Sleeping bag set
The sleeping bag set addresses the need for adaptable thermal insulation and design flexibility by incorporating a detachable blanket, enhancing user convenience and reducing storage needs.
Patent Information
- Application Number
- JP2025119478
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2025-07-16
- Publication Date
- 2025-10-22
- Estimated Expiration
- 2045-07-16
AI Technical Summary
Conventional sleeping bags require multiple types for different environments and seasons, causing inconvenience, increased storage space, and lack flexibility in design and maintenance, especially for users who need to adapt to varying climatic conditions.
A sleeping bag set comprising a sleeping bag body with an upper and lower part and a detachable blanket that can be secured to the outer surface, allowing for flexible adjustment of thermal insulation and design by attaching or detaching the blanket.
The sleeping bag set provides adaptable thermal insulation, reduces storage burden, allows easy design changes, and improves maintenance convenience by enabling separate washing of components.
Smart Images

Figure 0007758408000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a sleeping bag set. [Background technology]
[0002] Sleeping bags are personal bedding used for various purposes, such as camping and mountain climbing, and their warmth is primarily determined by the filling material. Commercially available sleeping bags are classified into winter, spring / autumn, and summer types depending on the temperature range of the intended environment, and each type has different filling amounts, materials, and exterior structures. Winter sleeping bags, especially those designed for extremely cold climates, require a thick filling to enhance warmth, which increases the bag's bulk and weight.
[0003] The following Patent Documents 1 and 2 disclose a multi-climate sleeping bag having a lower panel and first and second upper panels that can be attached and detached independently from the lower panel. This sleeping bag is constructed by attaching one or two upper panels to the lower panel. By changing the combination of the multiple upper panels, the sleeping bags described in Patent Documents 1 and 2 can be adapted to three different climate zones. [Prior art documents] [Patent documents]
[0004] [Patent Document 1] Patent No. 6941675 [Patent Document 2] Patent No. 7220729 Summary of the Invention [Problem to be solved by the invention]
[0005] There is a demand for sleeping bags that can be adapted to various environments in situations such as camping and mountain climbing. Conventional sleeping bags require multiple types with different insulation performance depending on the environment, which causes various inconveniences for users, such as the hassle of using different sleeping bags for different weather conditions and seasons, the increased storage space required to store multiple bedding items, and the burden of purchasing them.
[0006] In particular, the following issues are raised: 1. The burden of using and storing sleeping bags for each season While deep-winter sleeping bags are thick and have excellent heat retention, they can be overkill for relatively warm seasons such as summer, spring, and autumn, potentially compromising your sleeping environment. This means users must prepare thin sleeping bags and blankets separately. Furthermore, users who go camping throughout the year generally need different types of equipment, such as a deep-winter sleeping bag, a spring / autumn sleeping bag, and a summer blanket. When traveling as a family, it is necessary to prepare this equipment for each season for each member of the family, which takes up a lot of storage space.
[0007] 2. Lack of support for light clothing and simple use For example, in summer, spring, and autumn, when it's hot during the day and cools only at night or early morning, it's often not necessary to fully bury yourself in a sleeping bag. However, traditional sleeping bags are designed to be used by the user inside, making it difficult to drape them over the body like a blanket. While some sleeping bags can be opened with a zipper, the hood and other features get in the way even when the zipper is open, making them unsuitable for use as a blanket. This means that a blanket must be prepared separately from the sleeping bag, which creates problems such as financial burdens and increased storage space.
[0008] 3. Lack of flexibility for design changes In particular, for users who place importance on design, the exterior design of a sleeping bag is an important factor in product selection in addition to its functionality. However, with conventional sleeping bags, the appearance is determined by the color, pattern, and stitching of the outer fabric, so if you want to change the design, you have no choice but to buy an additional or replacement sleeping bag, which makes it difficult to easily change.
[0009] 4. Difficulty in cleaning and maintenance Sleeping bags that prioritize thermal insulation have a large amount of filling and are bulky, so they often cannot be washed in a home washing machine and require coin laundry or commercial dry cleaning. This increases the burden of maintenance after use, which can be particularly inconvenient for users who use the sleeping bag repeatedly outdoors.
