DK3066961T3

DK3066961T3 - SLEEPING BAG

Info

Publication number: DK3066961T3
Application number: DK16000880.1T
Authority: DK
Inventors: Casey Sumnicht; Michael Glavin
Original assignee: Exxel Outdoors Llc
Priority date: 2013-03-15
Filing date: 2014-03-14
Publication date: 2019-03-04
Also published as: DE202014010808U1; WO2014152517A1; US20140298584A1; EP3066961B1; AU2014239566A1; EP2967237B1; DK2967237T3; CA2906591A1; US20170127856A1; EP3066961A1; EP3066962A1; US20170127857A1; EP2967237A1

Description

DESCRIPTION

CROSS-REFERENCE TO RELATED APPLICATION

[0001] This application claims priority to U.S. Provisional Patent Application Serial Number 61/793, 109, filed on March 15, 2013.

FIELD

[0002] The field of the disclosure relates generally to sleeping bags. More particularly, this disclosure relates to a zipperless sleeping bag having an opening for providing a user ingress to and egress from the sleeping bag and an integral comforter.

BACKGROUND

[0003] Typically, sleeping bags are used when conventional bed and bedding are unavailable. For example, sleeping bags are used by backpackers, hikers, campers, mountaineers, and other users as portable beds or coverings. Sleeping bags are often durable sleeping coverings that provide a soft surface, insulation and weather resistance.

[0004] Consumers face a difficult task in finding a sleeping bag that is thermally efficient, comfortable, and lightweight. One type of sleeping bag is referred to as a "mummy bag", which tends to be shaped with a lateral taper to approximate the contour of the body of a user and thereby minimize the internal volume of the bag. Mummy bags attempt to conserve heat by minimizing air movement within and from the bag. As a result, mummy bags are often suited for use in outdoor, colder ambient temperatures.

[0005] Mummy bags typically have a small generally elliptical opening suitable for a user's head to protrude from during use. In order to enter typical mummy bags, a user must unzip the bag, and then get inside the bag. Due to the tight fit, the user may find it difficult to fully zip the bag, and furthermore, the zipped bag may be uncomfortable. For example, one drawback to the mummy bag is that some users feel discomfort due to the tight fit of the bag, which may reduce the range of motion of the user of the bag. Such feeling of discomfort may be increased in parts of the user's body that are often moved during sleep such as the arms and legs of the user. Thus, some users are unable to sleep comfortably in mummy bags.

[0006] U.S. Patent No. 4,787,105 relates to a sleeping bag having a snorkel hood and draft curtain. The sleeping bag has upper and lower portions, an access opening in the upper portion, and a breathing opening in the upper portion adjacent one end of the bag. The curtain is provided along the upper portion adjacent the access opening for engaging about the upper torso of the individual and with the lower portion of the bag to divide and seal the bag into head and body compartments. An access opening is provided in the upper surface adjacent the juncture of the body and head compartments, respectively. Opening may be opened or closed by means of a zipper or other means of fastening such as snaps, velcro interconnecting the upper portions of the head and body compartments, respectively.

[0007] U.S. Patent No. 2012/0297539 relates to a sleeping bag system which includes two sleeping bags each having a facial cowl in a hood portion of the bag. Each bag has attachment members on or adjacent the facial cowl. Each attachment member is configured for connection with a corresponding attachment member of the other bag to provide one of a plurality of flexible connections between at least the hood portions when one of the bags is positioned inside the other bag. The attachment members can prevent or minimize shifting of one of the bags inside the other bag. Each bag has a slide fastener operable to at least partially open and/or close the bag along a slit extending from the facial opening.

[0008] Document EP 0 761 145 relates to a sleeping bag having a top part and a bottom part. The top part is sized and arranged to cover a greater area than the bottom part. In other words the top part extends around the bag so that its edges will extend partially under a user's body. This creates a wrap-around effect on the top layer to reduce potential heat loss.

[0009] U.S. Patent No. 2,628,358 relates to a baby carrier. The baby carrier has a body portion with inwardly facing flanges. Fasteners such as zippers attach and detach the flanges.

