阅读说明：本技术 手表 (Watch (watch) ) 是由 姚十洲 于 2021-08-19 设计创作，主要内容包括：本发明公开了一种手表,包括：表带,表带的一段为安装段,安装段上设有在厚度方向上贯通的安装孔；第一磁吸件,第一磁吸件设在安装段上；表盘,表盘与表带可分离,表盘可置于安装段上且对应安装孔设置,表盘上设有第二磁吸件,第二磁吸件与第一磁吸件相吸合以固定所述表盘。这种手表结构简单,方便表带拆卸,而且对手表的附加功能限制较少。(The invention discloses a watch, comprising: the watchband, a section of the watchband is the installation section, there is mounting hole that link up in the thickness direction on the installation section; the first magnetic attraction piece is arranged on the mounting section; the watch comprises a watch disc, wherein the watch disc and the watch band are separable, the watch disc can be arranged on the mounting section and is arranged corresponding to the mounting hole, a second magnetic piece is arranged on the watch disc, and the second magnetic piece is attracted with the first magnetic piece to fix the watch disc. The watch is simple in structure, the watchband is convenient to detach, and the additional function of the watch is less limited.)

1. A watch, comprising:

the watchband comprises a watchband, wherein one section of the watchband is an installation section, and the installation section is provided with an installation hole which is communicated in the thickness direction;

the first magnetic attraction piece is arranged on the mounting section;

the watch comprises a watch plate, wherein the watch plate is separable from the watch band, the watch plate is arranged on the mounting section and corresponds to the mounting hole, a second magnetic piece is arranged on the watch plate, and the second magnetic piece is attracted with the first magnetic piece to be fixed on the watch plate.

2. The watch of claim 1, wherein the first magnetically attractive element is a magnetically attractive ring disposed around the mounting hole, the magnetically attractive ring being a metallic element.

3. The watch of claim 2, wherein the second magnetically attractive element includes a plurality of magnets spaced along the magnetically attractive ring.

4. The watch of claim 1, wherein at least one of the watchband and the first magnetic attachment is provided with a first positioning portion, and the watch face is provided with a second positioning portion, the second positioning portion cooperating with the first positioning portion.

5. The watch according to claim 4, wherein the first positioning portion is a positioning groove formed on an inner wall of the mounting hole or the first magnetic member, and the second positioning portion is a positioning projection formed on the dial plate.

6. The watch of claim 1, wherein said first magnetically attractive element is detachably disposed on said mounting section, a portion of said mounting section surrounding said mounting hole being sandwiched between said dial plate and said first magnetically attractive element; or, the first magnetic part is fixedly connected to the mounting section.

7. The watch of claim 6, wherein when the first magnetic member is fixedly connected to the mounting section, the first magnetic member is integrally formed on the mounting section by hot pressing, and the first magnetic member is located on an inner peripheral wall of the mounting hole.

8. The watch of claim 6, wherein the first magnetic attracting member is a circular ring, and a circular truncated cone is arranged on the back surface of the dial plate and inserted into the circular ring.

9. The watch according to any one of claims 1 to 8, wherein a sensing member for detecting a human body is provided on the dial plate, and a sensing end of the sensing member is provided corresponding to the mounting hole.

10. The watch according to any one of claims 1 to 8, characterized in that said dial comprises:

the front shell is provided with a touch screen and a control key;

the backshell, the backshell is connected the rear side of preceding shell, the second magnetism is inhaled the piece and is established on the backshell, the backshell corresponds the installation section sets up.

Technical Field

The invention relates to the technical field of wearable equipment, in particular to a watch.

Background

With the development of scientific technology and the progress of the living standard of people, the smart watch has been more and more deeply inserted into the life of people. The smart watch is more and more abundant in function, some have the functions of making a call, sending voice, returning a message, connecting a mobile phone and the like, some have the functions of knowing weather, inquiring flight information, navigating a map, playing music and the like, and the functions of measuring heartbeat, counting steps and the like. Some smart watches even become an all-around health and motion tracking device, forming a fashion of life. And the fashionable watchband that intelligent wrist-watch collocation was also more and more abundant, can be according to individual hobby, select various styles.

