JP2826551B2 - Mobile phone case - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile phone case which expands and contracts in response to minor changes in the size of a mobile phone and fits into equipment.

[0002]

2. Description of the Related Art Conventionally, a portable telephone is carried in a case for the purpose of protecting equipment. When carrying the phone, placing naked equipment (telephone) directly in clothes pockets or bags or attaching it to the waist with a dedicated attachment such as a belt clip, with emphasis on operability during a call Easy to break.

Various cases have been proposed and developed so far. The functions of the case body are roughly classified into a detachable type in which only equipment is taken out of the case and used during handling such as a telephone call, and a case in which the case is mounted. There is a mounting type that is used as it is. Normally, the former is made of relatively hard materials such as leather, cloth, plastics, and metals while emphasizing the protection of equipment when carrying, while the latter is equipped with a case. In consideration of the fit at the time of handling so that it can be used as it is, the display part of the equipment and the functional part such as function buttons are composed of soft transparent film material or holes without material,
Other parts are made of relatively soft materials such as leather, cloth, plastics, etc. provided with holes in necessary parts such as a transmission / reception mouthpiece and an external connection terminal for charging.

[0004] Regardless of the type, the case is provided with a belt loop (a loop-shaped belt loop for attaching to a waist belt) and a strap so that the case can be worn and carried without being held by hand for the purpose of portable convenience. (Strings and bands for hanging from shoulders and neck), loop strings (loop strings for hanging on hands,
And is sold and used as a so-called carrying case.

[0005] Further, a device for easily and securely attaching the body has been developed by using a magic tape or a special locking device.
6-16037, actual application 07-5802, actual application 56-
41361 and the like.

In any of the above types, the most important performance required of the case is, in addition to the protection of the equipment, the fit between the case of carrying and the handling, that is, the fit of the case with the equipment, so that the case can be used comfortably. In order to do so, it is necessary to make the case suitable for the equipment size.

On the other hand, in the case of equipment, in response to the remarkable progress of electronics technology, competition for the development of products with new functions is fierce, and the models and specifications are changed one after another, and the size of the equipment is also changed. Therefore, in accordance with the new purchase of the mobile phone material, a special case or a new case equivalent thereto is purchased.

However, such a size change is not limited to a major change due to the registration of a new function or the like, and a minor change in height, width, and thickness of a part of the equipment may occur. For example, there is a size change accompanying a change in battery capacity.

[0010] Portable telephone materials are sold with standard size (generally S size) batteries as standard equipment at the lower portion of the back of the equipment. In addition, a large capacity battery (M
And L size) are also sold separately. Normally, the battery becomes thicker by about 1 mm to several mm as the capacity increases.

Normally, the user changes the battery capacity by replacing batteries of a plurality of sizes according to the purpose of use, or by replacing the batteries after the service life of about one year has elapsed. Accompanying this, a small change in the case is inevitable, but purchasing a new case with such a change of about several millimeters is wasteful both economically and in terms of resources.

In order to solve the above-mentioned dissatisfaction, a change in the size of the equipment has been conventionally absorbed by using an elastic material on the entire left and right side surfaces of the case, and in some cases also on the lower side surface (bottom surface). However, in the case of the S size, it fluctuates, and in the case of the M or L size, it is not possible to make the rear surface of the equipment non-planar, and in any case, it is a halfway object lacking in fit. In particular, in the above-mentioned wearing type, this trouble is serious, and the user endures the dissatisfaction in handling, or is content with the use of the above-mentioned detachable type.

[0011]

SUMMARY OF THE INVENTION The present invention solves such a conventional problem, that is, it expands and contracts only necessary parts in response to a minor partial size change in the lower half of a portable telephone. Thus, the present invention relates to a case that fits the equipment at the time of handling such as when carrying and during a call.

[0012]

In order to solve the above problems, a portable telephone case of the present invention has the following structure. That is, a T-shaped portion is formed on the rear surface of the case from the entire width of the upper edge to the central portion of the lower edge, and then, the remaining lower lower side edges and the lower side of the T-shaped portion or across the T-shaped portion. It is characterized by forming a part connecting the parts horizontally, forming a T-shaped or lower cut T-shaped part with a non-stretchable material, and forming the remaining lower edges and a part connecting the both edges with a stretchable material. Mobile phone case.