[0010] Chinese Patent No. CN 202525711 relates to a sleeping bag having side arm sleeves. The sleeping bag has a bifurcated opening for user entry. Zippers provide opening and closing of the opening. The side arm sleeves extend outward form openings which are also opened and closed via zippers.

[0011] Other sleeping bags, such as rectangular-type sleeping bags, are shaped with a generally constant lateral dimension and provide a greater range of motion for the user. Such bags also typically have a zippered portion to allow the user to more easily enter the bag. However, although rectangular bags are often more spacious than mummy bags, one drawback is that the larger internal volume reduces the thermal efficiency of the bag. Moreover, rectangular bags often do no insulate the head, and are typically too large to be thermally efficient. As a result, rectangular bags tend to be better suited for use indoors or in milder outdoor temperatures.

[0012] Accordingly, a need exists for a sleeping bag that is comfortable, thermally efficient, and allows a user to sleep on their stomach, back or side comfortably.

BRIEF DESCRIPTION

[0013] The invention is set forth by the subject-matter of the independent claims. The subject-matter of the dependent claims are embodiments of the invention.

[0014] In one aspect, a sleeping bag generally comprises an elongate shell defining an inner volume sized and shaped to receive a user therein. The shell has a head portion, a foot portion, a middle portion extending longitudinally between the head and foot portions, an overlying portion adapted to overlie the user during use, and an underlying portion adapted to underlie the user during use. A hood is located in the head portion of the shell. The hood includes a catenary opening such that the overlying portion of the shell adjacent the opening is spaced from the underlying portion of the shell when the sleeping bag is laid out for use.

[0015] In another aspect, a sleeping bag generally comprises an elongate shell defining an inner volume sized and shaped to receive a user therein. The shell has an overlying portion adapted to overlie the user during use, an underlying portion adapted to underlie the user during use, and an opening disposed on the overlying portion of the shell. The opening is configured to provide a user ingress to and egress from the inner volume of the sleeping bag. The opening width is less than a width of the shell.

[0016] In an aspect, a sleeping bag generally comprises an elongate shell defining an inner volume sized and shaped to receive a user therein. The shell has an overlying portion adapted to overlie the user during use, an underlying portion adapted to underlie the user during use, and an opening disposed on the overlying portion of the shell. A comforter is attached to the overlying portion of the shell for selectively closing the opening.

[0017] In still yet another aspect, a comforter for use with a sleeping bag includes a pair of longitudinally extending pockets.

BRIEF DESCRIPTION OF THE DRAWINGS

[0018] FIG. 1 is a perspective view of a zipperless sleeping bag having an opening. FIG. 2 is a top plan view of the sleeping bag of FIG. 1. FIG. 3 is a bottom plan view of the sleeping bag of FIG. 1. FIG. 4 is a right side elevation of the sleeping bag of FIG. 1. FIG. 5 is a left side elevation of the sleeping bag of FIG. 1. FIG. 6 is an end view showing a head end panel of the sleeping bag of FIG. 1. FIG. 7 is an end view showing a foot end panel of the sleeping bag of FIG. 1. FIGS. 8 and 9 are enlarged top plan views of a head portion of the sleeping bag of FIG. 1. FIGS. 10 and 11 are top perspective views showing an integral comforter of the sleeping bag of FIG. 1 with the comforter being in an exterior position. FIGS. 12-14 show a user partially placing her hands in pockets formed in the comforter of FIGS. 10 and 11. FIG. 15 is an enlarged top plan view showing the comforter of the sleeping bag fully closing the opening. FIG. 16 is an enlarged top plan view similar to FIG. 15 but illustrating the comforter of the sleeping bag partially closing the opening. FIG. 17 is a perspective view of a zipperless sleeping bag having an opening. FIG. 18 is a top plan view of the sleeping bag of FIG. 17. FIG. 19 is an end view showing a head end panel of the sleeping bag of FIG. 17. FIG. 20 is an end view showing a foot end panel of the sleeping bag of FIG. 17. FIG. 21 is a right side elevation of the sleeping bag of FIG. 17. FIG. 22 is a bottom plan view of the sleeping bag of FIG. 17. FIGS. 23-25 are top views of a zipperless sleeping bag having an opening for user ingress and egress. FIG. 26 is an enlarged top view of another embodiment of a zipperless sleeping bag having an opening for user ingress and egress.

