CA1231530A - Method and apparatus for finishing surfaces - Google Patents
Method and apparatus for finishing surfacesInfo
- Publication number
- CA1231530A CA1231530A CA000454000A CA454000A CA1231530A CA 1231530 A CA1231530 A CA 1231530A CA 000454000 A CA000454000 A CA 000454000A CA 454000 A CA454000 A CA 454000A CA 1231530 A CA1231530 A CA 1231530A
- Authority
- CA
- Canada
- Prior art keywords
- sanding
- spindle
- friction
- axis
- revolution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- 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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
- B24B41/047—Grinding heads for working on plane surfaces
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Crushing And Grinding (AREA)
Abstract
A B S T R A C T
When sanding e.g. panel doors (12) in a machine, the doors are placed under six horizontal sanding spind-les (10) with sanding members (11) which partly rotate and partly are moved around a vertical driv-ing cylinder (19). The spindles (10) are mounted in such a way that they can be programmed to rotate in a given direction and in necessary be completely disengaged. This programming is done by placing cams (17, 18 and 23, 24) for engaging and disengaging the spindle (10) by vertical movement of a friction cone (8) on the spindle between an upper and a lower friction path (6, 7) on the side of the driving cylinder (19).
Hereby a perfect sanding is obtained as the doors (12) are engaged by the sanding threads from many different sides thus eliminating sanding traces.
Furthermore, the machine can be adjusted to the shape of the work piece, whereby it is possible to adapt the sanding operation individually according to the work piece and also to stop the sanding e.g. when the sanding members move across sharp edges on the work piece, said edges therefore remaining quite sharp as they are not exposed to any sanding.
(fig. 2)
When sanding e.g. panel doors (12) in a machine, the doors are placed under six horizontal sanding spind-les (10) with sanding members (11) which partly rotate and partly are moved around a vertical driv-ing cylinder (19). The spindles (10) are mounted in such a way that they can be programmed to rotate in a given direction and in necessary be completely disengaged. This programming is done by placing cams (17, 18 and 23, 24) for engaging and disengaging the spindle (10) by vertical movement of a friction cone (8) on the spindle between an upper and a lower friction path (6, 7) on the side of the driving cylinder (19).
Hereby a perfect sanding is obtained as the doors (12) are engaged by the sanding threads from many different sides thus eliminating sanding traces.
Furthermore, the machine can be adjusted to the shape of the work piece, whereby it is possible to adapt the sanding operation individually according to the work piece and also to stop the sanding e.g. when the sanding members move across sharp edges on the work piece, said edges therefore remaining quite sharp as they are not exposed to any sanding.
(fig. 2)
Description
~'~3~S3~) METHOD AND APPARATUS OR FINISHING SURFACES
1 The invention relates to a method for finishing sun-faces, e.g. sanding, polishing or the like of work pieces by means of rotating sanding members, as well as an apparatus for carrying out the method.
In the manufacture of profiled objects such as cup-board doors, louvered doors or the like, the surface should be sanded in order to give the surface the necessary finish. For this use portable polishing machines are known, which can be manually moved across the objects. This requires a certain skill to obtain a uniform result, just as coverings or the like must be made in order to protect exposed parts against rounding during the sanding. As mentioned, the work requires skill as well as long time to sand such objects and where mass production of uniform objects is in question, it is a very costly and laborious finishing process.
It is the object of the invention to remedy these deficiencies and this is achieved by a method where the work pieces are placed under a number of sanding members mounted on preferably horizontally borne, rotating spindles, which spindles are moved in a turning movement, making the sanding members describe a circular movement over the work pieces, at the same time as the spindles may rotate. Hereby a hitherto unknown degree of efficiency and quality is obtained as the rotating sanding members are moved in a air-cuter course over the work piece, which has the effect that the work pieces become quite uniformly finished as the sanding members engage from all sides. Hereby a completely uniform sanding result is ensured.
