JP2014062350A - Shoulder strap of brassiere - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shoulder strap for a brassiere capable of improving the form stability of the cup part and stably maintaining a bust-shape-retention effect and bust-centering effect.SOLUTION: Each shoulder strap 10 comprises: a lifting part 14 that connects to a side edge part 50b of a cup part 50; an over-shoulder part 12 that connects to a back part 54; and a linking part 20 that links the lifting part 14 with the over-shoulder part 12. The lifting part 14 is formed in a triangular shape as viewed from the front by a strap that is inserted through the linking part 20 and links the upper end part at one end, the upper end part being the intersecting point of the upper edge part 50a and the side edge part 50b of the cup part 50, and links the side edge part 50b of the cup part 50 at the other end, the side edge part being below the one end of the upper end part.

Description

  The present invention relates to a shoulder strap for a brassiere that can stably lift a bust and maintain a beautiful bust line.

  As shown in FIG. 5, the brassiere includes a pair of left and right cup portions 550 that cover the bust, a base portion 552 that supports the cup portion 550 from below, a pair of left and right back portions 554 connected to the base portion 552, and a cup. It includes a pair of left and right shoulder straps 510 that connect the portion 550 and the back portion 554.

  The outer edge of the cup portion 550 is generally composed of an upper edge portion 550a, a side edge portion 550b, and a lower edge curved portion 550c, and the shoulder strap 510 is an upper end portion 550d that is an intersection of the upper edge portion 550a and the side edge portion 550b. It extends upward from and is connected to the back portion 554.

  Patent Document 1 discloses a brassiere 501 in which a shoulder strap 510 is connected to a lower edge curved portion 550c of a cup portion 550 and extends upward from an upper end portion 550d as shown in FIG. 5 (in FIG. 5). , See left shoulder strap 510). By connecting the shoulder strap 510 from the lower edge curved portion 550c, there is an effect of lifting the bust upward.

  On the other hand, in Patent Document 2, as shown in FIG. 6, an arbitrary short elastic suspension string 614 such as a rubber-filled string is provided on the side edge 650 b of the cup unit 650, and this is a mounting ring that can freely move up and down. A brassiere 601 is disclosed that is connected to the shoulder strap 610 in place by 620. According to the invention of Patent Document 2, by adjusting the mounting ring 620 and properly suspending the suspension position of the elastic suspension strap 614, the cup 650 is automatically deformed due to shaking during wearing. It can be corrected and can always maintain the appearance of Masami Hatasa, and the effect of lightening the wearing comfort can be achieved.

  Further, in Patent Document 3, as shown in FIG. 7, in a female garment 701 with a cup including a pair of left and right cup portions 750 and a pair of left and right shoulder straps 710, the shoulder strap 710 is tape-shaped on the front side thereof. The side reinforcing member 714 and the tape-like cup reinforcing member 712 are connected to the side edge portion 750b of the cup portion 750 so as to be smoothly continuous with the front side portion of the shoulder strap 710 in a worn state. There is disclosed a brassiere 701 in which a side reinforcing member 714 is arranged.

  In one embodiment of Patent Document 3, forces A, B, and C as shown in FIG. 7 act. That is, the tape-like side reinforcing member along the line from the upper end portion 750d of the cup portion 750 to the under tape (lower end tape of the base portion 752) 753 via the side end of the cup wire portion (lower edge curved portion) 750c. 714 is provided and is connected to the shoulder strap 710. Since the tape-like side reinforcing member 714 is smoothly continuous with the front side portion of the shoulder strap 710 in the worn state, the shoulder strap 710 pulls upward. The force A and the lateral pulling force B by the side under tape 753 and the back portion 754 are balanced. For this reason, the force C which presses the breast from the side direction is generated, and the effect of bringing the bust toward the front center is exhibited.

JP 2008-214777 A No. 41-3309 Japanese Patent No. 3506365

  However, referring to FIG. 5, in the brassieres 501, 601, and 701 described in Patent Documents 1 to 3, the side meat attached to the outside of the side edge portion 550 b of the cup portion 550 is effectively removed in front of the cup portion 550. I couldn't get to the center. For example, in the brassiere 701 of the above-mentioned Patent Document 3, the side wall meat protrudes from the side edge portion 750b of the cup portion 750 when the tape-like side reinforcing member 714 presses the side portion, and the aesthetics are impaired depending on the wearer. There was a case.

  Therefore, in order to eliminate such inconvenience and to effectively bring the side meat defined by the side edge portion 550b of the cup portion 550 to the front center portion of the cup portion 550, a shoulder strap 810 having a configuration as shown in FIG. The brassiere 801 with which it has been produced and sold.

