1. An endoscope treatment tool comprising:
a pair of clamp members that is supported by a clamp rotary shaft to be relatively rotatable;
an operation section that is used to open and close the pair of clamp members;
an operation wire that connects the pair of clamp members to the operation section;
a connection member that is provided at the front end of the operation wire and includes at least one link rotary shaft;
a pair of link members of which a first end is rotatably connected to each end of the pair of clamp members and a second end is rotatably connected to the link rotary shaft; and
a regulation portion that regulates the connection member and the operation wire in a relative movement direction with respect to the clamp rotary shaft, and that is capable of coming into contact with at least one of surfaces of the pair of link members, the surfaces facing toward the inner side in the direction in which the pair of link members open and close, when the pair of link members rotate about the link shaft,
wherein the connection member includes a groove formed to be parallel to the axis of the operation wire, and
wherein the regulation portion engages with the groove to regulate the relative movement direction of the connection member and the operation wire, and to regulate rotations of the pair of link members being over a position in which the pair of link members come into contact with the regulation member in a direction in which the pair of link members comes close to the regulation member.
2. The endoscope treatment tool according to claim 1, wherein the regulation portion is a regulation wire disposed to be parallel to the axis of the operation wire.
3. The endoscope treatment tool according to claim 2,
wherein at least one of the pair of clamp members includes an electrode portion to which power is fed and an insulation portion that coats at least a part of the electrode portion, and
wherein a first end of the regulation wire is electrically connected to the electrode portion, and a second end of the regulation wire is connected to a power supply.
4. An endoscope treatment tool comprising:
a pair of clamp members that is supported by a clamp rotary shaft to be relatively rotatable;
an operation section that is used to open and close the pair of clamp members;
an operation wire that connects the pair of clamp members to the operation section;
a connection member that is provided at the front end of the operation wire and includes at least one link rotary shaft;
a pair of link members of which a first end is rotatably connected to each end of the pair of clamp members and a second end is rotatably connected to the link rotary shaft; and
a regulation portion that regulates a relative movement direction of the connection member and the operation wire with respect to the clamp rotary shaft,
wherein the connection member includes a groove formed to be parallel to the axis of the operation wire, and
wherein the regulation portion engages with the groove to regulate the relative movement direction of the connection member and the operation wire so as to become parallel to an axis of the operation member.
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. An input device comprising:
a position detection sensor configured to detect respective positions of multiple pressing points on an operation face that are simultaneously pressed;
a load detection sensor configured to detect a position of a barycenter of the multiple pressing points and a load on the barycenter; and
a controller configured to calculate respective loads on the multiple pressing points based on coordinates of the positions of the multiple pressing points, coordinates of the position of the barycenter, and the load on the barycenter,
wherein the controller is further configured to determine whether or not three pressing points that are simultaneously pressed are all on a same straight line, and if simultaneously-pressed three pressing points are all on the same straight line, the controller corrects the coordinates of the position of one of the pressing points and the coordinates of the position of the barycenter so as to calculate the respective loads on the pressing points.
2. The input device according to claim 1, further comprising:
a panel having a front surface which is the operation face and a back surface,
wherein the load detection sensor includes a plurality of load detection sensors provided in a periphery region of the back surface of the panel.
3. The input device according to claim 1, wherein the position detection sensor is a capacitance type touch panel sensor.
4. The input device according to claim 1, wherein if x-coordinates of the pressing points match one another, the controller shifts one of the x-coordinates; if y-coordinates of the pressing points match one another, the controller shifts one of the y-coordinates; and if a direction of the straight line on which the pressing points are aligned is diagonally tilted with respect to an x-axis and y-axis, the controller shifts one of the x-coordinates or one of the y-coordinates of the pressing points.
5. A multiple point load detecting method for obtaining respective loads of a plurality of pressing points on an operation face which are simultaneously pressed using a position detection sensor and a load detection sensor, the method comprising:
obtaining respective positions of the plurality of pressing points based on an output of the position detection sensor;
obtaining a position of a barycenter of the plurality of pressing points and a load on the barycenter based on an output of the load detection sensor; and
calculating respective loads on the plurality of pressing points based on coordinates of the positions of the plurality of pressing points, coordinates of the position of the barycenter, and the load on the barycenter,
wherein the method further comprises, after obtaining the respective positions and before calculating the respective loads:
detecting whether or not three pressing points that are simultaneously pressed are all on a same straight line;
if it is detected that all of the three pressing points are on the same straight line, correcting the coordinates of the position of one of the plurality of pressing points and coordinates of position of the barycenter; and
if it is not detected that all of the pressing points are on the same straight line, proceeding to the calculating the respective loads,
and wherein, when the correcting the coordinates is performed, the calculating the respective loads uses the corrected coordinates of the one of the positions of the pressing points and the corrected coordinates of the position of the barycenter.
6. The multiple point load detecting method according to claim 5, further comprising:
if the correcting the coordinates is performed, determining whether or not each of the calculated loads on the pressing points is greater than 0 and less than the load of the barycenter; and
if the calculated load on any of the pressing points is less than or equal to 0 or greater than or equal to the load of the barycenter, repeating the correcting the coordinates by changing a correction value for the coordinates of the barycenter, and performing the calculating the respective loads again using the changed correction value.