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41. 发明专利

JPH0249225B2 失效
公开(公告)号：JPH0249225B2
公开(公告)日：1990-10-29
申请号：JP6947282
申请日：1982-04-27
申请人： KYORAKU CO LTD
发明人： WASHIMI TAKEHIKO , HARADA MASAO , IWATANI YOSHIKAZU
IPC分类号： B29C49/04 , B29C55/00 , B29C65/02 , B32B1/08 , B32B3/20 , B32B27/30 , B32B27/40 , G05G1/00 , G05G25/04

42. 发明专利

JPH02221766A BELLOWS AND MANUFACTURING METAL MOLD DEVICE THEREOF 失效
公开(公告)号：JPH02221766A
公开(公告)日：1990-09-04
申请号：JP4256789
申请日：1989-02-22
申请人： KYORAKU CO LTD
发明人： HARADA MASAO
IPC分类号： F16J15/52 , B29C33/42 , B29K21/00 , B29L15/00 , B29L22/00 , F16J3/04
摘要： PURPOSE:To improve a working property without entailing any damage to sealability in a cylindrical mounting part by forming a cavity part on an outer circumferential surface of the cylindrical mounting part at one side edge of a bellows and a ring protuberance on the inner circumferential surface, respectively, while making up a ring recess groove in this cavity part. CONSTITUTION:Although a ring protuberance is formed on an inner circumferential surface of a cylindrical mounting part 3 of a bellows 1, a ring recess groove 5 is formed in a cavity part 4 of the mounting part 3 at a part corresponding to the ring protuberance, so that when the cylindrical mounting part 3 is inserted into an installing part 13 of the bellows 1, the ring recess groove 5 is widened from the outside, whereby the ring protuberance on the inner circumferential surface is absorbed to the side of the ring recess groove 5, and the inner circumferential surface of the cylindrical mounting part 3 is made into a smoothing surface, thus it can be smoothly inserted thereinto. After the insertion, when a flat belt 14 is rolled in the cavity part 4 and tightened, almost the whole surface of the cylindrical mounting part 3 is uniformly clamped, while the ring protuberance on the inner circumferential surface is extruded in direction being projected to the inside, so that high sealability to the bellows installing part 13 of the cylindrical mounting part 3 can be thus held.

43. 发明专利

JPH0292619A COUPLING STRUCTURE FOR PLASTIC MEMBER 失效
公开(公告)号：JPH0292619A
公开(公告)日：1990-04-03
申请号：JP24435988
申请日：1988-09-30
申请人： KYORAKU CO LTD
发明人： HARADA MASAO , MATSUBA AKIHIKO , ENOKIDA RYUICHI
IPC分类号： B29C65/02 , B29C65/72
摘要： PURPOSE:To rigidly couple a planar member to a protrusion member of different material by holding the planar member and the protrusion member inserted into the cavity of the planar member between a flange formed at the protrusion member and a retainer to be engaged with the protrusion member, and welding a step formed one side of the flange and the retainer thereto to be coupled. CONSTITUTION:A cavity 3 having a larger diameter than the outer diameter of a connecting tube 2 is provided at the position of a tube 1 to be coupled with the tube 2, and a flange 4 having a larger diameter than that of the cavity 3 is formed at the base end of the tube 2. The tubes 2 and a retainer 5 are made of the same material, the tube 2 is inserted from the inside of the tube 1 into the cavity 3, the retainer 5 is inserted from the outside of the tube 1 to the tube 2, and the step 6 thereof is coupled to the cavity 3 of the tube 1. A jig 7 is inserted into the inside of the tube 1, the lower side of the flange 4 is supported, the end of an ultrasonic tool horn 9 is brought into pressure contact with the upper side of the part formed with the step 6 of the retainer 5, ultrasonically heated to melt the end face of the step 6, and the flange 4 of the tube 2 is welded to the retainer 5.