[0010] The present invention has been made in consideration of the above circumstances, and aims to provide a sleeping bag set that can flexibly adapt to various usage environments and needs, such as climatic conditions and seasons, and can improve convenience for the user. [Means for solving the problem]
[0011] In order to solve the above problems, the sleeping bag set of the present invention employs the following measures. In other words, the sleeping bag set of the present invention comprises a sleeping bag body having an upper part and a lower part, forming a user accommodation space between the upper part and the lower part, and a blanket that is attached and detached to the sleeping bag body, and the blanket is fixed to the outer surface of the upper part of the sleeping bag body by an attachment and detachment part.
[0012] According to this configuration, the sleeping bag body has an upper and lower parts, a user accommodation space is formed between the upper and lower parts, and the blanket is attached to and detached from the sleeping bag body. The attachment part secures the blanket to the outer surface of the upper part of the sleeping bag body. The attachment part is provided on at least one of the sleeping bag body and the blanket.
[0013] In the above invention, the blanket may be secured to the sleeping bag body by the detachable part in a folded state.
[0014] With this configuration, the folded blanket is secured to the sleeping bag body by the detachable part.
[0015] In the above invention, the blanket may be secured to the sleeping bag body by the detachable part when the blanket is folded approximately in half at a middle portion in one direction of the blanket.
[0016] With this configuration, the blanket is folded approximately in half, and the blanket is secured to the outer surface of the upper part of the sleeping bag body in a double-layered state.
[0017] In the above invention, the blanket may be fixed to the sleeping bag body by the detachable part when the blanket is folded at one end region of the blanket.
[0018] With this configuration, the blanket is folded so that some areas of the blanket are doubled over, and then the blanket is secured to the outer surface of the upper part of the sleeping bag body. [Effects of the Invention]
[0019] According to the present invention, it is possible to flexibly respond to various usage environments and needs, such as climatic conditions and seasons, thereby improving convenience for users. [Brief explanation of the drawings]
[0020] [Figure 1] 1 is a plan view showing a sleeping bag set according to one embodiment of the present invention. [Figure 2] 1 is a plan view showing the sleeping bag body of a sleeping bag set according to one embodiment of the present invention, showing the state in which the blanket has been removed. [Figure 3] 1 is a cross-sectional view showing a first example of a sleeping bag set according to one embodiment of the present invention. [Figure 4] 1 is a plan view showing a blanket of a first embodiment of a sleeping bag set according to one embodiment of the present invention. FIG. [Figure 5] FIG. 2 is a cross-sectional view showing a second embodiment of a sleeping bag set according to one embodiment of the present invention. [Figure 6] FIG. 2 is a plan view showing a blanket of a second embodiment of a sleeping bag set according to one embodiment of the present invention. [Figure 7] A cross-sectional view showing a third embodiment of a sleeping bag set according to one embodiment of the present invention. [Figure 8] FIG. 10 is a plan view showing a blanket of a third embodiment of a sleeping bag set according to one embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION
[0021] A sleeping bag according to one embodiment of the present invention will be described below with reference to FIGS. 1 to 8. FIG. The sleeping bag set 10 according to this embodiment has a configuration in which the blanket 2 can be attached to and detached from the sleeping bag body 1.
[0022] The sleeping bag body 1 has a common shape known as an envelope or mummy shape, and envelops the user's entire body except for the head. The sleeping bag body 1 comprises an upper part 3 that is located on the user's stomach side when in use, and a lower part 4 that is located on the user's back side. The upper part 3 acts as a comforter that covers the user's body, while the lower part 4 is the part that bears the user's weight directly and acts as a mattress. The space between the upper part 3 and lower part 4 is the internal space of the sleeping bag body 1, and forms the space where the user is accommodated when sleeping, etc.
[0023] The sleeping bag body 1 is made by sewing together an outer fabric and an inner fabric, with a filling (batting) enclosed between the two fabrics. The outer and inner fabrics are made of, for example, nylon taffeta or polyester taffeta, and the filling is made of, for example, polyester hollow fiber or down. This allows the sleeping bag body 1 to be both lightweight and warm.
