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公开(公告)号：JPH1190853A
公开(公告)日：1999-04-06
申请号：JP17249998
申请日：1998-06-19
Applicant: EMHART INC
Inventor： DEIITAA MAUERU , REINHORUTO OTSUPEE
Abstract: PROBLEM TO BE SOLVED: To improve workability by putting the tip of a pin on a male die end, heating a formed contact region with the energy fed through the pin, cooling it, retracting the pin in the opposite direction to the pressing pressure, and extracting a punch rivet from a workpiece. SOLUTION: A lug 20 at the tip of a pin 18 is coupled with the recess 21 of a male die end 15. The pin 18 is lifted for several msec to generate an arc, and both surfaces are fused and welded in a contact region 30. The pin 18 is lowered to the fused portion to cool it, and a strong junction is formed. A pad member 22 is mounted on the metal sheet 12 of a workpiece, then the pin 18 is pulled to remove a punch rivet 14 from the rivet junction. Metal sheets 12, 13 are not deformed at least in the region near the pad member 22 during this process. When the punch rivet 14 is completely removed, two metal sheets 12, 13 are separated from each other, and the punch rivet 14 is stuck to the pin 18.
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公开(公告)号：JPH1190575A
公开(公告)日：1999-04-06
申请号：JP20561798
申请日：1998-07-21
Applicant: EMHART INC
Inventor： DEIITAA MAUERU , HAAMAN REEZERU
Abstract: PROBLEM TO BE SOLVED: To provide the punch rivet joining device which reduces the production cost and monitors the forming of the punch rivet connection to improve the sureness in quality. SOLUTION: A plunger 4 and a lower holding device 5 are driven through a transmission unit 2. The transmission unit 2 converts the rotating motion of a driving unit 1 into the parallel motion of the plunger 4 or the lower holding device 5. An electric motor can be employed for the drive unit 1, and the relative excellent control can be achieved by converting the rotating motion of the driving unit 1 into the parallel motion of the plunger 4. The different plunger speed can be achieved by the process control.
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公开(公告)号：JPH10248977A
公开(公告)日：1998-09-22
申请号：JP10073397
申请日：1997-03-13
Applicant: EMHART INC
Inventor： KITCHENS JEFFREY E , MCINTOSH WILLIAM R
IPC: A63B53/12
Abstract: PROBLEM TO BE SOLVED: To make reaction as recognized by a golfer constant by taking the balance of one set of clubs to gain a harmonized stability between different inertial moment torsion of the individual clubs in the set. SOLUTION: A shaft 12 is made of steel. An intermediate section 22 thereof comprises a plurality of zones 22a-22n with the diameter thereof gradually decreasing toward the tip end 20 from a butt end 16. A bulge 24 is formed on the shaft 12 near the end of the internal side of the tip 20 thereof. Three cylindrical step faces 30, 32 and 34 are formed at one end of the central cylinder section 26 of the bulge 24 and three cylindrical step faces 36, 38 and 40 at the opposite end in the direction of the axis of the central cylinder section 26. The diameter of the central section 26 is larger than the diameter of a part immediately adjacent thereto of the shaft 12. The diameter of respective sets of three step faces at both ends of the central section 26, that is, the step faces 30, 32 and 34 at one end and the step faces 36, 38 and 40 at the other end become gradually larger than that of the parts adjacent thereto of the shaft but are smaller than the diameter of the central section 26 itself.
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公开(公告)号：JPH10166149A
公开(公告)日：1998-06-23
申请号：JP34010297
申请日：1997-12-10
Applicant: EMHART INC
Inventor： KURT LIEVICH , HANS WISSLER , INGEBURG HOEEMAN
Abstract: PROBLEM TO BE SOLVED: To provide a receptacle which enables parts to take a prescribed position surely and also reliably in a receiving chamber. SOLUTION: The receptacle is provided with a receiving body 1, in which a receiving chamber 2 is formed for accepting parts 15. A feed duct 3 for feeding the parts 15 to the receiving chamber 2 is formed in communication with the chamber 2. The chamber 2 is connected to a transporting duct, which extends nearly vertically to the feed duct 3. The receptacle is also provided with two block members 6, 7 which are arranged in the manner of opposing each other with the feed duct 3 in between inside a slot-shaped orifice 8, 9, allowing the passage of the parts 15 from the feed duct 3 to the receiving chamber 2, and preventing the passage in the opposite direction.
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115.发明专利
公开(公告)号：JPH09144728A
公开(公告)日：1997-06-03
申请号：JP9239196
申请日：1996-04-15
Applicant: EMHART INC
Inventor： RICHIYAADO JII UEEBAA , JIEFURII TEII BUREIKU , UIRIAMU II OKOONAA , CHIYAARUZU EFU SUMAATO
Abstract: PROBLEM TO BE SOLVED: To confirm the accuracy of fitting by measuring drawing force of a fitting tool and displacement of a drawing shaft, and obtaining the full energy of a fitting process, and comparing the obtained full energy with an ideal full energy. SOLUTION: A sensor provided in a tool 12 measures the drawing force of a drawing shaft 40 so as to obtain the serial force value, and measures the axial displacement of the drawing shaft 40 so as to obtain the serial displacement value. These values are read at the initial time, and the force versus displacement curve is formed. An integrator 86 utilizes the read value of the selected force versus displacement so as to compute the area of the force versus displacement curve, and integrates this curve so as to obtain the real value of the tool energy of the fitting process. The real energy value is compared with an ideal full energy in relation to the fitting of a rivet 14, which is obtained by an experiment, and quality of the responsiveness of the reference curve is showed so as to show the tolerance of rivet fitting. Accuracy of rivet fitting can be thereby perfectly and securely confirmed.
