PATENT CLAIM ANALYSIS

Application Number: 16079555
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-02
Patent Classification: ["072", "349000"]

Abstract:
An object of the present invention is to provide a method for manufacturing a molded member, which can maintain high accuracy circularity of an inner diameter of a tubular body even if a thickness of a base metal sheet varies and which can prevent occurrence of adhesion, seizure of the like of the base metal sheet to a die used for finishing ironing. The base metal sheet is subjected to multi-stage drawing to manufacture the molded member including a tubular body and a flange formed at an end portion of the body. The multi-stage drawing includes: preliminary drawing for forming a preliminary body having a body element from the base metal sheet; at least one compression drawing performed after the preliminary drawing and forming the body by drawing the body element while applying a compressive force to the body element; and at least one finishing ironing performed after the at least one compression drawing to ensure dimensional accuracy.

Claim (Index 3):
A method for manufacturing a molded member by carrying out multi-stage drawing on a base metal sheet, the molded member comprising: a tubular body; and a flange formed at an end portion of the body,\n wherein the multi-stage drawing comprises: preliminary drawing for forming a preliminary body having a body element from the base metal sheet; at least one compression drawing performed after the preliminary drawing using a mold, the mold comprising: a die having a pushing hole; a punch for being inserted into the inside of the body element to push the body element into the pushing hole; and a compressing means for applying a compressive force along a depth direction of the body element to a circumferential wall of the body element, the at least one compression drawing forming the body by drawing the body element while applying the compressive force to the body element; and at least one finishing ironing performed after the at least one compression drawing; wherein the compressing means comprises a lifter pad, the lifter pad comprising: a pad portion which is disposed at an outer circumferential position of the punch so as to face the die, and on which a lower end of the circumferential wall of the body element is placed; and an urging portion, the urging portion being configured to support the pad portion from below and enable a supporting force for supporting the pad portion to be adjusted; wherein the at least one compression drawing is performed so as to be completed until the pad portion reaches a bottom dead center; wherein the supporting force acts upon the body element as the compressive force when performing the compression drawing of the body element; and wherein in the at least one finishing ironing process, an ironing ratio Y is defined by the following equation: Y \ue8a0 ( % ) = t re - c re c re \u00d7 100 in which: c re  represents clearance of a mold used for the finishing ironing; and t re  represents an average thickness of the circumferential wall of the body element before the finishing ironing; and a ratio X of a curvature radius r of a shoulder portion of a die of the mold used for the finishing ironing to the average thickness t re  of the circumferential wall of the body element before the finishing ironing is defined as:\n X=r/t re ; and \n wherein the ironing ratio Y is determined so as to satisfy the following equation with respect to the ratio X:\n 0< Y\u2264 19.8 X\u2212 5.2

Metadata:
- Claim Count in Document: 1.0
- Percentile: 96.0
- Lexical Diversity: 2.18421
- Patent Class: 72.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['16078181', '14782848', '15113867', '14769669', '14349794']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6743772330254436
- 35 USC 102 Novelty (BERT): 0.512405454590782
- Combined Prediction Score: 0.6581800551819774
- Mean Citation Score: 224.61780000000005
- Max Citation Score: 289.30362
- Similarity Product: 212.66868643444064

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test