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US5989658A Expired / Lapsed US ⏱️ 0.0 years remaining

Joint assembly and a process for manufacturing the same and a movable body and process for manufacturing the same

Assignee: Bandai Co Ltd
•
Filing: 1997-04-22
•
Granted: 1999-11-23
•
Expires: 2017-04-22
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Abstract

Abstract To provide a rotatable joint assembly in which connection is made so as to enable a click motion, a process for manufacturing such a rotatable joint assembly by molding as a unitary structure, a movable body including such a rotatable joint assembly, and a process for manufacturing such a movable body by molding as a unitary structure. A movable body 360 is formed by molding from a first synthetic resin material A in a first molding step a trunk 303 having a shoulder joint portion 305 having an outer surface on which fine protrusions are defined sequently almost its entire periphery, and a lower arm 311 having an elbow joint portion 313 having an outer surface on which fine protrusions are defined sequently almost its entire periphery, by molding from a second synthetic resin material B in a second molding step an upper arm 321 having a shoulder enclosing portion 323 enclosing the shoulder joint portion 305 of the trunk 303 as molded by the first molding step and an elbow enclosing portion 325 enclosing the elbow joint portion 313 of the lower arm 311 so as to form a unitary structure, and by molding from a third synthetic resin material C in a third molding step a covering member 361 covering the trunk and lower arms 303 and 313 as molded by the first molding step and the upper arm 321 as molded by the second molding step so as to form a unitary structure.

Inventors

  • 👤 Kazunori Miura
  • 👤 Shoichi Inaba
  • 👤 Eijiro Yanagisawa

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 10:28
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/0017; A; A63; A63H; A63H3/00; A63H3/36; A63H3/46; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32008; Y10T403/32032; Y10T403/47; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/2457; Y10T428/24612

Claims Analysis

Total Claims: 12
Claim 1
Independent Claim 68 words
A joint assembly comprising: a first member including an integrally molded joint portion; a plurality of protrusions formed on an outer surface of said joint portion; and a second member including an integrally molded holding portion having an inner surface rotatably coupled with said plurality of protrusions formed on said outer surface of said joint portion, wherein said first member is movable with respect to said second member.
Claim 2
Dependent Claim 68 words
A joint assembly comprising: a first member including an integrally molded joint portion; a plurality of protrusions formed on an outer surface of said joint portion; and a second member including an integrally molded holding portion having an inner surface rotatably coupled with said plurality of protrusions formed on said outer surface of said joint portion, wherein said first member is movable with respect to said second member.
Claim 3
Dependent Claim 23 words
The joint assembly of claim 1 further comprising: a third member comprising an elastic material covering said first member and said second member.
Claim 4
Dependent Claim 75 words
A process for manufacturing a joint assembly comprising: molding from a first synthetic resin material a first member including an integrally molded joint portion, a plurality of protrusions being formed on an outer surface of said joint portion; and molding from a second synthetic resin material a second member including an integrally molded holding portion having an inner surface rotatably coupled with said plurality of protrusions formed on said outer surface of said joint portion.
Claim 5
Dependent Claim 75 words
A process for manufacturing a joint assembly comprising: molding from a first synthetic resin material a first member including an integrally molded joint portion, a plurality of protrusions being formed on an outer surface of said joint portion; and molding from a second synthetic resin material a second member including an integrally molded holding portion having an inner surface rotatably coupled with said plurality of protrusions formed on said outer surface of said joint portion.
Claim 6
Dependent Claim 26 words
The process of claim 3 further including the step of: molding from a third synthetic resin material a third member covering said first and second members.
Claim 7
Dependent Claim 27 words
The process of claim 3 wherein a melting point of said second synthetic resin material is lower than a melting point of said first synthetic resin material.
Claim 8
Dependent Claim 49 words
The process of claim 4 wherein a melting point of said third synthetic resin material is lower than a melting point of said second synthetic resin material, and said melting point of said second synthetic resin material is lower than a melting point of said first synthetic resin material.
Claim 9
Dependent Claim 12 words
A joint assembly manufactured in accordance with the process of claim 3.
Claim 10
Dependent Claim 12 words
A join assembly manufactured in accordance with the process of claim 4.
Claim 11
Dependent Claim 12 words
A joint assembly manufactured in accordance with the process of claim 5.
Claim 12
Dependent Claim 12 words
A joint assembly manufactured in accordance with the process of claim 6.

References Cited (Backward Citations)

JPS50113587A Cited
JPS5147397A Cited
US5098752A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2002-11-22 2003-05-24 2003-11-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2006-11-22 2007-05-24 2007-11-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2010-11-22 2011-05-24 2011-11-23 $7700.00 Window Closed / Lapsed

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