CN1093028C - Electric cable cutter - Google Patents
Electric cable cutter Download PDFInfo
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- CN1093028C CN1093028C CN96102293A CN96102293A CN1093028C CN 1093028 C CN1093028 C CN 1093028C CN 96102293 A CN96102293 A CN 96102293A CN 96102293 A CN96102293 A CN 96102293A CN 1093028 C CN1093028 C CN 1093028C
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- electric cable
- cable cutter
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Abstract
The present invention relates to a cable cutter used for cutting cables, which comprises a housing, a motor arranged in the housing, a planetary reduction gear which is driven by the motor and is positioned in the housing, a fixed cutting edge, a movable cutting edge, a power supply of the motor, and a switch, wherein the fixed cutting edge is fixed on the planetary reduction gear arranged in the housing so that the fixed cutting edge can extend from the opening of the housing. A first cutting edge is arranged on the inner edge of the movable cutting edge, and a gear is arranged on the outer edge; the gear is arranged in the housing so that the gear can extend from the opening of the housing and can be arranged on the fixed cutting edge through a shaft journal; the movable cutting edge can rotate through the planetary reduction gear; the switch is used for starting up and shutting down the motor.
Description
The present invention relates to a kind of electric cable cutter, be used to cut off for example cable of telecommunication cable one class, particularly such electric cable cutter, it is of portable form, and cuts off cable with a motor by driving planetary reduction gear.
Electric cable cutter is used for cutting off communication cable, electric wire and other cable when construction.A kind of common electric cable cutter is fixed on electric wire between the clamper, and cuts off electric wire with the cutter of a hydraulic pressure.Another kind of electric cable cutter is manual cutter, as shown in Figure 1.It comprises that an end has the connecting rod 101 of edge of a knife 101a, and connecting rod 102, one connecting rods 103 and the handle 104,105 of edge of a knife 102a arranged, and has constituted a toggle.In this cutter, along with handle 104 and 105 direction shown in the arrow in Fig. 1 is rotated, edge of a knife 101a and 102a rotate in an opposite direction around axle 106, and the cable or the similar material that will be fixed between edge of a knife 101a and the 102a by a shear stress cut off.
Another kind of cutter is an electronic cutter.Comprise the electric wire that is connected in power supply, the switch that is used to drive the drive unit of the edge of a knife and is used to make device to open and close.The position that is easy to place finger on handle is provided with a shift bar that is used for master cock.Usually, most shift bars have a safety device (safety switch handle), and when the accidental contact-making switches of other parts of finger or health, it can not start drive unit.
Most safety switch handles have such structure, even shift bar is depressed, can prevent that also it from moving.For example, a connecting rod that moves with button is near the shift bar setting, and when button with pointing when moving, connecting rod prevents the motion of shift bar.
During construction, the workman must work under a restricted condition, for example, with supporting health on the other hand, catches some materials aloft.---for example eminence and the place that consumes one's strength---uses electric cable cutter so the workman need use some servicing units, with the place in inconvenience.
In addition, in the electronic cutter of safety switch handle is arranged, can not be with the hand operating safety switch handle of---particularly catching the hand (finger) of electric cable cutter---.In addition, because need be connected in the electric wire of power supply, so this electric cable cutter can only be used for limited occasion.
The purpose of this invention is to provide a kind of electric cable cutter, it is of portable form, and can easily operate with a hand.
The invention provides a kind of electric cable cutter that is used to cut cable, comprising: a shell; One is positioned at the motor of described shell; One by described motor-driven planetary reduction gear, is positioned at described shell; The one fixing edge of a knife, it is fixed in the described shell on the planetary reduction gear, stretches out with the opening part of activation from described shell; The one movable edge of a knife has first edge of a knife on rib in it, and a gear is arranged on the outer rib, and it is arranged in the described shell and stretches out from shell aperture with activation, and is journaled on the described fixedly edge of a knife by one, by described planetary reduction gear the described movable edge of a knife is rotated; One is used for the power supply of described motor; One is used to start and close the switch of described motor; One has the shift bar of a latch buttons, and this shift bar is fixed on the drive unit.
According to a further aspect in the invention, described power supply is a rechargeable battery, and it is contained in one can be from the battery case that described shell takes off.
According to a further aspect in the invention, the gear that forms on the rib outside the described movable edge of a knife is one fan-shaped.
According to a further aspect in the invention, on the interior rib of the described fixedly edge of a knife one second edge of a knife is arranged.
According to a further aspect in the invention, described first edge of a knife is an arc.
According to a further aspect in the invention, a spring is connected in an end of described movable blade ability to speak wheel, has the roughly the same tooth of tooth with described movable blade ability to speak wheel on it.
