阅读说明：本技术 一种保护型可锻炼手部的秋千 (Protection type can temper swing of hand ) 是由 方静 王国平 于 2020-11-20 设计创作，主要内容包括：本发明公开了一种保护型可锻炼手部的秋千,包括第一支架,第一支架两端均固定连接有第二支架,第一支架上设有两个固定装置,两个固定装置关于第一支架垂直中心面对称分布,两个固定装置位于两个第二支架之间,第一支架设有两个连接装置,两个连接装置设有支撑装置,支撑装置用于支撑使用者脱离地面,两个连接装置用于将支撑装置与第一支架连接,两个连接装置关于第一支架垂直中心面对称分布,支撑装置的中心线位于第一支架垂直中心面内,支撑装置设有两个保护使用者的保护装置,保护装置设有锻炼手部肌肉的锻炼组件,本秋千可在使用过程中对使用者进行保护且用于保护的装置在不需要保护时能用来锻炼。(The invention discloses a protective swing capable of exercising hands, which comprises a first support, wherein two ends of the first support are fixedly connected with second supports, two fixing devices are arranged on the first support and symmetrically distributed about a vertical central plane of the first support, the two fixing devices are positioned between the two second supports, the first support is provided with two connecting devices, the two connecting devices are provided with supporting devices, the supporting devices are used for supporting a user to be separated from the ground, the two connecting devices are used for connecting the supporting devices with the first support, the two connecting devices are symmetrically distributed about the vertical central plane of the first support, the central line of the supporting devices is positioned in the vertical central plane of the first support, the supporting devices are provided with two protective devices for protecting the user, the protective devices are provided with exercise components for exercising muscles of the hands, and the protective devices can be used for exercising when the protection is not needed.)

1. The utility model provides a hand's swing can be tempered to protection type, includes first support (11), first support (11) are the cylinder that is on a parallel with ground, the equal fixedly connected with axle stopper (12) in first support (11) both ends, axle stopper (12) are half spherical, its characterized in that: be equipped with two fixing device on first support (11), two fixing device is about first support (11) vertical center plane symmetric distribution, two fixing device is located between two axle stopper (12), first support (11) are equipped with two connecting device, two the connecting device upper end is equipped with strutting arrangement, two connecting device is used for being connected strutting arrangement and first support (11), two connecting device is about first support (11) vertical center plane symmetric distribution, strutting arrangement's central line is located first support (11) vertical center plane, strutting arrangement is equipped with two protection user's protection device, two protection device is about strutting arrangement central line symmetric distribution, be equipped with the exercise subassembly that is used for taking exercise hand muscle in the protection device.

2. A protective exercise hand swing according to claim 1, wherein: the fixing device comprises two third supports (10) fixedly arranged on the first support (11), the two third supports (10) are respectively positioned at two ends of the first support (11), and fixing assemblies are arranged at the lower ends of the two third supports (10).

3. A protective exercise hand swing according to claim 2, wherein: the fixing assembly comprises a fourth support (18) fixedly arranged on the third support (10), and the fourth support (18) is connected with a fixing bolt (19) through a through hole in a threaded manner.

4. A protective exercise hand swing according to claim 1, wherein: connecting device is including setting up stay bolt (13) on first support (11), stay bolt (13) threaded connection has supporting nut (14), stay bolt (13) run through first support (11) and supporting nut (14) threaded connection, stay bolt (13) lower extreme is established to ring shape, and stay bolt (13) lower extreme ring shape swing joint has wire rope (20), wire rope (20) overcoat is equipped with protection fag end (15) of protection wire rope (20).

5. A protective swing to exercise hands according to claim 4, wherein: the supporting device comprises a supporting base (16), the rear side of the supporting base (16) is provided with an arc-shaped protrusion for supporting the waist of a user, the left side and the right side of the supporting base (16) are provided with fixed hanging rings (17), and the fixed hanging rings (17) are movably connected with steel wire ropes (20) close to the fixed hanging rings.

