CN101152704A - Tension/release mechanism for belt sander - Google Patents
Tension/release mechanism for belt sander Download PDFInfo
- Publication number
- CN101152704A CN101152704A CNA2007101302583A CN200710130258A CN101152704A CN 101152704 A CN101152704 A CN 101152704A CN A2007101302583 A CNA2007101302583 A CN A2007101302583A CN 200710130258 A CN200710130258 A CN 200710130258A CN 101152704 A CN101152704 A CN 101152704A
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- arm
- support member
- resinder
- roller
- mechanism according
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/18—Accessories
- B24B21/20—Accessories for controlling or adjusting the tracking or the tension of the grinding belt
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
- B24B23/06—Portable grinding machines, e.g. hand-guided; Accessories therefor with abrasive belts, e.g. with endless travelling belts; Accessories therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
Abstract
A belt sander (10) includes a mechanism (18,100) to apply and release tension to the roll of sandpaper used in the sander. A release arm (20,120) is rigidly connected to a rotational member (30,132) that is engageable with a support member (50,170) that is operatively connected to the front roller (60) of the sander. The rotational member is designed such that the rotation of the tension release arm creates longitudinal motion of the front roller to apply and remove tension from the endless roll of sandpaper to allow the user to selectively replace the roll of sandpaper.
Description
Technical field
The present invention relates to a kind of hand-held belt grinding device, described device has the mechanism that sandpaper strip is applied and discharges tension force, thereby is convenient to change sandpaper strip.
Background technology
Hand-held resinder is generally used in the timber process operation, for example polish coarse plate, tangent plane etc.Except timber processing, resinder also uses when processing plastic and metal, and particularly useful aspect assistance removal rust, paint or spot.
A lot of current hand-held resinders have two drum-like cylinder or roller, and one of them is by the motor-driven that is contained in the milling tools.Sandpaper strip is surperficial as polishing, and is contained in the resinder around the outer surface of two rollers.The roller that mechanism is used for not connecting the resinder motor supports forward or towards instrument the place ahead, to apply tension force in the abrasive band.When making the abrasive band begin high-speed motion by the roller rotation of motor-driven back, the tension force that acts on the abrasive band will keep abrasive band stability.
A kind of resinder need be provided, and it has the improved mechanism that applies and remove abrasive band tension force.
Summary of the invention
One aspect of the present invention provides a kind of resinder with tension/release mechanism or locking mechanism, is used to apply and discharge the tension force in abrasive band.Usually, resinder has the parts of traditional belt sanding device, comprises more than half housing of forming the sanding machine outer surface, by the motor internal and a cover roller of power drives, one of them roller forwardly, second roller is positioned near the rear portion.Described back roller is by motor-driven.Described preliminary roller uses tension/release mechanism according to the present invention to be connected to sanding machine.
The present invention includes the release arm that is connected to revolving part.Described revolving part engages the part of support member, thereby when the user rotated release arm, the revolving part rotation was so that support member is towards the linear movement of sanding machine rear portion.The front end of described support member is connected to preliminary roller, thereby preliminary roller moves towards the sanding machine rear portion simultaneously.The tension force that is wrapped in the coated abrasive roll on preliminary roller and the back roller is eliminated in this motion, makes the user can change coated abrasive roll.After the user changed coated abrasive roll, the user rotated to release arm normal position or tension position under the assistance of internal bias voltage spring force.The rotation of release arm causes travelling forward of rotation that revolving part is similar but opposite and support member, and it applies tension force to coated abrasive roll, so that sanding machine can be worked.
In first aspect, the invention provides a kind of locking mechanism that is used for resinder, this locking mechanism has pair of rolls, this pair roller limits the plane that sand paper is advanced, comprise that (a) can wind the arm perpendicular to the axis rotation of sand paper running face, the revolving part of an end of engaging arms when (b) working, (c) support member, described support member has first end that engages revolving part and second end that is connected to first roller, so that the rotation of arm changes the distance between first roller and second roller.
Preferably, described arm has first end and second end, and described first termination is closed revolving part, and the orientation of described second end makes along the axis of the second end length and is basically perpendicular to along the axis of the first end length orientation.Described support member can be by spring towards the preliminary roller bias voltage.Maintaining body can be provided, overcome acting force of the spring and make coated abrasive roll from position that sanding machine unloads thereby first roller remained on.
Double pointed nail when arm and revolving part can be worked.Revolving part can be a pinion, and support member comprises and corresponding a plurality of teeth of a plurality of teeth on the pinion.
