CN201722784U - Truss plate for timber buildings - Google Patents
Truss plate for timber buildings Download PDFInfo
- Publication number
- CN201722784U CN201722784U CN2010201230421U CN201020123042U CN201722784U CN 201722784 U CN201722784 U CN 201722784U CN 2010201230421 U CN2010201230421 U CN 2010201230421U CN 201020123042 U CN201020123042 U CN 201020123042U CN 201722784 U CN201722784 U CN 201722784U
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- plate
- tooth
- punching
- junction
- timber
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Abstract
The utility model provides a truss plate for timer buildings, which is a toothed plate made of a galvanized steel sheet and with a plurality of teeth, wherein the teeth which are perpendicular to the surface of the steel sheet are punched via a unidirectional punching process. The truss plate is characterized in that no punch hole is arranged within a range of 14.5-29mm at the connecting portion of the truss plate. The truss plate is simple in manufacturing and convenient and labor-saving in use, can be prefabricated and manufactured in batch, and is suitable for industrial production. Further, as the range without punch holes is expanded properly, strength of connecting junctions can be increased properly, and timber edges can not be cracked, thereby expanding service range and environments of connection of the truss plate, and prolonging service life of trusses connected by the truss plates.
Description
Technical field
The utility model is the connector about a kind of plate for timber-construction, specifically is meant a kind of tooth plate of plate for timber-construction, is used for that timber truss structure node such as roof truss connects or the spreading of tension member.
Background technology
In timber buildings, traditional wooden construction connects, as: tooth connection, the connection of the tenon fourth of the twelve Earthly Branches, bolt connection etc., owing to make complexity, can't realize shifting to an earlier date prefabricated reaching in batch and make, be unsuitable for suitability for industrialized production.Occurred in recent years can suitability for industrialized production tooth plate connect.
Tooth plate (Truss Plate or Metal-plate connector) is a kind of through processing such as zinc-plated or aluminum-zinc alloy, the high-strength steel sheet that has the plate tooth that is stamped to form with mould again, it is the major metal connector in the light-duty wooden, be by the plate tooth being pressed into the effect that the bridge that need to connect reaches connection respectively during use, tooth plate connects that the node that is applicable to truss in the light-duty wooden building connects or the spreading of tension member (can referring to China's " Code for design of timber structures " GB 50005-2003).
The structure of common tooth plate sees also shown in Figure 1, this tooth plate 1 is to be stamped out through unidirectional punching by galvanized sheet metal a plurality ofly to make perpendicular to the plate tooth 2 of surface of steel plate, on galvanized sheet metal, form a plurality of punchings 11 simultaneously, each punching 11 forms the plate tooth 2 of a pair of (two) basic symmetry, lay respectively at the two ends of this punching 11, the top of described plate tooth 2 forms the tip and has certain sharpness, conveniently to be pressed into timber, please in conjunction with referring to shown in Figure 2, the length of each plate tooth 2 (highly) is consistent, be generally about 8mm, be generally less than 10mm, the concrete shape of plate tooth 2 may be different slightly variant because of the manufacturer.Usually, a plurality of punchings 11 and plate tooth 2 are horizontally-arranged at a certain distance on tooth plate 1, vertical setting of types is evenly distributed, punching 11 length directions are consistent with tooth plate 1 length direction, each punching 11 on tooth plate 1 width in every row's punching can interlacedly be arranged and (is presented among the figure to arrange altogether on tooth plate 1 length direction 7 horizontally-arranged plate teeth are arranged, row has 4 vertical setting of types plate teeth altogether on tooth plate 1 width), row's spacing uniformity is generally about 8.5～10mm.Usually connecting portion is positioned at the center of tooth plate length direction, described plate tooth is divided into the plate tooth (the plate tooth of close connector connecting portion) of junction and away from the plate tooth of junction (on the tooth plate length direction from connecting portion plate tooth far away, or claim the margin plate tooth).
Studies show that, tooth plate connects the internal force maximum of centerline tooth plate steel plate, and the intensity of steel plate has been cut down in the tooth plate punching, the tooth plate fracture that causes the punching position easily at connecting portion place, and cause the timber splitting of edge easily, had a strong impact on the scope of application and environment for use that tooth plate connects.
