CN212064177U

CN212064177U - Terminal equipment

Info

Publication number: CN212064177U
Application number: CN202021172885.0U
Authority: CN
Inventors: 莫桂荣
Original assignee: Guangdong Genius Technology Co Ltd
Current assignee: Guangdong Genius Technology Co Ltd
Priority date: 2020-06-22
Filing date: 2020-06-22
Publication date: 2020-12-01
Anticipated expiration: 2030-06-22

Abstract

The utility model relates to a terminal equipment technical field specifically discloses a terminal equipment, including equipment body and camera device, the equipment body has first interface unit, and camera device includes the support, the rotatable second interface unit who locates camera subassembly, the linking bridge of support, and second interface unit is used for dismantling with first interface unit and is connected and make camera device can dismantle the linking device body, and the camera subassembly is through rotating the shooting angle in order to change the camera subassembly for the support. The design mode that the camera device is arranged as an independent accessory is adopted, so that the volume and the weight of the terminal equipment can be reduced, and the whole terminal equipment is favorably developed to be light and thin; and because the shooting direction of the camera component is adjustable, the flexibility of the shooting function of the terminal equipment can be improved, so that different shooting requirements of users on different occasions and under different scenes can be met.

Description

Terminal equipment

Technical Field

The utility model relates to a terminal equipment technical field especially relates to a terminal equipment.

Background

In order to realize the comprehensive screen design of the terminal equipment, the camera assembly of the terminal equipment on the market is usually designed in a way that the lifting mechanism can be arranged in the terminal equipment in a lifting manner, and the camera assembly is lifted out of the equipment support to shoot when the camera assembly is required to be used. However, in the conventional design, since the lifting mechanism for lifting the camera module is integrated with the terminal device, the size and weight of the terminal device are increased, and the whole terminal device becomes thick and heavy.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a terminal device to realize terminal device's frivolousization.

In order to achieve the above object, an embodiment of the present invention provides a terminal device, including

The equipment comprises an equipment body, a first main board and a second main board, wherein the equipment body is provided with a first interface part; and

the camera device comprises a support, a camera assembly and a second interface part, wherein the camera assembly is rotatably arranged on the support, the second interface part is arranged on the support, and the second interface part is detachably connected with the first interface part so that the camera device is detachably connected with the equipment body;

the camera assembly changes the shooting angle of the camera assembly by rotating relative to the bracket.

As an optional implementation manner, in the embodiment of the present invention, the first interface component and the second interface component are connected by a snap fit connection, a plug fit connection, a magnetic attraction fit connection, or a screw fit connection.

As an optional implementation manner, in the embodiment of the present invention, the first interface component may be electrically conductive and electrically connected to the first main board, the second interface component may be electrically conductive and electrically connected to the camera assembly, and the second interface component is configured to enable the camera assembly to be electrically connected to the first main board when connected to the first interface component.

As an alternative implementation, in the embodiment of the present invention, the first interface component is one of a socket and a plug, and the second interface component is the other of the plug and the socket.

As an optional implementation manner, in the embodiment of the present invention, the first interface component is a USB socket, and the second interface component is a USB plug.

As an optional implementation manner, in the embodiment of the present invention, the support has an accommodating cavity, the accommodating cavity is provided with a second motherboard, a part of the second interface component is located outside the support and is used for being connected with the first interface component, another part of the second interface component extends into the accommodating cavity of the support and is electrically connected with the second motherboard, the camera component is located outside the support, and the camera component is electrically connected with the second motherboard.

As an optional implementation manner, in the embodiment of the present invention, the camera device further includes a flexible circuit board, a part of the flexible circuit board is located in the accommodating cavity of the bracket and electrically connected to the second main board, and another part of the flexible circuit board extends to the outside of the bracket and electrically connected to the camera assembly.

As an optional implementation manner, in the embodiment of the present invention, the camera assembly is connected to the first main board through wifi and/or bluetooth.

