod form.
Fig. 5 is the outside drawing of the mobile jib of expression stopper-rod.
Fig. 6 is the cutaway view of the extension rod of expression stopper-rod.
Fig. 7 is the amplification view of the linking portion of the mobile jib of stopper-rod of presentation graphs 4 and extension rod.
Fig. 8 is the partial sectional view of the state of the expression hammer drill that will long hammer bit be installed on Fig. 1.
Fig. 9 is the top view of the hammer drill form of Fig. 8.
Figure 10 is the partial sectional view of stopper-rod of the variation of expression embodiment of the present utility model.
Figure 11 is expression with the stretch partial sectional view of the state opened of the total length of the stopper-rod of Figure 10.
Figure 12 is the amplification view of the linking portion of the mobile jib of stopper-rod of Figure 11 and extension rod.
Symbol description
1,1a ... stopper-rod (course setter); 2,2a ... mobile jib (course setter component parts); 3,3a ... extension rod (component parts of course setter); 4,4a ... slot; 5,5a ... recess (engaging recessed part); 6 ... the mobile jib fitting portion; 7 ... embedded hole (embedded hole section); 7a ... hollow space; 8,8a ... steel ball; 9 ... leaf spring (force application part); 10 ... cutter holder; 20 ... housing; 30 ... handle; 50 ... motor; 51 ... rotating shaft; 52 ... driven wheel; 60 ... movement conversion mechanism; 61 ... the 1st driven gear; 62 ... bent axle; 63 ... bent plate; 64 ... crank arm; 65 ... piston; 66 ... cylinder; 70 ... transmission mechanism; 80 ... hammer bank; 100 ... hammer drill; 110 ... main part; 120 ... battery; 200 ... drill bit; 300 ... dust collect plant; 301 ... installation portion; 302 ... dust gathering arrester; 303 ... connecting portion; 400 ... side grip; 405 ... the bar installation portion.
The specific embodiment
Below, elaborate embodiment of the present utility model with reference to Fig. 1 ~ Fig. 7.In the present embodiment, as an example of power tool, use the rotation by drill bit to come to describe at the hammer drill of machined material enforcement perforate processing.Fig. 1 is the partial sectional view of the side view of hammer drill 100, and Fig. 2 is the top view of the fore-end that is used for the installation drill bit of hammer drill 100.As shown in Figure 1, hammer drill 100 consists of take main part 110 as main body.And hammer drill 100 be separately installed with can dismounting drill bit 200, dust collect plant 300 and side grip 400.Below, with the front side as hammer drill 100, the left side of Fig. 1, with the right side of Fig. 1 rear side as hammer drill, with the left and right directions of Fig. 1 100 fore-and-aft direction as hammer drill, the above-below direction of Fig. 1 describes as the above-below direction of hammer drill 100.
Cutter holder 10 can keep drill bit 100 removably.This cutter holder 10 can keep multiple drill bit 200, for example drill bit 200, the drill bit 200 of different lengths of multiple thickness.Fig. 1 has represented to be equipped with the hammer drill 100 of stub drill 200 for the length kind.In addition, drill bit 200 is enforcement configuration examples corresponding with " instrument screwdriver bit " of the present utility model.
Housing 20 is to combine by the pair of shells that will be almost symmetric figure is involutory, and motor 50, movement conversion mechanism 60, transmission mechanism 70 and hammer bank 80 have been taken in the inboard.
Motor 50 is disposed in the housing 20 in the upwardly extending mode of the upper and lower of hammer drill 100 with rotating shaft 51.Driven wheel 52 is arranged at the upper end of rotating shaft 51.And, above rotating shaft 51, dispose movement conversion mechanism 60, transmission mechanism 70 and hammer bank 80.
Movement conversion mechanism 60 is the mechanisms that the rotation output of motor 50 are converted to the motion of hammer drill 100 on fore-and-aft direction.That is, movement conversion mechanism 60 consists of take the first driven gear 61, bent axle 62, bent plate 63, crank arm 64, piston 65 and cylinder 66 as main body.The first driven gear 61 engages with driven wheel 52, accepts the rotation output of motor 50.Bent axle 62 constitutes and the rotation of the first driven gear 61 one, and bent plate 63 is installed in bent axle 62, and crank arm 64 is linked to bent plate 63.The front end of crank arm 64 and piston 65 link.In addition, piston 65 constitutes, and moves back and forth at cylinder 66 interior fore-and-aft directions along hammer drill 100.Constitute thus following crank mechanism, when the rotation of motor 50 output was passed to the first driven gear 61, then bent axle 62, bent plate 63 be with 61 rotations of the first driven gear, thereby crank arm 64 and piston 65 move along fore-and-aft direction.