According to a further aspect in the invention, on the described fixedly edge of a knife, be provided with a protector, so that when the described fixedly edge of a knife damaged, its fragment can not disperse.
According to a further aspect in the invention, comprise that also one is used to handle the shift bar of described switch, be fixed on the drive unit of described switch, and be connected on the outer surface of described shell, described shift bar has a latch buttons, and a dog that can insert in the described shell upper recess is arranged on it; Also comprise a spring; By handling described shift bar, described switch can be at a forward or the described movable edge of a knife of a reverse drive; When depressing described latch buttons, described dog can be thrown off from described recess, and described shift bar can drive the direction motion of described switch; When unclamping described latch buttons, described dog enters described recess, and prevents that described switch is operated.
According to a further aspect in the invention, a dustproof brush is connected in the opening on the described shell, to cover the described opening and the described movable edge of a knife of cleaning.
According to a further aspect in the invention, described dustproof brush comprises the installation plate of a polyacetals and is arranged on animal wool on the described installation plate.
According to a further aspect in the invention, two fixedly the edge of a knife be fixed on the described planetary reduction gear with a predetermined gap, and described two fixedly the edge of a knife be no blade; The described movable edge of a knife is bearing on the described fixedly edge of a knife pivotly, fixedly moves between the edge of a knife at described two with activation.
According to a further aspect in the invention, first edge of a knife of the described movable edge of a knife is straight.
According to a further aspect in the invention, with the described movable edge of a knife with fixedly the area of the relative counteractive part of the part that acts on mutually of the edge of a knife is sufficiently big, so that when the cutting cable, the distance that axle one is scheduled to is left in the described fixedly edge of a knife and the contacted position of movable edge of a knife reaction part.
According to electric cable cutter of the present invention, can catch electric cable cutter with a hand, and with a material that will cut off for example a cable insert fixedly between the edge of a knife and the movable edge of a knife, then with switch opens.Motor-driven planetary reduction gear, and the gears engaged of the pinion of planetary reduction gear and the movable edge of a knife.The movable edge of a knife rotates to cut off cable around bolster.During cutting, can the clean-up activities edge of a knife, the chip that attaches thereon can not entered in the shell.
In addition,, do not pushing under the situation of latch buttons,, and forming a closedown mode because the pawl of latch buttons inserts the recess of shell according to switch of the present invention, though the push switch handle, can not console switch.So the movable edge of a knife can not rotate.On the other hand, under the situation that latch buttons is depressed, because the pawl of latch buttons is thrown off, unclamp mode and form one from the recess of shell, switch can be operated the movable edge of a knife is rotated.So, can be with a hand the catching electric cable cutter switch of actuating cable cutter easily and safely.
In addition, spring has basically the identical tooth of tooth with the gear of the movable edge of a knife, and is continuous with the toe joint of identical distance and gear with activation, so the tooth that the tooth of spring can the boot activity edge of a knife and the tooth of pinion form engagement stably.So, directly compare with the tooth of the movable edge of a knife with the situation of pinion, can avoid interference and any damage of between cog.
Fig. 1 is the schematic diagram that is used to cut off the common cable cutter of cable;
Fig. 2 is the perspective view of first embodiment of the invention electric cable cutter;
Fig. 3 is the front view of the first embodiment electric cable cutter;
Fig. 4 is the first embodiment electric cable cutter side view that the P direction is seen from Fig. 3;
Fig. 5 is the rearview of the first embodiment electric cable cutter, is to be in before the movable edge of a knife and the pinion;
Fig. 6 is the cutaway view of the planetary reduction gear internal structure of the first embodiment electric cable cutter;
Fig. 7 is the perspective view of the first embodiment electric cable cutter movable blade ability to speak wheel end;
Fig. 8 is the front view of the shearing device of the first embodiment electric cable cutter, and wherein, the movable edge of a knife that constitutes shearing device begins and pinion;
Fig. 9 is the front view of the shearing device of the first embodiment electric cable cutter, wherein, and the movable edge of a knife and pinion;
Figure 10 is the front view of the shearing device of the first embodiment electric cable cutter, and wherein, the movable edge of a knife has been finished the engagement with pinion;
Figure 11 is the schematic diagram of the enclosure structure of the first embodiment electric cable cutter;
Figure 12 is the cutaway view along B-B line among Figure 11;
Figure 13 is the perspective view of the shift bar of the first embodiment electric cable cutter;
Figure 14 is the part perspective view of shell handle apparatus;
Figure 15 is positioned at the switch on the electric cable cutter shell and the schematic diagram of shift bar, and wherein, latch buttons is not depressed;
Figure 16 is the partial view of electric cable cutter shell recess and latch buttons;
Figure 17 is positioned at the switch on the electric cable cutter shell and the schematic diagram of shift bar, and wherein, latch buttons is depressed;
Figure 18 is the partial view of shell recess and latch buttons;
The view of the shift bar during Figure 19 is to use;
Figure 20 is the perspective view of the dustproof brush of electric cable cutter;
Figure 21 is the front view of another embodiment of the dustproof brush of electric cable cutter;
Figure 22 is the perspective view of second embodiment of the invention electric cable cutter;
Figure 23 is the front view of third embodiment of the invention electric cable cutter;
Figure 24 is the front view of the first embodiment electric cable cutter;
Figure 25 A has shown the fixedly gap between the edge of a knife and the movable edge of a knife of the 3rd embodiment electric cable cutter;
Figure 25 B has shown the 3rd embodiment electric cable cutter gap between the edge of a knife when cutting off cable;
Figure 26 A has shown the fixedly gap between the edge of a knife and the movable edge of a knife of the first embodiment electric cable cutter;
Figure 26 B has shown first embodiment electric cable cutter gap between the edge of a knife when cutting off cable;
Figure 27 is the front view that the fixedly edge of a knife of a protector is arranged.