44. 发明专利

JPS63168344A ELASTIC BAG BODY 失效
公开(公告)号：JPS63168344A
公开(公告)日：1988-07-12
申请号：JP31017286
申请日：1986-12-29
申请人： KYORAKU CO LTD
发明人： WASHIMI TAKEHIKO , HARADA MASAO
IPC分类号： B32B1/02 , B32B25/08

45. 发明专利

JPS6392431A MANUFACTURE OF MOLDING WITH SKIN 失效
公开(公告)号：JPS6392431A
公开(公告)日：1988-04-22
申请号：JP23976686
申请日：1986-10-08
申请人： KYORAKU CO LTD
发明人： WASHIMI TAKEHIKO , HARADA MASAO
IPC分类号： B29C49/04 , B29C49/24 , B29L22/00
摘要： PURPOSE:To manufacture a molding with a skin, the reproducibility of solid shape and external appearance characteristics of which are excellent, by a method wherein a specified non-woven cloth is arranged between a mold with a cavity surface and a parison made of thermoplastic in plasticized state so as to thermocompression-bond the parison to the non-woven cloth by inflating the parison in order to form a solid shape after the cavity surface of the mold and finally to cool and solidify the parison. CONSTITUTION:A plate- or recessed-shaped structural member with hollow double wall structure which is favorable from the aspects of strength and rigidity is obtained. Especially, in case of a structural member, over the whole one surface or the whole both surfaces of which a skin or skins are constituted, a non-woven cloth or cloths 7, the weight per area of which is 80-500g/m and the tensile strength of which is 10kg/cm or more, are arranged between molds 1 and 2 having cavity surfaces, which constitute the desired solid shape, and a parison 3 made of plastic under plasticized state. The parison and the non-woven cloths are integrally fixed under pressure by being pinched between pinch-off ridges positioned at the outer peripheral edges of the cavities of the molds. After that, the parison and the non-woven cloths are fixed under pressure by inflating the parison between the molds so as to form solid shapes corresponding to the cavity surfaces. After the parison is cooled and solidified itself, the flash part containing the non-woven cloths of a molded item is removed along a parting line.

46. 发明专利

JPS60157565A DUST BOOT FOR VEHICLE 失效
公开(公告)号：JPS60157565A
公开(公告)日：1985-08-17
申请号：JP1408384
申请日：1984-01-28
申请人： KYORAKU CO LTD
发明人： HARADA MASAO
IPC分类号： F16J3/04
摘要： PURPOSE:To improve the durability against external force by setting ridges and valleys that form bellows structure provided in a dust boot for vehicle and the spacing of the two into a certain relationship, and by setting the modulus of restitution elasticity of the dust boot to a certain value. CONSTITUTION:A dust boot 1 for vehicle comprises a bellows section 2 having a nearly circular section and nearly cylindrical retainer ends 3 which are connected to each end of the bellows. The retainer ends are fixedly attached to a cylinder rod 11 and an outer tube 12 respectively. The bellows 2 has outwardly projecting ridges 6 and inwardly cutting valleys 6 which are alternating. In this instance, where the spacing between valleys 6 is designated to be P, outer diameter of the valley 6 A, and outer diameter of the ridge B, the relationship among them is set so as to satisfy the following equation. That is, 35 [P/(B-A)]

47. 发明专利

JPS5856843A ELASTIC HOLLOW SHAPE 失效
公开(公告)号：JPS5856843A
公开(公告)日：1983-04-04
申请号：JP15392981
申请日：1981-09-30
申请人： KYORAKU CO LTD
发明人： WASHIMI TAKEHIKO , HARADA MASAO , IWATANI YOSHIKAZU
IPC分类号： B29D23/00 , B29B11/10 , B29C49/00 , B29C49/04 , B29C49/22 , B29C65/00 , B29L24/00 , B32B1/08 , B32B25/08

