CN1549901A - 适用于复合木材的装饰螺钉 - Google Patents

适用于复合木材的装饰螺钉 Download PDF

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CN1549901A
CN1549901A CNA028154428A CN02815442A CN1549901A CN 1549901 A CN1549901 A CN 1549901A CN A028154428 A CNA028154428 A CN A028154428A CN 02815442 A CN02815442 A CN 02815442A CN 1549901 A CN1549901 A CN 1549901A
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休·麦戈文
��³�ж�
汤姆·德鲁切尔
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
    • F16B5/0275—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread the screw-threaded element having at least two axially separated threaded portions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
    • F16B25/001—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by the material of the body into which the screw is screwed
    • F16B25/0015—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by the material of the body into which the screw is screwed the material being a soft organic material, e.g. wood or plastic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
    • F16B25/001—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by the material of the body into which the screw is screwed
    • F16B25/0031—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by the material of the body into which the screw is screwed the screw being designed to be screwed into different materials, e.g. a layered structure or through metallic and wooden parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
    • F16B25/0036—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw
    • F16B25/0042—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw
    • F16B25/0057—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw the screw having distinct axial zones, e.g. multiple axial thread sections with different pitch or thread cross-sections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
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    • F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
    • F16B25/0036—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw
    • F16B25/0042—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw
    • F16B25/0057—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw the screw having distinct axial zones, e.g. multiple axial thread sections with different pitch or thread cross-sections
    • F16B25/0063—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw the screw having distinct axial zones, e.g. multiple axial thread sections with different pitch or thread cross-sections with a non-threaded portion on the shaft of the screw
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
    • F16B25/0036—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw
    • F16B25/0042—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw
    • F16B25/0073—Screws that cut thread in the body into which they are screwed, e.g. wood screws characterised by geometric details of the screw characterised by the geometry of the thread, the thread being a ridge wrapped around the shaft of the screw characterised by its pitch, e.g. a varying pitch
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
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    • F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
    • F16B25/10—Screws performing an additional function to thread-forming, e.g. drill screws or self-piercing screws
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
    • F16B35/041—Specially-shaped shafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
    • F16B35/06—Specially-shaped heads
    • F16B35/065—Specially-shaped heads with self-countersink-cutting means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B33/00—Features common to bolt and nut
    • F16B33/02—Shape of thread; Special thread-forms
    • F16B2033/025—Shape of thread; Special thread-forms with left-hand thread
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • F16B23/0007—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53478—Means to assemble or disassemble with magazine supply
    • Y10T29/53487—Assembling means comprising hand-manipulatable implement
    • Y10T29/535—One work part comprising nut or screw
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/75—Joints and connections having a joining piece extending through aligned openings in plural members

Abstract

本发明涉及一种用于复合木材的露台螺钉，但是其也可以用于其它木制品，例如压力处理的木材，本发明的露台螺钉形成有头部和杆部，该杆部具有直径不同的两个区域。在单位长度上，上部区域的螺纹数目大于下杆部的螺纹数目。上杆部的螺纹以反锯齿形的设计形成。杆部的下部区域终止于具有尖点的锥形远端，该远端引导螺钉穿过木材。在杆部的下部区域上形成螺纹。螺钉的头部形成有上表面、下表面和围绕头部的外周延伸的冠部。该冠部延伸超过头部的下表面，在冠部的下边缘和螺钉杆部之间形成凹陷区域。该头部还可以形成有下切口。并且，螺钉头部可形成有方形螺丝刀开口，该开口允许安装人员使用方形钻头安装螺钉。例如，开口可以是#2方形螺丝刀开口。应该理解，也可以使用不同尺寸的菲利普头或平头。