Transmission mechanism 70 is configured in the front side of movement conversion mechanism 60.Namely, transmission mechanism 70 take the second driven gear 71, jackshaft 72, drive bevel gear 73 and by dynamic bevel gear 74 for the main body formation.The second driven gear 71 engages with driven wheel 52, accepts the rotation output of motor 50.Jackshaft 72 constitutes with the second driven gear 71 one and rotates.Drive the front end that bevel gear 73 is arranged at jackshaft 72.And engaged with driving bevel gear 73 by dynamic bevel gear 74, the rotation of jackshaft 72 is delivered to by dynamic bevel gear 74 and makes it to rotate.In addition, by the rotating shaft coaxle configuration of dynamic bevel gear 74 with cutter holder 10, at the rear of cutter holder 10, with cutter holder 10 combinations.
Hammer bank 80 is positioned at the top of movement conversion mechanism 60, and is configured in the rear of cutter holder 10.Hammer bank 80 is the output on the fore-and-aft direction of the hammer drill 100 that will be converted to from the rotation of motor 50 output by movement conversion mechanism 60, passes to the mechanism of drill bit 200 as impulsive force.Be hammer bank 80 take ram 81 with impact bolt 82 for the main body formation.Ram 81 is the hammer banks that can be disposed at slidably in the cylinder 66.Impact bolt 82 and be configured in the place ahead of ram 81, and constitute, when ram 81 moves back and forth along fore-and-aft direction, with ram 81 collisions.In addition, impact bolt 82 constitutes the rear end butt with the drill bit 200 that is installed in its front side, and the impulsive force that ram 81 is collided passes to drill bit 200.In addition, between the piston 65 at ram 81 and rear, in the space that is surrounded by cylinder 66, form air chamber 83.Air chamber 83 constitutes change by the air pressure in the air chamber 83 that is caused by the sliding action of piston 65 makes ram 81 move up in front and back.
Trigger 31 is configured in handle 30, by operating trigger 31, via power line 32 50 energisings from external power source to motor.
As shown in Figure 1 and Figure 2, dust collect plant 300 can be arranged at the front side of the main part 110 of hammer drill 100 removably.Dust collect plant 300 take installation portion 301, dust gathering arrester 302 and the connector 303 that is used for connecting not shown suction device be the main body formation.Form for drill bit 200 slotting logical through holes at installation portion 301.In addition, drill bit 200 is being inserted through under the state of through hole, with installation portion 301 to install fixing with the chimeric mode of the leading section of housing 20.Dust gathering arrester 302 constitutes, and 200 long axis direction extends to the front end of drill bit 200 from installation portion 301 along drill bit, and covers the complete cycle of drill bit 200.This dust gathering arrester 302 consists of in the retractile mode in accordion-like ground.Connector 303 forms in the mode that is connected with installation portion 301, and the place ahead is communicated with dust gathering arrester 302, and the rear opening, not shown suction device is connected with opening.In addition, dust gathering arrester 302 is enforcement configuration examples corresponding with " dust-collection element " of the present utility model.
Secondly, with reference to Fig. 3, side grip 400 is described.Side grip 400 is removable installed in the front side of hammer drill 100.Side grip 400 is to install ring portion 401, handle portion 402, cap assembly 403 and bolt 404 as the main body formation.It is the endless member of metallic plate system that ring portion 401 is installed, and controls the outer peripheral face of the housing 20 of main part 110 from the outside.The handle portion 402 of controlling for the user constitutes and can spin together with bolt 404.Cap assembly 403 is fixed in handle portion 402, keeps installing the side of ring portion 401.The front side of hammer drill 100 inserted ring portion 401 is installed, and make handle portion 402 around the major axis rotation of handle portion 402, thereby by the screwing of handle portion 402 and bolt 404, ring portion 401 and cap assembly 403 will be installed closely be linked to handle portion 402.Housing 20 is fixed in ring portion 401 is installed thus, and side grip 400 is installed in hammer drill 100.Among Fig. 1, the long axis direction of side grip 400 is consistent with the above-below direction of hammer drill 100, but by make side grip 400 with respect to housing 20 around the rotation of the major axis of drill bit 200, thereby can go up installation side handle 400 in any direction.
