CN101332610B - Woodworker planer input surface height measuring system and method - Google Patents
Woodworker planer input surface height measuring system and method Download PDFInfo
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- CN101332610B CN101332610B CN2007101422316A CN200710142231A CN101332610B CN 101332610 B CN101332610 B CN 101332610B CN 2007101422316 A CN2007101422316 A CN 2007101422316A CN 200710142231 A CN200710142231 A CN 200710142231A CN 101332610 B CN101332610 B CN 101332610B
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Abstract
The invention relates to a carpenter flat plane system which comprises a blade component, a base, a feed table and a measuring system. The base is used for supporting the blade component, thus a datum plane is formed; the feed table forms an input plane; the measuring system comprises a stop part, a rigid connection base, a gauge component and a display part; the stop part forms a stop face including a stop plane; the gauge component comprises a gauge for supporting a pin part relative to the feed table and contacting the stop face. The gauge generates a measuring signal which indicates a movement amount of the gauge relative to either the feed table or the pin part; the display part generates a display image based on the measuring signal, wherein, the display image displays a data, which indicates a movement amount of the input plane relative to the datum plane.
Description
Technical field
The present invention relates to the carpenter's flat plane platform, relate in particular to the measuring system and the method for the height of carpenter's flat plane platform input face relative datum face.
Background technology
The plank that is used for wooden object is generally a complete rectangle, comprises a his-and-hers watches plane, a pair of end face.The distolateral surface, table plane and the terminal end surface that are used for the plank of wooden object preferably are flat-satin, and parallel to each other.
Yet, according to various factors, such as the growth conditions of timber type, trees, and the process of plank, be used for the general equal difference of surface characteristics of the former plank of wooden object, and influence the moisture of processing back plank.
Therefore, if plank surface irregularity (such as concavo-convex) then also needs planarizing surfaces, thereby make it smooth substantially.In addition, before available log, the side of log and end face generally need processing, thereby the apparent surface becomes rectangle, and carries out smooth processing, so that glued joint and/or become finished product.
Thereby obtain to need planarizing surfaces, thereby make the surface smooth substantially in this process of rectangle wooden unit in processing that log is planished, and parallel to each other, planed in the side then, make it smooth, and perpendicular to the surface.
Utilizing modern woodworking machinery to obtain smooth this method of rectangle plank comprises: utilize carpenter's flat plane machine or the thicknessing machine first surface of planing, utilize the thicknessing machine second surface of planing, and be parallel to first surface, and utilize the carpenter's flat plane side of planing, make it become rectangle.End limit general using cross-cut saw cuts into certain length (radial cut, bench saw).
The present invention relates to the carpenter's flat plane system, be used to the processing logs of planing, to obtain the rectangle plank.Carpenter's flat plane comprises: a pedestal is used for the supporting blade assembly; A loading bay has an input face, thereby forms input face; Discharge pedestal with output face.Input face is basically parallel to output face, but not concordant with it.Loading bay and discharge pedestal are supported by pedestal, thereby cutting edge is between input face and the output face.Pedestal is supporting blade in cutting edge.Carpenter's flat plane also comprises a striker plate, and it extends vertically up to input face and output face.
In use, the timber machined surface (workpiece) of desire planing places on the input face.Workpiece passes cutting edge and laterally moves, thereby blade is cut down the part workpiece on the machined surface.Along with workpiece laterally moves through cutting edge, workpiece is just supported by output face.When plank laterally moved through cutting edge, workpiece can lean against on the striker plate once more.
Utilize carpenter's flat plane to come one of processing work to focus on depth of cut.Depth of cut depends on the distance between the datum level that input face and blade form.Datum level is a kind of following plane: it is parallel to input face, and tangent with the topmost of cutting post.Depth of cut should reach maximum to specific carpenter's flat plane and specific workpiece characteristic.The workpiece characteristic relates to depth of cut, comprises timber type, granularity structure, humidity, surface of the work size.
Most carpenter's flat plane can be regulated depth of cut.In depth of cut is regulated, move loading bay relative to pedestal.That is, the base supports particular blade, thus the datum plane of blade is in certain absolute position.The base supports loading bay, thus input plane is parallel to datum level, but input face relative datum face moves up and down.