Present invention is described below by embodiment and with reference to accompanying drawing.In description, identical label is represented identical parts, and has omitted being repeated in this description same parts.
Fig. 2 is the perspective view of the electric cable cutter of first embodiment of the invention.Fig. 3 is its front view.Fig. 4 is the side view that the P direction is seen from Fig. 3.Fig. 5 is its rearview.
In electric cable cutter, outside fixedly the edge of a knife 1 and the movable edge of a knife 2 were exposed to, other all parts all were contained among the shell 3.Shown in Fig. 2-5, shell 3 is by the plastics manufacturing, and comprise a housing parts 3a, one motor (back will be described) and one wherein is housed by motor-driven planetary reduction gear, with one handle part 3b, its shape should be convenient to that a hand is caught and a power section 3C, and a battery case 4 can insert wherein.One shift bar 5 is arranged on handle portion 3b, be used for the console switch starter motor.
The shift bar 5 that is positioned at shell 3 handle portion 3b comprises a forward shift bar 9, is used for a mode drive motors and a reverser handle 10 with forward, be used for reverse mode drive motors, and a latch buttons 11 between them.For the sake of security, when latch buttons 11 was depressed together, forward shift bar 9 and reverser handle 10 could be operated.
To flow at excessive electric current under the situation of motor, for example during the other materials when it is used for the regulation cable outside, or to work long hours afterwards and when overheated, motor is unlikely to be burnt in order protecting, and a breaker (45 among Figure 11) is housed in housing 3 when motor.When breaker started, if electric cable cutter has shut down, a return pin 46 stretched out from shell 3.In order to restart electric cable cutter, after through 10 seconds, return pin 46 is pushed back original position.
The housing parts 3a of shell 3 has an air vent 44, is used to prevent drive unit---and for example motor or the caused housing parts of planetary reduction gear is overheated.
At the top of housing parts 3a one opening 6 is arranged, fixedly the edge of a knife 1 stretches out from opening 6, and fixedly the edge of a knife has a curved edge 1a, and the one end is fixed on the planetary reduction gear.The fan-shaped movable edge of a knife 2 is arranged on the fixedly external part of the edge of a knife 1 by a bolster 7.On the interior rib of the movable edge of a knife 2 a curved edge 2a is arranged, and on the rib gear 2b is arranged outside, with activation and pinion 35 (output gear) engagement.In addition, be provided with a dustproof brush 8, it can cover opening 6, and can be closely contacts with the fixing edge of a knife 2.When pressing a locking bolt 4a, battery case 4 is pulled outwardly from shell 3, it can be taken out from power unit 3C.
Below, describe the planetary reduction gear 13 that is contained in the present embodiment among the electric cable cutter shell 3 housing 3a in detail.The internal structure of planetary reduction gear 13 is shown among Fig. 6.
First central gear 21 and second gear 20 are formed on the same axle, and it is a pinion that little diameter is arranged.First central gear 21 and planetary gear 23 carry out the third level and slow down, planetary gear 23 and first internal gear, 22 engagements of being fixed on the gear hub 19.One group of planetary gear 27 is arranged between secondary sun wheel 25 and the secondary annulus 26, the rotation that secondary sun wheel 25 and planetary gear holding plate 24 monolithic moldings are used to transmit planetary gear 23, secondary annulus 26 is fixed on the gear hub 19, and they carry out the fourth stage and slow down.
In addition, one the 3rd central gear 30 is formed on the axle 29 that is connected with planetary gear holding plate 32 splines.Planetary gear 33 is fixed on the planetary gear holding plate 32, and at the 3rd central gear 30 be fixed between the 3rd internal gear 31 of gear hub 19.They carry out level V and slow down.The rotation of planetary gear 33 passes to pinion (output gear) 35 by the output shaft 34 that is connected with planetary gear holding plate 32 splines.Level V slows down a big torque of generation on pinion 35 and the movable edge of a knife 2 is rotated.