That is, in the brassiere 801 shown in FIG.
A lifting portion 814 (814a, 814b) connected to the 0 side edge portion 850b, a shoulder portion 812 connected to the back portion 854, and a connecting portion 820 connecting the lifting portion 814 (814a, 814b) and the shoulder portion 812. The lifting portion 814 (814a, 814b) is inserted through the connecting portion 820 with the upper side of the side edge portion 850b of the cup portion 850 as one end, and the lower end from the one end of the side edge portion 850b as the other end. A string (lifting portion 814) connected to the side edge portion 850b of the portion 850 was formed in a triangular shape in front view. As shown in FIG. 8, the triangular shape includes a lifting upper edge portion 814 a from the one end to the connecting portion 820, a side reinforcing lower edge portion 814 b from the connecting portion 820 to the other end, and the one end to the other end. The side edge portion 850b is formed as three sides.

  In the brassiere 801, the configuration of the lifting portion 814 of the shoulder strap 810 is triangular as described above, so that the side reinforcing lower edge portion 814b picks up the side meat protruding from the side edge portion 850b of the cup portion 850. Thus, it is possible to form a beautiful bust that is raised at the front center of the cup portion 850.

  However, in the lifting portion 814 (814a, 814b) of the conventional brassiere 801, the lifting upper edge portion 814a is directed outward from the front center of the cup portion 850 with the upper side edge portion 850b of the cup portion 850 as one end. For this reason, there is a drawback in that the force that lifts the bust upward from the lowest point B of the lower edge curved portion 850c escapes outward (lateral direction).

  Therefore, an object of the present invention is to provide a shoulder strap for a brassiere that can improve the bust lifting effect and the shape stability of the cup portion, and can stably maintain the effect of shifting to the center of the bust and the shape retention effect.

  The shoulder strap of the brassiere according to the present invention includes a pair of left and right cup parts that have an upper edge part, a side edge part, and a lower edge curved part to support the bust, and a base that supports the lower edge curved part of the cup part from below. A bra that includes a pair of left and right back portions connected to the base portion, and a pair of left and right shoulder straps that connect the side edge portions of the cup portion and the back portion. A lifting part connected to the side edge of the part, a shoulder part connected to the back part, and a connecting part for connecting the lifting part and the shoulder part, the lifting part of the cup part A string that passes through the connecting portion with the upper end being the intersection of the upper edge and the side edge as one end, and is connected to the side edge of the cup portion with the side edge lower than one end of the upper end as the other end Thus, a triangular shape was formed in front view.

  In the shoulder strap of the brassiere according to the present invention, the triangular shape formed including the lifting portion and the connecting portion includes a lifting upper edge portion extending from one end which is the upper end portion of the cup portion to the connecting portion, The side reinforcement lower edge extending from the connecting part to the other end of the side edge of the cup part and the one end to the other end existing on the side edge of the cup part have three sides to hold the bust when worn. The force line F for extending from the lowest point B of the lower edge curved portion to the shoulder portion via the connecting portion which is the triangular top portion is extendable in a substantially straight line.

  In the shoulder strap of the brassiere according to the present invention, it is preferable that the connecting portion has a circular arc shape on the side connecting the shoulder portion, and the shoulder portion is rotatable with respect to the connecting portion.

  The shoulder strap of the brassiere according to the present invention uses the line connecting the lowest points B of the left and right lower edge curved parts of the pair of left and right cup parts as a reference line G, and when worn, the triangle from the lowest point B to the triangle. It is preferable that the angle θ of the line of force F extending to the shoulder portion through the shape of the connecting portion in a substantially straight line with respect to the reference line G is in the range of 60 to 75 degrees.

In the shoulder strap of the brassiere according to the present invention, the side reinforcing lower edge part forming the triangular shape is connected to the side edge part of the cup part, and the lowermost point m _{1 of the} other end and the lower edge point of the lower edge curved part. The angle θ ₁ of the straight line F ₁ connecting B with the reference line G is preferably in the range of 60 to 65 degrees in a front view.

In the shoulder strap of the brassiere according to the present invention, a central upper end point m _{2 of the} one end where the raised upper edge part forming the triangular shape is connected to the upper edge part of the cup part and the lowest point B of the lower edge curved part It is preferable that the angle θ _{2 with} respect to the straight line F ₂ connecting with the reference line G is in the range of 70 to 75 degrees in a front view.

  In the shoulder strap of the brassiere according to the present invention, it is preferable that an angle η formed by the lifting upper edge portion and the side reinforcement lower edge portion forming the triangular shape is in a range of 29 degrees to 35 degrees.

  The shoulder strap of the brassiere according to the present invention includes a lifting upper edge portion that extends from one end that is the upper end portion of the cup portion to the connecting portion, and a side that extends from the connecting portion to the other end of the side edge portion of the cup portion. Since the reinforcing lower edge and the triangular shape having three sides from one end to the other end of the side of the cup portion are formed, like the shoulder strap of the brassiere, the side reinforcing lower edge portion forming the triangular shape has It has the effect of picking up the side meat that protrudes from the side edge of the cup part, and can form a beautiful bust that rises in the front center part of the cup part.