As selection, revolving part can be a lobe plate, and support member comprises recess, described recess have can the engages male wheel plate sidewall.
In one embodiment, cam and revolving part can form parts.
In yet another aspect, the invention provides a kind of resinder, this sanding machine has the mechanism that can unload and change coated abrasive roll, this sanding machine comprises the support member with first end and second end, wherein first end has the groove that cooperates with the tooth that forms on the pinion, is connected to first roller during work of second end; And arm, described arm can be around first rotation, and described first is basically perpendicular to second, and first roller is around described second rotation, and described arm is fixed on the pinion, with rotary pinion optionally.
Hook can be provided, overcome acting force of the spring and make the coated abrasive roll can be from the position that sanding machine unloads so that first roller is remained on.
In yet another aspect, the invention provides a kind of mechanism, the coated abrasive roll of thinking resinder applies and discharges tension force, this mechanism comprises (a) first roller and second roller, (b) can rotate to the arm of off-position from tension position, be connected to the lobe plate of described arm when (c) working, described lobe plate has plane and at least one flexure plane, the end of described flexure plane and plane terminal tangent, and (d) support member, described support member is formed with at least one planomural, the planomural of this planomural engages male wheel plate when handle is in tension position, and during present dynasty's off-position swing handle, this planomural forms to roll with the flexure plane of lobe plate and contacts, and wherein the rotation of arm causes that support member moves along the longitudinal axis of support member is linear.
Described lobe plate can also comprise second plane, the end on described second plane and flexure plane second terminal tangent, and wherein when arm is in the off-position, second plane is parallel with the planomural of support member and contact the planomural of support member.
Description of drawings
Fig. 1 is the perspective view of resinder, and expression is in the tension/release mechanism of tension position;
Fig. 2 is the resinder of Fig. 1, wherein represents first embodiment of tension/release mechanism with exploded view;
Fig. 3 is the perspective view of resinder, and expression is in the tension/release mechanism of off-position;
Fig. 4 is the perspective view of the hook of resinder;
Fig. 5 is the exploded view of the another kind of embodiment of tension/release mechanism;
Fig. 6 is the perspective view of support member;
Fig. 7 is lobe plate and the idler arm vertical view at tension position;
Fig. 8 is lobe plate and the idler arm vertical view in the off-position;
Fig. 9 is the exploded view of the another kind of embodiment of tension/release mechanism.
The specific embodiment
Referring now to Fig. 1 to 4,, resinder 10 has the tension/release mechanism 18 that is used to adjust and discharge abrasive band tension force.Resinder 10 generally has the parts of traditional belt grinding device.Therefore, resinder 10 comprises housing 12, and typically, housing 12 is made of two parts, and described housing 12 forms outer surface more than half of sanding machines 10; And the motor internal (not shown) that drives by power supply (not shown).As known in the field, the power that drives resinder 10 can be provided by AC power supplies or DC power supply, for example rechargeable battery.Resinder 10 comprises preliminary roller 60 and back roller 14.Back roller 14 is usually by motor-driven.Preliminary roller 60 utilizes tension/release mechanism 18 to be connected to resinder 10.Preliminary roller 60 is around axle 60a rotation, and back roller 14 rotates around axle 14a.
Tension/release mechanism 18 comprises release arm 20, and release arm 20 is rotatably connected to resinder 10 and can be rotated by the user, thereby the sandpaper strip of ring-type is optionally applied and remove tension force.The band release arm engages pinion 30 when working by non-circular pins 28.Pinion 30 engagement support members outstanding 52 on corresponding rack tooth 51, described support member finally with 60 rotatable connections of preliminary roller.
Release arm 20 can be basically parallel to the tension position (shown in Figure 1) of resinder side from arm around axle 20a, rotates to the off-position (shown in Figure 3) that arm is basically perpendicular to resinder 10 sides.Release arm 20 has three parts: be connected to the first 23 of other parts of tension/release mechanism 18, core 22 and the second portion 21 that forms the handle of operating mechanism 18 for the user.Release arm 20 can be rotated by the user, thereby makes the revolving part rotation, and for example pinion 30.
In the embodiment shown in Fig. 1 and 2, form the first 23 of release arm 20, to hold two claws (finger) 29.These claws 29 divide 22 to stretch out from central division, and its shape makes and have discontinuous space between the claw 29, and as shown in Figure 2, this space is enough to hold relative translation campaign small between pinion 30, gear hub 40 and release arm 20 and the pinion 30.Claw 29 is connected to pinion 30, so that there is not relative rotary motion between the two.As shown in Figure 2, each claw 29 has " D " shape hole 24, makes each hole 24 have the identical central line, and is formed with identical " D " shape direction.In another embodiment, can form arm 20 and pinion 30, they are made by parts, make this parts, so that these parts comprise the gear teeth 31 with pinion 30 size a part and as the part of arm 20, wherein the latter comprises core 22 and forms the second portion 21 of handle.
