CN204123366U - Electric tool - Google Patents

Abstract

The utility model provides a kind of electric tool improved the start of switch.Electric tool has: the tool body of collecting motor; The hand handle be connected with tool body; Have in order to can the opening of CD-ROM drive motor and stop carrying out state switching between the closed condition of motor and on the axle specified the switch of the actuator of movement point-blank; Be arranged at the switching manipulation parts that handle also can carry out rotating operation between initial position and the operating position separating predetermined distance from this initial position; And to be located between switching manipulation parts and actuator and can the movable member of movement point-blank on the axle specified.Above-mentioned electric tool is configured to: from initial position to operating position rotating operation during switching manipulation parts, by switching manipulation parts pressing movable member, thus movable member is made to move point-blank on the axle of regulation and the actuator of switch is moved point-blank.

Description

Electric tool

Technical field

The utility model relates to the electric tool carrying out processing operation by motor driving front end tool.

Background technology

Japanese Unexamined Patent Publication 2004-330377 publication shows the electric hammer possessing and carried out a pair handle held by the right-hand man of operating personnel respectively.In this electric hammer, possess trigger at a handle, this trigger operates the switch of motor driving as switching manipulation parts.Trigger is set to carry out rotating operation centered by the fulcrum of regulation.And this electric hammer is configured to operating personnel by making trigger rotate on the finger holding handle, thus switch switches to connection (ON) state from (OFF) state of closedown carrys out CD-ROM drive motor.

Patent document 1: Japanese Unexamined Patent Publication 2004-330377 publication

As described above, when being formed as utilizing the trigger of rotational motion to carry out the structure of console switch, trigger is collided with it in an inclined manner relative to switch, thus likely can damage the smoothness of switch start, still leaves some room for improvement in above-mentioned.

Utility model content

The utility model produces in view of the foregoing, and its object is to provides the electric tool improved the start of switch.

In order to realize above-mentioned problem, the preferred embodiment of the electric tool involved by the utility model and form and drive front end tool to carry out processing the electric tool of operation by motor.Electric tool has: tool body, and it accommodates motor; Hand handle, it is arranged at tool body; Switch, consist of and and can stop switching between the closed condition of motor in the opening of CD-ROM drive motor, and there is the actuator that can carry out movement for carrying out switching between above-mentioned opening and closed condition on the axle specified in a linear fashion; Switching manipulation parts, it can be arranged at hand handle rotationally centered by the fulcrum of regulation, and between initial position and the operating position separating predetermined distance from this initial position, can carry out rotating operation by operating personnel; And movable member, it is located between switching manipulation parts and the actuator of switch, and can move in a linear fashion on the axle of regulation.And, above-mentioned electric tool is configured to when having carried out rotating operation from initial position to operating position to switch functional unit, these switching manipulation parts are utilized to press movable member, this movable member is moved in a linear fashion on the axle of regulation, thus actuator is moved in the mode making switch and switch to opening from closed condition.

According to the utility model, be formed as following formation, that is: movable member linearly carries out moving thus the actuator of switch is moved on the axle of regulation.Therefore, movable member acts on the actuator of switch in a linear fashion, thus makes the start of switch become smooth and easy.In this case, can be configured on the axle of regulation, the end face of movable member be abutted mutually with the end face of the actuator of switch, movable member and actuator also can be configured to link.When the structure that the end face of movable member abuts mutually with the end face of the actuator of switch if be formed as, then can avoid the friction between the end face of movable member and the end face of actuator, thus reduce wearing and tearing.

The further mode of the electric tool involved by the utility model, hand is being formed as strip.The actuator of switch is configured at the inside of hand handle.The axis that actuator carries out the axle of the regulation of movement is consistent with the long axis direction of hand handle.

According to which, make the actuator of switch along the rational configuration of the long axis direction movement of this handle in the internal build of handle.

In addition, the further mode of the electric tool involved by the utility model, switching manipulation parts are configured to, and carry out rotating operation relative to hand centered by the fulcrum of regulation along on the direction that the axis of the axle with regulation is intersected to these switching manipulation parts.

Owing to being configured to according to which, on the direction that the axis of the axle with regulation is intersected, rotating operation is carried out to switch functional unit, so can carry out console switch functional unit by the finger holding hand handle in the mode holding switching manipulation parts and hand handle together, therefore operability is excellent.

In addition, the further mode of the electric tool involved by the utility model, hand is having the base portion be connected with tool body and the handle part held for operating personnel.And switchgear distribution is in base portion.In this case, the fulcrum preferably forming the regulation at the center of the rotational motion of switching manipulation parts is arranged at base portion.