Description

适用于复合木材的装饰螺钉
技术领域
本发明涉及一种在露台(deck)建筑中适用于固定例如露台板(deck board)的木材的螺钉。尤其是，该螺钉适用于复合木材。
背景技术
为例如酒吧或饭店的民用或商用建筑配设露台是非常受欢迎的，因为这样可以提供户外聚会的场所。露台的存在提高了住宅或建筑的房地产价值。当天气很好时，人们很自然地倾向于在户外，无论是在后院进行烧烤或是和朋友、邻居一起放松。在天气较好的白天或傍晚，饭店顾客通常会要求坐在户外，甚至常常会在能够立即入座室内的情况下等待户外的餐桌。
通常，露台的结构件由压力处理的黄松制成。由于其合理的价位和对害虫和潮湿的高抵抗性，压力处理的木材对于露台结构是优选的。但是，由压力处理的黄松制成的露台的表面在经受长时间的暴露后趋于发生开裂、劈开、干缩翘曲、扭曲和碎裂。此外，黄松相对较软并易于磨损，尤其是在露台的高通行区(high-traffic area)。因此，每隔几年，财产所用人在不得不更换露台板中会面临可观的财力和人力支出。
考虑到用压力处理的黄松构建露台的缺点，许多房主和承建者正在为露台构建选定备用材料，例如，红杉、雪松、人造合成材料或热带硬木。近来，复合木材已经作为露台板材料的一种可选材料而引入。复合木材是一种用于露台板的很有吸引力的材料选择，因为其基本上不受腐蚀。复合木材由塑料和木材制成，例如碎屑和/或碎屑材料的混合物。所使用的材料包括但并不限于：塑料袋、塑料罐(例如用于牛奶或水的)、塑料碎屑，例如锯末和碾碎木材碎屑的木材。更高质量的复合木材可以由诸如聚乙烯、聚丙烯的纯塑料和碾碎木材碎屑制成。更高质量的复合木材和较低级别的相比，可以提供更真实的木质表面特征。复合木材露台产品可以从Fiberon Composites of NewLondon N.C和Trex Corporation of Winchester VA购买，此处仅指出了两个可能的供应商。
复合木材产品由于包括大量的可回收塑料而具有很好的环保性能。复合木材不会劈开、开裂或碎裂，从而为裸露的足部和孩子提供了没有碎片的安全表面。但是，复合木材要比标准的压力处理的黄松露台贵很多。高质量的安装对于确保材料中的大额投资是非常重要的。
标准木材尺寸(5/4和2X)和客户定制的塑料木材都可买到。可以通过使用标准工具和紧固件切割、成型和安装塑料板材。复合木材可以广泛应用于露台、扶栏和中间膨大的小圆柱。用来支持塑料露台的托梁常常需要使其彼此之间相靠近的距离小于16或24英寸，而16或24英寸分别是5/4和2X木质露台所要求的。对于更多的托梁，安装开支就更高，安装过程中需要更多将露台板和结构接合的螺钉。
使用复合木材的问题在于传统的露台螺钉在被钻入木材时会在螺钉的周围产生小丘或隆起。这些小丘或隆起的形成被称为“火山(volcanoing)”或者“蘑菇(mushrooming)”。“火山”是一种形象描述，因为螺钉落座于已经围绕其圆周升起的材料中，因而很像火山。这是由随着螺钉被钻入复合材料，螺钉取代复合材料的作用，迫使材料向上移动而引起的。这种效应在图6中有所描述，该图示出了被钻入塑料的现有技术的螺钉，火山51围绕在螺钉的周围。
为了提供适当的完工表面，必须利用适当的工具将火山重新槌入或冲入板中。尽管这种方式有时是有效的，但是在其他情况下，带有槌入火山的材料的表面并不美观。而且，如果不慎用锤子敲击到露台表面，将会在露台上留下锤头的印记。利用冲压来做上述工作可以避免锤印的问题，然而，和使用锤子一样，这样做也很费工。
