CN1861316A

CN1861316A - Built-in type locking device for eye-protection cover of cutting machine

Info

Publication number: CN1861316A
Application number: CN 200510069138
Authority: CN
Inventors: 廖宜得; 王信心
Original assignee: DUNFENG MECHANICAL INDUSTRY Co Ltd
Current assignee: DUNFENG MECHANICAL INDUSTRY Co Ltd
Priority date: 2005-05-11
Filing date: 2005-05-11
Publication date: 2006-11-15
Anticipated expiration: 2025-05-11
Also published as: CN100411811C

Abstract

A hidden locking unit for the eye protecting cover of cut-off machine consisting of sawing body, eye-protecting cover and handle unit is composed of a hand driving unit hidden is said handle unit and with a linking rod and an exposed press part, and a barrier unit with one end connected to said linking rod and another rod able to be inserted in said sawing body for locking the eye protecting cover.

Description

The built-in type locking device of eye-protection cover of cutting machine

Technical field

The present invention relates to a kind of cutting machine, particularly relates to the built-in type locking device that the eye-protection cover of cutting machine of the convenient effect of operation is simplified and had to a kind of member.

Background technology

Referring to shown in Figure 1, general cutting machine mainly has a sawing body 1, a saw blade 2 that is located at sawing body 1 inside, and one be set on the sawing body 1 can be to the eye-protection cover 3 of saw blade 2 shieldings, this sawing body 1 is provided with a trace group (figure does not show) in side edge and links to each other with eye-protection cover 3, make sawing body 1 after pressing down, eye-protection cover 3 is subjected to the trace group and drives to be turned to lift and open, saw blade 2 is exposed and carry out sawing work, cause danger in order to allow sawing body 1 can saw blade 2 not exposed, in a side edge of sawing body 1 blocking device 10 that can have the block effect to eye-protection cover 3 can be set usually because mistake is pressed.

Simultaneously referring to shown in Figure 2, this blocking device 10 has a holder 11 that is installed in sawing body 1 side edge, pivot is at the handle member 12 in 11 1 side weeks of holder, one is embedded the elastic component 13 that spring-go power is provided on handle member 12, the moving part 14 that pivot contacted as interlock with handle member 12 in holder 11 opposite sides week, and one be socketed in the retainer component 15 that moving part 14 ends can extend into sawing body 1 inside, this eye-protection cover 3 has a shrinkage pool 301 in predetermined locations, but this retainer component 15 has 151 sleeve of pulling goes in this shrinkage pool 301, can stop the action that turns to lift of eye-protection cover 3 whereby, because sawing body 1 is reached interlock with trace group and eye-protection cover 3, eye-protection cover 3 is under the situation that can't turn to lift, whole jointly sawing body 1 also can't press down, reach the function of safety interlocking whereby, when the operator will normally carry out the sawing action, to push this retainer component 15 displacement laterally of these handle member 12 starts earlier, pulling 151 can make eye-protection cover 3 free movable after eye-protection cover 3 shrinkage pools 301 break away from, and this sawing body 1 just can normally press down sawing work.

Above-mentioned blocking device 10 has the locking effect to eye-protection cover 3 really; need improved place but still have in the use; usually this sawing body 1 also can connect leader unit (figure does not show) in side edge; mainly provide to operator's hand and grip; press down the sawing action so as to operation sawing body 1; yet pressing down before the sawing action; must remove the blocking of 10 pairs of eye-protection covers 3 of this blocking device earlier; because blocking device 10 is two members that independently separate with handle unit; when therefore the operator will carry out the sawing action at every turn; usually want to push earlier on the other hand the handle member 12 of blocking device 10; other hand holds handle unit manipulation sawing body 1 again presses down; whole action needs both hands just can finish; quite inconvenient in the use; and this action can't be accomplished without any letup; service speed is slow; be not inconsistent high efficiency work requirements; in addition; these blocking device 10 outer sawing body 1 outsides that are exposed at; owing to produce the chip flying dust through regular meeting in the work on the spot environment; this blocking device 10 is sheltered evil people and countenance evil practices easily, if not often cleaning, blocking device 10 may cause operating clamping stagnation and have some setbacks because of incrustation.

