Abstract
Apparatus selectively attachable to the outer case of a cellular telephone or other similarly sized portable device. The apparatus desirably includes a housing containing an elastomeric band that is principally disposed inside the housing when the apparatus is not in use. When the apparatus of the invention is attached to the outer case of a cell phone, a portion of the elastomeric band is manually withdrawn through an opening in the housing and can be releasably latched in place to form a flexible, continuous loop outside the housing. The flexible, continuous loop can be used as a selectively retractable carrying strap when the cell phone or other similar device is not in use. Alternatively, the flexible continuous loop can be used, for example, to support the cell phone around a user's neck for hands-free use when the user is engaged in other activities.
Claims
1. An apparatus useful for suspending a portable device from a body portion of a user or other support structure, the apparatus comprising: a housing with a mutually engageable cover and a body, the body being attachable to a cell phone or to a protective case or cover for a cell phone or another portable device; a flexible elastomeric band disposed inside the housing, the band being accessible through an opening in the housing and having sufficient elasticity and durability to be manually stretchable outwardly through an opening in the housing for a distance sufficient to form a flexible support loop; an array of rotatable pulleys disposed in spaced-apart relation inside the housing, with each rotatable pulley having a periphery contacting and frictionally engaging the elastomeric band to support the elastomeric band in tension when a portion of the elastomeric band is stretched outwardly through the opening in the housing; and wherein the elastomeric band is anchored inside the housing and then wrapped circuitously around the array of rotatable pulleys and a plurality of triangularly shaped spaces are formed between two oppositely disposed sets of pulleys inside the body.
2. The apparatus of claim 1 wherein the elastomeric band has an unstretched length and elasticity selected in cooperation with the rotatable pulleys in the array to sequentially allow the elastomeric belt to be manually stretched when at least one selectively releasable latch is selectively operated to facilitate extension of the elastomeric band relative to the housing.
3. The apparatus of claim 2 wherein the elastomeric hand has an unstretched length and elasticity selected in cooperation with the number, size and placement of rotatable pulleys in the array to sequentially allow the flexible support loop of the elastomeric band to contract back inside the housing when the at least one selectively releasable latch is selectively operated to facilitate contraction of the elastomeric band relative to the housing.
4. The apparatus of claim 1 wherein the elastomeric band has first and second ends anchored inside the housing at two separate anchor points disposed substantially in the center of the body.
5. The apparatus of claim 1 including plurality of sites are disposed inside the body that are coaxially aligned with corresponding sites on an underside of the cover.
6. The apparatus of claim 1 wherein at least the front of the housing is attached to a cell phone or to a protective case for a cell phone by a pad treated with a pressure-sensitive adhesive that is applied to facing surfaces of the apparatus and one of the cell phone or protective case for a cell phone.
7. The apparatus of claim 1 comprising two opposed, spaced-apart latches each connected to a part of the housing.
8. The apparatus of claim 1 wherein the housing and pulleys comprise a moldable polymeric material.
9. The apparatus of claim 1, wherein the number of pulleys is at least eight.
10. The apparatus of claim 1, wherein the portable device is a cell phone.
11. The apparatus of claim 1, wherein the at least one selectively releasable latch is manually engageable and releasable.
12. The apparatus of claim 1, wherein the at least one selectively releasable latch is automatically engaged by rotating to create frictional contact between the elastomeric band and body when a force is relaxed and the elastomeric band is permitted to self-retract.
13. The apparatus of claim 1, wherein a plurality of spacers are provided in the plurality of triangularly shaped spaces.