As an optional implementation manner, in an embodiment of the present invention, the end portion or the side portion of the apparatus body is provided with a first opening communicated with the inside of the apparatus body, and the first interface component is disposed in the first opening.

As an optional implementation manner, in an embodiment of the present invention, the camera assembly includes a camera and a housing having a second opening, the housing is rotatably disposed on the bracket, and the camera is disposed at the second opening.

As an optional implementation manner, in the embodiment of the present invention, two protruding portions with rotating connecting grooves are formed by extending two sides of the bracket upwards, the housing is provided with two rotating shafts, two rotating shafts are respectively rotatably disposed on two rotating connecting grooves of the protruding portions, and two rotating shafts are respectively rotatable relative to two rotating connecting grooves of the protruding portions to rotate the housing relative to the bracket.

As an optional implementation manner, in an embodiment of the present invention, a damping member is disposed between each of the rotating shafts and each of the rotating connecting grooves.

Compared with the prior art, the utility model discloses a terminal equipment has following beneficial effect:

the utility model discloses set up camera device into an independent accessory, camera device can assemble on the terminal equipment in order to realize camera device's shooting function or separate with terminal equipment. The design mode that the camera device is arranged as an independent accessory is adopted, so that the volume and the weight of the terminal equipment can be reduced, and the whole terminal equipment is favorably developed to be light and thin; and because the shooting direction of the camera component is adjustable, the flexibility of the shooting function of the terminal equipment can be improved, so that different shooting requirements of users on different occasions and under different scenes can be met.

In addition, the camera device and the terminal equipment are fixed on the terminal equipment in an inserting mode, the camera device is electrically connected with the terminal equipment, plug and play are realized, and the operation is convenient and fast.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a first schematic structural diagram of a terminal device according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram ii of the terminal device according to the embodiment of the present invention;

fig. 3 is a schematic structural diagram three of the terminal device according to the embodiment of the present invention;

fig. 4 is an exploded schematic view of a terminal device according to an embodiment of the present invention.

Icon: 1-an equipment body; 11-a first interface component; 12-a first motherboard; 13-a first opening; 2-a camera device; 21-a scaffold; 212-rotating connecting slot; 211-a boss; 213-a housing chamber; 11-a first interface component; 22-a camera assembly; 221-a housing; 221 a-second opening; 221 b-a spindle; 222-a camera; 223-glass cover plate; 224-double sided tape; 23-a second interface component; 24-a second motherboard; 25-a flexible circuit board; 26-damping member.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments, and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in the present invention can be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be mechanically connected or electrically connected; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, the terms "first," "second," and the like, are used primarily to distinguish one device, element, or component from another (the specific nature and configuration may be the same or different), and are not used to indicate or imply the relative importance or number of the indicated devices, elements, or components. "plurality" means two or more unless otherwise specified.

The technical solution of the present invention will be further described with reference to the following embodiments and the accompanying drawings.

Please refer to fig. 1 to 4 together, the utility model discloses a terminal device, this terminal device includes equipment body 1 and camera device 2, be equipped with first mainboard 12 in the equipment body 1, equipment body 1 has first interface unit 11, camera device 2 includes support 21, rotatable camera subassembly 22 of locating support 21, connect in the second interface unit 23 of support 21, second interface unit 23 is used for dismantling with first interface unit 11 and is connected and make camera device 2 can dismantle and connect in equipment body 1, camera subassembly 22 is through rotating the angle of shooing in order to change camera subassembly 22 for support 21. Fig. 1 is a schematic structural view of the camera 2 separated from the apparatus body 1; fig. 2 is a schematic structural view of the camera 2 connected to the apparatus body 1; fig. 3 is a schematic structural view of the camera device 2 connected to the apparatus body 1 and the camera assembly 22 rotated relative to the bracket 21; fig. 4 is an exploded view of the terminal device.

