Electronic device

Abstract

An electronic device includes a first body, a second body pivotally connected to the first body and having a first screen, a third body, a second screen, and a driving module. The third body is slidably disposed on the back side of the first screen. The second screen is pivotally disposed on the third body to slide synchronously with the third body. The driving module is disposed on the back side of the first screen and is used to drive the third body to slide and switch between a first mode and a second mode relative to the second body. In the first mode, the second screen is concealed on the back side of the first screen along with the third body. In the second mode, the second screen slides synchronously with the third body and moves out entirely from the side of the second body, causing the second screen to be placed side by side with the first screen, while the second screen rotates relative to the third body, causing the display surface of the second screen to tilt relative to the display surface of the first screen.

Description

Technical Field

[0001] This invention relates to an electronic device, and more particularly to an electronic device employing a multi-screen design. Prior Technology

[0002] Most common electronic devices such as laptops, tablets, and smartphones use a single-screen design. With multiple windows open simultaneously within this limited display area, overlapping and mutual obscuring can easily occur, forcing users to frequently zoom and drag to rearrange them. Furthermore, text, images, or other content within these windows may be excessively shrunk, making them difficult to read, recognize, or operate. Summary of the Invention

[0003] This invention provides an electronic device that helps improve the user experience when reading, recognizing, or operating work windows.

[0004] This invention proposes an electronic device, comprising a first body, a second body pivotally connected to the first body and having a first screen, a third body screen, a second screen, and a driving module. The first screen has a display surface and a back side opposite the display surface. The third body is slidably disposed on the back side of the first screen. The second screen is pivotally disposed on the third body to slide synchronously with the third body. The driving module is disposed on the back side of the first screen to drive the third body to slide and switch between a first mode and a second mode relative to the second body. In the first mode, the second screen is concealed on the back side of the first screen along with the third body. In the second mode, the second screen slides synchronously with the third body and moves out entirely from the side of the second body, causing the second screen to be placed side-by-side with the first screen, while the second screen rotates relative to the third body, causing the display surface of the second screen to tilt relative to the display surface of the first screen.

[0005] In one embodiment of the present invention, the electronic device further includes at least one control lever. The control lever is pivotally mounted on a third body and has opposing first and second ends. The second body has at least one protrusion extending beyond the back side of the first screen, and the third body covers the protrusion. The first end is adapted to contact the protrusion, while the second end is pivotally connected to the second screen.

[0006] In one embodiment of the present invention, the control lever slides synchronously with the third body, and the protrusion is located on the sliding path of the first end. During the process of switching from the first mode to the second mode, the first end is pushed by the protrusion, causing the control lever to rotate as a whole, which in turn causes the second end to push the second screen to rotate relative to the third body.

[0007] In one embodiment of the present invention, the control lever includes a first lever portion having a first end and a second lever portion having a second end, and the connection between the first lever portion and the second lever portion is a pivot point pivotally mounted on the third body.

[0008] In one embodiment of the present invention, the second rod portion is deflected relative to the first rod portion.

[0009] In one embodiment of the present invention, the second rod portion and the first rod portion are separated by an obtuse angle.

[0010] In one embodiment of the present invention, the length of the second rod portion is greater than the length of the first rod portion.

[0011] In one embodiment of the present invention, the drive module includes a motor, a drive gear, and a drive rack. The motor is disposed on the second body. The drive gear is pivotally disposed on the back side of the first screen and coupled to the motor. The drive rack is fixed to the third body and coupled to the drive gear.

[0012] In one embodiment of the present invention, the aforementioned electronic device further includes an auxiliary sliding module, which is located on the same side of the drive module alongside the control lever. The auxiliary sliding module includes an auxiliary gear pivotally mounted on the back side of the first screen and an auxiliary rack fixed to the third body, with the auxiliary rack coupled to the auxiliary gear.

[0013] In one embodiment of the present invention, the auxiliary rack described above is parallel to the drive rack.

[0014] In one embodiment of the present invention, there are two control levers, which are arranged side by side on the same side of the drive module. There are also two protrusions, with one protrusion corresponding to the sliding path of the first end of each control lever.

[0015] In one embodiment of the present invention, the aforementioned auxiliary sliding module is located between two control levers.