[0024] A freely closable zipper (not shown) is provided along the length of the sleeping bag body 1 on the upper part 3 or one side thereof, allowing the user to enter and exit the sleeping bag body 1 and to adjust the internal temperature by opening and closing the zipper. In this embodiment, the upper part 3 and lower part 4 of the sleeping bag body 1 are sewn together and cannot be separated. It is desirable to provide the minimum number of zippers necessary on the sleeping bag body 1 to prevent cold air from entering.
[0025] A hood may be provided on the upper end side of the sleeping bag body 1. The hood may be provided integrally with the sleeping bag body 1 or detachably attached to the sleeping bag body 1. The hood increases the heat retention of the sleeping bag body 1 by covering the user's head. The hood may be formed, for example, to envelop the entire user's head in a natural shape.
[0026] The blanket 2 is a planar member that can be attached and detached to the outer surface of the upper part 3 of the sleeping bag body 1. It is formed, for example, in a roughly rectangular shape and is flexible enough to be bent and folded. Any design can be applied to the outer surface of the blanket 2. The blanket 2 is generally used by wrapping it around the body to provide warmth, insulation, wind protection, and other benefits. By attaching the blanket 2 to the outer surface of the upper part 3 of the sleeping bag body 1, it is possible to improve the warmth, design, and functionality of the sleeping bag body 1. The blanket 2 can also be used on its own.
[0027] The blanket 2 has a width and length sufficient to completely cover the upper part 3 of the sleeping bag body 1, as shown in Figures 3 and 4. If the sleeping bag body 1 is approximately 80 cm wide and 180-200 cm long, the blanket 2 will have a width of 80-90 cm and a length of 180-200 cm, for example. The length of the sleeping bag body 1 does not include the hood, if any. The blanket 2 may be fixed not only to the upper part 3 of the sleeping bag body 1, but also to the widthwise ends of the upper part 3, lower part 4, and the outside of the upper part 3 and lower part 4.
[0028] The width of the blanket 2 according to this embodiment may be greater than the width of the sleeping bag body 1. In this case, the blanket 2 is secured to the upper part 3 of the sleeping bag body 1 in a folded state, as shown in, for example, Figures 5 to 8. If the sleeping bag body 1 is approximately 80 cm wide and 180 to 200 cm long, the blanket 2 may have a width of 130 to 180 cm and a length of 180 to 200 cm, for example. The length of the sleeping bag body 1 excludes the hood, if any. The dimensions of the sleeping bag body 1 and the blanket 2 are not limited to these examples. Furthermore, even when the blanket 2 is secured in a folded state, it may be secured so as to cover not only the upper part 3 of the sleeping bag body 1, but also the outside of the upper part 3 and the lower part 4.
[0029] Alternatively, the blanket 2 may be made smaller in area than the upper part 3 of the sleeping bag body 1, and multiple blankets 2 may be arranged and fixed in the length direction of the upper part 3 of the sleeping bag body 1. Also, another blanket 2 may be layered on top of the blanket 2 shown in Figures 3 to 8.
[0030] At least one of the sleeping bag body 1 and the blanket 2 is provided with attachment / detachment means (for example, attachment / detachment parts 5, 6) for fastening the sleeping bag body 1 and the blanket 2 together.
[0031] As an attachment / detachment means, for example, a detachable part 5 for fastening the blanket 2 is provided on the outer surface of the sleeping bag body 1. In addition, a detachable part 6 is provided at a predetermined position on the outer surface of the blanket 2, corresponding to the detachable part 5 of the sleeping bag body 1. The sleeping bag body 1 and the blanket 2 are fastened together by combining the detachable part 5 and the detachable part 6. The detachable parts 5, 6 are, for example, snap buttons, buckles, hook-and-loop fasteners, wire fasteners, or a combination of a loop and toggle (a string and a fastener), etc.
[0032] The following describes how to use the sleeping bag set 10 according to this embodiment. In the sleeping bag set 10, by fastening the sleeping bag body 1 and the blanket 2 together, the blanket 2 is superimposed on the outside of the upper part 3 of the sleeping bag body 1, improving the heat retention of the internal space of the sleeping bag body 1. When the user fastens the sleeping bag body 1 to the upper part 3 of the blanket 2, in the example of Figures 3 and 4, the blanket 2 is superimposed on the sleeping bag body 1 to match the shape of the upper part 3 of the sleeping bag body 1, and is fastened by the attachment / detachment parts 5, 6.