Yet for some reason, loading bay is not supported because of moving up and down merely of relative datum face.So-called " simple moving " expression loading bay moves along rectilinear direction, and it is parallel to the vertical reference line of the rotation that passes cutting member.Term " vertically " reaches " parallel " here with respect to carpenter's flat plane, and input face and output face during normal use are level.
A simple problem that moves of loading bay is that the near side (ns) of loading bay forms the part cutting edge.When moving on the relative pedestal of loading bay, simple the moving of loading bay makes the near side (ns) side direction leave blade, thereby increases the size of cutting edge.If cutting edge is too big, just then workpiece can normally not planed, to obtain rectangular panel blocks.The near side (ns) of loading bay should be tried one's best in planing near cutting member, thereby reduces the size of cutting edge.
Loading bay is supported for and can moves fully relative to pedestal.Term " mobile fully " is illustrated in during loading bay moves, and the near side (ns) of loading bay moves along the path that is not parallel to vertical reference line.
First kind of carpenter's flat plane is defined as the carpenter's flat plane of slip on the dove-tail form guide rail here, at the volley, forms complete angle supporting surface on loading bay and pedestal.The relative vertical reference line of supporting surface has angle, thereby the near side (ns) of loading bay is moved along linear path, thereby when the relative pedestal of loading bay moves, is toward or away from vertical reference line.
Second kind of carpenter's flat plane is defined as the carpenter's flat plane with parallelogram motion here, and loading bay is supported by two support arms, and support arm and pedestal and loading bay articulate.Support arm makes the near side (ns) of loading bay move along non-linear (being arch) path.When loading bay when pedestal moves, the path of loading bay near side (ns) leaves the near side (ns) of loading bay or near vertical reference line.
In above-mentioned any one compound motion system, all be difficult to determine depth of cut.Depth of cut is generally measured by the dial system, comprises a dial that is formed on the pedestal, and a pointer that joins with loading bay.Dial comprises a series of lines, and the distance between the lines is corresponding to the increase of depth of cut.Yet because measured distance is less, thereby lines must be less, to such an extent as to be difficult to see clearly the relation between pointer and the lines.In addition, this dial system inaccuracy is lower than 1/32 inch of distance increment.
In addition, often need to change blade assembly.Different blades has different diameters.Therefore, the relative pedestal of datum level may be in different height.Thereby traditional dial system is used to measure depth of cut, and dial is fixed on the pedestal, but for different datum levels, it is not easy to proofread and correct again.
The discharge pedestal of traditional carpenter's flat plane is regulated with basic identical method in loading bay.Adjustable discharge pedestal can be provided with the position of discharge pedestal, thereby adapts to the blade assembly with different datum levels.In discharge pedestal is regulated, output face basic with the datum level coplanar that forms by particular blade.
Therefore, need a kind of system and method accurately and reliably, determine the depth of cut of carpenter's flat plane.
Summary of the invention
The present invention can be presented as a kind of carpenter's flat plane system, comprising: a blade assembly, a pedestal, a loading bay and a measuring system.Pedestal is used for the supporting blade assembly, thereby forms datum level.Loading bay forms input face.Measuring system comprises: a retainer, the pedestal that is rigidly connected, a gauge assembly and a display part.Retainer forms the stop surface that comprises stop surfaces.The gauge assembly comprises a gauge, by loading bay support, a pin member, the contact stop surface.Gauge produces measuring-signal, the amount of movement of one of the expression relative loading bay of gauge and pin member.Display part produces display image based on measuring-signal, wherein, and display image video data, the amount of movement of this data representation input face relative datum face.
The present invention can be presented as a kind of Work piece processing method, may further comprise the steps: carpenter's flat plane is provided, comprises the loading bay of a pedestal, a formation input face, a discharge pedestal that forms output face.Cutter shaft, blade are installed on the cutter shaft, and cutter shaft is installed on the pedestal and turns round, and wherein, blade forms the cutting post that comprises datum level, and this datum level is a level, and tangent with cutting post bottom.Between first and second position, move loading bay relative to pedestal, thereby regulate the depth of cut of carpenter's flat plane.Retainer comprises a stop surface that forms stop surfaces, and the pedestal that is rigidly connected.Support gauge by loading bay.Support pin member by gauge, thereby make pin member contact stop surface.Protractor member is moved relative to one of loading bay and pin member, thereby loading bay is moved relative to pedestal.Generate measuring-signal, the amount of movement of one of the expression relative loading bay of gauge and pin member, wherein, measuring-signal is corresponding to the amount of movement of loading bay relative datum face.Generate display image based on measuring-signal, wherein, display image demonstrates data, the amount of movement of this data representation loading bay relative datum face.