In traditional wrist-watch, the connected mode of dial plate and watchband causes very big difficulty inconvenient to shirking to change the watchband, can not satisfy present people's convenient demand.

The watchband connecting assembly is provided in the related art, the watchband and the dial plate are attracted by the magnet, meanwhile, the watchband is also provided with the groove for clamping, the structure is too complex, and the cost is higher. There is also a solution to fix magnets to the strap to attract the watch disc, which may limit the additional functions of the watch, and there is therefore still room for improvement.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a watch, which not only can enable a dial plate and a watchband to be very conveniently assembled and disassembled, but also has simple structure and can reduce the limitation on the additional functions of the watch.

A watch according to an embodiment of the present invention includes: the watchband comprises a watchband, wherein one section of the watchband is an installation section, and the installation section is provided with an installation hole which is communicated in the thickness direction; the first magnetic attraction piece is arranged on the mounting section; the watch comprises a watch plate, wherein the watch plate is separable from the watch band, the watch plate can be arranged on the mounting section and corresponds to the mounting hole, a second magnetic piece is arranged on the watch plate, and the second magnetic piece is attracted with the first magnetic piece to be fixed on the watch plate.

According to the watch provided by the embodiment of the invention, the watchband is provided with the first magnetic attraction piece, the watch face is provided with the second magnetic attraction piece, and the first magnetic attraction piece and the second magnetic attraction piece attract each other through magnetic force to fix the watch face and the watchband together for normal use of a user. When the user has individualized demand, can conveniently with the watchband with the dial plate is separated, to the watchband is changed, this kind of dismantlement mode simple structure. And one section of the watchband is a mounting section, the mounting section is provided with a mounting hole which is through in the thickness direction, namely the middle of the mounting section is hollow, the dial plate and the watchband are mounted together, and when the watch is worn by a user, the back of the dial plate is directly contacted with the skin, even the skin is contacted with the skin. When the watch has additional functions, such as the addition of a human body sensing part on the dial plate, more accurate detection data can be obtained by directly facing the skin or contacting the skin, so that the additional functions of the watch are less limited.

According to the watch provided by some embodiments of the invention, the first magnetic attraction piece is a magnetic attraction ring arranged around the mounting hole, and the magnetic attraction ring is a metal piece.

According to some embodiments of the watch of the invention, the second magnetically attractive element comprises a plurality of magnets spaced apart along the magnetically attractive ring.

According to the watch provided by some embodiments of the invention, at least one of the watchband and the first magnetic attraction piece is provided with a first positioning part, and the watch face is provided with a second positioning part which is matched with the first positioning part.

Specifically, the first positioning portion is a positioning groove formed in the inner wall of the mounting hole or on the first magnetic attraction piece, and the second positioning portion is a positioning bump formed on the dial plate.

According to the watch provided by some embodiments of the invention, the first magnetic attraction piece is detachably arranged on the installation section, and the part of the installation section surrounding the installation hole is clamped between the dial plate and the first magnetic attraction piece; or, the first magnetic part is fixedly connected to the mounting section.

Optionally, when the first magnetic attraction piece is fixedly connected to the installation section, the first magnetic attraction piece is integrally formed on the installation section through hot pressing, and the first magnetic attraction piece is located on the inner circumferential wall of the installation hole.

According to the watch provided by some embodiments of the invention, the first magnetic attraction piece is a circular ring, and a circular truncated cone is arranged on the back surface of the watch face and inserted into the circular ring.

According to some further embodiments of the present invention, the dial plate is provided with a sensing member for detecting a human body, and a sensing end of the sensing member is disposed corresponding to the mounting hole.

According to some further embodiments of the invention, the dial plate comprises: the front shell is provided with a touch screen and a control key; the backshell, the backshell is connected the rear side of preceding shell, the second magnetism is inhaled the piece and is established on the backshell, the backshell corresponds the installation section sets up.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a front perspective view of a wristwatch according to an embodiment of the present invention.