The core 22 of release arm 20 and second portion 21 have multiple possible shape and size.Preferably, shaping core 22 makes core 22 obviously be thinner than distance between two flat outer surfaces of first 23 of release arm 20, and the bottom surface of core 22 is flushed with the bottom surface of first 23.This shape has reduced materials demand, has reduced the weight of resinder 10.The more important thing is, be designed to the second portion 21 that the user handles release arm the space is provided, so that mechanism is changed to the off-position from tension position.Preferably, the formation of second portion 21 makes along the line of second portion 21 length and is basically perpendicular to along the line of core 22 length.As illustrated in fig. 1 and 2, the second portion 21 of arm 20 (that is, towards sanding machine 10 tops) extension in the upward direction.Certainly, the second portion 21 of arm 20 can be arranged in a downward direction (that is, towards sand paper) extension.In other embodiments, handle 20 can basically form "T"-shaped, makes second portion 21 vertically be connected to core 22, and core 22 is divided second portion 21 equally substantially.
In embodiment shown in Figure 2, by using " D " shape pin 28 release arm 20 is connected to this mechanism, extend in " D " shape hole 24 that pin 28 passes in the claw 29 of release arm 20 firsts 23." D " shape pin 28 prevents arm 20 and sells any between 28 and freely rotate, is delivered to other object that is connected on the pin 28 with the moment of torsion with release arm 20.Certainly, one of ordinary skill in the art it should be understood that and can use the pin 28 (and the hole 32 in hole in the release arm 20 24 and the pinion 30) that prevents other structure in relative rotation between arm 20 and the pinion 30.Preferably, pin 28 and release arm 20 are connected to each other, to eliminate any relative translation campaign between the two.Embodiment shown in Figure 2 uses screw 27 relative release arm 20 steady pins 28, but also can use other method well known in the art.
Pinion 30 has " D " shape hole 32 that holds pin 28, is used for the moment of torsion in the pin 28 is delivered to pinion 30, so that pinion 30 rotations.Pinion 30 comprises along a plurality of teeth 31 of pinion 30 peripheries.Tooth 31 engagement of the pinion 30 corresponding rack tooth 51 on outstanding 52 that extends back, described outstanding 52 is parts of support member 50.
Pinion 30 and outstanding 52 is contained in the support housing 48.Spring 41 is positioned at support housing 48, and with support member 50 bias voltage forward, so that the abrasive band is applied tension force, resinder 10 is normally used.Use screw 11 or other bindiny mechanism well known in the art, support housing 48 is rigidly attached on the housing 12.As selection, support housing 48 can form the integration section of housing 12.
In embodiment shown in Figure 2, gear housing 40 is connected to support housing 48, thereby keeps gear teeth 51 engagements of pinion 30 and outstanding 52 in all positions of release arm 20.In addition, some pinions 30 can not have tooth 31 at the whole periphery of gear, thereby when mechanism is in tension position, the outstanding 52 engaging tooth gear teeth and can under the biasing force forward of spring 41, freely apply tension force not to the abrasive band.Gear housing 40 has semicircular side 44, and its radius is slightly larger than the radius of the gear teeth 31 of pinion 30.Gear housing 40 preferably has end face and bottom surface, and its end face and bottom surface around pinion 30 forms enveloping surface.The end face 71 of gear housing 40 and bottom surface (not shown) all have the hole, and these holes have identical center line with hole in the pinion 30.Hole in the gear housing 40 is greater than the size of pin 28, so that arm 20 and pinion 30 freely rotate.In addition, gear housing 40 has flange 42 or similarly outstanding, this flange 42 or outstanding stretch out from the two ends of semicircle side 44, make gear housing 40 be rigidly connected to the outer wall of support housing 48, thereby, keep all parts of tension/release mechanism 18 to be in their correct orientation relative to each other in all positions of release arm 20.In other of tension/release mechanism 18 may embodiment, release arm 20 and pinion 30 were formed by same parts.