48. 发明专利

JP2000006965A CONTAINER HAVING HANDLE 失效
公开(公告)号：JP2000006965A
公开(公告)日：2000-01-11
申请号：JP19659098
申请日：1998-06-26
申请人： KYORAKU CO LTD
发明人： ENDO HARUHIRO , HARADA MASAO
IPC分类号： B65D6/18 , B65D8/06 , B65D25/30
摘要： PROBLEM TO BE SOLVED: To provide a container having a handle wherein a hand can be hooked well on a handle recess and may not likely slip and the handle is excellent in its inherent function of carrying the container stably and safely. SOLUTION: A bottom wall and a side wall 2a surrounding its respective sides are of a hollow double wall structure. A handle recess 6 is formed on an outer wall 5 of a side wall 2a to provide a handle. A downward protrusion 9 is formed on an upper rim on an opening side of the handle recess 6. A reinforcing rib 11 is formed on a side of an inner wall 10 corresponding to an upper face 7 of the handle recess 6. A fusion-integrated region 12 with the outer wall 5 with the inner wall 10 recessed constituting the reinforcing rib 11 is proximate to the protrusion 9.

49. 发明专利

JPH06143457A MANUFACTURE OF COVER BOOT 失效
公开(公告)号：JPH06143457A
公开(公告)日：1994-05-24
申请号：JP22480692
申请日：1992-07-30
申请人： KYORAKU CO LTD
发明人： HARADA MASAO , EGAWA YUJI
IPC分类号： B29C49/02 , B29C49/04 , B29C49/48 , B29C49/62 , B29D99/00 , B29K21/00 , B29L31/30 , B29D31/00
摘要： PURPOSE:To provide a method for manufacturing a cover boot by which obtain a cover boot which seals the shaft of a coupling such as an isotacho joint efficiently. CONSTITUTION:The method for manufacturing a cover boot is to manufacture a cover boot 7 consisting of a large dia. fastening part 9 and a small dia fastening part 10 on both ends of a bellows part 8 using a thermally elastic elastomer blow molding technology. A parison 3 is arranged in a split die consisting of two halves 1, 1, and an inner dia. regulating piece 4 for relgulating the inner diameter of the small dia. fastening part 10 is introduced in the parison 3. When clamping the split die of two halves 1, 1, air trapped in an area between the inner peripheral surface of the small dia, fastening part 10 and the front of the inner dia. regulating piece, is discharged through an air bleeder hole 13 opened in the inner dia. regulating piece 4 to form the inner peripheral surface of the small dia. fastening part 10 smoothly.

50. 发明专利

JPH06137427A BOOT 失效
公开(公告)号：JPH06137427A
公开(公告)日：1994-05-17
申请号：JP35807091
申请日：1991-12-27
申请人： KYORAKU CO LTD
发明人： HARADA MASAO , EGAWA YUJI
IPC分类号： F16D3/84 , F16J3/04 , F16J15/52
摘要： PURPOSE:To improve a bending property and form holding property in a bellows part for forming a boot which covers a constant velocity joint for an automobile by interconnecting the tops of respective crests with straight lines and specifying the diameter of the minimum diameter crest, difference of diameters between adjacent crests and respective rates of the diameter differences between adjacent roots to shaft diameters respectively. CONSTITUTION:A boot 1 is formed of an elastic material having 100-1000kg/cm of tension elastic modulus. Both large and small diameter sticking parts 3, 4 respectively stuck to the outer ring and shaft of a constant speed joint are disposed on both ends of a bellows part 2. Then, the bellows part 2 has the tops of respective crests 8b-8g except for the first crest 8a interconnected with approximately straight lines (a). The diameter D1 of the minimum diameter crest 8g is set to about two times the shaft diameter. Further, the rate of diameter difference between respective adjacent crests 8d-8g to the shaft diameter is maximized between both third and fourth crest parts 8c-8d and set to at least 0.4. On the other hands, the rate of diameter difference between the respective adjacent roots 9a-9f to the shaft diameter is maximized between both second and third roots 9b, 9c and set to at least 0.5. Thus, the bellows does not make contact with the shaft of the constant velocity joint irrespective of the large bending even if the bellows is made compact as a whole.

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