JPH0417527Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a lap rest that is convenient for use outdoors, such as when watching winter sports, etc., or working at an outdoor reception.

[Prior art]

In recent years, winter sports such as rugby and ice hockey have gained considerable ability to attract spectators.
Fans of these sports include many women and the elderly, and many watch the games while using lap blankets. However, outdoors, rain or snow may suddenly fall, and once lap blankets get wet, they lose their heating effect and cannot be dried quickly.Furthermore, fabrics with high heat retention are generally porous, so they can be easily blown away by wind. They have the disadvantage that they lose their heat retention effect when they are blown. Moreover, if it is made to prevent air from passing through, it will generally be heavy, and the material made of noble materials will be bulky and inconvenient to carry.

If there was a knee rest that was convenient to carry and had some degree of resistance to normal wind and rain, it would be possible to increase the number of spectators for winter sports.
It can be conveniently used in various fields such as reception work, street sales, and other situations where it is necessary to sit outdoors for a long time.

[Purpose of invention]

The present invention was created in consideration of the above problems, and is suitable for use outdoors without heating.
Moreover, the purpose is to provide a knee rest that is highly flexible so that it fits well on the body, is lightweight, and is convenient to carry.

[Structure of the invention] In order to achieve the above object, the structure of the outdoor lap blanket of the invention consists of a waterproof fabric and a heat-retaining fabric layered together, and at least a portion of the heat-retaining fabric. A planar heating element made of a filament heating element with a flexible synthetic resin heating layer with carbon particles dispersed around the core yarn is inserted into the core yarn, and a locking mechanism is installed to hold the fiber in a folded state for carrying. A locking member and a carrying member are provided, and a pocket into which a hand can be inserted is provided at a predetermined position, and a heat-retaining fabric in which the sheet heating element is inserted is superimposed on at least the inside of the pocket. Features.

The waterproof fabric of the present invention is used with the fabric facing out during use, and the materials used include fabrics commonly used for raincoats, etc.
For example, Burberry, gabardine, etc. can be used. In order to improve heat retention outdoors, it is necessary to prevent warm air from escaping because it is difficult for the wind to pass through, so it is preferable to use a material that is dense, flexible, and adapts well to the body. In order to be convenient to carry, it is required to be lightweight.
Examples of materials that meet these conditions and have both waterproofness and moisture permeability include those known as Entrant (trademark of Toray Industries, Inc.), Gore-Tex (trademark), and the like.

The heat-retaining fabric of the present invention is used as the inside of the waterproof material, and at least a portion of the heat-retaining fabric is made of yarn forming a heat-generating layer made of flexible synthetic resin in which carbon particles are dispersed around a core yarn. It consists of a fabric-like sheet heating element obtained by weaving and weaving strip heating elements. The material that can be used in combination with this planar heating element is preferably one that has high heat retention, is flexible, and is lightweight.
Blanket fabrics commonly used for lap blankets can be used, but other heat-retaining materials, such as quilted down or the like, can also be used.

In addition, a planar heating element made of a filament heating element having a flexible synthetic resin heating layer in which carbon particles are dispersed around a core thread is inserted into at least a part of the heat-retaining fabric. The planar heating element is connected to the battery via lead wires.

The filament-like heating element used in the present invention is one in which a carbon particle dispersed layer is provided on a core yarn proposed by the present inventors (Japanese Patent Application No. 60-240351), which has a temperature fuse when the core yarn is abnormally overheated. (Japanese Patent Application No. 60-240352), one in which the electric resistance value can be adjusted by twisting multiple yarn heating elements (Japanese Patent Application No. 60-240353), electric There is one in which the resistance value is adjusted by mixing metal powder (Japanese Patent Application No. 1983-240354).

As the core yarn, natural fibers that do not deteriorate due to heat even when used for long periods at temperatures of about 60℃ to 100℃, or synthetic fibers made of polyamide, polyester, polyolefin, etc. that have a melting point are used. However, it is not particularly limited. Further, the form of the core yarn is suitably a spun yarn or a sheath core yarn, and in the case of a spun yarn, a double yarn or a triple twisted yarn is preferable. Furthermore, filamentary fibers hardened into threads using a synthetic resin in which carbon powder is dispersed as a binder can also be used as the core thread.