Support member 50 has three parts: core 54, roller support arm 56 and outstanding 52, described outstanding 52 divide 54 ends to stretch out with vertical backward from central division.Roller support arm 56 divides 54 end relatively vertically to stretch out from central division.Three parts of all of support arm 50 are along identical horizontal plane orientation.Understandable as persons skilled in the art, the roller support section 56 of support arm 50 comprises the appropriate configuration of rotatable support preliminary roller 60.
When operation, user (from resinder 10 tops) in the counterclockwise direction rotates at 10 the place aheads release arm 20 from tension position towards sanding machine, thereby discharges the tension force in the sandpaper strip (not shown), so that change the abrasive band.The rotating shaft of release arm 20 is perpendicular to the plane that forms along sand paper roller bottom surface.The rotation of release arm 20 causes pinion 30 rotations.Because being connected with a joggle between the respective rack tooth 51 on pinion gear teeth 31 and outstanding 52, the rotation of pinion 30 impels support member 50 to overcome the active force of biasing spring 41 along the direction linear movement towards sanding machine 10 rear portions.This transverse movement of support member 50 causes preliminary roller 60 linear movement backwards, discharges the tension force in abrasive band, thereby can pull down the abrasive band.
When abundant cursor 20, when removing the tension force in abrasive band, release arm 20 fully is stabilized in the off-position by the hook in the tension/release mechanism 18 70, as shown in Figure 4.Gear housing 40 is formed with the wedge-shaped projection 72 of giving prominence to from the end face 71 of gear housing 40.Adjust wedge-shaped projection 72, make and handling release arm 20 when discharging the tension force in abrasive band, release arm 20 is crossed the inclined-plane 73 of wedge-shaped projection 72.After release arm was crossed the top edge 74 of wedge-shaped projection 72, release arm 20 was reduced to its starting altitude.The vertical plane 75 of wedge-shaped projection 72 prevents that release arm 20 from turning back to tension position.In other embodiments, hook 70 can be formed by known other structure of persons skilled in the art, includes but not limited to that spring loads.
After changing the abrasive band, the user can be by discharging release arm 20 and again band application is added tension force from wedge-shaped projection 72.When carrying out this step, the user upwards lifts release arm 20, makes its top edge of crossing wedge-shaped projection 72 74, and 73 moves down along the inclined-plane, up to arriving its normal height.After release arm 20 was crossed wedge-shaped projection 72, release arm 20 turned back to tension position under the assistance of biasing spring 41.The rotation of release arm 20 causes pinion 30 (when when resinder 10 is seen in the top) rotation along clockwise direction, and it makes support member 50 and preliminary roller 60 towards resinder 10 front end linear movements.This motion of preliminary roller 60 applies tension force to the abrasive band, thereby can work on workpiece.
Fig. 5 to 9 provides and represents the interchangeable embodiment of tension/release mechanism 100.Tension/release mechanism 100 comprises release lever 120; Revolving part, for example lobe plate 132, and described revolving part is connected to release lever 120 by camshaft 140; Idler arm 172 with recess 173 of engages male wheel plate 132.Idler arm 172 is connected to the support member 170 of rotatable location preliminary roller 60, and keeps and encapsulate the support housing that is connected 150 between lobe plate 132 and the idler arm 172.In addition, tension/release mechanism 100 comprises the spring 190 that is contained in the support housing 150, is used for bias voltage preliminary roller 60 forward, so that coated abrasive roll (not shown) is applied tension force.Be similar to above-mentioned first embodiment, can between tension position (being similar to shown in Figure 1) and off-position (being similar to shown in Figure 3), rotate release lever.
Can find out better that from Fig. 7 and 8 lobe plate 132 has flat side 133, at the tangent flexure plane 134 in the first terminal and flat side 133, and with flexure plane 134 second terminal tangent frontal planes 135.Preferably, frontal plane 135 is perpendicular to flat side 133.Frontal plane 135 is perpendicular to the second flat side 136, thereby two surfaces 135,136 form limit 136a.Lobe plate 132 comprises non-circular hole 137, is used to prevent lobe plate 132 and passes relatively rotating between the camshaft 140 that extends in hole 137.Hole 137 can be formed by any in relative rotation geometry that prevents relative camshaft 140.
As mentioned above, connect camshaft 140, so that camshaft 140 rotates with release lever 120, and the hole 137 that camshaft 140 is inserted in the lobe plates 132.Camshaft 140 comprise have with lobe plate 132 in hole 137 same sizes and the mating part 142 of shape so that mating part 142 patchholes 137, thereby prevent relatively rotating between camshaft 140 and the lobe plate 132.Camshaft 140 comprises the hole 144 that holds pin 127 in addition, is used to guarantee being connected between release lever 120 and the camshaft 140.As selection, can connect release lever 120 and camshaft 140, prevent to relatively rotate to use other structure, this is that persons skilled in the art are known.Camshaft 140 also is formed with the axle collar 146, stops on the described axle collar 146 formation support housings 150.
