Protruding type retraction system

Abstract

The invention provides a retraction system. The retraction system comprises a shell; a flexible material, such as a rope, a rope, a thread, a strap, a braid, a chain or any other material suitable for use as a flexible shoulder strap (hereafter collectively referred to as a rope); two or more apertures within the housing; the spring mechanism is matched with the rope to work, when the spring mechanism is subjected to pressure, the redundant rope extends out of each hole through the spring mechanism, and when the pressure is released, the redundant rope retracts into the retraction system; a connection portion connecting the rope coming out of the one hole to another rope leaving the other hole; and an underside of the retraction system having means for attaching the retraction system to existing equipment.

Description

Technical Field

[0001] The present invention belongs to the field of spring-biased retraction systems, which use shoulder pads made of soft and bendable materials, and the shoulder pads are attached to or added to existing embodiments. We claim the priority of the provisional patent application with application number 63 / 475,161 filed on October 20, 2022. This is a conversion of this provisional patent application. Background Art

[0002] When carrying items, there are sometimes situations where a third hand is needed to hold the item. Since there is usually no option of a third hand, it may be advantageous to be able to carry at least one item using a shoulder strap. The item being carried does not need to be held by hand or balanced; instead, the item can be carried on the shoulder, or for example, in the case of using a cross-body strap, the user can carry the item using the shoulder and neck instead of both hands. An example of practical application is a person with a large handbag who also needs to carry two large shopping bags in addition to their large handbag. In fact, most handbags come with shoulder straps, so at least the item can be carried without using hands. This allows the user to carry all three larger items at the same time. The present invention allows for hands-free carrying of larger items that might otherwise need to be carried by hand or balanced, thus freeing up the hands for other uses.

[0003] Sometimes we have to carry items that are difficult to grasp, and if we try to carry or balance these items by hand, the items become top-heavy and may drop and get damaged. For example, when carrying a laptop computer, there is no handle available for carrying purposes. Since the laptop computer is held vertically, the laptop computer can be clamped between the fingers and lifted by hand by holding the upper point of the laptop computer with the fingers. The top of the laptop computer can easily slip out of the user's fingers and collide, which may cause serious damage to the laptop computer. In the case where the user refuses to adopt the hands-free option, the present invention creates a grip for carrying similar items, where the grip allows the user to firmly hold the laptop computer.

[0004] In the above situations, the user may conclude that it would be easier to carry the laptop computer if it were firmly attached to their shoulder or the area between the shoulder and neck. In this case, they can extend the shoulder pad from the retraction system and place the shoulder pad on their shoulder or the area between the shoulder and neck, thus freeing up the hands for other uses.

[0005] Carrying large and bulky items like a laptop computer can be tiring, and the user may simply not want to carry the laptop computer by hand, and carrying the laptop computer using the shoulder or the area between the shoulder and neck would make them feel more comfortable. The present invention provides this option for the user.

[0006] It is a common practice to carry a laptop computer in a carry-on bag or backpack. This makes sense in some cases, but can cause unnecessary inconvenience in others. In some practical situations, using a bag or backpack is cumbersome; it is slow because one has to carefully place the laptop computer into the bag; and it is bulky, and after arriving at the destination, one also needs the necessary storage space to store the bulky bag or backpack. Examples of such situations include the following: 1. Walking from the office to a meeting room on a workday, or to another location within the same office. 2. Walking from a college dormitory to a class where there are no facilities for actually storing a bag or backpack. 3. When taking public transportation such as a bus, train, or plane, one can sit and open the laptop computer without having to find space for a bulky bag or backpack. Additionally, it is difficult to remove a backpack from such transportation devices in a cramped space. 4. Walking from one room to another within a house. These are just some examples of when such a device would be beneficial.

[0007] Another feature of the present invention is that when not in use, it does not hang down and interfere with daily life. Although some bags have such a feature, this feature has not been used on items that do not have built-in space for it inside. The laptop computer has no attached shoulder strap and shoulder pad; adding the present invention to the device can achieve hands-free carrying and prevent the strap from hanging down when not in use, which can be achieved simply by adding the present invention to the laptop computer.

[0008] When added to a laptop computer or other typing device, the present invention will create a typing angle for the user. This typing angle corresponds to the typing angle on most desktop keyboards, which is 5° to 14°. This typing angle is preferred for typing so that the user's wrist does not stay in a downward position for a long time.