[0016] In one embodiment of the present invention, the first body further has a recessed space located on the back side of the first screen, and the protrusion is located within the recessed space. The second screen is adapted to be housed within the recessed space along with the third body, or to be moved out of the recessed space as the third body slides.

[0017] In one embodiment of the present invention, the third body has an internal space for accommodating a second screen and a first opening communicating with the internal space, and the second screen is adapted to be moved out of the internal space through the first opening.

[0018] In one embodiment of the present invention, the third body further has a second opening communicating with the internal space, and at least a portion of the protrusion and at least a portion of the first end of the control rod are located within the second opening.

[0019] Based on the above, by opening the second screen relative to the first screen, different work windows can be assigned to different screens for display, thereby preventing work windows from overlapping and obscuring each other. This not only helps to reduce the number of steps required to manually zoom and drag work windows, but also helps to improve the user experience when reading, identifying or operating work windows.

[0020] To make the above features and advantages of the present invention more apparent and understandable, specific embodiments are described below in conjunction with the accompanying drawings for detailed explanation. Simple Explanation of the Diagram

[0021] Figures 1A to 1C are schematic diagrams illustrating the switching between a first mode and a second mode of an electronic device according to an embodiment of the present invention. Figures 2A to 2C are enlarged rear view diagrams of the electronic devices corresponding to Figures 1A to 1C, respectively. Figures 3A to 3C are enlarged top views of the electronic devices corresponding to Figures 1A to 1C, respectively. Figure 4 is a schematic flowchart of the display control of the working window of an electronic device applied to an embodiment of the present invention. Implementation

[0022] Figures 1A to 1C are schematic diagrams illustrating the switching between a first mode and a second mode of an electronic device according to an embodiment of the present invention. Referring to Figures 1A to 1C, in this embodiment, the electronic device 100 may be a notebook computer and includes a first body 110, a second body 120, a third body 130, and a second screen 140. The second body 120 is pivotally connected to the first body 110 and has a first screen 121. The first screen 121 has a display surface 1211 and a back side 1212 opposite to the display surface 1211, wherein the third body 130 is slidably disposed on the back side 1212 of the first screen 121, and the second screen 140 is pivotally disposed on the third body 130.

[0023] For example, the first screen 121 can be used as the main screen, and the second screen 140 can be used as an auxiliary screen. In addition, the size of the second screen 140 is smaller than the size of the first screen 121.

[0024] In the first mode shown in Figure 1A, the second screen 140 is concealed on the back side 1212 of the first screen 121 along with the third body 130, and the side of the third body 130 can be aligned with the side side 1202 of the second body 120 to maintain the simplicity and aesthetics of the overall appearance.

[0025] During the transition from the first mode shown in Figure 1A to the second mode shown in Figure 1C, the second screen 140 can slide synchronously with the third body 130 relative to the second body 120. Furthermore, as the third body 130 gradually slides outward from the side 1202 of the second body 120, in the state shown in Figure 1B, the second screen 140 is still blocked by the back side 1212 of the first screen 121, thus temporarily preventing it from rotating relative to the third body 130.

[0026] When the second screen 140 is completely removed from the side 1202 of the second body 120, the second screen 140 is no longer blocked by the back side 1212 of the first screen 121, so that it can automatically rotate relative to the third body 130, causing the second screen 140 to be placed side by side with the first screen 121, so as to switch to the second mode shown in FIG1C.

[0027] In the second mode shown in Figure 1C, the second screen 140 is adjacent to the side 1202 of the second body 120, and the entire display surface 141 of the second screen 140 is exposed outside the second body 120, so as to be side by side with the display surface 1211 of the first screen 121.

[0028] Figures 2A to 2C are enlarged rear view diagrams of the electronic device corresponding to Figures 1A to 1C. To clearly show the internal structure configuration, the bottom of the second body 120 and the third body 130 are drawn with dashed lines. Referring to Figures 2A to 2C, in this embodiment, the electronic device 100 further includes a drive module 150 and two control levers 160, wherein the drive module 150 is disposed on the back side 1212 of the first screen 121 and is generally located at the bottom of the second body 120.

[0029] The drive module 150 is used to drive the third body 130 to slide relative to the second body 120. It not only provides the power required for the third body 130 to switch between the first and second modes, but also positions and guides the third body 130 to improve the stability and reliability of the sliding motion. Specifically, the drive module 150 includes a motor 151, a drive gear 152, and a drive rack 153. The motor 151 is disposed on the second body 120 and can be a servo motor or other type of motor. The drive gear 152 is pivotally mounted on the back side 1212 of the first screen 121 and coupled to the motor 151.

