← Back to Patent Explorer
EP0376593A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Plastic bumper

Assignee: Minoru Industrial Co Ltd
•
Filing: 1989-12-19
•
Granted: —
•
Expires: 2009-12-19
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A plastic bumper (1) for use in an automobile includes a front wall member (2) having a generally U-shape cross-­section, and a rear wall member (3) having a mid portion intermittently indented to form a plurality of pyramid frustum-shaped recesses (4). An outer end face of each pyramid frustum recess (4) is adhered to an inside face of said front wall member (2). Thus, the bumper (1) is reinforced with respect to vertical and horizontal impacts.

Inventors

  • 👤 Naoshige Fukuhara
  • 👤 Takaaki Tachibana
  • 👤 Kunio Hanafusa

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-04 22:40
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/42; B29C49/48; B29C49/4802; B60; B60R; B60R19/00; B60R19/02; B60R19/18; B29C2049/4805; B29C2049/4807; B29C49/4812; B29L; B29L2031/00; B29L2031/30; B29L2031/3044; B60R2019/1806; B60R2019/1833; B60R2019/184

Claims Analysis

Total Claims: 12
Claim 1
Independent Claim 62 words
A plastic bumper for use in an automobile compris­ing: a front wall member generally having a U-shape cross-section; and a rear wall member having a mid portion intermit­tently indented to form a plurality of recesses each having a shape of pyramid frustum, an outer end face of each pyramid frustum recess being adhered to an inside face of said front wall member.
Claim 2
Dependent Claim 62 words
A plastic bumper for use in an automobile compris­ing: a front wall member generally having a U-shape cross-section; and a rear wall member having a mid portion intermit­tently indented to form a plurality of recesses each having a shape of pyramid frustum, an outer end face of each pyramid frustum recess being adhered to an inside face of said front wall member.
Claim 3
Dependent Claim 24 words
A plastic bumper as claimed in Claim 1, wherein said front wall member and said rear wall member are formed integrally by blow molding.
Claim 4
Dependent Claim 24 words
A plastic bumper as claimed in Claim 1, further comprising a plate rib extending between outer side faces of the neighboring pyramid frustums recesses.
Claim 5
Dependent Claim 27 words
A plastic bumper as claimed in Claim 3, wherein said front wall member, said rear wall member and said plate ribs are formed integrally by blow molding.
Claim 6
Dependent Claim 46 words
A plastic bumper for use in an automobile compris­ing: a front wall member generally having a U-shape cross-section; and a rear wall member having a plurality of support­ing tubes extending from a surface of said rear wall member and plate ribs extending between neighboring supporting tubes.
Claim 7
Dependent Claim 46 words
A plastic bumper for use in an automobile compris­ing: a front wall member generally having a U-shape cross-section; and a rear wall member having a plurality of support­ing tubes extending from a surface of said rear wall member and plate ribs extending between neighboring supporting tubes.
Claim 8
Dependent Claim 18 words
A plastic bumper as claimed in Claim 5, wherein said plate ribs extend horizontally between said supporting tubes.
Claim 9
Dependent Claim 19 words
A plastic bumper as claimed in Claim 6, wherein said plate ribs further extend vertically between said supporting tubes.
Claim 10
Dependent Claim 24 words
A plastic bumper as claimed in Claim 5, wherein said front wall member and said rear wall member are formed integrally by blow molding.
Claim 11
Dependent Claim 12 words
The features herein described, or their equivalents, in any patentably novel selection.
Claim 12
Dependent Claim 12 words
The features herein described, or their equivalents, in any patentably novel selection.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag