Carrier device having adjustable strap and the usage thereof

Abstract

The present invention provides a carrier device having an adjustable strap comprising a carrier body, at least one strap and a reel device is provided. At least one strap movably disposed on one side of the carrier body. The reel device disposed at one side of the carrier body, the reel device having at least one spool, at least one retractable wire and a latch. The retractable wire is coiled on the spool and the latch is disposed on the reel device and releasably limits a relative movement between the retractable wire and the spool which allows an user to quickly and easily adjust the length of the strap to the desired length.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]This invention relates to a carrier device having a retractable wire for the adjustment of the strap on the carrier device to a suitable length.[0003]2. Description of the Prior Art[0004]In general, a carrying bag includes a handbag, a messenger bag, a briefcase or a backpack. The known means to adjust the strap on a carrying bag normally includes various parts (such as a strap hook, a buckle, a clamp, etc.) for adjusting the length of the strap. As for the backpack having a buckle or a strap hook, if the length is to be adjusted, the user is normally required to first pull the strap from the strap hook and release the limit on the strap, and then gradually stretch or retract the strap.[0005]However, the above-mentioned approach users may require time and effort to adjust the length of the strap in order for the strap to fit the user's body and to obtain comfort. Furthermore, the straps in the prior art may not be suita...

AI Technical Summary

Benefits of technology

[0008]It is an objective of the present invention to provide a carrier device having adjustable strap. The carrier device has the function of adjusting the length of a strap quickly and effectively.

[0010]It is yet another objective of the present invention to provide an usage of the carrier devices having adjustable strap. The usage allows the user to quickly and easily adjust the strap to a suitable length.

[0012]The present invention provides a carrier device having adjustable strap. The carrier device includes a carrier body, at least one strap and a reel device. The strap can be movably connected to one side of the carrier body. The reel device is disposed on one side of the carrier body. The reel device has at least one spool, at least one retractable wire and a latch. The retractable wire is connected to one side of the strap and is then coiled on the spool. The latch device is disposed on the reel device and can releasably limit the relative movement between the retractable wire and the spool.

[0016]The present invention further includes a carrier device having a retractable wire. The carrier device further includes a carrier body, at least one strap and a reel device. The strap has two ends and the two ends can be movably connected to one side of the carrier body. The reel device is disposed on the bottom of the carrier body. The reel device has at least one spool, a first retractable wire, a second retractable wire. The first retractable wire is connected to one end of the strap while the second retractable wire is connected to another end of the strap. The first retractable wire and the second retractable wire are coiled in the spool: The latch device is disposed on the reel device and can releasably limit the relative movement between the retractable wire and the spool for the user to quickly and easily adjust the strap to a suitable length.

[0017]The present invention also provides a usage of the carrier device having a retractable wire, wherein the carrier device further includes a carrier body, a strap movably connected to one side of the carrier body and a reel device. The reel device is disposed at the bottom of the carrier body. The reel device has a spool, at least one retractable wire and a latch device. The retractable wire is coiled in the spool. The latch device is disposed on the reel device, and can releasably limit the relative movement between the spool and the retractable wire. The usage of the carrier device includes first pressing the latch device to release the limit on the relative movement between the spool and the retractable wire, adjusting the length of which the strap stretching from the carrier device, and releasing the latch device to limit the relative movement between the spool of the reel device and the retractable wire in order to refrain the strap from stretching or retracting for the user to carry.

Problems solved by technology

However, the above-mentioned approach users may require time and effort to adjust the length of the strap in order for the strap to fit the user's body and to obtain comfort.

Furthermore, the straps in the prior art may not be suitably adjusted correspondingly to the user's body in order to provide comfort and expected length.

However, in the above-mentioned structure, the coil spring will limit the reduction of the baggage's size and the structure needs to be applied in the carrying bag made of rigid material to avoid possible structural damages.

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