DETAILED DESCRIPTION OF THE DRAWINGS

[0019] Referring now to the drawings and in particular to FIGS. 1-7, a zipperless sleeping bag is designated in its entirety by the reference number 1. The sleeping bag 1 comprises an elongate shell, indicated generally at 3, that defines an inner volume sized and shaped to receive a user therein. The shell 3 has a head portion 5, a foot portion 7, and a middle portion 9 extending longitudinally between the head and foot portions (FIG. 2). In addition, the shell 3 has an overlying portion 11 (FIG. 2), which is adapted to overlie the user during use, and an underlying portion 13 (FIG. 3), which is adapted to underlie the user during use. The zipperless sleeping bag 1 is free from any zippers. The sleeping bag 1 illustrated in FIGS. 1-7 is a "regular" size bag adapted to fit users up to 6 feet tall. It is understood that the sleeping bag 1 can have any suitable size (e.g., shorter, longer, wider, narrower) and can be adapted specifically for men, women or youths.

[0020] The shell 3 further comprises a head end panel 15 (FIG. 6) located in the head portion 5, a foot end panel 17 (FIG. 7) located in the foot portion 7, and a pair of spaced side panels 19 (FIGS. 4 and 5) located in the middle portion 9. The side panels 19 extend longitudinally between the head end panel 15 and the foot end panel 17. The head end panel 15, the foot end panel 17, and the side panels 19 are stitched into the shell 3 between the overlying portion 11 and underlying portion 13. As a result, the panels 15, 17, 19 collectively provide vertical expansion of the shell 3 thus adding inner volume to the sleeping bag 1. It is contemplated that in some embodiments, the panels 15, 17, 19 can be omitted.

[0021] With reference again to FIGS. 1 and 2, a hood, indicated generally at 21, is located at the head portion 5 of the shell 3. The hood 21 is adapted to receive and surround the head of a user. The overlying portion 11, and more specifically the hood 21 in the illustrated example, includes an opening 23. The opening 23 is suitably large enough to provide the user ingress to and egress from the inner volume of the sleeping bag 1. In other words, the user is able to enter and exit the inner volume of the sleeping bag 1 through the opening 23. Thus, no zippers or other fasteners are needed for the user to enter or exit the inner volume of the sleeping bag 1.

[0022] As seen in Figure 8, the opening 23 is defined by a continuous inner edge of the overlying portion 11. Specifically, the opening 23 is defined by a continuous inner edge having an upper edge portion 24, a lower edge portion 26, and two side edge portions 28, 30 (i.e., a right side edge portion (28) and a left side edge portion (30) as viewed in Figure 8). In the illustrated example, each of the edge portions 24, 26, 28, 30 are rounded (i.e., non-straight) thereby defining a rounded opening. As seen in Figure 2, the right and left side edge portions 28, 30 are longer (i.e., have a greater extent) than the upper and lower edge portions 24, 26. Moreover, in the illustrated example, the upper edge portion 24 is slightly longer than the lower edge portion 26. As a result, the illustrated opening 23 is a rounded opening and more specifically, an oval or ovate opening. It is understood that the lower edge portion 26 can be longer than the upper edge portion 24 and still form the ovate opening 23. Other examples of a sleeping bag having an ovate opening are illustrated in FIGS. 18-26.

[0023] In another suitable example, the opening 23 can be generally elliptical (see FIG. 23). In such an example, the upper and lower edge portions 24, 26 can be generally equal in length and the right and left side portions 28, 30, which are longer than the upper and lower edge portions 24, 26, can be generally equal in length. It is understood that the upper and lower edge portions 24, 26 can be omitted such that the right and left side portions 28, 30 connect to each other at their respective ends. In yet another suitable example, the opening 23 can be circular. In such an example, all of the edge portions 24, 26, 28, 30 are generally equal.

