TWI281005B - Self-drilling anchor - Google Patents

Abstract

A self-drilling anchor for use in a friable material comprises a body having an axis, an axial bore adapted to receive a fastener, a proximal end, a drilling end, a proximal portion adjacent the proximal end having threading for engaging the friable material, and a drilling portion adjacent the drilling end, wherein the threading has a root with a root diameter and a crest with a crest diameter, and the anchor has a head at the proximal end having an outer diameter that is smaller than the crest diameter. The anchor head is configured for minimizing visible distortion of the friable material as the anchor is advanced into the friable material.

Description

1281005 IX. Description of the Invention: [Technical Field] The present invention relates to an anchor for fragile materials, and more particularly to a member for mounting on a drywall (dryWall) Self-drilling fixtures on. [Prior Art] Since the drywall is a fragile material, it may be difficult to mount the object onto it. At least three methods have been used in the past. For light objects, small plastic expansion fasteners have been used. These expansion fixtures generally require three installation steps: -, drilling a hole in the dry wall; second, inserting the fixing member (4) into the hole in the hole; and finally, screwing the screw with the screw (four) In the piece, 'the fixing piece is opened and the dry D is engaged. However, the expansion fasteners generally only support light loads. For heavy-duty applications, toggle bolts have been used (t〇ggie just. Although toggle bolts - straight is effective, they are usually expensive because = contain relative movements that must be made to each other (four) pieces, material, elbow The snails are notoriously difficult to install. The two-drill fixtures have also been used to install heavier loads. These self-drilling fixtures themselves are drilled into drywall to secure the body. The fixtures also include: Thread to provide strong pull-out force in drywall. Self-drilling fixed: = Included: TWBuildex company made and... Out: solid... in US, 5, 1 90, 425 and 5, 558, 479, all these patents Transferring 1281005 to the assignee of this application. 曰 When installed only in drywall, it has been proven that self-drilling fixtures are effective for supporting heavier loads. However, in most cases the drywall is installed on wood. On the support members or the struts, the user does not see the support members and the user does not know and cannot check the position of the support members. When the user of the general self-drilling fastener attempts to mount the fixing member to the support of the dry wall Piece position Cannot be drilled into the support and thus rotate in place, causing the high thread of the solid part to peel off the drywall, causing damage to the fixture and creating unsightly scratches on the wall. Even if the fixture can be drilled slightly into the support, the fixture It is known that the support member is tightly engaged, and the fixing member is damaged due to the torsion force. The dry wall fixing member generally has a head or flange which is larger than the outer diameter of the dry wall thread, and prevents the fixing member from being drilled when the fixing member is mounted. Over dry wall. In any case, 'the larger fixed head is known to be able to displace the dry wall a small part when the fixed part is drilled, causing the dry wall surface around the periphery of the fixed part to protrude. "blistering of drywall". The large outer diameter of a drywall thread can also cause displacement of the drywall, which causes the drywall to foam. Foaming can cause unsightly and unpleasant swelling on the surface of the drywall. In order to make the mounted object flat with the dry wall surface, this may make it difficult to install certain objects to the drywall surface. Therefore, a self-drilling fixing member for the dry wall is required, which can reduce the blistering of the dry wall without reducing Low support strength. 1281005 The present invention provides a self-drilling fixture for use in a fragile material, comprising a body having an axial bore that can accommodate a fastener. a proximai end; a drill end (drilHng end), a proximal portion adjacent to the proximal end (pr〇ximai ρ〇ΓΗ〇η), the proximal end having a meshing material for engaging the fragile material Threading; a bore portion adjacent to the drilled end of the side (dri 11 ing p〇rf i〇n); and a head at the proximal end, the proximal end having a thread outside the thread The top diameter (〇uter crest diameter) is also small outside diameter. The smaller head minimizes visually perceptible distortion on the frangible material as the fastener advances to the fragile material. In one embodiment, the thread includes a generally flat face on its crest that helps minimize visually perceptible fragile material deformation when the fastener is drilled. In another embodiment, a self-drilling fixture for mounting in a frangible material on a substrate, the self-drilling fixture having a body having an axis; - accommodating a fastener a proximal end; a proximal end portion of the proximal iliac having a thread, the proximal end having a thread for engaging the fragile material; and a self-drilling portion having a heart that fits the base = screw, The length of the drywall is longer than the thickness of the drywall, wherein the thread of the proximal portion has a thread root diameter and a thread top diameter, the thread of the self-drilling portion has a thread root diameter and a substantially smaller a threaded top diameter of the threaded top diameter of the proximal portion; and a head positioned at the proximal end, the proximal end having an outer diameter that is smaller than the diameter of the threaded top. The outer diameter of the second part of the implementation is about! Up to about L5 times the size of this diameter. In order to make these and other features and advantages more obvious, the following is a description of the same as that of the 1281005. [Embodiment] Mai Khao 1-4, 14 figures show a novel self-drilling fixture. The general features of the fastener 10 will be described in the past, and then several exemplary embodiments will be described. These examples include the fracture tip embodiment shown in the second application. ^ 干 7L· On the dry wall raft, the novel fastener 1 has an elongated body 12 with an axis 6 and an axis adapted to accommodate the elongated mounting fastener 4 (m (mnting (10)) (see Figure 7) The hole 8 has a flared end 14 of the torsion transmitting surface 15, a proximal portion 18 adjacent to the flared end u, a middle portion 2, a portion 22, and a portion substantially located at 垆0*山, The boring tip 16 is at the opposite end of the drilled end 16. The proximal end portion 18 has a threaded outer portion, such as a dry _ (§ ΗΡΡ threading) 19' thread externally having a threaded root 26, a, a threaded top diameter The thread crest 27 of the DC and the - screw = part have a threaded outer part, such as the member holding the thread 2ι,: = the outer threaded root 28, the item with the threaded top diameter mc and the thread height MH, the thread top diameter Mc The general document item 29 and the diameter DC, and the thread height MH is generally ^; 4 drywall inflammation holding the thread top DH, the distal end portion 22 has a threaded outer portion, and the dry wall clamping thread height pattern has a outward facing drill The hole tip 16 is gradually changed into a drilling thread 23 which is a thread crest 31 of a thread top diameter TC, which is wide: Wengen 3〇 and with drywall clamping The top diameter Dc, and a ',' the top diameter TC is substantially smaller than the clamping thread height DH. The door angle TH is substantially smaller than the dry wall 1281〇05. In order to mount an object 3 on the dry biliary i, the fixing member 1〇 is drilled into the drywall 1, as shown in Fig. 7. After the fixing member is mounted, the ampoule fastener 4 is inserted through the object 3 into the hole 8 of the fixing member 10. The fixing member 1 is smaller than < The mounting fastener 4 has stronger engagement and higher pulling strength. When the fixing member is only installed in the drywall 1 'the fixing member 1G is used in a similar manner to the conventional self-iron fixing member. However, the fixing member 10 includes Allowing the fasteners to penetrate and resound in some of the features of a support member 2 such as a wooden post, and including the ability to withstand the additional strength of the large driving force in the support member and the support #2 The fragile material can be one of several fragile materials used in construction, and the bean 3 is attached to the fragile material to increase the load that the fragile material can withstand: the fragile material - An example is a dry amine based on gypsum. For example, the trademark sold by Umted States Gypsum is sheetr〇ck. Taste dry stone wall. The thickness T of the drywall 1 is generally 1/2 inch or 5/8 inch, but can be used to dry walls of other thicknesses, b 3/8 inches. One of the components of another fragile material that is dry. Thus, the support member 2, such as a wooden support member, such as the upper branch: or the like, or may be a metal support member, such as: h, the support member 2 is substantially more resistant to the pull-out position than the drywall 1 because it is Γ = Can rupture. Although the fastener 10 can be used on a support member 2 that is mounted on another:, U back, or other fragile material, ^ ^ ^ ^ ^ ^. The π-U will use, for example, wood 'to Figure 7' to mount the fastener 4, preferably a threaded fastener, such as a 1281005 screw, which has an elongated screw 34 having a head 35 at one end and the other end There are tips 36. The screw 34 of the mounting fastener 4 includes a thread 5 that engages with the shaft hole 8 of the fixing member J 。. The thread 5 of the mounting fastener 4 can be in the form of a standard thread, such as a unified standard coarse thread series (Unified c〇arse; a simple or uniform standard fine thread series (Unified Fine·, UNF), the thread 5 can also be dedicated Thread form. The mounting fastener 4 can be a standard material, #7 or #8 UNC screw, where the head 35 has a phiUips groove (cross groove) and the total length of the elongated body FL is between about 吋/2 inches. Between about 2 inches or longer, preferably 1 · 25 inches. The thread density of the mounting fastener 4 is between 8 and 18 threads and lines per inch (four), preferably 15 per inch. The mounting fasteners 4 can be of different lengths to accommodate different thicknesses AT of the article 3. Preferably, the fasteners 1 are designed such that if the article 3 is relatively thin, the long mounting fasteners 4 can be woven with the timepieces Use, as shown in Figure 7. If (4) is thicker, a longer mounting fastener 4 is required to achieve the same as the fixing member: the mouth fixing member 1 〇 allows the mounting fastener 4 to be longer than the fixing member i, Because the shape of the solid member 1G (four) allows the tip 36 of the mounting fastener to extend beyond the original position of the drill tip 6, this will be under Note that since the fixing member 1 allows the tip end 36 of the garment fastening member 4 to extend beyond the drill tip end 6 , the fixing member 10 can be shorter than the mounting fastener 4. It is preferable to select a shorter fixing member 1 Because the depth of the weir in the support member 2 is limited, 1 and the associated torque is reduced, and because of its low manufacturing cost, the operation is relatively easy, and the installation and the drilling time are short. The household is loaded with a plurality of fixing members 较短 in a short period of time with the least effort of the user. 1281005 Fixing member refers to Figures 2, 3 and 7, and the fixing member 1 includes a substantially hollow elongated body 1 2 The elongated body 12 has an axis 6, a thin wall 38 surrounding the shaft hole 8, and the shaft hole 8 is adapted to receive the mounting fastener 4, wherein the shaft hole 8 has a substantially cylindrical elongated portion and a set suitable for receiving a spline 44 of the threaded elongated fastener 4. A flange 4 is located on the flared end 14 of the elongated body 12, wherein the flange 40 includes a torque transmitting surface, such as a Phillips recess. Surface 15 in the groove 42, the Phillips type groove can be a ten-type drive (Phi 11 ipS Square Drive) To minimize the cam shape. The fastener further includes an axially extending proximal end portion 18 adjacent the flared end turns 4, one extending axially between the proximal end portion 18 and the distal end portion 22 The intermediate portion 2, an axially extending distal portion 22, and a bore end 16 generally at the opposite end of the flared end 14, wherein the intermediate knife 20 tapers toward the distal end portion 22 and distally The portion 22 tapers toward the drill tip 16. The retaining member 10 is preferably a hand-operated screwdriver. The screwdriver can be a Phillips screwdriver or the like, or can be drilled with a power screwdriver. In the embodiment of Fig. 3, the elongated proximal end portion of the fixing member 土 土 土 土 土 土 土 土 土 土 土 土 土 土 土 土 土 土 土 土 土 土 土 土 土 土 土 土 土 土 土 土 土 土 土 土 土 土 土 土 土The thread and the first-middle second outer screw & on the distal end portion 22 are between the outer thread portion 23 and the outer thread portion 23. The first Sangha Fantasy one external thread 23, the tired pattern 1 9, 21, 2 3 and the second worm outer threaded thread dents die: r system 23, both have a ~, a close drill The first 上 on the threaded guide 18 of the hole rupture end. Proximal part