The utility model content
Main purpose of the present utility model is the shortcoming at existing tooth plate connector connecting portion intensity difference, and research provides a kind of tooth plate, to guarantee the intensity of connecting portion, improves the rigidity of connected node.
For reaching above-mentioned purpose, the utility model provides a kind of tooth plate of plate for timber-construction, this tooth plate is to stamp out the band tooth plate of a plurality of plate teeth perpendicular to surface of steel plate by galvanized steel plain sheet through unidirectional punching, wherein, and no punching in connecting portion 14.5～29mm scope of this tooth plate.
The utility model according to a large amount of experimental studies, has been readjusted the no punching scope of connecting portion at the shortcoming of prior art tooth plate connector.By suitably strengthening no punching scope, can suitably improve the rigidity of connected node, node rigidity is big more, just more little in identical loading condition lower node distortion, can prevent that the phenomenon generation of splitting from may appear in the timber edge, thereby expanded the scope of application and environment for use that tooth plate connects, prolonged the application life of tooth plate connection truss.
Key of the present utility model is to reach the effect that improves node rigidity by the no punching scope that increases connecting portion.Other structure designs about tooth plate can be carried out with reference to prior art.
According to specific embodiments of the present utility model, the tooth plate of plate for timber-construction of the present utility model, wherein, each punching forms the plate tooth of two symmetries, lays respectively at the two ends of this punching, and the top of described plate tooth forms the tip and has sharpness; Described punching on the tooth plate width, in a row arrange and every row's punching in the interlaced arrangement of each punching; Described punching length direction is consistent with the tooth plate length direction, described plate tooth be divided into the plate tooth of junction and on the tooth plate length direction away from the plate tooth of junction.
The designer finds that under study for action in some specific embodiments of this utility model, by no punching scope is suitably enlarged, the ultimate bearing capacity of plate tooth slightly descends.If it is excessive not have the punching scope,, then can cause the decline significantly of tooth plate plate tooth ultimate bearing capacity for example greater than 29mm.In order further to improve the ultimate bearing capacity of plate tooth, according to preferred specific embodiments of the present utility model, the tooth plate of plate for timber-construction of the present utility model, wherein, in center line (usually the center line of tooth plate length direction be the junction of the corresponding connector) both sides of tooth plate perpendicular to the tooth plate length direction, respectively be provided with 2 rows above punching and the corresponding plate tooth parallel with described center line, each 1 row's plate tooth of the most close center line both sides is the plate tooth of junction, remaining plate tooth is the plate tooth away from the junction, has a row at least away from the height of the plate tooth of the junction height greater than the plate tooth of junction.Preferably, wherein, in the center line both sides of tooth plate perpendicular to the tooth plate length direction, respectively be provided with parallel with described center line 2 rows or 3 rows or 4 row's punching and corresponding plate teeth, the height of that row's plate tooth of decentre line is higher than the height near that row's plate tooth of center line farthest.Be longer than the plate tooth of junction by increase away from the length of the plate tooth of junction, can strengthen the frictional force between plate tooth and the timber, increase is away from the resistance to plucking ability of the plate tooth of junction, the distribution of internal force that tooth plate is connected is more reasonable, slowed down the connection bearing capacity decline that causes owing to extracting, and then improved the bearing capacity that tooth plate connects away from the plate tooth of junction.
According to specific embodiments of the present utility model, the tooth plate of plate for timber-construction of the present utility model, wherein, the height of described plate tooth away from the junction is 9～13mm, the high 7～11mm of height of the plate tooth of described junction.