At the sidepiece of cap assembly 403, further be formed with for the bar installation portion 405 that aftermentioned stopper-rod 1 is installed.Dispose through hole 406 at bar installation portion 405, keep pawl 407 and force application spring 408.Through hole 406 is when side grip 400 is installed to hammer drill 100, the hole consistent with the long axis direction of drill bit 200.Keep pawl 407 can be disposed at movably at above-below direction the side of through hole 406.Force application spring 408 keeps pawl 407 to be biased spring 408 towards the central part application of force of through hole 406 to configure with the mode that keeps pawl 407 to be connected.Wherein, bar installation portion 405 is enforcement configuration examples corresponding with " installation portion " of the present utility model.
The hammer drill 100 that as above consists of, when user's operating trigger 31, external power source can be by power line 32 to motor 50 power supplies, and motor 50 is driven.The rotation of motor 50 output after being transmitted mechanism 70 and suitably slowing down, is delivered to the drill bit 200 that is kept by cutter holder 10, makes drill bit 200 produce revolving forces.By this revolving force, implement machined material is carried out the boring action of perforate processing.On the other hand, the rotation of motor 50 output passive movement switching mechanism 60 is converted to the motion on the fore-and-aft direction of hammer drill, and is delivered to piston 65.Piston 65 is at the front and back upward sliding, so that the air in the air chamber 83 plays a role as air spring, ram 81 is slided.And then ram 81 and 82 collisions of impact bolt, this impulsive force is delivered to drill bit 200, and drill bit 200 produces to the impact force of the fore-and-aft direction of hammer drill 100.Utilize this impact force to implement to process the hammering action of machined material.That is, under drill bit 200 is pressed against state on the machined material, make hammer drill 100 implement boring action and hammering action, machined material is carried out perforate processing.In addition, add man-hour machined material is carried out perforate, can not implement the hammering action by the not shown change-over switch of operation, only carry out perforate processing with the boring action.
At this moment, the dust that the processing machined material produces is by dust gathering arrester 302 controls of dust, and the suction device dust suction by being connected with dust collect plant 300.Dust gathering arrester 302 constitutes and can freely stretch on accordion-like ground, and along with drill bit 200 injection machined materials, dust gathering arrester 302 shrinks with the machined material butt.
Implement perforate at machined material and add man-hour, need precision to manage well the perforate degree of depth.For this reason, for example, can be by Direct Mark mark etc. on drill bit 200, the user confirms the mark position, thereby manages the perforate degree of depth in the mode of the injection amount of range estimation drill bit 200 in machined material.But, being equipped with in the situation of dust gathering arrester 302 of the complete cycle that covers drill bit 200, the user can't visual mark at drill bit 200 marks.For this reason, in the present embodiment hammer drill 100 is installed stopper-rod 1, this stopper-rod 1 restriction drill bit 200 is invaded the degree of depth of machined material to be no more than the perforate degree of depth of regulation.The perforate degree of depth of thus can precision managing well machined material.
With reference to Fig. 4 to Fig. 7 this stopper-rod 1 is described.As shown in Figure 4, stopper-rod 1 is made of mobile jib 2 and 3 two bar component parts of extension rod.This stopper-rod 1 is the enforcement configuration example corresponding with " course setter " of the present utility model, and mobile jib 2 and extension rod 3 these two bar component parts are enforcement configuration examples corresponding with " course setter component parts " of the present utility model.
As shown in Figure 5, mobile jib 2 is the metal material bar-like member of hexagonal shape for section.Side at the long axis direction of mobile jib 2 has a plurality of slots 4 that form in the direction with the long axis direction quadrature.In addition, the leading section at mobile jib 2 has the recess 5 that forms around circumferential complete cycle.This recess 5 is enforcement configuration examples corresponding with " engaging recessed part " of the present utility model.