[0009] The retraction system can be added to any device or to any item that needs to be carried. An industrial-grade double-sided tape can be used to apply the system. When adhering the retraction system to a device, it is preferable to use a foam double-sided tape as the foam is used to fill surface irregularities and achieve a smooth attachment, even when the surface without the foam is not suitable for such an attachment. Using this adhesion process, the retraction system can be applied to any nearly flat surface of an item that needs to be carried, in which case a hands-free option may sometimes be required. Additionally, the retraction system provides a grab-and-go feature, in which case the device can be firmly grasped and carried without the hands-free option. The handle is located on the top section of the laptop via a hinge, so it is the only handle for a laptop that needs to be balanced so that the laptop does not become top-heavy or pinch between fingers when carried by hand.

[0010] The retraction system can also be used as an accessory for other applications such as tablets, music boxes, stenographer parts, repair equipment or carrying parts, toolboxes or any other item that is typically manually carried at least within a certain distance. There may be a component that has holes for screws to fix the component to another component after the component is made. Then, the consumer can decide whether they want to improve the component they have by adding a grab-and-go feature that enables hands-free carrying when needed. Other retraction systems do not offer this possible option.

[0011] Another feature of this device is that when the retraction system is fixed to a laptop or other typing device, it provides multiple uses for the system. When used with a laptop or typing device, the retraction system creates a typing angle that people like. It also provides the user with the option to quickly and firmly carry the component in a handheld manner that we call grab-and-go. The retraction system also provides the user with a hands-free carrying function when needed, and the feature that the shoulder pad can be retracted to a flat state when not in use. When the retraction system is used with a laptop, it lifts the laptop off the surface, and this lift improves the ventilation of the laptop itself. From the prior art research, it will be seen that no other retraction system provides multiple useful functions for a device.

[0012] One side of this retraction system has a flange, and this side is opposite to the side fixed to the laptop. The flange provides a firm-grip feature for the user's fingers to firmly hold the component by placing the thumb on one side of the component and any combination of the four fingers on the other side of the component in the flange to form a firm grip point.

[0013] There has not been a retraction system that functions as a gripping device for stable handling. Nor has there been a retraction system with gripping features for non-retraction handling. This combination is a new technology and an improvement to the present technology, but it is not obvious.

[0014] There has not been a device developed that utilizes a retraction system to develop a typing angle. Additionally, this also improves the ventilation and heat dissipation of the laptop computer to which the device is fixed. This is a new technology and an improvement to the present technology, but it is not obvious.

[0015] We have not seen such a retraction system that can be attached by an end user to a flat or nearly flat surface. The user can first purchase the item and then decide to add the retraction system at a time when it is considered beneficial to achieve hands-free handling. The retraction system can be added to a finished component, and the attachment is to attach the retraction system to the body of the device to be handled, and after attachment, the retraction system and the body of the device become integrated. This is a significant improvement because after attachment, it becomes a single component, and the body of the item to be handled gains many handling and usage advantages as outlined above. This is a new technology and an improvement to the present technology, but it is not obvious.

[0016] After a comprehensive search of the prior art, it is found that the present invention is a new technology. The following are the search results.

[0017] Patent US2769475A - Douglas Fischer applied for this patent in 1954, which relates to two retractors that are attached to an external belt and use wheels to retract the belt or rope. The retractors are located at opposite ends of the box, and each retractor is pulling on a flexible material that enters the implementation, which houses a spring biasing mechanism that can apply a retraction force to the flexible material to pull the flexible material (shoulder pad) flat against the implementation. We have improved this technology.

[0018] Patent US3198300A - George Tuttle obtained this patent in 1965. It is applicable to two reels located at opposite ends of the box lid, where each reel has a housing and a spring system for retracting or stretching a belt or rope that bears the weight of the box on the user's shoulder. We recognize Tuttle's technology and have improved this technology.

[0019] Patent EP0385955A - Giovanni Gazzola obtained this patent in 1990. This patent is applicable to the strap for handbags, where part of the strap is exposed to form a handle. After releasing the strap, the hidden part of the handle stored below the top of the bag will extend further from the bag, thus turning the handle into a shoulder strap. Giovanni was the first to propose a multi - purpose retraction system. This technology is also a multi - function retraction system. Like others before, Giovanni required the implementation scheme to which the retraction system is attached, and it was manufactured specifically to adapt to this implementation scheme.