[0030] On the other hand, the drive rack 153 is fixed to the third body 130 and coupled to the drive gear 152. During the transition from the first mode shown in FIG2A to the second mode shown in FIG2C, the motor 151 drives the drive gear 152 to rotate, and the drive gear 152 drives the drive rack 153 to slide along the first direction D1. At the same time, the drive rack 153 drives the third body 130 to slide synchronously along the first direction D1, so that the second screen 140, which slides synchronously with the third body 130, moves out entirely from the side 1202 of the second body 120.

[0031] Conversely, during the transition from the second mode shown in Figure 2C to the first mode shown in Figure 2A, the motor 151 drives the drive gear 152 to reverse, and the drive gear 152 drives the drive rack 153 to slide along the second direction D2, which is opposite to the first direction D1. Simultaneously, the drive rack 153 drives the third body 130 to slide synchronously along the second direction D2, causing the second screen 140, which slides synchronously with the third body 130, to move back to the back side 1212 of the first screen 121. Finally, the third body 130 and the second screen 140 are completely concealed on the back side 1212 of the first screen 121, as shown in Figures 1A and 2A.

[0032] For example, the output shaft of motor 151 is fitted with a helical gear or a spur gear, which meshes with drive gear 152. Accordingly, drive gear 152 can be a helical gear or a spur gear, depending on the type of gear fitted to the output shaft of motor 151. In addition, drive rack 153 can be a helical rack or a spur rack, depending on the type of gear used in drive gear 152.

[0033] In addition to using a motor 151, a drive gear 152, and a drive rack 153 as the drive module 150, other examples of drive modules may use different types of linear guide rails, and the present invention does not limit this.

[0034] Figures 3A to 3C are enlarged top views of the electronic devices corresponding to Figures 1A to 1C. To clearly show the internal structure, the third body 130 is drawn with dashed lines, and the auxiliary gear 171 and auxiliary rack 172 are omitted. Referring to Figures 2A and 3A, in this embodiment, two control levers 160 are arranged side by side on the same side of the drive module 150, and the second body 120 has two protrusions 1201 protruding from the back side 1212 of the first screen 121. In detail, the third body 130 covers the two protrusions 1201, and the two protrusions 1201 respectively cooperate with the two control levers 160, for example, in a one-to-one configuration.

[0035] In other examples, the number of sets of interoperating levers and protrusions can be increased or decreased as appropriate, for example, by configuring only one set of levers and protrusions, or by configuring three or more sets of levers and protrusions.

[0036] Please refer to Figures 2A to 2C or Figures 3A to 3C. In this embodiment, two control levers 160 are pivotally mounted on the third body 130 to slide synchronously with the third body 130. Specifically, each control lever 160 has a first end 1601 and a second end 1602, wherein each protrusion 1201 is located on the sliding path of the first end 1601 of the corresponding control lever 160, and may fall at the end of the sliding stroke of the first end 1601, as shown in Figures 2C and 3C.

[0037] During the transition from the first mode shown in Figure 2A (or Figure 3A) to the second mode shown in Figure 2C (or Figure 3C), the second screen 140 gradually slides outward from the side 1202 of the second body 120 until the second screen 140 is completely removed from the side 1202 of the second body 120. The second screen 140 is no longer obstructed by the back side 1212 of the first screen 121. At the same time, the first end 1601 of each control lever 160 slides to the end of its sliding stroke and contacts the corresponding protrusion 1201. The first end 1601 of each control lever 160 is pushed by the corresponding protrusion 1201, causing the control lever 160 to rotate as a whole. The second end 1602 pushes the second screen 140 to rotate relative to the third body 130, causing the second screen 140 to be placed side by side with the first screen 121.

[0038] In the second mode shown in Figures 1C and 3C, the entire display surface 141 of the second screen 140 is exposed outside the second body 120 and is tilted relative to the display surface 1211 of the first screen 121.