因为使用塑料露台需要更多的底板托梁，因此，也就需要安装更多的螺钉。即使一个适中的露台也需要几百个露台螺钉，考虑到额外的劳动，每个附加的安装步骤都非常昂贵。
上述问题的另一种可能的解决方法是预先钻出螺钉孔，然后插入螺钉，但是，这同样也很费工且耗时。
发明内容
鉴于上述技术问题，本发明提供一种用于复合木材的露台螺钉，但是，其亦可用于其它木制品，例如压力处理的木材。本发明的露台螺钉形成有头部和杆部。在一个实施例中，杆部具有两个截面积不同的区域，其中，上部区域，即最靠近螺钉头部的区域的截面积大于下部区域的截面积。在另一个实施例中，上部区域和下部区域具有不同的螺纹类型，其中，上部区域中单位长度内的螺纹数目多于下部区域单位长度内的螺纹数目。在另一个实施例中，上部区域具有以倒锯齿形结构(inverted buttress design)形成的螺纹，其中，靠近螺钉头的螺纹的斜度大于位于杆部更向下的上部区域内的螺纹的斜度。
杆部的下部区域终止于具有引导螺钉穿过木质材料的尖端的锥形远端。螺纹设置在杆部的下部区域上。螺纹可以延伸到尖端，所述尖端可以是有钻孔能力的尖端，或者，可以使用另一种尖端结构，例如17尖端(17point tip)。
螺钉的头部形成有上表面、下表面和围绕头部外周延伸的冠部。该冠部延伸超过头部的下表面，在冠部的下边缘和螺钉杆部之间形成凹陷区域。该冠部可以是由平行于螺钉轴线延伸的裙部形成的从螺钉头的上表面向下延伸的圆周下切口。会聚的圆锥面限定出一个将螺钉头部的外周和螺钉杆相连的V形下切口。
此外，螺钉的头部可以设置有方形螺丝刀开口，以便允许操作者使用方头钻安装螺钉。例如，该开口可以是#2方形螺丝刀插口。应该认识到，也可以使用不同尺寸的菲利普头或平头。
在将螺钉安装到复合木材中的过程中，位于螺钉上部区域上的倒锯齿形螺纹导致由螺钉下部区域置换的木材向下返回到孔中。而且，如果有木材没有得到如此处理，该木材会被积陷在头部的凹陷区域中。相信这些特征中的一个或者两个将会减小火山或蘑菇现象的产生，即使没能够完全将其消除。
附图说明
图1是本发明一实施例的侧视图；
图2是根据本发明的、在其上形成螺纹的螺钉坯料的侧视图；
图2A是根据本发明的、在其上形成螺纹的另一种螺钉坯料的侧视图；
图3是本发明一实施例的端视图；
图4是本发明螺钉的头部的剖视图；
图5是适用于根据本发明的露台螺钉的螺钉尖端的透视图；
图6示出在复合木材中安装现有技术螺钉时发生的火山效应；
图7和8示出另一种可用于本发明的螺钉头部结构的透视图。
具体实施方式
图1示出根据本发明的露台螺钉10。如图所示，该露台螺钉设置头部12和杆部14。图2示出螺钉坯料10’，露台螺钉10由该坯料加工制成。杆部14设置有最靠近头部12的上部区域16和最靠近锥形远端20的下部区域18，螺钉尖端22位于该锥形远端20处。从图2中可以看出，上部区域16的截面积大于下部区域的截面积。图2A示出一种上下部区域的截面积基本相等的实施例。
尖端22具有锋利的尖，以便使其能够穿透材料。所述尖端可以为锋利的有钻孔能力的尖端，例如，具有20°到30°内角(included angle)的有钻孔能力的尖端。下部区域18设置有例如形成为连续螺旋螺纹的螺纹19，其始于尖端22或其附近，延伸通过锥形远端20上，并延伸过下部区域18，直到下部区域18和上部区域16结合的位置附近。螺纹19可以具有0.185-0.195英寸的大径和0.120-0.130英寸的小径，但是，本领域技术人员应该理解，其他可能的尺寸也是可行的。一种合适的螺纹可以是带有24°/24°螺距的#9-9螺纹。但是，其他的螺纹结构也是可行的，例如，其他的对称螺纹布局或者顶部螺距比底部螺距浅的布局。