[0024] It is understood that, in some examples, the opening 23 can be a different suitable shape (e.g., pentagon, hexagon, octagon). It is also understood that the opening can be partially rounded (e.g., truncated oval, truncated ellipse) or non-rounded (e.g., square, rectangular) in other examples and without departing from some aspects of this invention.

[0025] With reference now to Figure 2, the opening 23 has a first diameter D1 and a second diameter D2. In the illustrated example, the first diameter D1 is the distance between the upper edge portion 24 and the lower edge portion 26, and the second diameter D2 is the distance between the right side edge portion 28 and the left side edge portion 30. While the first diameter D1 is shown longer than the second diameter D2 in Figure 2, which is a relaxed position of the sleeping bag 1, it is understood that the first and second diameters D1, D2 can be readily manipulated as a result of the sleeping bag 1 being flexible. As illustrated in Figure 8, for example, the sleeping bag 1, and more specifically the edge portions 24, 26, 28, 30 defining the opening, can be manipulated so that the first and second diameters D1, D2 are generally equal or the second diameter D2 is longer than the first diameter D1.

[0026] As seen in FIGS. 2 and 8, the opening 23 is defined entirely on the overlying portion 11 of the shell 3. Thus, the opening 23 is spaced from the head end panel 15 and the side panels 19. In one suitable example, the opening 23 is spaced from the head end panel 15 (i.e., the distance from the upper edge portion 24 to the head end panel 15) from about 4 inches to about 13 inches. In the illustrated example, for example, the opening is spaced about 7.5 inches from the head end panel. The opening 23, in one suitable example, is spaced from each of the side panels 19 (i.e., the distance from the right and left edge portions 28, 30 to the respective side panel 19) from about 7 inches to about 12 inches. In the illustrated example, for example, the opening 23 is spaced from each of the side panels 19 by about 8.5 inches. It is contemplated that the opening 23 can be spaced from the head end panel 15 and the side panels 19 by a distance different than those disclosed herein without departing from some aspects of this invention.

[0027] With reference to FIGS. 8 and 9, the head portion 5 of the shell 3 includes a support member 25 disposed between the opening 23 and the head end panel 15 and extending from one of the side panels 19 to the other. The support member 25 is attached (e.g., by stitching) along three of its edges to the shell 3. Specifically, the support member 25 is attached at its edges to each of the side panels 19 and the head end panel 15. As a result, the edge of the support member 25 adjacent the opening 23 is free. That is, the edge of the support member 25 adjacent the opening 23 is not directly attached to the shell 3. The support member 25 is configured to provide support to the head portion 5 of the shell 3 such that the side panels 19. and head end panel 15 of the shell do not collapse and the opening 23 hangs freely. Accordingly, the opening 23 of the illustrated sleeping bag 1 is a catenary opening. As such, the overlying portion 11 of the shell 3 adjacent the opening 23 is spaced from the underlying portion 13 of the shell when the sleeping bag 1 is laid out for use as seen in FIGS. 1 -7.

[0028] In the illustrated example, the support member 25 is made from the same material as the shell 3 (i.e., an inner layer, an outer layer, and an insulation material between the inner and outer layers) but it is understood that the support member can be made from any suitable material or materials. The illustrated support member 25 has a generally constant width along its length. It is understood however that the width of the support member 25 can vary along its length, e.g., to conform to the contours of the sleeping bag 1.

[0029] In the example seen in FIGS. 1-7, the shell 3 tapers toward the foot end 7 to generally conform to the contours of the user, being broadest in the region corresponding to the shoulders of the user and narrowest or tapered in the region corresponding to the feet of the user. The tapered shell 3 provides the user a generally snug fit. By generally conforming to the user's contours when the user is substantially within the inner volume of sleeping bag 1, the sleeping bag 1 minimizes air movement, thus making the bag thermally efficient. The illustrated sleeping bag 1 can be generally categorized as a semi-rectangular bag or a tapered bag. It is understood, however, that in other examples the sleeping bag 1 could have less taper (e.g., a rectangular-type bag) or have greater taper (e.g., a mummy type bag).

