Control key assembly

Abstract

A control key assembly including a button cover and a weight member is provided. The button cover has a first top surface, a bottom surface and a first assembling structure, wherein the first assembling structure is located on the bottom surface. The weight member has an arc surface and a second assembling structure, the arc surface and the second assembling structure are located on opposite sides of the weight member, wherein the second assembling structure is assembled with the first assembling structure, and the weight of the weight member is greater than the weight of the button cover.

Claims

1. A control key assembly comprising: a button cover having a first top surface, a bottom surface, and a first assembling structure, wherein the first assembling structure is located on the bottom surface; and a weight member having an arc surface and a second assembling structure, the arc surface and the second assembling structure being located on opposite sides of the weight member, wherein the second assembly is assembled to the first assembling structure, and the weight of the weight member is greater than the weight of the button cover, wherein a virtual ball is formed by the weight member, the virtual ball having a virtual diameter, and the button cover has the first top surface, the weight member has a second top surface, the second assembling structure is disposed on the second top surface, and a diameter of the second top surface is smaller than the virtual diameter; wherein the button cover further has a plurality of sticks disposed on the bottom surface and surrounding the first assembling structure.

2. The control key assembly of claim 1, further comprising a circuit board disposed toward the bottom surface of the button cover, wherein the weight member is located between the button cover and the circuit board, and the arc surface contacts the circuit board.

3. The control key assembly of claim 1, wherein the circuit board has a plurality of dome switches, and the sticks are disposed corresponding to the dome switches.

4. The control key assembly of claim 1, wherein one of the first assembling structure and the second assembling structure is a groove, and the other one of the first assembling structure and the second assembling structure is a stud, and the stud and the groove are fitted to each other.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification. The drawings illustrate exemplary embodiments of the disclosure and, together with the description, serve to explain the principles of the disclosure.

(2) FIG. 1 is a schematic view illustrating a control key assembly of the present invention.

(3) FIG. 2 is a schematic view illustrating the dismantling of the button cover and the weight member of the control key assembly of FIG.1.

(4) FIG. 3 is a schematic view illustrating the control key assembly along the line A-A in FIG. 1.

(5) FIG. 4 is a schematic view illustrating a user pressing the button cover.

(6) FIG. 5 is a schematic view illustrating a virtual circle formed by the weight member.

DESCRIPTION OF THE EMBODIMENTS

(7) FIG. 1 is a schematic view illustrating a control key assembly of the present invention;

(8) FIG. 2 is a schematic view illustrating the dismantling of the button cover and the weight member of the control key assembly of FIG.1, wherein FIG. 2 and FIG. 1 are different views for illustrating details with a side cover of the cover is omitted; and FIG. 3 is a schematic view illustrating the control key assembly along the line A-A in FIG. 1.

(9) Referring to FIG. 1, FIG. 2 and FIG. 3 simultaneously, the control key assembly 100 of the embodiment includes a button cover 110, a circuit board 120, and a weight member 130. The button cover 110 has a first top surface 112, a bottom surface 114, and a first assembling structure 116, wherein the first top surface 112 and the bottom surface 114 are located on opposite sides of the button cover 110, and the first assembling structure 116 is located on the bottom surface 114. The circuit board 120 is disposed toward the bottom surface 114 of the button cover 110. The weight member 130 is located between the button cover 110 and the circuit board 120. The weight member 130 has an arc surface 132 and a second assembling structure 134. The arc surface 132 and the second assembling structure 134 are located on opposite sides of the weight member 130. The second assembling structure 134 is used to be assembled to the first assembling structure 116, and the weight of the weight member 130 is greater than the weight of the button cover 110.

(10) In this embodiment, the material of the weight member 130 may be metal, and the material of the button cover 110 may be plastic. The button cover 110 is further formed to have a hollow cavity for emphasizing the weight difference between the weight member 130, so as to achieve the purpose that maintaining the control key assembly 100 to be in a steady state by balancing the weight member 130.

(11) Moreover, the button cover 110 in the present embodiment is in the form of a cross key, which can be used to guide the moving direction of a specified person or character; however, the form of the button cover 110 is not limited thereto, and the button cover 110 can also be in a linear shape or be a round key, which designed according to actual requirements.

(12) The weight member 130 has a second top surface 136, and the second assembling structure 134 is disposed on the second top surface 136. In the present embodiment, the first assembling structure 116 is a groove; or, more specifically, the first assembling structure 116 is a hollow cylinder, and the second assembling structure 134 is a stud, which is conformal to the first assembling structure 116, and the stud is used to fit into the groove.

(13) In addition, the button cover 110 further has a plurality of stickers 118 disposed on the bottom surface 114 and surrounding the first assembling structure 116. Since the button cover 110 in this embodiment is in the form of a cross key, the stickers 118 may set to four. Correspondingly, the circuit board 120 is provided with four dome switches 122, and the positions of the stickers 118 are corresponding to the positions of the dome switches 122.

(14) In the embodiment of FIG. 3, the arc surface 132 of the weight member 130 directly contacts a third top surface 120a of the circuit board 120. Since the arc surface 132 of the weight member 130 directly contacts the third top surface 120a of the circuit board 120, the center of gravity of the control key assembly 100 is lowered by the arrangement of the weight member 130. In a force balance state of the control key assembly 100, the arc surface 132 contacts the third top surface 120a of the board 120 in a manner of point, four stickers 118 spaced from the third top surface 120a of the circuit board 120 in a same distance while four stickers 118 do not contact with corresponding dome switches 122 by the arrangement of the arc surface 132 of the weight member 130.

(15) The user presses on one of the four ends of the cross key for using the control key assembly 100 to direct the direction of movement of a specified person or character.

(16) FIG. 4 is a schematic view illustrating the user pressing the button cover. Referring to FIG. 4, as the user applying force on the button cover 110, the button cover 110 takes the contact point of the arc surface 132 of the weight member 130 and the third top surface 120a of the circuit board 120 as a center of rotation, and the end that is pressed orienting towards the circuit board 120 and is inclined downward, and the other unpressurized ends are inclined upward in a direction away from the circuit board 120, and the sticker 118 corresponding to the pressed end presses the dome switch 122 to conduct electricity and emits telecommunications to guide the direction of movement of a specified person or character.

(17) In particular, the weight member 130 in this embodiment is not a semi-spherical ball. In detail, when a virtual ball having a complete circular shape is formed on the basis of the arc surface 132 of the weight member 130, the diameter R1 of the second top surface 136 is smaller than the virtual diameter R2 of the virtual ball, as shown in FIG. 5. By designing the weight member 130 in a form other than a semi-spherical ball, the center of gravity of the weight member 130 is maintained at a relatively low position of the weight member 130.

(18) Therefore, after the user stops applying pressure, since the center of gravity of the control key assembly 100 falls at a lower position and the weight 130 contacts the third top surface 120a of the circuit board 120 by the arc surface 132, the weight member 130 drives the button cover 110 to return to the original position with self-adjusting of the weight member 130 to the force balance state.

(19) In summary, in the control key assembly of the present invention, the center of gravity of the control key assembly is lowered by the arrangement of the weight member, so that after the control key assembly is disturbed by an external force and deviates from the equilibrium position, the button cover is driven by the weight through the arc surface of the weight member for returning to the original position in a stable balance manner, and raising feedback after the pressing by the stable balance recovery.

(20) It will be apparent to those skilled in the art that various modifications and variations can be made to the disclosed embodiments without departing from the scope or spirit of the disclosure. In view of the foregoing, it is intended that the disclosure covers modifications and variations provided that they fall within the scope of the following claims and their equivalents.