6. A protective exercise hand swing according to claim 5, wherein: the protection device comprises a sixth support (21) fixedly arranged on a supporting base (16), a first rotating shaft (22) and a limiting support (23) are arranged on the sixth support (21), the first rotating shaft (22) is rotatably connected with the sixth support (21), the central line of the first rotating shaft (22) is perpendicular to the paper surface, the first rotating shaft (22) can rotate around the central line of the first rotating shaft, the limiting support (23) is fixedly connected with the sixth support (21), the limiting support (23) is arranged on the left lower portion of the first rotating shaft (22) in a semicircular shape, the first rotating shaft (22) is fixedly connected with a first connecting rod (24), the limiting support (23) limits the first connecting rod (24), the first connecting rod (24) is limited at the horizontal position and the vertical position by the limiting support (23) when rotating along with the first rotating shaft (22), one end, far away from the first rotating shaft (22), of the first connecting rod (24) is in threaded connection with a cover plate (25), the cover plate (25) is provided with two rectangular protrusions (251) used for limiting the exercise assembly, and the two rectangular protrusions (251) of the cover plate (25) are symmetrically distributed on the outer wall of the cover plate (25).

7. A protective exercise hand swing according to claim 6, wherein: the exercise assembly comprises a first sliding block (26) which is movably sleeved on a cover plate (25), wherein the first sliding block (26) is provided with two first sliding grooves (33), the two first sliding grooves (33) correspond to two rectangular protrusions (251) which accommodate the cover plate (25) respectively in an initial state, one sides of the two first sliding grooves (33) are provided with sliding groove openings (32), the first sliding block (26) is externally fixed with a grab handle (27), the first sliding block (26) is provided with two ventilation parts, and the ventilation parts are symmetrically distributed on the horizontal center plane of the grab handle (27).

8. A protective exercise hand swing according to claim 7, wherein: a second sliding groove (28) is formed in the first sliding block (26), two sliding block protrusions (241) are arranged on the vertical central plane of the first connecting rod (24) in the front-back direction, the two sliding block protrusions (241) of the first connecting rod (24) are symmetrically distributed on the horizontal central plane of the first connecting rod (24), the ventilation component comprises a tension spring (29) connected between the sliding block protrusions (241) and the inner wall of the second sliding groove (28), a first ventilation pipeline (35) is arranged at the horizontal center of the sliding block protrusions (241), the first ventilation pipeline (35) on the left side penetrates through a channel formed in the first connecting rod (24) to be communicated with the outside, and the first ventilation pipeline (35) is obliquely arranged in a left-high-right mode; the rectangular protrusion (251) of the cover plate (25) on the upper side is provided with a second vent pipe (36), the first vent pipe (35) on the right side penetrates through a channel arranged inside the first connecting rod (24) to be communicated with the second vent pipe (36), the second vent pipe (36) penetrates through the rectangular protrusion (251) to be communicated with the outside, and the second vent pipe (36) is obliquely arranged in a mode of being low on the left and high on the right.

Technical Field

The invention belongs to the field of entertainment equipment, and particularly relates to a protective swing capable of exercising hands.

Background

With the improvement of living standard and the needs of taking exercise, nowadays most of parks, districts and the like are equipped with fitness equipment, which is convenient for people to take exercise and enriches the lives of people, however, nowadays, most of swings in places such as parks, districts and the like are lack of protective measures, and some swings are provided with protective measures but cannot move so that the space is too small or too fixed, which results in the difficulty of meeting the requirements of different people.

Disclosure of Invention

The present invention overcomes the deficiencies of the prior art by providing a swing that protects a user during use and wherein the means for protecting is capable of rotating for exercise when protection is not required.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a protection type can temper swing of hand, including first support, first support is the cylinder that is on a parallel with ground, the equal fixedly connected with axle stopper in first support both ends, the axle stopper is the semicircle sphere, be equipped with two fixing device on the first support, two fixing device are about first support vertical center plane symmetric distribution, two fixing device are located between two axle stoppers, first support is equipped with two connecting device, two connecting device are equipped with strutting arrangement, strutting arrangement is used for supporting user to break away from ground, two connecting device are used for being connected strutting arrangement and first support, two connecting device are about first support vertical center plane symmetric distribution, strutting arrangement's central line is located first support vertical center plane, strutting arrangement is equipped with two protection device of protection user, two protection device are about strutting arrangement central line symmetric distribution, protection device is equipped with the exercise subassembly of tempering hand muscle.