The terminal device of the scheme can be, but is not limited to, a family education machine, a learning tablet, a smart phone and other terminal devices, and is not limited herein. According to the scheme, the camera device 2 is arranged as an independent accessory, and the camera device 2 can be assembled on the terminal equipment to realize the shooting function of the camera device 2 or be separated from the terminal equipment. The design mode that the camera device 2 is arranged as an independent accessory is adopted, so that the volume and the weight of the terminal equipment can be reduced, and the whole terminal equipment is favorably developed to be light and thin; moreover, since the shooting direction of the camera assembly 22 is adjustable, the flexibility of the shooting function of the terminal equipment can be improved, so that different shooting requirements of users in different occasions and different scenes can be met.

In this embodiment, the camera device 2 is detachably connected to the apparatus body 1, which means that the user can quickly detach and mount the camera device 2 without using a detaching tool (such as a wrench, a screwdriver, a hammer, or a pincer). In order to realize the detachable connection between the camera device 2 and the apparatus body 1, the first interface component 11 and the second interface component 23 can be detachably connected through a snap fit connection, a plug fit connection, a magnetic attraction fit connection, a threaded fit connection, or the like.

Optionally, the first interface component 11 and the second interface component 23 are detachably connected in a manner of plug-in fit connection, and both the first interface component 11 and the second interface component 23 can be plug-in components. When the camera device 2 needs to be connected to the apparatus body 1, a force greater than the insertion force between the first interface part 11 and the second interface part 23 is applied to the camera device 2, so that the second interface part 23 is inserted into the first interface part 11, and the camera device 2 is fixed to the apparatus body 1. When the camera device 2 needs to be detached from the apparatus body 1, an external force greater than the insertion force between the first interface part 11 and the second interface part 23 is applied to the camera device 2, so that the camera device 2 can be detached from the apparatus body 1, and the assembly and disassembly are simple and convenient.

Wherein the first interface part 11 is one of a socket and a plug and the second interface part 23 is the other of a plug and a socket. For example, in consideration that the volume and weight of the image capturing device 2 are much smaller than those of the apparatus body 1, the present embodiment preferably adopts a design mode in which the first interface part 11 is a socket and the second interface part 23 is a plug, so that the image capturing device 2 can be better fixed to the apparatus body 1 when connected to the apparatus body 1. It is understood that the first interface member 11 may also be a plug and the second interface member 23 may also be a socket, which is not limited herein.

In some embodiments, after the camera device 2 is fixed to the apparatus body 1, the camera assembly 22 is connected to the first main board 12, a user can input a control command for the camera assembly 22 to the first main board 12 through inputting the control command on the apparatus body 1, and the camera assembly 22 realizes a shooting function under the control of the first main board 12. It will be appreciated that a separate control switch on the camera device 2 may be used to control the camera assembly 22 to perform the shooting function, in which case the camera assembly 22 may not be connected to the first main board 12, and is not limited herein.

Further, the connection between the camera assembly 22 and the first motherboard 12 may specifically include the electrical connection between the camera assembly 22 and the first motherboard 12, or the connection between the camera assembly 22 and the first motherboard 12 is performed in a wifi manner, or the connection between the camera assembly 22 and the first motherboard 12 is performed in a bluetooth manner, or the connection between the camera assembly 22 and the first motherboard 12 is implemented in any two of the three manners or in the three manners, so as to control the camera assembly 22 by the first motherboard 12. In the actual design, a suitable design mode may be selected according to the actual situation, and is not limited herein. The present embodiment is exemplified by a design manner of electrically connecting at least the camera assembly 22 and the first main board 12.

Optionally, the first interface component 11 may be electrically conductive and electrically connected to the first motherboard 12, the second interface component 23 may be electrically conductive and electrically connected to the camera assembly 22, and the second interface component 23 is configured to electrically connect the camera assembly 22 to the first motherboard 12 when connected to the first interface component 11. By adopting the design mode, the connection between the first interface part 11 and the second interface part 23 can realize the mechanical connection between the camera device 2 and the equipment body 1, and also can realize the electrical connection between the camera assembly 22 and the first main board 12, thereby simplifying the structural design of the camera device 2 and the equipment body 1. In addition, because the first interface component 11 is a socket, the second interface component 23 is a plug, and the first interface component 11 and the second interface component 23 are designed as a plug and a socket, the camera device 2 is fixed on the device body 1 and the camera assembly 22 is electrically connected with the device body 1 by plugging the plug and the socket, so that the plug and play function is realized, and the operation is convenient and fast.

