CA2803399A1 - A chain of t-nuts - Google Patents
A chain of t-nuts Download PDFInfo
- Publication number
- CA2803399A1 CA2803399A1 CA 2803399 CA2803399A CA2803399A1 CA 2803399 A1 CA2803399 A1 CA 2803399A1 CA 2803399 CA2803399 CA 2803399 CA 2803399 A CA2803399 A CA 2803399A CA 2803399 A1 CA2803399 A1 CA 2803399A1
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- CA
- Canada
- Prior art keywords
- nuts
- shank
- chain
- claws
- metal plate
- 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.)
- Abandoned
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- Automatic Assembly (AREA)
Abstract
There is provided to a chain of T-nuts in which the female screw is precisely worked. There is provided a chain of T-nuts including a plurality of T-nuts 1 connected with bridges 5 in a column, integrally formed from a strip of metal plate. Each of the T-nuts 1 includes a cylindrical shank 2 having openings at both ends, and an internal surface forming a female screw.
Each of the T-nuts includes flanges 5 provided at a periphery of one of the openings at a base side of the shank 2. Each of the T-nuts includes claws 4 provided at the flange 5 to be extended in a direction from the flange to a tip side of the shank 2. The claws 4 are formed by cutting and raised from an outside to an inside in a width direction of the strip of the metal plate.
Each of the T-nuts includes flanges 5 provided at a periphery of one of the openings at a base side of the shank 2. Each of the T-nuts includes claws 4 provided at the flange 5 to be extended in a direction from the flange to a tip side of the shank 2. The claws 4 are formed by cutting and raised from an outside to an inside in a width direction of the strip of the metal plate.
Description
A chain of T-nuts Detailed Description of the Invention Field of the Invention [0001]
The present invention relates to a chain of a plurality of T-nuts that are connected in a column.
Background of the Invention [0002]
Conventionally, there has been taped T-nuts that are connected by using adhesive tape in a column (see e.g., Patent Document 1). Such taped T-nuts have the T-nuts aligned on a tape, so that when driving the T-nuts, it is advantageous that simple driving equipments can be used that do not have an alignment device for aligning the T-nuts.
The present invention relates to a chain of a plurality of T-nuts that are connected in a column.
Background of the Invention [0002]
Conventionally, there has been taped T-nuts that are connected by using adhesive tape in a column (see e.g., Patent Document 1). Such taped T-nuts have the T-nuts aligned on a tape, so that when driving the T-nuts, it is advantageous that simple driving equipments can be used that do not have an alignment device for aligning the T-nuts.
[0003]
However, in producing such taped T-nuts, a process or equipment is required for aligning the T-nuts and applying them on an adhesive tape. Also, when packing up and shipping them, the tape might have been turned away, or some of the T-nuts might have been detached.
These problems might increase the costs and been disadvantageous.
However, in producing such taped T-nuts, a process or equipment is required for aligning the T-nuts and applying them on an adhesive tape. Also, when packing up and shipping them, the tape might have been turned away, or some of the T-nuts might have been detached.
These problems might increase the costs and been disadvantageous.
[0004]
On the other hand, in the arts of wiring of electric system for automobiles and home electronics, a connector with a plurality of terminals is used. In producing such a connector, there has been .. proposed a method for applying to the connector by cutting each of the terminals connected in a chain (see, e.g., Patent Document 2).
On the other hand, in the arts of wiring of electric system for automobiles and home electronics, a connector with a plurality of terminals is used. In producing such a connector, there has been .. proposed a method for applying to the connector by cutting each of the terminals connected in a chain (see, e.g., Patent Document 2).
[0005]
Then, the inventor of the present invention has considered the arts. He has conceived that in carrying out sheet metal work to produce T-nuts from a metal plate, to leave a bridge between adjacent T-nuts in punching to produce T-nuts can make a plurality of T-nuts connected in a chain, which can be replaced with the conventional taped T-nuts.
Prior Art Patent literature [0006]
Patent document 1: JP,2004-17250, A
Patent document 2: JP,2008-34325, A
Summary of the Invention Problem to be solved by the invention [0007]
However, in such a chain of T-nuts, it is required to work for making the female screws of the shank in a state where a plurality of T-nuts are connected. Here, the claws are obstructive so that it becomes difficult to hold the shank, which can make it difficult to perform the female screw processing precisely.
Then, the inventor of the present invention has considered the arts. He has conceived that in carrying out sheet metal work to produce T-nuts from a metal plate, to leave a bridge between adjacent T-nuts in punching to produce T-nuts can make a plurality of T-nuts connected in a chain, which can be replaced with the conventional taped T-nuts.
Prior Art Patent literature [0006]
Patent document 1: JP,2004-17250, A
Patent document 2: JP,2008-34325, A
Summary of the Invention Problem to be solved by the invention [0007]
However, in such a chain of T-nuts, it is required to work for making the female screws of the shank in a state where a plurality of T-nuts are connected. Here, the claws are obstructive so that it becomes difficult to hold the shank, which can make it difficult to perform the female screw processing precisely.
[0008]
In light of the objectives as identified above, the present invention is to provide a chain of T-nuts in which the female screw processing can be performed precisely.
Means for solving problem [0009]
In considering the objectives above, there is provided a chain of T-nuts comprising a plurality of T-nuts connected with bridges in a column, integrally formed from a strip of metal plate. Each of the T-nuts includes a cylindrical shank having openings at both ends, and an internal surface forming a female screw. Each of the T-nuts includes flanges provided at a periphery of one of the openings at a base side of the shank. Each of the T-nuts includes claws provided at the flange to be extended in a direction from the flange to a tip side of the shank. The claws are cut and raised from an outside to an inside in a width direction of the strip of the metal plate. Here, the width direction corresponds to the direction of a width of the strip-like of the metal plate.
In light of the objectives as identified above, the present invention is to provide a chain of T-nuts in which the female screw processing can be performed precisely.
Means for solving problem [0009]
In considering the objectives above, there is provided a chain of T-nuts comprising a plurality of T-nuts connected with bridges in a column, integrally formed from a strip of metal plate. Each of the T-nuts includes a cylindrical shank having openings at both ends, and an internal surface forming a female screw. Each of the T-nuts includes flanges provided at a periphery of one of the openings at a base side of the shank. Each of the T-nuts includes claws provided at the flange to be extended in a direction from the flange to a tip side of the shank. The claws are cut and raised from an outside to an inside in a width direction of the strip of the metal plate. Here, the width direction corresponds to the direction of a width of the strip-like of the metal plate.
[0010]
Thus, the chain of T-nuts of the present invention has the claws that are cut and raised from the outside toward the inside of the width direction of the strip-like metal plate. Therefore, there are no claws formed on the edge periphery of the flange in the width direction.
Therefore, when forming female screw on the inner surface of the shank, the edge periphery of the shank without the claws can be held in the width direction from the outside. As a result, the flange can be held for precise working for making the female screw.