1 By letting the work pieces pass under the sanding spindle, e.g. by means of a conveyor belt, a con-tenuous finishing of the surface can take place in a rational way. By a suitable choice of sanding means, speed and tightening the desired quality and speed of production can be obtained.
By rotating the sanding members in various directions as disclosed in claim 2, it is possible by e.g. let tying adjacent spindles rotate in opposite directions to achieve a very smooth surface, which will show no sanding traces since an opposite finishing will take place all over the surface, as the work pieces are moved under the sanding members.
By being able to determine the direction of rotation as well as the engaging and disengaging of the rota-lion of the sanding members in predetermined places in the turning path of the spindles, as disclosed in claim 3, it will be possible to program the sanding so that it is possible to sand more or less carefully and in certain directions, and without sanding steep edges, terminal surfaces and the like so that the sans ding result is improved.
By mounting the spindles, as disclosed in claim I
it is possible by means of simple driving means to obtain a transfer of movement from a central rotating cylinder to the individual spindles, which transfer provides the possibility of bearing against either the upper or the lower friction ring, which deter-mines the direction of rotation of the spindle.
Finally, it is expedient, as disclosed in claim 53 to ~.~3~53(~
1 move the beddings of the spindles by means Or a cam, which may act on a maneuvering lever whereby eying-cement and disengagement as well as direction of rota-lion of the spindle may be programmed by a suitable location of cams.
The invention will be described further in the lot-lowing with reference to the drawing, wherein 0 fig. 1 shows an apparatus seen in the direction I-I in fig. 2, fig. 2 shows the same apparatus seen in the direction II-II in fig. 1, and fig. 3 shows another embodiment of an appear-tusk seen in the same direction as in fig.
1 The invention relates to a method for finishing sun-faces, e.g. sanding, polishing or the like of work pieces by means of rotating sanding members, as well as an apparatus for carrying out the method.
In the manufacture of profiled objects such as cup-board doors, louvered doors or the like, the surface should be sanded in order to give the surface the necessary finish. For this use portable polishing machines are known, which can be manually moved across the objects. This requires a certain skill to obtain a uniform result, just as coverings or the like must be made in order to protect exposed parts against rounding during the sanding. As mentioned, the work requires skill as well as long time to sand such objects and where mass production of uniform objects is in question, it is a very costly and laborious finishing process.
It is the object of the invention to remedy these deficiencies and this is achieved by a method where the work pieces are placed under a number of sanding members mounted on preferably horizontally borne, rotating spindles, which spindles are moved in a turning movement, making the sanding members describe a circular movement over the work pieces, at the same time as the spindles may rotate. Hereby a hitherto unknown degree of efficiency and quality is obtained as the rotating sanding members are moved in a air-cuter course over the work piece, which has the effect that the work pieces become quite uniformly finished as the sanding members engage from all sides. Hereby a completely uniform sanding result is ensured.
1 By letting the work pieces pass under the sanding spindle, e.g. by means of a conveyor belt, a con-tenuous finishing of the surface can take place in a rational way. By a suitable choice of sanding means, speed and tightening the desired quality and speed of production can be obtained.
By rotating the sanding members in various directions as disclosed in claim 2, it is possible by e.g. let tying adjacent spindles rotate in opposite directions to achieve a very smooth surface, which will show no sanding traces since an opposite finishing will take place all over the surface, as the work pieces are moved under the sanding members.
By being able to determine the direction of rotation as well as the engaging and disengaging of the rota-lion of the sanding members in predetermined places in the turning path of the spindles, as disclosed in claim 3, it will be possible to program the sanding so that it is possible to sand more or less carefully and in certain directions, and without sanding steep edges, terminal surfaces and the like so that the sans ding result is improved.
By mounting the spindles, as disclosed in claim I
it is possible by means of simple driving means to obtain a transfer of movement from a central rotating cylinder to the individual spindles, which transfer provides the possibility of bearing against either the upper or the lower friction ring, which deter-mines the direction of rotation of the spindle.