[0020] US Patent US5897039 - Kevin Swanke obtained this patent in 1999. This patent is applicable to the shoulder straps attached to the opposite ends of a box. A retraction spring system is attached to each end of the shoulder pad, and these two retraction systems are fixed to the implementation scheme. Swanke's invention does allow the retraction system to be added to the implementation scheme, but his invention is not part of the implementation scheme, does not provide multiple uses of the implementation scheme, and requires an attachment device within the original implementation scheme to facilitate the attachment of the retraction device.

[0021] US Patent US5294029A - This patent was awarded to Nobuyoshi Shimura in 2004, with a priority date of 1999. This patent is applicable to a retraction device added to the side wall of a box, and the strap extends from the retractor and is clamped on the other side of the box. The strap is pulled out from one end of the box, extends above the box, and is attached to the other side of the box. Then, when stretched, the retractor will extend to fit the user's shoulder. This is not user - friendly for consumers because it requires the user to pull out the strap, lock the strap at the desired size, attach it to the other side of the box, and then move the shoulder pad to the center position for use on the shoulder. Most likely, the strap does not reach the desired length, and the brake needs to be released again to lengthen or shorten the strap to the actual desired size, and then the shoulder pad needs to be recentered. Our system is much simpler. Pull out the strap, place it on the shoulder or the shoulder and neck area, and you're ready to go.

[0022] US Patent US7059504B2 - Gregory Suggs applied for and subsequently obtained this patent in 2003. This patent is applicable to an extendable shoulder strap for a golf bag. The main improvement of this technology is that Suggs made the retraction system have a locking function, so that according to the user's needs, the strap will not retract or stretch. Suggs' strap only comes out from one side of this implementation scheme, and this implementation scheme is built into the golf bag itself.

[0023] Patent IIS8123092 - This patent was obtained by Richard Krulik, with a priority date of March 6, 2002. It is applicable to a retractable shoulder strap for a suitcase. In this case, the mechanism is built into the case, where the retraction system belt extends from both of its sides, and where the extended parts are at the opposite ends of the device to form a sling for the user to place on their shoulders to carry such a bag; and when the tension is removed from the belt, one or more retraction systems retract the belt from each end, thus preventing the belt from hanging down from the case. Krulik requires two housings, and each housing has at least two springs. This system is built into the implementation and is not attachable, only providing the function as a sling when the user needs it. And we have provided many more unique features.

[0024] Patent US9104377B2 - Rekuc discloses the use of microfiber lines within a retraction system located within a suitcase or a cover. He also discloses the use of magnets within a shoulder pad to which the retraction system applies a retraction force. However, we do not use microfibers, this implementation is not located within the body of another implementation, and there is no cover.

[0025] Patent US9730507B2 - This patent was obtained by Eric Wendler and is applicable to an adjustable shoulder strap that uses a wire to attach a shoulder pad to a retraction system and uses perforated flexible material on one or both sides. The holes in the material surround the wire, and as the retraction system extends, the perforated flexible material slides on the wire in a bellows manner. Its purpose seems to be to expand the appearance of the wire and provide a potential advertising area on the side walls of the stretched flexible material. However, we do not adopt any of this technology.

[0026] During the search for prior art, we found that there has never been such a retraction system that has two outlets on a component attached to an existing component. Adhesives have not been used to attach the retraction system to an existing implementation. There has never been such a retraction system that provides a grip for quick handling, thus firmly holding the retraction system implementation and the item being carried. Flanges on the retraction implementation have not been adopted before to improve the grip on components.

[0027] No retraction system has improved the typing angle or provided a ventilation function for a laptop when in use. L-shaped brackets have been adopted on the retraction system body before to counteract the cantilever effect exerted on this body when using the sling part of the body. Summary of the Invention

[0028] As mentioned in the claims below, the retraction system is such a system where the flexible material is a rope, cord, wire, chain, belt, webbing, or any other flexible material that can be drawn out from the retractor body. According to our picture, this drawing is accomplished by a spring-actuated pulley or, in other embodiments, by another device such as an electric motor, but not limited to this. The flexible material does exit the mechanism at one point and there is at least one other exit point where another flexible material exits and these two flexible materials are connected at a point. The retraction system is capable of drawing out the excess material from both sides inside the retraction system mechanism while the remaining external material abuts against the mechanism. When drawing out the flexible material stored inside from both sides, a continuous connecting portion is formed where people wear the flexible material on the shoulders or carry it on their bodies like a handbag strap or a crossbody bag, but both ends of the connected material are connected to the retraction system embodiment.

