Sewing machine
AssigneeBrother Kogyo Kabushiki Kaisha
InventorHidenori Oka
Life of this patent
Estimating the term…
Abstract
A sewing machine includes a projector configured to project a projection image onto a projection area above a bed. The projector is arranged on a portion of an arm and includes a first lens, and a light source emitting light guided to the first lens. When a direction orthogonal to the extending direction and the up-down direction and toward a presser bar from a needle bar is defined as a forward feed direction, and a direction opposite the forward feed direction is defined as a reverse feed direction, the light source is arranged in the forward feed direction or the reverse feed direction with respect to the first lens, and a length of the projection area in a short direction of the bed is longer than a length of the projection area in a longitudinal direction of the bed.
Claims13
A sewing machine comprising:
- a needle bar on which a sewing needle is mountable;
- a presser bar on which a presser foot is mountable;
- a pillar extending in an up-down direction;
- a bed extending in an extending direction orthogonal to the up-down direction, from a lower end of the pillar;
- an arm extending in the extending direction parallel to the bed from an upper end of the pillar, above the bed;
- a projector configured to project a projection image onto a projection area on the bed, the projector being arranged on a portion of the arm farther in the extending direction than the needle bar, and including a first lens, and a light source emitting light guided to the first lens, and, when a direction orthogonal to the extending direction and the up-down direction and toward the presser bar from the needle bar is defined as a forward feed direction, and a direction opposite the forward feed direction is defined as a reverse feed direction, the light source being arranged in the forward feed direction or the reverse feed direction with respect to the first lens, and a length of the projection area in a short direction of the bed being longer than a length of the projection area in a longitudinal direction of the bed;
- and
- a needle plate arranged on an upper surface of the bed, wherein
- the projection area includes a needle drop position positioned below the needle bar on the bed, and
- an end of the projection area in the forward feed direction is positioned farther in the forward feed direction than an end of the needle plate in the forward feed direction.
A sewing machine comprising:
- a pillar extending in an up-down direction;
- a bed extending in an extending direction orthogonal to the up-down direction, from the pillar;
- an arm extending in the extending direction from the pillar, above the bed;
- a projector configured to project a projection image onto a projection area on the bed, the projector being arranged on the arm, and a length of the projection area in a forward feed direction being greater than a length of the projection area in the extending direction, the forward feed direction being a direction orthogonal to the extending direction and the up-down direction;
- and
- a needle plate arranged on an upper surface of the bed, wherein
- both ends of the needle plate being positioned between both ends of the projection area in the forward feed direction.
A sewing machine comprising:
- a pillar extending in an up-down direction;
- a bed extending in an extending direction orthogonal to the up-down direction, from the pillar;
- an arm extending in the extending direction from the pillar, above the bed, the arm having a fixing surface;
- a projector configured to project a projection image onto a projection area on the bed, the projector being fixed on the fixing surface, the projector having a first lens;
- and
- a needle bar extending in the up-down direction, the needle bar being arranged between the first lens and the fixing surface in a forward feed direction, the forward feed direction being a direction orthogonal to the extending direction and the up-down direction, wherein
- the needle bar is arranged between the pillar and the projector in the extending direction,
- the first lens is an eccentric optical projection lens, and
- the projection area includes a needle drop position positioned below the needle bar on the bed.
Dependencies are inferred from the claim text.