Illustratively, the first interface part 11 is a USB socket, and the second interface part 23 is a USB plug, so that the first interface part 11 and the second interface part 23 can not only realize the electrical connection between the camera assembly 22 and the device body 1, but also realize the data transmission between the camera assembly 22 and the device body 1.

It is understood that the image capturing device 2 and the apparatus body 1 may further be provided with a connecting component for electrical connection, which is not limited herein, and in this embodiment, the first interface component 11 and the second interface component 23 are both conductive interface components, and the image capturing device 2 and the apparatus body 1 are exemplified by being electrically connected through the connection of the first interface component 11 and the second interface component 23.

In some embodiments, the first interface part 11 may be provided at an end or a side of the apparatus body 1, and when the first interface part 11 is provided at the end of the apparatus body 1, the image pickup device 2 is detachably connected to the end of the apparatus body 1; when the first interface member 11 is provided on the side of the apparatus body 1, the image pickup device 2 is detachably attached to the side of the apparatus body 1. From the above, the terminal device can be, but is not limited to, a family education machine, a learning tablet, a smart phone, and the like, and the camera device 2 is arranged on the top end of the device body 1, so that the arrangement position of the camera assembly 22 is close to the arrangement position of the camera assembly 22 in the conventional terminal device, and the use habit of the user is better adapted. Therefore, the first interface member 11 is preferably provided at the distal end of the apparatus body 1. It is understood that the first interface member 11 may be provided at a side portion of the apparatus body 1, which is not limited herein.

Further, after the image pickup device 2 is detached from the apparatus body 1, if the first interface 11 is directly contacted with the external environment, the first interface is easily damaged due to collision, the top end of the apparatus body 1 is provided with a first opening 13 communicated with the inside of the apparatus body 1, the first interface 11 is arranged in the first opening 13, and the second interface 23 extends into the first opening 13 and is connected with the first interface 11. By adopting the design mode, the first interface component 11 is hidden in the first opening 13 of the equipment body 1, so that the first interface component 11 can be prevented from directly contacting with an external environment, and the effect of protecting the first interface component 11 can be achieved.

Optionally, the first interface component 11 is integrated on the first main board 12, and with such a design, the integration level of the device body can be higher. It is to be understood that the first interface member 11 may also be provided separately, and is not limited thereto.

In some embodiments, the camera device 2 is provided with a second main board 24 for controlling the camera assembly 22, the second main board 24 is electrically connected to the second interface component 23, the camera assembly 22 is electrically connected to the second main board 24, when the second interface component 23 is connected to the first interface component 11, the first main board 12 sends a control instruction for the camera assembly 22, which is input by a user, to the second main board 24, and the camera assembly 22 realizes a shooting function under the control of the second main board 24.

Further, the bracket 21 has a receiving cavity 213, the second main board 24 is disposed in the receiving cavity 213 of the bracket 21, a portion of the second interface component 23 is located outside the bracket 21 and is used for connecting with the first interface component 11, another portion of the second interface component 23 extends into the receiving cavity 213 of the bracket 21 and is electrically connected with the second main board 24, the camera assembly 22 is located outside the bracket 21, and the camera assembly 22 is electrically connected with the second main board 24.