Fig. 2 is a front exploded view of the watch of the embodiment shown in fig. 1.

Fig. 3 is a rear perspective view of the wristwatch of the embodiment shown in fig. 1.

Fig. 4 is a back exploded view of the watch of the embodiment shown in fig. 1.

Fig. 5 is a schematic view of the manner in which the dial and the band of the wristwatch of the embodiment shown in fig. 1 are attached.

Fig. 6 is a schematic view of the mounting manner of the dial plate and the first magnetic attracting member of the watch following fig. 5.

Fig. 7 is a front exploded view of a watch according to another embodiment of the invention.

Fig. 8 is a back exploded view of the watch of the embodiment shown in fig. 7.

Fig. 9 is a front view of a wristwatch of an embodiment of the present invention.

Fig. 10 is a right side view of a watch of an embodiment of the present invention.

Fig. 11 is a rear view of a wristwatch of an embodiment of the present invention.

Reference numerals:

a watch 100,

A watch band 200, a mounting segment 210, a mounting hole 220,

The first magnetic member 300, the magnetic ring 310, and the first positioning portion 320

A dial 400, a second magnetic element 410, a magnet 411, a second positioning part 420, a circular truncated cone 430, a sensor 440, a front case 450, a touch screen 451, a control key 452,

A rear housing 460.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "thickness", "upper", "lower", "front", "rear", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

A wristwatch 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 11.

The wristwatch 100 according to the embodiment of the present invention includes: the watch band 200, the first magnetic attraction piece 300 and the dial plate 400. One end of the band 200 is a mounting segment 210, and the mounting segment 210 is provided with a mounting hole 220 penetrating in the thickness direction. The first magnetic member 300 is disposed on the mounting section 210. The watch face 400 is separable from the watch band 200, the watch face 400 can be disposed on the mounting section 210 and corresponding to the mounting hole 220, the watch face 400 is provided with a second magnetic element 410, and the second magnetic element 410 is attracted to the first magnetic element 300 to fix the watch face 400.

According to the watch 100 of the embodiment of the invention, as shown in fig. 1-4, the watch band 200 is provided with the first magnetic attraction piece 300, the watch face 400 is provided with the second magnetic attraction piece 410, and the first magnetic attraction piece 300 and the second magnetic attraction piece 410 attract each other through magnetic force to fix the watch face 400 and the watch band 200 together for normal use of a user. When the user has a personalized demand, the watch band 200 can be conveniently separated from the dial plate 400, and the watch band 200 can be replaced. And one section of the watchband 200 is the installation section 210, and the installation section 210 is provided with the installation hole 220 penetrating in the thickness direction, that is, the middle of the installation section 210 is hollow, when the watch face 400 is installed together with the watchband 200 and worn by a user, the back of the watch face 400 can be directly faced with the skin through the installation hole 220, and in some schemes, the back of the watch face 400 is contacted with the skin through the installation hole 220.

Thus, when the watch 100 has additional functions, for example, a human body sensor (e.g., a body temperature sensor, a heart rate sensor, etc.) is attached to the watch face 400, the sensing end of the human body sensor can be directly facing the skin or contact the skin, so that more accurate detection data can be obtained. Therefore, the above-mentioned solution not only makes the watch 100 simple in structure and facilitates the detachment of the band 200, but also has less limitation on the additional functions of the watch 100.

According to the watch 100 of some embodiments of the present invention, as shown in fig. 2, the first magnetic member 300 is a magnetic ring 310 disposed around the mounting hole 220, and the magnetic ring 310 is a metal member.

Set up like this, utilize the metal material of magnetism to inhale ring 310 itself, just can let magnetism inhale ring 310 and second magnetism and inhale piece 410 through magnetic force and inhale mutually, inhale ring 310 in whole girth direction all have suction (the size distribution of all suction of whole girth direction in the whole girth direction probably differs) in addition, inhale ring 310 cooperation dial plate like this, all clip the whole circle edge of mounting hole 220, improve the homogeneity that clamping-force distributes.