将上部区域17的螺纹形成为使在上部区域中单位长度内的螺纹数目大于下部区域单位长度内的螺纹数目。例如，上部区域内的螺纹数目是下部区域内螺纹数目的两倍。在另一个实施例中，螺纹布置成倒锯齿形的结构。即，将螺纹布置成使得上部区域上端处的螺距大于上部区域下端处的螺距。申请人发现，25°/10°的螺距(即，上端处的螺距为25°，下端处的螺距为10°)是一种合适的螺距，但是，本领域技术人员可以认识到，其他的螺距同样也适用。螺纹17可以具有0.205-0.210英寸的大径和0.138-0.141英寸的小径，但是，本领域技术人员应该理解，其他可能的尺寸也是可行的。申请人发现，#12-18螺纹布局对于这一区域来说是合适的。
图3示出露台螺钉10的头部12的俯视图。该头部12在其内设置有用以容纳例如钻头或螺丝刀的工具的开口24，所述工具可将螺钉钻入木材。在图3和4所示实施例中，头部设置有#2方形插口24’，其开口成一个相对较深的空腔26，用以容纳工具。可以确信，螺钉相对较厚的杆上部区域可允许螺钉头具有相对较深的开口。并且，例如#2方形插口所占据的截面积大于菲利普头开口或平头开口。结果，和这种螺钉配合使用的工具的头部大于和菲利普头和平头结构配合使用的典型工具和钻头。例如#2方形钻头的较大钻头或螺丝刀经证实更为耐用，因此，对于安装者来说，安装工具的使用寿命比使用菲利普头工具或平头工具来完成这项工作时所用安装工具的使用寿命长。
图4示出本发明的螺钉头的剖视图。如图所示，头部12具有上表面28、下表面30和围绕头部的外周34的冠部32。冠部32延伸超过头部12的下表面30，在冠部的下边缘和螺钉杆之间形成凹陷区域。该凹陷区域是位于冠部32的外边缘和杆上部16之间的开放空间区域。
图5示出另一种螺钉尖端，其中，锥形远端区域具有17型的尖端，几圈螺纹被中断。
图7和8示出螺钉头部12的另一种实施例，其包括由周边唇部43围绕的V形圆周下切口42。下切口42中的圆锥面45将唇部43和头部12的圆锥形下侧33相连。圆锥面45以大约45°的角度远离唇部43向螺钉的轴线倾斜。
该螺钉可以由挤压坯料制成，例如图2所示的坯料。使用挤压的坯料允许如上所讨论地改变杆的上、下部分的直径。但是，本领域技术人员应该理解，挤压成型并不是形成制造坯料的唯一方法。
该螺钉可以由碳钢或者任何其他适用于制造木螺钉的材料形成。可以为螺钉镀覆锌镀层以及顶部镀覆一层和螺钉安装于其内的复合木材的颜色匹配的镀层。
在将螺钉10安装到复合木材中的过程中，位于螺钉10的上部区域16上的倒锯齿螺纹17可以使由螺钉下部区域置换的木材向下返回孔中。而且，如果有木材没有被倒锯齿螺纹向下返回到孔中，它们将被积陷在头部的凹陷中。据信这些特征中的一个或两个将会减小火山或蘑菇现象的产生，即便没能够完全将其消除。此外，螺钉头部紧密整齐地落座在表面上，从而得到可以接受的安装。
尽管参照复合木材说明了本发明，但应该认识到，本发明还可以应用到一般的紧固木制品的应用场合，并且，其原则可以延伸到其他建筑领域。
尽管处于示例的目的提出了本发明的一个实施例，但是上述说明并不认为是对本发明的限定。因此，本领域技术人员在不背离本发明的精神和范围的条件下可以对本发明做出各种改进、修改和替换。