14. The apparatus of claim 1, where the cover is releasably attached to the body.
15. The apparatus of claim 1 wherein the spacers are wedged-shaped guides.
16. The apparatus of claim 1, further comprising at least one selectively releasable latch.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) The apparatus of the invention is further described and explained in relation to the following drawings wherein:
(2) FIG. 1 is a rear perspective view of one embodiment of the apparatus of the invention with an elastomeric belt fully retracted into the housing except for a small portion that spans an opening in the housing and is manually accessible through the opening;
(3) FIG. 2 is a front elevation view of the embodiment of the apparatus of FIG. 1 with a pressure-sensitive adhesive pad adhered to the front cover of the housing and having a peel-away cover sheet partially removed from the adhesive pad;
(4) FIG. 3 is a right-side elevation view of the embodiment of FIG. 2 with the cover sheet of FIG. 2 removed from the adhesive pad and the adhesive pad adhered to the rearwardly facing surface of a cell phone shown in dashed outline;
(5) FIG. 4 is a rear perspective view of the apparatus as in FIG. 1 with the elastomeric belt extended outside the housing through an opening in the housing;
(6) FIG. 5 is a rear perspective view as in FIG. 4 with the rear cover of the housing removed and rotatable latches positioned to hold the elastomeric belt in the fully extended position relative to the housing, thereby allowing the portion of the elastomeric belt extending outwardly from the housing to relax from the fully extended position;
(7) FIG. 6 is an enlarged detail rear elevation view of the apparatus of FIG. 1 shown substantially as in FIG. 5 with the rear cover of the housing removed and the rotatable latches rotated to a locked positioned to hold the portion of the elastomeric belt disposed inside the housing in an extended position and under tension inside the housing while allowing a portion of the elastomeric belt disposed outside the housing to remain in a comparatively more relaxed position that is not under tension outwardly of the latches;
(8) FIG. 7 is an enlarged detail rear elevation view of the apparatus of FIG. 1 shown substantially as in FIG. 8 with the rotatable latches rotated to an unlocked position to allow the elastomeric belt to contract inside the housing while still maintaining slight tension in an accessible portion of the elastic band that spans an opening in the housing to avoid having slack in the elastomeric belt when retracted; and
(9) FIG. 8 is an enlarged detail rear elevation view of the apparatus of FIG. 1 with the rear cover of the housing removed and the rotatable latches positioned in an unlocked position to allow the elastic band to contract to the greatest extent permitted inside the housing while still maintaining slight tension in the portion of the elastic band disposed inside the housing to avoid having slack in the elastic band.
(10) The reader should understand that like numbers are generally used to designate like parts in the accompanying drawing figures but that the figures are not drawn to scale.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
(11) Referring to FIGS. 1, 7 and 8, apparatus 10 comprises housing 12 further comprising body 16 with selectively removable cover 14, opposing latches 18, 20 and an elastomeric band 22 disposed inside housing 12, with a portion of elastomeric band 22 being visible and graspable through recessed opening 52 cooperatively formed in cover 14 and body 16. Housing 12 of apparatus 10 is desirably formed from a moldable polymeric material such as, for example, high impact polystyrene or another similarly suitable material. Elastomeric band 22 is desirably disposed entirely inside housing 12 (except for the portion of elastomeric band 22 that is visible and graspable 12 when latches 18, 20 are in an unlocked position and elastomeric band 22 is relaxed sufficiently to self-retract into housing 12).
(12) Referring to FIGS. 2 and 3, apparatus 10 is desirably attachable to a portable device such as a cellular telephone 30 (not part of the invention except when the other functional portions of apparatus 10 are incorporated into a body 14 that forms part of the portable device) using an adhesive pad 28 or other similarly effective attachment means permitting use of apparatus 10 as an aftermarket attachment to cellular telephone 30. Adhesive pad 28 of a size satisfactory for this purpose are typically commercially available and provided with a peel-off cover sheet 26 on each side that is removable to expose oppositely facing adhesive surfaces suitable for use in securing body 16 of housing 12 to the back surface of a device such as cellular telephone 20 with which it is intended to be used. When apparatus 10 is ready for use when configured as shown in FIG. 3, with latches 18 and 20 unlatched and elastomeric band 22 disposed in a visible and graspable position but is otherwise fully retracted inside housing 12 (FIG. 1).