Finally, it is expedient, as disclosed in claim 53 to ~.~3~53(~
1 move the beddings of the spindles by means Or a cam, which may act on a maneuvering lever whereby eying-cement and disengagement as well as direction of rota-lion of the spindle may be programmed by a suitable location of cams.
The invention will be described further in the lot-lowing with reference to the drawing, wherein 0 fig. 1 shows an apparatus seen in the direction I-I in fig. 2, fig. 2 shows the same apparatus seen in the direction II-II in fig. 1, and fig. 3 shows another embodiment of an appear-tusk seen in the same direction as in fig.
2.
On fig. 1 and 2 an embodiment of the invention is shown, viz. in form of a through-feed sanding machine e.g. for wood finishing and denibbling of panels, doors and gates with panels.
The machine comprises a not shown frame, on which is mounted a conveyor belt for panel doors 12 being the illustrated work piece. The conveyor comprises two conveyor belts 13, which are moved by a shaft 15.
The doors are placed on the belt in such a way that they abut. Furthermore, on both sides under the sanding members 11 a guard 14 is placed, the upper edge of which is in line with the surfaces of the doors 12. Hereby the lateral edges of the doors are ~3:~53C~
1 protected against sanding, as the sanding members cannot engage the edges, which will remain sharp.
The sanding arrangement itself is mounted above the work pieces 12. In the shown example it comprises six spindles 10 mounted in a not shown bedding that can be turned around the center of the equipment. The axis of rotation is vertical. Hereby the spindles 10 may describe a circular movement, a motor 3 over a not shown drive turning all the spindles. Each spindle is provided with a steering arm 9 carrying at the top a horizontally mounted roller 16, which during rota-lion is moved under a stationary ring 5. On this ring 5 various cams or guides 17, 18 may be secured, which may act on the steering arm 9 in vertical direction.
Furthermore, a cylinder 19 is embedded, which can be made to rotate around a vertical shaft by means of a motor 2. This cylinder is provided with an upper and a lower slanting facing 6 and 7, which facings are provided with a friction promoting material such as rubber ox the like.
Between these two lacings 6, 7 a friction cone 8 is mounted, which cone is secured to one end of the spindle 10. By raising and lowering this cone by way of the steering arm 9, the spindle can be made to turn in two directions and if desired be risen-gaged in the middle positions, as shown on fig. 2 by the left spindle.
Jo This construction will permit programming of the sanding process the choice of cams or guides de-scribing the sanding process in such a way that the I i31) 1 machine can be programmed in any desired way depend-in on the prescribed sanding work.
The entire sanding equipment is secured to an upper machine part 1 that can be raised or lowered in rota-lion to the conveyor belt thus permitting the machine to be adjusted in height to work piece and weed me charism.
On fig. 3 another embodiment of the apparatus is shown. It differs prom the apparatus shown and desert-bed on fig. 1 and 2 in that it has a large U-shapedlya~e en maneuvering arm 20, extending between a bedding 25 inside the rotating driving cylinder 19, and the spindle 10 between the sanding member 11 and the cone 8. The bedding 25 is connected to toes Myra 3 in such a way that the arms 20 and thus the punned 10 can rotate around the cylinder 19.
Thus, the arm 20 can tilt around the bedding 25 so that the cone 8 can be brought into contact with the lower and toe upper friction ring 6, 7, respectively on the cylinder 19.
On the upper side ox the arm 10 a roller 21 is mount-Ed which con be turned around a vertical axis During rotation of the spindle 10 this roller 21 can be tilted in or out in relation to the ring by means of cams 23 and 24 mounted on the stationary ring 5, and thus swing the spindle 10 with the cone 8 up or down in relation to the cylinder 19.
In order to hold the roller against the cams 23 and 24 one or more draw-springs 22 are mounted.
~3~153~
1 By a suitable choice of cam size the direction ox rotation for the spindles may be determined. As shown on fig. 3, the left spindle is tilted so that the cone 8 is in friction contact with the lower ring 6. A smaller cam 24, shown to the right on the draw-in will make the cone engage the upper friction ring 7 and hereby give the spindle an opposite direct lion of rotation. A cam with a thickness in between these mentioned cams will hold the cone in between the friction rings 6 and 7 and thus stop the rota-lion of the spindle.
Thus, by choosing the size of cam and place of these on the ring 5 the sanding can be programmed in such a way that it may be adapted individually according to need. Furthermore, the very rigid construction of arm, bedding and spindle provides a completely non-vibrating and thus a smooth and precise sanding result.
The other parts shown on fig. I which correspond to the parts shown on fig. 1 and 2 haze the same rerun go numbers.
The shown motors 2 and 3 can be adjusted infinitely variable, whereby the desired completely programmer able through-feed machine can be obtained.
The sanding member 11 shown and described is a cry-finder comprising juxtaposed rings with thin sanding threads, which member may engage the work piece in an efficient way. However, any form of sanding member, polishing disc or wire brush, bronze brush or the like may be used according to requirement ~IIL23~L530 1 Instead ox the described embodiment with steering levers and cams, the machine may be provided with different kinds ox control and adjustment means.
Thus, the spindle may be engaged and disengaged by means of hydraulic or electromagnetic means, just as an independent motor or each spindle would be imaginable.
I
On fig. 1 and 2 an embodiment of the invention is shown, viz. in form of a through-feed sanding machine e.g. for wood finishing and denibbling of panels, doors and gates with panels.
The machine comprises a not shown frame, on which is mounted a conveyor belt for panel doors 12 being the illustrated work piece. The conveyor comprises two conveyor belts 13, which are moved by a shaft 15.
The doors are placed on the belt in such a way that they abut. Furthermore, on both sides under the sanding members 11 a guard 14 is placed, the upper edge of which is in line with the surfaces of the doors 12. Hereby the lateral edges of the doors are ~3:~53C~
1 protected against sanding, as the sanding members cannot engage the edges, which will remain sharp.
The sanding arrangement itself is mounted above the work pieces 12. In the shown example it comprises six spindles 10 mounted in a not shown bedding that can be turned around the center of the equipment. The axis of rotation is vertical. Hereby the spindles 10 may describe a circular movement, a motor 3 over a not shown drive turning all the spindles. Each spindle is provided with a steering arm 9 carrying at the top a horizontally mounted roller 16, which during rota-lion is moved under a stationary ring 5. On this ring 5 various cams or guides 17, 18 may be secured, which may act on the steering arm 9 in vertical direction.
Furthermore, a cylinder 19 is embedded, which can be made to rotate around a vertical shaft by means of a motor 2. This cylinder is provided with an upper and a lower slanting facing 6 and 7, which facings are provided with a friction promoting material such as rubber ox the like.
Between these two lacings 6, 7 a friction cone 8 is mounted, which cone is secured to one end of the spindle 10. By raising and lowering this cone by way of the steering arm 9, the spindle can be made to turn in two directions and if desired be risen-gaged in the middle positions, as shown on fig. 2 by the left spindle.
Jo This construction will permit programming of the sanding process the choice of cams or guides de-scribing the sanding process in such a way that the I i31) 1 machine can be programmed in any desired way depend-in on the prescribed sanding work.
The entire sanding equipment is secured to an upper machine part 1 that can be raised or lowered in rota-lion to the conveyor belt thus permitting the machine to be adjusted in height to work piece and weed me charism.
On fig. 3 another embodiment of the apparatus is shown. It differs prom the apparatus shown and desert-bed on fig. 1 and 2 in that it has a large U-shapedlya~e en maneuvering arm 20, extending between a bedding 25 inside the rotating driving cylinder 19, and the spindle 10 between the sanding member 11 and the cone 8. The bedding 25 is connected to toes Myra 3 in such a way that the arms 20 and thus the punned 10 can rotate around the cylinder 19.