In the present invention, the stretchable material has a width of 2.5
cm and a test length of 10 cm, both ends of the test length are extended by 30% using a tensile tester such as Tensilon (1.2% of the test length).
After stretching for 1 minute and holding it for 1 minute, it is a material whose elongation recovery rate is 80% or more after 3 minutes after releasing tension, such as rubbers, stretchable cloths, plastics or composite materials. You can use anything that meets your requirements.

The non-stretchable material refers to leather, paper, cloth including non-woven fabric, plastics or metals, and composite materials thereof. The above-mentioned elongation recovery rate means the thing below it.

That is, as shown in FIG. 1, the object of the present invention is to form a T on the back of the case from the entire width of the upper edge to the center of the lower edge.
Forming a T-shaped portion, and then forming a portion crossing the remaining lower lower side edge portions and the T-shaped portion of the T-shaped portion and connecting the both edges horizontally. A mobile phone case with good fit can be realized by using the above-mentioned non-stretchable material and the remaining lower edge and the portion connecting the both edges with the above-mentioned stretchable material. That is, this is achieved by providing a stretchable material portion in a U-shaped, inverted U-shaped, H-shaped, O-shaped or the like, or a portion in which a horizontal connection portion is further added thereto.

In the present invention, the vertical width of one horizontal character portion of the T-shape made of a non-stretchable material may be 1 cm or more, but it should be wide enough to reach the lower part from the upper end of the attachment such as a belt loop attached to the back of the case. It is preferable to stop it above the upper end of the size change portion of the battery or the like from the viewpoint of unity when attached to the body and carried.

Further, the width of one vertical character portion of the T-shaped portion or the cut vertical single character portion may be 1 cm or more, and may not be the same width in the vertical direction, but the maximum width is the rear surface of the case. It is preferable to set the width to one third or more of the entire width from the viewpoint of a sense of unity when carrying and protecting the case.

In this patent, the front of the case, the top surface,
Materials and structures generally used for the case can be applied to each of the bottom surface and both side surfaces, but at least the front surface, the top surface and the bottom surface are preferably made of a non-stretchable material for protection of the equipment. It is preferable to use a non-stretchable material other than the size-changed portion because of the sense of unity when attached to the body and carried.

In addition, for ease of mounting the equipment and subsequent gripping of the equipment, the entirety of the material that circulates horizontally around the side, front, and side from the one-character horizontal portion of the T-shaped portion. It is preferable that the recovery rate is several percent or more.

In the present invention, the lower part on both sides of the T-shaped intersection made of a stretchable material does not need to be rectangular, but can be a curved figure such as a D-shaped character or its inverse. In other words, the purpose can be achieved even if the corners at both sides of the T-shaped intersection made of a non-stretchable material are rounded.

When a composite material is used, it can be scientifically judged from the ratio and structure of each material, and can be converted into the above numerical values and applied.

In the present invention, the term "mobile phone" refers to mobile phones, PHSs, and transceivers in a narrow sense of analog and digital systems. Not limited.

[0023]

The present invention will be specifically described below with reference to examples.

(Example) As a cellular phone material, NTT DOCOMO's digital mover N102HYPER (width 50m)
m, height 143mm, depth S size battery 25mm /
(L size battery: 28 mm) was used as the telephone material, and four types of cases having different sizes as shown in FIG. 1 were prototyped to test the fit between the case of carrying and the case of handling a call.

For all four types, soft cowhide of natural leather was used as a non-stretchable material, a 3-bar tricot knitted fabric containing spandex was used as a shrinkable material, and the inside dimensions of the case were adjusted to the dimensions of the equipment when the S-size battery was attached. The elongation at break of the non-stretchable material was 50%, and the elongation recovery rate was 30%. In addition, the elongation at break in the horizontal direction of the cloth of the elastic material used in the horizontal direction is 35.
The elongation recovery rate was 0%, and the elongation recovery rate was 93%.

