New! View global litigation for patent families

CN105545909A - Core bar self-locking type blind rivet - Google Patents

Core bar self-locking type blind rivet Download PDF

Info

Publication number
CN105545909A
CN105545909A CN 201610093542 CN201610093542A CN105545909A CN 105545909 A CN105545909 A CN 105545909A CN 201610093542 CN201610093542 CN 201610093542 CN 201610093542 A CN201610093542 A CN 201610093542A CN 105545909 A CN105545909 A CN 105545909A
Authority
CN
Grant status
Application
Patent type
Prior art keywords
bar
part
rivet
core
type
Prior art date
Application number
CN 201610093542
Other languages
Chinese (zh)
Inventor
郗建豪
张晓斌
贾晓娇
樊金桃
张晓玲
郭双双
Original Assignee
航天精工股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS, WEDGES, JOINTS OR JOINTING
    • F16B19/00Bolts without screw-thread; Pins, including deformable elements; Rivets
    • F16B19/04Rivets; Spigots or the like fastened by riveting
    • F16B19/08Hollow rivets; Multi-part rivets
    • F16B19/10Hollow rivets; Multi-part rivets fastened by expanding mechanically
    • F16B19/1027Multi-part rivets

Abstract

The invention initiatively provides a core bar self-locking type blind rivet. The core bar self-locking type blind rivet comprises a core bar and a rivet sleeve, wherein the core bar is divided into a bar part and a riveting part by a breaking slot, the bar part is sleeved with the rivet sleeve, the outer diameter of the portion, from the end part to the inside, of the riveting part or the outer diameter of the whole riveting part is larger than the inner diameter of the rivet sleeve, and a hollow groove extends inwards from the center of the end part of the riveting part. The core bar self-locking type blind rivet has high integration degree, doesn't require a lock ring and can be locked only through the structure of the core bar.

Description

一种芯杆自锁紧型抽芯铆钉 A core for a self-locking lever type blind rivets

技术领域 FIELD

[0001]本发明创造属于紧固件设计和制造技术领域,尤其涉及芯杆自锁紧型抽芯铆钉。 [0001] The present invention belongs to the creation of the fastener design and manufacturing technology, and more particularly relates to a self-locking stem type blind rivet.

背景技术 Background technique

[0002]抽芯铆钉是一种可以进行单面安装的紧固件,广泛应用于航空航天器的连接中。 [0002] The blind rivet fastener can be a single-sided installation, it is widely used in aerospace connection. 抽芯铆钉的应用可以改善飞行器的内部结构设计,不用为安装预留过多的工艺空间;抽芯铆钉安装简单快捷,有专用的铆枪,安装过程中噪声和震动都大大的降低了。 Application of blind rivets can improve the interior design of the aircraft, not reserved for the installation process too much space; rivets simple and quick installation, a dedicated riveting gun, the installation process noise and vibration are greatly reduced. 抽芯铆钉可用于金属材料连接,也有专门设计应用于复合材料连接的抽芯铆钉,可承受较大的抗拉和抗剪力,抽芯铆钉广泛的用于单面安装、维修等场合。 Rivets connecting metal material can be used, there is especially designed for blind rivets composite connection, can withstand greater tensile and shear forces, rivets widely used single-sided installation, maintenance and other occasions. 一般的航空航天用抽芯铆钉由芯杆、钉套和锁环等附件零件组成,安装铆接后,通过锁环等零件进行机械锁紧。 General Aerospace of stem blind rivets, staples and other accessories sleeve and the lock ring parts, after riveting installation, for mechanical locking by the lock ring parts. 但是这些抽芯铆钉在安装时,锁环有安装失败的风险;当此类抽芯铆钉用于高振动区域或安装使用时间较久时,锁环有脱落的风险。 However, these rivets during installation, the lock ring mounting risk of failure; the blind rivet when such a high vibration area or installation time longer, there is the risk of falling off the lock ring. 如飞机发动机进气口就禁止应用带锁环的抽芯铆钉。 The aircraft engine air intake prohibition of interlocking rivets ring.