[0029] In one version, the flexible material connected from one end of the retraction system to the other end can be the same flexible material. A sling on the user's shoulder or shoulder and neck area can be made of this material, or shoulder pads penetrated by the same flexible material can be provided.

[0030] The flexible material connected from one end to the other end may have different material bodies between the two sections of flexible material, and this material may be similar to a shoulder pad. Here, the body of one flexible material coming out from one side of the retraction system is connected to the shoulder pad, and the other flexible material coming out from the other side of the retraction system is connected to the other side of the shoulder pad; and the connection of the flexible material in this way makes the material into one component.

[0031] When the flexible material extends out from the retractor, the material forms a sling for wearing on the shoulders or carrying on the body, but this flexible material may retract into the mechanism, thereby reducing the size of the sling or disappearing completely until it is drawn out again. The shoulder pad and a certain part of the flexible material are pulled against the outside of the retraction system while the remaining flexible material is pulled into the retraction mechanism.

[0032] This mechanism can be spring-biased, where the spring is used in a pulley system with a slider and the rope passes through or around the slider to pull the flexible material back into the mechanism. An electric motor and a spindle, or a spiral spring, or any other method of pulling this flexible material into the mechanism related to the retraction of the flexible material are used in other variants of the retraction system.

[0033] Conversely, we have such a version where the flexible material coming out from the mechanism forms a sling-like device through an electric motor, and the electric motor rotates a reel to wind the flexible material into or out of the mechanism. In another variant of the reel-actuated retractor, the reel can be spring-biased and does not require an electric motor to retract the flexible material.

[0034] When attached to a laptop, the retractable system protrusion raises the laptop off the surface on which it is placed, thereby increasing ventilation under the device. Many laptops dissipate heat through fans and ventilation holes in the bottom of the computer, and this elevation of ours increases the ventilation efficiency of the ventilation holes.

[0035] The retractable system protrusion attached to a laptop can be used to hold the laptop by hand, thereby creating a gripping point for the laptop and the retractable system. The user's thumb can be wedged into the front and back sides of the laptop, so that there are up to four fingers under the protruding retractable system attached to it, forming a clamping grip on the laptop. In some versions, there are flanges on the back side of the retractor, which enhance the grip of the four fingers on the retractable system when the user firmly clamps the laptop with the thumb to hold it.

[0036] The same gripping state can also be achieved by tilting the side used for gripping, so that up to four fingers converge towards the protruding body of the device into the device, and the thumb of the hand clamps the laptop, forming a clamping grip state.

[0037] The protruding retractable system protrudes from the device to which it is attached. Among them, this protruding element can be used for alternative uses in addition to forming a shoulder strap, such as creating a typing angle for the device when there is a typing function inside the device.

[0038] The protruding retractable system protrudes from the device to which it is attached. Among them, this protruding element can be used for alternative uses in addition to forming a shoulder strap attached to the back side of the laptop, such as raising the laptop off the surface on which it is placed. This elevation increases the airflow under the laptop for heat dissipation purposes; and allows the laptop to have bottom heat dissipation ventilation holes to increase ventilation efficiency.

[0039] In our first version of the protruding retractable system, the retractable system is attached to the back side of the laptop, near the hinge of the laptop; when the shoulder strap is pressed, the rope and the shoulder strap extend through the hinge. When the pressure is released, the rope and the shoulder strap retract above the hinge.

[0040] In our first version, the attached mechanism is attached by an adhesive, while other versions of the retractable system may be attached by screws, rivets, clips, or any other known device for fixing the secondary device to the implementation.

[0041] In a preferred embodiment, we used an adhesive; while there are many adhesives available, we employed a foam-based adhesive to compensate for surface differences through the adhesive foam, enabling a firm bond to be achieved even on the uneven surfaces of the embodiments to be attached.

[0042] When using the retraction system on the back side of a laptop computer, our initial version was manufactured for use thereon. The retraction system lifts the laptop computer off the surface and enhances the ventilation efficiency of the laptop computer by having its vents on the bottom side of the laptop computer. Brief Description of the Drawings

[0043] Figure 1 - A top side view showing the housing of the retraction system mechanism, with a strap on one side of the housing and a flange for quick-grip handling on the other side.