As shown in Figure 6, the central part section of extension rod 3 is circular, and this extension rod 3 is the resinous bar-like members that have from central part to 4 roots radially outstanding and that extend at long axis direction.Be provided with the mobile jib fitting portion 6 chimeric with mobile jib 2 at an end of extension rod 3.Mobile jib fitting portion 6 has embedded hole 7, steel ball 8 and leaf spring 9.Embedded hole 7 is surrounded by the wall that forms mobile jib fitting portion 6 and consists of, and is an end opening and the hole of extending to long axis direction.In addition, on long axis direction with the opening opposition side, radially extend ground and be provided with for being communicated with the outside intercommunicating pore 7 ' of embedded hole 7 with the outside.It is outstanding along the radially center from the inwall of embedded hole 7 to embedded hole 7 of extension rod 3 that steel ball 8 is configured to its part, and can move diametrically.The mode in the outside of the part that leaf spring 9 is configured with the circumferential encirclement steel ball 8 along extension rod 3 configures.Leaf spring 9 to the inside of embedded hole 7 to steel ball 8 application of forces.This mobile jib fitting portion 6 is enforcement configuration examples corresponding with " fitting portion " of the present utility model, and embedded hole 7 is enforcement configuration examples corresponding with " embedded hole section " of the present utility model, and leaf spring 9 is enforcement configuration examples corresponding with " force application part " of the present utility model.In addition, steel ball 8 is the enforcement configuration example corresponding with " being arranged to from the outstanding protuberance of the wall that forms embedded hole section " of the present utility model from the outstanding part of the inwall of embedded hole 7.
As mentioned above, stopper-rod 1 constitutes and can be set as different lengths.That is, stopper-rod 1 can adopt two kinds of forms, and the one, the short form of total length of the stopper-rod 1 of mobile jib 2 is only arranged, the 2nd, connect the complete long form of the stopper-rod 1 that mobile jib 2 and extension rod 3 form at long axis direction.
Can with the optional position on the long axis direction that is provided with slot 4 of the mobile jib 2 of this stopper-rod 1, be installed on the bar installation portion 405 of side grip 400.Particularly, under the state above moving to, make mobile jib 2 be inserted through the inserting hole 406 of bar installation portion 405 making engaging pawl 407 overcome the active force of force application spring 408.Afterwards, make engaging pawl 407 return to the origin-location, engage with slot 4, and by the active force of force application spring 408 mobile jib 2 is fixed in bar installation portion 405.At this moment, because slot 4 is in the side of mobile jib 2 and be formed with a plurality ofly with the direction of long axis direction quadrature, so can select arbitrarily slot 4, makes it and engages pawl 407 and engage, relative bar installation portion 405 is installed the optional position on the long axis direction of mobile jib 2.Consequently, the installation site of stopper-rod 1 on long axis direction is variable.And by side grip 400 is installed on hammer drill 100, by side grip 400 stopper-rod 1 is installed on hammer drill 100.Thus, stopper-rod 1 mode of extending with the long axis direction at drill bit 200 is installed on hammer drill 100.
Secondly, set forth the relation of stopper-rod 1 and drill bit 200.As shown in Figure 1 and Figure 2, when short drill bit 200 is installed to hammer drill 100, will only there be the stopper-rod 1 of mobile jib 2 to be installed on hammer drill 100.At this moment, can pass through the installation site of the long axis direction of change stopper-rod 1, change the distance of the front end of the front end of stopper-rod 1 and drill bit 200, in other words, can change from the installation site to the stopper-rod effective length of 1 front end, thereby can be set in the perforate degree of depth on the machined material.And then carry out perforate and add man-hour drill bit 200 being pressed into machined material, drill bit 200 is invaded machined materials, and front end and the machined material butt of the stopper-rod 1 by being installed in hammer drill 100 can limit further intrusion machined materials of drill bit 200.Thereby can form at machined material the hole of the degree of depth that sets, can precision manage well the perforate degree of depth.
On the other hand, such as Fig. 8, shown in Figure 9, when long drill bit 200 was installed to hammer drill 100, the long stopper-rod 1 of total length that connection mobile jib 2 and extension rod 3 are formed was installed on hammer drill 100.Use long drill bit 200 particularly useful in following situation, for example hammer drill 100 main bodys can't be close the zone, namely, in the situation that relies on zone that stub drill 200 can't perforate to carry out the situation of perforate, carry out perforate users such as ceilings to the zone of the distance of machined material etc.Even if use long drill bit 200, also need when using stub drill 200 similarly precision to manage well the perforate degree of depth.In the present embodiment, because in the situation that long drill bit is installed, the stopper-rod 1 that total length is long is installed on hammer drill 100, therefore can with use stub drill 200 to carry out perforate to add the man-hour same accuracy and manage well the perforate degree of depth.
