A sewing system serves for sewing seams which the multi-dimensionally in space. A needle-bar upper part of a sewing head is mounted so as to be pivotable in a driven manner about a needle-bar longitudinal axis. A gripper lower part is mounted so as to be pivotable in a driven manner, and in a manner synchronous with the needle-bar upper part, about the needle-bar longitudinal axis, in the sewing-head lower part. Motor components for driving the movement of a needle bar, for pivoting the needle-bar upper part, for driving a gripper in a manner synchronous with the needle bar and for pivoting the gripper lower part are disposed outside the needle-bar upper part and outside the gripper lower part. Parts to be sewn that are topographically non-uniform are also rendered accessible.

A sewing system serves for sewing seams which the multi-dimensionally in space. A needle-bar upper part of a sewing head is mounted so as to be pivotable in a driven manner about a needle-bar longitudinal axis. A gripper lower part is mounted so as to be pivotable in a driven manner, and in a manner synchronous with the needle-bar upper part, about the needle-bar longitudinal axis, in the sewing-head lower part. Motor components for driving the movement of a needle bar, for pivoting the needle-bar upper part, for driving a gripper in a manner synchronous with the needle bar and for pivoting the gripper lower part are disposed outside the needle-bar upper part and outside the gripper lower part. Parts to be sewn that are topographically non-uniform are also rendered accessible.

A knee operated lifting mechanism for a presser foot of a sewing machine is fixed on a body of the sewing machine, the body is provided with a presser-foot shaft, the knee operated lifting mechanism is drivingly connected to the presser-foot shaft, so as to consequently drive the presser foot to move up and down. The knee operated lifting mechanism includes a knee pushing device, a cable and a rotary member. The knee pushing device includes a knee pushing plate to be operated by a user. The cable is drivingly connected to the knee pushing plate to control the rotation of a drive shaft and the rotation of the presser-foot shaft as well, which consequently controls the upward and downward motion of the presser foot, and thus considerably simplifying the structure of the knee operated lifting mechanism.

A knee operated lifting mechanism for a presser foot of a sewing machine is fixed on a body of the sewing machine, the body is provided with a presser-foot shaft, the knee operated lifting mechanism is drivingly connected to the presser-foot shaft, so as to consequently drive the presser foot to move up and down. The knee operated lifting mechanism includes a knee pushing device, a cable and a rotary member. The knee pushing device includes a knee pushing plate to be operated by a user. The cable is drivingly connected to the knee pushing plate to control the rotation of a drive shaft and the rotation of the presser-foot shaft as well, which consequently controls the upward and downward motion of the presser foot, and thus considerably simplifying the structure of the knee operated lifting mechanism.

A presser device includes an attachment body, an adjustment member, and a presser body. The attachment body includes an attachment portion and a shaft. The attachment portion is attached to a presser bar included in a sewing machine and extending in a first direction. The shaft extends in a second direction that intersects the first direction. The adjustment member is configured to be screwed together with one end of the shaft and to rotate with respect to the shaft around a rotation axis extending in the second direction. The presser body includes an insertion hole and an insertion portion, the insertion hole penetrating in the first direction. The insertion portion is configured such that the shaft is inserted therethrough. The presser body is configured to move in the second direction with respect to the attachment body along the shaft in accordance with the rotation of the adjustment member.

A presser device includes an attachment body, an adjustment member, and a presser body. The attachment body includes an attachment portion and a shaft. The attachment portion is attached to a presser bar included in a sewing machine and extending in a first direction. The shaft extends in a second direction that intersects the first direction. The adjustment member is configured to be screwed together with one end of the shaft and to rotate with respect to the shaft around a rotation axis extending in the second direction. The presser body includes an insertion hole and an insertion portion, the insertion hole penetrating in the first direction. The insertion portion is configured such that the shaft is inserted therethrough. The presser body is configured to move in the second direction with respect to the attachment body along the shaft in accordance with the rotation of the adjustment member.

A coating apparatus of an airbag reinforcing liquid is used in a sewing machine that includes: a sewing needle driving an upper thread by penetrating sewing target cloth through a vertical movement; and a presser foot disposed above the sewing target cloth, and feeding the sewing target cloth while moving vertically synchronously with the vertical movement of the sewing needle. The coating apparatus includes: a reinforcing liquid supplying part, supplying a reinforcing liquid for reinforcing a sewn part onto the sewing target cloth on a front side from the sewing needle in a feeding direction of the sewing target cloth; and a stamp part attached to the presser foot, and expand the reinforcing liquid supplied from the reinforcing liquid supplying part onto the sewing target cloth around the sewn part by being operated integrally with the presser foot above the sewing target cloth.

A coating apparatus of an airbag reinforcing liquid is used in a sewing machine that includes: a sewing needle driving an upper thread by penetrating sewing target cloth through a vertical movement; and a presser foot disposed above the sewing target cloth, and feeding the sewing target cloth while moving vertically synchronously with the vertical movement of the sewing needle. The coating apparatus includes: a reinforcing liquid supplying part, supplying a reinforcing liquid for reinforcing a sewn part onto the sewing target cloth on a front side from the sewing needle in a feeding direction of the sewing target cloth; and a stamp part attached to the presser foot, and expand the reinforcing liquid supplied from the reinforcing liquid supplying part onto the sewing target cloth around the sewn part by being operated integrally with the presser foot above the sewing target cloth.

A fabric clamp that passes under the presser foot of a sewing machine is provided. The clamp has a loop of resilient strip folded over upon itself, an upper slotted lever, and a lower slotted lever. The resilient strip has an upper portion, the terminus of which defines an upper planar jaw, and a generally planar lower portion, the terminus of which defines a lower planar tongue, joined by a curvilinear central portion. The upper portion of the resilient strip passes through the upper lever. The lower portion of the resilient strip passes through the lower lever. The total transverse width of the portions of the tongue is no more than about 12 mm. The curvilinear portion urges the jaw and tongue together. When the upper jaw and the tongue are adjacent and the levers are urged together, the jaw and the tongue are displaced from adjacent deployment.

A hopping foot assembly for a sewing machine having a needle comprises a hopping foot base and a hopping foot arm. The hopping foot base is shaped to include a needle opening that extends axially therethrough relative to an axis. The hopping foot arm extends from the hopping foot base. The hopping foot arm is configured to be coupled to the sewing machine to fix the hopping foot base relative to the sewing machine.