The fixing device comprises two third supports fixedly arranged on the first support, the two third supports are respectively positioned at two ends of the first support, and fixing assemblies are arranged at the lower ends of the two third supports.

The fixing assembly comprises a fourth support fixedly arranged on the third support, the fourth support is provided with a through hole, the inner wall of the through hole is provided with threads, the through hole of the fourth support is in threaded connection with a fixing bolt, the fourth support is attached to the ground during installation, the fourth support is fixedly connected with the ground through the fixing bolt, the device is fixed on the ground, and the force borne by the third support and the fourth support can be stably guided to the ground and stably supported by the reaction force of the ground.

The connecting device comprises a supporting bolt arranged on the first support, the supporting bolt is in threaded connection with a supporting nut, the supporting bolt penetrates through the first support and is in threaded connection with the supporting nut, the lower end of the supporting bolt is arranged to be in a ring shape, the lower end of the supporting bolt is movably connected with a steel wire rope in a ring shape, and a protective rope sleeve for protecting the steel wire rope is sleeved outside the steel wire rope. When the steel wire rope is stressed, the force is guided to the supporting bolt, the supporting bolt guides the force to the supporting nut and further to the first support, and the first support guides the force to the third support, so that the third support bears the force.

The supporting device comprises a supporting base, wherein an arc-shaped bulge for supporting the waist of a user is arranged on the rear side of the supporting base, fixed hanging rings are arranged on the left side and the right side of the supporting base, and the fixed hanging rings are movably connected with steel wire ropes close to the fixed hanging rings. Support base and user direct contact, the user places the buttock on supporting the base, and later both feet break away from ground, support the base and bear all forces that the user transmitted, later support the base with the fixed link of power direction, fixed link is with power direction wire rope, supports the arc arch of base and supports the user support, avoids the user to drop in the use.

Protection device is including the fixed sixth support that sets up on supporting the base, be equipped with first pivot and spacing support on the sixth support, first pivot is connected with the rotation of sixth support, and the central line perpendicular to paper of first pivot, first pivot can be realized rotating around its central line, spacing support and sixth support fixed connection, spacing support is the left side below that the semicircle annular set up at first pivot, first pivot fixedly connected with first connecting rod, spacing support carries on spacingly to first connecting rod, make first connecting rod inject horizontal position and vertical position by spacing support when rotating along with first pivot, first pivot one end threaded connection is kept away from to first connecting rod has the apron, the apron is equipped with the two rectangles arch that are used for spacing exercise subassembly, the two rectangles arch of apron are the symmetric distribution on the apron outer wall.

The exercise assembly comprises a first sliding block which is sleeved on the cover plate through a movable sleeve, the first sliding block is provided with two first sliding grooves, in an initial state, the two first sliding grooves correspond to two rectangular bulges for accommodating the cover plate respectively, one sides of the two first sliding grooves are provided with sliding groove openings, the sliding groove openings are used for enabling the two rectangular bulges of the cover plate to be located in the corresponding sliding groove openings when the first sliding block rotates relative to the cover plate, the first sliding block can slide in a left-right reciprocating mode relative to the cover plate, the first sliding block is externally and fixedly sleeved with a grab handle for grabbing and taking, the first sliding block is provided with two ventilation parts, and the two ventilation parts are symmetrically distributed on the horizontal center plane of the grab handle. The design of apron and first slider makes the user can select fixed first slider still to take exercise with the help of first slider, when the needs protection, fixed first slider makes the grab handle provide a stable support of user, when needs are taken exercise, rotatory first slider makes first slider break away from the apron from the spout opening, remove the restraint of apron to first slider, later the hand drives first slider and slides along the relative first link of first link and tempers the hand, utilize the part of ventilating to accomplish the gas flow and take away the heat of taking exercise production and utilize gas to blow to the design direction when taking exercise.

A second sliding groove is formed in the first sliding block, two sliding block bulges are arranged on the vertical central plane in the front-back direction of the first connecting rod, the two sliding block bulges of the first connecting rod are symmetrically distributed about the horizontal central plane of the first connecting rod, the ventilation part comprises a tension spring connected between the sliding block bulges and the inner wall of the second sliding groove, a first ventilation pipeline is arranged at the horizontal center of the sliding block bulges, the first ventilation pipeline on the left side penetrates through a channel arranged in the first connecting rod to be communicated with the outside, and the first ventilation pipeline is obliquely arranged in a left-high-right-low mode; the rectangle arch that the apron is located the upside is equipped with the second air duct, and the first air duct on the right passes the inside passageway and the second air duct intercommunication that set up of first connecting rod, and the second air duct passes the rectangle arch and communicates with the external world, and the second air duct is the high slope setting in the low right side in a left side.