Of course, the present disclosure is not limited thereto, and in some embodiments, the first magnetic element 300 may be a magnet, and a surface of the first magnetic element 300 contacting the watch face 400 and a surface of the second magnetic element 410 contacting the watch band 200 have opposite magnetic poles. Thus, the first magnetic member 300 and the second magnetic member 410 can be attracted together by the principle of opposite attraction of the magnets to fix the dial 400.

In other embodiments, the first magnetic element 300 can be made of a composite material, and the magnetic ring 310 of the first magnetic element 300 can be formed by a metal layer on one side and a non-metal layer on the other side, or formed by two non-metal layers sandwiching a metal layer. Therefore, after the first magnetic attraction piece 300 and the second magnetic attraction piece 410 are attracted, the non-metal surface of the first magnetic attraction piece 300 faces the skin of the user, so that the use comfort of the user can be improved, and the use feeling of the user is enhanced.

According to the watch 100 of some embodiments of the present invention, as shown in fig. 2, the second magnetic attracting element 410 includes a plurality of magnets 411, and the plurality of magnets 411 are spaced along the magnetic attracting ring 310. Therefore, the magnet 411 is arranged on the second magnetic part 410 corresponding to the magnetic ring 310 of the first magnetic part, so that the magnet 411 can be ensured to be accurately attracted to the magnetic ring 310 of the first magnetic part 300, and the magnetic effect can be ensured. The first magnetic attraction piece 300 and the second magnetic attraction piece 410 can attract and fix the dial 400 more firmly, and the dial is prevented from falling off in the using process.

It should be noted that the number and the arrangement interval of the magnets 411 on the second magnetic element 410 are not specifically limited. For example, the number of the magnets 411 may be two or four, and the arrangement of the magnets 411 may be opposite to each other or may be uniformly distributed. These can be modified according to the actual requirements of the use of the magnetic force.

In some embodiments, the magnet 411 of the second magnetic element 410 may be a ring with a shape corresponding to the shape of the magnetic ring 310. Therefore, the integrity of the second magnetic element 410 can be increased, and the attraction force between the first magnetic element 300 and the second magnetic element 410 can be enhanced, so that the watch face 400 can be more stably fixed on the watch band 200.

According to the wristwatch 100 of some embodiments of the present invention, as shown in fig. 4, at least one of the watch band 200 and the first magnetic attracting element 300 is provided with a first positioning portion 320, and the watch face 400 is provided with a second positioning portion 420, wherein the second positioning portion 420 is matched with the first positioning portion 320. From this, dial plate 400 and watchband 200 can carry out accurate cooperation through two location portions, can increase the convenient degree of changing when changing watchband 200, improve and use the impression.

It will be appreciated that, according to the habit of using the watch 100, the angle of the watch face 400 with respect to the watch band 200 is generally determined, and therefore, the positioning portion is provided to facilitate the quick positioning of the watch face 400, and the positioning portion is equivalent to a fool-proof structure.

The first positioning portion 320 may be provided on the band 200, the first magnetic element 300, or both the band 200 and the first magnetic element 300. The first positioning portions 320 are provided at a plurality of positions to increase the positioning effect, so that the fitting direction of the band 200 and the dial 400 can be found more easily, and the replacement speed of the band 200 can be increased.

Specifically, as shown in fig. 5, the first positioning portion 320 is a positioning groove formed on the inner wall of the mounting hole 220 or on the first magnetic attraction piece 300, and the second positioning portion 420 is a positioning bump formed on the dial 400. Thus, the positioning groove of the first positioning part 320 and the positioning lug of the second positioning part 420 can be matched more tightly, so that the situation that the watch band 200 and the watch plate 400 are loosened after being matched is prevented.

Optionally, the first positioning portion 320 may also be a positioning protrusion, the second positioning portion 420 is a positioning groove, and neither the protrusion nor the groove of the first positioning portion 320 nor the second positioning portion 420 affects the fitting effect, so that the watch band 200 and the watch face 400 can be fitted together.

