1. A performance dress shirt comprising:
a front portion comprising a first material;
a back portion coupled to the front portion, the back portion comprising:
outer sections comprising the first material; and
an inner section comprising a second material different from the first material; and
two sleeves comprising the first material connected substantially opposite each other to the front portion and the back portion.
2. The performance dress shirt of claim 1, wherein the first material comprises a material adapted to wick moisture away from a wearer and dry quickly.
3. The performance dress shirt of claim 2, wherein the first material comprises an interior layer comprising a smaller pore structure than the pore structure of an exterior layer.
4. The performance dress shirt of claim 2, wherein the first material comprises a material adapted to spread moisture across a surface.
5. The performance dress shirt of claim 1, wherein the first material comprises a phase change material.
6. The performance dress shirt of claim 5, wherein the phase change material is disposed on an interior face.
7. The performance dress shirt of claim 1, wherein the first material comprises at least one of an agent and a coating comprising antimicrobial agents to combat odor.
8. The performance dress shirt of claim 7, wherein the antimicrobial agents are integral with the first material.
9. The performance dress shirt of claim 7, wherein the antimicrobial agents comprise at least one of zinc and silver.
10. The performance dress shirt of claim 1, wherein a location of the inner section is determined based on at least one of a photogrammetric strain and a thermographic analysis.
11. The performance dress shirt of claim 1, wherein the inner section is disposed in a central area of the back portion.
12. The performance dress shirt of claim 1, wherein the second material comprises a greater elasticity than the first material.
13. The performance dress shirt of claim 12, wherein the second material comprises a 4-way stretch fabric.
14. The performance dress shirt of claim 1, wherein the second material is adapted to vent heat from the body.
15. The performance dress shirt of claim 1, wherein the sleeves are adapted to cover substantially all of a wearer’s arms.
16. The performance dress shirt of claim 1, wherein the back portion outer sections and inner portion are sewn together forming seams.
17. The performance dress shirt of claim 16, wherein the seams are aligned so that the seams substantially correspond to lines of non-extension on a wearer’s body when worn.
18. A method of manufacturing a performance dress shirt, the method comprising:
providing a front portion comprising a first material;
providing a back portion, the back portion comprising:
outer sections comprising the first material; and
an inner section comprising a second material different from the first material, wherein the outer sections are sewn to the inner section;
providing two sleeves comprising the first material; and
sewing the front portion, the back portion, and the sleeves together to form the shirt.
19. A performance dress shirt comprising:
a front portion;
a back portion connected to the first portion; and
two sleeves connected substantially opposite each other to the front portion and the back portion,
wherein each of the front portion, the back portion, and the sleeves comprise an interior layer and an exterior layer, wherein the interior layer comprises a smaller pore structure than the exterior layer.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
What is claimed is:
1. A power transmission system for a working machine wherein drive power is transmitted from a prime mover to a work-tool holding drive shaft via a reduction mechanism for driving work tools mounted on the drive shaft in a working condition thereof, the reduction mechanism comprising:
an input shaft;
a first gear mounted on the input shaft;
an output shaft;
a second gear mounted on the output shaft and meshing with the first gear; and
a gear case for accommodating the first and second gears;
the second gear including a torque limiter composed of a gear portion and a cylindrical boss segment press fitted to the gear portion.
2. A power transmission system according to claim 1, wherein the reduction mechanism is a worm type reduction mechanism, the first gear is a worm gear, and the second gear is a wheel.
3. A power transmission system according to claim 1, wherein the boss segment and the gear portion, which form the torque limiter, have respective contact surfaces, at least one of which is treated with sulphurizing process.
4. A power transmission system according to claim 1, further comprising bearings for rotatably supporting the input shaft, at least one of which is an angular type bearing.
5. A power transmission system according to claim 1, wherein the boss segment has at its one end formed with an annular flange and the gear portion is formed with an annular recess to accommodate the annular flange.