(13) Referring to FIG. 4, apparatus 10 is shown with a portion of elastomeric band 22 pulled outwardly away from cover 14 to form a flexible elongated loop of desired size when a force 32 is exerted against the outermost portion of elastomeric band 22 relative to the other portions of apparatus 10. During the expansion of elastomeric band 22 as shown in FIG. 4, latches 18 and 20 are desirably positioned to permit outwardly directed movement of elastomeric band relative to cover 14. When elastomeric band 22 is stretched outwardly to a desired extent, latches 18 or 20 can be manually engaged by the user to prevent self-retraction of elastomeric band 22 back inside apparatus 10. Latches 18, 20 can be configured to be manually engageable and releasable or, alternatively, to automatically engage by rotating to create frictional contact between elastomeric band 22 and body 16 of apparatus 10 when force 32 (FIG. 4) is relaxed and elastic band is permitted to self-retract.
(14) Referring to FIGS. 5-8, apparatus 10 is depicted with cover 14 (FIG. 4) removed to reveal the inside of housing 12 (FIG. 1) as seen looking into body 16. Body 16 preferably further comprises a plurality of rotatable wheels or pulleys (hereafter “pulleys”) 40 around which elastomeric band 22 is positioned for use. Referring to FIGS. 5 and 8, in this embodiment of the invention, each of two opposed ends of elastomeric band 22 comprises a loop 36 that is disposed over one of two spaced-apart anchor posts 37 and then wrapped circuitously around pulleys 40, with the centrally disposed portion of elastomeric band 22 passing between latches 18, 20 and inside wall of body 16, around guide wall 50 (best visible in FIGS. 6 and 7), and across recessed opening 52. A plurality of spaced-apart sites 34 are disposed inside body 16 that are desirably coaxially aligned with corresponding sites on the underside of cover 14 (FIG. 1) that cooperate provide structural support to body 16 and frictional engagement with the underside of cover 14 (FIG. 1). Sites 34 can be used to position posts that are frictionally engageable, for example, with opposed receptacles disposed under cover 14 to provide “snap-fit” frictional engagement between cover 14 and body 16. Alternatively, other selectively releasable attachment means such as screws and cooperatively aligned threaded receptacles can be used to attach cover 14 to body 16 of apparatus 10. Additionally, in another alternative embodiment of the invention described but not depicted in relation to FIG. 8, a plurality of spacers (preferably wedge-shaped guides) can be provided in the triangularly shaped spaces formed between the two oppositely disposed sets of pulleys 40 inside body 16 to avoid tangling of portions of elastomeric band 22 inside housing 12 (FIG. 1) during a sudden release and relaxation of elastomeric band 22 from the position shown in FIG. 5 to the position shown in FIG. 8.
(15) Referring to FIGS. 6-8, rotatable latches 18, 20 are desirably used to provide selectively releasable frictional engagement between elastomeric band 22 and inside wall of body 16. Referring to FIG. 6, latch 18 with touch surface 42, lever arm 44 and pivot post 46 is shown in a “latched” position with lateral projection 48 “pinching” a portion of elastomeric band 22 against body 16 after rotating latch 18 downwardly by the application of manual pressure to touch surface 42 of latch 18 as indicated by arrow 54. Conversely, referring to FIG. 7, latch 18 is shown in an “unlatched position” with lateral projection 48 rotated upwardly as indicated by arrow 56 to release the adjacent portion of elastomeric band 22 from frictional engagement with body 16 to thereby permit self-retraction of elastomeric band 22 back inside housing 12 as shown in FIG. 1.
(16) Other alterations and modifications of the invention will likewise become apparent to those of ordinary skill in the art upon reading this specification in view of the accompanying drawings, and it is intended that the scope of the invention disclosed herein be limited only by the broadest interpretation of the appended claims to which the inventor and/or Applicant are legally entitled.