[0030] As shown in FIG. 2, the shell 3 has an inner layer 27, which defines the inner volume of the shell 3, and an outer layer 29, which defines the exterior of the shell. The inner layer 27 is adapted to receive a user within the inner volume of the sleeping bag 1. An insulation material (not shown) can be disposed between the inner and outer layers 27, 29 to provide warmth and softness to the sleeping bag 1. The insulation material can be attached to the inner and outer layers 27, 29 of the shell using stitch-lines. It is understood that the inner and outer layers 27, 29 can be any suitable material (e.g., polyester). It is also understood that the inner layer 27 can be made from a material different that the outer layer 29. It is further understood that the insulation material can be any suitable material (e.g., goose down, CLOUDLOFT insulation, DRIDOWN insulation) and that the amount of insulation material can be selected to achieve the desired warmth and softness.

[0031] With reference now to FIG. 3, the illustrated sleeping bag 1, and more specifically the outer layer 29 of the underlying portion 13 of the illustrated shell 3, includes a sleeve (or pocket) 31 for selectively receiving at least a portion of a sleeping pad (e.g., an open cell foam sleeping pad, an inflatable sleeping pad). In use, a suitable sleeping pad (not shown) can be inserted into the sleeve 31 thereby connecting the sleeping pad to the shell 3 of the sleeping bag 1 and inhibiting the sleeping bag and sleeping pad from become disengaged during use. For example, insertion of the sleeping pad into the sleeve 31 inhibits the user of the sleeping bag from rolling off of the sleeping pad. In other words, the sleeve 31 facilitates keeping the sleeping pad beneath the user and thus between the user and the surface upon which the sleeping bag 1 and sleeping pad lie. It is understood that any suitable sleeping pad can be used with the sleeping bag 1. For example, the sleeping pad can be tapered to generally conform to the shape of the sleeping bag 1 or can be generally rectangular. It is also understood that the sleeping pad can have a length greater to, equal to or shorter to the length of the sleeping bag 1. It is further understood that the sleeve 31 can be omitted from some embodiments of the sleeping bag 1.

[0032] With reference still to FIG. 3, a part of the underlying portion 13 of the shell 3, generally corresponding to sleeve 31, is free from insulating material. Thus, insulating material is not provided in the portion of the sleeping bag 1 adapted to receive the sleeping pad. It is understood, however, that insulating material can be provided in this part of the underlying portion 13 of the shell 3. In such an example, the entire underlying portion 13 of the shell 3 would have insulating material. It is also understood that the other parts of the underlying portion 13 of the shell 3 (i.e., parts extending beyond the sleeve 31) intended to overlie the sleeping pad can also be free from insulating material. In such an example, the sleeping pad provides warmth and softness to the underlying portion 13 of the shell 3.

[0033] Referring now to FIGS. 10 and 11, the sleeping bag 1 comprises an integral comforter, indicated generally at 35. In the illustrated embodiment, the comforter 35 is generally rectangular. As a result, the comforter 35 has four side edges. Two of the side edges extend longitudinally with respect to the shell 3 and the other two side edges extend transversely with respect to the shell. A portion of one of the transversely extending side edges is sewn to the inner layer 27 of the overlying portion 11 at a location spaced from the foot end panel 15. In one suitable embodiment, the comforter 35 is sewn to the inner layer 27 of the overlying portion 11 transversely across the width of the shell 3 at a location generally adjacent and below the opening 23. It is contemplated that the comforter 35 can be sewn less than the entire width of the shell. It is also contemplated that the comforter 35 can be affixed to the overlying portion 11 in any suitable manner and location, within the scope of the independent claim. In another example not according to the invention, illustrated in Figure 24, the comforter 335 is disposed on the outer layer 329 of the overlying portion 311. In other embodiments, the comforter 35 can be detachably attached to the inner layer 27 of the shell 3 in any suitable manner, for example, buttons, snaps, hook and loop.