According to specific embodiments of the present utility model, the tooth plate of plate for timber-construction of the present utility model, wherein, hole length is 11～16mm, the punching width is 3～4mm, the plate tooth height is 8～11mm, and the spacing of adjacent two punchings on the tooth plate width in every row's punching is 3～4mm, and the spacing of adjacent two punchings is 8.5～29mm on the tooth plate length direction.For example, according to more specifically embodiment of the present utility model, the tooth plate of plate for timber-construction of the present utility model, wherein, the punching length of described plate tooth correspondence away from the junction is 14～16mm, and width is 3～4mm, the punching length 11～13mm of the plate tooth correspondence of described junction, width is 3～4mm, and the spacing of adjacent two punchings on the tooth plate width in every row's punching is 3～4mm, and the toothrow spacing is 8.5～29mm.Wherein, the width of the punching that the punching of described plate tooth correspondence away from the junction and the plate tooth of described junction are corresponding can be consistent (the plate facewidth degree away from the plate facewidth degree of junction and junction can be consistent), preferably about the punching long 3mm of length than the plate tooth correspondence of junction away from the punching of the plate tooth correspondence of junction.The interlaced distance of each punching on tooth plate width Fang Xiang in every row's punching is generally 1mm～3mm.Other structures and the performance of tooth plate meets " Code for design of timber structures " GB 50005-2003, the thickness of tooth plate, width, length can have different size according to the practical application difference, for example thickness is generally about 1mm, width is generally 50～100mm, it (can be that the single tooth plate that uses with reality is a unit in the production that length is generally 50mm～250mm, a plurality of tooth plates unit repeats in the longitudinal direction and forms longer tooth plate, length is blocked into each short tooth plate more as required usually at several meters during actual the use).
According to preferred specific embodiments of the present utility model, the tooth plate of plate for timber-construction of the present utility model, wherein, the punching length of described plate tooth correspondence away from the junction is 14～16mm, and width is 3～4mm, the punching length 11～13mm of the plate tooth correspondence of described junction, width is 3～4mm, the spacing of adjacent two punchings on the tooth plate width in every row's punching is 3～4mm, and except that the connecting portion of described tooth plate, other position toothrow spacings are 8.5～14.5mm.
According to specific embodiments of the present utility model, the tooth plate of plate for timber-construction of the present utility model, wherein, the high 1～2mm of height of the plate tooth of the aspect ratio junction of described plate tooth away from the junction.
According to specific embodiments of the present utility model, the tooth plate of plate for timber-construction of the present utility model, wherein, the sharpness of described plate tooth away from the junction is greater than the sharpness of the plate tooth of junction.According to specific embodiments of the present utility model, the tooth plate of plate for timber-construction of the present utility model, wherein, described plate crown portion has torsion resistance, can further increase frictional force and mechanical snap power between plate tooth and the timber.
According to specific embodiments of the present utility model, the tooth plate of plate for timber-construction of the present utility model, wherein, described plate tooth is provided with the indentation that is depressed in the plate tooth surface at least together, can further increase frictional force and mechanical snap power between plate tooth and the timber, described indentation is depressed in the degree of depth of plate tooth surface smaller or equal to 30% of tooth plate steel plate thickness, and the width of indentation is smaller or equal to 0.5mm.More specifically, described indentation length direction can～135 ° angles at 45 with plate tooth height vertical direction.2～4 road indentations are set, these indentations setting parallel to each other on the same plate tooth on preferred each plate tooth.More preferably on each plate tooth three road indentations are set, in the average height position of per pass indentation on plate tooth height direction, described three road indentations lay respectively at 1/3,1/2,2/3 place of plate tooth height.Described indentation is preferably placed at the lateral surface of the plate back of tooth to punching.
The preparation method of the tooth plate of plate for timber-construction of the present utility model can be carried out according to the preparation method of tooth plate in the prior art, just the connecting portion place does not have the punching scope and suitably enlarges, perhaps further wherein will suitably increase away from the plate tooth of junction and corresponding punching length plate tooth and the punching length than the junction, for example be to utilize mould that the unidirectional punching of galvanized sheet metal is stamped out a plurality ofly to make perpendicular to the plate tooth of surface of steel plate.
The tooth plate of plate for timber-construction of the present utility model is that the plate tooth is pressed into the truss member that needs connection respectively, thereby reaches the effect of connection that in addition, tooth plate of the present utility model also can be used for the spreading of truss member when using.Because tooth plate connecting portion of the present utility model does not have the suitable expansion of punching scope, can suitably improve the rigidity of connected node, prevent that the phenomenon generation of splitting from may appear in the timber edge.