[0044] Figure 2 - This is the bottom side of the same housing, and it can be easily seen that the tape protective covering is being peeled off from the adhesive to attach to a secondary device, such as a laptop computer.

[0045] Figure 3 - Here, an oblique perspective view of the top side of the retraction system housing is shown, along with a view of the flange on the lateral side opposite the shoulder pad and the rope outlet.

[0046] Figure 4 - A view of the internal mechanism on one side of the retraction system, with the same mechanism on the other side. The spring is attached to a slider, which acts as a pulley, the rope is wound around two wheels, the rope is attached inside the internal body of the retraction system, and the outlet hole is for the rope to enter and exit the retraction system body.

[0047] Figure 5 - A close-up view of the same internal mechanism on one side of the retraction system, with the rope under tension at this time. When the force applied to the rope is less than the spring pressure being applied, the rope tends to retract into the retraction system housing.

[0048] Figure 6 - Here, the retraction system fixed to the laptop computer can be seen, with the rope and the shoulder pad extending from the mechanism, as Figure 5 shown, and the shoulder pad and the ropes on both sides form a triangle, which can be placed on the user's shoulder, or slung across the body and placed on the user's shoulder and neck.

[0049] Figure 7- shows a side view of a retraction system mechanism fixed to a laptop placed on a flat surface. It can be seen how the retraction system mechanism raises one side of the placed laptop and how a V-shaped lift is formed under the laptop for ventilation. It also creates a typing angle of 5° to 15°, just like most desktop keyboards. Detailed Description

[0050] As much as possible, the same reference numerals will be used throughout the drawings to refer to the same or similar components. The present invention is a retraction system to be attached to an existing device. In these drawings, the device is a laptop. The existing device is referred to as a finished component sold without being configured with a retraction system, whereby the consumer attaches the retraction system after purchasing the device; and the device is usable without the retraction system attached. Such attachment is an optional improvement.

[0051] In Figure 1 a top perspective view of such a retraction system is shown. There are a body (100), a top (101), a visible flange (108), a strap (103), and a screw (105). It will be seen that the retraction system body (100) has a spring pulley system for stretching a cord (112), and cords (112) attached to both ends of the retraction system body (100).

[0052] In Figure 2 the bottom side of the retraction system body (100) can be seen, where the bottom surface of the same component (102) can be seen. Here there is an adhesive with a protective cover, and the protective cover is being removed from the adhesive (106); and the strap (103) can be seen from the other side of the retraction system, as Figure 1 shown. After removing the protective film of the adhesive (106), the retraction system (100) can be attached to a secondary device selected by the user. In this case, it is applied to a laptop. The retraction system body is flipped as Figure 1 shown and the adhesive is applied to the laptop surface. The adhesive is a very high adhesion and fast-drying foam tape of the 3M series of industrial double-sided tapes (referred to as the very high bond (VHB) series). The exposed screws are only for assembling the retraction system and not for attaching the retraction system to the existing device.

[0053] Figure 3 is a side viewing angle of the top side of the retraction system, which is the same as the view shown in Figure 1 The lateral side of the retraction system body (100) without the strap is clearly visible, and the flange (108) is visible on this side. When the retraction system body (100) is attached to the existing body, it can be seen how four fingers are placed into such a flange (108) for the purpose of gripping and how the gripping is enhanced by the presence of such a flange (108).

[0054] In Figure 4 it is possible to see the interior of the retraction system mechanism without the covering (101). There is a spring (110) attached to the retraction system body (100), and the other end of the spring (100) is attached to a slider (111) via a post (114) connected to one end of the slider (111). The slider (111) is a pulley-like system having a large wheel (115) and a small wheel (116) around which a cord (112) rotates. The cord (112) starts fixed to the body at a fixed post (117), goes around the small wheel (116), retreats around a fixed post (118) attached to the retraction system body, retreats to the slider (111) and goes around the large wheel (115), rises up to the top of the body and exits through a hole (119). This is the state when the components are stationary. When a force greater than the strength of the spring (110) is applied, the spring stretches and the slider moves upward along the retraction system body while the cord (112) is pulled out of the hole (119). In this embodiment, the weight of the laptop (200) is applied to the shoulder pad (103), pulling the slider (111) upward, thereby reducing the amount of cord (112) within the system. This action occurs on both sides of the retraction system body (100), and the cord (112) exits through two holes (119).