According to which, the position of the fulcrum forming the regulation at the center of the rotational motion of switching manipulation parts can be set as near switch.Thus, at hand when being formed as strip, the long axis direction length of this hand handle can be shortened.

In addition, the further mode of the electric tool involved by the utility model, switching manipulation parts have: can carry out by the finger of operating personnel the Part I that operates and relative to movable member the mode of relative movement can carry out engaging and to make the Part II of this movable member movement.And, compare the distance of fulcrum to the position engaged with movable member of Part II from regulation from the distance of fulcrum to the position held by finger of Part I of the regulation at the center of the rotational motion of formation switching manipulation parts.

Due to according to which, the distance of fulcrum to the position having finger to hold of Part I of the regulation at the center of the rotational motion from formation switching manipulation parts is set as, than the distance of fulcrum to the position engaged with movable member of Part II from regulation, so Part I can be operated by less power.

In addition, the further mode of the electric tool involved by the utility model, electric tool is configured to the hammer tool possessing the long axis direction linearly operating along front end tool thus the strike part to this front end tool applying hitting power.And, except hand except, electric tool also has second-hand's handle, hand with second-hand to configure across the mode of the axis extended along the long axis direction of front end tool, and to configure in the mode that the direction intersected along the long axis direction with front end tool extends.

According to which, operating personnel holds hand handle and second-hand's handle respectively by right-hand man, thus can make front end tool linearly operating to carry out the operation that specifies.

According to the utility model, the electric tool that the start of switch is improved can be provided.

Accompanying drawing explanation

Fig. 1 is the positive view of the hammer tool involved by present embodiment.

Fig. 2 is the partial enlarged drawing of Fig. 1.

Fig. 3 is the sectional view of the structure representing switch portion, and represents the non-operating state of trigger.

Fig. 4 is the sectional view of the structure representing switch portion, and represents the mode of operation of trigger.

Fig. 5 is the sectional view of the A-A line along Fig. 3.

Fig. 6 is the figure observing the handle be installed on before the housing of outside from base portion side.

Fig. 7 illustrates the figure of trigger relative to the locking structure of switch guiding piece.

Fig. 8 is the stereogram representing electric material shell and strengthening part, and represents the state before strengthening part installation.

Fig. 9 is the stereogram representing electric material shell and strengthening part, and represents the state after strengthening part installation.

The explanation of Reference numeral:

100 ... electric hammer (electric tool); 101 ... main part (tool body); 103 ... body shell; 104 ... cylinder portion; 105 ... outside housing; 106 ... switch-box; 107 ... switch cover; 108 ... screw; 110 ... electro-motor (motor); 111 ... motor drive shaft; 113 ... gear reduction unit; 119 ... tup (front end tool); 120 ... motion changing mechanism; 121 ... crank axle; 123 ... connecting rod; 125 ... piston; 131 ... tool holder; 140 ... hit component; 141 ... cylinder body; 141a ... air chamber; 143 ... ram; 145 ... impact bolt; 500A ... a handle (hand handle); 500B ... another handle (second-hand's handle); 501 ... handle portion (handle part); 501a ... hollow bulb; 501b ... fastener; 501c ... inclined plane; 502 ... opening; 503 ... base portion (base portion); 505 ... rib; 505a ... recess; 507 ... rail portion; 509 ... elastomer; 509a ... front end face; 510 ... electric switch (switch); 511 ... switch main body portion; 513 ... plunger (actuator); 520 ... trigger (switching manipulation parts); 521 ... action bars portion (Part I); 521a ... operating portion; 521b ... installation portion; 521c ... stop; 523 ... guide Actuator Division (Part II); 525 ... axle portion (rotating fulcrum); 530 ... switch guiding piece (movable member); 531 ... engaging recessed part; 531a ... jut; 533 ... abutting part; 540 ... electric material shell; 541 ... controller; 543 ... strengthening part; 545 ... screw.

Detailed description of the invention

Below, with reference to Fig. 1 ~ Fig. 9, embodiment of the present utility model is described in detail.Present embodiment is described using electric hammer as electric tool example.As shown in Figure 1, electric hammer 100 involved by present embodiment is following hammer tool: be provided with tup 119 in the front end area of main part 101, and make the tup 119 of installation carry out strike action along long axis direction, thus engraving tool cutter processing operation is carried out to work piece such as concrete.Tup 119 is installed on main part 101 via the tool holder 131 of tubular in the mode that can load and unload.In the tool heads patchhole of tup 119 insertion tool folder 131, be retained as the in relative rotation state of restriction to circumference.Present embodiment is that this tup 119 corresponds to " front end tool " in the utility model and main part 101 corresponds to the enforcement configuration example of " tool body " in the utility model.