Summary of the invention

The object of the invention is to provide a kind of member to simplify and have the built-in type locking device of the eye-protection cover of cutting machine of the convenient effect of operation.

The invention provides a kind of built-in type locking device of eye-protection cover of cutting machine, this cutting machine has a base, one is articulated in the sawing body that can swing up and down behind the base, one is fixed in the handle unit of sawing body side edge, and one be located at the sawing body interior and can turn to lift the eye-protection cover of opening, it is characterized in that: this blocking device includes stirs a unit and a stopper unit, this stirs the built-in inner pre-position of handle unit that is arranged on, unit, have an end axis and be located at the trace that to swing shape on the handle unit, one can make the elastic component of butted answer to trace, and one be fixed in trace side edge and the protruding pressing piece that exposes the handle unit outside, this trace convexes with the upstanding flange of an extended handle unit bottom side downwards, this stopper unit is located in sawing body side pre-position, have one with trace upstanding flange in succession connecting end mutually, and one can stretch into lock that the sawing body interior makes block to the eye-protection cover end of pulling.

The main effect of the present invention is to be located in the handle unit stirring the Tibetan, unit, in order to drive stopper unit eye-protection cover is made the switching lock, reaches the result of use of member simplification and convenient operation whereby.

Description of drawings

The present invention is described in detail below in conjunction with drawings and Examples:

Fig. 1 is the constitutional diagram of general eye-protection cover of cutting machine blocking device;

Fig. 2 is the assembled sectional view of above-mentioned blocking device;

Fig. 3 is the constitutional diagram of built-in type locking device one preferred embodiment of eye-protection cover of cutting machine of the present invention, illustrates that this cutting machine has a sawing body, leader unit and an eye-protection cover;

Fig. 4 is the exploded perspective view of above-mentioned preferred embodiment, illustrates that the present invention includes to stir a unit and a stopper unit;

Fig. 5 is the combination view of above-mentioned preferred embodiment, illustrates that this stirs the unit and be arranged on situation in the handle unit;

Fig. 6 is the assembled sectional view of above-mentioned preferred embodiment, and illustrating that this stopper unit is arranged on can be to the situation of eye-protection cover blocking in the sawing body;

Fig. 7 is the action diagram of above-mentioned preferred embodiment, illustrates after stirring unit one pressing piece and pushing, and can drive the situation of a trace beat;

Fig. 8 is the action diagram of above-mentioned preferred embodiment, this trace beat is described after, can drive the situation that stopper unit axostylus axostyle and eye-protection cover break away from.

The specific embodiment

Aforementioned and other technology contents, characteristics and effect about the present invention, can clearly present with reference in the detailed description of a graphic preferred embodiment in following cooperation.

Referring to shown in Figure 3, the built-in type locking device of eye-protection cover of cutting machine of the present invention is in a preferred embodiment, these cutting machine 20 structures are similar to tradition haply, mainly be can be for the base 21 of place work piece by one, one is articulated in the sawing body 22 that place, base 21 rears can swing up and down, one is fixed in the motor 23 and the handle unit 30 of sawing body 22 top side edge, one is located at sawing body 22 inside and can accepts the saw blade 24 that motor 23 turns, and one be located at the eye-protection covers 25 that can do shielding in the sawing body 22 to saw blade 24, this handle unit 30 is available for users to the hand gripping and then drives sawing body 22 press down, this moment, this eye-protection cover 25 was subjected to a linkage (figure does not show) drive, can move and up turn to lift and open along with sawing body 22 presses down, saw blade 24 be exposed and workpiece is carried out the sawing action.