Thus, the arm 20 can tilt around the bedding 25 so that the cone 8 can be brought into contact with the lower and toe upper friction ring 6, 7, respectively on the cylinder 19.
On the upper side ox the arm 10 a roller 21 is mount-Ed which con be turned around a vertical axis During rotation of the spindle 10 this roller 21 can be tilted in or out in relation to the ring by means of cams 23 and 24 mounted on the stationary ring 5, and thus swing the spindle 10 with the cone 8 up or down in relation to the cylinder 19.
In order to hold the roller against the cams 23 and 24 one or more draw-springs 22 are mounted.
~3~153~
1 By a suitable choice of cam size the direction ox rotation for the spindles may be determined. As shown on fig. 3, the left spindle is tilted so that the cone 8 is in friction contact with the lower ring 6. A smaller cam 24, shown to the right on the draw-in will make the cone engage the upper friction ring 7 and hereby give the spindle an opposite direct lion of rotation. A cam with a thickness in between these mentioned cams will hold the cone in between the friction rings 6 and 7 and thus stop the rota-lion of the spindle.
Thus, by choosing the size of cam and place of these on the ring 5 the sanding can be programmed in such a way that it may be adapted individually according to need. Furthermore, the very rigid construction of arm, bedding and spindle provides a completely non-vibrating and thus a smooth and precise sanding result.
The other parts shown on fig. I which correspond to the parts shown on fig. 1 and 2 haze the same rerun go numbers.
The shown motors 2 and 3 can be adjusted infinitely variable, whereby the desired completely programmer able through-feed machine can be obtained.
The sanding member 11 shown and described is a cry-finder comprising juxtaposed rings with thin sanding threads, which member may engage the work piece in an efficient way. However, any form of sanding member, polishing disc or wire brush, bronze brush or the like may be used according to requirement ~IIL23~L530 1 Instead ox the described embodiment with steering levers and cams, the machine may be provided with different kinds ox control and adjustment means.
Thus, the spindle may be engaged and disengaged by means of hydraulic or electromagnetic means, just as an independent motor or each spindle would be imaginable.
I
Claims (10)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. Apparatus for finishing the surface of a workpiece, the apparatus comprising:
a frame, a plurality of elongated spindles, each having a longitudinal axis;
a sanding member mounted on each spindle, each sanding member being in the form of a body of revolution hav-ing a longitudinal axis coinciding with the longitudinal axis of the corresponding spindle;
means for supporting the plurality of spindles from said frame such that a circumferential portion of each sand-ing member lies in a common plane, and the longitudinal axes of the sanding members intersect an axis perpendicular to said common plane;
means for revolving said supporting means about said axis perpendicular to said common plane; and means for selectively rotating each spindle about its longitudinal axis in either of two opposite directions during separate selected portions of each revolution of said supporting means, said means for selectively rotating each sanding member comprising:
a friction cone affixed to a radially inner end of each spindle;
a first friction ring;
a second friction ring;
means for mounting the first and second friction rings in fixed spaced relation concentrically perpendicular to said axis perpendicular to said common plane with said friction cones disposed between the first and second friction rings, the spacing between the friction rings being such that each friction cone can contact only one of the friction rings at a time; and said means for supporting said plurality of spindles comprises:
means for selectively moving each spindle between a first position in which the associated friction cone engages the first friction ring and a second position in which the associated friction cone engages the second friction ring.
a frame, a plurality of elongated spindles, each having a longitudinal axis;
a sanding member mounted on each spindle, each sanding member being in the form of a body of revolution hav-ing a longitudinal axis coinciding with the longitudinal axis of the corresponding spindle;
means for supporting the plurality of spindles from said frame such that a circumferential portion of each sand-ing member lies in a common plane, and the longitudinal axes of the sanding members intersect an axis perpendicular to said common plane;
means for revolving said supporting means about said axis perpendicular to said common plane; and means for selectively rotating each spindle about its longitudinal axis in either of two opposite directions during separate selected portions of each revolution of said supporting means, said means for selectively rotating each sanding member comprising:
a friction cone affixed to a radially inner end of each spindle;
a first friction ring;
a second friction ring;
means for mounting the first and second friction rings in fixed spaced relation concentrically perpendicular to said axis perpendicular to said common plane with said friction cones disposed between the first and second friction rings, the spacing between the friction rings being such that each friction cone can contact only one of the friction rings at a time; and said means for supporting said plurality of spindles comprises:
means for selectively moving each spindle between a first position in which the associated friction cone engages the first friction ring and a second position in which the associated friction cone engages the second friction ring.