Description of drawings
Fig. 1 represents first example of the depth of cut measuring system of carpenter's flat plane of the present invention.
Fig. 2 is the rearview of the carpenter's flat plane of Fig. 1, represents the critical piece of the first depth of cut measuring system example.
Fig. 3 is a rearview, the first depth of cut measuring system example of expression first configuration.
Fig. 4 is a rearview, the first depth of cut measuring system example of expression second configuration.
Fig. 5 is the side view of the carpenter's flat plane of Fig. 1, represents the critical piece of depth of cut measuring system example of the present invention.
Fig. 6 is the front view of the carpenter's flat plane of Fig. 1, represents depth of cut measuring system example of the present invention.
Fig. 7 is a rearview, the second depth of cut measuring system example of expression first configuration.
Fig. 8 is a rearview, the second depth of cut measuring system example of expression second configuration.
The specific embodiment
Fig. 1 represents the cutting measuring system 20 of carpenter's flat plane of the present invention, but first example of adapted depth-measuring system 20 of the present invention.Carpenter's flat plane 20 is not corresponding one by one with the present invention, only is used to understand first example of depth of cut measuring system 22.
Carpenter's flat plane 20 is a kind of slip carpenter's flat planes on the dove-tail form guide rail, in conjunction with carpenter's flat plane 20 principle of the present invention is described.But the example of depth of cut measuring system 22 also is suitable for the carpenter's flat plane system of other type, such as the platform-type carpenter's flat plane of parallelogram.
Dove-tail form carpenter's flat plane 20 comprises a pedestal 30, loading bay 32, discharge pedestal 34, striker plate 36, a protective cover 38.Pedestal 30 comprises a structure for susceptor 40, blade 42, a vertical structure body 44.One or more blades 48 that blade 42 comprises a wheel hub 46, extends from wheel hub 46.
Loading bay 32 forms input face S1 and first supporting surface 50.Discharge pedestal 34 forms output face S0 and second supporting surface 52.Base body 40 forms first and second base supports face 54 and 56.The first base supports face 54 is meshed with first supporting surface 50, thereby supports loading bay 32, and D moves relative to base body 40 in the direction of arrows.The second base supports face 56 is meshed with second supporting surface 52, thereby supports discharge pedestal 34, and E moves relative to base body 40 in the direction of arrows.
Loading bay 32 forms an input near side (ns) 60, and discharge pedestal forms an output near side (ns) 62.Near side (ns) 60 and 62 forms a cutting edge 64.Being set to of blade 42 moved in cutting edge 64 to the small part blade.
Import surperficial S1 and form an input face F1, output surface S0 then forms an output face G.In conventional art, datum level C1, input face F1 and output face G are level, and parallel to each other.Discharge pedestal 34 preferably is adjusted to: output face G and datum level C coplane.Offset or dish H between input face F and the datum level C forms the depth of cut of carpenter's flat plane 20.
As shown in Figure 2, depth of cut measuring system 22 comprises a retainer 70, gauge 72, a display unit 74.Retainer 70 forms a smooth stop surface 76, thereby forms stop surface I.Shown in Fig. 3 and 4, retainer 70 is rigidly connected on the base body 40, and stop surface I is level substantially.
In the position of selected gauge 80 relative loading bays 32 and during the position of retainer 70 relative pedestals 40, thus when loading bay 32 when base body 40 moves the setting depth of cut, make the head 88 of pin member 82 contact end faces 76.
Shown in Fig. 3 and 4, loading bay 32 moves between the primary importance (Fig. 3) and the second place (Fig. 4).First and second position forms the range of movement of loading bay 32 relative base bodies 40.When loading bay 32 is in primary importance, input face F at least with datum level C coplanar, and can be higher than datum level C.When loading bay 32 was in the second place, input face F was lower than datum level C, and its reduction amount is equivalent to offset or dish H.According to desirable depth of cut, loading bay 32 generally is between first and second position.
