1. A method for balancing an elevator car, the elevator car comprising:
a frame;
a cabin box mounted on the frame;
several elastic members arranged in a vertical direction between the frame and the cabin box, via which elastic members the cabin box rests on the frame.
the method comprising the steps of:
measuring a vertical distance between the frame and the cabin box in several horizontally spaced apart locations with distance sensors; and
adjusting a weight distribution of the cabin box.
2. The method according to claim 1, wherein said adjusting the weight distribution of the cabin box comprises the step of adding weight elements on the cabin box andor removing weight elements mounted on the cabin box andor repositioning weight elements mounted on the cabin box.
3. The method according to claim 1, wherein the method comprises the step of mounting said several distance sensors in the vertical direction between the frame and the cabin box in said several horizontally spaced apart locations.
4. The method according to claim 1, wherein said adjusting comprises the step of adjusting the weight distribution of the cabin box until measured vertical distances between the frame and the cabin box in said several locations (A,B,C,D) are as desired.
5. The method according to claim 1, wherein said measuring is continuous or is repeated one or more times.
6. The method according to claim 1, wherein said adjusting comprises the step of adjusting the weight distribution of the cabin box until measured vertical distances between the frame and the cabin box in said several locations are at least substantially the same with each other or until each measured vertical distance is at least substantially the same as a predetermined reference value or until each measured vertical distance falls within a predetermined reference range.
7. The method according to claim 1, wherein the method further comprises the step of comparing the measured vertical distances with each other or with a predetermined reference value or a predetermined reference range.
8. The method according to claim 1, wherein said adjusting weight distribution of the cabin box is done by adding andor removing andor repositioning weight elements on the cabin box in locations horizontally spaced apart from the center of the vertical projection of the cabin box.
9. An arrangement for balancing an elevator car, the elevator car comprising;
a frame;
a cabin box mounted on the frame;
several elastic members in a vertical direction between the frame and the cabin box, via which elastic members the cabin box rests on the frame,
the arrangement
several distance sensors mounted in several horizontally spaced apart locations between the frame and the cabin box for sensing the vertical distance between the frame and the cabin box in said locations.
10. The method according to claim 1, wherein said elastic members are springs or equivalent.
11. The method according to claim 1, wherein said several horizontally spaced apart locations form tips of a polygon when viewed from above.
12. The method according to claim 1, wherein each of said several horizontally spaced apart locations is adjacent to one of said elastic members.
13. The method according to claim 1, wherein a display unit is connected to each of said distance sensors to display the result of the sensing.
14. The method according to claim 1, wherein in each said location a gap exists between an upper face of the frame and a lower face of the cabin box in vertical direction, the sensors being configured to sense the vertical distance between the upper face of the frame and the lower face of the cabin box.
15. The method according to claim 1, wherein in each said location a gap exists between an upper face of the frame and a lower face of the cabin box in the vertical direction, the sensor being mounted to rest on top of the upper face of the frame within the gap.
16. The method according to a claim 1, wherein the elevator car hangs in a hoistway suspended by ropes connected to the frame.
17. The method according to claim 1, wherein said several horizontally spaced apart locations form tips of a polygon when viewed from above, the center of a vertical projection of the cabin box being within the polygon.
18. The method according to claim 1, wherein a display unit is connected to each of said distance sensors to display the result of the distance measured by each distance sensor.
19. A method according to claim 2, wherein the method comprises the step of mounting said several distance sensors in the vertical direction between the frame and the cabin box in said several horizontally spaced apart locations.
20. The method according to claim 2, wherein said adjusting comprises the step of adjusting the weight distribution of the cabin box until measured vertical distances between the frame and the cabin box in said several locations are as desired.
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 surgical tool system comprising:
a surgical tool shaft having a distal end and a proximal end;
a plurality of surgical tool tips detachably connectable to the distal end of the shaft;
wherein the surgical tool shaft includes a low power electrical interface, a high power electrical interface, and a mechanical interface.
2. A surgical tool system as in claim 1, wherein at least some of the surgical tool tips have sensors which connect to the low power electrical interface.
3. A surgical tool system as in claim 1, wherein at least some of the surgical tool tips have cameras which connect to the low power electrical interface.
4. A surgical tool system as in claim 1, wherein at least some of the surgical tool tips have electrodes which connect to the high power electrical interface.
5. A surgical tool system as in claim 1, wherein at least some of the surgical tool tips have electrical motors which connect to the high power electrical interface.
6. A surgical tool system as in claim 1, wherein motors are connected to cameras for adjusting focus or magnification.
7. A surgical tool system as in claim 1, wherein the mechanical interface provides linear actuation.
8. A surgical tool system as in claim 1, wherein the mechanical interface provides rotational actuation.
9. A surgical tool system as in claim 1, wherein the mechanical interface provides both rotational and linear actuation.
10. A surgical tool system comprising:
a surgical tool shaft having a distal end and a proximal end;
a surgical tool tip detachably connectible to the distal end of the shaft;
wherein the tool shaft includes a surface feature which mates with a lock mechanism on the tool tip so that rotation of the shaft relative to the tool tip releases the tip from the shaft.
11. A surgical tool system as in claim 10, wherein the shaft has a cylindrical outer surface and the surface feature comprises at least one flat facet on the cylindrical surface.
12. A tool tip cassette system comprising:
a plurality of tool carrier segments at least some of which are connected with articulating joints; and
a cassette manipulator including a handle and an attachment shaft;
wherein the shaft is configured to pass through tissue from an external locator to a location in a body cavity and wherein a distal end of the attachment shaft can be detachably secured to the tool carrier within the body cavity while the handle is attached to the shaft at the external location.
13. A tool tip cassette system as in claim 12, wherein the cassette manipulator includes a mechanism to selectively release the tool carrier from the shaft.
14. A tool tip cassette system as in claim 12, wherein the cassette manipulator includes a mechanism to selectively release the manipulator from the shaft.