The recess 173 that lobe plate 132 engages in the idler arm 172, this is expression better in Fig. 6.Idler arm 172 is parts that first end from the core 182 of support member 170 extends back.Core 182 is basically perpendicular to idler arm 172.Support member also comprises roller support arm 184, and described roller support arm 184 divides 182 second terminal edge direction (being parallel to idler arm 172) extension forward from central division.Axle (not shown) by extend in the hole of passing in preliminary roller 60 and the roller support arm 184 185 perhaps uses other structure well known in the art, and roller support arm 184 is connected to preliminary roller 60, thereby rotatably supports preliminary roller 60.Be understandable that referring to Fig. 4, when idler arm 172 when instrument moves backward, preliminary roller 60 also moves backward along instrument, thereby discharges the tension force in the coated abrasive roll (not shown) that is wrapped between preliminary roller 60 and the back roller 14.
Recess 173 forms otch or pit in idler arm 172.Recess 173 comprises rear wall 174, front side wall 176 and center wall 175.In the sidewall 174,176 each and the associated end of center wall 175 form limit 174a, 176a, thereby form the oblique angle between each and the center wall 175 in the sidewall 174,176.In some embodiments, directed sidewall 174,176 is so that sidewall 174,176 is perpendicular to one another.Recess 173 comprises flat wall 177.
When the parts of assembling tension/release mechanism 100 (and when release lever 120 is in substantially as shown in Figure 1 tension position), the location of lobe plate 132 makes side 133,136 be parallel to rear wall 174 (as shown in Figure 7), thereby side 133 contact rear walls 174, the bottom surface of lobe plate 132 (not shown) leans against on the diapire 177.As what discuss below, release lever 120 can be rotated by the user.The formation rolling contacts between the contacting between the side 133 of this rear wall 174 of rotate eliminating idler arm 172 and lobe plate 132, and cause flexure plane 134 to engage sidewalls 174, flexure plane 134 and sidewall 174.After fully rotating release lever 120, the frontal plane 135 of lobe plate 132 and contact rear wall 174 parallel with rear wall 174 (as shown in Figure 8).
When frontal plane 135 contact rear walls 174, release lever 120 has arrived off-position (substantially as shown in Figure 3).Lobe plate 132 causes idler arm 172 motion backward in support housing 150 relative to the rotating of idler arm 172 (and the rolling between the rear wall 174 of the flexure plane 134 of lobe plate 132 and idler arm 172 contacts).This of idler arm 172 moves backward and causes roller support arm 184 (connecting idler arm 172 by core 182), thereby preliminary roller 60 moves in resinder 10 backward, and removed the tension force on the ring-type coated abrasive roll.
The spring of motion compresses backward 190 of idler arm 172 causes extra active force to be applied between the surface 174 of surface 135 on the lobe plate 132 and idler arm 172.The active force that these are formed on surface on the lobe plate 132 135 and rear wall 174 by spring 190, make release arm 121 (and make preliminary roller 60 remain on position backward, thereby can change the coated abrasive roll of ring-type) biasing force that overcomes spring 190 remains on off-position (substantially as shown in Figure 3), and do not need user's action.
As mentioned above, lobe plate 132 and idler arm 172 are supported and encapsulation by support housing 150.Support housing 150 comprises centre bore 156 that holds idler arm 172 and the lobe plate housing 160 that holds and encapsulate lobe plate 132.The support structure lobe plate 132 of support housing 150 and lobe plate housing 160 and idler arm 172 are to keep two cooperations between the parts.In addition, pack between the mating surface 178a of spring 190 on the rear end 178 of the rear end of support housing 150 and idler arm 172 in the centre bore 156 of support housing 150.Spring 190 is towards resinder 10 front end bias voltage idler arms 172, thus the tension force in the maintenance coated abrasive roll.At last, as mentioned above, camshaft 140 comprises the axle collar 146, and the described axle collar 146 makes lobe plate housing 160 form sealing, and camshaft 140 and lobe plate 132 insert in the support housing 150 at lobe plate housing 160.Support housing 150 comprises cover plate 154 in addition, and described cover plate 154 is connected to support housing in a conventional manner, and camshaft 140 and lobe plate 132 are remained in the support housing 150.