发明内容 SUMMARY

[0003]本发明创造为解决现有技术中的问题,提供了一种芯杆自锁紧型抽芯铆钉,结构一体化程度高,无需通过锁环,仅通过芯杆自身结构即可进行锁紧。 [0003] The present invention is created to solve the problems of the prior art, there is provided a self-locking stem type blind rivet, a high degree of integration structure without passing through the lock ring, the lock only by its structure to the stem tight.

[0004]本发明创造提供的一种芯杆自锁紧型抽芯铆钉,包括芯杆和钉套;所述芯杆由断颈槽分为杆部和铆接部两部分,杆部上套装有所述钉套,所述铆接部的自端部向内的部分或全部外径大于所述钉套的内径,所述铆接部自端部中央向内延伸有空心槽。 [0004] The present invention provides a core rod to create a self-locking type blind rivet comprising a mandrel and a sleeve nail; the stem by a cervical rod groove portion divided into two parts and the caulking portion, the stem portion sleeved the staple sleeve, part or all of the outer diameter of the inwardly from the end portion of the caulking portion is larger than the inner diameter of the sleeve of the staple, the central portion from the end portion of the caulking inwardly extending hollow grooves.

[0005]其中,所述空心槽所在的铆接部尾段部分的外径略大于所述钉套的内径;未延伸有所述空心槽的铆接部头段部分的外径与所述钉套的内径基本相同,所述铆接部的尾段部分与头段部分之间设有过渡斜面。 [0005] wherein the outer diameter of the caulking portion of the tail section of the hollow portion is slightly larger than the inner diameter of the groove where the staple sleeve; unextended outer diameter portion of said caulking part head section with a hollow groove of the staple sleeve an inner diameter substantially the same, with the transition between the bevel portion of the tail section of the caulking portion and the header portion.

[0006]其中,所述钉套尾端内侧还设有导入斜面。 [0006] wherein the trailing end of the inner sleeve also has a staple insertion bevels.

[0007]其中,所述钉套头部为圆台状的支撑结构。 [0007] wherein said nail head support structure for the sleeve frustoconical. 进一步,所述支撑结构的端面上向内开设有台阶。 Further, an end face of the support structure defines a stepped inwardly.

[0008]其中,本发明创造的铆钉还包括铆接垫片,套装于所述芯杆上并位于所述钉套的支撑结构一侧,所述铆接垫片上向所述支撑结构一侧凸出延伸有一凸台,所述凸台的外径与所述钉套的台阶的大径向匹配,优选的等于或略大于所述钉套的台阶的大径。 [0008] wherein the creation of the present invention further comprises riveting the rivet pad, set to the core rod and the supporting structure of one side of the staple cover, the caulking washer protrudes toward the side of the supporting structure a projection extending outer diameter of the boss and the large nail sleeve radially matching step, preferably equal to or slightly larger than the large diameter of the sleeve staple step.

[0009]其中,所述芯杆的杆部的端部设有夹持结构。 [0009] wherein the end portion of the rod portion of the core rod is provided with a holding structure.

[0010]本发明创造的芯杆自锁紧型抽芯铆钉,结构一体化程度高,分件少,无需依靠附加的零件(如锁环)进行锁紧,避免了因锁环存在带来的安装失败或脱落的风险,仅通过芯杆自身结构即可进行锁紧,提高了抽芯铆钉的可靠性。 [0010] The present invention is to create self-locking stem type blind rivet, a high degree of integrated structure, less sub-element, without relying on additional locking parts (such as lock ring) to avoid the presence of the lock ring due to bring the risk of failure or loss of the installation, the stem itself only by the locking structure can be carried out to improve the reliability of the blind rivet.

