PATENT CLAIM ANALYSIS

Application Number: 15759849
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2019-02
Patent Classification: ["324", "207200"]

Abstract:
Provided is a linear motion and rotation drive apparatus capable of minimizing inertia due to a magnetic scale attached to an output shaft when the output shaft is linearly moved or rotate. A linear motion and rotation drive apparatus ( 1 ) includes an output shaft ( 2 ), a linear motor ( 3 ), a rotational motor ( 4 ), a ball spline bearing ( 5 ), a magnetic scale ( 8 ), a first magnetic detection element ( 41 ) configured to detect a linear motion, and a second magnetic detection element ( 42 ) configured to detect a rotational motion. The magnetic scale ( 8 ) includes a lattice-shaped magnetized pattern ( 37 ) in which S poles and N poles are alternately arranged in an axis L direction and S poles and N poles are alternately magnetized in a direction around the axis (L) on a circumferential surface thereof in the direction around an axis (L). The first magnetic detection element ( 41 ) and the second magnetic detection element ( 42 ) are disposed to face the magnetized pattern ( 37 ). Since a linear motion position and a rotating position can be detected using the first magnetic detection element ( 41 ) and the second magnetic detection element ( 42 ) that face the same magnetized pattern ( 37 ), a size of a linear motion and rotation detector ( 7 ) in the axis L direction is not increased and a weight thereof is not increased.

Claim (Index 1):
A linear motion and rotation drive apparatus comprising:\n an output shaft; a linear motor that moves the output shaft along an axis; a rotational motor that rotates the output shaft in a direction around the axis; a bearing that supports the output shaft to be movable in an axial direction and transfers a driving force of the rotational motor to the output shaft; a cylindrical magnetic scale fixed coaxially with the output shaft; a first magnetic detection element configured to detect a linear motion; and a second magnetic detection element configured to detect a rotational motion, wherein the magnetic scale includes a lattice-shaped magnetized pattern in which S poles and N poles are alternately arranged in the axial direction and S poles and N poles are alternately magnetized in the direction around the axis on a circumferential surface thereof in the direction around the axis, the first magnetic detection element and the second magnetic detection element are disposed to face the magnetized pattern, and the magnetic scale, the linear motor, the rotational motor, and the bearing are arranged coaxially.

Metadata:
- Claim Count in Document: 15.0
- Percentile: 90.0
- Lexical Diversity: 2.98889
- Patent Class: 324.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15759848', '14001924', '12458416', '15271604', '14016227']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5136537477549525
- 35 USC 102 Novelty (BERT): 0.5393537586781948
- Combined Prediction Score: 0.5162237488472767
- Mean Citation Score: 229.37552
- Max Citation Score: 384.36057
- Similarity Product: 331.5762200523448

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

Dataset: test