As seen in Figures 10 and 11, the comforter 35 has a width (i.e., the distance between the longitudinally extending side edges) greater than the width of the shell 3. As a result, the longitudinally extending edges of the comforter 35 are capable of extending transversely beyond the extent of the shell 3. In the illustrated embodiment, the comforter 35 has a length (i.e., the distance between the transversely extending side edges) that is approximately half the length of the shell 3. As mentioned above, the illustrated comforter 35 is generally rectangular. In the illustrated embodiment, for example, the length of the comforter 35 is greater than its width. It is contemplated that the comforter 35 can have any suitable size or shape.

[0034] The comforter 35 can be selectively moved from a first or interior position wherein the comforter is disposed within the inner volume of the shell 3 (FIGS. 15 and 16) and a second or exterior position, wherein the comforter is at least partially disposed outside the inner volume of the shell (FIGS. 10 and 11). In the interior position, the comforter 35 at least partially closes the opening 23 to block or otherwise inhibit air flow through the opening and into the inner volume of the shell 3. In FIG. 15, for example, the comforter 35 is shown fully closing the opening 23. As illustrated therein, the comforter 35 can extend beneath and beyond all of the edge portions 24, 26, 28, 30 defining the opening 23 to fully close the opening. In such a configuration, air movement through the opening 23 and into the inner volume of the shell 3 is inhibited. During use of the sleeping bag, the user, including the user's head, would be fully enclosed by the combination of the comforter 35 and the shell 3.

[0035] In FIG. 16, the comforter 35 is illustrated partially closing the opening. More specifically, the comforter 35 extends beneath and beyond the lower edge portion 26, the right edge portion 28, and the left edge portion 30 defining the opening. In addition, the illustrated configuration of the comforter 35 extends beneath and beyond the upper edge portion 24 of the shell 3 defining the opening 23. This configuration, allows the user to partially close the opening 23 without covering or fully covering the user's head. Accordingly, the user can manually manipulate the comforter 35 to close the opening 23 entirely or to close the portions of the opening not occupied by the user's face and/or head.

[0036] Due to the flexibility of the shell 3, the shape of the opening 23 will change as a result of movement by a user within the inner volume of the shell 3. The comforter 35 and opening 23 are both sized and shaped to inhibit the comforter from closing the opening during use. Moreover, the comforter 35 can be manipulated by the user independently of the shell 3. Thus, during use of the sleeping bag 1, the user can move the comforter 35 relative to the shell 3. As a result, the user can wrap portions of themselves with the comforter 35 or the comforter can overlie the user in a generally flat configuration.

[0037] The comforter 35 can be selectively moved to a third position wherein the comforter is almost fully disposed outside the inner volume of the shell. In this third, exterior position, the comforter 35 is pivoted almost 180 degrees, overlying the middle portion 9 and foot portion 7 of the shell. In such a position, the comforter 35 is generally face-to-face with the outer layer 29 of the overlying portion 11 of the shell 3. In this configuration, the comforter 35 adds additional covering for the user's torso and legs. In one suitable embodiment, the comforter 35 has a length sufficient to fully cover the foot portion 7 and middle portion 9 of the shell 3 when in the third, exterior position. FIGS. 10 and 11 do not depict the comforter 35 fully spread out. It is contemplated that the comforter 35 can have different lengths. Moreover, the opening 23 is substantially free of the comforter when the comforter is moved to its exterior position.

[0038] As seen in FIGS. 12-14, the comforter 35 includes a pair of spaced pockets 37 for receiving the arms and hands of the user to thereby provide added warmth to the arms and hands of the user. The pockets 37 can be used in both the interior and exterior position of the comforter 35. The user can use the pockets 37 to manipulate the comforter 35. That is, the user can place one or both arms in the pockets 37 and thereby move the comforter 35 as desired. In the illustrated embodiment, the pockets 37 extend almost the entire length of the comforter 35. It is contemplated that the length of the pockets 37 relative to the length of the comforter 35 can be varied. It is also contemplated that the pockets 37 can be omitted from the comforter 35 in some embodiments.