附图说明 BRIEF DESCRIPTION

[0011]图1是本发明创造一种实施方式的整体结构示意图; [0011] FIG. 1 is an overall schematic structural diagram of an embodiment of the present inventions;

[0012]图2是本发明创造芯杆的结构示意图; [0012] FIG. 2 is a schematic view of the core rod of the present inventions;

[0013]图3是本发明创造钉套的结构示意图; [0013] FIG. 3 is a schematic view of the sleeve of the present invention to create a staple;

[0014]图4是本发明创造铆接砧片的结构示意图; [0014] FIG. 4 is a schematic view of the sheet to create the caulking of the anvil of the present invention;

[0015]图5是本发明创造安装后的结构示意图; [0015] FIG. 5 is a schematic view of the installation structure after creation of the present invention;

[0016]图6是图5中画圈部分(锁紧结构)的局部放大图。 [0016] FIG. 6 is a (locked configuration) FIG. 5 is a partially enlarged circled portion of FIG.

[0017]其中,1-芯杆;11-断颈槽;12-杆部;121-夹持结构;13-铆接部;131-尾段部分;132-头段部分;133-过渡斜面;14-空心槽;2-钉套;21-导入斜面;22-支撑结构;23-台阶;3-铆接垫片;31-凸台。 [0017] wherein, l core rod; 11- cervical groove; 12- shank; 121- gripping structure; 13- caulking portion; 131- tail section portion; 132- header portion; 133- transition ramp; 14 - a hollow groove; 2- nail sets; insertion bevel 21; 22- support structure; 23- step; 3- riveting gasket; 31- boss.

具体实施方式 detailed description

[0018]下面通过结合附图对本发明创造进行进一步说明。 [0018] Next create DRAWINGS The present invention will be further described.

[0019]本发明创造结构一种实施方案如图1-4所示,包括芯杆I和钉套2;所述芯杆I由断颈槽11分为杆部12和铆接部13两部分,杆部12上套装有所述钉套2,所述铆接部13的自端部向内的部分或全部外径大于所述钉套2的内径,所述铆接部13自端部中央向内延伸有空心槽14。 [0019] structures to create one embodiment of the present invention shown in Figure 1-4, the core rod comprising I 2 and the staple sleeve; the core rod 13 is divided into two parts I shank portion 12 and caulking groove 11 by the broken neck, 12. set the staple sleeve shaft portion 2, from the end portion 13 of the inward portion or all of the caulking portions is larger than the outer diameter of the inner diameter of the sleeve 2 of the staple, the central portion of the caulking portion 13 extends inwardly from the end hollow groove 14.

[0020]其中,所述铆接部13自端部向内的所述空心槽14及外径的设置使安装过程中,铆接部13进入钉套2内时变细,同时钉套2膨胀,从而空心槽14所在的铆接部13的端部易于发生变形而形成盲铆头结构,实现抽芯铆钉的自锁紧作用。 [0020] wherein the hollow portion of the caulking groove 13 from the end portion 14 and inwardly disposed outer diameter of the mounting process, the caulking portion 13 enters the staple tapered sleeve 2 when the sleeve 2 while the nail expands, caulking an end portion of the hollow portion 13 where the groove 14 easily deformed rivet to form a blind head structure, to achieve self-locking action of the blind rivet. 为了进一步方便自锁紧作用的实现,优选的,使所述空心槽14所在的铆接部13尾段部分131的外径略大于所述钉套2的内径;未延伸有所述空心槽14的铆接部13头段部分132的外径与所述钉套2的内径基本相同,所述铆接部13的尾段部分131与头段部分132之间设有过渡斜面133。 To further facilitate the achievement of self-locking action, it is preferable that the hollow portion of the caulking groove 1413 located portion 131 is slightly larger than the outer diameter of the tail section of the inner diameter of the sleeve 2 of the staple; does not have the hollow extending groove 14 outer diameter portion 132 of the segment 13 and the inner diameter of the caulked portion 2 is substantially the same as the staple sheath, the inclined surface 133 is provided with a transition between the header portion 131 and the portion of the tail section 132 of the caulking portion 13.

[0021]其中,为了进一步方便所述铆接部13在安装过程进入钉套2,减小进入阻力,在所述钉套2尾端内侧还设有导入斜面21。 [0021] wherein, in order to further facilitate the caulking portion 13 into the sleeve during the installation of the nail 2, is reduced into the resistance, the trailing end of the staple sleeve 2 is also provided with insertion bevels 21 inside.