In sum, the tooth plate of plate for timber-construction of the present utility model has following advantage:
The tooth plate of plate for timber-construction of the present utility model, suitably enlarge connecting portion not towards the tooth scope, can prevent to cross the nearly splitting that takes place from the timber edge because of the plate tooth pitch, and guaranteed the intensity of connecting portion, improve the rigidity of connected node, expanded the scope of application and environment for use that tooth plate connects.The tooth plate of plate for timber-construction of the present utility model is made simple, and easy to use saving time can shift to an earlier date prefabricated and making in batch, is suitable for suitability for industrialized production.The utility model has further strengthened resistance to plucking ability away from the plate tooth of junction away from the increase of the plate tine length of junction, has improved whole plate tooth ultimate bearing capacity.The utility model further is provided with the resistance to plucking ability that indentation can further increase the plate tooth on the plate tooth, improve the bearing capacity that tooth plate connects.The utility model is to design through Rational structure on the basis of following the Code for design of timber structures requirement, for whole tooth plate connects timber truss industry, because connecting, tooth plate is widely used, application of the present utility model can improve tooth plate and connect the panel point performance, the sector is saved housing cost have great importance, be beneficial to and promote China's modern wood structure The development of architecture.
Description of drawings
Fig. 1 is the perspective view of the tooth plate of plate for timber-construction in the prior art.
Fig. 2 is the side-looking structural representation of the shape of a horizontally-arranged plate tooth in the tooth plate that shows plate for timber-construction in the prior art.
Fig. 3 is the plan structure schematic diagram of tooth plate of the plate for timber-construction of a specific embodiment of the present utility model.
Fig. 4 is the side-looking structural representation of the shape of a horizontally-arranged plate tooth in the tooth plate of the plate for timber-construction of a demonstration specific embodiment of the present utility model.
Fig. 5 is the plan structure schematic diagram of another kind of form of the tooth plate of plate for timber-construction of the present utility model.
The specific embodiment
Further describe the design feature and the beneficial effect that is had of the tooth plate of plate for timber-construction of the present utility model below by specific embodiment, but therefore the utility model is not subjected to any restriction.
See also Fig. 3 and shown in Figure 4, the tooth plate 1 of the plate for timber-construction of present embodiment, be to stamp out through unidirectional punching by galvanized sheet metal a plurality ofly to make perpendicular to the plate tooth 2 of surface of steel plate, on galvanized sheet metal, form a plurality of punchings 11 simultaneously, each punching 11 forms the plate tooth 2 of a pair of (two) basic symmetry, lay respectively at the two ends of this punching 11, the top of described plate tooth 2 forms the tip and has certain sharpness, conveniently to be pressed into timber.Punching 11 length directions are consistent with tooth plate 1 length direction, and a plurality of punchings 11 and plate tooth 2 horizontally-arranged on tooth plate 1 length direction is arranged, and vertical setting of types is arranged on tooth plate 1 width, and each punching 11 interlaced arrangement in every row's punching on tooth plate 1 width.In the center line both sides of tooth plate, respectively be provided with 2 row punching and the corresponding plate teeth parallel with described center line perpendicular to the tooth plate length direction.
In the present embodiment, described tooth plate 1 galvanized sheet metal thickness is about 1mm, and the height H 1 of the plate tooth of described junction is 8.8mm, and its corresponding punching length L 1 is 12mm, and width W is 3.5mm; The height H 2 of described plate tooth away from the junction is 10.5mm, and its corresponding punching length L 2 is 15mm, and width W is 3.5mm; The spacing d of adjacent two punchings on tooth plate 1 width in every row's punching is 3.4mm, and the interlaced distance of each punching in every row's punching is 3mm, and the space D 1 of adjacent two row's punchings is about 29mm on tooth plate 1 length direction, and D2 is about 14.5mm.Tooth plate length and width can have different size and (for example see also shown in Figure 5, with tooth plate shown in Figure 3 is a unit, a plurality of tooth plates unit connects in the longitudinal direction and forms longer tooth plate, can block into each short tooth plate as required during actual the use, should note making both sides, single tooth plate junction to have symmetrical structure after blocking).
The manufacturing process of the tooth plate of the plate for timber-construction of present embodiment can be carried out according to the prior art operation, and just punching and plate teeth size away from the junction wherein meets designing requirement of the present utility model.The tooth plate of the plate for timber-construction of present embodiment on the make can form certain torsion resistance in described plate tooth 2 tips.
The tooth plate of present embodiment can be by being pressed into the plate tooth respectively the effect that the truss member that needs connection reaches connection.The tooth plate of present embodiment can also be used for the spreading of truss member.