The core 122 of release lever 120 stretches out from mating part 123, and connects handle 121.Preferably, form core, catch handle 121 easily so that the user points.As shown in Figure 5, form core 122, make its bottom surface along with the identical plane, bottom of mating part 123 and handle 121.In addition, core 122 has relatively little thickness, being that the user points and reserves the space of catching handle 121 on core 122 tops.Handle 121 can have Any shape, so that handle 121 can be handled the rotation of release lever 120.As shown in Figure 5, handle 121 can vertical centre part 122 orientations, so that the user catches handle 121 easily and rotates release lever.In other embodiments, handle 20 can basically form "T"-shaped, and second portion 21 vertically is connected to core 22 simultaneously, and core 22 is divided second portion 21 substantially equally.
In some embodiments, tension/release mechanism 100 comprises brake and pit, is used for optionally release lever 120 being remained on tension position and prevent that release lever 120 from moving in resinder 10 runnings.Better as shown in Figure 9, the top claw 124 of mating part 123 comprises hole 206, and top claw 124 vertical orientations are passed in described hole 206, is used to hold along downward direction by the detent ball 202 of spring 204 bias voltages.Hole 206 forms through hole, and its first diameter is slightly less than the diameter of detent ball 202, so that the part of detent ball is outstanding by the bottom surface (not shown) of top claw 124, simultaneously detent ball 202 is remained in the top claw 124.Hole 206 is formed with the securing member that holds screw 209 or other type or the counter sink of device in addition, and detent ball 202 is remained in the hole 206.In addition, screw 209 keeps acting on the downward bias pressure on the detent ball 202, the part of the detent ball 202 of extending with the bottom surface that keeps passing top claw 124.
During use, the operation of tension/release mechanism 100 is as follows: in order to discharge the tension force in the coated abrasive roll, the user is 10 the place aheads (seeing it is in the counterclockwise direction from resinder 10 tops) rotation release lever 120 from tension position towards resinder.The turning cylinder of release lever 120 is perpendicular to the plane that forms along sand paper roller bottom surface.The lobe plate 132 that the rotation of release lever 120 causes engaging with the rear wall 174 of idler arm 172 rotates.Roll between the flexure plane 134 that the rotation of lobe plate 132 causes lobe plate 132 and the rear wall 174 of idler arm 172 and contact.This causes idler arm 172 (and the remaining part that is connected to the support member 170 of preliminary roller 60) to overcome the active force of biasing spring 190 along the direction linear movement towards resinder 10 rear portions.This of preliminary roller 60 moves backward and removes tension force on the coated abrasive roll, so that change.When release lever 120 rotates when spending near 90 relative to sanding machine, the frontal plane 135 of lobe plate 132 is parallel to rear wall 174.Frontal plane 135 contacts each other fully with rear wall 174.This compression spring 190 that rotatablely moves, generation is used for release lever 120 is remained on the off-position biasing force of (substantially as shown in Figure 3).When release lever 120 was in this position, preliminary roller 60 motion fully backward in sanding machine to discharge the tension force on the ring-type coated abrasive roll, can change it.
After changing coated abrasive roll, the user rotates release lever 120 towards tension position in opposite direction.When release lever 120 was applied sufficient moment of torsion, bar overcame the CONTACT WITH FRICTION between the rear wall 174 of the frontal plane 135 of lobe plate 132 and idler arm 172, rotates towards tension position.When rotating release lever 120, the flexure plane 134 of lobe plate rolls and contacts the rear wall 174 of idler arm 172, the remaining part and the preliminary roller 60 of its edge direction mobile idler arm 172, support member 170 in sanding machine forward, the tension force in recovering the ring-type coated abrasive roll.Be arranged in the embodiment of the recess 208 on release lever 120 and the cover plate 154 in detent ball 202, when release lever 120 arrives tension positions, detent ball 202 engagement recesses 208.
Therefore, top detailed description will be understood that it is indicative, rather than restrictive.And be understandable that claim comprises all equivalents, is used to limit scope of the present invention.
Claims (20)
1. locking mechanism that is used for resinder, described sanding machine has pair of rolls, and described roller limits the plane that sand paper is advanced, and described locking mechanism comprises:
(a) can wind arm perpendicular to the rotation of the axis of sand paper running face;
The revolving part of an end of engaging arms when (b) working;
(c) support member, described support member have first end and second end, and described first termination is closed revolving part, and described second end is connected to first roller, make the rotation of arm change distance between first roller and second roller.
2. locking mechanism according to claim 1, wherein said arm have first end and second end, and described first termination is closed revolving part, and the orientation of described second end makes along the axis of the second end length and is basically perpendicular to along the axis of the first end length orientation.