[0022]其中,所述钉套2头部为圆台状的支撑结构22,用于承载被连接基体和铆钉的作用力。 [0022] wherein the staple head sleeve 2 frustoconical support structure 22, for carrying force is connected to the base body and rivets. 进一步,所述支撑结构22的端面上向内开设有台阶23,当芯杆I的铆接部13安装并拉入钉套2完成后,铆接部13靠近断颈槽11的端部会在承载压力的作用下发生变形,并与所述钉套2的台阶23卡合,形成一个锁紧结构,使芯杆I不会脱落。 Further the end face of the support structure 22 defines an inward step 23, when the caulking portion of the core rod 13 is mounted and I pulled into the sleeve 2 after the staple is completed, the caulking portion 13 close to the end portion 11 will be broken neck in the groove of the bearing pressure deformed under the action, and the staple sleeve 23 engages the step 2, a locking structure is formed, so I will not fall off the core rod.

[0023]其中,本发明创造的铆钉还包括铆接垫片3,套装于所述芯杆I上并位于所述钉套2的支撑结构22—侧,所述铆接垫片3上向所述支撑结构22—侧凸出延伸有一凸台31,所述凸台31的外径与所述钉套2的台阶23的大径向匹配,优选的等于或略大于所述钉套2的台阶23的大径。 [0023] wherein the creation of the present invention further comprises riveting the rivet washer 3, I set to the stem and located on the side of the staple 22- sleeve support structure 2, the caulking washer 3 to the support 22- convex structure extending in a boss 31, the outer diameter of the boss 31 and the large stepped radially staple sleeve 232 is matched, preferably equal to or slightly greater than the staple sleeve 232 is stepped large diameter. 铆接垫片3及其凸台31的设置,使芯杆I的铆接部13安装并拉入钉套2完成后,在铆接部13靠近断颈槽11的端部更易受到铆接垫片3的凸台31传递的力,从而更易发生变形并形成锁紧结构,完成卡合并锁紧。 3 and riveting gasket disposed boss 31, the core caulking portion 13 of the rod I is installed and pulled into the sleeve 2 after the staple is completed, the caulking portion 13 close to the cervical end portion of the groove 11 is more susceptible to the riveting gasket projections 3 force transfer station 31, and thus more likely to deform locking structure is formed, is engaged with the locking completion.

[0024]其中,所述芯杆I的杆部12的端部设有夹持结构121,如对称设置的向内加工的凹平面,便于安装工具(如拉铆枪)对芯杆I的夹持固定。 [0024] wherein said stem end portion 12 of the rod I is provided with an inwardly concave machining plane holding structure 121, such as symmetrically arranged, to facilitate installation tool (e.g. Riveter) of the stem clamp I holding fixed.

[0025]本发明创造的简要工作过程为,将本发明创造的铆钉插入被连接基体的安装孔中,安装工具(如拉铆枪)夹持住芯杆I的夹持结构121,并对芯杆I进行拉拔,同时,安装工具的另一结构抵住铆接垫片3,并作用于钉套2的头部。 [0025] Brief operation of the present inventions is, the present invention is to create a rivet into the mounting hole in the base body are connected, the installation tool (such as a riveter) clamped stem of the holding structure 121 I, and the core I bar by drawing, at the same time, another configuration of the installation tool against the riveting gasket 3, and acting on the sleeve head 2 of the nail. 如此,芯杆I的铆接部13逐渐拉入钉套2,在芯杆I铆接部13进入钉套2的同时,由于芯杆I铆接部13的尾段部分131比钉套2内径大,所以芯杆I铆接部13在拉入时会变细,同时钉套2会膨胀,在安装孔外形成一个盲铆头。 Thus, the core caulking portion 13 of the rod I is gradually pulled into the staple sleeve 2, while the stem portion 13 enters the staple I caulking sleeve 2, since the stem portion I caulking portion 13 of tail section 131 is larger than the inner diameter of the staple 2 sets, so I stem 13 is pulled in the caulking portion becomes thin, while the staple sleeve 2 will swell, forming a blind rivet holes in the outer mounting. 当芯杆I拉拔到位后,铆接砧片3的力会作用于芯杆I的铆接部13靠近断颈槽11的端部,使之变形,形成径向的凸起,并可卡在钉套2台阶23上,形成锁紧结构(图6)。 When the core rod into place after drawing I, the caulking force will act on the anvil plate 3 of the stem I caulking portion 13 close to the cervical end portion of the groove 11, so that deformation of the radial projection is formed, and the staple cards 2 steps sleeve 23, the locking structure is formed (FIG. 6). 当完成锁紧后,芯杆I会被从断颈槽11处拉断,完成铆接(图5)。 When the locking is completed, the stem is pulled off from I off at breakneck groove 11, caulking is completed (FIG. 5).

[0026]以上所述仅为本发明创造的较佳实施例而已,并不用以限制本发明创造,凡在本发明创造的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明创造的保护范围之内。 [0026] The above are only preferred embodiments of the present inventions example only, and not intended to limit the present invention to create any modifications within the spirit and principle of the present inventions, the, equivalent replacement, or improvement It is included within the scope of the present inventions.

Claims (7)

1.一种芯杆自锁紧型抽芯铆钉,包括芯杆和钉套;所述芯杆由断颈槽分为杆部和铆接部两部分,杆部上套装有所述钉套,所述铆接部的自端部向内的部分或全部外径大于所述钉套的内径,所述铆接部自端部中央向内延伸有空心槽。 A self-locking stem type blind rivet comprising a mandrel and a sleeve nail; the stem by a cervical rod groove portion divided into two parts and the caulking portion, the stem portion of the staple sleeved jacket, as part or all of the outer diameter of said inwardly from the end of the caulking portion is larger than the inner sleeve of the staple, the central portion of the caulking portion extending inwardly from the end of the hollow groove.
2.根据权利要求1所述的一种芯杆自锁紧型抽芯铆钉,其特征在于,所述空心槽所在的铆接部尾段部分的外径略大于所述钉套的内径;未延伸有所述空心槽的铆接部头段部分的外径与所述钉套的内径基本相同,所述铆接部的尾段部分与头段部分之间设有过渡斜面。 2. According to one core pin from the locking type blind rivet 1, characterized in that the outer diameter of the caulking portion of the tail section of the hollow portion is slightly larger than the inner diameter of the groove where the staple sleeve of claim 1; unextended section has an outer diameter portion of the caulking groove Butou hollow sleeve with an inner diameter substantially the same as the staple, with the transition between the bevel portion of the tail section of the caulking portion and the header portion.
3.根据权利要求1所述的一种芯杆自锁紧型抽芯铆钉,其特征在于,所述钉套尾端内侧还设有导入斜面。 3. According to a locking stem from the type of rivets claim 1, wherein the trailing end of the inner sleeve also has a staple insertion bevels.
4.根据权利要求1所述的一种芯杆自锁紧型抽芯铆钉,其特征在于,所述钉套头部为圆台状的支撑结构。 4. According to a locking stem from the type of rivets claim 1, wherein said nail head support structure for the sleeve frustoconical.
5.根据权利要求4所述的一种芯杆自锁紧型抽芯铆钉,其特征在于,所述支撑结构的端面上向内开设有台阶。 5. According to a self-locking type core pin of claim 4, wherein the blind rivet, characterized in that the end face of the support structure defines a stepped inwardly.
6.根据权利要求5所述的一种芯杆自锁紧型抽芯铆钉,其特征在于,本发明创造的铆钉还包括铆接垫片,套装于所述芯杆上并位于所述钉套的支撑结构一侧,所述铆接垫片上向所述支撑结构一侧凸出延伸有一凸台,所述凸台的外径与所述钉套的台阶的大径向匹配。 6. According to a self-locking stem type blind rivet according to claim 5, characterized in that the creation of the present invention further comprises riveting the rivet pad, set to the core rod and the staple sleeve positioned the support structure side, the upper side of the washer caulking projection extending toward the outer diameter of the support structure is a boss, the boss sleeve matches the staple large radial step.
7.根据权利要求1所述的一种芯杆自锁紧型抽芯铆钉,其特征在于,所述芯杆的杆部的端部设有夹持结构。 7. According to a self-locking type stem blind rivet according to claim 1, characterized in that the end of the stem portion of the mandrel-holding structure is provided.
CN 201610093542 2016-02-18 2016-02-18 Core bar self-locking type blind rivet CN105545909A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201610093542 CN105545909A (en) 2016-02-18 2016-02-18 Core bar self-locking type blind rivet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201610093542 CN105545909A (en) 2016-02-18 2016-02-18 Core bar self-locking type blind rivet