Claims (13)

1、一种用以固定木制品的螺钉，包括：
杆部和头部，其中，头部形成有具有容纳工具的开口的上表面；
其中，所述杆部设置有位于头部附近的上部螺纹区域和位于螺钉远端附近的下部螺纹区域，该远端具有一尖端，上部区域内单位长度内的螺纹数目大于下部区域内单位长度内的螺纹数目。
2、如权利要求1所述的螺钉，其中，上部区域内单位长度的螺纹数目至少是下部区域内单位长度的螺纹数目的两倍。
3、如权利要求1所述的螺钉，其中，所述头部设置有下表面和冠部，所述冠部围绕头部的外周延伸并延伸过所述头部的下表面，从而在冠部的下边缘和螺钉杆之间限定出开放空间。
4、如权利要求1所述的螺钉，其中，所述头部设置有下表面和冠部，所述冠部围绕头部的外周延伸，其中，所述冠部延伸过所述头部的下表面，在冠部的下边缘和螺钉杆之间形成一个凹陷区域。
5、如权利要求1所示的螺钉，其中，所述头部设置有具有V形下切口的下表面。
6、如权利要求1所述的螺钉，其中，所述头部设置有具有V形下切口的下表面，该下切口具有位于其内的圆锥面，所述圆锥面将唇部和头部的圆锥形下侧连接在一起。
7、如权利要求6所述的螺钉，其中，所述圆锥面以大约45°的角度远离所述唇部向所述杆的轴线倾斜。
8、如权利要求1所述的螺钉，其中，所述下部区域的螺纹样式为对称的。
9、如权利要求1所述的螺钉，其中，上部区域内所述杆的截面积大于下部区域内所述杆的截面积。
10、如权利要求1所述的螺钉，其中，所述上部区域具有倒锯齿形的螺纹结构。
11、如权利要求1所述的螺钉，其中，所述尖端为具有大约20°到30°内角的有钻孔能力的尖端。
12、如权利要求1所述的螺钉，其中，所述头部和上表面形成有#2方形开口。
13、如权利要求1所述的螺钉，其中，所述杆具有位于上部螺纹区域和下部螺纹区域之间的无螺纹的部分。
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US20040071524A1 (en) * 2002-10-11 2004-04-15 Habermehl G. Lyle Fastener with stepped head for composite decking
US20040228705A1 (en) * 2003-05-16 2004-11-18 Abbott-Interfast Corporation. Fasteners for composite material

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103362220A (zh) * 2012-03-01 2013-10-23 阿特拉斯博尔特和斯克鲁有限责任公司 木紧固件
CN112601894A (zh) * 2018-07-17 2021-04-02 马克西姆·格罗让 紧固部件、组装方法和组装设备
CN111352331A (zh) * 2018-12-21 2020-06-30 伊塔瑞士钟表制造股份有限公司 包括支架、主夹板和紧固装置的组件、特别是用于时计的组件
US11674542B2 (en) 2018-12-21 2023-06-13 Eta Sa Manufacture Horlogere Suisse Assembly comprising a support, a plate and fastening means, in particular for a timepiece

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EP1461537A4 (en) 2005-04-06
US7367768B2 (en) 2008-05-06
DE60216511D1 (de) 2007-01-11
US7189045B2 (en) 2007-03-13
CA2457398C (en) 2010-12-14
TW541399B (en) 2003-07-11
US20070147974A1 (en) 2007-06-28
WO2003014578A3 (en) 2004-07-15
WO2003014578A2 (en) 2003-02-20
MXPA04001106A (es) 2005-02-17
DE60216511T2 (de) 2007-07-05
EP1461537B1 (en) 2006-11-29
CA2715673A1 (en) 2003-02-20
CA2715673C (en) 2015-07-07
US20030026675A1 (en) 2003-02-06
AU2002322998A1 (en) 2003-02-24
CN100510435C (zh) 2009-07-08
US6966737B2 (en) 2005-11-22
CA2457398A1 (en) 2003-02-20
ATE347048T1 (de) 2006-12-15
US20040197139A1 (en) 2004-10-07
EP1461537A2 (en) 2004-09-29

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