3. locking mechanism according to claim 1, wherein said support member by spring towards the preliminary roller bias voltage.
4. locking mechanism according to claim 1, double pointed nail when wherein said arm and revolving part work.
5. locking mechanism according to claim 3, wherein this locking mechanism also comprises maintaining body, overcomes acting force of the spring and makes coated abrasive roll from position that sanding machine unloads thereby first roller remained on.
6. locking mechanism according to claim 1, wherein said arm and revolving part form parts.
7. locking mechanism according to claim 1, wherein said revolving part is a pinion.
8. locking mechanism according to claim 7, wherein said support member comprise and corresponding a plurality of teeth of a plurality of teeth on the pinion.
9. locking mechanism according to claim 1, wherein said revolving part is a lobe plate.
10. locking mechanism according to claim 9, wherein said support member comprises recess, described recess have can the engages male wheel plate sidewall.
11. a resinder, described resinder have the mechanism that can unload and change coated abrasive roll, described resinder comprises:
Support member with first end and second end, wherein said first end have the groove that cooperates with the tooth that forms on the pinion, are connected to first roller during described second end work, and
Arm, described arm can be around first rotation, and first is basically perpendicular to second, and first roller is around second rotation, and described arm is fixed on the pinion, is used for optionally rotary pinion.
12. resinder according to claim 11, wherein said pinion and arm are formed by same parts.
13. resinder according to claim 11, wherein this resinder also comprises towards the spring of preliminary roller bias voltage support member.
14. resinder according to claim 11, wherein this resinder also comprises hook, and described hook is used for first roller remained on and overcomes acting force of the spring and make coated abrasive roll from position that sanding machine unloads.
15. a mechanism, this mechanism are used to the coated abrasive roll of resinder to apply and discharge tension force, described mechanism comprises:
(a) first roller and second roller;
(b) can rotate to the arm of off-position from tension position;
(c) lobe plate is connected to arm during the work of described lobe plate, and described lobe plate has plane and at least one flexure plane, and the end of described flexure plane and an end on plane are tangent; And
(d) support member, described support member has at least one planomural, when handle is in tension position, the planomural of described planomural engages male wheel plate, during present dynasty off-position swing handle, described planomural forms to roll with the flexure plane of lobe plate and contacts, and wherein the rotation of arm causes support member to move along the longitudinal axis of support member is linear.
16. mechanism according to claim 15, wherein this mechanism also comprises the support housing that is connected to resinder, and described support housing holds the first of lobe plate and support member.
17. mechanism according to claim 16, wherein this mechanism also comprises the spring in the support housing of packing into, and described spring is towards the front end bias voltage support member of resinder.
18. mechanism according to claim 17, wherein said arm is connected by camshaft with lobe plate.
19. mechanism according to claim 15, wherein said arm and lobe plate are formed by same parts.
20. mechanism according to claim 15, wherein said lobe plate also comprises second plane, end on described second plane and flexure plane second terminal tangent, wherein when arm is in the off-position, second plane is parallel with the planomural of support member and contact the planomural of support member.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US52877706A | 2006-09-28 | 2006-09-28 | |
| US11/528,777 | 2006-09-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101152704A true CN101152704A (en) | 2008-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101302583A Pending CN101152704A (en) | 2006-09-28 | 2007-07-17 | Tension/release mechanism for belt sander |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20080081544A1 (en) |
| EP (1) | EP1905541B1 (en) |
| CN (1) | CN101152704A (en) |
| AT (1) | ATE473839T1 (en) |
| AU (1) | AU2007202266A1 (en) |