Along with loading bay 32 moves between first and second position, gauge 80 moves in the D direction with loading bay 32, and pin member 82 is displaced sideways, and its distance is equivalent to pin member displacement K, as shown in Figure 4.Yet owing to pin member 82 moves relative to gauge 80, thereby gauge 80 moves a gauge distance L relative to pin member 82.The gauge distance L equals offset or dish H.
Gauge 72 forms and cuts the signal that fathoms based on the displacement of gauge 80 relative pin members 82.The depth of cut signal is a kind of numeral or analog signal, corresponding to the gauge distance L.
As mentioned above, datum level C is determined by the size of each particular blade 42.Be correcting measuring system 22, loading bay 32 moves to input face F and is parallel to till the datum level C.Can utilize the correction button 98 on the control panel 90, make the output zero setting (no longer demonstrating the amount of movement of input face) of display unit 96 with respect to datum level.The output of display unit 96 is corresponding to the represented distance of depth of cut signal, and this distance is when the distance of pressing when proofreading and correct button 98 on the end face 76 with respect to the position of pin member 82.
Fig. 7 and 8 another example depth of cut measuring systems 120 of expression, it adopts principle of the present invention.Measuring system 120 also is suitable for use in the forked tail platform carpenter's flat plane, such as example carpenter's flat plane 20, or the carpenter's flat plane of other type, such as the parallelogram carpenter's flat plane.
Shown in Fig. 7 and 8, depth of cut measuring system 120 comprises a retainer 130, gauge 132, a display part 134.Retainer 130 forms a plane stop surfaces 136, and it forms a stop surface M.Shown in Fig. 7 and 8, retainer 130 base body 40 that is rigidly connected, thereby stop surface M basic horizontal.
The position of track 142 relative loading bays 32, and retainer 130 relative to the position of pedestal 40 selection principle is: thus move when depth of cut is set relative to pedestal 40 when loading bay 32, make the top 148 contact end faces 136 of pin member 144.
Shown in Fig. 7 and 8, loading bay 32 moves between the primary importance (Fig. 7) and the second place (Fig. 8).First and second position forms the range of movement of loading bay 32 relative base bodies 40.When loading bay 32 is in primary importance, input face F at least with datum level C coplanar, and can be higher than datum level C.When loading bay 32 was in the second place, input face F was lower than datum level C, and its reduction amount is equivalent to offset or dish H.According to desirable depth of cut, loading bay 32 generally is between first and second position.
Along with loading bay 32 moves between first and second position, gauge 140 moves in the D direction with loading bay 32, and pin member 144 is displaced sideways, and its distance is equivalent to pin member displacement O, as shown in Figure 8.In addition, gauge 140 is along the longitudinal axis Q of track 142, and relative orbit spare 142 moves a gauge distance P.The gauge distance P equals offset or dish H.
Identical with above-mentioned display part 74, display part 134 comprises a control panel (not shown), support member 150, a cable 152, and this cable is used for transmitting the depth of cut signal from gauge 132 to control panel.Support member 150 supporting control panel are convenient to the operator and are watched image, and it represents depth of cut, and display image produces based on the depth of cut signal.
As mentioned above, datum level C is determined by the size of each particular blade 42.Be correcting measuring system 120, loading bay 32 moves to input face F and is parallel to till the datum level C.Can utilize the correction button (not shown) on the control panel 90, make the output zero setting of display unit.The output of display unit is corresponding to the represented distance of depth of cut signal, and this distance is when the distance of pressing when proofreading and correct button 98 on the end face 136 with respect to the position of pin member 144.In addition, the effective length of pin member 144 is changeable, thereby when input face F overlaps with datum level C, makes display image zero setting (no longer demonstrating the amount of movement of input face with respect to datum level).
The present invention can implement to be different from other above-mentioned form.Scope of the present invention limits based on the foregoing of claim rather than invention.