Main part 101 is formed based on such as lower part: the body shell 103 of collecting electro-motor 110 and motion changing mechanism 120, cylinder portion 104 that a part for component 140 and tool holder 131 is hit in collecting and the outside housing 105 configured in the mode of the entirety from outer side covers body shell 103.In addition, body shell 103 and cylinder portion 104 are aluminum equally, and about the long axis direction of tup 119, make being bonded with each other with the end face of tup 119 opposite side of the end face of the tup side of body shell 103 and cylinder portion 104.About the long axis direction of tup 119, be configured with handle for operating a pair handle 500A, 500B carrying out carving and cut a hole the electric hammer 100 processing operation at main part 101 with tup 119 opposite side.

In addition, the electric hammer 100 involved by present embodiment is the large-scale hammers roughly with 30kg weight, is that operating personnel holds handle 500A, 500B and processes operation to make tup 119 state down carry out engraving tool cutter substantially.Therefore, in the present embodiment, for convenience of explanation, about the long axis direction of tup 119, namely about the long axis direction of main part 101, tup 119 side is called downside, its opposition side is called upside.

Electro-motor 110 is by carrying out the structure driven from the power supply exchanging (AC) power supply.Electro-motor 110 is configured to the Axis Cross that its motor drive shaft 111 extends relative to the long axis direction along tup 119.The basis that being rotated in of electro-motor 110 is transformed to rectilinear motion by motion changing mechanism 120 is passed to and hits component 140, and hit tup 119 via this strike component 140 along long axis direction (the lower direction in Fig. 1).

Motion changing mechanism 120 is consisted of crank mechanism, and this crank mechanism comprises crank axle 121, the connecting rod 123 and piston 125 etc. of the below being configured at electro-motor 110.Motion changing mechanism 120 is driven by electro-motor 110 via the gear reduction unit 113 be made up of multiple gear.Piston 125 forms the actuator driving and hit component 140.Piston 125 is formed as to slide along the long axis direction of tup 119 in cylinder body 141.In addition, crank axle 121 is configured to parallel with the motor drive shaft 111 of electro-motor 110.

Hit component 140 to be formed based on the ram 143 as strike part and the impact bolt 145 as middleware.Ram 143 is configured to slide in cylinder body 141.Impact bolt 145 to be configured to slide in tool holder 131, and the kinergety of ram 143 is passed to tup 119.Cylinder body 141 is configured to same heart shaped above tool holder 131, and has the air chamber 141a separated by piston 125 and ram 143.The air spring of the air chamber 141a that ram 143 produces via the sliding action along with piston 125 and being driven, thus collide with impact bolt 145, and then hit tup 119 via this impact bolt 145.

Outside housing 105 is configured with at the upper side of the main part 101 of electric hammer 100 that is the outside of body shell 103.When from top view electric hammer 100, outside housing 105 is roughly in rectangle longer in the lateral direction, and when observing from side, outside housing 105 is formed as the open tubular in below.And, configure outside housing 105 in the mode of the entirety from outer side covers body shell 103.Outside housing 105 is configured to via the multiple compression helical springs (omitting diagram) as elastomeric element and links with body shell 103, and can along the long axis direction relative movement of tup 119.

The lateral surface of side body 105 is configured with a pair handle 500A, 500B outside, and this passes through to hold respectively for the right-hand man operating electric hammer 100 to handle 500A, 500B.Handle 500A, 500B are configured in left and right in the mode in the assigned position of the axis extended along the long axis direction of tup 119 across this axis, are specifically configured to about axis symmetrical.

Handle 500A, 500B are the cylinder-like parts of the plastic strip in inside with hollow bulb, and extend along the direction that the long axis direction with tup 119 intersects.Handle 500A, 500B have the drum held for operating personnel handle portion 501 about its bearing of trend and the base portion 503 be connected with this handle portion 501.Base portion 503 is formed as the diameter tubular larger than handle portion 501, and the opposition side being connected side with handle portion 501 is open.Base portion 503 is configured to be had from this coupling part towards the taper region that open sides diameter expands gradually being connected side with handle portion 501, and is roughly formed as quadrangle about the section shape of the cross facet intersected with its axis direction of this base portion 503.And base portion 503 is linked with fixing shape by the outer surface of multiple screw (omit diagram) with outside housing 105, and handle portion 501 left and right directions that intersects along the long axis direction with tup 119 is formed as free end with horizontal extension.That is, handle 500A, 500B links for cantilever beam-like relative to outside housing 105.Present embodiment is that handle portion 501 corresponds to " handle part " in the utility model and base portion 503 corresponds to the enforcement configuration example of " base portion " in the utility model.