Thus, the chain of T-nuts of the present invention has the claws that are cut and raised from the outside toward the inside of the width direction of the strip-like metal plate. Therefore, there are no claws formed on the edge periphery of the flange in the width direction.
Therefore, when forming female screw on the inner surface of the shank, the edge periphery of the shank without the claws can be held in the width direction from the outside. As a result, the flange can be held for precise working for making the female screw.
[0011]
In the chain of T-nuts of the present invention, the claws can be preferably provided at a position that the claws are not overlapped with the shank in the width direction. In such a configuration, the outer periphery surface of the shank can be held from the outside in the width direction for female screw working. Therefore, further precise working can be expected for providing the female screw.
In the chain of T-nuts of the present invention, the claws can be preferably provided at a position that the claws are not overlapped with the shank in the width direction. In such a configuration, the outer periphery surface of the shank can be held from the outside in the width direction for female screw working. Therefore, further precise working can be expected for providing the female screw.
[0012]
The chain of T-nuts of the present invention can be favorably provided with a pair of bridges between the flanges of T-nuts adjoining. In such a configuration, the chain of T-nuts can be effectively prevented from being twisted.
The chain of T-nuts of the present invention can be favorably provided with a pair of bridges between the flanges of T-nuts adjoining. In such a configuration, the chain of T-nuts can be effectively prevented from being twisted.
[0013]
The chain of T-nuts of the present invention can be favorably provided with a through hole by surrounding the flanges of the T-nuts adjoining, and the pair of the bridges.
In addition, the through hole can be favorably in a shape of an ellipse, a track shape, or a rounded rectangular. In such a configuration, the bridge can be prevented from being bent or twisted at comers of the through hole. Moreover, the cutting-die can be simplified for piercing the through hole.
The chain of T-nuts of the present invention can be favorably provided with a through hole by surrounding the flanges of the T-nuts adjoining, and the pair of the bridges.
In addition, the through hole can be favorably in a shape of an ellipse, a track shape, or a rounded rectangular. In such a configuration, the bridge can be prevented from being bent or twisted at comers of the through hole. Moreover, the cutting-die can be simplified for piercing the through hole.
[0014]
The chain of T-nuts of the present invention can be favorably provided with a through hole by surrounding the flanges of the T-nuts adjoining, and the pair of the bridges.
In addition, slits can be favorably provided at both ends of the width direction of the through hole.
In such a configuration, the slits can be opened such that the pitch of the T-nuts can be adjusted.
The chain of T-nuts of the present invention can be favorably provided with a through hole by surrounding the flanges of the T-nuts adjoining, and the pair of the bridges.
In addition, slits can be favorably provided at both ends of the width direction of the through hole.
In such a configuration, the slits can be opened such that the pitch of the T-nuts can be adjusted.
[0015]
The strip of the metal plate can be favorably punched to form a shape including a circle or approximately ellipse. In addition, a part of a periphery of the shape can be favorably cut and raised to form the claws. In such a configuration, a cutting-die for forming the flange can be simplified.
The strip of the metal plate can be favorably punched to form a shape including a circle or approximately ellipse. In addition, a part of a periphery of the shape can be favorably cut and raised to form the claws. In such a configuration, a cutting-die for forming the flange can be simplified.
[0016]
The shank can be favorably provided with an enlarged portion at a base side thereof in which an outer diameter and an inner diameter of the shank is bigger than those at a tip side of the shank.
In such a configuration, the enlarged portion can be well engaged with a hole of a fixation material when driving the T-nut therein.
The shank can be favorably provided with an enlarged portion at a base side thereof in which an outer diameter and an inner diameter of the shank is bigger than those at a tip side of the shank.
In such a configuration, the enlarged portion can be well engaged with a hole of a fixation material when driving the T-nut therein.
[0017]
The shank can be favorably provided with a portion to be caulked at a tip side of the shank. The portion to be caulked portion can be caulked with a fixation material. In such a configuration, the T-nut can be well fixed with a fixation material.
The shank can be favorably provided with a portion to be caulked at a tip side of the shank. The portion to be caulked portion can be caulked with a fixation material. In such a configuration, the T-nut can be well fixed with a fixation material.
[0018]
The shank can be favorably provided with a deformed portion by concaving a part of an outer surface of the shank. In such a configuration, a bolt screwed inside the shank can be well engaged with the deformed portion to prevent the screwed bold from released.
Effects of the Invention [0019]
As described above, the present invention can provide a good chain of T-nuts with which the female screw is precisely processed on the shank.
Brief Description of the Drawings [0020] 5 Fig. 1(a) is a plan view of a chain of T-nuts concerning the 1st embodiment of the present invention. Fig. 1(b) is a cross section view at the Y-Y line in which a portion to be caulked is not provided on the tip of the shank. Fig. 1(e) is a cross section view at the Y-Y line in which a portion to be caulked is provided on the tip of the shank.
[0020.01]
Fig. 2 Fig. 2(a) and Fig. 2(b) are cross section views at the X-X line of the chain of T-nuts of Fig.
1(b). Fig. 2(c) and Fig. 2(d) are fragmentary perspective views of the chain of T-nuts of Fig.
1(b).
[0020.02]
Fig. 3(a) and Fig. 3(b) are cross section view at the X-X line the chain of T-nuts of Fig. 1 (c).
Fig. 3(c) and Fig. 3(d) are fragmentary perspective views of the chain of T-nuts of Fig. 1(c).
[0020.03]
Fig. 4(a) is a plan view of a chain of T-nuts concerning the 2nd embodiment of the present invention. Fig. 4(b) is a cross section view at the Y-Y line in which a portion to be caulked is not provided on the tip of the shank. Fig. 4(c) is a cross section view at the Y-Y line in which a portion to be caulked is provided on the tip of the shank.
[0020.04]
Fig. 5(a) is a plan view of a chain of T-nuts concerning the 3rd embodiment of the present invention. Fig. 5(b) is a cross section view at the Y-Y line in which a portion to be caulked is not provided on the tip of the shank. Fig. 5(c) is a cross section view at the Y-Y line in which a portion to be caulked is provided on the tip of the shank.
[0020.05]
Fig. 6(a) is a plan view of a chain of T-nuts concerning the 4th embodiment of the present invention. Fig. 6(b) is a cross section view at the Y-Y line in which a portion to be caulked is not provided on the tip of the shank. Fig. 6(c) is a cross section view at the Y-Y line in which a portion to be caulked is provided on the tip of the shank.
[0020.06]
Fig. 7(a) is a plan view of a chain of T-nuts concerning the 5th embodiment of the present invention. Fig. 7(b) is a cross section view at the Y-Y line in which a portion to be caulked is not provided on the tip of the shank. Fig. 7(c) is a cross section view at the Y-Y line in which a portion to be caulked is provided on the tip of the shank.