In addition, when hammer drill 100 is installed long drill bit 200, also identical when stub drill 200 is installed, can be by the installation site on the long axis direction that changes stopper-rod 1, change the distance of the front end of the front end of stopper-rod 1 and drill bit 200, the i.e. effective length of 1 front end from the installation site to the stopper-rod.And, when long drill bit 200 is installed on hammer drill 100, can also according to the perforate degree of depth, will only there be the short stopper-rod 1 of mobile jib 2 to be installed on hammer drill 100.
According to above present embodiment, stopper-rod 1 can be set as different lengths according to the length kind that is installed on the drill bit 200 of hammer drill 100.That is, when changing the total length of stopper-rod 1, change the installation site on the major axis mode of stopper-rod 1, thereby can change from the installation site to the stopper-rod effective length of 1 front end, can be set in thus the perforate degree of depth on the machined material.Therefore, for the drill bit 200 of any length, can both be according to the length kind of drill bit 200, precision is managed the perforate degree of depth well.
According to present embodiment, can change the total length of stopper-rod 1 only to make mobile jib 2 and extension rod 3 chimeric simple formations.
Therefore in addition, according to present embodiment, be provided with the outside intercommunicating pore 7 ' that is communicated with the outside on the embedded hole 7, mobile jib 2 inserted, when extracting, can will retain in dust the embedded hole 7 etc. from outer connecting port 7 ' and be discharged to the outside with respect to embedded hole 7.And then, inserting, when extracting mobile jib 2, the air of embedded hole 7 can be discharged into the outside with respect to embedded hole 7, perhaps make air flow into embedded hole 7 from the outside, thus can be successfully that mobile jib 2 and extension rod 3 is chimeric.
In above present embodiment, be formed with mobile jib fitting portion 6 at extension rod 3, but also can form for the chimeric fitting portion of extension rod at mobile jib 2.In addition, no matter be any situation, the embedded hole 7 that is formed at fitting portion all be not limited to complete cycle by wall surround poroid, also can be local flute profile of not surrounded by wall.In addition, can utilize the elasticity of resin of mobile jib fitting portion 6 to steel ball 8 application of forces, can not arrange leaf spring 9 this moment.In addition, the circumferential complete cycle that recess 5 spreads all over mobile jib 2 forms, but also can only be arranged at the circumferential part that engages with steel ball 8.
In the present embodiment, part with steel ball 8 has upwards configured steel ball 8 from the inwall of embedded hole 7 to the outstanding mode in the center of embedded hole 7 in the footpath of extension rod 3, but be not limited to this, also can not configure steel ball 8 and leaf spring 9, but the inside that possesses embedded hole 7 is to the outstanding part in the center of embedded hole 7.Should outstanding part can constitute, be formed by resin, thereby utilize the elasticity of resin, engage with recess 5.So, even constitute the part of the projection with resin, also can prevent mobile jib 2 and extension rod 3 disengagements.In addition, this outstanding part is not limited to resin material, can form by having flexible material.Should outstanding part be the enforcement configuration example corresponding with " being arranged to from the outstanding protuberance of the wall that forms embedded hole section " of the present utility model.
Secondly, the variation that just applies various changes in present embodiment describes.But the part with formation identical with present embodiment marks same-sign, and suitably the description thereof will be omitted.
That Figure 10 ~ Figure 12 represents is the stopper-rod 1a of variation.Figure 10 is the figure of the stopper-rod 1a of the shorter form of expression total length, and Figure 11 is the figure of the stopper-rod 1a of long form of expression total length.In addition, the formation beyond the stopper-rod 1a is identical with present embodiment.
Stopper-rod 1a is made of mobile jib 2a and these two bar component parts of extension rod 3a.This stopper-rod 1a is the enforcement configuration example corresponding with " course setter " of the present utility model, and these two bar component parts of mobile jib 2a, extension rod 3a are enforcement configuration examples corresponding with " course setter component parts " of the present utility model.