Referring to Fig. 4 and shown in Figure 5, characteristics of the present invention are that cutting machine 20 is provided with a blocking device, this blocking device mainly stirs unit 40 by one and a stopper unit 50 is formed, then, and after the more above-mentioned main composition member of the present invention and combination kenel thereof being specified in.

These sawing body 22 outer side edges have one near the position of handle unit 30 and are the step shape cylinder 221 that extend horizontally away, and the centre of these cylinder 221 end faces is equipped with a cylindrical hole 2211 that is step shape.

This handle unit 30 is by a upper shell 301 (seeing Fig. 3) and 302 involutory compositions an of lower house, wherein, place, outside, lower house 302 left sides offers a button slotted eye 31, place, base, left side offers a rectangle open-work 32, and lower house 302 inside left rears places is protruding with the post 33 that is coupling, lie across near the anterior position place of button slotted eye 31 and to be formed with a stopping rib 34, these stopping rib 34 upper limbs have a

horizontal guide edge

341, and 34 of stopping ribs more are concaved with a breach 342 at guide edge 341 left hand corner end places.

This stirs the 40 built-in handle unit 30 inner pre-positions that are arranged on, unit, mainly be by a trace 41, one elastic component 42, one spacer sleeve 43, one pad 44, one screw 45 and a pressing piece 46 are formed, these trace 41 rearward end have an axis hole 411, these spacer sleeve 43 pads are located at place, trace 41 axis holes 411 belows, has a bulge loop 431 that can supply axis hole 411 to be inserted in the middle of it, this spacer sleeve 43 is goods of powder metallurgy, material characteristic with abrasion performance, the effect of similar bearing can be provided trace 41, these pad 44 horizontal are above trace 41 axis holes 411 and support to end in spacer sleeve 43 bulge loops 431 ends, after this screw 45 passes pad 44 and spacer sleeve 43, but interlocking is on the post 33 that is coupling of lower house 302, so this trace 41 can be that move do swing in the axle center with this post 33 that is coupling, this elastic component 42 is a kind of torsionspring, can be set on this post 33 that is coupling, the one end supports and ends on lower house 302 inwall ribs, end then supports and ends at trace 41 edges in addition, provide trace 41 to have the spring-go power of rotating towards left direction, this trace 41 is positioned at the middle section position place and extends downwards a upright flange 412 is arranged, this upstanding flange 412 handle unit 30 outsides that can stretch through out by the rectangle open-work 32 of lower house 302, upstanding flange 412 bottoms have more a jack hole 413, trace 41 front end right edge places have a horizontal flanges 414, this horizontal flanges 414 can be resisted against on the guide edge 341 of lower house 302 stopping ribs 34, this trace 41 can be accepted stopping rib 34 guiding and successfully carries out horizontal cross and move whereby, these pressing piece 46 inboards have a socket end 461, can be for being fixed in trace 41 front ends left side side edge, pressing piece 46 outsides have a press surface 462, this press surface 462 can be exposed to handle unit 30 outsides from button slotted eye 31, push for user's hand, in addition, the height and position of this socket end 461 just is right against the position of stopping rib 34 breach 342.

Referring to Fig. 4 and shown in Figure 6, this stopper unit 50 includes an axostylus axostyle 51, one compression spring 52, one pad 53 and a spacer pin 54, this axostylus axostyle 51 is the round bar bodies that are long straight shape, can penetrate in the cylindrical hole 2211 of cylinder 221 by sawing body 22 inboards, its end that stretches through out cylinder 221 outsides has the connecting end 511 in roundlet footpath, offer a pin-and-hole 512 on this connecting end 511, this connecting end 511 can be stretched by the jack hole 413 of trace 41 upstanding flanges 412, this pad 53 is inserted on the connecting end 511, spacer pin 54 interts behind the pin-and-hole 512, only just can supporting, pad 53 can't break away from so as to restriction connecting end 511, make axostylus axostyle 51 and trace 41 can reach the interlock shape that joins between the two, the lock that these axostylus axostyle 51 inboard ends have a big external diameter is pulled and is held 513, this compression spring 52 is nested with in cylindrical hole 2211 inside and can does butted to the lock end 513 of pulling, provide axostylus axostyle 51 to have the springing power that moves towards eye-protection cover 25 directions, make the lock end 513 of pulling to stretch into and form blocks in eye-protection cover 25 1 slotted eyes 251 and fix, this eye-protection cover 25 just can't turn to lift mobile, because sawing body 22 is relations of mutual interlock with eye-protection cover 25, eye-protection cover 25 can't turn to lift under the state, sawing body 22 can't be pressed down, reach the function of safety interlocking whereby.