Furthermore, since the camera assembly 22 is rotatably disposed on the bracket 21, in order to prevent the electrical connection between the camera assembly 22 and the second main board 24 from being affected by the rotation of the camera assembly 22 relative to the bracket 21, the camera device 2 further includes a flexible circuit board 25, a portion of the flexible circuit board 25 is located in the receiving cavity 213 of the bracket 21 and electrically connected to the second main board 24, and another portion of the flexible circuit board 25 extends to the outside of the bracket 21 and electrically connected to the camera assembly 22. By adopting the design mode, since the flexible circuit board 25 is flexible, when the camera assembly 22 rotates relative to the bracket 21, the flexible circuit board 25 can deform along with the rotation of the camera assembly 22, so that a good connection state is maintained between the camera assembly 22 and the flexible circuit board 25, the camera assembly 22 and the flexible circuit board 25 are kept in a good electrical connection state, and a good electrical connection state is maintained between the camera assembly 22 and the second main board 24.

In some embodiments, the camera assembly 22 includes a housing 221 having a second opening 221a, and a camera 222 for performing a shooting function, wherein the housing 221 is rotatably disposed on the bracket 21, and the camera 222 is disposed in the second opening 221a and electrically connected to the flexible circuit board 25.

Further, in order to realize the rotatable connection between the housing 221 and the support 21, two protruding portions 211 having a rotation connecting groove 212 are formed by extending two sides of the support 21, the housing 221 is provided with two rotating shafts 221b, the two rotating shafts 221b are respectively rotatably disposed at the rotation connecting grooves 212 of the two protruding portions 211, and the two rotating shafts 221b are respectively rotatable relative to the rotation connecting grooves 212 of the two protruding portions 211 to rotate the housing 221 relative to the support 21.

In some embodiments, considering that the camera 222 is disposed in the second opening 221a of the housing 221, if the camera 222 directly contacts with the external environment, the convex lens of the camera 222 is easily abraded by friction with the external environment or damaged by impact, and the camera assembly 22 further includes a glass cover plate 223, where the glass cover plate 223 covers the second opening 221a to prevent the camera 222 from directly contacting with the external environment, so as to protect the camera 222.

The material of the glass cover plate 223 is glass with light transmission characteristics, such as lanthanide glass, optical glass, or ordinary glass, and in the actual design, a suitable design manner may be selected according to the actual situation, which is not limited in this embodiment.

Optionally, the glass cover 223 is adhered to the case 221 by a double-sided adhesive tape 224. Specifically, the double-sided tape 224 is a frame-shaped double-sided tape, and the double-sided tape 224 is adhered to the outer periphery of the second opening 221a of the casing 221.

The mode that this scheme adopted manual regulation preferably adjusts the turned angle of camera subassembly 22 for support 21 to the shooting angle of adjustment camera subassembly 22. In order to suspend the camera head assembly 22 at a certain angle when the camera head assembly 22 rotates on the bracket 21, a damping member 26 is disposed between each rotating shaft 221b and each rotating connecting groove 212, when the rotating force of the camera head assembly 22 applied by the user relative to the bracket 21 is greater than the damping force of the damping member 26, the camera head assembly 22 can rotate relative to the bracket 21, and when the rotating force of the camera head assembly 22 applied by the user relative to the bracket 21 is less than the damping force of the damping member 26 or the camera head assembly 22 is not subjected to an external force, the camera head assembly 22 and the bracket 21 are kept in a relatively static state. By adopting the design mode of manually adjusting the shooting angle of the camera assembly 22, a user can manually adjust the shooting angle according to the actual use condition, and the use flexibility is good.

It is understood that the driving component disposed on the camera device 2 can also be used to drive the camera assembly to rotate relative to the bracket 21, so as to adjust the shooting angle of the camera assembly 22, which is not limited herein.

Further, since the damping member 26 is disposed between the rotating shaft 221b and the rotating connecting groove 212, the damping member 26 is preferably a ring-shaped damping member 26, so that the damping member 26 can be completely filled between the rotating shaft 221b and the rotating connecting groove 212, thereby making the damping effect of the damping member 26 better. The damping member 26 is illustratively a rubber ring, and due to the softer material of the rubber ring, abrasion between the rotating shaft 221b and the rubber ring and between the rubber ring and the inner surface of the rotating connecting groove 212 when the rotating shaft 221b rotates relative to the rotating connecting groove 212 can be avoided.