[0039] The illustrated comforter 35, including the pockets 37, is made from the same material as the shell 3 (i.e., an inner layer, an outer layer, and an insulation material between the inner and outer layers) but it is understood that the comforter can be made from any suitable material or materials. It is also contemplated that the pockets 37 can be formed from materials different than the shell 3 and/or the comforter 35.

[0040] Figures 17-22 show another example of a zipperless sleeping bag, designated in its entirety by the reference number 101. The sleeping bag 101 comprises an elongate shell, indicated generally at 103, that defines an inner volume sized and shaped to receive a user therein. The shell 103 has a head portion 105, a foot portion 107, and a middle portion 109 extending longitudinally between the head and foot portions (FIG. 18). In addition, the shell 103 has an overlying portion 111, which is adapted to overlie the user during use, and an underlying portion 113, which is adapted to underlie the user during use. The shell 103 further comprises a head end panel 115 located in the head portion 105, a foot end panel 117 located in the foot portion 107, and a pair of spaced side panels 119 located in the middle portion 109. The side panels 119 extend longitudinally between the head end panel 115 and the foot end panel 117. The head end panel 115, the foot end panel 117, and the side panels 119 are stitched into the shell 103 between the overlying portion 111 and underlying portion 113. The shell 103 of sleeping bag 101 tapers from a larger width at the head portion 105 to a smaller width at the foot portion 107. A foot box 141 for selectively receiving the feet of a user is located in foot portion 107 of sleeping bag 101.

[0041] A hood, indicated generally at 121, is located at the head portion 105 of the shell 103. The hood 121 is adapted to receive and surround the head of a user. The overlying portion 111, and more specifically the hood 121 in the illustrated example, includes an opening 123. The opening 123 is defined by a continuous inner edge having an upper edge portion 124, a lower edge portion 126, and two side edge portions 128, 130 (i.e., a right side edge portion 128 and a left side edge portion 130 as viewed in Figure 18). The opening 123 is a general oval shape, meaning the upper edge portion 124 is slightly longer than the lower edge portion 126 and the side edge portions 128, 130 are longer than both the upper and lower edge portions. Due to the length of the side edge portions 128, 130, the opening 123 spans most of the head portion 105. The size and shape of the opening 123 facilitate easier user ingress to and egress from the inner volume of the sleeping bag 101.

[0042] Both the overlying portion 111 and the opening 123 are sized and shaped to cooperatively inhibit the edges of the overlying portion 111 defining the opening from folding over during use of the sleeping bag 101. The opening 123 is defined entirely on the overlying portion 111 of the shell 103 and spaced inward from the side panels 119 and head end panel 115. This spacing and the shape of the opening 123 prevents the opening from being expanded or otherwise increase even when the shape of the opening changes as a result of movement by the user within the inner volume of the shell 103. For example, when a portion of the continuous inner edge is displaced, the overlying portion 111 adjacent the opposite portion of the continuous inner edge will resist the movement. Accordingly, the opening 123 will be deformed but will be prevented from opening further. Moreover, the continuous inner edge, which defines the opening 123, is inhibited from folding over onto the overlying portion 111 of the shell 103.

[0043] When introducing elements of the present invention or the preferred embodiment(s) thereof, the articles "a", "an", "the" and "said" are intended to mean that there are one or more of the elements. The terms "comprising", "including" and "having" are intended to be inclusive and mean that there may be additional elements other than the listed elements.

[0044] As various changes could be made in the above constructions, it is intended that all matter contained in the above description and shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

[0045] This written description uses examples to disclose the invention, including the best mode, and also to enable any person skilled in the art to practice the invention, including making and using any devices or systems and performing any incorporated methods.

REFERENCES CITED IN THE DESCRIPTION

This list of references cited by the applicant is for the reader's convenience only. It does not form part of the European patent document. Even though great care has been taken in compiling the references, errors or omissions cannot be excluded and the EPO disclaims all liability in this regard.