Its cross section of mobile jib 2a is circular, and is metal-made, is the bar-like member that has hollow space 7a in inside.The side of mobile jib 2a is formed with a plurality of slot 4a that engage pawl 407 engagings with being formed at bar installation portion 405.In addition, the leading section at mobile jib 2a is provided with extension rod fitting portion 6a.
As shown in figure 12, dispose steel ball 8a and slide unit 9a at extension rod fitting portion 6a.Steel ball 8a is configured to upwards can move in the footpath of mobile jib 2a.Slide unit 9a is configured in the outside of the steel ball 8a that mobile jib 2a directly makes progress, possesses groove and force application spring.Slide unit 9a is biased spring and is held towards the side application of force that extension rod 3a gave prominence to of the long axis direction of mobile jib 2a.And then slide unit 9a constitutes, and groove engages with steel ball 8a when slide unit 9a is slided.
Mutually slide for mobile jib 2a and extension rod 3a, the active force that makes slide unit 9a overcome force application spring slides, and the groove of slide unit 9a is engaged with steel ball 8a, thereby mobile jib 2a and extension rod 3a are slided mutually.In addition, when steel ball 8a is engaged to the recess 5a of optional position of extension rod 3a, make slide unit 9a return to the origin-location, the movement that restriction steel ball 8a makes progress in the footpath of mobile jib 2a, thereby the slip of restriction mobile jib 2a and extension rod 3a.Thus, can prevent that extension rod 3a from throwing off from mobile jib 2a, and can in recess 5a and the position that steel ball 8a engages, make stopper-rod 1a keep its length.
As mentioned above, mobile jib 2a and extension rod 3a constitute and can mutually slide.At this moment, engage with among the three recess 5a of place each by making steel ball 8a, syllogic ground changes the total length of stopper-rod 1a elastically.This mode that these two bar component parts are slided mutually is the enforcement configuration example corresponding with " telescopic " of the present utility model.
This mobile jib 2a is inserted through the through hole 406 of bar installation portion 405 with respect to the bar installation portion 405 of side grip 400, makes slot 4a and engage pawl 407 engagings, the active force by force application spring 408 is fixed in bar installation portion 405 with this stopper-rod 1a thus., be formed with a plurality of slots in the side of mobile jib 2a herein, therefore select any slot 4a, make it and engage pawl 407 engagings, can be installed on respect to bar installation portion 405 thus the optional position of the long axis direction of mobile jib 2a.Consequently, the installation site on the long axis direction of mobile jib 1a is variable.
According to the formation of above-mentioned variation, stopper-rod 1a can be set as different lengths according to the length kind that is installed in the drill bit 200 of hammer drill 100.Namely, for stopper-rod 1a, by changing the recess 5a that is used for engaging steel ball 8a, change the total length of stopper-rod 1a, and change the installation site on the long axis direction of stopper-rod 1a, thereby can change from the installation site to the effective length of the front end of stopper-rod 1a.Thus, can set the perforate degree of depth on the machined material.Therefore, for the drill bit 200 of arbitrary length, can both manage well the perforate degree of depth according to the length kind precision of drill bit 200.
In above-mentioned, stopper-rod 1,1a are after being installed on side grip 400, are installed in hammer drill 100 via side grip 400, but also can be the main parts 110 that the installation portion of stopper-rod 1,1a is formed at hammer drill 100, and stopper-rod 1,1a directly are installed on hammer drill 100.
In addition, above-mentioned in, stopper-rod 1,1a are made of two course setter component parts that is mobile jib 2,2a and extension rod 3,3a, but can also be that three above course setter component parts are connected, and change the formation of the total length of stopper-rod 1,1a.
In addition, above-mentioned in, the recess 5, the 5a that engage with steel ball 8,8a can be set.At this moment, by the force application part to steel ball 8, the 8a application of force is set, thereby can prevent that extension rod 3,3a from throwing off from mobile jib 2,2a.
In addition, above-mentioned in, configure motor 50 with the rotating shaft 51 of motor 50 in the upwardly extending mode in the side that the major axis with drill bit 200 intersects, and the utility model also can be applicable to rotating shaft 51 hammer drill parallel with the major axis of drill bit 200 100.In addition, the utility model also can be applicable to not implement the hammering action but only implement the power tool of bore operation.
Above, for the formation of a plurality of course setter component parts of mutual dismounting or telescopic formation course setter is illustrated, except above-mentioned points, can also be to combine by the end of pin with a plurality of course setter component parts, by making bound fraction overlapped, can make course setter be set as different lengths.