[0055] In Figure 5 it is possible to see that when a force is applied to the shoulder pad (103), the state of the mechanism is that the cord (112) is pulled and the cord rotates around the small wheel (116) and the large wheel (115), causing the slider (111) to move upward toward the hole in the body. Through close-ups of the individual parts, a better view of the mechanism is obtained. The spring (110) is attached to the slider post (114), both the large wheel (115) and the small wheel (116), the cord (112) rotates around the fixed post (118), and at this moment the cord (112) is minimized within the interior of the retraction system inner body (100).

[0056] From Figure 4 transitioning to Figure 5 the result (if referring to Figure 6 where the retraction system body (100) is attached to the laptop body (200) by an adhesive (106)) is that the cord (112) is attached to the shoulder pad (103) and they extend as much as possible. It can also be seen that the combination of the cords (112) on both sides of the retraction system body (100), the shoulder pads (103), and the retraction system body (100) forms a sling at the center of these parts, and this sling is suitable for placing the shoulder pad (103) on the shoulder, or slinging it around the neck and placing it on the other shoulder. In addition to the extension of the cord (112), it can also be seen as Figure 3How the flange (108) shown better accommodates the user's four fingers, and how the thumb extends across the hinge portion (201) of the laptop to the other side of the laptop away from the retraction system, where the thumb presses the laptop against the retraction system, thereby forming a firm grip on the laptop (200) when the user does not wish to use Figure 6 the hands-free carrying mode, the cord (112), and the shoulder pad (103) shown in. In Figure 6 it can also be understood that one side of the laptop (200) is the hinge side (201), and the side (202) away from the opening and closing of the laptop body.

[0057] In Figure 7 it can be seen that the laptop (200) is in the open position. The laptop (200) is placed on a flat surface (300), and the retraction system body (100) raises one end of the laptop (200), thereby forming an open space (400) under the laptop (200). The open space (400) assists the laptop (200) by allowing air to reach the bottom surface of the laptop. This air helps the laptop dissipate heat, and in many cases, enables the laptop (200) with vents at the bottom to obtain the air required for heat dissipation. In addition, the open space (400) positions the laptop (200) at an angle such that the angle of the keyboard portion (204) of the laptop is between 5° and 15°, depending on the position of the retraction system body (100) and the distance to the opening and closing end (202) of the laptop, as Figure 6 shown. This figure helps to understand that in Figure 6 the retraction system (100) is placed near the hinge side of the laptop (200), and the position of the hinge can be seen at (205). This figure also clarifies the direction in which the shoulder pad (103) should be placed on the laptop (200) so as to correct the typing angle and be able to quickly and firmly grip Figure 6 the flange (108) and the laptop hinge portion (201) in. This is also the correct position of the shoulder pad (103) so as to be able to carry the laptop (200) in a hands-free state, as Figure 6 shown. As Figure 6 shown, the laptop (200) does not experience an accidental opening as would occur when the retraction system is on side (202).

Claims

1. A retraction system, comprising a housing; a flexible material such as a rope, cord, thread, tape, webbing, chain or any other material suitable for use as a flexible shoulder strap, hereinafter collectively referred to as a rope; two or more holes within the housing; a spring mechanism that works in conjunction with the rope, which when pressured will cause excess rope to extend from each hole and when the pressure is released, the excess rope retracts into the retraction system; a connecting portion that connects the rope emerging from one hole to another rope exiting another hole; and a bottom side of the retraction system having means for attaching the retraction system to an existing device.

2. The retraction system according to claim 1, wherein, When attached to an existing device, the retraction system protrudes from the existing device.

3. The retraction system according to claim 2, wherein, The retraction system attached to the existing device becomes part of the device.

4. The retraction system according to claim 2, wherein, The device is a laptop computer or a tablet computer, hereinafter collectively referred to as a laptop computer.

5. The retraction system according to claim 1, wherein, The device has at least three walls and two ends, wherein one wall is attachable to an existing device; wherein one wall has a hole for the rope to enter and exit the retraction device; wherein the ropes are connected directly or indirectly; wherein the rope outside after retraction can extend to form a sling for carrying the retraction device and the existing device attached thereto on the shoulder, and there is a back side of the device that helps to hold the retraction system when the retraction system is attached to the device.