The external thread 19 has a threaded crest diameter DC, which is used to clamp the drywall 1 and a high thread, and a Dua DH. The 孑 孑 仫 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , The first external thread π on the distal end portion u has a thread top diameter K which is substantially smaller than the thread top diameter and a screw thread which is substantially smaller than the south thread dimension DH by m _ ..., degrees ΤΗ. On the first thread 19, 21, 23, there is a transition zone 62 between the helix thread and the thread height ΜΗ. The second external thread 23" has a general μ,

The thread height ΤΗ is substantially smaller than the thread top diameter TC of the high screw 2 = the top 4 "c, and the same degree DH. Preferably, the fixing member ig has a means for attaching the fixing member 16 to the position of the distal end of the hole of the fixing member 1G. Fixed... has a thin wall 38 that allows the mounting tab 4 to pierce the drill tip 16 of the mounting member 10. The thin-walled tip 36 extends through the fixed diameter, thereby allowing the smaller threaded root of the desired mounting member 1G to be directly attached to the fixture 1. Accommodate the outer diameter phase: two. The outer thin wall 38 allows for a relatively small thread root. For example, == part 4, 'however the fixing piece is English, and - the set of racks "sufficiently large thickness is about 〇·. 2 heart can accommodate the outer diameter about.." British time: right as described below, the fixing piece or The outer diameter is about 0 16 inches, the threaded mounting fastener, the thread of the fastener 5. The tap 10 is made of less material, so fixed? 3: Allow the fixed parts. In one embodiment, the "cost of the fixture is lower...·5 inches, preferably the thickness = thickness between the two, about 0.025 inches.. 〇 15 inches吋至约〇.〇3 In the embodiment of Fig. 3, the rack "packages" is used to fit the mounting fastener 4. Mounting buckle: 1〇: hole 8 series, 5, 5 will be engaged with the thread 12 1281005 (mating thread) 45 into the rack 44, so that the mounting fastener 4 is threadedly engaged with the rack 44, thus engaging the fixing member 10 . The rack 44 also provides structural support for the fastener 10 so that when the elongated body 12 of the fastener 1 is drilled through the drywall 1 and the support 2, it can withstand greater torque. The effective inner diameter of the hole 8 with the rack 44 should be smaller than the outer diameter of the mounting fastener 4, or the top diameter of the thread, but should not be as small as the diameter of the thread root of the fastener 4, so that the rack 44 can be fitted with a buckle The piece 4 taps the thread to form a mating ridge 45. Preferably, the height of the rack 44 from the inner surface of the wall 38 is selected so that the effective inner diameter of the bore 8 is so small that the thread having the outer diameter of about 136 inches has a threaded mounting fastener that can tap into the rack 44, and The inner diameter of the wall 38 is such that the outer diameter of the 164.164 inch (four) #8 threaded fastener 4 can only be tapped into the gingival 44 but not the wall 38. In a preferred embodiment, the inner diameter of the bore 8 at the wall 38 is between about 17 inches and about 2 inches of the leaf: a:, preferably between about 18.8 inches and about 〇. 2 miles, about 019 miles better. The height of the rack 44 is between about 15 inches and about 45 inches, preferably between about 25 inches and about 35 inches, preferably about 0. 03 inches. Hole 8 is about 0.11 inch. The path is between - 〃, ,, preferably between about 0.12 inches and about 145 吋 between the central and middle, 0. 13 inches is better. · Eight ~ π / |, T clothing, suitable material in the positive: under enough to withstand a fixed 1 〇 drill into the dry support 2 "but with sufficient ductility, can be threaded mounting fasteners 4, Thread. The material of the fixing member 10 is compared with the piece... The clothing fastener "4 is broken to facilitate the mounting of the fastener 4*; the second: the fastening member 4 is pierced or the drilled tip 16 is drilled. Furthermore, the second 乂 超过 超过 超过 超过 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 The fixing member 10 is made of a metal or a metal alloy in the shape of a fixing member, such as an alloy, an aluminum-based alloy, a magnesium-based alloy, a steel-yellow steel alloy, and a zinc-based alloy. In one embodiment, it is made of an alloy such as Zamac 1. The fixture 10 can also be made of plastic or other polymeric materials, such as plastics, such as Deiron, nylon, and nylon with fillers, such as glass filled.

However, the fixing member 10 should be made to have sufficient strength to withstand the torsion of the jaw 10 into the dry wall 1 and the support member 2. The distal end portion is returned to the fourth, when the user manually drills into the fixture ι〇 and the distal end and in the second figure does not have a 'one light per #μ丄Λ pregnancy 乂仏m example, drill The hole tip 16 is substantially conical and coaxial with the elongated body 12, #揾雄π土, 平田便孔16 6 reaches the elongated body portion 22 so that the fixing member U) can drill through the dry wall i and the branch 2, so No additional pre-drilling steps are required. Distal portion 22 includes a drill tip i6j