Further, the shapes of the positioning groove and the positioning salient point are not specifically limited, for example, the positioning salient point may be a square salient point, and the corresponding positioning groove is an inward concave square groove, and if the positioning salient point is a circular salient point, the corresponding positioning groove is an inward concave circular groove.

According to the watch 100 of some embodiments of the present invention, as shown in fig. 6, the first magnetic attraction piece 300 is detachably disposed on the mounting section 210, and a portion of the mounting section 210 surrounding the mounting hole 220 is sandwiched between the watch face 400 and the first magnetic attraction piece 300; alternatively, the first magnetic member 300 is fixedly attached to the mounting section 210. Like this first magnetism inhale separable the establishing on installation section 210 of piece 300, can increase the replaceability of watchband 200, when the user has the demand of changing watchband 200, only need with watchband 200 change can, first magnetism inhale piece 300 can continue to use, reduced the cost of changing watchband 200.

Of course, the first magnetic attraction piece 300 may also be fixedly connected to the mounting section 210, as shown in fig. 7-8, the first magnetic attraction piece 300 is fixed to the mounting section 210, so that the number of parts of the whole watch 100 can be reduced, and the parts can be prevented from being lost. And when the user has the needs of changing the watchband 200, directly with watchband 200 and dial plate 400 separation change watchband 200 can, increased the change speed of watchband 200, promote user's use and feel.

Alternatively, as shown in fig. 7-8, when the first magnetic element 300 is fixedly connected to the mounting section 210, the first magnetic element 300 is integrally formed on the mounting section 210 by hot pressing, and the first magnetic element 300 is located on the inner peripheral wall of the mounting hole 220. Through the hot pressing technology, can inhale piece 300 with first magnetism and watchband 200 hot bonding together through glue, can increase the firm degree of pasting of first magnetism piece 300 and watchband 200 installation section 210 like this, increase the life of watchband 200. First magnetism is inhaled piece 300 and is established on the internal perisporium of mounting hole 220, can reduce the hot pressing degree of difficulty of first magnetism piece 300 and installation section 210 of inhaling, reduces the processing cost.

Alternatively, the first magnetic member 300 may also be fixedly connected to the mounting section 210 through a slot. An annular groove or an annular protrusion can be formed in the inner peripheral wall of the mounting section 210, and the outer peripheral wall of the first magnetic part 300 is processed into the annular protrusion or the annular groove, so that the annular groove and the annular protrusion can be matched. Therefore, the first magnetic part 300 and the mounting section 210 can be clamped together and then bonded by glue, so that the firmness is increased.

According to the watch 100 of some embodiments of the present invention, as shown in fig. 4, the first magnetic element 300 is a circular ring, and the back of the watch face 400 is provided with a circular truncated cone 430, and the circular truncated cone 430 is inserted into the circular ring. Like this insert the round platform 430 of dial plate 400 in the ring of first magnetism piece 300, can increase the firm degree of connection, prevent in the use that dial plate 400 from droing.

Alternatively, the shape of the first magnetic element 300 may not be circular, for example, it may be a rounded rectangle. Accordingly, the shape of the dial 400 and the shape of the mounting hole 220 may be changed to corresponding rounded rectangles.

According to some further embodiments of the present invention, as shown in fig. 9-11, a sensing member 440 (see fig. 3) for detecting a human body is disposed on the dial 400, and a sensing end of the sensing member 440 is disposed corresponding to the mounting hole 220. The sensing member 440 can directly contact with the skin of the user through the mounting hole 220 to detect various data of the human body, thereby increasing the user experience. The specific type of the sensing element 440 is not limited specifically, and may be, for example, a heart rate sensing element, or an oxygen saturation sensing element.

Of course, the present invention is not limited thereto, and the sensing member 440 may not be provided in the factory configuration of the dial 400. That is, the human body sensor that needs the skin in a straight shape or in contact with the skin may be built in the dial 400 when the watch 100 is shipped, or may be a human body sensor that is pre-installed on the dial 400, and the human body sensor is configured and selected by the user as needed and then installed on the installation position of the dial 400.