6. The retraction system according to claim 1, wherein, The rope entering and exiting one of the holes is a single rope connected to the rope entering and exiting the other hole.

7. The retraction system according to claim 6, wherein, The rope has a shoulder pad attached thereto, and wherein the shoulder pad is integral with the rope.

8. The retraction system according to claim 5, wherein The retraction system has a first rope entering and exiting one hole and a second rope entering and exiting another hole, and the ropes are joined together by a shoulder pad, and the ends of the ropes are connected to the inside or on the shoulder pad, thus forming a connecting part of three components.

9. The retraction system according to claim 5, wherein, The retraction system has a back side that helps to hold it when the retraction system is attached to the device, and the holding method includes a flange on the back side for a finger to hold the retraction system.

10. The retraction system according to claim 1, wherein, The retraction system has a bottom side that has means for attaching the retraction system to an existing device, and the attaching means is a foaming adhesive.

11. The retraction system according to claim 10, wherein, The retraction system is made of a plastic such as styrene or polycarbonate that has high adhesiveness to the adhesive.

12. The retraction system according to claim 4, wherein, The retraction system is attached to a computer, wherein the attachment is near the hinge of the laptop computer; when stressed, the strap passes through the hinge, forming a triangle with the attached ropes; and the triangle is a sling for the device user to carry the laptop computer on the shoulder or the neck and shoulder.

13. The retraction system according to claim 4, wherein, The retraction system is attached to a laptop computer, wherein the attachment of the retraction system incorporates the retraction system into the embodiment of the laptop computer.

14. The retraction system according to claim 13, wherein, The retraction system is integrated into the embodiment of the laptop computer, and the integration forms a protrusion on the back side of the laptop computer embodiment; and when the back side of the laptop computer is placed on a flat or nearly flat surface, the protrusion on the laptop computer causes the bottom of the laptop computer to be angled.

15. The retraction system according to claim 14, wherein, When the dorsal side of the laptop is placed on a flat or nearly flat surface, the protrusion on the laptop angulates the bottom of the laptop, wherein the angle corresponds to an angle of 5° to 15° formed by the protrusion on the laptop with respect to the keyboard of the laptop.

16. The retraction system according to claim 14, wherein, When the dorsal side of the laptop is placed on a flat or nearly flat surface, the protrusion on the laptop angulates the bottom of the laptop, wherein the angle on the laptop raises the computer from the nearly flat surface and opens an air flow passage to the bottom surface of the laptop.

17. The retraction system according to claim 1, wherein, The retraction system includes a housing; a flexible material such as a cord, rope, thread, tape, webbing, chain or any other material suitable for use as a flexible shoulder strap, hereinafter collectively referred to as a cord; two or more holes in the housing; a spring mechanism that works in conjunction with the cord, which, when pressured, will cause excess cord to extend from each hole and, when the pressure is released, the excess cord retracts into the retraction system, wherein the tension of the spring corresponds to the weight of the laptop to which it is attached, thereby enabling the extension of the cord and the shoulder strap such that the laptop is in any extended position desired by the user, and the laptop does not fall within the fully extended range of the spring.

18. The retraction system according to claim 1, wherein, The retraction system includes a housing; a flexible material such as a cord, rope, thread, tape, webbing, chain or any other material suitable for use as a flexible shoulder strap, hereinafter collectively referred to as a cord; two or more holes in the housing; a spring mechanism that works in conjunction with the cord, which, when pressured, causes the excess cord to extend from each hole and, when the pressure is released, the excess cord retracts into the retraction system; a connecting portion that connects the cord emerging from one hole to another cord exiting another hole; and the bottom side of the retraction system having means for attaching the retraction system to an existing device, wherein the attaching means attaches the devices to each other by a known method such as screws, nails, clips, rivets, but not limited thereto.

19. The retraction system according to claim 1, wherein, The retraction system includes a housing; a flexible material such as a rope, cord, wire, strap, webbing, chain, or any other material suitable for use as a flexible shoulder strap, hereinafter collectively referred to as a rope; two or more holes within the housing; a spring mechanism that works in conjunction with the rope and, when pressured, causes excess rope to extend from each hole and, when the pressure is released, the excess rope retracts into the retraction system; a connecting portion that connects the rope exiting one hole to another rope exiting another hole; and a bottom side of the retraction system having means for attaching the retraction system to an existing device, wherein the retraction system has at least four walls, one of which is the bottom side that contacts the surface of the device to which it is attached, another of which is the top side of the retraction system, and two sides are laterally disposed on the retraction system and, when the retraction system is fixed to the device for carrying, both sides are on the lateral walls of the device; wherein one lateral side has a hole for the rope to enter and exit the retraction mechanism, and the other lateral side aids in gripping the device by means of a flange that projects above the lateral side opposite the rope exit hole and above the top side of the retraction system.