As shown in Fig. 2 ~ Fig. 5, a handle 500A in a pair handle 500A, 500B is provided with the electric switch 510 of driving for operating electro-motor 110 and stopping and the trigger 520 of operation electric switch 510.Electric switch 510 is formed based on switch main body portion 511 and plunger 513.Present embodiment is that this electric switch 510 corresponds to " switch " in the utility model and plunger 513 corresponds to the enforcement configuration example of " actuator " in the utility model.Plunger 513 is contained in switch main body portion 511, and protruding outside towards switch main body portion 511 of a part.The opening/closing portion (omitting diagram) be made up of travelling contact and fixed contact is built-in with in switch main body portion 511.Switch between the opening that opening/closing portion can utilize plunger 513 to contact with fixed contact at travelling contact and the closed condition that travelling contact leaves from fixed contact.Electric switch 510 is configured to by the opening/closing portion in switch main body portion 511 being switched to opening thus driving electro-motor 110, by the opening/closing portion in switch main body portion 511 being switched to closed condition thus making electro-motor 110 stop.In addition, another handle 500B in a pair handle 500A, 500B is not equipped with electric switch 510 and trigger 520.Present embodiment is that a handle 500A in a pair handle 500A, 500B corresponds to " hand " in the utility model and another handle 500B corresponds to the enforcement configuration example of " second-hand " in the utility model.

Plunger 513 is supported in switch main body portion 511 and can moves along its long axis direction, and an end of its long axis direction is with protruding outside to switch main body portion 511 of specific length.Plunger 513 is configured to: when its direction to proximity switch main part 511 (right of Fig. 3) is mobile, travelling contact is made to contact with fixed contact thus be formed as opening, when it is mobile to the direction (left of Fig. 3) leaving switch main body portion, travelling contact is made to leave from fixed contact thus be formed as closed condition.Namely, plunger 513 is configured to: the opening/closing portion in switch main body portion 511 can be formed as moving between the enable possition of opening and the closed position being formed as closed condition by it, and the built-in spring (omitting diagram) be arranged at ordinary times in switch main body portion 511 exerts a force towards closed position and holds it in this closed position.

As shown in Figure 3, the electric switch 510 formed as described above is configured to about the long axis direction of handle 500A; Plunger 513 is given prominence to towards the front of handle 500A, and plunger 513 is positioned at the base portion 503 of handle 500A.In addition, electric switch 510 configures to make the long axis direction of plunger 513 mode consistent with the long axis direction of handle 500A.In addition, switch main body portion 511 is contained in the switch-box 106 being formed in outside housing 105, and with the state of this collecting by being fixed on the switch cover 107 of this switch-box 106 with screw 108 (with reference to Fig. 5) and firmly being fixed.

As shown in Figure 3, trigger 520 and switch guiding piece 530 is configured with at a handle 500A.Trigger 520 is formed based on such as lower part: the long axis direction along handle 500A extends and and can extend along the direction that the bearing of trend with action bars portion 521 intersects and make the guiding Actuator Division 523 of switch guiding piece 530 start by the action bars portion 521 of the finger manipulation of operating personnel.Present embodiment is the enforcement configuration example that trigger 520 corresponds to " switching manipulation parts " in the utility model.

As shown in Figure 3, in the upper surface side of the handle portion 501 of a handle 500A, be formed with the roughly rectangular opening 502 be communicated with the hollow bulb 501a of this handle portion 501.This opening 502 is set to the action bars portion 521 for configuration flip-flops 520, and is formed as rectangle longer on the long axis direction of handle 500A.Action bars portion 521 is formed as the open cross section U-shaped in downside throughout the total length of its bearing of trend.Action bars portion 521 has: operating portion 521a, its be configured at handle portion 501 opening 502 and by the finger manipulation of operating personnel; And installation portion 521b, it is connected with this operating portion 521a and extends.The installation portion 521b in action bars portion 521 is configured at the upper surface side of the inner side of the base portion 503 of handle 500A.As shown in Figure 6, be provided with the axle portion 525 of short cylindrical shape in the two sides of the extended end portion of installation portion 521b, the horizontal direction that this axle portion 525 intersects along the long axis direction with handle 500A is given prominence to outwardly.In addition, the guiding Actuator Division 523 engaged with switch guiding piece 530 is provided integrally with at installation portion 521b.As shown in Figure 6, guide Actuator Division 523 be formed as respectively from the biside plate of the formation U-shape of installation portion 521b towards switch guiding piece 530 with the two forked protruding part parts that specific length is given prominence to.Present embodiment is that action bars portion 521 to correspond in the utility model " Part I " and guides Actuator Division 523 to correspond to the enforcement configuration example of " Part II " in the utility model.