It is understood that the damping member 26 may have other shapes and other materials, and is not limited thereto.

The embodiment of the utility model provides a pair of terminal equipment sets up camera device 2 into an independent accessory, but camera device 2 assembles on terminal equipment in order to realize camera device 2's shooting function or separate with terminal equipment. The design mode that the camera device 2 is arranged as an independent accessory is adopted, so that the volume and the weight of the terminal equipment can be reduced, and the whole terminal equipment is favorably developed to be light and thin; and because the shooting direction of the camera component is adjustable, the flexibility of the shooting function of the terminal equipment can be improved, so that different shooting requirements of users on different occasions and under different scenes can be met.

In addition, the first interface part 11 is arranged on the equipment body 1, the second interface part 23 is arranged on the camera device 2, and the mechanical connection between the camera device 2 and the equipment body 1 and the electrical connection between the camera assembly 22 and the equipment body 1 are realized through the first interface part 11 and the second interface part 23, so that the structural design of the camera device 2 and the equipment body 1 can be simplified.

Moreover, the first interface part 11 and the second interface part 23 are plugs and sockets, and the camera device 2 is fixed on the device body 1 and the camera assembly 22 is electrically connected with the device body 1 through the plugging of the plugs and the sockets, so that the plug and play function is realized, and the operation is convenient and fast.

The above detailed description is made on a terminal device disclosed in the embodiments of the present invention, and the principle and the implementation of the present invention are explained by applying a specific example, and the above description of the embodiments is only used to help understanding the terminal device of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.

Claims

1. A terminal device, comprising:

2. The terminal device of claim 1, wherein the first interface component and the second interface component are connected by a snap fit connection, a plug fit connection, a magnetic attraction fit connection, or a threaded fit connection.

3. The terminal device of claim 1, wherein the first interface unit is electrically conductive and electrically connected to the first motherboard, the second interface unit is electrically conductive and electrically connected to the camera assembly, and the second interface unit is configured to electrically connect the camera assembly to the first motherboard when connected to the first interface unit.

4. A terminal device according to claim 3, wherein the first interface part is one of a socket and a plug and the second interface part is the other of a plug and a socket.

5. A terminal device according to claim 4, wherein the first interface part is a USB socket and the second interface part is a USB plug.

6. The terminal device according to claim 3, wherein the cradle has a receiving cavity, a second motherboard is disposed in the receiving cavity, a part of the second interface unit is disposed outside the cradle and is used for connecting with the first interface unit, another part of the second interface unit extends into the receiving cavity of the cradle and is electrically connected with the second motherboard, the camera assembly is disposed outside the cradle and is electrically connected with the second motherboard.

7. The terminal device according to claim 6, wherein the camera device further comprises a flexible circuit board, a portion of the flexible circuit board is located in the receiving cavity of the bracket and electrically connected to the second main board, and another portion of the flexible circuit board extends out of the bracket and is electrically connected to the camera assembly.

8. The terminal device of claim 1, wherein the camera assembly is connected to the first motherboard via wifi and/or bluetooth.

9. The terminal device according to any one of claims 1 to 8, wherein a first opening communicating with an inside of the device body is provided at an end portion or a side portion of the device body, and the first interface member is provided in the first opening.

10. The terminal device according to any one of claims 1 to 8, wherein the camera assembly includes a camera and a housing having a second opening, the housing being rotatably disposed in the stand, and the camera being disposed in the second opening.

11. The terminal device of claim 10, wherein the two sides of the housing extend upward to form two protruding portions having rotating connecting slots, the housing has two rotating shafts, the two rotating shafts are respectively rotatably disposed at the rotating connecting slots of the two protruding portions, and the two rotating shafts are respectively rotatable relative to the rotating connecting slots of the two protruding portions to rotate the housing relative to the housing.

12. The terminal device of claim 11, wherein a damping member is disposed between each of said rotatable shafts and each of said rotatably coupled grooves.