Patent documents cited in the description • US61793109A [6001] • US4787105A [0006] • US20120297539A [0007] • EP0761145A [00081 • US2628358A [00091 • CN202525711 [00101

Claims

A zippered sleeping bag, comprising: an elongated casing (3; 103; 203; 403) defining an inner volume and dimensioned and shaped to receive a user therein, the casing having an overlying section (11; 111; 211; 311; 411) arranged to lie above the user during use, an underlying section (13; 113) arranged to lie below the user during use, and an opening (23; 123; 223; 423) disposed on the overlying section (11; 111; 211; 311; 411) of the sheath to provide the user with entry and exit from the sleeping bag (1; 101); and a blanket (35; 335; 435) connected to the overlying section (11; 111; 211; 311; 411) of the casing (3; 103; 203; 403) to optionally close the opening (23; 123; 223; 423), characterized in that the blanket (35; 335; 435) is optionally movable from an interior position in which the blanket (35; 335; 435) is disposed within the inner volume of the casing (3; 103; 203; 403), to an outside position in which the blanket (35; 335; 435) is at least partially disposed outside the inner volume of the casing (3; 103; 203; 403) and overlies at least a portion of the overlying section of the casing (3; 103; 203; 403).

The sleeping bag according to claim 1, wherein the blanket (35; 335; 435) has a width greater than a width of the casing (3; 103; 203; 403).

Sleeping bag according to claim 1 or 2, wherein the blanket (35; 335; 435) is made of the same material as the sheath (3; 103; 203; 403).

Sleeping bag according to any one of the preceding claims, wherein the blanket is permanently connected to the sheath (3; 103; 203; 403).

Sleeping bag according to any one of claims 1 to 3, wherein the blanket (35; 335; 435) is removably connected to the sheath (3; 103; 203; 403).

Sleeping bag according to any one of the preceding claims, wherein the blanket (35; 335; 435) has a length less than a length of the casing (3; 103; 203; 403).

Sleeping bag according to any one of the preceding claims, wherein the blanket (35; 335; 435) is superior to the outer layer of the overlying section (11; 111; 211; 311; 411) of the casing (3; 103; 203; 403) in the outer position.

Sleeping bag according to claim 7, wherein the blanket (35; 335; 435) has a length approximately half the length of the sheath (3; 103; 203; 403).

Sleeping bag according to claim 1, wherein the blanket (35; 335; 435) is sewn to an inner layer of the overlying section (11; 111; 211; 311; 411) of the sleeping bag (1; 101) and includes a pair of extending pockets.

Sleeping bag according to claim 9, wherein the pockets (37) are sized and shaped to receive the arms and hands of a user.

Sleeping bag (1; 101) according to claim 1, wherein the blanket (35; 335; 435) is sewn to an inner layer of the overlying section (11; 111; 211; 311; 411) and transversely across the width of the sheath (3 ; 103; 203; 403) at a location which is generally adjacent and below the opening (23; 123; 223; 423).

A sleeping bag (1; 101) according to claim 1, wherein the blanket (35; 335; 435) includes longitudinally extending edges configured to extend transversely beyond the extension of the casing (3; 103; 203). ; 403).

Sleeping bag (1; 101) according to claim 1, wherein the opening (23; 123; 223; 423) comprises an upper edge portion (24, 124), a lower edge portion (26; 126), a right edge portion, and a left edge portion ( 28; 30; 128; 130), wherein the right edge section and the left edge section are longer than the upper edge section (24; 124) and the lower edge section (26; 126) and where the blanket (35; 335; 435) is configured. to extend beyond and below the lower edge section (26; 126), the upper edge section (24; 124), the right edge section, and the left edge section (28; 30; 128; 130).

Sleeping bag (1; 101) according to claim 1, wherein the blanket (35; 335; 435) is sewn to an inner layer (27) of the overlying section (11; 111; 211; 311; 411) at a location which overall, it is adjacent and below the aperture (23; 123; 223; 423), and is optionally movable to an outside position in which it is rotated nearly 180 degrees and is above an intermediate section (9) and a foot section (7) of the casing (3; 103; 203; 403).