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公开(公告)号：US07624884B2
公开(公告)日：2009-12-01
申请号：US11805529
申请日：2007-05-23
IPC分类号： B61G9/06
摘要： A railroad car draft gear including a housing having an open end with a friction clutch assembly arranged in operable combination therewith. An elongated elastomeric spring assembly is disposed within the housing for storing energy during axial compression of the draft gear. A spring seat is arranged within the housing between the spring assembly and an end portion of each friction member forming part of the friction clutch assembly. The spring seat defines a surface, arranged in direct contacting relation with an end of the spring assembly, and defines at least one surface incongruity for limiting radial expansion with the elastomeric spring at the end of the spring assembly arranged in direct contacting relation with the spring seat along at least two axes when an axial load is applied to the draft gear.
摘要翻译： 一种铁路车辆牵引齿轮，包括具有开口端的壳体，其具有与其可操作地组合布置的摩擦离合器组件。 细长的弹性弹簧组件设置在壳体内，用于在牵引齿轮的轴向压缩期间储存能量。 在弹簧组件和构成摩擦离合器组件的一部分的每个摩擦构件的端部之间的壳体内布置弹簧座。 弹簧座限定了与弹簧组件的端部直接接触的表面，并且限定了至少一个表面不协调，以限制径向膨胀，弹簧组件的端部处的弹性体弹簧布置为与弹簧直接接触 当向牵引齿轮施加轴向载荷时，座椅至少沿两个轴线。
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公开(公告)号：US4960215A
公开(公告)日：1990-10-02
申请号：US288663
申请日：1988-12-22
申请人： Richard A. Carlstedt
发明人： Richard A. Carlstedt
摘要： The draft gear includes: friction elements; coil spring elements; and elastomer elements. With respect to the friction elements, three groups of friction surfaces are defined each of which create a specific angle with respect to a centerline passing down the center of the draft gear. The elastomer elements are interconnected multiple segmented columns having specific heights and occupying particular volumes with respect to the coil spring elements. Particular hardness and number of segments of the elastomer elements are also defined.
摘要翻译： 牵引装置包括：摩擦元件; 螺旋弹簧元件; 和弹性体元件。 相对于摩擦元件，限定了三组摩擦表面，每组摩擦表面相对于通往起落架中心的中心线产生特定的角度。 弹性体元件是具有特定高度的相互连接的多个分段的柱并相对于螺旋弹簧元件占据特定的体积。 还定义了弹性体元件的特定硬度和段数。
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3.发明申请Railcar draft gear spring assembly and method of making an elastomeric spring unit 有权轨道牵引齿轮弹簧组件和制造弹性体弹簧单元的方法公开(公告)号：US20120118847A1
公开(公告)日：2012-05-17
申请号：US12927593
申请日：2010-11-17
申请人： Richard A. Carlstedt
发明人： Richard A. Carlstedt
CPC分类号： B61G9/06 , B61G11/08 , F16F1/40 , Y10T29/49863
摘要： A railcar draft gear spring assembly including an axial stack of spring units. Each spring unit is formed from a non-circular elastomeric preform having a series of spaced corners with recessed sides extending between the corners. The preform includes a lobe formed at each corner for channeling the flow of elastomer when the preform is compressed between a pair of non-circular metal plates. Each plate has an outer profile and a series of grippers extending in a common direction away from one surface of the plate. The grippers are arranged in a predetermined pattern relative to each other and relative to the preform for initially positioning the non-circular preformed block of copolyester elastomer relative to the plates and for thereafter restricting the flow of elastomer relative to the outer profile of the plates.
摘要翻译： 一种包括弹簧单元的轴向堆叠的轨道牵引齿轮弹簧组件。 每个弹簧单元由具有一系列间隔角的非圆形弹性体预成型件形成，其中凹面在角部之间延伸。 预成型件包括在每个拐角处形成的凸角，用于在将预制件压缩在一对非圆形金属板之间时引导弹性体流动。 每个板具有外部轮廓和一系列沿同一方向延伸离开板的一个表面的夹持器。 夹具以相对于彼此和相对于预成型体的预定图案布置，用于相对于板初始定位非圆形共聚聚酯弹性体块，并且此后限制弹性体相对于板的外部轮廓的流动。
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公开(公告)号：US06478173B2
公开(公告)日：2002-11-12
申请号：US09782114
申请日：2001-02-13
申请人： Richard A. Carlstedt
发明人： Richard A. Carlstedt
IPC分类号： B61G918
摘要： A friction/elastomeric pad draft gear to cushion and absorb impacting forces on a railroad car coupler system. The friction/elastomeric pad draft gear includes a housing with a closed end and an open opposite end with a major axis extending therebetween. The open opposite end is provided with inwardly tapered extended internal friction surfaces. A wedge is mounted for axial movement in the open end of said housing and friction devices are positioned within the housing between the wedge and the extended internal friction surfaces. A spring seat is positioned adjacent the friction devices and on top of the elastomeric pad stack. The friction devices engagement with the wedge: forms a first selected angle of about 35 degrees ±3 degrees; forms a second selected angle of about 2.25 degrees, ± about 0.25 degrees, with the extended tapered internal friction surface; and forms a third selected angle of about 90 degrees, ±4 degrees, with the spring seat, all in respect to the major axis.