Below, describe the shearing device that constitutes by the fixedly edge of a knife 1 and the movable edge of a knife 2 of present embodiment electric cable cutter in detail.
Fig. 7 is the perspective view of sector gear 2b one end of the movable edge of a knife 2.One long leaf spring 12 is connected in the end of the tooth of the movable edge of a knife 2 gear 2b.Leaf spring 12 has a tooth 12a, and the tooth 2b of itself and gear 2b has essentially identical shape.Spring 12 is fixed in the end of the tooth of gear 2b, and it is by board 12b that the bottom 2C that extends into the movable edge of a knife 2 ends from tooth 12a end is installed and 12C and fixes a 12D of L shaped plate portion with a screw 36 and realize.Preferably the tooth with gear 2b is identical basically with thickness for the height of the tooth 12a of spring 12.In addition, preferably spring 12 end that is connected in the movable edge of a knife 2 makes tooth 12a continuous with the tooth of gear 2b with roughly the same interval.There is the spring 12 of tooth 12a also to be connected in the other end of the movable edge of a knife 2.
Fig. 8 has shown the movable edge of a knife 2 of beginning and pinion 35 engagements, and Fig. 9 has shown the movable edge of a knife 2 with pinion 35 engagements.When the movable edge of a knife 2 did not contact with pinion 35, the movable edge of a knife 2 did not begin to rotate, so that the tooth of gear 2b need enter with the tooth of pinion 35 and contacts.Then, when above-mentioned drive unit driving pinion 35, be connected in the tooth 12a and pinion 35 engagements of spring 12 of the tooth 2b end of the movable edge of a knife 2.In this position, the tooth 12a of spring 12 is out of shape and meshes with pinion 35, and then, the tooth of gear 2b and pinion 35 mesh reposefully.In other words, the tooth 12a of spring 12 makes between pinion 35 and the gear 2b and can mesh reposefully.So, directly compare with the tooth of the gear 2b of the movable edge of a knife 2 with the situation of pinion 35 engagements, have the movable edge of a knife 2 of spring 12 can make engagement very steady, and the tooth of the movable edge of a knife 2 and pinion 35 can not withstand.
Figure 10 has shown finishing of meshing between the movable edge of a knife 2 and the pinion 35.Because the tooth 12a identical with the tooth of gear 2b is connected in the two ends of the movable edge of a knife 2 teeth, so, if the movable edge of a knife 2 in backward rotation, tooth and pinion that tooth 12a also can guide gear 2b mesh reposefully.
Below, describe the switch of electric cable cutter and the structure of shift bar in detail.
Figure 11 has shown the internal structure of Fig. 3 middle shell part 3a and handle portion 3b.Figure 12 has shown among Figure 11 the cross section along the B-B line.As shown in figure 11, shift bar 5 is connected in handle portion 3b, and switch 37 is connected in shell 3 by the pawl on the shell 3 49.Switch 37 comprises the driving shaft 37a of a rectangle, and a flank 38 inserts fixed thereon.In example shown in Figure 11, even console switch handle 5, switch 37 can not opened yet.On the other hand, when pressing forward shift bar 9 when latch buttons 11 is depressed, switch 37 is opened, and makes pinion 35 at forward the direction driving activity edge of a knife 2 (direction of the cut-out cable in Fig. 8 shown in the arrow).When pressing reverser handle 10 when depressing latch buttons 11, switch 37 is opened, and makes pinion 35 at backward the direction driving activity edge of a knife 2 (direction in Figure 10 shown in the arrow).
Shown in Figure 12 and 13, the outer surface of latch buttons 11 has a pawl 11a and a columniform projection 11C, and a spring 39 can insert among the projection.Latch buttons 11 is contained in the recess location at shift bar 5 middle parts.During assembling, the cylindrical projections 11C that spring 39 is housed is inserted in the hole 42 on shift bar 5 recesses 40, and switch 37 and shift bar 5 are contained in the handle portion 3b of shell 3.
Shown in Figure 12 and 14, be formed with rectangular recess 41 in the side of the handle portion 3b of shell 3, the pawl 11a that latch buttons 11 sides are formed can be contained in this place.For switch 37 and shift bar 5 are contained in the shell 3, the rectangle pawl 11a on the latch buttons 11 inserts in the recess 41.Then, latch buttons 11 is connected in shell 3 to make it mode movable a little in shift bar 5 recesses 40, and make when depressing---for example by finger---during latch buttons 11, the elasticity of spring 39 makes pawl 11a throw off from shell 3, and when finger unclamped latch buttons 11, pawl 11a inserted in the recess 41 again.In other words, latch buttons 11 is connected in shell 3 and makes pawl 11a can freely insert recess 41 and therefrom deviate from.