2. Apparatus according to claim 1, wherein said means for selectively moving each spindle between said first position and said second position comprises:
a yoke for each spindle, each yoke being rotatably connected to said supporting means for pivoting about an axis parallel to said common plane;
bearing means for rotatably connecting each spindle to the associated yoke; and means for controllably pivoting said yoke to move the associated spindle between said first and second posit-ions.
a yoke for each spindle, each yoke being rotatably connected to said supporting means for pivoting about an axis parallel to said common plane;
bearing means for rotatably connecting each spindle to the associated yoke; and means for controllably pivoting said yoke to move the associated spindle between said first and second posit-ions.
3. Apparatus according to claim 2 wherein the longitu-dinal axis of each spindle intersects the pivot axis of the corresponding yoke.
4. Apparatus according to claim 2 wherein the means for controllably pivoting said yoke comprises a cam follower fixed to the yoke and a cam member fixedly connected to the frame, the cam member having a circular cam path contacted by the cam follower as the supporting means revolves around said axis perpendicular to said common plane.
5. A method for finishing a surface of a workpiece, the method comprising:
(a) contacting the surface of the workpiece with a circumferential portion of at least one sand-ing member in the form of a body of revolution having a longitudinal axis;
(b) revolving the sanding member in a circle of re-volution over the surface of the workpiece; and (c) rotating each sanding member about its longitu-dinal axis in a preselected first direction du-ring a first portion of each circle of revolu-tion and rotating each sanding member in a sec-ond direction, opposite to the first direction, during a second portion of each circle of revo-lution.
(a) contacting the surface of the workpiece with a circumferential portion of at least one sand-ing member in the form of a body of revolution having a longitudinal axis;
(b) revolving the sanding member in a circle of re-volution over the surface of the workpiece; and (c) rotating each sanding member about its longitu-dinal axis in a preselected first direction du-ring a first portion of each circle of revolu-tion and rotating each sanding member in a sec-ond direction, opposite to the first direction, during a second portion of each circle of revo-lution.
6. A method according to claim 5 wherein the at least one sanding member comprises a plurality of sanding members.
7. A method according to claim 6 wherein the plurality of sanding members are arranged with the logitudinal axis of each sanding member intersecting the center of said circle of revolution.
8. A method for finishing a surface of a workpiece, the method comprising:
(a) contacting the surface of the workpiece with a circumferential portion of at least one sanding member in the form of a body of revolution hav-ing a longitudinal axis;
(b) revolving the sanding member in a circle of re-volution over the surface of the workpiece; and (c) rotating each sanding member about its longitu-dinal axis in a preselected direction during a first portion of each circle of revolution and stopping rotation of each sanding member during a second portion of each circle of revolution.
(a) contacting the surface of the workpiece with a circumferential portion of at least one sanding member in the form of a body of revolution hav-ing a longitudinal axis;
(b) revolving the sanding member in a circle of re-volution over the surface of the workpiece; and (c) rotating each sanding member about its longitu-dinal axis in a preselected direction during a first portion of each circle of revolution and stopping rotation of each sanding member during a second portion of each circle of revolution.