| DE (1) | DE602007007700D1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102873621A (en) * | 2012-10-16 | 2013-01-16 | 陈美青 | Sand belt tensioning device for belt sander |
| CN104369070A (en) * | 2014-11-06 | 2015-02-25 | 宁波文凯研磨工具有限公司 | Manual wedged sander with abrasive cloth quick replacement function |
| CN109262460A (en) * | 2018-09-10 | 2019-01-25 | 温州市华炜鞋材科技有限公司 | A kind of shoe tree polishing grinding wheel quick replacement device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010262338A (en) * | 2009-04-30 | 2010-11-18 | Fujitsu Ltd | Device, method and program for processing electromagnetic distribution |
| CN117884998B (en) * | 2024-03-14 | 2024-05-17 | 山西宏坊电力金具制造有限公司 | Hardware fitting machining polishing jig, polishing machine and use method of polishing machine |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2260949A (en) * | 1939-06-09 | 1941-10-28 | Mall Arthur William | Portable belt sander |
| FR2505236A1 (en) | 1981-05-08 | 1982-11-12 | Faure Jean | Tension adjuster for endless abrasive belt - uses cam rotated by offset handle to retract spring piston supporting driven roller |
| US4574531A (en) * | 1985-04-26 | 1986-03-11 | The Singer Company | Self correcting belt tracking mechanism |
| DE3731157A1 (en) * | 1987-09-17 | 1989-03-30 | Diebold Helmut Werkzeug Masch | Tensioning and guiding device for the grinding belt of a belt-grinding machine |
| US4896462A (en) * | 1988-06-27 | 1990-01-30 | Milwaukee Electric Tool Corporation | Mechanism for belt sanders |
| US5007205A (en) * | 1988-06-27 | 1991-04-16 | Milwaukee Electric Tool Corporation | Tensioner release and mechanism for belt sanders |
| US5185962A (en) * | 1991-12-12 | 1993-02-16 | John Liou | Belt roller adjustment device of belt sander |
| TW485857U (en) * | 2001-04-12 | 2002-05-01 | Shang-Zhang Liu | Adjustment device for emery belt of emery belt machine |
| US7410412B2 (en) * | 2005-01-21 | 2008-08-12 | Black & Decker Inc. | Belt sander |
| US7052381B1 (en) * | 2005-03-15 | 2006-05-30 | Mao Shan Machinery Industrial Co., Ltd. | Belt sander having tension adjustment mechanism |
| AU2005100350A4 (en) * | 2005-04-26 | 2005-05-19 | Mao Shan Machinery Industrial Co., Ltd. | Belt sander having sand belt replacement apparatus |
-
2007
- 2007-05-21 AU AU2007202266A patent/AU2007202266A1/en not_active Abandoned
- 2007-06-08 AT AT07252306T patent/ATE473839T1/en not_active IP Right Cessation
- 2007-06-08 DE DE602007007700T patent/DE602007007700D1/en active Active
- 2007-06-08 EP EP07252306A patent/EP1905541B1/en not_active Not-in-force
- 2007-07-17 CN CNA2007101302583A patent/CN101152704A/en active Pending
- 2007-10-30 US US11/929,352 patent/US20080081544A1/en not_active Abandoned
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102873621A (en) * | 2012-10-16 | 2013-01-16 | 陈美青 | Sand belt tensioning device for belt sander |
| CN102873621B (en) * | 2012-10-16 | 2015-07-15 | 陈美青 | Sand belt tensioning device for belt sander |
| CN104369070A (en) * | 2014-11-06 | 2015-02-25 | 宁波文凯研磨工具有限公司 | Manual wedged sander with abrasive cloth quick replacement function |
| CN104369070B (en) * | 2014-11-06 | 2016-11-23 | 宁波文凯研磨工具有限公司 | A kind of manual wedge shape sander of quick-replaceable emery cloth |
| CN109262460A (en) * | 2018-09-10 | 2019-01-25 | 温州市华炜鞋材科技有限公司 | A kind of shoe tree polishing grinding wheel quick replacement device |
| CN109262460B (en) * | 2018-09-10 | 2023-12-12 | 温州市华炜鞋材科技有限公司 | Shoe tree grinding wheel quick replacement device |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1905541A1 (en) | 2008-04-02 |
| US20080081544A1 (en) | 2008-04-03 |
| ATE473839T1 (en) | 2010-07-15 |
| EP1905541B1 (en) | 2010-07-14 |
| AU2007202266A1 (en) | 2008-04-17 |
| DE602007007700D1 (en) | 2010-08-26 |
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| ASS | Succession or assignment of patent right |
Owner name: TECHTRONIC MOTOR TOOLS TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: TECHTRONIC INDUSTRY CO., LTD. Effective date: 20100608 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Free format text: CORRECT: ADDRESS; FROM: FLOOR 24, CHINA DYEING HOLDIND BUILDING, NO.388, CASTLE PEAK ROAD, TSUEN WAN DISTRICT, HONGKONG, CHINA TO: TORTOLA, VIRGIN ISLANDS, THE UNITED KINGDOM |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20100608 Address after: The British Virgin Islands of Tortola Applicant after: Techtronic Ind Co., Ltd. (VG) Address before: 24 floor, China dyeing factory building, 388 Castle Peak Road, Tsuen Wan, Hongkong, China Applicant before: Chuangke Industrial Co., Ltd. |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Open date: 20080402 |