The operation of the shift bar 5 of said structure is described below.
Figure 15 has shown the shift bar 5 that is used to open and close the switch 37 of electric cable cutter drive unit and is connected in the handle apparatus 3b of shell 3, is in the state that latch buttons 11 is not depressed.Figure 16 is the recess 41 of handle apparatus 3b and the partial view (for the sake of clarity, latch buttons partly is represented by dotted lines) of latch buttons 11.
Under the situation of Figure 15 and 16, because the pawl 11a of latch buttons 11 inserts the recess 41 (locked position of coupler) of handle portion 3b, though push forward shift bar 9 or reverser handle 10, switch 37 can not opened by the axle 37a of driving switch 37 yet.So though master cock handle 5, the movable edge of a knife 2 can not rotate in either direction.
Figure 17 has shown the shift bar 5 that is used to the housing parts 3b that opens and closes the switch of electric cable cutter drive unit and be connected in shell 3, is in the state that latch buttons 11 is depressed.Figure 16 is the partial view (for clarity sake, latch buttons 11 parts are represented by dotted lines) of handle portion 3b recess 41 and latch buttons 11.
Under the situation of Figure 17 and 18, because the pawl 11a of latch buttons 11 throws off (released position) from the recess 41 of handle apparatus 3b, when pushing forward shift bar 9, the driving shaft 37a of switch 37 is switched on, and the movable edge of a knife 2 is rotated in the direction of cutting off cable.In addition, when pushing reverser handle 10, the driving shaft 37a of switch 37 is switched on, and makes the movable edge of a knife 2 rotate (in the direction of not cutting off cable) in an opposite direction.So the movable edge of a knife 2 can rotate in either direction.
As mentioned above, because electric cable cutter has the shift bar 5 that is connected in shell 3 handle apparatus 3b and is positioned at the latch buttons 11 at shift bar 5 middle parts, thus can handle electric cable cutter easily and safely by a hand catching electric cable cutter, as shown in figure 19.
The dustproof brush 8 of the opening 6 that is connected in electric cable cutter shell 3 housing parts 3a is described below with reference to Figure 20 and 21.As shown in figure 20, dustproof brush 8 inserts the opening 6 of housing parts 3a, and is attached thereto by screw 42.The bristle 8b of dustproof brush covers opening 6, is swept into surface into the movable edge of a knife 2 of opening 6 with activation.
Another embodiment as dustproof brush can form dustproof brush as shown in figure 21, its opening and taking off from it of easily packing into.There is a thick coupling part 81a at installation plate 81 middle parts of dustproof brush 80, and the two ends that plate 81 is installed form supporting leg, and the end of supporting leg forms hook 81b.Opening 6 at housing parts 3a is formed with a targeting part 82 and latch portion 83, and they can cooperate with coupling part 81a and hook 81b.Direction shown in the arrow is pushed dustproof brush 80 sides and is inserted into opening 6 in Figure 21, makes hook 81b be latched in latch portion 83.In the present embodiment, preferably adopt the polyacetals resin manufacture that plate is installed, because its durability and elasticity are all fine.
Above-mentioned electric cable cutter is suitable for cutting off the multiply copper cash.In order to use the electric cable cutter of present embodiment, catch the handle portion 3b of electric cable cutter with a hand, and as shown in Figure 2, with a cable that will cut off along the fixedly edge of a knife 1a placement of the edge of a knife 1.At this moment, on the throne if the tooth of the gear 2b of the movable edge of a knife 2 does not have, push away the movable edge of a knife 2 with finger in direction shown in Figure 1, it is contacted with the pinion 35 of planetary reduction gear 13.Then, with finger forward shift bar 9 and latch buttons 11 are together pressed and to be made switch connection, make the motor 14 in the shell 3 begin to drive planetary reduction gear 13.So pinion 35 makes the movable edge of a knife 2 rotate around axle 7 direction shown in the arrow in Fig. 2 by gear 2b, and produces a big torque by slowing down, the movable then edge of a knife 2 cuts off cable.If the chip that forms when cutting off falls down or attached on the movable edge of a knife 2, cover dustproof brush 8 on shell 3 openings 6 and prevent that chip from falling among the opening 6, and the removing activity edge of a knife 2, and prevent to enter among the opening 6 attached to the chip on the movable edge of a knife 2.In addition, because the movable edge of a knife 2 can be thrown off from pinion 35, as shown in Figure 5, the material that cut off for example cable can insert from the S of space.So, by will long cable from the S of space, inserting electric cable cutter and can be easily with its cut-out.