摘要翻译： 一种用于缓冲和吸收铁路车辆耦合器系统上的冲击力的摩擦/弹性垫片牵伸齿轮。 摩擦/弹性垫片牵伸齿轮包括具有封闭端的壳体和具有在其间延伸的长轴的敞开的相对端。 敞开的相对端设置有向内锥形的内部摩擦表面。 安装楔形件用于在所述壳体的开口端中轴向移动，并且摩擦装置定位在壳体内的楔形件和延伸的内部摩擦表面之间。 弹簧座位于摩擦装置附近并且位于弹性垫堆叠的顶部。 与楔形物接合的摩擦装置形成约35度±3度的第一选定角度; 与延伸的锥形内摩擦表面形成约2.25度，±约0.25度的第二选定角度; 并且与弹簧座形成约90度±4度的第三选定角度，全部相对于长轴。
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公开(公告)号：US5351844A
公开(公告)日：1994-10-04
申请号：US69328
申请日：1993-06-01
申请人： Richard A. Carlstedt
发明人： Richard A. Carlstedt
CPC分类号： B61G11/08 , B29C65/60 , B29C66/71 , B29C66/8322 , B61G9/06 , F16F1/36 , B29K2021/00 , B29L2031/721 , F16F2228/00 , F16F2230/0047
摘要： A compression spring formed of an elastomer having a ratio of plastic strain to elastic strain that is greater than 1.5 to 1, the elastomer having a having a projection extending through a metal plate and being cold formed into a rivet-like head to define a mechanical bond between the elastomer and the metal plate.
摘要翻译： 由弹性体形成的压缩弹簧，弹性体的塑性应变与弹性应变的比率大于1.5比1，弹性体具有延伸穿过金属板的突起，并被冷成型为铆钉状的头部，以限定机械 弹性体和金属板之间的接合。
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公开(公告)号：US06488162B1
公开(公告)日：2002-12-03
申请号：US09910506
申请日：2001-07-19
申请人： Richard A. Carlstedt
发明人： Richard A. Carlstedt
IPC分类号： B61G900
摘要： A draft gear which has a wedge, two friction shoes, two tapered wear liners, a spring seat and a spring package. The wedge has surfaces which cooperate with surfaces on each of the friction shoes forming a first selected angle of about 40 degrees to the major axis of the draft gear housing. A second group of surfaces on the friction shoes cooperate with surfaces on the tapered wear liners to create a second selected angle of about 5 degrees with respect to the major axis of the draft gear. A third group of surfaces on the friction shoes cooperate with surfaces on the spring seat to form a third selected angle of about 65 degrees with respect to the major axis of the draft gear.
摘要翻译： 一个牵引齿轮具有楔形，两个摩擦鞋，两个锥形磨损衬垫，一个弹簧座和一个弹簧包装。 楔形物具有与每个摩擦鞋上的表面配合的表面，其与牵引齿轮壳体的长轴形成约40度的第一选定角度。 摩擦鞋上的第二组表面与锥形磨损衬垫上的表面配合，以相对于牵伸齿轮的长轴产生约5度的第二选定角度。 摩擦鞋上的第三组表面与弹簧座上的表面相配合，以相对于牵伸齿轮的长轴形成约65度的第三选定角度。
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公开(公告)号：US08196912B2
公开(公告)日：2012-06-12
申请号：US12460538
申请日：2009-07-21
IPC分类号： F16F1/40
CPC分类号： B61G9/06 , B61G11/08 , F16F1/3732 , F16F1/44
摘要： A cold formed railcar spring including a spring pad formed from a perform of thermoplastic polyester elastomer having a durometer hardness ranging between about 40 and about 45 on the Shore D scale and sandwiched between a pair of metal plates. Each metal plate has a generally centralized bore extending therethrough and includes a plurality of radially spaced mechanical fasteners formed as an integral part of each plate. Each fastener has first and second generally parallel surfaces and a barb extending from a side of the fastener such that, upon axial compression of the preform, the fastener is pressed axially inward of one end of the perform such that the barb on the fastener mechanically interlocks with the spring pad whereby securing the plate to the spring pad.