The synthetic resin is not particularly limited as long as it does not undergo thermal deterioration at the maximum operating temperature of the yarn heating element (usually approximately 100° C.) and is flexible.
Examples of such synthetic resins include resins such as polyurethane, polyacrylic, and butyral.
Carbon particles dispersed in these resins include:
Those having an average particle diameter of 20 mμ to 40 mμ are used. In order to obtain a filamentous heating element with good mechanical properties and heat generating properties, carbon particles should be added in an amount of 5 to 15 parts by weight, preferably 7 to 12 parts by weight, per 100 parts by weight of synthetic resin.
It is better to mix parts by weight.

When coating a core yarn with a synthetic resin in which carbon particles are dispersed, it is necessary to melt it in a solvent and apply it to clay at room temperature.
A solution of 20 to 100 poise is prepared, and the core thread is usually coated multiple times. When laminating three layers, the electrical resistance value should be approximately 13 kΩ/m. The yarn heating element thus obtained has superior mechanical properties such as abrasion resistance and bending resistance compared to conventional nichrome wires and commercially available cord heaters.

The electrical resistance value of the filamentous heating element used in this invention is
Since the resistance is significantly higher than that of metal wires, electrode wires made of a conductor are placed inside the heating element. The electrode wires are not particularly limited, but include fine metal wires such as copper wires, which are treated to prevent rust and are stranded to provide good flexibility.

This yarn heating element can be made into a flexible heating element unique to woven or knitted fabrics in the form of cloth, ribbon, string, or mesh using an ordinary loom or knitting machine. These woven or knitted fabrics are preferably patterned in advance so that they can be cut into unit shapes and made into cloth-like fabrics, and when knitted, it is desirable to use warp knitting, which has excellent fraying resistance.

The outdoor lap blanket of the present invention is made by sewing the two kinds of fabrics together as appropriate so that they do not fall apart to form a single lap blanket, and is constructed so that it can be folded for convenient portability as described above. One way to do this is to put the side with the shorter, tighter bristles facing out, so that it doesn't get dusty when you carry it, and it doesn't fray when you hang it on a hard object. Preferably, normally a waterproof fabric is exposed. Therefore, since the thick fabric will be folded inward, it is preferable to sew the waterproof fabric in advance so that it has some extra margin at the fold, or to add creases.

The outdoor lap rest of the present invention is provided with a locking member and a band so that it can be folded and carried.

As the locking member, a band, a button, a fastener, a magic fastener, etc. can usually be used, but the present invention is not limited to these.

The carrying member may be anything suitable for being hung from the shoulder or held in the hand, and is usually the same as a shoulder strap for a bag or bag, a handbag, etc., and may be made of a hard material. It may be a member including a grip portion.

In addition, the outdoor lap rest of the present invention can, for example, be provided with a pocket to be placed inside the hand and knee rest while in use, or can be folded into a bag-like shape with a zipper or the like so that personal belongings can be stored inside. I can do it.
Examples of the belongings include a cushion and a heat insulating sheet. Furthermore, as an application of the present invention, the above-mentioned belongings can be stored in the container, and a battery can be placed inside the container, and a flexible heating element can be installed.

[Embodiment 1] The present invention will be specifically explained below by way of an embodiment in comparison with the drawings. That is, FIGS. 1 to 3 show the structure of the outdoor lap rest 15 of this embodiment.

In the figure, in the knee strap 15, the waterproof fabric 16 is Entrant (trademark name of Toray Industries, Inc.), and the heat-retaining fabric 1 is
7 is a blended blanket fabric of polyacrylic fiber and wool, and each of these has a design that is suitable for the purpose of the customer to whom it is sold, such as a design that is suitable for use in the bleachers of a stadium, and a design that is designed to arouse the desire to purchase. design,
If the product is for commercial use, it is possible to appeal to buyers as a distinctive product by adding a design that is appropriate for that purpose.