[0039] Please refer to Figures 3A to 3C. In this embodiment, each control lever 160 includes a first lever portion 161 having a first end 1601 and a second lever portion 162 having a second end 1602. The connection between the first lever portion 161 and the second lever portion 162 is a pivot point 163 pivotally mounted on the third body 130. On the other hand, the first lever portion 161 is tilted relative to the second lever portion 162. During the sliding process of the first end 1601 toward the protrusion 1201, the first end 1601 can maintain sliding contact with the back side 1212 of the display surface 1211, and the second end 1602 is spaced apart from the back side 1212 of the display surface 1211. Until the first end 1601 contacts the protrusion 1201, the first end 1601 is pushed by the corresponding protrusion 1201 to drive the second end 1602 to rotate toward the back side 1212 of the display surface 1211, but the second end 1602 still does not make contact with the back side 1212 of the display surface 1211.

[0040] To meet the design requirements of a thinner profile, an obtuse angle A is formed between the first rod 161 and the second rod 162 within the limited configuration space. Furthermore, the distance from the first end 1601 to the rotation fulcrum 163 is equal to the length of the first rod 161, and the distance from the second end 1602 to the rotation fulcrum 163 is equal to the length of the second rod 162. For example, the length of the second rod 162 is set to be greater than the length of the first rod 161.

[0041] Please refer to Figures 1A to 1C or Figures 3A to 3C. In this embodiment, the second body 120 further has a recessed space 1203 located on the back side 1212 of the first screen 121, and two protrusions 1201 are located within the recessed space 1203. The second screen 140 is adapted to be housed within the recessed space 1203 along with the third body 130, or to be moved out of the recessed space 1203 as the third body 130 slides.

[0042] As shown in Figure 3A, the third body 130 has an internal space 131 and a first opening 132. The internal space 131 is used to house the second screen 140, and the first opening 132 connects to the internal space 131. In the first mode shown in Figure 3A, the first opening 132 is covered by the back side 1212 of the first screen 121. As the third body 130 gradually slides outward from the side 1202 of the second body 120, the degree to which the first opening 132 is exposed gradually increases, as shown in Figures 1B and 3B. When the second screen 140 is completely removed from the side 1202 of the second body 120, the first opening 132 is completely exposed, and the second screen 140 can be moved out of the internal space 131 through the first opening 132, as shown in Figures 1C and 3C. That is, the opening area of ​​the first opening 132 is larger than the surface area of ​​the display surface 141 of the second screen 140.

[0043] As shown in Figure 3A, the third body 130 also has a second opening 133 communicating with the internal space 131, wherein the second opening 133 is arranged side by side with the first opening 132, and at least a portion of the protrusion 1201 and at least a portion of the first end 1601 of the control lever 160 are located within the second opening 133. As shown in Figures 3A to 3C, during the process of the first end 1601 of the control lever 160 sliding toward the protrusion 1201, the position of the protrusion 1201 within the second opening 133 moves from the side closer to the first opening 132 to the side farther away from the first opening 132.

[0044] Referring to Figures 3A to 3C, the opposite sides of the second screen 140 are pivotally connected to the third body 130 and the second end 1602 of the control lever 160, respectively. For example, a first spring or a group of repulsive magnets may be provided at the pivot point between the second screen 140 and the second end 1602 of the control lever 160. The two ends of the first spring may respectively contact the second screen 140 and the third body 130, and may be a torsion spring or a compression spring. In addition, the groups of repulsive magnets may be respectively provided on the second screen 140 and the third body 130.

[0045] Before the second screen 140 is completely removed from the side 1202 of the second body 120, it is still blocked by the back side 1212 of the first screen 121, which prevents the spring force of the first spring or the magnetic repulsion force of the repulsive magnet group from working to rotate the second screen 140 relative to the third body 130. When the second screen 140 is completely removed from the side 1202 of the second body 120, it is no longer blocked by the back side 1212 of the first screen 121. The spring force of the first spring or the magnetic repulsion force of the repulsive magnet group can then rotate the second screen 140 relative to the third body 130, allowing the second screen 140 to move out of the internal space 131 through the first opening 132.

[0046] For example, a second spring may be provided at the pivot point between the second screen 140 and the third body 130, wherein the two ends of the second spring can respectively contact the second screen 140 and the third body 130, and the second spring may be a torsion spring. In the second mode shown in FIG3C, because the first end 1601 of the control lever 160 contacts the protrusion 1201, and the elastic force of the first spring or the magnetic repulsion force of the repulsive magnet group applies a stable outward pushing force to the second screen 140, at least a portion of the second screen 140 is kept outside the internal space 131, or the display surface 141 of the second screen 140 is kept tilted relative to the display surface 1211 of the first screen 121. At the same time, the second spring undergoes elastic deformation and stores elastic force capable of bringing the second screen 140 back into the internal space 131.

