JP3176206U - bra - Google Patents

Abstract

[PROBLEMS] To suppress the displacement of shoulder straps and the back cloth, a structure in which moderate pressure is applied to the shoulder and the center of the body, and the body's line is beautifully maintained without impairing the brassiere's original retention and compensation functions. Providing a bra that excels in production.
A cup portion covering a bust, a base portion 2 sewn to the cup portion, a back portion 3 extending from the end portion of the base portion to the back side, a cup portion and a back portion, And a pair of shoulder straps 5 connected to each other to form a brassiere. Further, the back portion 3 is provided with a stretchable strap 7 along the upper side thereof, and the upper side of the back portion 3 is recessed between the joint portions 33 of the shoulder strap 5 and the back portion 3. A parabolic curve that satisfies the following conditional expression is formed from the shoulder strap 5 to the strap 6 when worn.
y = aX ^2.2 , 0.002 ≦ a ≦ 0.005
[Selection] Figure 2

Description

  The present invention relates to a shoulder strap slippage prevention structure for a brassiere, which is a female underwear.

  2. Description of the Related Art Conventionally, as a common form of a brassiere, which is an underwear for women, a bra with a wide interval between shoulder straps is known in order to be worn as underwear for clothing with an open back.

  These types of brassieres have a problem that the shoulder strap is more likely to slip off the shoulder strap by a little movement or the like because the engagement portion of the shoulder strap closer to the shoulder is closer.

  In order to solve such a problem, Patent Documents 1 and 2 propose a structure in which a support string is reinforced to a shoulder string of a brassiere body as a structure for preventing a shoulder string from slipping off. Patent Document 3 discloses a structure in which a substantially ρ-shaped shoulder strap is connected to the center of the back.

  However, in Patent Documents 1 and 2, the comfort is lost by reinforcing with a support string, and the appearance is also lacking in design. In addition, in Patent Document 3, the relationship between the stretchability of the shoulder strap and the back cloth portion, the shape of the curved back portion, the joining with the shoulder strap, and the like are not specified, and the shoulder strap may be displaced outward, There was a possibility that the cloth would slide up.

Utility model registration No. 3110051 Utility model registration No. 3114995 JP-A-11-152608

  Therefore, the present invention is a bra with a shoulder strap, which has a backrest and has a structure in which moderate pressure is applied to the shoulder and the center of the body in order to suppress the displacement of the shoulder strap and the back cloth, and the brassiere's original holding function Therefore, it is an object of the present invention to provide a brassiere excellent in producing a beautiful body line without impairing the correction function.

The present invention solves the above-described problem, and includes a cup portion that covers a bust, a base portion that is sewn to the cup portion, and a back portion that extends from the end portion of the base portion toward the back side. A brassiere comprising a pair of shoulder straps connecting the cup portion and the back portion, wherein the back portion is provided with a stretchable strap along its upper side, and the shoulder strap and the back portion A brassiere characterized in that the upper side between the joints is recessed, and forms a parabolic curve satisfying the following conditional expression from the shoulder strap to the strap when worn.
y = aX ^2.2 , 0.002 ≦ a ≦ 0.005
It is.

  The brassiere of the present invention can prevent the shoulder strap from slipping out without interfering with the bust holding / compensating action by specifying the continuous shape from the shoulder strap to the strap provided on the upper side of the back portion.

  Further, by specifying the relationship between the shoulder strap of the brassiere of the present invention and the stretchability of the strap provided on the upper side of the back portion, it is possible to prevent the back portion from sliding up.

The front view in the wearing condition of the brassiere concerning the present invention. The rear view in the wearing condition of the brassiere concerning the present invention. The front view of the brassiere concerning the present invention.

  Hereinafter, an embodiment of the brassiere of the present invention will be specifically described with reference to the drawings. Note that the present invention is not limited to these embodiments.

  1 is a front view of a brassiere according to the present invention in a worn state, FIG. 2 is a rear view thereof, and FIG. 3 is a front view of the brassiere according to the present invention. In the figure, 1 is a cup part, 2 is a base part, 3 is a back part, 4 is an under belt, 5 is a shoulder strap, 6 is a strap, 7 is a strap, 8 is a strap, 9a and 9b are locking devices, 11 is Upper part of the cup part, 12 is the upper part of the cup part, 13 is the lower part of the cup part, 21 is the end, 31 is the upper part of the back part, 32 is the upper part of the back part, 33 is the joint, 51 is the length adjuster, 52 is the connector Each is shown.

  As shown in the figure, a brassiere according to the present invention includes a cup part 1 that covers a bust, a base part 2 that is sewn to the lower side of the cup part 1, and an end part 21 of the base part 2 that extends from the back side to the back side. The back portion 3 is formed so as to cover the chest circumference, and the under belt 4 is continuously provided at the lower end portions of the base portion 2 and the back portion 3. A pair of shoulder straps 5 that connect the top portion of the cup portion 1 and the joint portion 33 of the back portion 2 are provided.

  Hereinafter, each part will be described in detail. A pad for holding the breast part is provided inside the cup portion 1 (not shown). And the base part 2 is sewn on the lower side 13 of the cup part 1, and the strap 6 which has a stretching property is provided in the upper side 11. As shown in FIG. In this embodiment, the strap 6 is provided in a state where the end of the cup portion 1 is folded downward along the upper side 11.

