1. A liquid jet head comprising:
a pressure generation chamber communicating with a nozzle opening ejecting a liquid;
a piezoelectric element causing pressure change inside the pressure generation chamber;
a case head having an accommodation portion accommodating the piezoelectric element; and
a flexible printed board having a driving circuit mounted thereon and connected to the piezoelectric element to drive the piezoelectric element,
wherein the accommodation portion of the case head is provided with a flow passage member holding a base end portion of the piezoelectric element and being connected to the driving circuit in a thermally conductive manner, the case head is provided with a liquid introduction passage for supplying the liquid to the pressure generation chamber, and the flow passage member partitions a part of at least a wall surface of the liquid introduction passage.
2. The liquid jet head according to claim 1, wherein the flow passage member is formed of a material having thermal conductivity higher than that of the case head.
3. The liquid jet head according to claim 1, wherein the liquid introduction passage is partitioned by a groove opened to a side surface of the accommodation portion of the case head and the flow passage member blocking the groove.
4. The liquid jet head according to claim 1, wherein the liquid introduction passage is perforated through the flow passage member.
5. A liquid jet apparatus comprising the liquid jet head according to claim 1.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
I claim:
1. A horse drawn ground vehicle for carrying a passenger, said vehicle comprising:
a frame configured to be supported on the ground by at least three wheels rotatably attached to said frame;
at least one foot link coupled to said at least three wheels, wherein each foot link has a first end and a second end;
at least four foot supports for receiving the hoofs of a horse in standing position, said foot supports supported by said at least one foot link;
at least one coupling system in rotational communication with at least one said foot link to translate the stepping motion of a horse into angular momentum; and
at least one seat.
2. A vehicle as in claim 1, further comprising an attachment device for removably attaching the hoofs of said horse to said foot supports.
3. A vehicle as in claim 1, further comprising a restraint system for containing said horse within said vehicle.
4. A vehicle as in claim 1, further comprising a cover that is in communication with said frame so as to protect the horse and vehicle, yet not make contact with any portion except the frame.
5. A vehicle as in claim 1, further comprising shock absorbers in communication with a portion of said frame to stabilize said frame.
6. A vehicle as in claim 1, further comprising brakes in communication with at least one wheel.
7. A vehicle as in claim 1, wherein said coupling system is comprised of at least one arm in communication with said foot support and an inducer, said inducer in communication with at least one gear to cause rotation of said at least one gear, and a chain in communication with said gear and a main axis, wherein said chain translates motion from said gear to said main axis, which in turn causes the rotation of at least one wheel.
8. A vehicle as in claim 1, wherein said coupling system is at least two arms attached to said wheel as to provide an elliptical motion of said foot supports.
9. A vehicle as in claim 1, further comprising a steering mechanism in communication with at least one said wheel.
10. A horse drawn ground vehicle for carrying a passenger, said vehicle comprising:
a frame configured to be supported on the ground by six wheels rotatably attached to said frame;
four foot links coupled to four of said six wheels, wherein each foot link has a first end and a second end;
four foot supports for receiving the hoofs of a horse in standing position, said foot supporting portion supported by said at least two foot links; and
two coupling systems in rotational communication with at least one said foot link to translate the stepping motion of a horse into angular momentum.
11. A vehicle as in claim 10, further comprising an attachment device for removably attaching the hoofs of said horse to said foot supports.
12. A vehicle as in claim 10, further comprising an aerodynamic cover.
13. A vehicle as in claim 10, further comprising a harness stabilizing system for stabilizing said horse in said horse drawn vehicle.
14. A vehicle as in claim 10, further comprising shock absorbers.
15. A horse drawn vehicle as in claim 10, further comprising brakes in communication with at least one wheel.
16. A horse drawn water vehicle for carrying a passenger, said vehicle comprising:
a frame configured to be supported on the water with at least one water pedal rotatably attached to said frame;
at least two foot links coupled to said at least one water pedal, wherein each foot link has a first end and a second end;
at least four foot supports for receiving the hoofs of a horse in standing position, said foot supports supported by said at least two foot links;
at least one coupling system in rotational communication with at least one said foot link to translate the stepping motion of a horse into angular momentum; and
at least one seat.
17. A vehicle as in claim 16, further comprising an attachment device for removably attaching the hoofs of said horse to said foot supports.
18. A vehicle as in claim 16, further comprising an aerodynamic cover.
19. A vehicle as in claim 16, further comprising a harness stabilizing system for stabilizing said horse in said horse drawn vehicle.
20. A vehicle as in claim 16, further comprising shock absorbers.
21. A horse drawn vehicle as in claim 16, further comprising brakes in communication with at least one wheel.
22. A vehicle as in claim 16, wherein said coupling system is comprised of at least one arm in communication with said foot support and an inducer, said inducer in communication with at least one gear to cause rotation of said at least one gear, and a chain in communication with said gear and a main axis, wherein said chain translates motion from said gear to said main axis, which in turn causes the rotation of at least one wheel.
23. A method of providing an efficient, motorless personal vehicle, comprising;
providing a frame, wherein said frame is supported by at least three wheels;
providing at least four foot supports, wherein at least one foot support is fixed communication with said foot link; and
providing at least one coupling system in rotational communication with at least one said foot link to translate the stepping motion of a horse into angular momentum.
24. A method as in claim 23, wherein said coupling system is comprised at least one arm in communication with said foot support and an inducer, said inducer in communication with at least one gear to cause rotation of said at least one gear, and a chain in communication with said gear and a main axis, wherein said chain translates motion from said gear to said main axis, which in turn causes the rotation of at least one wheel.
25. A method as in claim 24, further comprising the step of gear change mechanism to allow for the change of said at least one gear.