[0047] During the transition from the second mode shown in Figure 3C to the first mode shown in Figure 3A, the third body 130 slides along the second direction D2, causing the first end 1601 of the control lever 160 to separate from the protrusion 1201. Because the elastic force of the second spring is greater than that of the first spring or the magnetic repulsion of the repulsive magnet assembly, after the first end 1601 of the control lever 160 separates from the protrusion 1201, the second spring can drive the second screen 140 back into the internal space 131 via the first opening 132. After the second screen 140 is completely retracted into the internal space 131, the second screen 140 can synchronously move back to the back side 1212 of the first screen 121 along with the third body 130. Finally, the third body 130 and the second screen 140 are completely concealed on the back side 1212 of the first screen 121, as shown in Figure 3A.

[0048] Referring to Figure 2A, in this embodiment, the electronic device 100 further includes an auxiliary sliding module 170, wherein two control levers 160 and the auxiliary sliding module 170 are arranged side by side on the same side of the drive module 150, and the auxiliary sliding module 170 is located between the two control levers 160. Specifically, the auxiliary sliding module 170 includes an auxiliary gear 171 pivotally mounted on the back side 1212 of the first screen 121 and an auxiliary rack 172 fixed to the third body 130, wherein the auxiliary rack 172 is coupled to the auxiliary gear 171 and is parallel to the drive rack 153.

[0049] As shown in Figures 2A to 2C, the auxiliary sliding module 170 can position and guide the third body 130 to improve the stability and reliability of the sliding.

[0050] Figure 4 is a flowchart illustrating the display control of a working window in an electronic device according to an embodiment of the present invention. Referring to Figures 1A to 1C and Figure 4, when a user opens a new working window, step S101 is executed first to determine whether the opened working window belongs to a predefined group. Specifically, the predefined groups can be created by the user or automatically created by an artificial intelligence model after analysis based on the user's operating habits.

[0051] Next, if the opened work window does not belong to a predefined group, step S102 is executed to display the opened work window on the first screen 121. Conversely, if the opened work window belongs to a predefined group, step S103 is executed to determine whether the second screen 140 is open. Then, if the second screen 140 is open, step S104 is executed to determine whether the size of the opened work window or the openness of the second screen 140 needs to be adjusted. If it is determined that the second screen 140 is not open, step S105 is executed first to open the second screen 140, and then step S104 is executed.

[0052] Next, if any of the following conditions apply: the working window is too large and the second screen 140 is fully open; the working window is too large and the second screen 140 is not fully open; the working window is too small and the second screen 140 is fully open; or the working window is too small and the second screen 140 is fully open, then step S106 is executed. In step S106, based on different judgment results, the size of the working window is appropriately reduced, the opening degree of the second screen 140 is increased, the size of the working window is increased, or the opening degree of the second screen 140 is reduced.

[0053] After adjusting the size of the working window to match the opening degree of the second screen 140, step S107 is executed to display the working window to be opened on the second screen 140. Alternatively, if it is determined in step S104 that the size of the working window matches the opening degree of the second screen 140, then step S107 is executed directly to display the working window to be opened on the second screen 140.

[0054] In summary, by opening the second screen relative to the first screen, different work windows can be assigned to different screens for display, thus preventing work windows from overlapping and obscuring each other. This not only helps reduce the number of manual scaling and dragging operations for work windows but also improves the user experience when reading, identifying, or operating work windows. Furthermore, in terms of timing, it is first determined whether the opened work window belongs to a predefined group. If so, the second screen is opened relative to the first screen, and the work window is displayed on the second screen. Alternatively, the second screen can be opened relative to the first screen first, and then automatically displayed on the second screen when a work window within a predefined group is opened.