The front surface including the sharp tip 46 and the support member 2 includes a point 46 as in Fig. 6 with the drywall 1 and the support axis 6. Preferably, the drill tip 6 is guided and quickly engaged with the surface 48 of the drywall 1. The drill tip 16 can also be in the flat portion 52 shown in its lower portion to aid in the initial engagement of the fastener member 2. The distal end portion 2 2 includes a threaded outer portion of the boring screw 9 q ^ 逖 % rib 23 which is disposed on the distal end portion 22 for fitting the dry wall i with the support member 23 includes the thread root 3G and the threaded tooth 31, the thread top diameter Tc of the thread crest 31 14 ΐ28Ί〇〇5 is substantially small ΤΗ substantially smaller than the dry wall clamp and the thread top diameter DC, and the thread height is also small enough. This allows the general user to use V; degrees = the mounting torque in the drilling thread height τ Η : 2 so that it can be fixed: as best seen in Figure 3, the thread 2 〇 is drilled into the support 2 . The curvature of the main body between the base and the root 30 may also be included on the base of the thread 23. , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Root section 3° from the middle section 2〇 to 16 cross section 穑Γ The drilled thread root 30 is close to the tip of the drill. Drilling snail = two,: part remains unchanged and two tired: coffee along the length of the distal end portion 22 is generally the tip end of the heart, :: screw: piece clamping thread 9 μ μ 'for example, greater than the support of the big, brother Thread twist MH, because the thread top diameter TC will not pass U under the 'small (four) grain roots ^ larger thread height. And the thread 2 3 and the intermediate portion thread 21 merge with the dry wall teeth through the dry wall. If the fixing member U is drilled into the position, after the dry wall 1, the drilling tip 16 strikes the support member 2, it: Hard 'for example, a wooden support column, then the fixing member 10 is blocked (but cannot enter the support member 2 in the axial direction, and is referred to herein as being subjected to the deformation of the fixing member 1). Drying "1" drills a hole of a predetermined size while drilling the tip into the support 2. The last drilling tip 16 is drilled into the support 2 by 1/8 inch and about 1/4 inch. The depth, which allows the distal end knife to...the 23° toothed support 2 and begin to pull the fastener 10 through the support 2 15 1281005 and make the dry wall clamping thread i9 able to fit the dry wall. The middle part of the screw drill is in the middle of the dry wall i and the dry ... 1 Ω "1 hole of the hole, special" between the clamping force is heavy special 疋 if the fixed piece 10 money into the dry wall has been It is found that for 疋kk. I am in the dry fat path, the 1/2 inch drywall thread, the distal end of the drill; the diameter of the hole is about 1/4 inch is ideal. Therefore, the result is: 22: designed to drill a hole in the drywall, so that the actual tensile strength of the fixed member 10 in the drywall 1 is usually the largest. The distal portion 22 can include at least one wing (w!ng) 54 that extends radially outwardly from the distal portion, the rake 22 to enlarge: back to the hole to form a hole having a predetermined diameter Selecting the diameter of the hole maximizes the pull strength in 1 'especially especially when the fixing member ig is drilled only into the wall and there is no support 2 behind the mounting position. Preferably, the two 54 protrude from the axis 6. The distance is approximately equal to the proximal end portion of the flange, inch, and the root half of the thread; wherein the root radius of the thread is the root diameter of the thread (10). The wings 54 are designed to shatter when they strike the support 2, causing the wings 54 does not enlarge the hole of the support member 2, but only enlarges the hole of the drywall i. In the embodiment shown in Fig. 2, the distal end portion 22 includes a pair of wings 54 which are along the direction of the feed end portion 2 2 extends. The wings 5 4 are equally spaced around the circumference of the distal portion 22, so each pair of wings 54 are separated by about 18 degrees and the wings 54 are radially outward. The lateral width (four) of the wing 54 is approximately equal to the root diameter DR of the proximal end portion 18 near the flange 40. Preferably, the enlarged opening of the wing 54 is approximately equal to the thread root diameter DR, such that the dry wall Only the required hole is enlarged in 1 so as to leave a maximum amount of 16 1281005 drywall 1 for meshing with the drywall clamping thread 19. Note that when the drill tip i 6 hits the support 1 There is a short blocked cow's solid thread that begins to peel off part of the drywall 1. For this purpose, the support 2 and the distal part, 2 are caught so that the fixture 1 G is not in front of the driller. ''A piece 2, so as to avoid creating on the surface 48 of the drywall 1; in the mark: the peeling dry wall extends as close as possible to the axial portion of the drill collar 16;:) more snail: 23 extension 23 can be faster Coinciding with the support member 2, the threaded thread 23 extends substantially to the end of the drilled hole. The axial spacing of the second bore 46 is between about G G and g g6 ^ = point 23 23 female Between the 兴μ士士才, where the borehole is tired, and, in general, extends straight to the drill tip 16. Ideally, the θm hole screw 2 3 — extends straight to the borehole, and the mountain is ... ... 妓. Stretched into the drilled big cake 16 'that is between the tip point 46 and the screw:, = it: no gap, anyway, has been found, for the hole: the:: axis:, which makes the thread and support ... 2 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。. Rather, rrvG should have sufficient structural strength to withstand high torsion: smashing ''In particular, the drill tip 16 does not rupture, the fixture is broken? The slab is enlarged by the above-mentioned stern wall 38. Fixing member i. Drilling support 2 The thin wall 38 does not provide a high torsion force applied by the (4) stator 1G. For this reason, the fixing member 10, particularly the drilling tip 16, includes some reinforcing members. The effect of the 17 1281005, which is structurally reinforced by the drill tip. This structural reinforcement is important because of the large torsion associated with the fastener 丨〇 into the support 2, especially since the fixture wall 38 is thin' The crucible itself does not have a large structural support force. The outer double helix thread 23, with continued reference to Figures 1 and 2, the outer thread 23 of the distal end portion 22 includes two generally helical threads 23, 23" arranged in a double helix. The double helix of the threads 23, 23" provides additional support around the distal portion 22 to help prevent cracking of the distal portion 22 due to the torsion of the fastener 1 into the support 2. Double helical threads 23, 23, also provides a more secure engagement into the support 2 and the drill tip 16 to the support member 2. The other 23" extends to an axial position near the drill tip 16 for the fixture 1 You can do it quickly. The teeth merge into the support 2 . Most preferably, each of the threads 23, 23" of the double helix has substantially the same pitch P such that the threads 23', 23" do not coincide with each other. Most preferably, the axial distance between the second thread 23" and the first screw 23 is about half of the pitch of the threads 23, 23, and is approximately 〇 for a pitch p of about 0.2 inches. 1 inch, such that there are threads 23, 23" on either side of each axial position along the distal end portion 22, providing structural support. Most preferably, the heights TH of the double helix threads "," are substantially equal. The first thread 23 of the double helix may continue as the thread 21 on the intermediate portion 2〇, while the second thread 23" is only present at the distal end Part 22 on. ,

The degree of clamping. The thread 23" extends to the intermediate portion 2'''''''''''''''''''''''''''''''''''''''''''' , it is desirable to allow the mounting of the fastener tip 36 through the drill tip 16 of the fastener 1 so that the user can use different degrees of mounting the fastener 4. What is the benefit, unless the ampoule fastener 4 begins to drill... When the fork member 2 is forked, the fixing #10 can properly clamp the support member 2, otherwise the thread 5 of the mounting fastener member can be removed from the mounting member 1 to cause a jacking, which can cause the fixing member 1 to clamp the thread. 19 leaving a scratch on the dry wall. When the = part = can make the dry wall 2, the thread 2 is clamped by the support member; the member 4 is drilled into the support 2, the Ζ 1 and the drilled thread 23 The reliability between the fixing member 10 and the supporting member 2 prevents the lifting. For example, the Wu Rong loading member 4 does not pierce or break the fixing member 丨U疋1 thousand iu, the middle portion 2ϋ the clamping strength will not be So important. I also recognize 1"Aberdeen ^ Α ^ How it sounds, because of the engagement with the support 2, the main force of the fixing member 1 〇 clamping force The member 10 properly engages the support member 2. ', w, however, it is desirable to fix back to the brothers 2 and 3 'the support member holding thread 21 is disposed on the intermediate portion 2. upper' and includes the thread root 28 and the thread top diameter ratio Drywall ^ The top diameter DC is substantially smaller than the thread crest 29 ^, in the embodiment, the middle portion 20 of the wheel: the solid thread root 28 is generally frustoconical, so the thread grain, 隹The shape of the roots 28 is slightly tapered toward the distal end portion 22 to minimize the need for the installation of the fastener 10, such as the swearing, and the squatting, especially in the case, because it ☆ i 』 疋 木 木 木 木 木 木 木 木 MR MR MR MR MR MR MR MR MR MR MR MR MR MR MR MR MR MR MR MR MR MR MR MR MR MR MR MR MR MR MR MR MR MR MR MR MR MR MR The angle of the table fire holding screw and the angle between about 4 degrees is preferably 2.25 19 1281005 degrees, which is gradually tapered. The best thread top diameter of the middle part 20 is selected to make the middle wall clamp The clamping between the threaded thread 19 and the drywall 1 is strongest, especially when the fixing member 1 is only worn on a dry wall. For example, There is a fixing member 1 〇 with a dry wall clamping thread top diameter DC of about 1 /2 inches, and it is desirable that the maximum bearing clamping thread top diameter MC is about 1/4 inch or less. In contrast, as described below, the thread height MH of the support gripping thread 21 is substantially smaller than the thread height DH of the drywall grip thread 19. The thread top diameter MC of the intermediate portion 20 is also larger than the screw of the proximal end portion 丨8. The secondary top k DC is generally small, so the mounting torque required to be mounted in the support member 2 such as a wooden column is not excessive. As described above, it is preferable that the support member grips the thread top diameter MC and the thread height MH of the thread 21 so that they are small enough to be drilled into the support member 2 and the fixing member 1 is blocked, leaving no scratches to the dry wall or The drywall 1 is torn so that when the support gripping thread 21 does not engage the drywall 1 during the obstruction process, the drywall 1 is lifted off the support member 2. Although the larger thread height of the middle portion 2〇 and the distal portion 22 of the J causes a greater pulling strength in the support member 2, it also greatly increases the penetration of the solid member 10 into the wood or the like. The torque required by the support material is such that it is difficult for the user to install the fixture 1G, especially when the driver is screwed. Therefore, the thread height 〇, TH should be chosen such that the intermediate portion 20 has an acceptable torque when it is drilled into the support 2. In the embodiment shown in Fig. 1, the thread 2 of the intermediate portion 2〇 is substantially a helical thread 21, the spiral thread 21 is a continuation of the drilling thread 23, and extends to the drywall clamping thread (drywall engaging The external thread 21 of the lower 20 ^ 8100 8 intermediate portion 20 may also be a double helix similar to the double helix shown in the distal blade 22 to provide an additional gentleman 4 on the intermediate portion 2Q ... The intermediate thread 21 may also have a radius of curvature between the base roots 28 of the threads 21 to prevent stresses in the base of the threads 21. The total length of the intermediate portion 20 and the distal portion 22 is better. The ground system is larger than /13⁄4 1 AA m ^ ^ When the near member 10 starts to drill into the support member 2, and 9 does not fish and the file 18 (described below) has a thread with a larger thread crest = dry 1 Cohesion, the twist will tend to scratch the drywall 1 and leave a large vane on the drywall i = face. The length ML should also be long enough to make :: wall clamp thread 19 start to fit dry Before i, the distal portion 22: is such as I: wall, I, drilling, especially when the fixing member 1 is only drilled into the dry wall 1 The situation, because the material that is drilled into the wall tends to be drilled along the axis of the front wall, the material is generally slow. For example, using the mouth of the temple to stretch 1 g along the axis to drill the fixture into the dry,] ~ ~ amp 1G Drill through the dry wall 1 than the fixed piece and dry the wall i = L.: Fruit is not in the dry wall clamping thread 1 9 start to break the dry wall 1 and not =: t: J then dry wall clamping thread 19 easy to 2 And the distal part two: two = drilling. In addition, it is important to balance the middle part of the knife "the length ML and the fixed strain] ni... the torque required to drill into the support 2 is important. Reference is made to the ribs 58 of the structural support of Figures 2 and 2, the ribs 58 曰 '曰 1 portion 20 including the thread roots 28 of the intermediate portions 20: / extending along the axis and from which can also be placed The proximal part is::, the government protrudes out of the 'point. When the rib 58 is screwed into the support 2, the solid:= thousand 1 〇k for stronger structural support. 21 1281005 q The double-helix fork The threaded threads 23, 23" and the axial ribs 58 surround the distal end portion 22 and the intermediate portion 20 to form a cage or mesh support to help prevent the fasteners from being solidified Pieces 1 〇 〇 〇 支承 支承 支承 支承 支承 支承 支承 支承 支承 支承 支承 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 The strength of the mesh support structure. The proximal portion of the proximal portion 10 to the second portion of the first end portion 18 includes a threaded outer portion. When the fixing member 10 is mounted, the threaded outer portion is engaged with the 盥/, 祀1, In order to support the load of the object 3, especially if the fixing member i only drills the wall. The dry wall clamping thread ig taps the matching thread 6〇 in the ^3 back 1 (the spray between the matlng . The threaded outer portion includes a proximal end portion 19, and the thread 19 has a threaded root 26 having a threaded top diameter Dc. Dry wall snail... and thread root; w slap nine thread 19 is high thread, i is the distance between two = 7 and thread root 26, or thread height Μ 7 pieces of thread 21 and drilling thread 23 is A & 丄 墙 wall clamping thread 1 q瞽ΗΛ county + π Μ 疋 big. The southern dry sputum, 19%, helps maximize the surface area of the contact dry, thus increasing the strength of the pull. The dry wall has a 19 degree DU thread than the support member, and the thread of the thread 19 is high, and the & a & a & is generally large, which can be provided in Dry wall (4) l ΜΗ, clamping thread teeth greater pulling strength. The dry wall remains unchanged. In one embodiment, the length base of the threaded teeth <the diameter of the thread DC is about 22 1281005. The diameter of the horse thread root 26 is returned to the fifth figure, preferably about 3/4 of the drywall clamping thread 19 To the rear of the drywall 1 so that the drywall grip threads engage the paper 51 on the rear surface of the drywall 1. Since it has been found that the engagement with the paper 51 constitutes an important portion of the clamping between the fixing member ι and the dry member 11, when only the fixing member 1 is drilled into the dry =, the paper 51 on the rear surface 5 of the dry wall is engaged. Especially important. Since the fixing member 10 is drilled into the support member 2, the high drywall clamping thread Η requires a large torque, so it is not intended to drill the drywall clamping thread 丨9 into the support member 2. Returning to Figures 2 and 3, the threaded root 26 of the proximal portion 18 can be tapered toward the intermediate portion 20 such that the threaded root 26 is generally frustoconical: thus the threaded root 26 at the top of the proximal portion 18. The diameter of the proximal end portion 18 is larger than the diameter of the bottom end of the proximal knife 18, and in the embodiment shown in Figure 2, the tapered portion of the proximal portion 18. The rooted roots 28 of the Wengen 26 and the intermediate portion 20 are generally far away, and are tapered at approximately equal angles such that the thread roots 26, 28 I α, {« are substantially along the same truncation Cone