The lap rest 15 is further attached with a member to make it convenient for warming and carrying. That is, when the edge 18 of the knee rest 15 is placed against the body, the pocket 1
9 is provided above the knees, and by placing your hands here you can prevent your hands from freezing. Further, the clasp 20 and the band 21 are used when the lap rest 15 is folded and carried. Note that 23 in the figure is a pocket for storing small items.

Next, the manner in which the lap rest 15 of this embodiment is folded will be explained based on FIGS. First, the band 21 is folded with the heat-retaining fabric 17 side inside to form the shape shown in FIG.
When folded outward from c to b and a, the clasp 20 and band 21 will be adjacent to each other, so pass the band 21 through the bunge holes at both ends of the carrying member 24 and lock it to the clasp 20. As a result, it can be shaped like a bag and has the shape shown in FIG. 3, which is extremely convenient to carry. In this example,
By making the carrying member 24 a polypropylene molded product, it is given tension so that it does not lose its shape when held by hand.

Figures 4-1 and 4-2 show the pocket 19.
This shows a modified example of . That is, FIG. 4-1 shows a pocket part sewn onto the windproof and water-resistant fabric 16 like an applique, and FIG.
In Figure 2, the pocket 11 is in communication with the left and right sides. These are all problems in terms of design, and the point is that the structure should be such that the hands are directly shielded from cold air and the sheet heating element 1 can be used to warm the hands.

FIGS. 5-1 and 5-2 show one way to improve the usability of the lap rest shown in FIG.
As shown in FIG. 5-2, by folding back a part of the lap blanket with the tape 22, the lap blanket can be wrapped around the waist to improve heating efficiency.

Fig. 6 shows the waterproof fabric 16 side of another lap rest 15. Leather is used for the front part when folded, that is, the parts -a and -b in the figure, so that it can be used as a bag when carrying. It has an external shape like this. In this example, the folding procedure, the means for storing the heating element 1 during carrying, etc. are the same as the lap rest 15 shown in FIG.

Next, a case where an electric heater is provided on the outdoor knee rest 15 shown in FIG. 1 will be described.

FIG. 7 is an explanatory diagram showing an outline of the planar heating element 1 used in the portable lap rest of this embodiment. The planar heating element 1 uses a filamentous heating element 2 for the weft and a non-conductive yarn such as polyester fiber (not clearly shown), and a plurality of thin copper wires plated with tin for the warp as shown in the figure. The surface of a fabric woven by a normal method using a strip of electrode wire 3 and the same non-conductive yarn as described above is coated with an insulating and flexible synthetic resin coating such as polyethylene. It is an insulated sheet heating element.

Note that 8 in FIG. 7 indicates that a third
This is a magic tape attached to the heat-retaining fabric 17 explained in the figure. However, this locking means may be other locking means or may be fixed by sewing.

A lead wire 6 connected to a battery 5 is attached to one end 4 of the electrode wire by soldering, and a switch 7 is provided in the middle.
The switch 7 can be operated by hand, such as by providing a hook that locks onto the clasp 20 of the lap rest 15 described in FIG. 3 above.
Furthermore, it is preferable to display that the switch 7 is turned on by means of an LED or the like, since the power source can be used effectively.

As schematically shown in FIG. 8, the filamentous heating element 2 is made by dispersing carbon particles in a binder made of flexible and solvent-soluble polyurethane resin around a core thread 10 made of synthetic fiber threads. This is a stack of three heat generating layers 11, 12, and 13. This filamentous heating element 2 is extremely flexible and can be easily processed into fabric, ribbon, string, or mesh using various conventional looms and knitting machines. Therefore, the planar heating element 1 obtained using this filamentous heating element 2 can be made much more flexible than conventional ones, so it can be easily adapted to the fabric of the lap blanket and has a comfortable feel when used. You can get a good lap rest with an electric heater.