In summary, the invention has the following advantages: the device can protect a user in the using process; the device for protection can rotate for exercising when the protection is not needed; the heat of the user and the device can be partially carried when the user exercises.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a left side view of the present invention;

FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;

FIG. 4 is a partial enlarged view of FIG. 3 at B;

fig. 5 is a sectional view taken at C-C in fig. 4.

In the figure, a third bracket 10, a first bracket 11, a shaft plug 12, a support bolt 13, a support nut 14, a protective rope sleeve 15, a support base 16, a fixed hanging ring 17, a fourth bracket 18, a fixed bolt 19, a steel wire rope 20, a sixth bracket 21, a first rotating shaft 22, a limit bracket 23, a first connecting rod 24, a cover plate 25, a rectangular protrusion 251, a first sliding block 26, a grab handle 27, a second sliding groove 28, a tension spring 29, a sliding groove opening 32, a first sliding groove 33, a second sliding block 34, a first ventilation pipeline 35 and a second ventilation pipeline 36.

Detailed Description

In the description of the present invention, it is to be understood that the terms etc. indicate orientations or positional relationships based on those shown in the drawings, which are for convenience of description and simplicity of description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-2, a protection type swing capable of exercising hands comprises a first bracket 11, wherein the first bracket 11 is a cylinder parallel to the ground, two ends of the first bracket 11 are fixedly connected with shaft plugs 12, the shaft plugs 12 are semi-spherical, two fixing devices are arranged on the first bracket 11 and symmetrically distributed about a vertical central plane of the first bracket 11, the two fixing devices are positioned between the two shaft plugs 12, the first bracket 11 is provided with two connecting devices, the two connecting devices are provided with supporting devices, the supporting devices are used for supporting a user to be separated from the ground, the two connecting devices are used for connecting the supporting devices with the first bracket 11, the two connecting devices are symmetrically distributed about the vertical central plane of the first bracket 11, a central line of the supporting devices is positioned in the vertical central plane of the first bracket 11, and the supporting devices are provided with two protecting devices for protecting the user, two protection devices are distributed about strutting arrangement central line symmetry, and protection device is equipped with the exercise subassembly of taking exercise hand muscle.

The fixing device comprises two third supports 10 fixedly arranged on the first support 11, the two third supports 10 are respectively positioned at two ends of the first support 11, and fixing components are arranged at the lower ends of the two third supports 10.

Fixed subassembly is including the fixed fourth support 18 that sets up on third support 10, fourth support 18 is equipped with the through-hole, the through-hole inner wall is equipped with the screw thread, the through-hole threaded connection of fourth support 18 has fixing bolt 19, laminate fourth support 18 and ground during the installation, then through fixing bolt 19 with fourth support 18 and ground fixed connection, thereby fix this device subaerial, make third support 10 and fourth support 18 can be stable with the power guide ground that bears and utilize the reaction force on ground to come the steady support this device.

Referring to fig. 3, the connecting device includes a supporting bolt 13 disposed on the first bracket 11, the supporting bolt 13 is connected with a supporting nut 14 through a thread, the supporting bolt 13 penetrates through the first bracket 11 and is connected with the supporting nut 14 through a thread, the lower end of the supporting bolt 13 is in a circular ring shape, the lower end of the supporting bolt 13 is movably connected with a steel wire rope 20 in a circular ring shape, and a protecting rope sleeve 15 for protecting the steel wire rope 20 is sleeved outside the steel wire rope 20. When the wire rope 20 is subjected to a force, the force is directed to the supporting bolt 13, the supporting bolt 13 directs the force to the supporting nut 14 and further to the first bracket 11, and the first bracket 11 directs the force to the third bracket 10, so that the third bracket 10 bears the force.