Urust〇cone), thus giving the ran stencil 1 in the shape of a ballistic or bul let. In the embodiment shown in Fig. 1, 1Q ^ a ^ ^ ^ T, the external thread of the proximal end portion 18 is a thread 19, which is a support member that grips the 妗1 Q-dip total material -n,,,, Another 21 continuation, just the dry wall clamping thread 19 threaded top diameter DC and 蟫 rape ^

Tf ^ ^ ^ ,..., and the degree of latitude to the middle of the thread respectively, the top position MD and the thread twist μη 髀L + in one roll l A 丨 φ 'piece large' refer to the second and third figures. In a κ embodiment, the proximal portion is s s ^ 20 points twice the thread diameter of the rainbow. The threaded top diameter DC of 8 is about the middle portion. Preferably, there is 23 1281005 between the intermediate portion and the proximal portion 18.

The crossing area 62' has a threaded top diameter and a thread height from the force: the wall clamps the thread 19. In the example, the following: = pattern. It is better to dry the wall to hold the screw... roughly J 2: two. The drywall clamping thread 19 can also be a double-sided 5-female of two threads, wherein the thread of the double helix can be a thread of a screw, a secondary surface that is more than a dry wall clamping thread 19, and a thread. The second thread increases the fixture i. Strength of. The crucible may also include a base portion between the thread 19 and a thread root radius of curvature to minimize stress concentration at the base of the drywall thread 19. The curved leather + door::= and 4 4, the upper end of the drywall clamping thread 19 is spaced apart from the flange 40: the flange 4. And drywall holding job 19 (neck) 64. The neck 64 allows the flange 4's μ main ^^^48 or on its surface 41 to be located on the drywall surface 4« last under (d), as shown in Figure 4. Before 40, the drywall clamping thread 达 凸, the thread 60 formed in the 彖 1 creates a discontinuity at/where the adjacent wall is compressed in the drywall. Furthermore, the neck is solid: 1 gap. This gap allows the flange 4° and the paper 49 of the drywall surface 48 to ensure that the drywall clamping thread 19 engages the paper 49 and thus the same, and the drywall retaining thread 19 will not, but will not Paper 49 is distorted, from the undesired outer degree of the face 48 Wang; I back to the British .... The length NL of the two members 64 is about U3 Xing:, (1)·1 between the central pairs is better than about 0.07 Yingxin as shown in Figure 4, including DL, preferably slightly larger than the dry (i) The length of the portion 18 =::: the surface 50 has a portion to the upper portion of the proximal end portion 18 of the support member 2 which is drilled into the support member 2, and it is important to carefully select k to balance Drywall clamping thread 19 Engagement 24 1281005 The length of the paper 51 on the rear surface 50 of the drywall 1 is the required torque in the dry support 2. In addition, Xi ^, Wen 19 drilled into the same thickness of the dry card 1, the secret I, the piece 1 〇 can be used for indefinite length; ^ m It is important to remember that the proximal part of the 18 - 5 heart can be t Xu thread 19 is intimate with a thickness of the back surface paper in the dry wall. The ugly 'not able to engage the back surface paper in the thick dry wall 5 or ... the proximal part may be too long, making for a thin dry wall Must be drilled and twisted 1. The inflammatory thread 19 is too long, thus causing a greater need to secure the threading moment p of the thread 19 so that the dry gripping thread μ 2 25 " ^ has a full circle and is preferably Between about 1.75 and about ^ circle 'about 2 turns of drywall clamping thread i 9 is better embedded in drywall work. For a dry 1/2 of thickness 1/2 inch or 5/8 inch, the pitch ρ of the == tired and the second 19 is between about 1/8 inch and about 〇. It is about G. 2 inches. Preferably, the drywall retains the thread of the thread 19: a thread that is specific to the support member holding thread 21 and the thread 23 of the bore. In the Bellows (not shown), the drywall thread 19 is closer to the transition zone than the other thread 19 near the flared end 14. When there is a more rigid thread spray drywall j, it will quickly fix the wall to any lifting that can occur. The flared end is turned back to Figure 14 where the flange 4G is located on the flared end 14 of the solid S member 10, and the diameter of the threaded root 26 is increased to allow the crucible to be clamped. Paper 49 on the front surface 48 of the wall. In one embodiment, the diameter FD of the flange 25 1281005 40 is between about 45 inches and about 6 inches, preferably about 0.55 inches. The flange 4〇 also includes a torque transmitting surface, so that the user can rotate the wire to rotate the piece 1G. Referring to Figure 8, the flange ^ can include a recess 42 for receiving a screwdriver 43, wherein the recess 42 is configured for a particular type of screwdriver. Among the grooves 42, there are 9 grooves for receiving the Phillips screwdriver. The effective diameter of the recess 42 is larger than the inner diameter of the bore 8 to accommodate the screwdriver 43, such that the retainer wall 38 is thinner at the recess 42 than at other axial locations along the mount ι. Since the total torsion of the fixing member 1〇 is concentrated on the groove 42, the flared end 14 may be broken before the fixing member 1 is fully drilled, in particular if the fixing member 1 is drilled into the support member 2 This is even more the case because a large torque is required to drill the fixture 10 into the support 2. In the embodiment shown in Fig. 3, the fixture 1 () includes a wall 39 that is thickened at the recess 42 to form a hump 66 that reinforces the recess 42. The thickened wall 39 of the projection 51 extends along the entire axial length of the recess 42 to sufficiently support the recess 42 during drilling into the fixture 10. The hardness and density of the wood in the wood support 2 may vary widely. The change in hardness _ and density causes the flange 4G to be buried within the drywall i so that the trailing surface 41 of the flange is "flat or lower" to the required variation in the installation torque. Further, when the flange W is buried in the dry wall, the torque required to drill the fixing member 1 is greatly increased as compared with the case where only the fixing member is drilled into the dry wall 1 and the support member 2. In some cases, the buried torque is increased to such an extent that it is difficult for the user to provide, and = only the flange 40 is buried, and the user has to excessively rotate the fixing member and peel off some of the dry wall 1. When the required torque is too large (i.e., greater than 5 inches * pounds), it is difficult for the 26 1281005 to be buried in the flange 40 with a hand tool. · In order to overcome this burying problem, the flange of the fixing member 10 can be changed to ψ, & η 贞 贞. In one embodiment (not: the fixture i. does not contain the flange or the diameter of the included flange: the thread top (4) c of the 19, so that the required burying is greatly reduced. ^ It is easier for the user to bury the flange or the end of the fixing member 1 ,, because the heart of the ugly six, ^ u is greatly reduced or 'ditched' for the sharp rise of the torque, thus reducing The possibility of excessive rotation. The fracture flange, the fixing member 10 may comprise a breaking flange 4, as shown in Fig. 8. The fixing member 丨〇 includes a weak member (weakeni called, cracked A break zone 68 is provided so that once the driver 43 applies a predetermined torque to the fixing member, the flange 4 is broken from the fixing body 12, so that the user does not have to be buried in the flange 4, The weak member has a scoring, a notch, a slu or a small hole. The breaking portion 68 is located at an axial position of the fixing member 1 , so that when the flange 4 is broken, the fixing member The remaining unbroken portion of the body 12 is at the height of the drywall surface 48 Upper or lower, such that the fixing member 1 〇 still functions and can accommodate the mounting fastener 4. The predetermined breaking torque of the flange 40' should be greater than the drilling of the dry wall 1 and the support member 2 for almost the entire length of the fixing member. The required torque is such that when the flange 40' breaks, the remaining outermost portion of the fastener 1 应该 should be flush with or slightly buried below the drywall surface 48, thus providing a good final appearance without further need The processing retouch depends on the particular application. 