The top, top, and bottom surfaces are made of a single piece of leather, and the front functional window is made of a transparent vinyl chloride film by imitating an exclusive case as shown in FIG. Necessary functional parts were also drilled. That is, from the bottom to the top surface is composed of a single piece without sewing, and furthermore, a crown portion is continuously provided at the top of the top surface and folded back to the back, both the inner surface of the crown portion and the back position that matches it Velcro was attached to the cover. The side portion corresponding to the height of one horizontal character of the T-shaped portion was made of the above-mentioned soft cowhide, and the lower portion was made of the above-mentioned tricot. The material of the part which goes around the device horizontally from the side of the T-shaped portion to the side, front, and side horizontally was cut, and the elongation recovery rate was 33%.

The lower sides of both sides of the T-shaped intersection are rounded as quarter-arcs having a radius of 3 mm, and the respective parts are sewn with a sewing machine to form a case. Attach the belt loop to the upper part of the back of the case with a thick cloth of 15mm width so that the upper part of the loop is 1cm below the top of the equipment, and attach the Velcro to the inner surface of the lower part of the belt loop and the back member in the same way as the above-mentioned canopy. , It can be attached to and detached from the belt without removing the belt.

The four different parts of the test article are the width of the T-shaped one character portion of the back non-stretchable material and the shape and width of the stretchable material. In FIG. 1, the vertical width (a) of the T-character horizontal one character portion and the width (b) of the elastic material portion are respectively (a)
a = 20, b = 10 mm width U-shaped, (b) a = 30, b
= 10mm width inverted U-shape, (c) a = 40, b = 15mm
A width H-shape, (d) a = 50, b = 15 mm and a width 0-shape.

With respect to the above four cases (a), (b), (c), and (d), the above-mentioned equipment equipped with an S-size battery was tested from two viewpoints of handling properties during a call and integration when carrying a waist by a belt loop. In all four cases, the handling property and the integrity when carried were both good. this house,
In terms of unity, Nihaloi had the best view of unity in the order of Nihaloi.
This difference was particularly noticeable when you ran and on crowded trains, but the difference was so small that you could only find it if you were conscious.

Next, when the battery was replaced with the L size, the thickness of the rear surface of the equipment was increased by 3 mm. In this state, the same tests of handling properties and portability as in the above were performed, and the evaluation was exactly the same as that of the S size battery.

(Comparative Example) For comparison, a special case (synthetic leather and elastic cloth) sold as a carrying case was attached to a belt in the same manner as in the above embodiment, and the same test as in the embodiment was performed. Also, the handling and the integration when carrying were not satisfactory. That is, the S size battery is dub-dub and has poor handling properties, and the L size battery is dub-dubed in the center of the equipment and has poor handling properties, and any of the batteries lacks a sense of unity with the waist when carried. .

By using the mobile phone case of the present invention, the lower size of the equipment such as a change in the size of the battery can be sufficiently followed and fitted, and a feeling of unity with the mobile phone can be obtained. Mobile phone use is now possible.

[Brief description of the drawings]

FIG. 1 shows an example of the back of a mobile phone case of the present invention.
From left to right, U-shaped, inverted U
Examples of a letter shape, an H shape, and an O shape are shown.

FIG. 2 shows an example of a commercially available mobile phone case (comparative example). From the left, the front, right, and back are shown. The shaded area is the elastic material.

[Explanation of symbols]

 1 Non-stretchable material part of mobile phone case 2 Stretchable material part of mobile phone case (hatched) 3 Crown part of mobile phone case 4 Belt loop (belt loop) 5 Transparent film of front function part 6 Case hole of receiving part 7 Transmission Part case hole

Claims (2)

(57) [Claims] 1. A T-shaped portion is formed on the rear surface of the case from the entire width of the upper edge to the central portion of the lower edge, and then the lower lower side edges and the lower portion of the T-shaped portion or across the T-shaped portion. Forming a portion connecting the edges horizontally, forming the T-shaped or lower T-shaped portion with a non-stretchable material, and forming a portion connecting the remaining lower side edges and both side edges with a stretchable material. Characteristic, mobile phone case with good fit. 2. The mobile phone case having a back structure according to claim 1, wherein an elastic material is also used for a part of both side surfaces of the case.