  A back portion 3 continuous from the armpit to the back is sewn on the left and right end portions 21 of the base portion 2. The back part 3 forms a mountain shape whose top side is the junction part 33 as a top, and straps 7 and 8 having elasticity are provided along the top sides 31 and 32 constituting the ridge line of the mountain shape, respectively. . Similar to the strap 6, the straps 7 and 8 are provided along the upper sides 31 and 32 while folding the end of the back portion 3 downward. Further, locking tools 9a and 9b that can be locked to each other when worn are provided at the end of the back 3 opposite to the side sewn to the end 21. In addition, it is preferable to comprise the back part 3 by the knitted fabric which has a stretching property in a horizontal direction, and specifically, it consists of the power net which consists of polyester and polyurethane, 1WAY satin knitting which consists of nylon and polyurethane, and cotton and polyurethane. Milling or the like is preferred.

  A shoulder strap 5 is joined to the top of the cup portion 1 via a ring-shaped connector 52. The shoulder strap 5 extends from the cup portion 1 to the shoulder, and is connected to the joint portion 33 on the upper side of the back portion 3 on the back side. At the joint portion 33, the end portion of the shoulder strap 5 is sewn to the end portion of the strap 8 in such a manner that the shoulder strap 5 and the strap 8 are continuous.

As shown in FIG. 2, when the brassiere of the present invention is worn, the upper side 32 between the joint portions 33 is recessed downward to form a continuous parabolic curve from the shoulder strap 5 to the strap 8. At this time, the parabolic curve is formed so as to satisfy the conditional expressions y = aX ^2.2 and 0.002 ≦ a ≦ 0.005. Further, when worn, the shoulder strap 5 forms an inclination angle θ outside the contact point between the inclined straight line passing through the joint portion 33 starting from the shoulder and the underbelt 4. At this time, the inclination angle θ is formed in a range of 55 ° ≦ θ ≦ 75 °. In this way, by setting the parabolic curve shape and the inclination angle of the shoulder strap in the direction of the outside of the body within a predetermined range, the strap 8 is locked to the apex (the lowest point) of the parabolic curve from the joint portion 33. Combined with the fact that the lateral force gradually increases toward the tool 9, and is pulled toward the center of the back while maintaining a constant inclination angle with respect to the underline (horizontal line) in the shoulder strap 5, It is possible to effectively prevent slippage from the shoulder. When the inclination angle θ of the shoulder strap toward the outside of the body is less than 55 ° and a is less than 0.002 in the parabolic curve y = aX ^2.2 , the shoulder strap is displaced from the shoulder by the inclination angle of the shoulder. It is not appropriate because it has a falling effect. On the other hand, when the inclination angle θ of the shoulder strap toward the outside of the body is greater than 75 ° and a is greater than 0.005 in the parabolic curve y = aX ^2.2 , a lateral force is applied to the strap 8. However, it is not appropriate because a force in the vertical direction acts to push up the locking device 9 of the back portion upward and loosen the shoulder strap.

  Both the shoulder strap 5 and the strap 8 are formed of elastic fibers having stretchability in the longitudinal direction, but the shoulder strap 5 is less stretchable than the strap 8 (not easily stretched). Has a great elasticity (easily stretched) with respect to the shoulder strap 5. In this way, by increasing the stretchability of the strap 8 with respect to the shoulder strap 5, the shoulder strap 5 becomes less likely to stretch against the upward force caused by the movement of the shoulder, and is fixed to the shoulder. On the other hand, since the strap 8 is easily stretched, the upper side 32 is stretched, and the parabolic curve absorbs the pulling force of the shoulder strap 5, suppresses the back portion 3 from being lifted and contracts to the original state. In addition, the material of the shoulder strap 5 and the straps 7 and 8 is preferably a combination of polyurethane and nylon or polyurethane and polyester, and can be stretchable depending on the mixing ratio of these materials.

DESCRIPTION OF SYMBOLS 1 ... Cup part 2 ... Base part 3 ... Back part 4 ... Under belt 5 ... Shoulder strap 6 ... Strap 7 ... Strap 8 ... Strap 9 ... Locking tool 11 ... Cup part upper side 12 …… Upper side of cup part 13 …… Lower side of cup part 21 …… End part 31 …… Upper side of back part 32 …… Upper side of back part 33 …… Joint part 51 …… Length adjustment tool 52 …… Connector θ …… Shoulder strap 5 tilt angle

Claims (4)

A cup part covering the bust, a base part sewn to the cup part, a back part extending from the end part of the base part to the back side, and a pair of shoulders connecting the cup part and the back part A bra provided with a string, wherein the back part is provided with a stretchable strap along the upper side thereof, and the upper side between the joint part of the shoulder string and the back part is notched and worn. A bra characterized by forming a parabolic curve that sometimes satisfies the following conditional expression from the shoulder strap to the strap.
y = aX ^2.2 , 0.002 ≦ a ≦ 0.005   The inclination angle θ outside the contact point between the inclined straight line through which the shoulder strap starts from the shoulder and the joint with the back portion and the underbelt when worn is formed in a range of 55 ° ≦ θ ≦ 75 °. The brassiere according to claim 1.   3. The brassiere according to claim 1, wherein both the strap and the shoulder strap have elasticity, and the elasticity of the strap is larger than the elasticity of the shoulder strap. The brassiere according to any one of claims 1 to 3, wherein a locking tool is provided at an end of the back portion.

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