9. A method according to claim 8 wherein the at least one sanding member comprises a plurality of sanding members.
10. A method according to claim 9 wherein the plurality of sanding members are arranged with the longitudinal axis of each sanding member intersecting the center of said circle of revolution.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK2108/83 | 1983-05-11 | ||
| DK210883A DK156703B3 (en) | 1983-05-11 | 1983-05-11 | Method and apparatus for machining surfaces on woodpieces by means of rotary grinding elements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1231530A true CA1231530A (en) | 1988-01-19 |
Family
ID=8110116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000454000A Expired CA1231530A (en) | 1983-05-11 | 1984-05-10 | Method and apparatus for finishing surfaces |
Country Status (14)
| Country | Link |
|---|---|
| JP (1) | JPS59209752A (en) |
| AT (1) | AT389267B (en) |
| CA (1) | CA1231530A (en) |
| CH (1) | CH668024A5 (en) |
| DE (2) | DE3416629A1 (en) |
| DK (1) | DK156703B3 (en) |
| FI (1) | FI76945C (en) |
| FR (1) | FR2545747B1 (en) |
| GB (1) | GB2141648B (en) |
| NL (1) | NL189179C (en) |
| NO (1) | NO156678C (en) |
| SE (1) | SE449827B (en) |
| SU (1) | SU1491324A3 (en) |
| ZA (1) | ZA8410081B (en) |
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| JPS61257757A (en) * | 1985-05-10 | 1986-11-15 | デイ−・エム・シ−・デイビジオネ・メカニカ・カステツリ・エス・ピ−・エ− | Finishing device for panel |
| JPS62192862U (en) * | 1986-05-29 | 1987-12-08 | ||
| DE8717836U1 (en) * | 1986-09-24 | 1990-07-05 | Lustig, Leo, 6953 Gundelsheim | Parquet sanding machine |
| JPH01135463A (en) * | 1987-11-18 | 1989-05-29 | Takegawa Tekko Kk | Finishing grinder for wooden work |
| JPH02122756U (en) * | 1988-11-05 | 1990-10-09 | ||
| DK164969C (en) * | 1990-05-22 | 1993-02-15 | Hh Patent As | spindle drive |
| DK165549C (en) * | 1990-05-22 | 1993-04-26 | Hh Patent Aps | PROCEDURE AND PROCESSING EQUIPMENT FOR USE BY GRINDING ISAER WOODEN PILLOWS IN A GRINDING MACHINE |
| JPH08118228A (en) * | 1994-10-20 | 1996-05-14 | Atsuo Miyazaki | Method for finishing woodwork and polishing device for woodwork |
| DE29508657U1 (en) * | 1995-05-24 | 1995-09-14 | Behr, Rainer, 89522 Heidenheim | Grinding machine |
| AT407130B (en) * | 1995-05-24 | 2000-12-27 | Behr Rainer | GRINDING MACHINE |
| JP4215391B2 (en) * | 1997-11-03 | 2009-01-28 | エイチ エイチ パテント エイ／エス | Thunder finishing method of processed product surface |
| CN113601623A (en) * | 2021-09-06 | 2021-11-05 | 江苏江海机床集团有限公司 | Log processing is with effectual log centring means of centering |
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| DE468719C (en) * | 1928-11-17 | Georg Siguda | Additional grinding device for grinding machines with vertical rotating grinding spindle carrying the grinding tool with cardan joint | |
| US1566659A (en) * | 1925-12-22 | Joseph dutton | ||
| FR655214A (en) * | 1928-06-04 | 1929-04-16 | Reversing device for machine tools | |
| GB497412A (en) * | 1936-03-11 | 1938-12-16 | Heuze Malevez & Simon Reunis S | Improvements in and relating to apparatus for polishing glass |
| FR817795A (en) * | 1936-03-11 | 1937-09-10 | Heuze Atel | Improvements in the grinding and polishing of hard materials, such as glass and execution devices |