27 1281005 'A number of features of the fastener of the present invention have been described above, and as an example of the invention, several embodiments will be described below. The fracture tip embodiment refers to Figures 1-4 and 7, One embodiment of the fastener 1 includes at least a portion of the intermediate portion 20 and the frangible distal portion 22 such that the mounting fastener 4 can break the portion 16 of the body 12, with reference to Figure 7, such that the fastener tip is mounted 36 can extend beyond the original position of the drill tip 丨6 (refer to Figure 4). " 〇 4* 疋 1 1 〇 尖端 尖端 尖端 尖端 实施 实施 实施 实施 , , , 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 At 4 o'clock, the mounting fastener tip 36 breaks or pulls through the drill tip 16 of the fastener 10, as shown in Figure 7, the mounting fastener tip 36 will be able to extend further than the fixture body 12, such that the fastener The iq and the user installing the fastener 4 can use the particularly long mounting fastener 4 for various thicknesses: Γ: 3 other:: It must be worried whether the length of the fixing member 10 is sufficient to support the mounting buckle "Niu 1 2: Type" A shorter mounting fastener 4 can be used so that the mounting % cannot pierce the fixture body 12, but remains clasped after returning to the 4th and 7r entry holes 8 first 51 tabs 10, the buckle will be installed Piece 4 Drilling female 裴 fastener tip 36 against the inner hole 8 &# Α 9 radially located at the distal end of the ton eight 99...:i the inner rim 8 of the crotch portion 9, the end portion 4, acting on the distal end two: . When the user continues to drill into the mounting fastener - the portion of the securing: is large enough to cause the distal portion 22 to break on the remainder of the body 12. The drilled tip 16 of Figure 7 is split around the perimeter of the distal portion 22 by 28 1281005 and remains spliced with the mounting fastener 4 such that the drill tip i6 is pushed into the deeper portion of the support by the mounting fastener 4. . The tension generated by the fastener 4 against the end 9 of the hole is not retained. The slit 7〇 also helps to prevent the thread 23 from being loosened around the mounting fastener 4, which helps prevent the fastener 1 from coming out of the dry wall if the fastener 4 is to be removed from the fixture 10. In one embodiment, the slit 70 has a width of about 17 inches and a shallow depth of entry into the thread of about 〇·03 inches. The continuation of the embodiment shown in Fig. 2 illustrates that the distal portion 22 includes a weak member in the structure of the fixture body 12 to help ensure that the drill tip 16 breaks at the desired location. An example of a weak member is a weakened portion of the thread 23 at the desired axis break position, such as a longitudinal or transverse cut 70. Since the thread 23 provides structural support, the slit 7 in the thread 23 provides a small area of weakness in the fixture body 12 which is subjected back to Figure 3, where another weak member is included in the desired fracture position. A sharp step (sharp) 72 is created in the diameter of the hole 8. The step κ allows for the formation of stress concentrations which increase the likelihood that the drill tip 16 will break at the step 72. Further, the weak members include some grooves or some small holes (not shown) in the position of the fixture body 2 where the drilling tip 16 needs to be broken, such as the hole end in the substantially conical region. An inner slot at 9. In the split tip embodiment shown in Figure 9, the distal portion 22 includes a weakened region, such as a set of axially extending, equally spaced slits 74' narrow slits 74 that are axially oriented toward the drill. The hole tip 丨 6 extends. The weak zone provides a weak link in the wall 38 of the retracted portion 22 to allow the fastener 4 to sever the distal end portion 22 along the narrow slit when the fastener tip 36 is pressed against the end 9 of the end, such that The mounting fastener 4 pushes the drill tip 16' radially outward as shown in Figure U). The split portion of the drill tip 16 holds 14 the solid body 1 2 coupled, and the distal portion thread 23 remains sprayed with the support 2 to provide a strong hold between the fastener 1{) and the support 2 . Returning to Figures 2 and 3, the fracture line embodiment of @定件1G includes a pair of wings 54 extending from the distal end portion 22. Each wing 54 is coupled to the distal end portion 22 such that a portion of each wing 54 is coupled to a thread, a wire 23, 23, and a portion of each wing 54 is mounted on the drilled thread root 30. The wing 54 of the fixing member 1 protrudes radially outwardly 'but also protrudes slightly downward in the axial direction and includes a sharp point (P〇im) 55, and the direction of the sharp point is substantially opposite to the direction of the drilled tip. =, used to cut dry wallpaper 49 to avoid tearing paper 49. In one embodiment, the different 54 «the retracted portion 22 projects radially outwardly" is between about 2.1 inches and about 1414 inches from the axis 6, preferably about 〇ιι英吋And the axial length of the wing 54 is between about 6 inches and about 9 inches. In one embodiment, the pair of wings 54 spans the width of the pair of wings 54 w " Between 2 miles and about 〇 2 8 inches, preferably about 2 2 inches. Most of the drywall 1 used in the phantom has a thickness of 1/2 inch or 5/8 inch. This is preferred because the length DL of the proximal portion 18 including the flange 40 is about 7/16 inch. Between about 3/4 inches, preferably between about 1/2 inch and 11/16 inches, about 5/8 inches. The length 讪 of the proximal portion 18 and the flange 4〇 is approximately equal to the length of the intermediate portion and the distal portion 22, respectively. In a uniform embodiment, the proximal end portion 18 has a thread top diameter DC between about 〇·45 inches and about 5255 525 inches, preferably about 〇·48 inches, and convex 30 5^8100 edges. The thread root diameter DR near 40 is between about 24 inches and about 英英, preferably about 1/4 inch. The thread height is between about 75 knots and about ou. Preferably, the threaded root 26 of the proximal portion 18 of about 1/8 of the england is tapered at an angle of about 1/2 degree and about 3 degrees with respect to the axis 6 at each side of the intermediate portion 2 (4). Preferably, it is about 1 degree. Between the quarters of the 乂 fixed part (4) intermediate part 20 in the "❹18 diameter MC system is about 0.26 英 pairs and about 〇3 tired, Wen Hao. 28 inches, near the near part 丨8, B, preferably The threaded silver diameter MR system near the system is between about 忖? 忖 and about i/4 英奴, preferably the Xiao G 2 呼古声 MH is between about 0.01 inches 忖 ',, 糸 度 U ..., and the angle at which the middle portion tapers is relative to the axis 6: 22, preferably about 2.25 degrees. The angle at which the thread root 26 tapers in the first, middle, and middle turns is about the same: The angle of taper. A, the root of the file 28 0 23: The maximum thread top diameter TC of the 2nd core portion 22 can be between about the thread root straight through the tR system between about G.18 (four) and about. The second best system 〇. 2 inches, the thread height is between, and the day between the ruts, compared with the community and from the n · 02 吋 and about 〇 · 07 英 tip 16 gradually change:, the angle: 5 吋 ' and drill the thread root 30 between the bores, preferably: two relative axis 6 is between about 10 degrees and 2 degrees ML can be:: the total length of the middle portion 20 and the distal portion 22 English leaves..../2 central and Between about 7/8 inches, preferably about 5/8 31 1281005, the fasteners include a plurality of axially extending ribs 58 mounted on the threaded root 28. In these embodiments, the ribs 58 From the thread root 28, the outward bulge is greater at the drive end of the rib 58 than at the trailing end, as shown in the first figure: In one embodiment, the length RL of the rib 58 is between about 〇 2 between the central time and about 0, 36 miles, the 'best system is 28 inches, the width (10) is between about 0.04 inches and about 〇" between the English and the best. The thread root 28 protrudes about 15 inches. Can opener embodiment ❿ Referring to Figure 1H3, these figures show an opener embodiment of the fixture 1〇b, wherein at least the outer diameter of one of the intermediate portion 2〇b and the distal portion A milk is smaller than the thread top diameter Alternatively, the outer diameter of the fastener 4 can be mounted such that the fastener thread 5 can penetrate at least the intermediate portion m and the distal portion to allow the fastener tip 36 to extend beyond the original position of the drill tip 16b. As shown in Fig. 13, the wall between the hole 8 and the intermediate portion 2b near the distal portion or the distal portion 22b is sufficiently thin and close enough to the axis 6' to allow the fastener thread 5 to be mounted. It is possible to cut through the wall _, · cut around the periphery of the fixture body 12b' such that the drill tip (10) is no longer coupled to the remainder of the fixture body 12b. The bore center garment is separated from the remainder of the body 12b but remains engaged with the mounting fastener tip 36, similar to the clip end 6 shown in FIG. In order to allow the mounting fastener thread 5 to cut through the wall 38b, the I 鸠 is placed closer to the axis 6 ′ so that the corresponding thread root diameter applied to the middle portion is also smaller. This makes the torque required to mount the fastener smaller and requires Less than 32 1281005 of manufacturing materials. The fastener 10b can also be compliant with a set of wings 54b of the wing 54 of the fastener 1 of the fracture tip embodiment. Less In one embodiment, the wings 54b extend axially but have no sharp edges that are scratched on the surface of the dried stem 1. As described above, the proximal portion 18b of the can opener embodiment of the fastener 1 Ob is substantially the same size as the proximal portion of the fracture tip embodiment of the fastener described above. Just fixed #10b middle part 20b and 2nd

In the figure, the middle portion 2 of the solid element 1 is slightly different. The angle at which a portion of the intermediate portion of the thread root 28b tapers toward the distal portion 22b is significantly greater than the angle at which the proximal portion of the threaded root 26b tapers, such that the support gripping thread root 28b is thinner than the support clip of the fracture tip embodiment Holding the threaded root 28° support member to clamp the thinner root of the threaded root 28b allows the mounting fastener thread 5 to cut through the wall 38b' and thereby cut a portion of the drill tip end 6b from the remainder of the fixture body 12b. In one embodiment, the thread root diameter MR of the intermediate portion 2〇b is between about 0.16 inches and about 0 22 inches.