Claims (19)
1. carpenter's flat plane system comprises:
A blade assembly;
A pedestal is used for the supporting blade assembly, thereby blade assembly rotates around blade axis, and wherein, blade assembly forms the cutting post with datum level, and this datum level is a level, and tangent with cutting post bottom;
A loading bay is supported movably by pedestal, and wherein, loading bay has an input face, thereby forms input plane; Loading bay forms first supporting surface, pedestal forms the first base supports face, the first base supports face is not parallel to vertical reference line, first supporting surface of this first base supports face and this is meshed, thereby the support loading bay, and loading bay moves relative to pedestal by the direction that is parallel to this first base supports face;
A measuring system comprises:
A retainer, the pedestal that is rigidly connected, wherein, retainer has the stop surfaces that comprises stop surface,
A gauge assembly comprises:
A gauge is fixed on the loading bay,
A pin member is supported by gauge, and pin member can contact stop surface,
A display part; Wherein,
Along with loading bay moves relative to pedestal, gauge just moves relative to one of loading bay and pin member;
Gauge produces measuring-signal, the amount of movement of one of the expression relative loading bay of gauge and pin member, and wherein, measuring-signal is corresponding to the amount of movement of loading bay relative datum face;
Display part produces display image based on measuring-signal, wherein, and display image video data, the amount of movement of this data representation input face relative datum face.
2. carpenter's flat plane according to claim 1 system is characterized in that,
The gauge loading bay that is rigidly connected;
Pin member is supported movably by gauge;
Gauge produces measuring-signal, the amount of movement of the relative pin member of expression gauge.
3. carpenter's flat plane according to claim 2 system is characterized in that, gauge supports pin member, thereby this pin member moves relative to gauge along the pin member longitudinal axis.
4. carpenter's flat plane according to claim 2 system is characterized in that also comprise: an installed part, gauge and loading bay are used to be rigidly connected.
5. carpenter's flat plane according to claim 1 system is characterized in that,
The gauge pin member that is rigidly connected;
Gauge is supported movably by loading bay;
Gauge produces measuring-signal, the amount of movement of the relative loading bay of expression gauge.
6. carpenter's flat plane according to claim 5 system is characterized in that, also comprises: a track, and the loading bay that is rigidly connected, wherein, and the rail supported gauge, thus this gauge moves relative to loading bay along the track longitudinal axis.
7. carpenter's flat plane according to claim 1 system is characterized in that input plane is basically parallel to datum level.
8. carpenter's flat plane according to claim 1 system is characterized in that, stop surface forms stop surfaces, and wherein, stop surfaces is basically parallel to input face.
9. carpenter's flat plane according to claim 7 system is characterized in that, stop surface forms stop surfaces, and wherein, stop surfaces is basically parallel to input face.
10. carpenter's flat plane according to claim 1 system is characterized in that display part comprises:
Display unit is used for generating display image based on measuring-signal;
Cable is used for transmitting measuring-signal from gauge to display unit.
11. carpenter's flat plane according to claim 10 system is characterized in that display part also comprises: a support member, be used to support display unit, the user can see display image in the normal running of carpenter's flat plane system.
12. a Work piece processing method may further comprise the steps:
Carpenter's flat plane is provided, comprises a blade assembly, a pedestal, the loading bay of a formation input face, a discharge pedestal that forms output face;
Cutter shaft, thus this blade assembly rotates relative to pedestal around blade axis, wherein, blade assembly forms the cutting post that comprises datum level, and this datum level is a level, and tangent with cutting post bottom;
Between first and second position, move loading bay relative to pedestal, thereby regulate the depth of cut of carpenter's flat plane; Described primary importance is that the input face of loading bay is at least with the datum level coplanar or be higher than the position of datum level; The described second place is that low and its reduction amount is equivalent to the position of depth of cut than datum level for the input face of loading bay;
The retainer that is rigidly connected on pedestal comprises a stop surface that forms stop surfaces;
Gauge is fixed on the loading bay;
Gauge supports pin member, thereby makes pin member contact stop surface;
Gauge is moved relative to one of loading bay and pin member, thereby loading bay is moved relative to pedestal;
Generate measuring-signal, the amount of movement of one of the expression relative loading bay of gauge and pin member, wherein, measuring-signal is corresponding to the amount of movement of loading bay relative datum face;
Generate display image based on measuring-signal, wherein, display image demonstrates data, the amount of movement of this data representation loading bay relative datum face.
13. method according to claim 12 is characterized in that, comprises that also the step of alignment gauge spare is as follows:
Loading bay is set, thereby makes input face be parallel to datum level;
Regulate measuring-signal, thereby when input face overlaps with datum level, make display image no longer demonstrate the amount of movement of input face relative datum face.
14. method according to claim 13 is characterized in that, also comprises the following steps:
Gauge and loading bay are rigidly connected;
Gauge supports pin member movably;
Produce measuring-signal, the amount of movement of the relative pin member of expression gauge.