[0020.07]
Fig. 8(a) is a plan view of a chain of T-nuts concerning the 6th embodiment of the present invention. Fig. 8(b) is a cross section view at the Y-Y line in which a portion to be caulked is not provided on the tip of the shank. Fig. 8(c) is a cross section view at the Y-Y line in which a portion to be caulked is provided on the tip of the shank.
[0020.08]
Fig. 9(a) is a plan view showing the process to provide the female screw on the internal surface of the shank in the chain of T-nuts shown in Fig. 1. Fig. 9(b) is a cross sectional side view thereof. Fig. 9(c) is a cross section view at the Z-Z line of Fig. 9(a).
[0020.09]
Fig. 10 is a view showing an example in which an expanding part is provided on the shank of the chain of T-nuts of the present invention.
[0020.10]
Fig. 11 is a view showing another example in which an expanding part is provided on the shank of the chain of T-nuts of the present invention.
[0020.11]
Fig. 12 is a view showing an example in which another flange part is provided on the chain of T-nuts of the present invention.
[0020.12]
Fig. 13 is a view showing an example of claws adaptable in the chain of T-nuts of the present invention.
[0020.13]
Fig. 14 is a view to explain the situation where the portion to be caulked of the T-nut is bitten into a fixing material.
Description of Embodiments [0021]
Hereinafter, the embodiment of the chain of T-nuts of the present invention is explained in full detail, with reference to the drawings. It should be noted that the scope of the chain of T-nuts of the present invention is not limited to the description of the following embodiments.
The shank can be favorably provided with a deformed portion by concaving a part of an outer surface of the shank. In such a configuration, a bolt screwed inside the shank can be well engaged with the deformed portion to prevent the screwed bold from released.
Effects of the Invention [0019]
As described above, the present invention can provide a good chain of T-nuts with which the female screw is precisely processed on the shank.
Brief Description of the Drawings [0020] 5 Fig. 1(a) is a plan view of a chain of T-nuts concerning the 1st embodiment of the present invention. Fig. 1(b) is a cross section view at the Y-Y line in which a portion to be caulked is not provided on the tip of the shank. Fig. 1(e) is a cross section view at the Y-Y line in which a portion to be caulked is provided on the tip of the shank.
[0020.01]
Fig. 2 Fig. 2(a) and Fig. 2(b) are cross section views at the X-X line of the chain of T-nuts of Fig.
1(b). Fig. 2(c) and Fig. 2(d) are fragmentary perspective views of the chain of T-nuts of Fig.
1(b).
[0020.02]
Fig. 3(a) and Fig. 3(b) are cross section view at the X-X line the chain of T-nuts of Fig. 1 (c).
Fig. 3(c) and Fig. 3(d) are fragmentary perspective views of the chain of T-nuts of Fig. 1(c).
[0020.03]
Fig. 4(a) is a plan view of a chain of T-nuts concerning the 2nd embodiment of the present invention. Fig. 4(b) is a cross section view at the Y-Y line in which a portion to be caulked is not provided on the tip of the shank. Fig. 4(c) is a cross section view at the Y-Y line in which a portion to be caulked is provided on the tip of the shank.
[0020.04]
Fig. 5(a) is a plan view of a chain of T-nuts concerning the 3rd embodiment of the present invention. Fig. 5(b) is a cross section view at the Y-Y line in which a portion to be caulked is not provided on the tip of the shank. Fig. 5(c) is a cross section view at the Y-Y line in which a portion to be caulked is provided on the tip of the shank.
[0020.05]
Fig. 6(a) is a plan view of a chain of T-nuts concerning the 4th embodiment of the present invention. Fig. 6(b) is a cross section view at the Y-Y line in which a portion to be caulked is not provided on the tip of the shank. Fig. 6(c) is a cross section view at the Y-Y line in which a portion to be caulked is provided on the tip of the shank.
[0020.06]
Fig. 7(a) is a plan view of a chain of T-nuts concerning the 5th embodiment of the present invention. Fig. 7(b) is a cross section view at the Y-Y line in which a portion to be caulked is not provided on the tip of the shank. Fig. 7(c) is a cross section view at the Y-Y line in which a portion to be caulked is provided on the tip of the shank.
[0020.07]
Fig. 8(a) is a plan view of a chain of T-nuts concerning the 6th embodiment of the present invention. Fig. 8(b) is a cross section view at the Y-Y line in which a portion to be caulked is not provided on the tip of the shank. Fig. 8(c) is a cross section view at the Y-Y line in which a portion to be caulked is provided on the tip of the shank.
[0020.08]
Fig. 9(a) is a plan view showing the process to provide the female screw on the internal surface of the shank in the chain of T-nuts shown in Fig. 1. Fig. 9(b) is a cross sectional side view thereof. Fig. 9(c) is a cross section view at the Z-Z line of Fig. 9(a).
[0020.09]
Fig. 10 is a view showing an example in which an expanding part is provided on the shank of the chain of T-nuts of the present invention.
[0020.10]
Fig. 11 is a view showing another example in which an expanding part is provided on the shank of the chain of T-nuts of the present invention.
[0020.11]
Fig. 12 is a view showing an example in which another flange part is provided on the chain of T-nuts of the present invention.
[0020.12]
Fig. 13 is a view showing an example of claws adaptable in the chain of T-nuts of the present invention.
[0020.13]
Fig. 14 is a view to explain the situation where the portion to be caulked of the T-nut is bitten into a fixing material.
Description of Embodiments [0021]
Hereinafter, the embodiment of the chain of T-nuts of the present invention is explained in full detail, with reference to the drawings. It should be noted that the scope of the chain of T-nuts of the present invention is not limited to the description of the following embodiments.
[0022]
(The 1st embodiment) Fig. 1(a) shows a chain of T-nuts 10 of the 1st embodiment of the present invention. The chain of T-nuts 10, including T-nut 1, is produced by sheet metal work of the slitter coil (i.e., a strip-shaped metal plate, which is not shown in the drawings) formed by slitting the coil material of the metal plate. In the production thereof, a bridge part 5 is left between adjacent T-nuts 1, thereby resulting in a structure in which a plurality of T-nuts 1 are connected in a shape of column.
(The 1st embodiment) Fig. 1(a) shows a chain of T-nuts 10 of the 1st embodiment of the present invention. The chain of T-nuts 10, including T-nut 1, is produced by sheet metal work of the slitter coil (i.e., a strip-shaped metal plate, which is not shown in the drawings) formed by slitting the coil material of the metal plate. In the production thereof, a bridge part 5 is left between adjacent T-nuts 1, thereby resulting in a structure in which a plurality of T-nuts 1 are connected in a shape of column.
[0023]
As shown in Fig. 2, the T-nut 1 has: the cylindrical shank 2 in which both ends are opened and its internal surface has the female screw 2a; the flange 3 provided at the periphery of the opening at the base side of the shank 2 (i.e., the lower side of Fig. 2); and claws 4 extended from the flange 3 to the tip side of the shank 2 (i.e., the upper side of Fig. 2).