The best is about 0. 2 miles. The distal end portion 22b of the fixture i〇b also has a maximum thread root diameter and a thread top diameter smaller than the thread top of the fastener 1 of the fracture tip embodiment. The tip bypasses the embodiment with reference to Figures 14-18. In another embodiment of the fastener, one of the intermediate portion 20c and the distal portion 2 2 c can be spurged by the fastener tip 3 6 Wearing 'in order to mount the fastener tip 36 can bypass the drill tip 1 6 c. In the embodiment shown in Fig. 15, the hole 8c does not substantially protrude into the intermediate portion 33!281〇〇5

2 Ο c 'So basically all φ BB 邛 middle part 2〇C and far end part 22e B hair,, this is the most clear in the 15th picture of the gentleman "c疋贯~« The hole ar eggs in the intermediate end portion 22c | 4 1 knife 20C and retreat 8c are small or not, so this small diameter, which makes the solid-to-near knife can be compared, so that the service member 1c It is required to be small and easy to be drilled into the dry wall! And the support member is torqued faster than the 杈############################################################################# And the middle portion of the distal end portion 8-9 is also relatively strong in construction. In the embodiment, the fracture tip embodiment of the mouthpiece 10, 10b is described.

Compared with the example, the middle diameter of the β8 on t U is the middle of the shell but the thread top diameter MC of the knife 20c is between the time and the u2 Yingnu, compared with the (4) about Q2 seal. The hole 8C of the fixing member 1 〇C enables the mounting fastener 4 to cut the side wall 38c and advance through it. Then, when the mounting fastener 4 passes, the anchor portion 4 will be the middle portion 2〇c and the hole The tip Uc is pushed to the side, as = ΐ: Γ., " middle portion 2 °c keeps it attached to the solid body 12c so as to be pushed to the side by the mounting fastener 4, so that the middle 4 knife 20c remains The support member 2 is engaged to prevent the fixing member from being

Pull and jack up. In the embodiment shown in Fig. 15, the hole 8c includes a bearing surface 78c which is inclined toward the thin portion 76 at the hole end 9c. When the mounting fastener 4 is drilled, its tip end 36 abuts against the inclined bearing surface 78c, thereby causing an eccentric action to bias the intermediate portion 2c and the distal portion 22c sideways. With continued reference to Fig. 16, a thin region 76 can be obtained by the flat portion 52c extending through the intermediate portion 20c. There may also be a slit 34 1281005 80 in the intermediate portion 2〇c near the intersection of the inter portion 2Qc and the proximal portion 18c. When the intermediate portion 20 is fitted with the fastener 4 8〇, the rotation of the intermediate portion 20 is assisted. Use or eccentricity when you are next to it.

Open Tip Embodiment In the embodiment of the opening tip of the fixing member φ ^ 1 〇d shown in Fig. 19, the 'end portion 22d has no drilled dust hole and has an open drilled tip 16d. The open drilling tip i 6d allows the 俨 壮 λ λ garment fastener 4 to be drilled in this way, even

The front end 36 of the maid's clothing fastener can be drilled through the opening hole μ, and the width of the fastener is large, and it is not necessary to pierce the mouth of the knife holder 1 〇d or make the part fixed #1 dry 1 Ud, and there is The fixing member 1 Od at the open end still grips the support member 2.

Fix #10d is similar to the fixture μ of the fracture tip embodiment except that the drill tip portion from the drill tip is predetermined. Preferably, the inner diameter of the hole 8d extending all the way to the drill tip 16d is larger than the thread root diameter of the threaded mounting fastener 4, preferably about equal to or slightly larger than the threaded top diameter of the threaded mounting buckle #4. So that the ampoule fastener 4 does not have to pierce the drill tip 1μ too much. Preferably, referring to Fig. 19, the open bore tip 16d includes a centering element 82 that engages the drywall 1 at the beginning of the drywall to ensure the fixture丨〇d can drill into the drywall 1 at the desired location. The punch 82 can include a set of thin legs 83 that intersect at a point 84. The thin legs 83 have sufficient structural strength to be able to dry the wall at the beginning, but the final leg 83 can be broken by the force of the fixing member 1 od into the dry wall} and the support member 2. 35 1281005 Installation method The method for the user to install the long-loading fastener 4 on the support member includes the following steps: lifting; -1 牛1〇, pen length fixing member...-suitable for accommodating slim. h having a flared end 14 of the torsional transmission surface 15, i 8, a drilled tip 16, a near-flare end 4 material == 14 phase 2G and - extending to the distal end of the drill tip "6" ^ 8, - in

The proximal portion 18 has, for example, a dry wall clamping thread 19 - a screw: 22, wherein: the outer portion of the tired line has a thread root 26, a threaded screw, an outer portion 27 and a thread height DH. The outer portion of the thread of the thread crest thread 21 of the intermediate portion C, the outer portion of the thread has a thread crest 29 with a threaded top diameter MC and a bite: a root 28, a top diameter Generally less than the dry wall (four) degrees (four), the thread MH is substantially smaller than the drywall clamping thread height DH, and (four) the pattern two degrees 22 has a thread such as a drilling thread 23, the m end portion of the drilling tip 丨 6 Gradually 蜱,,, '11, the external thread of the thread has a thread that gradually tapers 16

The thread crest 31 and a thread π have a threaded top diameter TC. The thread top diameter TC is substantially small dry wall 蝉: ""V Wending diameter DC' the thread height ΤΗ Roughly smaller than the 4 threads by two degrees DH; the drill tip 16 is drilled into the drywall i, the surface 48' and drilled into the support 2 and ^^" 22 drilled through the drywall 1 long Anshen The button is inserted into the threaded hole 19 to fit the dry wall! The female clothing fastener 4 is inserted into the shaft hole 8 of the fixing member 10. In one embodiment, the Anlugu, earth, and π A fasteners are fastened. The tip 36 extends to the drill tip t::I includes the steps of: piercing the mounting fastener 4 at least in the middle; one of the knife 20 and 遂jr and the portion 2 2, for example 36 1281〇05*, if installed The fastener thread 5 cuts through the wall 38b of the intermediate portion 20b, as shown in Fig. 13, or with the mounting fastener tip 36 piercing the side wall 38c or the drill tip 16c of the intermediate portion 2〇c, as in the 17th- 18 is shown; a part of the fixing member 1 is broken by the mounting fastener 4, such as the drill tip 16, as shown in Fig. 7; the mounting fastener 4 is engaged with the support 2 and the object 3 is Ann To the fastener 4, as shown in Figures 7, 10, 13 and 18, the manufacturing method refers to Figures 20 and 21, and the method of manufacturing the fixing member 10 comprises the steps of: providing a mold 1〇〇, the mold 1 The cavity has a cavity u, a flared end 114, a proximal section adjacent to the flared end 114, an intermediate section 120, a distal section 122, and a substantially at the flared end The second end 116 of the opposite end and an elongated core 1 8 extending into the cavity 11 at the flared end 114, wherein the proximal end 118 has an internal thread 119 having a threaded root 126 and a belt Threaded crest 127 having a threaded top diameter MDC and a thread height MDH, an intermediate section 120 having an internal thread 121 having a thread root 128, a thread crest 129 with a threaded top diameter MMC and Cong, The thread top diameter MMC is substantially larger than the first-stage thread top ^2, and the 3-sea thread height MMH is substantially higher than the first-stage thread ^the end section m has an internal thread 123, and the internal thread is 12 116 taper thread root 13〇, one belt; thread crest 131 4 breaking force, and top 仫Mil ratio ^ϋ 纹 高度 height MTH, the thread彳i MTC is generally 匕 匕 弟 又 又 又 又 MD MD MD MD MD M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M The cavity 110 is formed into a solid member 10, and the shape of the fixing member 丨〇 from the mold i of the mold I 110 is the same as that of the fixing member 10, so that the fixing member 10 can be formed when the material is cured. U疋1 dry gossip. Brother, the flared end 114 of the mold forms the flare of the fixture 10, the second end 116 of the mold forms a large bore T =, the proximal section 118 forms a proximal portion 18, and the intermediate section 120 forms an intermediate portion 20' The distal section 122 forms a distal portion 22 and the elongated core 108 forms a shaft aperture 8. The novel fastener of the present invention allows the user to mount the fixture in the dry without concern for the presence of a support at a fixed location behind the drywall, or it is known to have a support. Since the mounting fastener tip can extend through the end of the drill + hole of the fixture, the fastener allows the user to use different lengths of mounting fasteners. The small head embodiment now returns to the embodiment shown in Figures 22 to 24, a fixture 210 for use with a frangible material, such as drywall 1, which includes a body 212 having an axis 2〇 6; a shaft hole 208 for accommodating a mounting fastener, a proximal end 214 and a drilled end 2丨6; a proximal end portion 218' adjacent the proximal end 214 having a thread for engaging the drywall 1 9; and a bore portion 224 adjacent the bore end 21 6 . The thread 2丨9 has a thread root 226 with a thread root diameter PR and a thread crest 227 with a top diameter pc. The head member 240 at the proximal end 214 has a 38 l28l〇〇5 at the proximal end 214. The outer diameter HD' is smaller than the top 21〇 forward through the dry wall "Temple d 210 contains the features of the fixing piece, helping to prevent the dry wall 1 from bubbling. The head returns to the 23rd and 24th figures, the head neighbor, Shishi The fragile material 2 that enters the drywall 1 front is configured to blister when the fixture 210 is blistering. The head 240 can have two or two: reduce the visible deformation of the drywall 1 or the head and flange, for example, the second , which is significantly smaller than the conventional fixed

4〇. When fixed, the small outer diameter hd of the head 邛 240 can reduce the area of the head 240 that advances through the dry wall. The head 240 is coupled to the proximal end 214 of the body 212, the head 24 includes

Small slot 242 to facilitate the use of the drive, for example - the screwdriver's =. The recess 242 includes a torsion transmitting surface 215 that allows the actuator to transmit torque to the fixture 21G for rotation. In one embodiment shown in the second figure, the recess 242 has a cross shape to accommodate ten fields of a Phillips screwdriver or a power screwdriver. The head 240 has an outer diameter HD that is smaller than the maximum outer diameter or top diameter PC of the drywall engagement threads 219. When the fastener 21 is drilled, the root 2 26 of the proximal portion 218 will be removed from the original and a hole will be created through the drywall. Therefore, the diameter HD of the head portion 240 is preferably as close as possible to the thread root diameter pr of the drywall thread 219, allowing the head portion 24 to protrude only slightly beyond the hole in the drywall 1 so as to have a small amount for the head 240. The drywall 1 displacement. The small outer diameter HD also allows the head 240 to be easily concealed beyond the small items mounted on the mounting fasteners, such as the curtain bracket and the small cieat 39 1281005, so that once When the small item is installed, the fixture head 240 can be hidden from view. The outer direct control HD of the head 240 should be small enough to effectively prevent the dry wall 1 from foaming, but the outer diameter HD is still large enough so that the head 240 can accommodate the recess 242' while surrounding the recess At the proximal end 214 of the slot 242, the wall of the body 212 is still of sufficient thickness to provide sufficient structural integrity to withstand the torque required to drill the fixture 210 through the dry wall, and preferably When the fixing member 210 is drilled through the dry wall sill and the support member 2 mounted on the drywall 1, such as a wooden struts, the fixing member is not broken.

