PATENT CLAIM ANALYSIS

Application Number: 15759637
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-09
Patent Classification: ["029", "888010"]

Abstract:
A jig ( 31 ) is placed on a cylinder block ( 11 ) set in an inverted position, and a crankshaft ( 5 ) is lifted upward from a main bearing part ( 17 ) and held at a predetermined height position. A lower link ( 7 ) temporarily fitted to a crank pin ( 6 ) in the previous step is rotated about the crank pin ( 6 ) as a cener by a robot hand, and held in a predetermined inclined position in which a dividing surface ( 28 ) becomes vertical. In this state, a pair of bolts ( 29 ) is horizontally fastened from the right and the left by using a nut runner ( 55 ).

Claim (Index 1):
A bolt fastening method for lower links in an internal combustion engine equipped with a multi-link-type piston crank mechanism including upper links, the lower links and control links, wherein each of the lower links which is divided into two parts of a lower link lower and a lower link upper is attached so as to sandwich a corresponding one of crank pins and a pair of bolts of each of the lower links is fastened from directions opposite to each other, and then fixed,\n the bolt fastening method for the lower links comprising: holding a cylinder block in an inverted position such that a crank case side faces upward; temporarily fitting the lower links of respective cylinder sections, the lower links each of which is connected with a corresponding one of pistons via a corresponding one of the upper links in advance, to the respective crank pins of corresponding ones of cylinder sections in a crankshaft in a state in which each of the pistons is fitted into a corresponding one of cylinders; setting the crankshaft to a state of being lifted to an upper position apart from main baring parts of bulkheads such that all of a plurality of the crank pins having different phases from each other are each set at a position lifted upward from a reference plane surface along end edges of skirt parts of the cylinder block; and fastening the pair of the bolts of each of the lower links from right and left directions by nut runners in a state in which inclined positions of the lower links of the respective cylinder sections, centering the crank pins, are each held at a position in which heads of the pair of the bolts of each of the lower links are directed to right and left directions.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 90.0
- Lexical Diversity: 1.72973
- Patent Class: 29.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['11637185', '11104614', '10550257', '11717957', '12255370']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.865281292303876
- 35 USC 102 Novelty (BERT): 0.4821602378748629
- Combined Prediction Score: 0.8269691868609748
- Mean Citation Score: 200.804068
- Max Citation Score: 218.48459
- Similarity Product: 168.36360452772678

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