As shown in Fig. 2, the T-nut 1 has: the cylindrical shank 2 in which both ends are opened and its internal surface has the female screw 2a; the flange 3 provided at the periphery of the opening at the base side of the shank 2 (i.e., the lower side of Fig. 2); and claws 4 extended from the flange 3 to the tip side of the shank 2 (i.e., the upper side of Fig. 2).
[0024]
As shown in Fig. 2, a chain of T-nuts 10 include the shank 2 of T-nut 1 of the shank 2, whose internal surface has formed the female screw 2a over almost the total length thereof. By the way, as shown in Fig. 1(c) and Fig.3, the T-nut 11 of the chain of T-nuts 10A can be provided with a tip of the shank 12 which has a portion to be caulked 12b where the female screw is not formed.
The portion to be caulked 12b can bite with the fixation object D for fixation when the T-nut 11 is driven into the fixation object D, as shown in Fig. 14.
As shown in Fig. 2, a chain of T-nuts 10 include the shank 2 of T-nut 1 of the shank 2, whose internal surface has formed the female screw 2a over almost the total length thereof. By the way, as shown in Fig. 1(c) and Fig.3, the T-nut 11 of the chain of T-nuts 10A can be provided with a tip of the shank 12 which has a portion to be caulked 12b where the female screw is not formed.
The portion to be caulked 12b can bite with the fixation object D for fixation when the T-nut 11 is driven into the fixation object D, as shown in Fig. 14.
[0025]
As shown in Fig. 1(a), the flange 3 has been shaped into an approximately hexagon in its plane view. Here, the flange 3 does not have the claws 4 on the sides 3b, 3b at both ends thereof in a width direction, so that when the internal surface of the shank 2 is processed for the female screw, the sides 3b, 3b can be used to be held by a holding means C (see Fig. 9).
As shown in Fig. 1(a), the flange 3 has been shaped into an approximately hexagon in its plane view. Here, the flange 3 does not have the claws 4 on the sides 3b, 3b at both ends thereof in a width direction, so that when the internal surface of the shank 2 is processed for the female screw, the sides 3b, 3b can be used to be held by a holding means C (see Fig. 9).
[0026]
The claws 4 can be formed such that the slitter coil (i.e., strip-like metal plate) is cut and raised from its outer side to its inner side in the width direction (i.e., the upper and lower direction in Fig. 1(a). As shown in Fig. 1(a), the claws can be formed at an inner area in the width direction than the sides 3b, 3b of the flange 3. A pair of the claws 4 are provided at each side of the shank 2 in the column direction of the (i.e., the right and left directions of Fig.
1(a)). A total of two pairs, that is, four claws, are provided. When the T-nut 1 is seen from the perpendicular directions of the center of shank 2 and the column direction of the T-nuts, the claws 4 are provided in a position where they are not overlapped with the shank 2.
By providing the claws 4 in such a position that they are not overlapped with the shank 2 in a view from the width direction, a portion in the width direction of the outer peripheral surface of the shank 2 can be deformed to provide with a concave portion 2e, so that a deformed part 2e can be provided on the female screw 2a. The formation of the deformed part 2e can avoid the bolt screwed with the shank 2 from being detached.
The claws 4 can be formed such that the slitter coil (i.e., strip-like metal plate) is cut and raised from its outer side to its inner side in the width direction (i.e., the upper and lower direction in Fig. 1(a). As shown in Fig. 1(a), the claws can be formed at an inner area in the width direction than the sides 3b, 3b of the flange 3. A pair of the claws 4 are provided at each side of the shank 2 in the column direction of the (i.e., the right and left directions of Fig.
1(a)). A total of two pairs, that is, four claws, are provided. When the T-nut 1 is seen from the perpendicular directions of the center of shank 2 and the column direction of the T-nuts, the claws 4 are provided in a position where they are not overlapped with the shank 2.
By providing the claws 4 in such a position that they are not overlapped with the shank 2 in a view from the width direction, a portion in the width direction of the outer peripheral surface of the shank 2 can be deformed to provide with a concave portion 2e, so that a deformed part 2e can be provided on the female screw 2a. The formation of the deformed part 2e can avoid the bolt screwed with the shank 2 from being detached.
[0027]
The bridge 5 can be formed as follows. When the flange 3 is punched from a slitter coil, a center part between the sides 3a, 3a, opposed to adjacent flanges 3, 3, is left. As such, by leaving a part of the slitter coil as the bridge 5 to connect the T-nuts 1, it can become unnecessary to provide a process or device to align and connect the T-nuts after producing them.
The bridge 5 can be formed as follows. When the flange 3 is punched from a slitter coil, a center part between the sides 3a, 3a, opposed to adjacent flanges 3, 3, is left. As such, by leaving a part of the slitter coil as the bridge 5 to connect the T-nuts 1, it can become unnecessary to provide a process or device to align and connect the T-nuts after producing them.
[0028]
With respect to the chain of T-nuts 10, after completing the spinning of the shank 2, the cutting of the claws 4, and the separation of unnecessary parts (not shown in the drawings) from the flanges 3, a tapper A is used for processing of the female screw 2a on the inner surface of the shank 2, as shown in Fig. 9(b). In processing for the female screw, the shank 2 and the flange 3 are held by a holding means B and C, that are extended in a strip shape from the both sides of the width direction thereof )i.e., the upper and lower direction of Fig. 9(a), and the right and left direction of Fig. 9(c).10 [0029]
In the chain of T-nuts 10, the claws 4 are formed at the position where they are not overlapped with the shank 2 in the view from the width direction (see Fig. 9(b)).
Therefore, the shank 2 can be held from the width direction of the flange 3 (i.e., the upper and lower direction in Fig. (a)) by using a holding means B. Also, since the claws 4 are formed at an inner area than the sides 3b, 3b in the width direction of the flange, the flange 3 can be held by using a holding means C from the width direction. Therefore, a female screw processing can be performed precisely.
With respect to the chain of T-nuts 10, after completing the spinning of the shank 2, the cutting of the claws 4, and the separation of unnecessary parts (not shown in the drawings) from the flanges 3, a tapper A is used for processing of the female screw 2a on the inner surface of the shank 2, as shown in Fig. 9(b). In processing for the female screw, the shank 2 and the flange 3 are held by a holding means B and C, that are extended in a strip shape from the both sides of the width direction thereof )i.e., the upper and lower direction of Fig. 9(a), and the right and left direction of Fig. 9(c).10 [0029]
In the chain of T-nuts 10, the claws 4 are formed at the position where they are not overlapped with the shank 2 in the view from the width direction (see Fig. 9(b)).
