1. A safety cover for a sewing machine mounted so as to cover a sewing needle mounted on a needle bar of the sewing machine, the safety cover comprising:
a transparent guard member mounted in close proximity of the sewing needle and shaped so as to cover at least a front side of a sewing needle and
a fastening equipment for detachably attaching the guard member directly to a needle plate on a sewing machine bed upper surface.
2. The safety cover according to claim 1, wherein the guard member comprises a vertical wall covering a front side and lateral sides of the sewing needle and a bottom wall provided with the fastening equipment thereon.
3. The safety cover according to claim 2, wherein the bottom wall of the guard member has an opening for preventing the guard member from interfering with a cloth feed dog feeding a workpiece cloth by protrudingretracting from the needle plate.
4. The safety cover according to claim 2, wherein the guard member is attachable to a presser bar or a lower end of a sewing machine head by being turned upside down where the bottom wall is disposed to an upper side, and the guard member and an upper surface of the needle plate define a space therebetween through which a workpiece cloth can be passed.
5. The safety cover according to claim 4, wherein an edge of the opening in the bottom wall of the guard member is locked to the presser bar or the sewing machine head so as to be unremovable in a downward direction.
6. The safety cover according to claim 1, wherein the fastening equipment comprises a magnet.
7. The safety cover according to claim 1, wherein the guard member is constructed by bending and assembling a flat sheet made of synthetic resin.
8. The safety cover according to claim 7, wherein the guard member can be disassembled to an original flat surface.
9. The safety cover according to claim 7, wherein the guard member comprises a single sheet.
10. The safety cover according to claim 1, wherein the guard member has a notch allowing an operation of a presser foot lifting lever.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A welding method for manufacturing a golf club head comprising the steps of:
prefabricating a first club head member having a first welding surface, and a second club head member having a second welding surface;
aligning the first welding surface of the first club head member with the second welding surface of the second club head member; and
welding the first welding surface of the first club head member to the second welding surface of the second club head member to form a welding portion by means of magnetic pulse welding to constitute the golf club head.
2. The welding method for manufacturing the golf club head as defined in claim 1, wherein the first club head member is a golf club head body including at least one interior compartment and an opening thereof, and the opening is located at a front side of the interior compartment.
3. The welding method for manufacturing the golf club head as defined in claim 1, wherein the second golf club head member is a striking plate and consists of an annular wall portion and a face portion, and the second welding surface is provided on an inner surface of the annular wall which further provides with an assembling hole to assemble the face wall.
4. The welding method for manufacturing the golf club head as defined in claim 1, wherein the first welding surface and the second welding surface are correspondingly inclined.
5. The welding method for manufacturing the golf club head as defined in claim 1, wherein the first club head member is a golf club head body including at least one interior compartment and an opening thereof, and the golf club head body provides with a stepped portion at the opening of the interior compartment.
6. The welding method for manufacturing the golf club head as defined in claim 5, wherein the golf club head body further provides with an operation hole in communication with a rear side of the interior compartment, and the operation hole connects with a rear cover.
7. The welding method for manufacturing the golf club head as defined in claim 1, wherein the second club head member is a striking plate integrally formed an annular upright wall so that the second welding surface is provided on an inner surface of the striking plate.
8. The welding method for manufacturing the golf club head as defined in claim 1, wherein the first club head member is a golf club head body provided with a recession at a front side so that the first welding surface is located on an outer surface of the golf club head body.
9. The welding method for manufacturing the golf club head as defined in claim 1, wherein the second club head member is a striking plate integrally formed an annular upright wall so that the second welding surface is provided on an end surface of the striking plate.
10. The welding method for manufacturing the golf club head as defined in claim 1, wherein the first club head member and the second club head member are made of heterogeneous metal or alloy.