According to some further embodiments of the present invention, as shown in fig. 9-11, dial 400 includes: the front shell 450 and the rear shell 460, the touch screen 451 and the control key 452 are arranged on the front shell 450, the rear shell 460 is connected to the rear side of the front shell 450, the second magnetic attraction piece 410 is arranged on the rear shell 460, and the rear shell 460 is arranged corresponding to the installation section 210. This addition of the touch screen 451 to the front case 450 may enhance the functional versatility of the watch 100. The front shell 450 is connected with the rear shell 460, and the rear shell 460 is arranged corresponding to the mounting section 210, so that the integrity of the watch 100 can be improved, and the use experience of a user can be improved.

The structure of the watch 100 in one embodiment is described below with reference to fig. 1-6.

The watch 100 includes: a watch face 400, a watch band 200 and a first magnetic element 300. The dial 400 includes a front case 450 and a rear case 460, the front case 450 is provided with a touch screen 451 and a control key 452, the rear case 460 is connected to the rear side of the front case 450, and a sensing member 440 for detecting a human body is provided. The second magnetic attraction piece 410 is arranged on the rear shell 460, and the second magnetic attraction piece 410 is provided with a plurality of magnets 411 arranged in an annular interval manner and can be attracted with the first magnetic attraction piece 300. One segment of the band 200 is a mounting segment 210, and the mounting segment 210 is provided with a mounting hole 220 penetrating in the thickness direction. The rear case 460 is disposed corresponding to the mounting section 210. The first magnetic member 300 is disposed on the mounting section 210. The watch face 400 is detachable from the band 200, and the first magnetic attracting element 300 and the second magnetic attracting element 410 attract each other to fix the watch face 400.

The first magnetic member 300 is a metal magnetic ring surrounding the mounting hole 220. The first magnetic member 300 is detachably disposed on the mounting section 210. The back of the dial 400 is provided with a round table 430 inserted in the first magnetic element 300.

The inner wall of the mounting hole 220 of the watch band 200 is provided with a positioning groove, the rear case 460 of the watch plate 400 is provided with a positioning lug, and the positioning groove and the positioning lug can be matched with each other, so that the watch plate 400 and the watch band 200 can be precisely jointed together.

The structure of the wristwatch 100 in another embodiment is described below with reference to fig. 7 and 8.

The watch 100 includes: a watch face 400, a watch band 200 and a first magnetic element 300. The dial 400 includes a front case 450 and a rear case 460, the front case 450 is provided with a touch screen 451 and a control key 452, the rear case 460 is connected to the rear side of the front case 450, and a sensing member 440 for detecting a human body is provided. The second magnetic attraction piece 410 is arranged on the rear shell 460, and the second magnetic attraction piece 410 is provided with a plurality of magnets 411 arranged in an annular interval manner and can be attracted with the first magnetic attraction piece 300. One segment of the band 200 is a mounting segment 210, and the mounting segment 210 is provided with a mounting hole 220 penetrating in the thickness direction. The rear case 460 is disposed corresponding to the mounting section 210. The first magnetic member 300 is disposed on the mounting section 210. The watch face 400 is detachable from the band 200, and the first magnetic attracting element 300 and the second magnetic attracting element 410 attract each other to fix the watch face 400.

The first magnetic member 300 is a metal magnetic ring surrounding the mounting hole 220. The first magnetic member 300 is integrally formed on the mounting section 210 by hot pressing. The back of the dial 400 is provided with a round table 430 inserted in the first magnetic element 300.

The inner wall of the mounting hole 220 of the watch band 200 is provided with a positioning groove, the rear case 460 of the watch plate 400 is provided with a positioning lug, and the positioning groove and the positioning lug can be matched with each other, so that the watch plate 400 and the watch band 200 can be precisely jointed together.

Other components of the watch 100 according to embodiments of the present invention, such as the movement and the clasp of the watch band 200, are known to those skilled in the art and will not be described in detail herein.

In the description herein, references to the description of the terms "embodiment," "example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.