20. The retraction system according to claim 1, wherein, The retraction system includes a housing; a flexible material such as a rope, cord, wire, strap, webbing, chain, or any other material suitable for use as a flexible shoulder strap, hereinafter collectively referred to as a rope; two or more holes within the housing; a spring mechanism that works in conjunction with the rope and, when pressured, causes excess rope to extend from each hole and, when the pressure is released, the excess rope retracts into the retraction system; a connecting portion that connects the rope exiting one hole to another rope exiting another hole; and a bottom side of the retraction system having means for attaching the retraction system to an existing device, wherein the retraction system has at least four walls, one of which is the bottom side that contacts the surface of the device to which it is attached, another of which is the top side of the retraction system, and two sides are laterally disposed on the retraction system and, when the retraction system is fixed to the device for carrying, both sides are on the lateral walls of the device; wherein one side has a hole for the rope to enter and exit the retraction mechanism; and the other side aids in gripping the device by pulling on the other side to make the top side of the lateral wall wider than the bottom side of the wall, wherein the pulling aids in pulling a finger out from the top of the wall towards the bottom of the retraction system, thereby enhancing the grip on the system during hand carrying and gripping.

21. The retraction system according to claim 1, wherein, The retraction system includes a housing; a flexible material such as a rope, cord, wire, strap, webbing, chain, or any other material suitable for use as a flexible shoulder strap, hereinafter collectively referred to as a rope; two or more holes within the housing; a spring mechanism that works in conjunction with the rope and, when pressured, causes excess rope to extend from each hole and, when the pressure is released, the excess rope retracts into the retraction system; A connecting portion that connects a cord emerging from one hole to another cord exiting another hole; and a bottom side of the retraction system having means for attaching the retraction system to an existing device, wherein the device to which it is attached is an electronic typing device.

22. The retraction system according to claim 1, wherein, The retraction system includes a housing; a flexible material such as a cord, rope, thread, tape, webbing, chain, or any other material suitable for use as a flexible shoulder strap, hereinafter collectively referred to as a cord; two or more holes within the housing; a spring mechanism that works in conjunction with the cord such that when pressure is applied, the spring mechanism causes excess cord to extend from each hole and when the pressure is released, the excess cord retracts into the retraction system; A connecting portion that connects a cord emerging from one hole to another cord exiting another hole; and a bottom side of the retraction system having means for attaching the retraction system to an existing device, wherein the device is a device that needs to be carried and the device has a side on which the retraction system can be secured.

23. The retraction system according to claim 1, wherein, The retraction system includes a housing; a flexible material such as a cord, rope, thread, tape, webbing, chain, or any other material suitable for use as a flexible shoulder strap, hereinafter collectively referred to as a cord; two or more holes within the housing; a spring mechanism that works in conjunction with the cord such that when pressure is applied, the spring mechanism causes excess cord to extend from each hole and when the pressure is released, the excess cord retracts into the retraction system; A connecting portion that connects a cord emerging from one hole to another cord exiting another hole; and a bottom side of the retraction system having means for attaching the retraction system to an existing device, wherein the retraction system housing has an L-shaped bracket attached to a lateral wall of the retraction system housing.

24. The retraction system according to claim 1, wherein, The retraction system includes a housing; a flexible material such as a cord, rope, thread, tape, webbing, chain, or any other material suitable for use as a flexible shoulder strap, hereinafter collectively referred to as a cord; two or more holes within the housing; a spring mechanism that works in conjunction with the cord such that when pressure is applied, the spring mechanism causes excess cord to extend from each hole and when the pressure is released, the excess cord retracts into the retraction system; A connecting portion that connects a cord emerging from one hole to another cord exiting another hole; and a bottom side of the retraction system having means for attaching the retraction system to an existing device, wherein the device is a laptop computer and the retraction system is secured to a top portion of the laptop computer such that in the case of carrying the computer by means of the shoulder pad, the computer hangs downwards.

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