In one embodiment, the head portion 240 has an outer diameter rib that is between about 50% and about 85% of the top diameter PC, preferably between about the top diameter PC of the training. In one embodiment, the head diameter hd is a tender top buckle. More desirably, the outer diameter rib of the head 24q is substantially similar to the thread root diameter pR of the thread 219 and may be between about i and about ^5 ^ of the thread root diameter PR, preferably Between the thread root diameter PR of about i 45p. The outer diameter HD of (10) is about 29 times the thread root diameter pR. J in the embodiment of the order, head 24. The outer diameter is about 忖. Between 4 and 4 inches, it is preferable to be between 于, 々, U5, and in the embodiment. 43?·33 pairs to about °.35 inches-thread roots, which is between about ": two: and the thread has a preferred system between about 0.225 inches to about ^ to, between 3 pairs , in the example, about 0. 245 inches. Between the two sides, in an implementation, since the head 240 is relatively smaller than the dry wall engaging threads 21, the fixing members 21 〇 40 l28l 〇〇 5 will be drilled to the appropriate depth, for the user will It is not easy to confirm whether the condition of the element has been drilled to the appropriate depth. When the large part is installed in the drywall 1, the user can feel the increase of the torque. The embodiment of the embodiment shown in Figure 2 3 does not feel a sudden increase in this torque because the head 240 has a small outer diameter HD. Therefore, the user may have to make it necessary to drill into the fixture 21 , until the visible head 24 齐 is flush with the drywall surface 248 or just below the drywall surface 248, as if at the appropriate depth, It can be determined that the fixing member 21 is already at the proper installation depth. t Returning to Fig. 25, in an alternative embodiment of the fastener 21, an annular washer or cap 246 is mounted on the head 240 such that when the fixture 210 is drilled At the appropriate depth and the head 24 is positioned in position within the drywall i, the cover 246 is removed from the engaged state with the head 24 and popped off. The head 240 can include a slot 241 for receiving the latch 246, and the cover 246 can include an inner edge (inteHoI. lip) 247 of the annular cover 246 that mates with the slot 241, such as As shown in Fig. 25, the cover 246 is engaged with the head 240' to be stably supported until the cover 2 is reached at a point to be pushed out. The cover 246 is preferably made of a plastic material and can be formed by cutting an annular disk with a suitably sized plastic sheet or by a plastic spacer made of a mold. The proximal portion returns to the 22nd and 23rd views. The proximal portion 218 is similar to the proximal portion 18 of the fastener ίο shown in Figures 1 through 3, the proximal portion 218 including 41 ? 281 〇〇 5 The high thread 219 of the drywall 1 wherein the high thread 219 has a threaded root 226 with a threaded root diameter PR and a threaded crest 227 with a threaded top diameter pc. Preferably, the threads 219 are also configured to reduce the visible deformation of the drywall 1 when the fasteners 21 are drilled into the drywall 1, which helps to prevent foaming on the drywall surface 248. To help prevent foaming, the threaded top diameter Pc of the thread 219 can be slightly lowered so that when the fastener 210 is drilled, there will be fewer threads 219 that are known to be squeezed out of the dry step. In the embodiment, preferably referring to Fig. 23, the reduction in the thread top diameter can be replaced by providing a substantially flat portion 234 at the top 227 of the thread 219 instead of the one shown in Figs. The substantially deflected thread crest 27 of the embodiment of the fixture 10 is achieved. The substantially flat portion 234 is offset slightly from the thread crest 227 such that the entire thread top diameter PC is lowered. The threaded top diameter pc can be lowered between about 2% and about 10%, preferably between about 3% and about 7%. In one embodiment, the diameter from the top of the thread pc can be reduced. About 5% of the flat portion 234. In an embodiment, the thread 2 19

A generally helical thread 219 is included, and the flat portion 234 is a generally helical strip extending along the top _227 of the thread 219. Preferably, the surface of the flat portion 234 is substantially parallel to the axis 206. The thread 219 with the flat portion 234 can be made by snagging or casting a fixing member 210 having a flat portion 234, or by initially forming a thread d 234 similar to the fixing member (file threaded ribs 227 in the manner of threads 2 19 to form, followed by flat portions down) or other reductions formed with flat threads 219. 42 1281005 Since the thickness of the shaft of the screw, the text 2 19 is kept the same as the thickness when the flat portion 23* is not formed, a substantially flat portion 234 is provided at the thread crest 227 instead of only making - with _ The deflected top of the smaller thread top diameter is the main one. It is desirable that the thread 219 can provide more structural support when the fastener 胄 212 is drilled through the drywall = support 2, and the thicker the screw, 219, 219, the more the thread 219 can provide stronger support of the body 212. . The flat portion 234 should have a range of _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The rrpc is still able to provide a suitable support strength in the drywall 1, and when the body 212 is drilled into the stem 2 and the support 2, the thread 219 can be raised by 2%: the strength of the structure. The axial extent LE of the S-head 240 may be between about 45 〇 / to about 1 〇 / ° of the threaded tip diameter PC 219, preferably about 八. = 6% between the hard work pc. For the embodiment, the flat portion :::: range LE is between about. It’s about 15 miles. . The 仫 is between about 2 inches and 〇 25 inches. Drilling part: Refer to the figure..., the fixing part of this Zhao 212 package = use two drills to dry #1' and preferably use part 22〇二二=. The drilled portion 224 can include an intermediate portion 2. With respect to: to =, the drill tip is similar to the distal end portion 22 of the fixture 10 shown in the middle of Figures 1 to 3. The intermediate portion 22A can also include a thread 221, in any case 43 l28l〇〇5 portion 22. The thread 221 has a substantially smaller top diameter IC, so that if a support member is encountered, the torsion force required for the monument "thread", M?v door opening P thread 221 to drill the tooth through the support member will not Will be too high, of which 兮

杈 1C is derived from the drywall engagement thread 219 of the proximal end portion 218 = thread top thread top diameter. The middle portion 敎221 is in contact with the support member, and if the support member is advanced, the root portion 228 of the intermediate member screw that is fastened to the dry portion is substantially flush with the proximal portion (four). The same diameter IR of the diameter PR. As the body 212 extends from the head state toward the drill tip 222, the root 228 of the root portion intermediate portion 220 of the proximal portion 218 may taper slightly. In an embodiment, the intermediate portion 220 includes a generally helical thread 221 extending from a generally helical thread 219 of the proximal portion 218 having a transition region between the high threads The height is between the threaded top diameter PC of the proximal end portion thread and substantially less than the thread height I and the thread top diameter Ic of the intermediate portion thread 21. Continuing to Fig. 23, the drill tip 222 can be similar to the end portion 22 of the fastener 1〇. Preferably, the drill tip 222 is generally conical, and may include threads 223a and 223b having a small thread height and a threaded top diameter DTC that enables the threads 223a to 223b to engage a support member. And drilling the drill tip 222 through the support does not make the user feel extremely difficult. In one embodiment, the drill tip threads 223a and 223b include two substantially helical threads 223a and 223b' disposed about the drill tip 222 in a double helix. One of the two generally helical threads 223a extends from the helical thread 22 1 which is generally intermediate portion 220. The double helical threads 44 1281005 • 223a and 223b allow the drill tip 222 to be evenly drilled into the support and uniformly provide additional fixation strength around the bore end 222. The drill tip 222 or intermediate portion 220 may also include one or more wings 254' for drilling through the drywall 1' such that the hole drilled through the drywall 1 has a desired diameter. Preferably, as previously described, the wings 254 are designed to break the fastener 2 when it encounters a support such that the wings 254 do not drill through the support. In a preferred embodiment, the securing member 210 includes a body 212 having an axis 206; a shaft bore 2 容纳 8 for receiving a mounting fastener; a proximal end 214; extending from the proximal end 214 a high threaded proximal end portion 218 having threads 219 for engaging a frangible material, such as a dry wall; and a self-drilling portion 224 having threads 221, 223a and 223b, the threads 221, 223a and 223b It can be used to engage a substrate adjacent to the drywall, such as a support member, and the length of the self-drilling portion 224 is greater than the thickness of the dry wall i. The thread 2丨9 of the proximal end portion 2丨8 has a thread root diameter PR and a thread top diameter pc, and the threads 221, 223a and 223b of the self-drilling portion 224 have a thread root diameter IR, DTR and a thread top The diameter 1 (> DTC '忒 thread top diameter DTC is substantially smaller than the thread top diameter pc of the proximal portion 2丨8 and less than a head 24〇 at the proximal end 214, the proximal end 214 having an outer diameter HD, which is smaller than the threaded top diameter PC of the thread 21 9 of the proximal portion 218. The threads 221, 223a and 223b of the intermediate portion 220 and the drill tip 222, ', are included in the grooves 229, 23 1 thereof The portion is substantially flat to further prevent the drywall 1 from foaming. In any preferred embodiment, the threads 221, 223a and 223b of the drilled portion 9 2 4 M ' do not include, for example, the proximal portion 45. The thread 219 of 1281005 218 includes a substantially flat portion. Preferably, the fixing member 2 i 〇 includes a 曰 或 or a 曰 曰 配置 配置 配置 配置 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体 本体The social Du m + fork and the shovel support, if a support member is encountered in the reinforced drilled dry wall 1 Μ Μ 守The crucible is subjected to a twist required to pass the drilled end 216 of the fixture 2 10 to the support member adjacent to +, ^ 丨 I, and the support member is substantially harder than (iv) i. As shown in Fig. 22, the reinforcement member can be a rib (10) (10) on the outer surface of the body 212, and a rack 244 positioned in the shaft hole 208, wherein the rack (4) also engages the thread of the mounting fastener. The threads 221, 2, and (4) of the intermediate portion 22 are also provided with reinforcement and support to the body 212 to ensure that the drill tip 222 and the intermediate portion 22 are passed through a rigid support member, such as a wooden post. 'Do not collapse. Although the above description of the present invention enables those skilled in the art to make and use the present invention in a manner that is believed to be the best, those skilled in the art will appreciate that the ft is made in the specification. Description, also exists: the possibility of two specific exemplary embodiments and methods of change, combination and equalization. Therefore, the present invention should not be limited by the above-described embodiments and methods, but should be limited by the scope and spirit of the invention. / BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective perspective view of a self-drilling fixture according to the present invention. Fig. 2 is a side elevational view of the self-drilling fixture of the present invention showing an embodiment of the tip. < 46 1281005 Fig. 3: Example of a broken tip for a self-drilling fixture. Figure 4: A side cross-sectional view of a self-drilling, split-tip embodiment for mounting in a frangible material and support. Drilling fixtures are broken. II tj, j 透视 买 买 买 , , , , , , , , , , , 透视 透视 透视 透视 透视 透视 透视 透视 透视 透视 透视 透视 透视 透视 透视 透视 透视 透视 透视 透视 透视 透视 透视 透视 透视 透视 透视 透视 透视 透视view. Broken d