The supporting device comprises a supporting base 16, an arc-shaped bulge used for supporting the waist of a user is arranged on the rear side of the supporting base 16, fixed hanging rings 17 are arranged on the left side and the right side of the supporting base 16, and the fixed hanging rings 17 are movably connected with steel wire ropes 20 close to the fixed hanging rings 17. Support base 16 and user direct contact, the user places the buttock on supporting base 16, and later both feet break away from ground, support base 16 and bear all forces that the user transmitted, later support base 16 with fixed link 17 of power direction, fixed link 17 is with power direction wire rope 20, support base 16's arc is protruding to give the user support, avoids the user to drop in the use.

Referring to fig. 3-4, the protection device includes a sixth bracket 21 fixedly disposed on the supporting base 16, a first rotating shaft 22 and a limiting bracket 23 are disposed on the sixth bracket 21, the first rotating shaft 22 is rotatably connected to the sixth bracket 21, and the central line of the first rotating shaft 22 is perpendicular to the paper surface, the first rotating shaft 22 can rotate around the central line, the limiting bracket 23 is fixedly connected with the sixth bracket 21, the limiting bracket 23 is arranged at the left lower part of the first rotating shaft 22 in a semicircular shape, the first rotating shaft 22 is fixedly connected with the first connecting rod 24, the limiting bracket 23 limits the first connecting rod 24, make first connecting rod 24 along with first pivot 22 when rotating by spacing support 23 inject horizontal position and vertical position, first connecting rod 24 is kept away from first pivot 22 one end threaded connection has a apron 25, and apron 25 is equipped with two rectangle archs 251 that are used for spacing exercise assembly, and two rectangle archs 251 of apron 25 are on the outer wall of apron 25 symmetric distribution.

In the using process, the first rotating shaft 22 can rotate along the center line of the first rotating shaft 22 relative to the sixth support 21, the first connecting rod 24 is driven by the first rotating shaft 22 to also rotate along the center line of the first rotating shaft 22, and as the limiting support 23 is fixedly connected with the sixth support 21 and the limiting support 23 is arranged at the left lower part of the first rotating shaft 22, the first connecting rod 24 is limited by the limiting support 23 and can only rotate in a first quadrant formed by horizontal and vertical directions, when a user needs protection, the first connecting rod 24 is in a horizontal state, and the user is protected in the using process; when the protection is not needed, the first connecting rod 24 is in a vertical state; when it is desired to exercise using the exercise assembly on the first link 24, the exercise assembly can be used to exercise by releasing the cover plate 25 from its position.

Referring to fig. 5, the exercise assembly includes a first sliding block 26 movably sleeved on the cover plate 25, the first sliding block 26 has two first sliding grooves 33, in an initial state, the two first sliding grooves 33 respectively correspond to two rectangular protrusions 251 for accommodating the cover plate 25, one side of each of the two first sliding grooves 33 is provided with a sliding groove opening 32, the sliding groove openings 32 are used for enabling the first sliding block 26 to slide back and forth in a left-right direction relative to the cover plate 25 when the first sliding block 26 rotates relative to the cover plate 25 so that the two rectangular protrusions 251 of the cover plate 25 are located in the corresponding sliding groove openings 32, the first sliding block 26 is fixedly sleeved with a handle 27 for providing a grip for people, and the first sliding block 26 is provided with two ventilation members symmetrically distributed about a horizontal center plane of the handle 27. The design of the cover plate 25 and the first slider 26 enables a user to choose to fix the first slider 26 or exercise by means of the first slider 26, when protection is needed, the first slider 26 is fixed to enable the grab handle 27 to provide a stable support for the user, when exercise is needed, the first slider 26 is rotated to enable the first slider 26 to be separated from the cover plate 25 from the chute opening 32, constraint of the cover plate 25 on the first slider 26 is removed, then the hand drives the first slider 26 to slide relative to the first connecting rod 24 along the first connecting rod 24 to exercise the hand, and meanwhile, the ventilation component is used for completing air flow to take away heat generated by exercise and blowing air to the design direction.

