1. A lawn cutting device comprising:
a handle having a hollow connecting part that has a bottom end portion defining a bottom opening;
a driving member having an output shaft that is received in said connecting part of said handle and that extends outwardly through said bottom opening;
a blade-mounting seat spaced apart from said bottom end portion of said connecting part of said handle, and aligned coaxially with and secured to said output shaft;
a blade member mounted on said blade-mounting seat; and
a protecting member including a cup-shaped body that is coaxially aligned with and that extends from said blade-mounting seat, and that defines a recess which receives said bottom end portion of said connecting part of said handle therein.
2. The lawn cutting device of claim 1, wherein said connecting part of said handle is cylindrical in shape.
3. The lawn cutting device of claim 1, wherein said cup-shaped body diverges from said blade-mounting seat toward said connecting part.
4. The lawn cutting device of claim 1, wherein said protecting member further includes an annular wall that is coaxially aligned with and that extends from said blade-mounting seat into said recess, and that cooperates with said cup-shaped body to define a gap therebetween, said bottom end portion of said connecting part of said handle extending into said gap.
5. The lawn cutting device of claim 1, further comprising a protecting shield that includes a sleeve that is sleeved on said connecting part, a sector-shaped plate that extends radially from said sleeve and that has a surrounding edge, and a surrounding wall that extends from said surrounding edge of said sector-shaped plate so as to surround a rear side of said blade member.
6. The lawn cutting device of claim 5, wherein said connecting part is formed with an annular shoulder that cooperates with said sleeve to define a gap therebetween, said lawn cutting device further comprising a stopper that includes an annular plate extending fittingly into said gap between said sleeve of said protecting shield and said shoulder of said connecting part and formed with a plurality of angularly displaced fingers, said fingers having tips that cooperatively define a circle having a diameter greater than that of said blade member.
7. The lawn cutting device of claim 1, wherein said blade-mounting seat includes a cylindrical body having top and bottom ends, said cup-shaped body extending from said top end of said cylindrical body toward said connecting part of said handle, said bottom end of said cylindrical body being formed with a radially extending groove, said blade member being fittingly received in said radially extending groove in said bottom end of said cylindrical body.
8. The lawn cutting device of claim 1, wherein said blade-mounting seat includes a cylindrical body that has top and bottom ends and that is formed with a flange extending radially from said top end of said cylindrical body, and a sleeve that extends between said top and bottom ends of said cylindrical body, that is sleeved on said cylindrical body, and that cooperates with said flange to define a gap therebetween, said cup-shaped body having a base portion that extends fittingly into said gap between said flange and said sleeve, and a truncated-conical portion that diverges from said base portion and that defines said recess, said blade-mounting seat further including a fastening plate that is spaced apart from said bottom end of said cylindrical body and that is fastened to said output shaft for sandwiching said blade member between said fastening plate and said bottom end of said cylindrical body, said sleeve being sandwiched between said blade member and said base portion of said cup-shaped body upon fastening of said fastening plate to said output shaft.
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 method comprising:
receiving, on a user interface device (UID), an input, the input including event-associated information, the event-associated information based on a user’s interaction with an application implemented on associated device; and
responsive to receiving the input, imparting individual vector-specific movements to the UID via an electrically-deformable material associated with the UID, wherein a direction or a magnitude of the individual vector-specific movements is based, at least in part, on the input and at least two of the individual vector-specific movements overlap.
2. The method of claim 1, wherein the UID is selected from a group consisting of a component of the associated device, a component integrated with the associated device, and a component separate from and communicatively linked with the associated device.
3. The method of claim 1, wherein the imparting the individual vector-specific movements to the UID comprises: utilizing the event-associated information to determine one or more drive parameters, wherein the one or more drive parameters specify the direction or the magnitude of the individual vector-specific movements; and applying, in accordance with the one or more drive parameters, one or more drive voltages to the electrically-deformable material.
4. The method of claim 1, wherein the direction or the magnitude of the one or more vector-specific movements is further based at least in part on information other than the input.
5. The method of claim 4, wherein the information other than the input comprises information is associated with an orientation of the UID.
6. The method of claim 1, wherein the electrically-deformable material comprises at least one material selected from the group consisting of: an electroactive polymer and a conductive material.
7. The method of claim 1, wherein the imparting the individual vector-specific movements to the UID comprises overlapping three of the individual vector-specific movements to impart a three-dimensional haptic feedback to the UID.
8. A user interface device, comprising;
a controller configured to receive an input, the input including information about an event associated with an application implemented on an associated device communicatively linked with the user interface device;
an actuator interface module configured to apply one or more drive voltages to one or more regions of a vector-specific actuator, the vector-specific actuator configured to impart individual vector-specific movements to the user interface device, each of the individual vector-specific movements correlating with a portion of the event associated with the application implemented on the communicatively linked associated device wherein at least two of the individual vector-specific movements overlap in accordance with the event; and
an electrically-deformable material associated with the controller and configured to be electrically driven to impart the individual vector-specific movement to the user interface device, wherein a direction or a magnitude of the vector-specific movement is based at least in part on the input.
9. The user interface device of claim 8, wherein the user interface device is selected from a group consisting of: a video game controller, a mouse, a key or keyboard element, and a component of a computing device.
10. The user interface device of claim 8, wherein three of the individual vector- specific movements overlap to impart three-dimensional haptic feedback.
11. The user interface device of claim 8, wherein the controller is further configured to utilize the input to determine one or more drive parameters, wherein the one or more drive parameters specify at least one of the direction, the magnitude, a start time, or a duration time of the individual vector-specific movements.
12. The user interface device of claim 8, wherein the actuator interface module is further configured to cause the one or more drive voltages to be applied to the electrically deformable material sufficient to impart the individual vector-specific movements.
13. The user interface device of claim 8, wherein the electrically-deformable material comprises an electroactive polymer.
14. The user interface device of claim 8, wherein the electrically-deformable material comprises conductive material.
15. The user interface device of claim 8, wherein one or both of the direction or the magnitude of the individual vector-specific movements is further based at least in part on information other than the input, wherein the information other than the input comprises information associated with an orientation of the user interface device.
16. The user interface device of claim 8, wherein the information about the event is selected from a group consisting of event acceleration, event magnitude, event timing, and event direction.
17. A controller for a user interface device (UID) comprising:
an input receiver configured to receive an input from an associated device, the input including event-associated information based on a user’s interaction with the associated device;
a vector movement determiner configured to determine directions or magnitudes of at least two individual vector-specific movements based, at least in part, on the input, the at least two individual vector-specific movements to be applied to the UID in an overlapping way; and
an electrically-deformable material driver configured to impart the at least two individual vector-specific movement in the overlapping way via an electrically-deformable material associated with the UID.
18. The controller of claim 17, wherein the vector movement determiner is configured to determine the directions or magnitudes by:
utilizing the event-associated information to determine one or more drive parameters specifying the directions or the magnitudes; and
applying one or more drive voltages to the electrically-deformable material in accordance with the one or more drive parameters.
19. The controller of claim 17, wherein the directions or the magnitudes are further based at least in part on an orientation of the UID.
20. The controller of claim 17, wherein the vector movement determiner is configured to determine the directions or magnitudes by determining at least three individual vector-specific movements, and wherein the electrically-deformable material driver is configured to impart the at least two individual vector-specific movement in the overlapping way by overlapping at least three of the individual vector-specific movements.