Figure 7 is a cross-sectional view of the installed self-drilling fixture. The mounting fastener has been inserted through the self-drilling fixture. Example (4) | Brother 8 Figure · Side section view of the fracture flange embodiment of the self-drilling fixture . Figure 9: Side view of a split tip embodiment of a self-drilling fixture. Figure 10 is a side cross-sectional view of a self-drilling fixture splitting tip embodiment in which the mounting fastener has been inserted through the fixture. Figure 11 is a side view of an embodiment of a can opener for a self-drilling fixture.

Figure 12: A side cross-sectional view of an opener embodiment of a self-drilling fixture. Figure 13 is a side cross-sectional view of an embodiment of a can opener for a self-drilling fixture in which the installed fastener has been inserted into the self-drilling fixture. Figure 14 - Side view of the embodiment of the tip of the self-drilling fixture. Figure 15: A side cross-sectional view of the embodiment of the tip of the self-drilling fixture. Figure 16 is a side elevational view of the embodiment of the self-drilling fixture with another drill tip. Figure 17 is a side cross-sectional view of the tip of the self-drilling fixture bypassing the embodiment, 47 1281005 wherein the mounting fastener begins to pierce the fixture. Figure 18 - Side cross-sectional view of the tip of the self-drilling fixture bypassing the embodiment wherein the mounting fastener has bypassed the drill tip. Figure 19 is a side view of an embodiment of a self-drilling fixture opening tip. Figure 20: Side cross-sectional view of an open mold for forming a self-drilling fixture. Brother 21 ® : A side profile view of a closed mold that forms a self-drilling fixture. Figure 22: A perspective view of a fixed piece used to prevent foaming of drywall. Self-drilling of the head

Figure 23: Side view of a small head embodiment of a self-drilling fixture. Figure 24: The small head of the self-drilling fixture 2 5 Figure · Side view of the small head self-drilling fixed case. 'The alternative head of the piece and the end view of the cover embodiment. [Main component symbol description] 1 Drywall 3 Object 5 Thread 8 Shaft hole 9 End 10 Self-drilling fixture 10c Self-drilling fixture 12 Slender body Support member Fastener

6 8c 9c l〇bl〇d 12b Axis shaft hole end self-drilling fixture self-drilling fixture fixing body 48 1281005 14 flared end 15 torque transmitting surface 16 drilling tip 16' drilling tip 16b drilling tip 16c drilling Hole tip 16d Drilling tip 18 Proximal end portion 18b Proximal end portion 18c Proximal end portion 19 Clamping thread 20 Middle portion 20b Middle portion 20c Middle portion 21 Clamping thread 22 Distal portion 22b Distal portion 22c Distal portion 23 Drilling Thread IV first external thread 23, second outer thread 26 thread root 27 thread crest 28 thread root 28b thread root 29 thread crest 30 thread root 31 thread crest 34 screw 35 head 36 fastener tip 38 wall 38b wall 38c Wall 39 Thickened wall 40 Flange 40' Flange 41 Upper surface 42 Groove 43 Screwdriver 44 Rack 45 Mating screw 49 Drilling tip 48 Drywall front surface paper 50 Drywall back surface paper 52 Flat section flat section 54 Wing 55 Pointed Thread Lead 58 Rib Fit Screw 62 Transition Zone Neck 66 Bulge Fracture Zone 70 Notch Step. 74 Narrow Slot 76 Thin Zone Support Face 80 Incision centering piece 83 Thin leg point 108 Slender core mold cavity 114 Flared end Second end 118 Proximal internal thread 120 Middle section internal thread 122 Distal section internal thread 126 Threaded root crest 128 Threaded root crest 130 Thread Root 50 1281005 131 Thread crest 206 Axis 208 Axis 孑 L 210 Fixing member 2105 Fixing member 212 Body 214 Proximal end 215 Torque transmitting surface 216 Drilling end 218 Proximal end portion 219 Thread 221 Thread 222 Drilling tip 223a Thread 223b Thread 224 Drill Hole portion 226 Thread root 227 Thread crest 228 Root 234 Flat portion 240 Head 2405 Head 241 Slot 242 Groove 224 Rack 246 Cover 247 Inner 248 Drywall surface 254 Wing 258 Rib AT Thickness DC Thread top diameter DH Thread height DL Length DTC Thread Top Diameter DTR Root Diameter DR Diameter FD Diameter FL Slender Body Total Length HD Outer Diameter 1C Thread Top Diameter IR Thread Root Diameter 51 1281005 LE Axial Range MC Thread Top Diameter MC” Thread Top Diameter MDC Thread Top Diameter MDH Thread Height MH Thread Height ML Length MMC Thread Top Diameter MMH Thread Height MR Thread Straight M R5 Thread root diameter MTC Thread top diameter MTH Thread height NL Neck length P Moment PC Top diameter PR Thread root diameter τ Drywall thickness TC Thread top diameter ΤΗ Thread height

TR thread root diameter WW lateral width

Claims (1)

^81005, the scope of patent application: - a self-drilling fixture for a fragile material, comprising: a body, having an axis, a shaft hole for accommodating - fasteners, a close-up:: hole end a proximal portion adjacent to the proximal end and having a plunging end portion and a bore portion adjacent to the drilled end, the -μ thread having a thread root with a thread root diameter -/, a threaded crest of a diameter; and ' The outer 'is located at the proximal end' and the head has a smaller than the top diameter = please patent scope! The self-drilling (four) piece, wherein the outer tether of the head is between about 50% and about 85% of the top diameter. The self-drilling fixture of item 1 of the first aspect wherein the outer portion of the head is between about 1 and about 1.5 times the diameter of the thread root. Please select the self-drilling fixture of the scope of the patent, wherein the thread is included = a substantially flat portion at the top of the thread having an outer diameter of a top diameter.疋 呷 月 月 月 月 】 范围 范围 范围 范围 范围 范围 范围 范围 范围 范围 范围 范围 范围 范围 范围 范围 范围 范围 范围 范围 范围 范围 范围 范围 范围 范围 范围 范围 范围 范围 范围 范围 范围 范围 范围 刀具 刀具 刀具 刀具 刀具 刀具 刀具 刀具 刀具· a self-drilling fixture for use in a fragile material, comprising: a body having a sleeve, a shaft hole for receiving a fastener, an upright, a knife into the mountain, and a proximity to the proximal end Having a thread μ for spraying the friable material, for example, a proximal portion and a bore portion adjacent to the bore end, and 53 1281005, at the proximal end, urging into the fragile When the material is used, it is minimized. The shank is configured to advance into the visible deformation of the friable material according to the sixth aspect of the patent application scope. When the material is fragile, the visible deformation of the easy material can be minimized. And the self-drilling fixture of the patent -6, wherein the outer diameter of the head is smaller than a maximum outer diameter of the thread. 9. According to the patent pending self-drilling fixture of the sixth aspect, wherein the thread 1 has a thread root with a thread root diameter and a thread crest with a top diameter, and has a substantially flat shape at the thread crest. section. A self-drilling fixture according to claim 9 wherein the head has an outer diameter 'substantially similar to the diameter of the thread root. A self-drilling fixture for use in a fragile material comprising: a body having an axis, a shaft bore accommodating a fastener, a proximal end, a high thread proximal end portion extending from the proximal end, having a thread for engaging the frangible material, and a self a drilled portion, the thread of which can be used to mate a substrate adjacent to the frangible material, and the length thereof is greater than the thickness of the friable material, and wherein the thread of the proximal portion has a thread root diameter and a tip. Wherein the thread of the self-drilling portion has a thread root diameter and a top diameter, the top diameter of the self-drilling portion is substantially smaller than the top diameter of the proximal portion; a head at the proximal end, the head having a The outer diameter, which is 54 1281005, is the top of the thread of the proximal portion. 12 13 Depending on the scope of the patent application; <&& > The self-drilling fixture of the 11th member, wherein the thread of the proximal end includes a substantially flat portion at the top of the thread. According to the scope of the application of the π patent! [The self-drilling fixture of the item, further comprising a reinforcement member disposed on the body of the body to provide sufficient structural support for the body to receive the hole through the substrate adjacent to the fragile material; The required torque, 55