Relevant regulations by " Code for design of timber structures " GB 50005-2003, the tooth plate connected node away from the plate tooth lengthening tooth plate of junction that uses the utility model embodiment is carried out extension test respectively, and with the short tooth plate of toothrow spacing as a comparison case 1,2 (in the tooth plate of this Comparative Examples 1, compare with the tooth plate among the utility model embodiment, wherein toothrow space D 1, D2 all are about 10mm, and the material of tooth plate and other structural parameters are with embodiment 1; In the tooth plate of this Comparative Examples 2, compare with the tooth plate among the utility model embodiment, wherein toothrow space D 1, D2 all are about 10mm, and each plate tooth height is all identical with short slab tooth among the embodiment 1, and the material of tooth plate and other structural parameters are with embodiment 1).Each test result writes down as following table:
| The tooth plate type | The node peak load, KN | Plate tooth ultimate bearing capacity, MPa | 0.38mm slippage place node rigidity, KN/mm | Peak load place node rigidity, KN/mm |
| Plate tine length unanimity (Comparative Examples 2) | 18.29? | 1.38? | 35.36? | 15.85? |
| Away from the plate tooth lengthening tooth plate of junction, no punching (Comparative Examples 1) in the about 10mm scope in junction | 20.29? | 1.62? | 36.30? | 16.10? |
| Away from the plate tooth lengthening tooth plate of junction, no punching (embodiment 1) in the 29mm scope of junction | 19.31? | 1.52? | 42.51? | 20.77? |
Annotate: the structural type of node is that load is parallel to wood grain, and is parallel to the tooth plate main shaft.
Payload values in the table and rigidity value are the average of one group of specimen test value.
According to GB, the surperficial net area (A) of plate tooth ultimate bearing capacity test value=ultimate load/tooth plate.Minimum value/coefficient k in plate tooth ultimate bearing capacity (P)=tooth ultimate bearing capacity test value; To without flame treatment, the dimension stock of moisture content≤15%, k=1.69+0.24r; The ratio of r-dead load standard value and mobile load standard value, 1.0～5.0; If r＜1.0 or＞5.0 o'clock, then get r=1.0 or 5.0.
Rigidity value in the table is the secant rigidity value.
By test result as can be seen, the utility model is by suitably enlarging no punching scope, although plate tooth ultimate bearing capacity slightly descends, but node rigidity is then improved significantly, node rigidity is big more, just more little in identical loading condition lower node distortion, expanded the scope of application and environment for use that tooth plate connects, prolonged the application life of tooth plate connection truss.The plate tooth ultimate bearing capacity of the plate tooth lengthening tooth plate away from the junction further of the present utility model is apparently higher than the consistent tooth plate of plate tine length, prove absolutely that increase away from the plate tine length of junction has improved the resistance to plucking ability away from the plate tooth of junction effectively, slowed down owing to extract the connection bearing capacity that causes away from the plate tooth of junction and descended, make the plate tooth of junction bring into play effect fully, thereby whole plate tooth ultimate bearing capacity all is improved.
Claims (9)
1. the tooth plate of a plate for timber-construction, this tooth plate are to stamp out the band tooth plate of a plurality of plate teeth perpendicular to surface of steel plate by galvanized steel plain sheet through unidirectional punching, it is characterized in that: no punching in connecting portion 14.5～29mm scope of this tooth plate.
2. the tooth plate of plate for timber-construction according to claim 1 is characterized in that: each punching forms the plate tooth of two symmetries, lays respectively at the two ends of this punching, and the top of described plate tooth forms the tip and has sharpness; Described punching on the tooth plate width, in a row arrange and every row's punching in the interlaced arrangement of each punching; Described punching length direction is consistent with the tooth plate length direction, described plate tooth be divided into the plate tooth of junction and on the tooth plate length direction away from the plate tooth of junction.
3. the tooth plate of plate for timber-construction according to claim 2, it is characterized in that: in the center line both sides of tooth plate perpendicular to the tooth plate length direction, respectively be provided with parallel with described center line 2 rows or 3 rows or 4 row's punching and corresponding plate teeth, the height of that row's plate tooth of decentre line is higher than the height near that row's plate tooth of center line farthest.
