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 1):
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 the at least one compression drawing adjusts an average thickness of the circumferential wall of the body element before the finishing ironing so that an ironing ratio in the finishing ironing is in a predetermined range by adjusting the supporting force for supporting the pad portion according to the thickness of the base metal sheet.

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