Publications (1)

Publication Number Publication Date
CN105545909A true true CN105545909A (en) 2016-05-04

Family

ID=55825343

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201610093542 CN105545909A (en) 2016-02-18 2016-02-18 Core bar self-locking type blind rivet

Country Status (1)

Country Link
CN (1) CN105545909A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106122215A (en) * 2016-09-14 2016-11-16 航天精工股份有限公司 Single-surface installation knocking rivet

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2120741A (en) * 1982-05-21 1983-12-07 Avdel Ltd Blind rivets
GB2124317B (en) * 1982-07-16 1985-08-14 George Siebol Blind rivet assembly
US4784551A (en) * 1985-05-24 1988-11-15 Huck Manufacturing Company Fastening system and method for flush and protruding head blind fasteners with common pin and particularly such fasteners constructed of exotic material
CN1320197A (en) * 1998-09-25 2001-10-31 米拉戴尔有限公司 Blind rivet and method of making the same
CN202646283U (en) * 2012-06-12 2013-01-02 吴洪学 Drum-shaped rivet
CN203285810U (en) * 2013-04-22 2013-11-13 刘晓之 Penetrating and cutting rivet

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2120741A (en) * 1982-05-21 1983-12-07 Avdel Ltd Blind rivets
GB2124317B (en) * 1982-07-16 1985-08-14 George Siebol Blind rivet assembly
US4784551A (en) * 1985-05-24 1988-11-15 Huck Manufacturing Company Fastening system and method for flush and protruding head blind fasteners with common pin and particularly such fasteners constructed of exotic material
CN1320197A (en) * 1998-09-25 2001-10-31 米拉戴尔有限公司 Blind rivet and method of making the same
CN202646283U (en) * 2012-06-12 2013-01-02 吴洪学 Drum-shaped rivet
CN203285810U (en) * 2013-04-22 2013-11-13 刘晓之 Penetrating and cutting rivet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106122215A (en) * 2016-09-14 2016-11-16 航天精工股份有限公司 Single-surface installation knocking rivet

Similar Documents

Publication Publication Date Title
US3426375A (en) Blind rivet with self-plugging mandrel
US3491649A (en) Rivets
US3277771A (en) Blind fastener with locking collar
US3371572A (en) Locking bolt and locking means therefor
US3107572A (en) Rivet with a serrated pin and an annular locking member
US3789728A (en) Blind fastener
US2713197A (en) Method and apparatus for making an integral rivet connection
US4967463A (en) Method of fastening panels using drive nut blind fasteners
US2501567A (en) Rivet
US5030050A (en) Blind riveting member, assembly process and assemblies obtained
US4579491A (en) Blind fastener assembly
US5651172A (en) Process for the assembly of materials and riveting member for carrying out the process
US3526032A (en) Riveting method employing metal flow in both the manufactured head and the upset head
US4988247A (en) Blind rivet and method of making same
US20060291974A1 (en) Nut insert
US5066179A (en) Blind fastener
US5947667A (en) Structural blind fastener
US5044850A (en) Self plugging blind rivet
US3302510A (en) Die-draw blind rivet with non-deforming die
US5689873A (en) Tacking fastener
US5620287A (en) Fastener system with controlled clamping load
US4364697A (en) Blind fastener assembly
US2538623A (en) Rivet assembly
US2887003A (en) Blind fastener having separate locking collar with shear flange
US3232162A (en) Blind locked spindle rivet and method for applying the same

Legal Events

Date Code Title Description
C06 Publication
C10 Entry into substantive examination