Below, the second embodiment of the present invention is described.The electric cable cutter that electric cable cutter among first embodiment is suitable for cutting off the multiply copper cash, but in the present embodiment, description is suitable for cutting off thin material---for example connection (CCP cable)---.
Figure 22 is the front view of the electric cable cutter of second embodiment.The shearing device of the electric cable cutter of present embodiment is different with first embodiment's, and other structures such as drive unit, shift bars etc. are basically the same as those in the first embodiment.
As shown in figure 22, in the electric cable cutter of present embodiment, do not adopt, but adopt two edge of a knife guide 50a and 50b that are fixed in the no sword on the planetary reduction gear 13 as the fixedly edge of a knife 1 that edge of a knife 1a is arranged among first embodiment.The movable edge of a knife 51 is fixed in the external part of edge of a knife guide 50a and 50b pivotly by axle 52, moving between two edge of a knife guide 50a and 50b.Identical with first embodiment, the movable edge of a knife 51 has the gear 51b that is formed on its outer rib, with shell 3 in pinion 35 engagements of planetary reduction gear 13, and the tooth 53a of spring 53 systems is arranged at tooth 51b two ends.The edge of a knife 51a of the movable edge of a knife 51 is not fan-shaped, but straight, be used to cut off thin material, and its angle is sharper keen than the edge of a knife among first embodiment.
Because edge of a knife guide 50a and 50b do not have blade, so the material that will cut off will not be stuck between edge of a knife guide 50a and the 50b and the movable edge of a knife 51.So the electric cable cutter of present embodiment is suitable for cutting off thin material, particularly CCP cable.
Third embodiment of the invention is described below.In the present embodiment, describe and to be used to cut off for example electric cable cutter of SS cable of thin cable or hard cable.In the present embodiment, identical with second embodiment, shearing device is different with first embodiment's, and other structures such as drive unit, shift bars etc. are basically the same as those in the first embodiment.For clarity sake, by the shearing device that compares present embodiment present embodiment is described with first embodiment.
Figure 23 has schematically shown the electric cable cutter of third embodiment of the invention, and Figure 24 shows the electric cable cutter of first embodiment of the invention.
Electric cable cutter of the present invention comprise one stretch out and be fixed in from shell 3 tops planetary reduction gear 13 the fixedly edge of a knife 55 and one by axle 57 supportings of the fixing edge of a knife 55 and with the movable edge of a knife 56 of pinion 35 engagements.Fixedly on the interior rib of the edge of a knife 55 edge of a knife 55a is arranged, an edge of a knife 56a is arranged on the interior rib of the movable edge of a knife 56, and on the rib gear 56b is arranged outside, with pinion 35 engagements of activation and planetary reduction gear 13.The tooth 58a that spring 58 is arranged at the two ends of the tooth of gear 56b is with the steady engagement between the tooth of guide gear 56b and pinion 35.
Figure 25 A has schematically shown the fixedly edge of a knife 55 of electric cable cutter of the 3rd embodiment and the gap between the movable edge of a knife 56, the electric cable cutter that Figure 25 B has schematically shown the 3rd embodiment fixing gap between the edge of a knife and the movable edge of a knife when cutting off a cable.Equally, the electric cable cutter that Figure 26 A has schematically shown first embodiment is the gap between the edge of a knife 1 and the movable edge of a knife 2 fixedly, the electric cable cutter that Figure 26 B has schematically shown first embodiment fixing gap between the edge of a knife and the movable edge of a knife when cutting off a cable.
The electric cable cutter of the 3rd and first embodiment shown in Figure 23 and 24 has adopted the cutting mechanism of two edges of a knife, so that is fixedly requiring gapped C1 respectively, C2 between the edge of a knife 55,1 and the movable edge of a knife 56,2.
At first, gap in the first embodiment electric cable cutter is described.When cutting off cable 70, the counteractive part 1 relative with part 1,2 ', 2 ' near axle 7, be in contact with one another.In other words, the edge of a knife is opened because the pressure of side acts on fixedly on the edge of a knife 1 and the movable edge of a knife 2, so, the clearance C between edge of a knife 1a and 2a ' be by reaction part 1 ', 2 ' area D2 determine.So when the electric cable cutter of first embodiment was used to cut off thin electric wire or hard material, its exterior material for example dielectric film was stuck in fixedly between the edge of a knife 1 and the movable edge of a knife 2, and cable can't be cut off.
Because during cable cutting, the clearance C 2 between the edge of a knife ' be big is so at for example fixing edge of a knife 1, deflection just takes place in the movable edge of a knife 2 and axle 7 grades above the assembly.Under the situation that big deflection is arranged, will reduce the durability of electric cable cutter.