[0033] As mentioned above, the width of the blanket 2 may be greater than the width of the sleeping bag body 1. In the examples of Figures 5 and 6, the blanket 2 is folded at the middle of one side to double the blanket 2. In the examples of Figures 7 and 8, the user folds the end region of one side of the blanket 2 to partially double the blanket 2 and secures it to the upper part 3 of the sleeping bag body 1. The sleeping bag body 1 with the blanket 2 attached becomes thicker due to the overlapping of the blankets 2, making it suitable for use in winter or in extremely cold regions.
[0034] The folded shape of the blanket 2, the position where the folded blanket 2 is fixed to the sleeping bag body 1, and the shape when the two are stacked are not limited to the examples shown in the drawings. Also, Figures 4, 6, and 8 show examples of the attachment / detachment parts 5, 6 being linear members such as hook-and-loop fasteners or wire fasteners. When the attachment / detachment parts 5, 6 are snap buttons, buckles, short hook-and-loop fasteners, or a combination of loops and toggles, they are installed at multiple positions on the sleeping bag body 1 and blanket 2 at intervals. The type, installation positions, and number of attachment / detachment parts 5, 6 are determined taking into consideration stable attachment and ease of attachment and detachment.
[0035] In the sleeping bag set 10, the sleeping bag body 1 can be detached from the blanket 2, allowing the sleeping bag body 1 and the blanket 2 to be used separately. The sleeping bag body 1 with the blanket 2 detached is thinner than when the blanket 2 is attached, making it suitable for use in the summer, etc.
[0036] Having multiple blankets 2 of different thicknesses allows for more flexible use in various environments. For example, layering a relatively thick blanket 2 on the top 3 of the sleeping bag body 1 provides relatively high thermal insulation, making it suitable for winter or extremely cold climates. Layering a relatively thin blanket 2 on the top 3 of the sleeping bag body 1 ensures appropriate thermal insulation, making it suitable for use in spring and autumn.
[0037] The ISO or EN comfort temperature of the user accommodation space of the sleeping bag body 1, when measured using the measurement method of the international standard ISO23537 or the European standard EN13537 (Requirements for Sleeping Bags), which are standards for sleeping bags, is as follows. Note that "comfort temperature" is the outside temperature defined in ISO23537 or EN13537 at which the user can sleep comfortably in a relaxed position.
[0038] When the blanket 2 is attached to the sleeping bag body 1, the ISO or EN comfort temperature of the user accommodation space should be 10°C or below. This allows the user to sleep comfortably at outside temperatures of 10°C or below. Unlike this embodiment, if the ISO or EN comfort temperature of the user accommodation space exceeds 10°C, the user will not be able to sleep comfortably at outside temperatures of 10°C or below, even with the blanket attached to the sleeping bag body. When the blanket 2 is attached to the sleeping bag body 1, the ISO or EN comfort temperature of the user accommodation space may be 5°C or below, or may be 0°C or below.
[0039] When the blanket 2 is removed from the sleeping bag body 1 and only the sleeping bag body 1 is left, the ISO or EN comfort temperature of the user accommodation space should be 15°C or below. This allows the user to sleep comfortably at outside temperatures of 15°C or below. Unlike this embodiment, if the ISO or EN comfort temperature of the user accommodation space exceeds 15°C, the user will not be able to sleep comfortably at outside temperatures of 15°C or below with only the sleeping bag body left. When only the sleeping bag body 1 is left, the ISO or EN comfort temperature of the user accommodation space may be 10°C or below, or may be 5°C or below.
[0040] The lower the ISO or EN comfort temperature of the user accommodation space, the better the thermal insulation performance. On the other hand, the higher the ISO or EN comfort temperature of the user accommodation space, the less filling material is required in the sleeping bag body 1 and blanket 2, resulting in a lighter weight.
[0041] Furthermore, by preparing a plurality of blankets 2 with different designs, the user can select and use a design that suits their preferences, the season, etc.