Referring to fig. 4, a second sliding groove 28 is provided in the first slider 26, two slider protrusions 241 are provided on a vertical center plane in the front-rear direction of the first connecting rod 24, the two slider protrusions 241 of the first connecting rod 24 are symmetrically distributed about a horizontal center plane of the first connecting rod 24, the ventilation component includes a tension spring 29 connected between the slider protrusions 241 and an inner wall of the second sliding groove 28, a first ventilation duct 35 is provided at the horizontal center of the slider protrusions 241, the first ventilation duct 35 on the left side passes through a channel provided inside the first connecting rod 24 to communicate with the outside, and the first ventilation duct 35 is disposed in an inclined manner with a high left side and a low right side; the rectangular protrusion 251 of the cover plate 25 on the upper side is provided with a second air duct 36, the first air duct 35 on the right side penetrates through the channel arranged inside the first connecting rod 24 to be communicated with the second air duct 36, the second air duct 36 penetrates through the rectangular protrusion 251 to be communicated with the outside, and the second air duct 36 is obliquely arranged in a manner of being low on the left and high on the right.

When the first sliding block 26 slides relatively to the cover plate 25, one side of the extension spring 29 connected with the two second sliding blocks 34 is compressed and one side is extended, so that a user needs to overcome the extension spring 29 to complete the exercise, meanwhile, when the first sliding block 26 slides relatively to the cover plate 25, the volume of the space where the two extension springs 29 are located changes, because the gap between the cover plate 25 and the first sliding block 26 and the gap between other parts are difficult to coordinate the balance of the gas when the first sliding block 26 slides, most of the gas flows along the corresponding first ventilation pipeline 35, the gas flowing along the left first ventilation pipeline 35 directly flows to the outside and blows to the elbow position of the user during the exercise, the heat brought by the sliding friction of the first sliding block 26 is taken away, the air is brought to the elbow part of the user, and the flow amount of the gas is proportional to the exercise frequency of the user, so that the small air blowing during light exercise can not bring the influence of large air blowing on the human body of a user; because second air passage 36 is the high slope setting in the low right side in a left side for the flow of air blows the upper right side, and user's face is in the position that the gas that flows out from second air passage 36 blows to under most of the circumstances, brings for user's face and blows, when making take away the heat that first slider 26 sliding friction brought, brings for user's face and blows, increases the recreational time of lengthening the exercise of taking exercise, with this reinforcing exercise effect.

The working principle is as follows: during the installation, the fourth support 18 is attached to the ground, and then the fourth support 18 is fixedly connected with the ground through the fixing bolt 19, so that the device is fixed on the ground, the borne force can be stably guided to the ground by the third support 10 and the fourth support 18, and the device is stably supported by the reaction force of the ground.

When the wire rope 20 is subjected to a force, the force is directed to the supporting bolt 13, the supporting bolt 13 directs the force to the supporting nut 14 and further to the first bracket 11, and the first bracket 11 directs the force to the third bracket 10, so that the third bracket 10 bears the force.

The supporting base 16 is in direct contact with a user, the user places the buttocks on the supporting base 16, then the feet are separated from the ground, the supporting base 16 bears all the force transmitted by the user, then the supporting base 16 guides the force to the fixed hanging ring 17, the fixed hanging ring 17 guides the force to the steel wire rope 20, and the arc-shaped bulge of the supporting base 16 supports the user.

When the user needs protection, the first connecting rod 24 is placed in front of the body of the user in a horizontal state, and protection is provided in the using process; when the protection is not needed, the first connecting rod 24 is in a vertical state; when the user wants to exercise with the handle 27, the first slider 26 is rotated to separate the first slider 26 from the sliding slot opening 32 to release the restriction of the cover 25 to the first slider 26, then the hand drives the first slider 26 to slide relative to the first connecting rod 24 to exercise the hand, when the first slider 26 slides relative to the cover 25, one side of the extension spring 29 connected with the two second sliders 34 is compressed and one side is extended, meanwhile, when the first slider 26 slides relative to the first connecting rod 24, the space volume of the two extension springs 29 is changed, so that the air flows along the corresponding first ventilation pipe 35, the air flowing along the left first ventilation pipe 35 flows to the outside directly to blow to the left upper part due to the inclined left-right arrangement of the first ventilation pipe 35, namely the elbow position of the user when exercising, the air flowing along the right first ventilation pipe 35 is guided to the second ventilation pipe 36, since the second air duct 36 is inclined so as to be low on the left and high on the right, the air is guided to the upper right, i.e., the position of the face of the user in most cases.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.