[0055] Although the present invention has been disclosed above by way of embodiments, it is not intended to limit the present invention. Anyone skilled in the art can make some modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

[0056] 100: Electronic devices 110: First Machine 120: Second Unit 1201: Protrusion 1202: Side 1203: Recessed Space 121: First Screen 1211, 141: Display surface 1212: Dorsal side 130: The Third Machine 131: Interior Space 132: First Opening 133: Second opening 140: Second Screen 150: Drive Module 151: Motor 152: Drive gear 153: Drive rack 160: Control lever 1601: First End 1602: Second end 161: First section of the pole 162: Second part of the rod 163: Rotation pivot 170: Auxiliary sliding module 171: Auxiliary Gear 172: Auxiliary rack A: Obtuse angle D1: First Direction D2: Second Direction S101~S107: Steps

Claims

1. An electronic device comprising: First body; A second body is pivotally connected to the first body and has a first screen, wherein the first screen has a display surface and a back side opposite to the display surface; a third body is slidably disposed on the back side of the first screen; a second screen is pivotally disposed on the third body to slide synchronously with the third body; and a drive module is disposed on the back side of the first screen to drive the third body to slide and switch between a first mode and a second mode relative to the second body. In the first mode, the second screen is concealed on the back side of the first screen along with the third body. In the second mode, the second screen slides synchronously with the third body and moves out entirely from the side of the second body, causing the second screen to be placed side by side with the first screen. At the same time, the second screen rotates relative to the third body, causing the display surface of the second screen to tilt relative to the display surface of the first screen.

2. The electronic device as claimed in claim 1, further comprising: At least one control lever is pivotally mounted on the third body and has opposing first and second ends, wherein the second body has at least one protrusion protruding from the back side of the first screen, and the third body covers the at least one protrusion, the first end being adapted to contact the at least one protrusion, and the second end being pivotally connected to the second screen.

3. The electronic device as claimed in claim 2, wherein the at least one control lever slides synchronously with the third body, and the at least one protrusion is located on the sliding path of the first end. During the process of switching from the first mode to the second mode, the first end is pushed by the at least one protrusion, causing the at least one control lever to rotate as a whole, thereby causing the second end to push the second screen to rotate relative to the third body.

4. The electronic device as claimed in claim 2, wherein the control lever includes a first lever portion having the first end and a second lever portion having the second end, and the connection between the first lever portion and the second lever portion is a pivot point pivotally mounted on the third body.

5. The electronic device as claimed in claim 4, wherein the second lever is deflected relative to the first lever.

6. The electronic device as claimed in claim 4, wherein the second rod portion and the first rod portion are separated by an obtuse angle.

7. The electronic device as claimed in claim 4, wherein the length of the second rod is greater than the length of the first rod.

8. The electronic device as claimed in claim 2, wherein the drive module comprises: The motor is located in the second body; A drive gear is pivotally mounted on the back side of the first screen and coupled to the motor; And a drive rack, fixed to the third body and coupled to the drive gear.

9. The electronic device as claimed in claim 8, further comprising: An auxiliary sliding module is located on the same side of the drive module, alongside the at least one control lever. The auxiliary sliding module includes an auxiliary gear pivotally mounted on the back side of the first screen and an auxiliary rack fixed to the third body, with the auxiliary rack coupled to the auxiliary gear.

10. The electronic device as claimed in claim 9, wherein the auxiliary rack is parallel to the drive rack.

11. The electronic device as claimed in claim 2, wherein the number of the at least one control lever is two, and the two control levers are arranged side by side on the same side of the drive module, the number of the at least one protrusion is two, and each of the control levers has a corresponding protrusion on the sliding path of the first end.

12. The electronic device as claimed in claim 11, further comprising: An auxiliary sliding module is located between the two control levers. The auxiliary sliding module includes an auxiliary gear pivotally mounted on the back side of the first screen and an auxiliary rack fixed to the third body, and the auxiliary rack is coupled to the auxiliary gear.

13. The electronic device of claim 2, wherein the first body further has a recessed space on the back side of the first screen, and the at least one protrusion is located within the recessed space, and the second screen is adapted to be housed within the recessed space with the third body, or to be moved out of the recessed space with the sliding of the third body.

14. The electronic device as claimed in claim 2, wherein the third body has an internal space for receiving the second screen and a first opening communicating with the internal space, and the second screen is adapted to be removed from the internal space through the first opening.

15. The electronic device of claim 14, wherein the third body further has a second opening communicating with the interior space, and at least a portion of the at least one protrusion and at least a portion of the first end of the at least one control lever are located within the second opening.

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