In the inside upper surface of the base portion 503 of a handle 500A, be provided with the side of the installation portion 521b clipping action bars portion 521 from both sides and the rib 505 of extension, be formed with the recess 505a of roughly semicircle arcuation in the end of this rib 505.And, make the axle portion 525 of installation portion 521b engage and be supported as rotating at recess 505a.That is, trigger 520 is installed as follows relative to handle 500A: can so that axle portion 525 above-below direction that to be rotating fulcrum intersect at the long axis direction with handle 500A to rotate.And, trigger 520 is when not operation, the off position (position shown in Fig. 3) that action bars portion 521 is given prominence to from the outwardly side of handle portion 501 by opening 502 is maintained at by the active force of the built-in spring of electric switch 510, when the finger by operating personnel has carried out pressing operation to action bars portion 521, the upper surface of the operating portion 521a in action bars portion 521 has rotated to the operating position (position shown in Fig. 4) of the outer surface close to handle portion 501.Present embodiment is that off position corresponds to " initial position " in the utility model and operating position corresponds to the enforcement configuration example of " operating position " in the utility model.

In addition, the front end in action bars portion 521 is provided with stop 521c, when trigger 520 rotates to operating position, is engaged by stop 521c and the fastener 501b being arranged at handle portion 501, thus trigger 520 is remained on operating position.In addition, trigger 520 is set as, from form rotating fulcrum axle portion 525 center to action bars portion 521 the position held by finger length longer than the length from the center in axle portion 525 to guiding the position engaged with switch guiding piece 530 of Actuator Division 523.Specifically, trigger 520 is set as: be roughly 3 times of length from axle portion 525 to guiding the position engaged with switch guiding piece 530 of Actuator Division 523 from the length till the position held by finger in 525 to action bars portion of axle portion 521.

As shown in Fig. 2 ~ Fig. 5, switch guiding piece 530 is contained in the hollow bulb 501a of the handle portion 501 of handle 500A.Switch guiding piece 530 is possessed as such as lower component, namely, switch guiding piece 530 is configured between trigger 520 and plunger 513 with sandwiched shape, and when trigger 520 rotates to operating position, pressed by this trigger 520 thus move in a linear fashion, making plunger 513 move in a linear fashion thus.Present embodiment is the enforcement configuration example that this switch guiding piece 530 corresponds to " movable member " in the utility model.Switch guiding piece 530 is formed as the rectangular box-shaped of the upper surface open extended with specific length along the long axis direction of handle portion 501.Switch guiding piece 530 is configured to move in a linear fashion along the long axis direction of handle portion 501, and utilizes the rail portion 507 (with reference to Fig. 5) of the ribbed formed at the inner surface of handle portion 501 to guide.Rail portion 507 is opposed in the mode clipping switch guiding piece 530, and extends along the long axis direction of handle portion 501 with linearity.

As shown in Figure 5, in the end side of the long axis direction of switch guiding piece 530, be formed with take the shape of the letter U when top view two engaging recessed parts 531 that the front of handle 500A is open.Two engaging recessed parts 531 configure in the mode separating predetermined distance on the direction that the long axis direction with switch guiding piece 530 intersects, and guide Actuator Division 523 and this two engaging recessed parts 531 to engage.And, when having carried out the rotating operation from off position to operating position to trigger 520, the guiding Actuator Division 523 that switch guiding piece 530 is configured to by abutting with the bottom surface of engaging recessed part 531 presses, thus moves in a linear fashion to the direction (right of Fig. 3, Fig. 5) of proximity switch main part 511.

Switch guiding piece 530 possesses an abutting part 533 between two engaging recessed parts 531.This abutting part 533 has the vertical guide orthogonal with the long axis direction of plunger 513, and the front end of the plunger 513 of electric switch 510 abuts relative to this vertical guide.Therefore, when switch guiding piece 530 moves to the direction of proximity switch main part 511, plunger 513 is pressed by the abutting part 533 of this switch guiding piece 530 thus moves to side, switch main body portion 511.By the built-in spring being built in switch main body portion 511, plunger 513 is exerted a force towards closed position, and plunger 513 is remained on this closed position.Therefore, under the non-operating state of trigger 520, switch guiding piece 530 is pressed by plunger 513 by the active force of the built-in spring in switch main body portion 511 thus is maintained at the position to leaving side, switch main body portion 511 (left side of Fig. 3, Fig. 5) and moving, corresponding, trigger 520 is maintained at off position.