4. the tooth plate of plate for timber-construction according to claim 2 is characterized in that: the height of described plate tooth away from the junction is 9～13mm, the high 7～11mm of height of the plate tooth of described junction.
5. the tooth plate of plate for timber-construction according to claim 2, it is characterized in that: described punching length is 11～16mm, the punching width is 3～4mm, the plate tooth height is 8～11mm, the spacing of adjacent two punchings on the tooth plate width in every row's punching is 3～4mm, and the spacing of adjacent two punchings is 8.5～29mm on the tooth plate length direction.
6. according to the tooth plate of claim 4 or 5 described plate for timber-construction, it is characterized in that: the punching length of described plate tooth correspondence away from the junction is 14～16mm, width is 3～4mm, the punching length 11～13mm of the plate tooth correspondence of described junction, width is 3～4mm, the spacing of adjacent two punchings on the tooth plate width in every row's punching is 3～4mm, and except that the connecting portion of described tooth plate, other position toothrow spacings are 8.5～14.5mm.
7. the tooth plate of plate for timber-construction according to claim 6 is characterized in that: the high 1～2mm of height of the plate tooth of the aspect ratio junction of described plate tooth away from the junction.
8. the tooth plate of plate for timber-construction according to claim 2 is characterized in that: the sharpness of described plate tooth away from the junction is greater than the sharpness of the plate tooth of junction; Described plate crown portion has torsion resistance.
9. the tooth plate of plate for timber-construction according to claim 1, it is characterized in that: described plate tooth is provided with the indentation that is depressed in the plate tooth surface at least together, described indentation is depressed in the degree of depth of plate tooth surface smaller or equal to 50% of tooth plate steel plate thickness, and the width of indentation is smaller or equal to 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201230421U CN201722784U (en) | 2010-03-03 | 2010-03-03 | Truss plate for timber buildings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201230421U CN201722784U (en) | 2010-03-03 | 2010-03-03 | Truss plate for timber buildings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201722784U true CN201722784U (en) | 2011-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201230421U Expired - Lifetime CN201722784U (en) | 2010-03-03 | 2010-03-03 | Truss plate for timber buildings |
Country Status (1)
| Country | Link |
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| CN (1) | CN201722784U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ304080B6 (en) * | 2012-01-24 | 2013-10-02 | Ceské vysoké ucení technické v Praze, Fakulta stavební, Katedra ocelových a drevených konstrukcí | Coupling of wood-based beams connected by means of steel plates with bilaterally pressed pins with a foundation plate |
| CN107620388A (en) * | 2017-09-21 | 2018-01-23 | 南京工业大学 | The overlapping rubber attachment structure of rough ground and panel |
| CN110374192A (en) * | 2019-08-02 | 2019-10-25 | 上海理工大学 | Orthogonal laminated wood combines high-rise Wood construction structure |
-
2010
- 2010-03-03 CN CN2010201230421U patent/CN201722784U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ304080B6 (en) * | 2012-01-24 | 2013-10-02 | Ceské vysoké ucení technické v Praze, Fakulta stavební, Katedra ocelových a drevených konstrukcí | Coupling of wood-based beams connected by means of steel plates with bilaterally pressed pins with a foundation plate |
| CN107620388A (en) * | 2017-09-21 | 2018-01-23 | 南京工业大学 | The overlapping rubber attachment structure of rough ground and panel |
| CN107620388B (en) * | 2017-09-21 | 2022-11-15 | 南京工业大学 | Laminated rubber connecting structure of wood keel and panel |
| CN110374192A (en) * | 2019-08-02 | 2019-10-25 | 上海理工大学 | Orthogonal laminated wood combines high-rise Wood construction structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CU01 | Correction of utility model patent |
Correction item: Thirteenth, seventeenth paragraph of instruction Correct: Chong Kongchang 5 0% False: Pore length 30% Number: 04 Page: Description Volume: 27 |
|
| CU03 | Correction of utility model patent gazette |
Correction item: Thirteenth, seventeenth paragraph of instruction Correct: Chong Kongchang 5 0% False: Hole length, 30% Number: 04 Volume: 27 |
|
| ERR | Gazette correction |
Free format text: CORRECT: PARAGRAPH 13, DESCRIPTION, PARAGRAPH 17; FROM: HOLE LENGTH, 30 % TO: PUNCHING LENGTH;50% |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110126 |