Therefore, the shank 2 can be held from the width direction of the flange 3 (i.e., the upper and lower direction in Fig. (a)) by using a holding means B. Also, since the claws 4 are formed at an inner area than the sides 3b, 3b in the width direction of the flange, the flange 3 can be held by using a holding means C from the width direction. Therefore, a female screw processing can be performed precisely.
[0030]
(The 2nd Embodiment) Fig. 4 is a chain of T-nuts 20 of the 2nd embodiment of the present invention.
The chain of T-nuts 20 has the structure in which the adjoining T-nuts 1 are connected by a single bridge 25, in the same manner as the T-nut 10 of the 1st embodiment. As shown in Fig.4(a), the bridge 25 is formed at the edge of the side 3a (i.e., the upper edge in Fig. 4(a) for providing a pair of the claws 4 in the width direction of the flange 3 (i.e., the upper and lower direction of Fig. 4(a)).
It is noted that when connecting the flanges 3, 3 by a single bridge as shown in the first and the second embodiments, the bridge can be provided at any part of the side 3a.
It is also noted that in the embodiments such as the 2nd to the sixth embodiments or other embodiments, the same numerical reference numbers are used for the components which are common to the 1st embodiment, and a detailed description is omitted.
(The 2nd Embodiment) Fig. 4 is a chain of T-nuts 20 of the 2nd embodiment of the present invention.
The chain of T-nuts 20 has the structure in which the adjoining T-nuts 1 are connected by a single bridge 25, in the same manner as the T-nut 10 of the 1st embodiment. As shown in Fig.4(a), the bridge 25 is formed at the edge of the side 3a (i.e., the upper edge in Fig. 4(a) for providing a pair of the claws 4 in the width direction of the flange 3 (i.e., the upper and lower direction of Fig. 4(a)).
It is noted that when connecting the flanges 3, 3 by a single bridge as shown in the first and the second embodiments, the bridge can be provided at any part of the side 3a.
It is also noted that in the embodiments such as the 2nd to the sixth embodiments or other embodiments, the same numerical reference numbers are used for the components which are common to the 1st embodiment, and a detailed description is omitted.
[0031]
(The 3rd Embodiment) Fig.5 is a chain of T-nuts 30 of the 3rd embodiment of the present invention.
In the chain of T-nuts 30, as shown in Fig.5(a), a pair of bridges 35, 35 are provided at the both edges of the side 3a in the width direction (i.e., the vertical direction in Fig. 5(a)) of the flange 3. By connecting the adjacent T-nuts 1, 1 by a pair of bridges 35, 35, a twist of the chain of T-nuts 30 can be effectively prevented. A rectangular through hole 36 is formed in the area surrounded by the pair of bridges 35, 35 and the adjoining flanges 3, 3.
(The 3rd Embodiment) Fig.5 is a chain of T-nuts 30 of the 3rd embodiment of the present invention.
In the chain of T-nuts 30, as shown in Fig.5(a), a pair of bridges 35, 35 are provided at the both edges of the side 3a in the width direction (i.e., the vertical direction in Fig. 5(a)) of the flange 3. By connecting the adjacent T-nuts 1, 1 by a pair of bridges 35, 35, a twist of the chain of T-nuts 30 can be effectively prevented. A rectangular through hole 36 is formed in the area surrounded by the pair of bridges 35, 35 and the adjoining flanges 3, 3.
[0032]
(The 4th Embodiment) Fig. 6 is a chain of T-nuts 40 of the 4th embodiment of the present invention.
As shown in Fig.
6(a), the chain of T-nuts 40 is provided with a pair of bridges 45, 45 between the adjoining flanges 3 in the same manner as the chain of T-nuts 30 according to the 3rd embodiment.
(The 4th Embodiment) Fig. 6 is a chain of T-nuts 40 of the 4th embodiment of the present invention.
As shown in Fig.
6(a), the chain of T-nuts 40 is provided with a pair of bridges 45, 45 between the adjoining flanges 3 in the same manner as the chain of T-nuts 30 according to the 3rd embodiment.
[0033]
In the chain of T-nuts 40, a through hole 46 is formed in a shape of approximate ellipse surrounded by a pair of the bridges 45, 45 and the flanges 3, 3. Thus, by making the through hole 46 into such an elliptic form, it can omit a corner formed on the through hole 46, and therefore, the bridges 45, 45 are prevented from being bent or twisted at corners. Also by making the through hole 46 into such an elliptic form, the composition of a die-cutting mold for forming the through hole 46 can be simplified.
The through hole 46 can be formed into another shape such as a track form or rounded rectangular shape, instead of an ellipse.
In the chain of T-nuts 40, a through hole 46 is formed in a shape of approximate ellipse surrounded by a pair of the bridges 45, 45 and the flanges 3, 3. Thus, by making the through hole 46 into such an elliptic form, it can omit a corner formed on the through hole 46, and therefore, the bridges 45, 45 are prevented from being bent or twisted at corners. Also by making the through hole 46 into such an elliptic form, the composition of a die-cutting mold for forming the through hole 46 can be simplified.
The through hole 46 can be formed into another shape such as a track form or rounded rectangular shape, instead of an ellipse.
[0034]
(The 5th Embodiment) Fig. 7 is a chain of T-nuts 50 of the 5th embodiment of the present invention.
As shown in Fig.
7(a), the chain of T-nuts 50 is also provided with a pair of bridges 55, 55 between the adjoining flanges 3, 3. The bridges 55 are formed into a curved shape in which its central portion is projected to the outside direction in the width direction.
(The 5th Embodiment) Fig. 7 is a chain of T-nuts 50 of the 5th embodiment of the present invention.
As shown in Fig.
7(a), the chain of T-nuts 50 is also provided with a pair of bridges 55, 55 between the adjoining flanges 3, 3. The bridges 55 are formed into a curved shape in which its central portion is projected to the outside direction in the width direction.
[0035]
The through hole 56 surrounded by the flanges 3, 3 and a pair of the bridges 55, 55 is formed in an approximately track shape. By shaping the through hole 56 into a track form, it can omit a corner formed on the through hole 56, and therefore, the bridges 55, 55 can be prevented from being bent or twisted at corners concerned. Also by shaping the through hole 56 into a track form, the composition of a die-cutting mold for forming the through hole 56 can be simplified.
The through hole 56 can be formed into another shape such as ellipse or rounded rectangular instead of such a track form. It is noted that the track shape does not have to have a perfect semicircles at both ends thereof.
The through hole 56 surrounded by the flanges 3, 3 and a pair of the bridges 55, 55 is formed in an approximately track shape. By shaping the through hole 56 into a track form, it can omit a corner formed on the through hole 56, and therefore, the bridges 55, 55 can be prevented from being bent or twisted at corners concerned. Also by shaping the through hole 56 into a track form, the composition of a die-cutting mold for forming the through hole 56 can be simplified.
The through hole 56 can be formed into another shape such as ellipse or rounded rectangular instead of such a track form. It is noted that the track shape does not have to have a perfect semicircles at both ends thereof.