In addition, trigger 520 and switch guiding piece 530 being assembled in the stage before the housing 105 of outside, they are assembled in handle 500A.Specifically, under the state engaged with the engaging recessed part 531 of switch guiding piece 530 the guiding Actuator Division 523 of trigger 520, assemble trigger 520 and switch guiding piece 530 in the mode inserted in the hollow bulb 501a of handle portion 501 from base portion 503 side of handle 500A.When carrying out this assembling, be not easy to make guiding Actuator Division 523 to come off from the engaging recessed part 531 of switch guiding piece 530, as shown in Figure 7, at two engaging recessed parts 531 of U-shaped, be provided with at outer inner surface hemispheric jut 531a outstanding inwardly.That is, guide Actuator Division 523 to be configured to, utilize the elastic bending of the side plate forming engaging recessed part 531 thus cross on jut 531a and engage with engaging recessed part 531.

In addition, as shown in Fig. 2 ~ Fig. 5, the surface integral of the handle portion 501 of a pair handle 500A, 500B is covered by elastomer 509.The front end face of handle portion 501 is formed as the inclined plane 501c tilted with predetermined angular relative to the vertical guide orthogonal with the long axis of this handle portion 501.The angle of inclination of inclined plane 501c is set as, the angle that the extended line along this inclined plane 501c extension intersects with the front end area of tup 119.By such setting, when the electric hammer 100 of erectility is starting point with tup 119 and topples over towards the mode on ground with the front end of handle 500A or 500B, the inclined plane 501c of handle portion 501 is almost parallel relative to ground.On the other hand, the front end face 509a covering the elastomer 509 of handle portion 501 is formed as parallel with vertical guide.That is, the end covering the elastomer 509 of the front end face of handle portion 501 is formed as downside than upside wall thickness.Thus, for electric hammer 100, impact when toppling over towards the mode on ground with the front end of handle 500A or 500B can be buffered in.

In addition, as shown in Figure 2, the region close with electric switch 510 in the inner space outside between the inner surface of side body 105 and the outer surface of body shell 103, is configured with the electric material shell 540 of the electric material parts such as storage controller 541, electric wire.And; as shown in Fig. 2, Fig. 8 and Fig. 9; the region opposed with electric switch 510 in this electric material shell 540; namely in the region that the base portion 503 with a handle 500A is opposed, be configured with for the protection of electric material shell 540 and the strengthening part 543 of electric material parts being accommodated in electric material shell 540.Strengthening part 543 is synthetic resin or aluminum, and the door shape that two side plates being formed as being configured to opposed shape by separating predetermined distance and a top board being interconnected with one another an end of two side plates are formed.Strengthening part 543 configures in the mode of the part striding across electric material shell 540 thus covers a part for this electric material shell 540, and is fixed on body shell 103 by screw 545.Fig. 8 represents that the electric material shell 540, Fig. 9 configured before strengthening part 543 represents the electric material shell 540 of the state being configured with strengthening part 543.

Electric hammer 100 involved by present embodiment is formed as described above.Therefore, when carrying out hammering operation by electric hammer 100, operating personnel holds a pair handle 500A, 500B respectively by the hand on left side and right side, and by tup 119 towards under state under, by the action bars portion 521 of finger presses trigger 520 of handle 500A holding side.When being rotated to operating position (position shown in Fig. 4) for rotating fulcrum with axle portion 525 by the action bars portion 521 of finger presses, then guide Actuator Division 523 by the engaging recessed part 531 of the guiding piece 530 that compresses switch.Thus, switch guiding piece 530 moves towards switch main body portion 511 with linearity, thus passes through abutting part 533 plunger depressed 513 of switch guiding piece 530.Therefore, plunger 513 overcomes the active force of the built-in spring in switch main body portion 511 and moves in a linear fashion to side, switch main body portion 511, thus opening/closing portion is switched to opening from closed condition.Electro-motor 110 can be driven by this switching, thus make tup 119 carry out linearly operating and carry out hammering operation to work piece.

In addition, stop hammering operation if want, remove the pressing in the action bars portion 521 to trigger 520, then by the active force of the built-in spring in switch main body portion 511, plunger 513 is moved to the direction outstanding from switch main body portion 511.Thus, the opening/closing portion in switch main body portion 511 switches to closed condition from opening, thus electro-motor 110 is stopped.By making plunger 513 move to the direction outstanding from switch main body portion 511, thus switch guiding piece 530 and trigger 520 restore to preoperative position.

According to the present embodiment, the rotational motion of trigger 520 is transformed to the rectilinear motion of switch guiding piece 530, and passes through the rectilinear movement of this switch guiding piece 530, plunger 513 is moved point-blank.Therefore, acted on the plunger 513 of electric switch 510 in a linear fashion by switch guiding piece 530, thus make the movement of plunger 513 become smooth and easy.In this case, about the long axis direction of plunger 513, between the abutting part 533 and the front end of plunger 513 of switch guiding piece 530, do not produce relative movement.That is, the friction between the end face of abutting part 533 mutually abutted and the end face of plunger can be avoided, thus reduce the wearing and tearing of end face.