| US2420876A (en) * | 1945-02-07 | 1947-05-20 | Freud Ernest | Machine for surface finishing action on materials |
| DE801498C (en) * | 1949-07-15 | 1951-01-08 | Karl Dipl-Ing Fickert | Surface grinding and polishing machine with planetary rotating grinding wheels |
| US2948087A (en) * | 1958-11-03 | 1960-08-09 | Reproduction Res Lab Inc | Plate graining apparatus |
| US3441968A (en) * | 1967-01-23 | 1969-05-06 | Harper Buffing Machine Co | Automatic buffing machine |
| DE2015385C3 (en) * | 1970-04-01 | 1973-12-06 | Fickert & Winterling Kg Maschinenu. Schleifscheibenfabrik, 8590 Marktredwitz | Grinding head, especially for grinding flat surfaces on work pieces made of stone, glass or similar materials |
| IT1132464B (en) * | 1980-08-25 | 1986-07-02 | Ermanno Pacini | TOOL FOR ROUGHING, SMOOTHING AND POLISHING OF SOLID SURFACES, PARTICULARLY SUITABLE FOR STONE MATERIALS |
-
1983
- 1983-05-11 DK DK210883A patent/DK156703B3/en not_active IP Right Cessation
-
1984
- 1984-05-03 AT AT147484A patent/AT389267B/en not_active IP Right Cessation
- 1984-05-04 NO NO841776A patent/NO156678C/en not_active IP Right Cessation
- 1984-05-04 FI FI841799A patent/FI76945C/en not_active IP Right Cessation
- 1984-05-05 DE DE19843416629 patent/DE3416629A1/en active Granted
- 1984-05-05 DE DE19848413700 patent/DE8413700U1/en not_active Expired
- 1984-05-09 SE SE8402513A patent/SE449827B/en not_active IP Right Cessation
- 1984-05-09 CH CH226984A patent/CH668024A5/en not_active IP Right Cessation
- 1984-05-09 GB GB08411784A patent/GB2141648B/en not_active Expired
- 1984-05-10 SU SU843742721A patent/SU1491324A3/en active
- 1984-05-10 NL NL8401505A patent/NL189179C/en not_active IP Right Cessation
- 1984-05-10 CA CA000454000A patent/CA1231530A/en not_active Expired
- 1984-05-11 JP JP9442284A patent/JPS59209752A/en active Granted
- 1984-05-11 FR FR8407306A patent/FR2545747B1/fr not_active Expired
- 1984-12-27 ZA ZA8410081A patent/ZA8410081B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ZA8410081B (en) | 1986-08-27 |
| FR2545747A1 (en) | 1984-11-16 |
| AT389267B (en) | 1989-11-10 |
| GB2141648B (en) | 1987-06-03 |
| NO156678B (en) | 1987-07-27 |
| NO156678C (en) | 1987-11-04 |
| FR2545747B1 (en) | 1989-09-29 |
| DK210883A (en) | 1983-05-11 |
| GB2141648A (en) | 1985-01-03 |
| NO841776L (en) | 1984-11-12 |
| DE3416629A1 (en) | 1984-11-15 |
| SU1491324A3 (en) | 1989-06-30 |
| FI841799A (en) | 1984-11-12 |
| DK210883D0 (en) | 1983-05-11 |
| JPS59209752A (en) | 1984-11-28 |
| DE3416629C2 (en) | 1989-08-17 |
| SE449827B (en) | 1987-05-25 |
| GB8411784D0 (en) | 1984-06-13 |
| DE3416629C3 (en) | 1992-08-27 |
| NL8401505A (en) | 1984-12-03 |
| NL189179C (en) | 1993-02-01 |
| DE8413700U1 (en) | 1987-10-29 |
| DK156703C (en) | 1991-01-21 |
| JPH0541389B2 (en) | 1993-06-23 |
| FI76945C (en) | 1989-01-10 |
| SE8402513L (en) | 1984-11-12 |
| CH668024A5 (en) | 1988-11-30 |
| DK156703B3 (en) | 1991-01-21 |
| SE8402513D0 (en) | 1984-05-09 |
| FI841799A0 (en) | 1984-05-04 |
| ATA147484A (en) | 1989-04-15 |
| FI76945B (en) | 1988-09-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |