CN107076196A - Wood fastening part - Google Patents

Abstract

There is provided a kind of fastener, including a head end (106), with a head (110), one sophisticated (104), with a taper (108), one first main part (112), with the first screw thread (114), the first screw thread has an angle of rifling, and one second main part (116), with the second screw thread (118), the second screw thread has the angle of rifling for being different from the first screw thread.First main part adjacent to fastener tip, and along the length of fastener towards head end extend the first distance.Second main part extends adjacent to the first main part, and from the head of fastener, and extends second distance along the length of fastener towards head end.

Description

wood fasteners

related application

This application is a continuation-in-part of U.S. Application Serial No. 13/409,645, filed March 1, 2012, which is currently pending, and this application is a Part of U.S. Application Serial No. 13/036,465, filed February 28, 2011 Continuing the application, which has been cancelled, this application files the priority of US Provisional Application Serial No. 61/309,665 filed March 2, 2010, which has expired.

technical field

This technology relates to fasteners and methods of installing fasteners, particularly fasteners useful for securing metal panels to wooden building structures.

Background technique

In the construction industry, column structural metal building materials are mounted on wooden frame structures with various types of wooden fasteners. However, current wooden fastening thread designs have a tendency to unscrew over time, weakening the connection and the structural integrity of the building. In addition, known fasteners may have a tendency to break during installation due to high driving torque in certain high density materials, and to peel off in certain low density materials.

Description of drawings

The specific embodiments have been chosen for purposes of illustration and description and are shown in the accompanying drawings, which form a part of the specification.

Figure 1 is a side view of one example of a fastener of the present technology.

FIG. 1A is a detailed view of area A of FIG. 1 .

2 is a perspective view of a second example of a fastener of the present technology with a sealing washer assembled therewith.

3 is a side view of the fastener of FIG. 2 with a sealing washer assembled therewith.

4 is a side view of a third example of the fastener of the present technology.

5 is a side view of a fourth example of the fastener of the present technology.

FIG. 5A is a detailed view of area A of FIG. 5 .

6 is a flowchart of one example of a method of using the fasteners of the present technology.

detailed description

The fasteners of the present technology may be used in any suitable application, but are particularly useful in construction applications where metal building materials are secured to wooden frame structures. Some embodiments of the fasteners of the present technology may also be used in metal-to-metal "stitched" applications.

1-5A illustrate examples of fasteners of the present technology. The same reference numerals have been used for like aspects in each illustrated example. Fasteners of the present technology may be made from any suitable material including, for example, carbon steel. Additionally, fasteners of the present technology may have a coating to improve the weather resistance of the fastener. Fasteners of the present technology may be of any suitable length including, but not limited to, 1 inch, 1.5 inches, 2 inches, 2.5 inches or 3 inches.

As shown in FIGS. 1-5, the fastener 100 has a body 102 that includes a tip 104 and a head end 106. The fastener 100 has a tip 108 at the tip 104 of the body and a head at the head end 106 of the body. Section 110. The fastener 100 also has a first body portion 112 adjacent to the tip 104 and including first threads 114 and a second body portion 116 adjacent to the head end 106 and including second threads 118. The head of fastener 100 may be of any suitable type. Tip 104 of fastener 100 may include one or more partially formed threads 126 . Tip 108 of fastener 100 may include a sharp self-tapping point. In the example shown, the fastener 100 has a type 17 point that can allow for desired penetration in overlapping metal conditions. As shown in FIGS. 2 and 3 , a sealing washer 132 may be included in or assembled to the fastener 100 . Gasket 132 may be any suitable material, such as rubber, and may be placed on fastener 100 adjacent and proximate to head 106 .

The first body portion of the fastener 100 is adjacent the tip 104 of the fastener 100 and extends a first distance D ₁ along the length of the fastener 100 toward the head end 106 . The first body portion 112 includes a first thread 114 , which may, by way of illustration, be a right-hand thread. The first thread 114 may be a single-lead or multi-lead thread, such as a double-lead or triple-lead. The first threads 114 have a first diameter, which may be any suitable diameter, and any number of threads per inch of length along the body of the fastener. For example, the first thread 114 of the embodiment shown in FIG. 1 is a #10-14 twin-lead thread 140 having a #10 diameter, which is a major diameter of about 0.19 inches plus or minus normal ANSI tolerances, and about 14 inches per inch. threads. As another example, the first thread of the insert shown in FIG. 5 is a #10-15 buttressed three-lead thread 142 having a #10 diameter, which is a major diameter of about 0.19 inches plus or minus normal ANSI tolerances, And about 15 threads per inch.

In the embodiment shown in FIG. 5, the #10-15 triple lead thread 142 may be formed from three #10-5 threads intertwined with each other and may have a 0.066 inch offset between each. When using this configuration, the actual forward travel is about 0.2 inches per revolution during installation of the fastener.

As shown in the detailed illustration of FIG. 1A , the first threads 114 have a first pitch A, which is the linear distance between the top of one thread and the top of the next thread. The first thread 114 also has a helix angle α which is smaller than standard threads with a 60° helix angle. In some examples, the first thread 114 of the fastener 100 may have a helix angle α of 20° to about 50°. As shown in Fig. 5A, the helix angle α is equal to 45°. The helix angle α of the first thread 114 may have a geometry of 0° to 10°/20° to 40°. In this example, each thread has a first interior angle β on the tip side 120 of the thread, facing the tip 108 of the fastener 100, and a second interior angle γ on the head side 122 of the thread, facing the fastener 100 of the head end 110 . For example, the tip side 120 and the head side 122 of each thread slope toward each other from the base of the thread and meet at a point 124 at a height from the body 102 of the fastener 100 . When vertical reference line B is drawn from point 124 to the body of the fastener, tip side 120 of the thread is inclined from the vertical reference line at a first interior angle β, which may be from about 20° to about 40°. In such an example, the head side 122 of the threads is inclined from the vertical reference line at a second interior angle γ, which may be from about 0° to about 10°. In one example, the thread helix angle α may be about 30° with a first interior angle β of the tip side 120 of about 20° and a second interior angle γ of the head side 122 of about 10°. In the example shown in FIGS. 5 and 5A , the thread helix angle α may be approximately 45°, with a first interior angle β on the tip side 120 of approximately 40° and a second interior angle γ on the head side 122 of approximately 5°. In at least some examples, the geometry of the threads may improve the fastener's resistance to back-off over time after installation.

In some examples, one or more of the first fully formed first threads 114 on the first body portion 112 are the threads closest to the tip 104 of the fastener, which may include serrations 128 . In at least one example, at least one of the first three fully formed first threads 114 on the first body portion 112 is the thread closest to the tip 104 of the fastener, which may include serrations 128 . For example, one, two, or all three of the first fully formed first threads 114 may include serrations 128 . In the example shown in FIGS. 1 and 2 , the first two fully formed threads include serrations 128 . In the example shown in FIG. 2 , tooth profile 128 may be tooth 130 . Such teeth may be rectangular, as shown in Figure 2, or may have any other suitable shape, such as triangular. In at least some examples, serrations 128 may reduce the driving torque required to install fastener 100 and facilitate installation of fastener 100 through knots and hardwood. Also, often when fasteners pierce metal siding, metal burrs, sometimes called pigtails, may develop. The inclusion of serrations 128 may cause the burrs to be removed and then the serration threads contact the burrs when the fastener 100 is installed.

The second body portion 116 of the fastener 100 is adjacent to the first body portion 112 of the fastener 100 and extends a second distance D ₂ along the length of the fastener 100 toward the head end 106 . In a preferred example, the length of the second body part may be smaller than the length of the first body part. For example, referring to FIG. 1 , the second distance D ₂ of the second body portion 116 may be less than the first distance D ₁ of the first body portion. In some examples, such as when the overall length of the fastener 100 is about 3 inches or less, the length of the second body portion equal to the second distance D2 of the _second body portion can be less than or equal to about a quarter of an inch. (0.6 cm).

The second body portion 116 includes second threads 118 having a second pitch B that is different from the first pitch A of the first threads 114 . The second thread 118 of the second body portion may be left or right threaded. The second thread 118 may be a single-lead or multiple-lead thread. The second thread 118 may have any suitable diameter and number of threads per inch of length along the fastener body. The second body portion 116 of the fastener 100 may include any number of second threads 118 including, for example, about 1 thread to about 5 threads, or preferably about 2 threads to about 4 threads. The second thread 118 has a second diameter, which may be any suitable diameter, including, for example, having the same diameter as the first thread 114, or oversized, which means that the second thread 118 may have a diameter that is larger than the first thread 114. A first diameter of thread 114 .

As shown in FIGS. 1 and 2, the second thread 118 is a left-hand thread 134, and may be a #10-12 thread with a #10 diameter, which is a major diameter of approximately 0.19 inches plus or minus normal ANSI tolerances, approximately 12 threads.

As shown in FIG. 4 , the second thread 118 is a right-hand thread 136 , and the pitch B of the second thread 118 is smaller than the pitch A of the first thread 114 . In other examples, the pitch B of the second threads 118 may be greater than the pitch A of the first threads.

As shown in FIG. 5 , the second thread 118 is a right-hand thread 138 . The right thread 138 may be a #12-14 reverse buttressed single lead thread with a #12 diameter, which is about 0.212 inches plus or minus normal ANSI tolerance major diameter, about 14 threads per inch. In this example, the second thread 118 has a larger diameter than the first thread 114 because the right-hand thread 138 making up the second thread 118 has a #12 diameter while the three-lead thread 142 making up the first thread 114 has a #10 diameter .

In at least some examples of the fasteners of the present technology installed through metal siding, the second threads 118 may result in the removal of burrs that typically occur when the fastener is passed through the metal siding. In addition, the second thread 118 can invert the edge of the metal around the insertion hole of the fastener 100 , which can create a smooth surface and prevent the metal siding from cutting and damaging the rubber gasket 132 . Furthermore, while the first threads 114 tend to back off over time due to expansion and contraction of building materials and fasteners as they experience changing weather conditions, the second threads 118 can tend to apply force in the opposite direction, thereby Resistance backs off.

In at least one application, the fasteners of the present technology may be used to secure metal panels to wooden building structures. One method of installing the fastener 100 of the present technology may include the step of inserting the fastener into the metal panel and into the wood structural element. Sealing washer 132 may be assembled to fastener 100 prior to insertion of fastener 100 into the sheet metal and into the wooden structural element. As shown in FIG. 6 , when installing the fastener 100 of the present technology, the method 600 of installing the fastener 100 may include, at step 602 , disabling the fastener 100 as the tip 108 of the fastener passes through the metal panel. Creates burrs or pigtails of the metal attached to the sheet metal, which also typically occurs with traditional fasteners. In step 604, also often viewed with conventional fasteners, the step of inserting the fastener 100 may include the first threads 114 of the fastener such that the first threads of the first body portion 102 of the fastener 100 As 114 passes through the sheet metal, the area of the sheet metal immediately surrounding the fastener 100 disengages from the wooden structural element. In the method of installing conventional fasteners, producing metal burrs and detaching the area of the metal panel surrounding the fastener from the wooden structural element, each process may result in damage to the sealing gasket.

However, in the method of installing the fastener of the present technology, such damage to the gasket can be reduced or prevented. For example, method 600 of installing fastener 100 may further include, at step 606 , deburring fastener 100 as it passes through a metal panel. Removing the metal burrs may include contacting the metal burrs with the second threads 118 on the second body portion of the fastener, and separating the one or more second threads from the metal burrs as the second threads 118 pass through the metal plate. For example, in the embodiment shown in FIG. 5, as the second thread 118, which is a right-hand thread 138, passes through the metal plate, they can completely deburr the metal by reversing it to the underside of the metal plate. In some such examples, the first thread 114 may be a double or triple lead thread and the second thread 118 may be a single lead thread, which may allow the second thread 118 to be pulled through the metal more quickly and thus separate the burrs. Alternatively, where the fastener includes one or more first threads 114 having serrations 128, removing the metal burr may include contacting the metal burr with the serrations 128 on the one or more first threads 114, and when As the one or more first threads 114 having serrations 128 pass through the sheet metal, the one or more serrations 128 separate from the metal burrs.

Furthermore, in practice, the metal plate can stop pulling away from the wooden structural element at the junction of the first and second threads. Once the second thread 118 is in contact with the metal plate, the second thread 118 can push the metal plate towards the wooden structural element before the fastener is fully inserted, at which point the area of the metal plate will be in contact with the head 110 of the fastener 100, Or in contact with the sealing gasket 132 near or adjacent to the head 110 . Thus, step 608 of inserting the fastener 100 may include pushing the area of the metal panel to the wooden structural element, which has caused disengagement from the wooden structural element, and step 610 may include pushing the area of the metal panel to the wooden structural element, and step 610 may include pushing the area of the metal panel to the wooden structural element Head contact, or the area where the wooden structural element is in contact with the metal panel, prior to contact with the gasket near the head of the fastener. This lets the fastener installer know that the sheet metal has come into contact with the wooden structural element before the fastener is fully installed. In this case, the fastener installer can then apply the proper final tightening torque to the fastener to properly compress the ferrule and prevent excessive torqueing of the fastener and ferrule, which could damage the ferrule and cause leakage.

From the foregoing it will be appreciated that, while specific embodiments have been described for purposes of illustration, various modifications may be made without departing from the spirit or scope of the present disclosure. Accordingly, the foregoing detailed description is to be regarded as illustrative rather than restrictive, and it is to be understood that the appended claims including all equivalents thereof, particularly point out and expressly claim the subject matter which is claimed.

Claims (19)

CLAIMS 1. A method of installing fasteners to secure metal panels to wooden structural elements, comprising the steps of: Metal burrs on the tip of the fastener when the tip of the fastener passes through the metal panel; The area of the metal panel immediately surrounding the fastener is disengaged from the wooden structural element by means of the first thread on the first body portion of the fastener when the first thread passes through the metal panel , the first thread has a first diameter and a first pitch; Remove metal burrs when fasteners pass through metal panels; The area of the metal panel is pushed to the wooden structural element by means of the second thread on the second body part of the fastener when the second thread passes through the metal panel, the second thread has a second diameter, the second diameter greater than the first diameter of the first thread and having a second pitch different from the first pitch of the first thread; and The wooden structural element is brought into contact with the area of the metal panel before the area of the metal panel comes into contact with the head of the fastener, or with a sealing washer proximate to the head of the fastener. 2. The method according to claim 1, wherein the step of removing metal burrs comprises: contacting a metal burr with a second thread on the second body portion of the fastener; and The metal burr is separated from the second thread as the second thread passes through the metal panel. 3. The method of claim 1, wherein at least one of the first three fully formed first threads on the first body portion includes serrations, and the step of removing metal burrs comprises: contacting a metal burr with at least one fully formed first thread having serrations; and The metal burrs are separated when at least one fully formed first thread with serrations passes through the metal panel. 4. The method of claim 1, wherein the first thread is a triple-lead thread for providing approximately 0.2 inches of forward travel per revolution of the fastener. 5. The method of claim 1, wherein the first thread has a helix angle α less than about 60°, and the method further comprises a geometry of the first thread, wherein the first thread performs resistance Steps to regress over time. 6. The method of claim 5, wherein the first thread has a helix angle a of about 45°. 7. The method of claim 6, the helix angle of the first thread further comprising: a first internal angle β of about 40°; and a second internal angle γ of 5°. 8. The method of claim 1, wherein the second distance of the second body portion is less than the first distance of the first body portion. 9. The method of claim 1, wherein the second thread is a right-hand thread. 10. A method of installing fasteners to secure metal panels to wooden structural elements comprising the steps of: Metal burrs on the tip of the fastener when the tip of the fastener passes through the metal panel; The area of the metal panel immediately surrounding the fastener is disengaged from the wooden structural element by means of the first thread on the first body portion of the fastener when the first thread passes through the metal panel , the first thread is a right-hand thread having a first diameter and a first pitch with a helix angle α of about 20° to about 50°; Remove metal burrs when fasteners pass through metal panels; The area of the metal panel is pushed to the wooden structural element by means of the second thread on the second body part of the fastener when the second thread passes through the metal panel, the second thread has a second diameter, the second diameter greater than the first diameter of the first thread and having a second pitch different from the first pitch of the first thread; The wooden structural element is brought into contact with the area of the metal panel before the area of the metal panel comes into contact with the head of the fastener, or with a sealing washer proximate to the head of the fastener. 11. The method according to claim 11, wherein the step of removing metal burrs comprises: contacting a metal burr with a second thread on the second body portion of the fastener; and When the second thread passes through the metal panel, the metal burrs are separated. 12. The method of claim 11, wherein at least one of the first three fully formed first threads on the first body portion includes serrations, and the step of removing metal burrs comprises: contacting a metal burr with at least one fully formed first thread having serrations; and The metal burrs are separated when at least one fully formed first thread with serrations passes through the metal panel. 13. The method of claim 11, the helix angle of the first thread further comprising: a first interior angle β of about 40°; and The second internal angle γ is about 5°; And the method also includes a geometry of the first thread, wherein the first thread performs the step of resisting back-off over time. 14. A fastener comprising: a head, has a head a point, having a point; A first body portion adjacent to the tip of the fastener and extending a first distance along the length of the fastener toward the head end, the first body portion includes a first thread having a first diameter, a first pitch and a helix angle α less than about 60°; and A second body portion adjacent to the first body portion and extending a second distance along the length of the fastener toward the head end, the second body portion includes a second thread having a second diameter, a second pitch, and a second distance. The second pitch is different from the first pitch of the second pitch of the first thread. 15. The fastener of claim 15, wherein the helix angle a is about 45°. 16. The fastener of claim 15, wherein the first thread has a helix angle a of about 20° to about 50°. 17. The fastener of claim 17, wherein the helix angle of the first thread comprises: a first interior angle β of about 20° to about 40°; and A second interior angle γ of about 0° to about 10°. 18. The fastener of claim 15, wherein the second diameter of the second thread is greater than the first diameter of the first thread. 19. The fastener of claim 15, wherein said first thread is a triple lead thread for providing approximately 0.2 inches of forward travel per revolution of said fastener.