In addition, according to the present embodiment, handle 500A is formed as the cartridge of the strip in inside with hollow bulb.And the mode that the axis that plunger 513 extends with the moving direction made along this plunger 513 is consistent with the long axis direction of handle is configured at the inside of the base portion 503 of handle 500A.Therefore, it is possible to utilize the hollow bulb of handle portion 501 reasonably to configure plunger 513 and between this plunger 513 and trigger 520 with the switch guiding piece 530 that sandwiched shape configures.

In addition, according to the present embodiment, at the above-below direction rotating operation trigger 520 that the long axis direction with handle 500A intersects.Therefore, as long as the finger passing through to hold handle 500A holds handle 500A together and trigger 520 just can operate trigger 520, therefore operability is good.

In addition, according to the present embodiment, handle 500A has the base portion 503 be connected with outside housing 105 and the handle portion 501 held for operating personnel, and electric switch 510 is configured at base portion 503.In this case, in the present embodiment, the position of the rotating fulcrum of trigger 520 is set near switch main body portion 511 on the long axis direction of plunger 513.That is, trigger 520 is configured at as far as possible near tool body side.Therefore, it is possible on the basis of shift motion of guaranteeing plunger 513, shorten the long axis direction length of handle 500A.

In addition, according to the present embodiment, the action bars portion 521 of trigger 520 extends along the long axis direction of handle 500A, guides Actuator Division 523 to extend towards the direction that the bearing of trend with action bars portion 521 intersects.And, the distance till the position held by finger in 525 to the action bars portion of axle portion 521 of the center of rotation from formation trigger 520 is set as than the distance from axle portion 525 to guiding the position engaged with switch guiding piece 530 of Actuator Division 523.Therefore, it is possible to make the power in rotating operation action bars portion 521 be less than the power of guiding Actuator Division 523 by the guiding piece 530 that compresses switch, thus operating physical force can be reduced.

In addition, in the above-described embodiment, as the example of electric tool, be illustrated with the situation of electric hammer, as long as but for bore operation electric drill, to possess the electric tool of the trigger of the electric switch of operation electrical motor driven at handle for cutting off the chain saw of operation etc., can both apply.

In addition, in view of purport of the present utility model, mode can be constructed as follows.

(mode 1)

" electric tool according to any one in technical scheme 1 ~ 7; it is characterized in that; above-mentioned hand is the strip being formed as having in inside hollow bulb; above-mentioned movable member is configured at the above-mentioned hollow bulb of above-mentioned hand handle, above-mentioned hand is the guide portion having to make the mode of above-mentioned movable member movement point-blank to guide this movable member ".

Be configured to be guided the movable member be configured in the hollow bulb of hand handle by guide portion according to mode 1, so the stabilisation of the linearly operating of movable member can be realized.

(mode 2)

" electric tool according to any one in technical scheme 1 ~ 7; it is characterized in that; above-mentioned tool body have collecting said motor body shell and to configure from the mode of this body shell of outer side covers and the outside housing linked via elastomeric element and this body shell, and at above-mentioned outside housing, above-mentioned hand handle is installed.

According to mode 2, the vibration produced in body shell when processing operation can be reduced and transmit to hand handle.

(mode 3)

" electric tool according to mode 2; it is characterized in that; there is the electric material shell of collecting electric material parts; above-mentioned electric material shell is configured at the region close with above-mentioned switch in the inner space between outer surface and the inner surface of above-mentioned outside housing being formed in aforementioned body housing; be configured with strengthening part between above-mentioned outside housing and above-mentioned electric material shell, and above-mentioned strengthening part is fixed on aforementioned body housing with the state being at least partially configured to cover above-mentioned electric material shell ".

According to mode 3, when masterpiece is used for outside housing outside, bears above-mentioned external force via strengthening part by body shell, thus external force can be avoided to the effect of electric material shell, and then protect this electric material shell and electric material parts.

(mode 4)

" the electric tool according to technical scheme 7, it is characterized in that, above-mentioned hand and above-mentioned second-hand the handle portion respectively with tubular and the elastomer in outside covering this handle portion, the inclined plane that the axis that the front end face of above-mentioned handle portion is formed as extending relative to the long axis direction along above-mentioned front end tool tilts, the angle of inclination of above-mentioned inclined plane is set as the extended line that extends along this inclined plane angle towards the front end area of above-mentioned front end tool, the above-mentioned elastomeric end covering the front end face of above-mentioned handle portion is formed as the opposition side wall thickness of above-mentioned front end tool side than this front end tool.