On the other hand, in the electric cable cutter of the 3rd embodiment shown in Figure 25 B, near supporting fixedly spools 57 reaction part 55 of the edge of a knife 55 and the movable edge of a knife 56 ', 56 ' area D1 greater than the area D2 among first embodiment.
So, though the clearance C 1 shown in Figure 25 A is identical with clearance C 2 among first embodiment, fixedly the edge of a knife 55 and the movable edge of a knife 56 reaction parts 55 ', 56 ' area D1 greater than the respective area among first embodiment.In addition, shown in Figure 25 B, when the cutting cable, though side pressure acts on fixedly on the edge of a knife 55 and the movable edge of a knife 56, compare with first embodiment, reaction part 55 ', 56 ' contacted position is away from axle 57, so that edge of a knife 55a, the clearance C 1 between the 56a ' and be little.Along with area D1 becomes big, the gap smaller between the edge of a knife; Yet because weight and cost, area D1 cans be compared to the big twice of area D2 among first embodiment most.
Adopt said structure, when cutting off cable, can make edge of a knife 55a, the clearance C 1 between the 56a ' very little, so that when it was used to cut off thin material or hard material, the epidermis of fine rule will not be stuck between the edge of a knife.In addition, the deflection of assembly is very little, so can improve the durability of electric cable cutter.
The invention is not restricted to the embodiments described, but many kinds of modification can be arranged.For example, for the material of cutting hard, it is bigger that the angle of the edge of a knife can be done, to increase the intensity of the edge of a knife.For the various materials that will cut, can change the angle and the thickness of the edge of a knife.
In addition, as shown in figure 27, protector 63 is fixed on the fixedly edge of a knife one side by axle 7 and screw 64 along the fixing outer rib of the edge of a knife, consequently when fixing edge of a knife damage, prevents that fixedly the separation of fragments of the edge of a knife is opened.
In addition, in the above-described embodiment, adopt a battery case, but except battery case, also can use an AC converter as power supply.So, when the workman when one has the place of AC power supplies to use electric cable cutter, electric cable cutter just can use a ratio with the longer time of rechargeable battery.
In addition, in the above-described embodiment, the movable edge of a knife can rotate at positive and negative both direction, if but it does not need counter-rotating, and the movable edge of a knife also can only have the structure of just changeing.In this case, spring 12 does not need to be located at movable edge of a knife two ends, gets final product and only be located at the one end.
In addition, in Figure 25 A and Figure 25 B, for ease of comparing, the joint of axle 57 stretches out from the movable edge of a knife 56, but as shown in Figure 1, the joint of axle 7 can be located among the movable edge of a knife 2, and makes the surface ratio of the edge of a knife cleaner.
As mentioned above, use electric cable cutter of the present invention, in the position of an inconvenience---for example aloft, the user can easily cut off cable with a hand.In addition, because adopted battery case, so electric cable cutter is of portable form, so that no longer need electric wire, and can use anywhere.
In addition, the driving moment on the planetary reduction gear pinion is big, easily cuts off cable with activation with a little power---multiply copper cash for example.In addition, because there is dustproof brush to cover the opening of shell,, chip can be removed from movable edge of a knife supernatant, and make chip can not enter shell 3 at the cutting duration of work.So, can prevent mechanical breakdown.
In addition, because spring is connected in the end of movable blade ability to speak, and it has the tooth with the roughly the same shape of the tooth of the movable edge of a knife, so, can reduce damage to tooth.
The present invention can have many modification, all among spiritual scope of the present invention.
Claims (13)
1. electric cable cutter that is used to cut cable comprises:
One shell;
One is positioned at the motor of described shell;
One by described motor-driven planetary reducer, is positioned at described shell;
The one fixing edge of a knife, it is fixed in the described shell on the planetary reducer, stretches out with the opening part of activation from described shell;
The one movable edge of a knife has first edge of a knife on rib in it, and a gear is arranged on the outer rib, and it is arranged in described shell and stretches out from shell aperture with activation, and is journaled on the described fixedly edge of a knife by one, by described planetary reduction gear the described movable edge of a knife is rotated;
One is used for the power supply of described motor;
One is used to start and close the switch of described motor;
One has the shift bar of a latch buttons, and this shift bar is fixed on the drive unit.
2. electric cable cutter as claimed in claim 1 is characterized in that: described power supply is a rechargeable battery, and it is contained in one can be from the battery case that described shell takes off.
3. electric cable cutter as claimed in claim 1 is characterized in that: the gear that forms on the rib outside the described movable edge of a knife is one fan-shaped.
4. electric cable cutter as claimed in claim 1 is characterized in that: one second edge of a knife is arranged on the interior rib of the described fixedly edge of a knife.
5. electric cable cutter as claimed in claim 1 is characterized in that: described first edge of a knife is an arc.