More than be each the member shape of built-in type locking device of eye-protection cover of cutting machine of the present invention and the general introduction of interblock space kenel, then, again the effect statement that unlocking action of the present invention and expection can be reached as after:

Referring to Fig. 7 and shown in Figure 8, when the user confirms to carry out the sawing action, user's hand is held on the handle unit 30, can directly push this pressing piece 46 with thumb, can drive trace 41 after this pressing piece 46 is pressed into and do the beat rotation, pressing piece 46 is depressed into the end can allow socket end 461 arrive to stopping rib 34 breach 342, spacing whereby trace 41 swinging angles, can make this axostylus axostyle 51 of upstanding flange 412 drawings do a displacement to the right after trace 41 swings, this lock is pulled hold 513 slotted eyes 251 to spin off from eye-protection cover 25, under eye-protection cover 25 is not subjected to situation that axostylus axostyle 51 stops, can move and turn to lift and open along with sawing body 22 presses down, so just can normally carry out sawing and move.

In sum, the built-in type locking device of eye-protection cover of cutting machine of the present invention mainly is in order to solve the problem of general blocking device 10 usability, the technological means that the present invention adopts is to establish one in handle unit 30 inner Tibetan to stir unit 40, on sawing body 22, wear a stopper unit 50, this stirs unit 40 main compositions is a trace 41 and a pressing piece 46, these stopper unit 50 main compositions are axostylus axostyles 51, therefore integrated member of the present invention is quite simplified, can effectively save material and assembly cost, the present invention stirs unit 40 and is arranged in the handle unit 30, user's hand can directly be pushed this pressing piece 46, can control the state that this eye-protection cover 25 opens and closes lock fast, the quite smooth and easy facility of whole operation action, in addition, this stirs unit 40 owing to do not contact with the external world in the interior plant handle unit 30, can completely cut off outside flying dust chip and fall into, each member all can remain on the optimal operation state, and service life can be more permanent.

Claims

1. the built-in type locking device of an eye-protection cover of cutting machine, this cutting machine has a base, and is articulated in the sawing body, that can swing up and down behind the base and is fixed in the handle unit of sawing body side edge and one and is located at the sawing body interior and can turns to lift the eye-protection cover of opening, and it is characterized in that:

This blocking device includes stirs a unit and a stopper unit, this stirs the built-in inner pre-position of handle unit that is arranged on, unit, have an end axis and be located at the trace that to swing shape on the handle unit, one can make the elastic component of butted answer to trace, and one be fixed in trace side edge and the protruding pressing piece that exposes the handle unit outside, this trace convexes with the upstanding flange of an extended handle unit bottom side downwards, this stopper unit is located in sawing body side pre-position, have one with trace upstanding flange in succession connecting end mutually, and one can stretch into lock that the sawing body interior makes block to the eye-protection cover end of pulling.

2. the built-in type locking device of eye-protection cover of cutting machine as claimed in claim 1 is characterized in that: this handle unit is inner contiguously to be stirred the cell position place and has a stopping rib.

3. the built-in type locking device of eye-protection cover of cutting machine as claimed in claim 2 is characterized in that: this stopping rib upper limb has the guide edge that can guide the trace horizontal displacement.

4. the built-in type locking device of eye-protection cover of cutting machine as claimed in claim 2 is characterized in that: corner end place is concaved with one and can supports and end spacing breach for stirring the unit on this stopping rib.