摘要翻译： 一种冷成型的轨道式弹簧，包括弹簧垫，弹簧垫由热塑性聚酯弹性体的性能形成，其硬度计硬度在肖氏D标度上在约40和约45之间，夹在一对金属板之间。 每个金属板具有延伸穿过其中的大致集中的孔，并且包括形成为每个板的整体部分的多个径向隔开的机械紧固件。 每个紧固件具有第一和第二大致平行的表面以及从紧固件侧面延伸的倒钩，使得在预成型件的轴向压缩时，紧固件被按压在执行件的一端的轴向内侧，使得紧固件上的倒钩机械地互锁 弹簧垫，从而将板固定到弹簧垫。
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公开(公告)号：US20100059470A1
公开(公告)日：2010-03-11
申请号：US12460538
申请日：2009-07-21
IPC分类号： B61G11/00
CPC分类号： B61G9/06 , B61G11/08 , F16F1/3732 , F16F1/44
摘要： A cold formed railcar spring including a spring pad formed from a preform of thermoplastic polyester elastomer having a durometer hardness ranging between about 40 and about 45 on the D Shore scale and sandwiched between a pair of metal plates. Each metal plate has a generally centralized bore extending therethrough and includes a plurality of radially spaced mechanical fasteners formed as an integral part of each plate. Each fastener has first and second generally parallel surfaces and a barb along a length thereof such that, upon axial compression of the preform, the fastener is pressed axially inward of one end of the preform such that the barb on the fastener mechanically interlocks with the spring pad whereby securing the plate to the spring pad.
摘要翻译： 一种冷成型的轨道式弹簧，包括由热塑性聚酯弹性体的预制件形成的弹簧垫，硬度计硬度在D Shore刻度上在约40和约45之间，夹在一对金属板之间。 每个金属板具有延伸穿过其中的大致集中的孔，并且包括形成为每个板的整体部分的多个径向隔开的机械紧固件。 每个紧固件具有第一和第二大致平行的表面和沿其长度的倒钩，使得在预成型件的轴向压缩时，紧固件被按压在预成型件的一端的轴向内侧，使得紧固件上的倒钩与弹簧 垫，从而将板固定到弹簧垫。
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公开(公告)号：US5065874A
公开(公告)日：1991-11-19
申请号：US600876
申请日：1990-10-22
IPC分类号： B61G9/20
CPC分类号： B61G9/20
摘要： A fragmentable insert for maintaining a railroad draft gear in a shortened state to facilitate assembly in the pocket of a railroad car. The insert is a generally rectangular structure having at least one set of opposing faces bisected by a pair of grooved notches. The two sets of grooved notches are generally perpendicular to each other. A bore extends through the body of the insert between the opposing faces which are bisected by the grooved notches. The bore is configured to reduce the thickness of the material between its wall surface and the surfaces of the other pairs of opposing faces not intersected by the bore.
摘要翻译： 一种可拆卸的插入件，用于将铁路牵伸装置保持在缩短的状态，以便于组装在铁路车厢的口袋中。 插入件是具有至少一组相对的面的大致矩形的结构，所述至少一组相对面被一对带槽的凹口平分。 两组槽形凹口通常彼此垂直。 孔在插入物的主体之间延伸穿过凹槽的两个相对的面之间。 孔被构造成减小材料在其壁表面和不与孔相交的另一对相对面的表面之间的厚度。
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公开(公告)号：US4735328A
公开(公告)日：1988-04-05
申请号：US941661
申请日：1986-12-15
申请人： Richard A. Carlstedt
发明人： Richard A. Carlstedt
CPC分类号： B61G9/10
摘要： The draft gear includes a single center friction plate and a pair of spaced apart friction wedges. Six major friction surfaces are defined, four of which are engaged upon contact with the follower, the other two being engaged after about one-half inch of travel. Three major groups of angles are defined, a first being between the friction wedges and the shoes, a second between the friction wedges and the release wedge and a third between the shoes and the spring seat. These groups of angles cooperate to insure that the draft gear will release upon removal of external force.
摘要翻译： 牵引齿轮包括单个中心摩擦板和一对间隔开的摩擦楔。 定义了六个主要摩擦表面，其中四个摩擦表面与跟随器接触时其中四个摩擦表面接合，另外两个摩擦表面在大约半英寸行程之后被接合。 三个主要的角度组被定义，第一个是在摩擦楔和鞋之间，第二是摩擦楔与释放楔之间，第二是在鞋和弹簧座之间。 这些角度组合以确保在拔除外力时起草装置将释放。
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