6. electric cable cutter as claimed in claim 1 is characterized in that: a spring is connected in an end of described movable blade ability to speak wheel, has the roughly the same tooth of tooth with described movable blade ability to speak wheel on it.
7. electric cable cutter as claimed in claim 1 is characterized in that: be provided with a protector on the described fixedly edge of a knife, so that when the described fixedly edge of a knife damaged, its fragment can not disperse.
8. electric cable cutter as claimed in claim 1 is characterized in that: described shift bar is used to handle described switch, and it is connected in the outer surface of described shell, and a dog that can insert in the described shell upper recess is arranged on the described latch buttons; Also comprise a spring:
By handling described shift bar, described switch can be at a forward or the described movable edge of a knife of a reverse drive;
When depressing described latch buttons, described dog can be thrown off from described recess, and described shift bar can drive the direction motion of described switch;
When unclamping described latch buttons, described dog enters described recess, and prevents that described switch is operated.
9. electric cable cutter as claimed in claim 1 is characterized in that: a dustproof brush is connected in the opening on the described shell, to cover the described opening and the described movable edge of a knife of cleaning.
10. electric cable cutter as claimed in claim 9 is characterized in that: described dustproof brush comprises the installation plate of a polyacetals and is arranged on animal wool on the described installation plate.
11. electric cable cutter as claimed in claim 1 is characterized in that: two fixedly the edge of a knife be fixed on the described planetary reduction gear with a predetermined gap, and described two fixedly the edge of a knife be no blade; The described movable edge of a knife is bearing on the described fixedly edge of a knife pivotly, fixedly moves between the edge of a knife at described two with activation.
12. electric cable cutter as claimed in claim 11 is characterized in that: first edge of a knife of the described movable edge of a knife is straight.
13. electric cable cutter as claimed in claim 1, it is characterized in that: with the described movable edge of a knife with fixedly the area of the relative counteractive part of the part that acts on mutually of the edge of a knife is sufficiently big, so that when the cutting cable, the distance that axle one is scheduled to is left in the described fixedly edge of a knife and the contacted position of movable edge of a knife reaction part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96102293A CN1093028C (en) | 1996-06-12 | 1996-06-12 | Electric cable cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96102293A CN1093028C (en) | 1996-06-12 | 1996-06-12 | Electric cable cutter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1167668A CN1167668A (en) | 1997-12-17 |
| CN1093028C true CN1093028C (en) | 2002-10-23 |
Family
ID=5117484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96102293A Expired - Lifetime CN1093028C (en) | 1996-06-12 | 1996-06-12 | Electric cable cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1093028C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI472417B (en) * | 2014-01-13 | 2015-02-11 |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7293362B2 (en) * | 2003-10-20 | 2007-11-13 | Ideal Industries, Inc. | Drill powered cable cutter |
| CN102672079A (en) * | 2012-06-15 | 2012-09-19 | 王军 | Metal wire shearing machine |
| CN104308044A (en) * | 2014-10-13 | 2015-01-28 | 金陵科技学院 | Steel rope cutter |
| CN105057510B (en) * | 2015-07-16 | 2019-01-08 | 浙江品创知识产权服务有限公司 | A kind of cable shear |
| CN105458129A (en) * | 2016-01-25 | 2016-04-06 | 庞万工具公司 | Handheld electric cable shear |
| JP6895312B2 (en) * | 2016-05-24 | 2021-06-30 | マクセル株式会社 | Electric tool |
| CN106253130B (en) * | 2016-08-01 | 2017-09-05 | 王文康 | A kind of electronic bolt clipper |
| CN110247332A (en) * | 2019-04-03 | 2019-09-17 | 国网浙江省电力有限公司衢州供电公司 | Electric wrench shear |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4644650A (en) * | 1984-12-14 | 1987-02-24 | Friedrich-Gunther Laux | Manually operated cutting tool |
| US5067240A (en) * | 1991-05-30 | 1991-11-26 | You Yen Jen | Cutter for cable, plastic pipe or the like |
| US5184404A (en) * | 1992-06-01 | 1993-02-09 | Chen Ching Jen | Wire cutter |
-
1996
- 1996-06-12 CN CN96102293A patent/CN1093028C/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4644650A (en) * | 1984-12-14 | 1987-02-24 | Friedrich-Gunther Laux | Manually operated cutting tool |
| US5067240A (en) * | 1991-05-30 | 1991-11-26 | You Yen Jen | Cutter for cable, plastic pipe or the like |
| US5184404A (en) * | 1992-06-01 | 1993-02-09 | Chen Ching Jen | Wire cutter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI472417B (en) * | 2014-01-13 | 2015-02-11 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1167668A (en) | 1997-12-17 |
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