[0042] The following describes the effects of the sleeping bag set 10 according to this embodiment. According to this embodiment, the sleeping bag set 10 can flexibly accommodate a variety of usage environments and needs, as described below. 1. Flexible adjustment of heat retention performance In this embodiment, by attaching the blanket 2 to the outer surface of the upper part 3 of the sleeping bag body 1, it is possible to expand the heat retention performance of the sleeping bag body 1. By changing the thickness and material of the blanket 2, the heat retention can be freely adjusted according to the temperature, season, and location of use (outdoors, indoors, in a car, etc.), eliminating the need to purchase multiple sleeping bags for different purposes.
[0043] 2. Avoiding narrowing of the interior space Because the blanket 2 is attached to the exterior of the sleeping bag body 1, unlike when an additional blanket is attached inside the sleeping bag, the internal space of the sleeping bag does not compress the user's body. As a result, the user can sleep in a normal amount of internal space. This is particularly effective in preventing the loss of comfort, even for larger people or those sleeping for long periods of time.
[0044] 3. Use the blanket alone Because the blanket 2 is wider than the sleeping bag body 1, it is wide enough to be used as the blanket 2 when detached from the sleeping bag body 1 and used separately from the sleeping bag body 1. Therefore, the blanket 2 can be used as a heat-retaining device such as a quilt or lap blanket on its own. This eliminates the hassle of having to carry a blanket separately from the sleeping bag, as has been the case in the past.
[0045] 4. Ease of design changes While the appearance of the sleeping bag body 1 is fixed, the blanket 2 is detachable, so the overall impression of the sleeping bag can be changed simply by changing to a blanket 2 with a different design (color, pattern, texture, etc.). Users who place particular importance on appearance will particularly appreciate the fact that they can customize the design more cheaply and easily than buying multiple sleeping bags.
[0046] 5. Improved washability and maintenance Because the sleeping bag body 1 and blanket 2 are separable, the sleeping bag body 1 and blanket 2 can be washed separately after using the sleeping bag set 10. Conventionally, large sleeping bags that do not fit into a home washing machine or relatively thick winter sleeping bags have required the time and expense of washing them at a laundromat or similar facility, but this embodiment is highly practical in that it can be washed in a home washing machine.
[0047] 6.Improved storage efficiency The structure of the present invention allows selective use depending on the climate and location, such as combining the sleeping bag body 1 and blanket 2, using only the sleeping bag body 1, or using only the blanket 2, thereby minimizing the amount of luggage required when carrying the sleeping bag.
[0048] 7. Differentiation from existing technologies In the sleeping bags described in Patent Documents 1 and 2, the lower panel alone does not function as a sleeping bag; at least one of the first and second upper panels must be attached to the lower panel. Furthermore, because the width of the first and second upper panels is the same as the sleeping bag body, the first and second upper panels are not suitable for use alone. In contrast, in this embodiment, a blanket 2 with sufficient width and heat retention is configured to be detachable from the sleeping bag body 1, allowing the sleeping bag body 1 and blanket 2 to be used together, the sleeping bag body 1 to be used alone, or the blanket 2 to be used alone. Therefore, the sleeping bag set 10 according to this embodiment can flexibly adapt to various usage environments and needs, such as climatic conditions and seasons. [Explanation of symbols]
[0049] 1: Sleeping bag body 2: Blanket 3: Top 4: Bottom 5: Detachable part 6: Detachable part 10: Sleeping bag set
Claims
1. a sleeping bag body having an upper portion and a lower portion, the sleeping bag body defining a user accommodation space between the upper portion and the lower portion; A blanket that is attached to and detached from the sleeping bag body; Equipped with The blanket is fixed to the outer surface of the upper part of the sleeping bag body by a detachable part, The blanket fixed to the outer surface covers the entire width of the upper part of the sleeping bag body, and does not cover or only partially covers the width of the lower part of the sleeping bag body.
2. The sleeping bag set according to claim 1, wherein the blanket is secured to the sleeping bag body by the detachable portion in a folded state.
3. 3. The sleeping bag set according to claim 2, wherein the blanket is secured to the sleeping bag body by the detachable portion when the blanket is folded approximately in half at a middle portion of one side of the blanket.
4. The sleeping bag set according to claim 2, wherein the blanket is secured to the sleeping bag body by the detachable portion when the blanket is folded at an end region of one side of the blanket.
Citation Information
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