The core yarn 10 of the filamentous heating element 2 used in this example is a twin yarn made of spun polyester fiber yarn, and the carbon particle dispersion layers 11, 12, and 13 each contain carbon particles of 20 mμ and polyester-based urethane resin ( 12 each,
A mixture containing 10.8% by weight was used.

In FIG. 1, the edge 18 between the two clasps 20 is the same as the two fabrics 16 and 17.
The sheet heating element 1, battery 5, etc. can be stored between the two without being sewn together, and the opening can be secured with a magic tape 22 for convenient portability. The means for providing a storage space for batteries, etc. is not limited to the above description, but can be realized by any means.

In this way, the electric lap rest 15 of the present invention can be used in combination with various usability improvements to expand the uses of outdoor lap rests, but the knee rest of the present invention can be used indoors. It is clear that it can be done. As a power source for the sheet heating element, in addition to rechargeable batteries such as nickel-cadmium batteries, ordinary 100V AC power supply,
An automobile or other power source can be used. When used outdoors, it is preferable to use a battery that is strong, lightweight, and easy to use, such as by removing it from a lap rest and placing it next to it.

In addition, when implementing the present invention, it is possible to incorporate a temperature control device such as that used in electric blankets, or a switch that turns on when the user's weight is applied.
Various applications such as incorporating a battery such as a nickel-cadmium battery into a portable type can be envisaged.

[Example 2] Next, an example in which the folding method is modified will be described with reference to FIG. That is, FIG. 9 shows the same as shown in FIG. 2, which is wound in a seaweed shape and secured with a clasp 20 and a band 21. Naturally, the band 20 needs to be installed close to the pocket 19.
Moreover, it is preferable to roll the pocket 19 inward. By winding it in this way, there is no deformation of the shape, making it convenient to carry. or,
The carrying band 23 can be attached vertically or carried on the back.

[Effect of idea]

The outdoor lap blanket of this invention is made of overlapping waterproof and heat-retaining fabrics to prevent sudden rain and the loss of heat-retaining ability caused by wind.Also, since it can be folded and carried, it is easy to take outdoors. In addition, it has the effect of protecting the insulating fabric from getting dirty with dust when not in use outdoors, and can be used in unheated areas such as watching winter sports or working as an outdoor receptionist. It can be used very advantageously as a lap rest.

Furthermore, a planar heating element made of an extremely flexible yarn heating element is inserted into at least a portion of the heat-retaining fabric, and it can be connected to a power source via a lead wire, making it possible to provide long-term heating. It can be made easy to use.

[Brief explanation of the drawing]

Figure 1 is an external view of the outdoor lap rest of Example 1, Figure 2 is a diagram showing the folding procedure, Figure 3 is a completed diagram, and Figures 4-1 and 4-2 are the same as Figure 1. Another external view of the pocket shown in Figures 5-1 and 5-2
The figure shows a means for wearing the lap rest of the present invention around the body, Figure 6 is an external view of a modified version of the lap rest of Example 1, and Figure 7 shows the heat generator attached to the outdoor lap rest of Example 1. Fig. 8 is a perspective view showing a part of the filamentous heating element used in Fig. 7, broken away;
FIG. 9 is a perspective view of a different folding method. 1... Planar heating element, 2... Filiform heating element, 3...
Electrode wire, 5...Battery, 7...Switch, 10...
Core thread, 11, 12, 13... Carbon particle dispersed layer, 15... Electric lap blanket, 16... Windproof and water resistant fabric, 17... Heat retaining fabric.

Claims (1)

[Claims for Utility Model Registration] (1) A product consisting of a waterproof fabric and a heat-retaining fabric layered together, with carbon particles dispersed around the core yarn in at least a part of the heat-retaining fabric. For outdoor use, a planar heating element made of a filament heating element with a flexible synthetic resin heating layer formed therein is inserted, and a locking member and a carrying member are provided to hold the folded state for carrying. Knee rest. (2) The scope of the utility model registration claim, in which a pocket into which a hand can be inserted is provided at a predetermined position, and heat-retaining fabric in which a sheet heating element made of the yarn heating element is inserted at least inside the pocket is layered. Outdoor knee rest as described in paragraph (1).