15. method according to claim 14 is characterized in that, comprise the following steps: that also gauge supports pin member, thereby this pin member moves relative to the longitudinal axis of gauge along pin member.
16. method according to claim 13 is characterized in that, also comprises the following steps:
Gauge and pin member are rigidly connected;
Loading bay supports gauge movably;
Produce measuring-signal, the amount of movement of the relative loading bay of expression gauge.
17. method according to claim 16 is characterized in that, also comprise the following steps: to be rigidly connected track and loading bay, thus making the rail supported gauge, this gauge moves relative to the longitudinal axis of loading bay along track.
18. method according to claim 13 is characterized in that, also comprises the following steps:
The step that generates display image also comprises:
Display unit is provided, is used for generating display image based on measuring-signal;
Cable is provided, is used for transmitting measuring-signal to display unit from gauge.
19. a measuring system is used for regulator system, comprising:
A pedestal, loading bay, a discharge pedestal, a blade that forms input face are supported by pedestal, thereby make the rotation of blade form datum level, and this datum level is a level, and tangent with cutting post bottom;
A retainer, be rigidly connected one of loading bay and pedestal, wherein, retainer forms stop surfaces,
Protractor member comprises:
A gauge is supported by loading bay,
A pin member is supported by gauge, thereby makes pin member contact stop surface,
A display part; Wherein, along with loading bay moves relative to pedestal, gauge just produces measuring-signal, the amount of movement of one of the relative pedestal of expression gauge, loading bay and pin member, and wherein, measuring-signal is corresponding to the amount of movement of input face relative datum face;
Display part produces display image based on measuring-signal, wherein, and display image video data, the amount of movement of this data representation input face relative datum face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101422316A CN101332610B (en) | 2007-06-25 | 2007-08-17 | Woodworker planer input surface height measuring system and method |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
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| CN200710128058 | 2007-06-25 | ||
| CN200710128058.4 | 2007-06-25 | ||
| CN2007101422316A CN101332610B (en) | 2007-06-25 | 2007-08-17 | Woodworker planer input surface height measuring system and method |
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| Publication Number | Publication Date |
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| CN101332610A CN101332610A (en) | 2008-12-31 |
| CN101332610B true CN101332610B (en) | 2011-08-10 |
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| CN2007101422316A Expired - Fee Related CN101332610B (en) | 2007-06-25 | 2007-08-17 | Woodworker planer input surface height measuring system and method |
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| CN106002575A (en) * | 2016-07-16 | 2016-10-12 | 方小玲 | High-precision cutting machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6058993A (en) * | 1997-12-19 | 2000-05-09 | Michael Weinig Aktiengesellschaft | Device for machining, preferably shaping machining, of workpieces of wood, plastic etc. and method for adjusting the spindle of such device |
| US6283180B1 (en) * | 2000-11-09 | 2001-09-04 | Pei-Lieh Chiang | Wood planing machine |
| CN2467291Y (en) * | 2001-03-16 | 2001-12-26 | 巨庭机械股份有限公司 | High display device for wood planing machine |
| US6474379B1 (en) * | 1999-12-16 | 2002-11-05 | Merritt Plywood Machinery, Inc. | Automatic flitch planer |
| US6510879B1 (en) * | 2001-10-19 | 2003-01-28 | Bor Yann Chuang | Device of depth index of a planing machine |
-
2007
- 2007-08-17 CN CN2007101422316A patent/CN101332610B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6058993A (en) * | 1997-12-19 | 2000-05-09 | Michael Weinig Aktiengesellschaft | Device for machining, preferably shaping machining, of workpieces of wood, plastic etc. and method for adjusting the spindle of such device |
| US6474379B1 (en) * | 1999-12-16 | 2002-11-05 | Merritt Plywood Machinery, Inc. | Automatic flitch planer |
| US6283180B1 (en) * | 2000-11-09 | 2001-09-04 | Pei-Lieh Chiang | Wood planing machine |
| CN2467291Y (en) * | 2001-03-16 | 2001-12-26 | 巨庭机械股份有限公司 | High display device for wood planing machine |
| US6510879B1 (en) * | 2001-10-19 | 2003-01-28 | Bor Yann Chuang | Device of depth index of a planing machine |
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| CN101332610A (en) | 2008-12-31 |
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