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Patent Agency Ranking
公开(公告)号：JPH08219129A
公开(公告)日：1996-08-27
申请号：JP32297095
申请日：1995-12-12
Applicant: EMHART INC
Inventor： DANIERU ROBIN SUMISU , DONARUDO UIRIAMU AAMUSUTORONGU
IPC: F16B19/10
Abstract: PROBLEM TO BE SOLVED: To heighten locking performance of a mandrel and to improve noise mubbing performance and removal of a broken piece by tapering the inner surface of one end of a sleeve, providing the mandrel with a head part and a breaking neck, and providing the head part with a reduced-diameter part. SOLUTION: One end 20 of a sleeve 21 has an inner surface taper 22, and one end 23 of a mandrel 24 is provided with an enlarged-diameter head 25 and a breaking neck part 26. A taper 27 is provided between the breaking neck part 26 and the enlarged-diameter head, and the diameter of the mandrel is decreased toward the enlarged-diameter head 25. During fitting, the mandrel head passes the rivet sleeve unitl workpiece parts are collected, and when the fitting load is increased, not being moved outward, the rivet material below the mandrel is moved inward to fill up a clearance gap below the mandrel head. Since the mandrel head part is tapred, the remaining part of the mandrel head is efficiently locked to form resistance to push out.
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公开(公告)号：JPH08200335A
公开(公告)日：1996-08-06
申请号：JP26262795
申请日：1995-10-11
Applicant: EMHART INC
Inventor： DANIERU ROBIN SUMISU
Abstract: PROBLEM TO BE SOLVED: To fix two workpieces removably by installing a rivet main body in a workpiece, arranging another workpiece on a washer, screwing a mandrel into the rivet main body and pushing the finger of the washer to an outer direction. SOLUTION: After assembling a washer 6 on a mandrel 8 between the head 16 of a rivet main body 14 and the head 10 of the mandrel 8 and installing the rivet main body 14 to a base plate 42, a workpiece 40 is arranged on the assembly 2. Then, when the mandrel 8 is screwed in the rivet main body 14, a finger 30 is pushed to the outside radially, as the head 10 being pushed toward the workpiece 40 and the workpiece 40 is fixed to a prescribed position. When the mandrel 8 is perfectly tightened, the finger 30 holds the workpiece 40 for the head 16 firmly. Thereby, the workpiece 40 can be installed to the base plate 42 removably and easily.
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公开(公告)号：JPH0861339A
公开(公告)日：1996-03-08
申请号：JP16855295
申请日：1995-07-04
Applicant: EMHART INC
Inventor： MAIKERU OZUBOON
IPC: F16B19/10
Abstract: PROBLEM TO BE SOLVED: To realize installation rich in durability by arranging a reduced rear end part in a rivet main body into which a mandrel is incorporated, and providing a collar part having the same diameter as the rear end part on the mandrel. SOLUTION: A blind rivet assembly 2 has a shank 6 having a bore 8 and a rivet main body 4 having a head 10, and this is installed on a mandrel 12 provided with a stem part 14 and an installing head 16 engaged with a rear end surface 18 of the rivet main body 4. In this case, a cylindrical wall 20 having an almost uniform thickness is formed on a shank 6, a head side end part of this cylindrical wall 20 is formed in a shank part 22 having a diameter d1 , and a rear end part of the wall 20 is formed in a rear end part 24 having a diameter d2 (
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公开(公告)号：JPH07217631A
公开(公告)日：1995-08-15
申请号：JP28197994
申请日：1994-11-16
Applicant: EMHART INC
Inventor： SUCHIIBUN JIYON MOORISU
Abstract: PURPOSE: To provide a blind fastener assembled in a hole of a work so that other fastener can be fitted. CONSTITUTION: A blind fastener is provided with a screw hole 14 so that the fastener can be incorporated in a work by an appropriate tool and a head part 6 having a male screw 8. In the case where the fastener is incorporated in the work, the fastener can be used in various method of fitting the work together.
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公开(公告)号：JPH07174122A
公开(公告)日：1995-07-11
申请号：JP21334894
申请日：1994-09-07
Applicant: EMHART INC
Inventor： DERUBAATO ERU AANORUDO , MAAKU EICHI DERUKOOTO
Abstract: PURPOSE: To provide an improved grounding stud/nut sub-assembly having no unnecessary parts. CONSTITUTION: An improved sub-assembly 28 of a grounding stud 30 and a nut 32, to be used for an automobile is provided. The unit is provided with a thick washer part 38 to facilitate attachment of the assembly of the nut and washer together onto a car body 10 of an automobile. The nut has a distorted, flattened, deformed screw thread to make it a locking nut to separate paint from the screw thread of the stud in a middle step of assembly, as well as to securely fix the final assembly in place. The stud is provided with a washer part 34 to separate a grounding contact wire 40 from the car body 10 by the suitable distance and to protect a collet of a weld gun from heat of welding.
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