In view of the purport of above-mentioned utility model, can consist of following mode.
(mode 1)
" a kind of course setter; be installed in the instrument screwdriver bit that different lengths optionally is installed; implement the power tool of perforate operation; restriction is installed on the described instrument screwdriver bit of described power tool and invades more than the perforate degree of depth of machined material regulation; it is characterized in that; the length kind according to the described instrument screwdriver bit that is installed in described power tool can change apart from the distance of the front end of this instrument screwdriver bit.”
Claims (7)
1. course setter, this course setter is installed in the power tool that the instrument screwdriver bit that different lengths optionally is installed is implemented the perforate operation, and the described instrument screwdriver bit that is installed in described power tool is limited, this instrument screwdriver bit is not invaded more than the perforate degree of depth of machined material regulation, it is characterized in that
Described course setter can according to the length kind of the described instrument screwdriver bit that is installed on described power tool, be set different lengths for to be installed on described power tool along the extended mode of the long axis direction of described instrument screwdriver bit.
2. course setter according to claim 1 is characterized in that,
Described course setter is made of a plurality of course setter component parts, by the described a plurality of course setter component parts of mutual dismounting, the length setting of described course setter can be become different lengths.
3. course setter according to claim 2 is characterized in that,
The course setter component parts of a side in two described course setter component parts of adjacency has the fitting portion chimeric with the opposing party's course setter component parts,
Described fitting portion has: embedded hole section, and this embedded hole section and described the opposing party's course setter component parts is chimeric; Protuberance, this protuberance are arranged to from forming the wall of described embedded hole section, towards the long axis direction with a described side's course setter component parts intersect crisscross outstanding; And force application part, this force application part described crisscross on to the inboard application of force of described protuberance to described embedded hole section,
Described the opposing party's course setter component parts has engaging recessed part, and this engaging recessed part engages with described protuberance when this opposing party's course setter component parts is fitted to described embedded hole section.
4. course setter according to claim 1 is characterized in that,
Described course setter is made of a plurality of slide units of mutual slip, can set the different lengths of described course setter for telescopicly.
5. a power tool is characterized in that,
Has the described course setter of any one in the claim 1 to 4.
6. power tool claimed in claim 5 is characterized in that,
The installation portion of described course setter is being installed, can be being changed the installation site on the described long axis direction of described course setter.
7. according to claim 5 or 6 described power tools, it is characterized in that,
Be equipped with the dust-collection element that control of dust is used, this dust-collection element covers the circumferential complete cycle on the described long axis direction of described instrument screwdriver bit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-180689 | 2011-08-22 | ||
| JP2011180689A JP5743804B2 (en) | 2011-08-22 | 2011-08-22 | Stopper and work tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202701451U true CN202701451U (en) | 2013-01-30 |
Family
ID=47581791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220344275 Expired - Lifetime CN202701451U (en) | 2011-08-22 | 2012-07-16 | Fixed distance device and operation tool |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5743804B2 (en) |
| CN (1) | CN202701451U (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4281949A (en) * | 1979-08-06 | 1981-08-04 | Bugarin Tony L | Combination depth gauge and level for a drill |
| DE3632377A1 (en) * | 1986-09-24 | 1988-03-31 | Bosch Gmbh Robert | DEPTH STOP |
| JPH0470474U (en) * | 1990-10-29 | 1992-06-22 | ||
| JP3726437B2 (en) * | 1997-08-22 | 2005-12-14 | 松下電工株式会社 | Drilling tool |
| DE10029134A1 (en) * | 2000-06-14 | 2001-12-20 | Hilti Ag | Depth stop for hand tools |
| JP2004216509A (en) * | 2003-01-15 | 2004-08-05 | Kaden Chin | Screwing rod |
| JP2008207258A (en) * | 2007-02-23 | 2008-09-11 | Hitachi Koki Co Ltd | Drilling tool |
-
2011
- 2011-08-22 JP JP2011180689A patent/JP5743804B2/en active Active
-
2012
- 2012-07-16 CN CN 201220344275 patent/CN202701451U/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2013043226A (en) | 2013-03-04 |
| JP5743804B2 (en) | 2015-07-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130130 |
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| CX01 | Expiry of patent term |