[0036]
A pair of slits 56a, 56a are provided at the both ends of the through hole 56 in the width direction.
In other words, the bridges 5 are fol Hied in such a curved shape, as well as the slits 56a are formed by the through hole 56. Therefore, when producing the chain of T-nuts 50 or when driving them, the chain of T-nuts 50 is pulled in the direction of the column of the T-nut 1 such that the slits 56a can be opened. Thus, the pitch between the T-nuts 1 can be adjusted.
A pair of slits 56a, 56a are provided at the both ends of the through hole 56 in the width direction.
In other words, the bridges 5 are fol Hied in such a curved shape, as well as the slits 56a are formed by the through hole 56. Therefore, when producing the chain of T-nuts 50 or when driving them, the chain of T-nuts 50 is pulled in the direction of the column of the T-nut 1 such that the slits 56a can be opened. Thus, the pitch between the T-nuts 1 can be adjusted.
[0037]
(The 6th Embodiment) Fig. 8 is a chain of T-nuts 60 of the 6th embodiment of the present invention.
In the chain of T-nuts 60, a pair of bridges 65, 65 are provided such that the both ends of the flange 3 in the width direction (i.e., the vertical direction of Fig. 8(a)) are connected, as is shown in Fig.(a). Since the bridges 65, 65 are provided at the outermost edges of the flange 3 in the width direction, the chain of T-nuts 60 can be significantly effectively prevented from being twisted by the bridges , 65,65.
(The 6th Embodiment) Fig. 8 is a chain of T-nuts 60 of the 6th embodiment of the present invention.
In the chain of T-nuts 60, a pair of bridges 65, 65 are provided such that the both ends of the flange 3 in the width direction (i.e., the vertical direction of Fig. 8(a)) are connected, as is shown in Fig.(a). Since the bridges 65, 65 are provided at the outermost edges of the flange 3 in the width direction, the chain of T-nuts 60 can be significantly effectively prevented from being twisted by the bridges , 65,65.
[0038]
(Other Embodiments) Fig. 10 and Fig. 11 show other embodiments of T-nuts 21 and 31, that can be arranged for the chain of T-nuts of the present invention. The T-nut 21 of Fig. 10 has a portion to be caulked 22b at the tip side of the shank 22, and a step barrel portion (i.e., an enlarged portion) at the base side in which the inner diameter and the outer diameter are bigger than those of the tip portion. As shown in Fig. 11, the T-nut 31 has a shank 32 in which a step barrel portion 32d is provided at the base side, and there is no provided a portion to be caulked at the tip side.
(Other Embodiments) Fig. 10 and Fig. 11 show other embodiments of T-nuts 21 and 31, that can be arranged for the chain of T-nuts of the present invention. The T-nut 21 of Fig. 10 has a portion to be caulked 22b at the tip side of the shank 22, and a step barrel portion (i.e., an enlarged portion) at the base side in which the inner diameter and the outer diameter are bigger than those of the tip portion. As shown in Fig. 11, the T-nut 31 has a shank 32 in which a step barrel portion 32d is provided at the base side, and there is no provided a portion to be caulked at the tip side.
[0039]
In all of the T-nuts described above, the flange 3 can be formed into a shape as the flange 23 shown in Fig. 12, having a part of the outer edge thereof shaped circularly.
In case of the flange 23, in order to form the flange 23 and the claws 4, an outer peripheral part 27 of a circle or approximate circular form (e.g., an ellipse is included) is formed by cutting and raising a slitter coil (i.e., strip-like metal). Then, among peripheral edges, the claws 4 are raised to leave a portion 23c. The portions 23a, 23b other than the portion 23c are formed circularly. By forming the flange 23 in such a shape, the mold for forming the flange 23 can be simplified.
It is noted that the form of the flange is not restricted to the form such as a hexagon or circular arc as mentioned above. Without deviating from the spirits of the present invention, a shape surrounded in various kinds of polygon, various kinds of curves, and/or straight lines can be used for it.
In all of the T-nuts described above, the flange 3 can be formed into a shape as the flange 23 shown in Fig. 12, having a part of the outer edge thereof shaped circularly.
In case of the flange 23, in order to form the flange 23 and the claws 4, an outer peripheral part 27 of a circle or approximate circular form (e.g., an ellipse is included) is formed by cutting and raising a slitter coil (i.e., strip-like metal). Then, among peripheral edges, the claws 4 are raised to leave a portion 23c. The portions 23a, 23b other than the portion 23c are formed circularly. By forming the flange 23 in such a shape, the mold for forming the flange 23 can be simplified.
It is noted that the form of the flange is not restricted to the form such as a hexagon or circular arc as mentioned above. Without deviating from the spirits of the present invention, a shape surrounded in various kinds of polygon, various kinds of curves, and/or straight lines can be used for it.
[0040]
As shown in Fig. 3, Fig. 10(b)(d), Fig. 11(b)(d), in the T-nuts 11, 21, and 31, it is possible to14 provide a concave portion 12c, 22c, and 32c on the shanks 12, 22 and 32. Thus, a deformed portion 12e, 22e, and 32e of the female screw can be formed. It is also noted that the shank of all of the T-nuts of the present invention can be provided with such a deformed portion.
As shown in Fig. 3, Fig. 10(b)(d), Fig. 11(b)(d), in the T-nuts 11, 21, and 31, it is possible to14 provide a concave portion 12c, 22c, and 32c on the shanks 12, 22 and 32. Thus, a deformed portion 12e, 22e, and 32e of the female screw can be formed. It is also noted that the shank of all of the T-nuts of the present invention can be provided with such a deformed portion.
[0041]
Also, in the chain of T-nuts of the present invention, the claws 4 as described above can be varied as followed. As shown in Fig. 13(a), an outside end rim can be curved without having notches or hooks. As shown in Fig. 13(b), an outside end rim can be notched.
As shown in Fig.
13(c), an outside end rim can be provided with a hook. Four claws are provided in the description above, there is no restriction regarding the number of the claws.
The number of the claws can be three or less, or instead, five or more.
Also, in the chain of T-nuts of the present invention, the claws 4 as described above can be varied as followed. As shown in Fig. 13(a), an outside end rim can be curved without having notches or hooks. As shown in Fig. 13(b), an outside end rim can be notched.
As shown in Fig.
13(c), an outside end rim can be provided with a hook. Four claws are provided in the description above, there is no restriction regarding the number of the claws.
The number of the claws can be three or less, or instead, five or more.
[0042]
The chain of T-nuts of the present invention is not restricted to the description above. It can contain any combination of the shanks, the flanges, the claws and the bridges.
Also, any known arts regarding the shanks, the flanges, the claws and the bridges can be combined.
Industrial applicability [0043]
Since the female screw portion is processed precisely, the chain of T-nuts of the present invention can be adapted in various T-nuts.
The chain of T-nuts of the present invention is not restricted to the description above. It can contain any combination of the shanks, the flanges, the claws and the bridges.
Also, any known arts regarding the shanks, the flanges, the claws and the bridges can be combined.
Industrial applicability [0043]
Since the female screw portion is processed precisely, the chain of T-nuts of the present invention can be adapted in various T-nuts.
[0044]
The followings are brief description for the numerical references:
10, 10A, 20A, 30, 30A, 40, 40A, 50, 50A,60, 60A, 70, and 70A: the chain T-nut 1, 11, 21, 31: T-nut 2, 12, 22, and 32: Shank15 2a, 12a, 22a, 32a female screw 12b, and 22b: a portion to be caulked 2c, 12c, 22c, and 32c: concave portion 2e, 12e, 22e, and 32e: deformed portion 22d and 32d: step bane! portion (i.e., enlarged portion) 3, and 23: flange 4: claws 5, 25, 35, 45, 55, and 65: bridge 27: a circle or an approximate circular form 36, 46, and 56: through hole [0045]
As one embodiment, a chain oft-nuts are made from a metal plate. The chain oft-nuts is aligned in one line. See Fig. 1. The metal plate consists of three directions: the length direction, the width direction, and the thickness direction.
[0047]
The length direction is defined as corresponding to the line of the chain of the t-nuts. The length direction is the horizontal direction of Fig. 1(a).
[0048]
The width direction is defined as corresponding to the direction perpendicular to the length direction, when viewed from the above of the shank 2. In other words, the width direction corresponds to the direction perpendicular to the length direction on an upper surface of the metal plate. The width direction is the vertical direction of Fig. 1(a).
[0049] 16 The thickness direction is defined as corresponding to the thickness of the metal plate. The thickness direction is the vertical direction of Fig. 1(b).
[0050]
The metal plate has an upper surface and a lower surface. The upper surface is defined as the surface having formed the shank. The lower surface is an opposite surface of the upper surface.
Fig. 1(a) shows the upper surface of the metal plate.
[0051]
The flanges 3 are extended into the width direction of the chain. As described in Fig. 1(a) when viewed from an upper location of the shank 2, the claws 4 are formed closer to the shank 2 than the flange 4, in the width direction. In other words, the flanges 4 are formed outside of the claws 4 in the width direction. In the width direction, where the flanges 4 are formed, no claws are formed. In this configuration, the holding means C as shown in Fig. 9 can stably hold both of the flanges of each t-nut to form the female screw.
[0052]
As shown in Fig. 1(a), the claws 4 are made by cutting and folding the metal plate such that the upper surfaces of the claws are substantially facing to each other. The corner formed at the upper surface of the metal plate by the clams is a line substantially running along the length direction, as shown in e.g., Figs. 1(a) and 2(c).
[0053]
The following invention is described: A chain of T-nuts aligned in one line, the T-nuts being made of a metal plate, the chain of T-nuts comprising: (i) a first T-nut; (ii) a second T-nut; and (iii) a bridge between the first T-nut and the second T-nut, wherein each of the first T-nut and the second T-nut comprises: (a) a shank with a female screw on the shank; (b) two flanges extending in a width direction of the metal plate, and (c) at least two claws provided between the shank and the bridge in a length direction of the metal plate, wherein the length direction corresponds to the direction of said one line, wherein the width direction corresponds to the direction perpendicular to the length direction on an upper surface of the metal plate, wherein in the width direction, where the flanges are formed, no claws are formed.
[0054]
As one embodiment, the following invention is described. A chain of T-nuts aligned in one line, the T-nuts being made of a metal plate, the chain of T-nuts comprising: (i) a first T-nut; (ii) a second T-nut; and (iii) a bridge between the first T-nut and the second T-nut, wherein each of the first T-nut and the second T-nut comprises: (a) a shank with a female screw on the shank; (b) two flanges extending in a width direction of the metal plate, and (c) at least two claws provided between the shank and the bridge in a length direction of the metal plate, wherein in the width direction, where the flanges are formed, no claws are formed.
[0055]
The following invention is described. A chain of T-nuts aligned in one line, the T-nuts being made of a metal plate, the chain of T-nuts comprising: (i) a first T-nut; (ii) a second T-nut; and (iii) a bridge between the first T-nut and the second T-nut, wherein each of the first T-nut and the second T-nut comprises: (a) a shank with a female screw on the shank; (b) two flanges extending in a width direction of the metal plate, and (c) at least two claws provided between the shank and the bridge in a length direction of the metal plate, wherein the length direction corresponds to the direction of said one line, wherein the width direction corresponds to the direction perpendicular to the length direction on an upper surface of the metal plate, wherein a corner formed at the claw on the upper surface of the metal plate is a line substantially running along the length direction.CA 02803399 2013-01-22
The followings are brief description for the numerical references:
10, 10A, 20A, 30, 30A, 40, 40A, 50, 50A,60, 60A, 70, and 70A: the chain T-nut 1, 11, 21, 31: T-nut 2, 12, 22, and 32: Shank15 2a, 12a, 22a, 32a female screw 12b, and 22b: a portion to be caulked 2c, 12c, 22c, and 32c: concave portion 2e, 12e, 22e, and 32e: deformed portion 22d and 32d: step bane! portion (i.e., enlarged portion) 3, and 23: flange 4: claws 5, 25, 35, 45, 55, and 65: bridge 27: a circle or an approximate circular form 36, 46, and 56: through hole [0045]
As one embodiment, a chain oft-nuts are made from a metal plate. The chain oft-nuts is aligned in one line. See Fig. 1. The metal plate consists of three directions: the length direction, the width direction, and the thickness direction.
[0047]
The length direction is defined as corresponding to the line of the chain of the t-nuts. The length direction is the horizontal direction of Fig. 1(a).
[0048]
The width direction is defined as corresponding to the direction perpendicular to the length direction, when viewed from the above of the shank 2. In other words, the width direction corresponds to the direction perpendicular to the length direction on an upper surface of the metal plate. The width direction is the vertical direction of Fig. 1(a).
[0049] 16 The thickness direction is defined as corresponding to the thickness of the metal plate. The thickness direction is the vertical direction of Fig. 1(b).
[0050]
The metal plate has an upper surface and a lower surface. The upper surface is defined as the surface having formed the shank. The lower surface is an opposite surface of the upper surface.
Fig. 1(a) shows the upper surface of the metal plate.
[0051]
The flanges 3 are extended into the width direction of the chain. As described in Fig. 1(a) when viewed from an upper location of the shank 2, the claws 4 are formed closer to the shank 2 than the flange 4, in the width direction. In other words, the flanges 4 are formed outside of the claws 4 in the width direction. In the width direction, where the flanges 4 are formed, no claws are formed. In this configuration, the holding means C as shown in Fig. 9 can stably hold both of the flanges of each t-nut to form the female screw.
[0052]
As shown in Fig. 1(a), the claws 4 are made by cutting and folding the metal plate such that the upper surfaces of the claws are substantially facing to each other. The corner formed at the upper surface of the metal plate by the clams is a line substantially running along the length direction, as shown in e.g., Figs. 1(a) and 2(c).
[0053]
The following invention is described: A chain of T-nuts aligned in one line, the T-nuts being made of a metal plate, the chain of T-nuts comprising: (i) a first T-nut; (ii) a second T-nut; and (iii) a bridge between the first T-nut and the second T-nut, wherein each of the first T-nut and the second T-nut comprises: (a) a shank with a female screw on the shank; (b) two flanges extending in a width direction of the metal plate, and (c) at least two claws provided between the shank and the bridge in a length direction of the metal plate, wherein the length direction corresponds to the direction of said one line, wherein the width direction corresponds to the direction perpendicular to the length direction on an upper surface of the metal plate, wherein in the width direction, where the flanges are formed, no claws are formed.
[0054]
As one embodiment, the following invention is described. A chain of T-nuts aligned in one line, the T-nuts being made of a metal plate, the chain of T-nuts comprising: (i) a first T-nut; (ii) a second T-nut; and (iii) a bridge between the first T-nut and the second T-nut, wherein each of the first T-nut and the second T-nut comprises: (a) a shank with a female screw on the shank; (b) two flanges extending in a width direction of the metal plate, and (c) at least two claws provided between the shank and the bridge in a length direction of the metal plate, wherein in the width direction, where the flanges are formed, no claws are formed.
[0055]
The following invention is described. A chain of T-nuts aligned in one line, the T-nuts being made of a metal plate, the chain of T-nuts comprising: (i) a first T-nut; (ii) a second T-nut; and (iii) a bridge between the first T-nut and the second T-nut, wherein each of the first T-nut and the second T-nut comprises: (a) a shank with a female screw on the shank; (b) two flanges extending in a width direction of the metal plate, and (c) at least two claws provided between the shank and the bridge in a length direction of the metal plate, wherein the length direction corresponds to the direction of said one line, wherein the width direction corresponds to the direction perpendicular to the length direction on an upper surface of the metal plate, wherein a corner formed at the claw on the upper surface of the metal plate is a line substantially running along the length direction.CA 02803399 2013-01-22
Claims (8)
1. A chain of T-nuts comprising a plurality of T-nuts connected with bridges in a column, integrally formed from a strip of metal plate, each of the T-nuts comprising:
a cylindrical shank having openings at both ends, and an internal surface forming a female screw;
flanges provided at a periphery of one of the openings at a base side of the shank; and claws provided at the flange to be extended in a direction from the flange to a tip side of the shank, wherein the claws are cut and raised from an outside to an inside in a width direction of the strip of the metal plate, wherein the claws are provided in such a position that the claws are not overlapped with the shank in a view from the width direction.
a cylindrical shank having openings at both ends, and an internal surface forming a female screw;
flanges provided at a periphery of one of the openings at a base side of the shank; and claws provided at the flange to be extended in a direction from the flange to a tip side of the shank, wherein the claws are cut and raised from an outside to an inside in a width direction of the strip of the metal plate, wherein the claws are provided in such a position that the claws are not overlapped with the shank in a view from the width direction.
2. The chain of T-nuts according to claim 1, wherein a pair of the bridges are provided between the flanges adjoining.
3. A chain of T-nuts comprising a plurality of T-nuts connected with bridges in a column, integrally formed from a strip of metal plate, each of the T-nuts comprising:
a cylindrical shank having openings at both ends, and an internal surface forming a female screw;
flanges provided at a periphery of one of the openings at a base side of the shank; and claws provided at the flange to be extended in a direction from the flange to a tip side of the shank, wherein the claws are cut and raised from an outside to an inside in a width direction of the strip of the metal plate, wherein a through hole is provided by surrounding the flanges of the T-nuts adjoining, and the pair of the bridges, wherein the through hole is in a shape of an ellipse, a track shape, or a rounded rectangular.
a cylindrical shank having openings at both ends, and an internal surface forming a female screw;
flanges provided at a periphery of one of the openings at a base side of the shank; and claws provided at the flange to be extended in a direction from the flange to a tip side of the shank, wherein the claws are cut and raised from an outside to an inside in a width direction of the strip of the metal plate, wherein a through hole is provided by surrounding the flanges of the T-nuts adjoining, and the pair of the bridges, wherein the through hole is in a shape of an ellipse, a track shape, or a rounded rectangular.
4. The chain of T-nuts according to claim 2, wherein a through hole is provided by surrounding the flanges of the T-nuts adjoining, and the pair of the bridges, wherein slits are provided at both ends of the width direction of the through hole.
5. The chain of T-nuts according to claim 1, wherein the strip of the metal plate is punched to form a shape including a circle or approximately ellipse, wherein a part of a periphery of the shape is cut and raised to form the claws.
6. The chain of T-nuts according to claim 1, wherein the shank has an enlarged portion at a base side thereof in which an outer diameter and an inner diameter of the shank is bigger than those at a tip side of the shank.
7. The chain of T-nuts according to claim 1, wherein the shank has a portion to be caulked at a tip side of the shank, wherein the portion to be caulked portion can be caulked with a fixation material.
8. The chain of T-nuts according to claim 1, wherein the shank has a deformed portion by concaving a part of an outer surface of the shank.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012113201A JP5063826B1 (en) | 2012-05-17 | 2012-05-17 | Chained T nut |
| JP2012-113201 | 2012-05-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2803399A1 true CA2803399A1 (en) | 2013-05-01 |
Family
ID=47189622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2803399 Abandoned CA2803399A1 (en) | 2012-05-17 | 2013-01-22 | A chain of t-nuts |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5063826B1 (en) |
| CN (1) | CN103423277A (en) |
| CA (1) | CA2803399A1 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10328776A (en) * | 1997-05-30 | 1998-12-15 | Natl House Ind Co Ltd | Production of connected nail |
| JP3310939B2 (en) * | 1997-12-26 | 2002-08-05 | 永山電子工業株式会社 | Metal fastening member and method of manufacturing the same |
| JP3946091B2 (en) * | 2002-06-19 | 2007-07-18 | 永山電子工業株式会社 | T nut group |
| JP4820927B1 (en) * | 2011-05-12 | 2011-11-24 | 永山電子工業株式会社 | T nut |
-
2012
- 2012-05-17 JP JP2012113201A patent/JP5063826B1/en active Active
-
2013
- 2013-01-22 CA CA 2803399 patent/CA2803399A1/en not_active Abandoned
- 2013-02-28 CN CN2013100635325A patent/CN103423277A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JP5063826B1 (en) | 2012-10-31 |
| JP2013238301A (en) | 2013-11-28 |
| CN103423277A (en) | 2013-12-04 |
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| Date | Code | Title | Description |
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| FZDE | Dead |
Effective date: 20141118 |