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US 7,478,948 B2Granted
Bearing and X-ray diagnostic apparatus using same
AssigneesKabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
InventorKoji Noda
Life of this patent
Estimating the term…
Abstract
A rotary mechanism uses a rolling element, an outer-ring housing member and an inner-ring housing member. The outer-ring housing member or the inner-ring housing member is divided thicknesswise into two parts, to have a gap at between the two-divided parts of the housing member. Due to this, slide resistance can be caused by deforming the rolling element received in the outer-ring and inner-ring housing members.
Claims12
An X-ray diagnostic apparatus comprising:
- a support mechanism that supports an arm provided with an X-ray tube at one end and an imager at the other end;
- and
- a rotary mechanism that makes the support mechanism rotatable;
- the rotary mechanism including a bearing, an outer-ring holder and an inner-ring holder;
- the bearing including a rolling element, an outer-ring housing member and an inner-ring housing member, the outer-ring and inner-ring housing members being to slide through the rolling element;
- the outer-ring holder having a grooved opening supporting the outer-ring housing member of the bearing;
- the inner-ring holder having a grooved opening supporting the inner-ring housing member of the bearing;
- at least one of the outer-ring and inner-ring housing members being vertically divided into two parts;
- the grooved opening of the outer-ring holder or the inner-ring holder on a side of the two-divided housing member having a dimension smaller than a vertical dimension of the two-divided housing member with which the rolling element is in contact with the two-divided housing member.
6 more elements
An X-ray diagnostic apparatus comprising:
- a support mechanism that supports an arm provided with an X-ray tube at one end and an imager at the other end;
- and
- a rotary mechanism that makes the support mechanism rotatable;
- the rotary mechanism including a bearing;
- the bearing including a rolling element, an outer-ring housing member and an inner-ring housing member;
- the outer-ring and inner-ring housing members being to slide through the rolling element, and forming a container to receive the rolling element;
- the rolling element being received deformed in the container.
4 more elements
A rotary mechanism, comprising:
- a bearing;
- an outer-ring holder;
- and
- an inner-ring holder,
- the bearing including a rolling element, an outer-ring housing member, and an inner-ring housing member, the outer-ring and inner-ring housing members being configured to slide through the rolling element;
- the outer-ring holder having a grooved opening supporting the outer-ring housing member of the bearing;
- the inner-ring holder having a grooved opening supporting the inner-ring housing member of the bearing;
- at least one of the outer-ring and inner-ring housing members being vertically divided into two parts;
- and
- the grooved opening of the outer-ring holder or the inner-ring holder on a side of the two-divided housing member having a dimension smaller than a vertical dimension of the two-divided housing member with which the rolling element is in contact with the two-divided housing member.
7 more elements
Dependencies are inferred from the claim text.