According to mode 4, the opposition side wall thickness of front end tool side than this front end tool is formed as by the elastomeric end of front end face covering handle portion, thus the buffering effect that raising produces with the elastomer of the front end of front end tool for starting point and when toppling over towards the mode on ground with the front end of handle portion when electric tool.

(each member of formation of embodiment and the corresponding relation of member of formation of the present utility model)

Each member of formation in present embodiment and the relation of the member of formation in the utility model in the specific item of utility model as follows.Certainly, only relevant with corresponding of the present utility model specific item one of each member of formation in present embodiment implements configuration example, and each member of formation of the present utility model is not limited thereto.

Electric hammer 100 is examples for the structure corresponding to " electric tool " of the present utility model.

Main part 101 is examples for the structure corresponding to " tool body " of the present utility model.

Tup 119 is examples for the structure corresponding to " front end tool " of the present utility model.

Electro-motor 110 is examples for the structure corresponding to " motor " of the present utility model.

A handle 500A is an example of the structure corresponding to " hand handle " of the present utility model.

Another handle 500B is an example of the structure corresponding to " second-hand's handle " of the present utility model.

Handle portion 501 is examples for the structure corresponding to " handle part " of the present utility model.

Base portion 503 is examples for the structure corresponding to " base portion " of the present utility model.

Electric switch 510 is examples for the structure corresponding to " switch " of the present utility model.

Plunger 513 is examples for the structure corresponding to " actuator " of the present utility model.

Trigger 520 is examples for the structure corresponding to " switching manipulation parts " of the present utility model.

Action bars portion 521 is examples for the structure corresponding to " Part I " of the present utility model.

Guiding Actuator Division 523 is examples for the structure corresponding to " Part II " of the present utility model.

Switch guiding piece 530 is examples for the structure corresponding to " movable member " of the present utility model.

Claims (7)

1. an electric tool, it drives front end tool to carry out processing operation by motor, and the feature of described electric tool is to have:

Tool body, it accommodates described motor;

Hand handle, it is connected with described tool body;

Switch, consist of and can drive the opening of described motor and stop switching between the closed condition of described motor, and there is the actuator that can carry out movement for carrying out switching between described opening and described closed condition on the axle specified in a linear fashion;

Switching manipulation parts, it can be arranged at described hand handle rotationally centered by the fulcrum of regulation, and between initial position and the operating position separating predetermined distance from this initial position, can carry out rotating operation by operating personnel; And

Movable member, it is located between described switching manipulation parts and the actuator of described switch, and can move in a linear fashion on the axle of described regulation,

Described electric tool is configured to: when having carried out rotating operation from described initial position to described operating position to described switching manipulation parts, these switching manipulation parts are utilized to press described movable member, this movable member is moved in a linear fashion on the axle of described regulation, thus described actuator is moved in the mode making described switch and switch to described opening from described closed condition.

2. electric tool according to claim 1, is characterized in that,

Described hand handle is formed as strip,

The actuator of described switch is configured at the inside of described hand handle,

The axis that described actuator carries out the axle of the described regulation of movement is consistent with the long axis direction of described hand handle.

3. electric tool according to claim 1 and 2, is characterized in that,

Described switching manipulation parts are set to: relative to described hand, the direction that edge and the axis of the axle of described regulation centered by the fulcrum of described regulation are intersected can be rotated.

4. electric tool according to claim 1 and 2, is characterized in that,

Described hand the handle part that there is the base portion that is connected with described tool body and hold for operating personnel,

Described switchgear distribution is in described base portion.

5. electric tool according to claim 4, is characterized in that,

The fulcrum forming the described regulation at the center of the rotational motion of described switching manipulation parts is arranged at described base portion.

6. electric tool according to claim 1 and 2, is characterized in that,

Described switching manipulation parts have: can carry out by the finger of operating personnel the Part I that operates and relative to described movable member the mode of relative movement can carry out engaging and to make the Part II of this movable member movement,

The distance of fulcrum to the position engaged with described movable member of described Part II from described regulation is compared from the distance of fulcrum to the position held by finger of described Part I of the described regulation at the center of the rotational motion of the described switching manipulation parts of formation.

7. electric tool according to claim 1 and 2, is characterized in that,

Described electric tool is configured to the hammer tool possessing the long axis direction linearly operating along described front end tool thus the strike part to this front end tool applying hitting power,

Described electric tool, except described hand handle, also has second-hand's handle,

Described hand with described second-hand to configure across the mode of the axis extended along the long axis direction of described front end tool,

Described hand configures with described second-hand the mode extended with the direction intersected along the long axis direction with described front end tool.