  However, in the above-described conventional brassiere, the string forming the triangular shape has the upper part of the side edge of the cup part as one end, and the upper edge part extends outward from the center of the cup part so that the connecting part is inserted. Therefore, the force acting on the lifting upper edge is directed outward from the center of the cup part, and the force of lifting the bust upward from the lowest point B of the lower edge curved part escapes in the lateral direction. It was. Therefore, in the shoulder strap of the brassiere of the present invention, one end P of the lifting upper edge portion forming the lifting portion is the upper end portion that is the intersection of the upper edge portion and the side edge portion of the cup portion. It has become possible to extend the cup portion in the upward direction as compared with the conventional case.

  Further, since the shape of the connecting portion on the side where the shoulder portion is connected is an arc shape and the shoulder portion can be rotated with respect to the connecting portion, the shoulder portion can be rotated with respect to the triangular shape. Therefore, a beautiful bust lifted upward by adjusting the force line F extending from the lowest point B of the lower edge curved portion of the cup portion to the shoulder portion through the connecting portion forming the triangular shape, is lifted upward. It becomes easy to form a line.

  That is, the shoulder strap of the brassiere of the present invention has a line of force F for holding the bust when worn from the lowest point B to the shoulder portion via the connecting portion which is the triangular top. It can be stretched in a substantially straight line. Therefore, the force that lifts the bust upward from the lowest point B of the lower edge curved portion does not escape in the lateral direction, and the effect that the side reinforcing lower edge portion picks up the side meat complements and holds the bust ideally. be able to. In addition, since the shoulder strap was comprised from the lifting part and the shoulder part, and the lifting part was formed in triangle shape by front view, the float from the body of a brassiere can be prevented and it can contact | adhere to a body and can improve a feeling of fit.

The front view of the brassiere concerning the present invention. The back view of the brassiere concerning the present invention. The enlarged view of the lifting part of the shoulder strap of the brassiere according to the present invention. The enlarged view of the lifting part of the shoulder strap of the brassiere according to the present invention. The front view of the left cup of the conventional brassiere, and the back view of a right cup. The perspective view of the conventional brassiere. The perspective view of the conventional brassiere. The back view of the conventional brassiere.

  Referring to FIG. 1, a shoulder strap 10 of a brassiere 1 according to the present invention includes a pair of left and right cup portions 50 that have an upper edge portion 50 a, a side edge portion 50 b, and a lower edge curved portion 50 c to support a bust, and a cup The base part 52 that supports the lower edge curved part 50c of the part 50 from below, the pair of left and right back parts 54 connected to the base part 52, and the left and right sides that connect the side edge part 50b of the cup part 50 and the back part 54 In a brassiere including a pair of shoulder straps 10, a lifting portion 14 (14a, 14b) connected to the side edge portion 50b of the cup portion 50, a shoulder portion 12 connected to the back portion 54, and a lifting portion 14 (14a, 14b). ) And the shoulder portion 12.

  In the shoulder strap 10 of the brassiere 1, the lifting portion 14 (14a, 14b) is inserted through the connecting portion 20 with the upper end portion 50d, which is the intersection of the upper edge portion 50a and the side edge portion 50b of the cup portion 50, as one end P. And it formed in the triangle shape by the front view by the string connected with the side edge part 50b of the cup part 50 by making the downward direction from the one end P of the side edge part 50b into the other end Q.

  As shown in FIG. 1, the triangular shape including the lifting portion 14 (14 a, 14 b) and the connecting portion 20 is a lifting top extending from the one end P that is the upper end portion 50 d of the cup portion 50 to the connecting portion 20. The edge part 14a, the side reinforcing lower edge part 14b extending from the connecting part 20 to the other end Q of the side edge part 50b of the cup part 50, and the one end P to the other end Q existing in the side edge part 50b of the cup part 50 Three sides. It is preferable that the lifting upper edge portion 14a and the side reinforcement lower edge portion 14b, which form the two sides of the triangle formed of one string, are firmly fixed by the connecting portion 20.

  Conventionally, since the string forming the triangular shape has been inserted through the connecting portion 20 in an obliquely laterally upward direction with the upper side of the side edge portion 50b of the cup portion 50 as one end, the lifting upper edge portion 14a is in front of the cup portion 50. There is a drawback that the force that lifts the bust upward along the upper edge of the lift from the lowermost point B of the lower edge curved portion 50c escapes in the lateral direction. However, since the shoulder strap 10 of the brassiere 1 of the present invention has the upper end 50d that is the intersection of the upper edge 50a and the side edge 50b of the cup 50 as one end P of the lifted upper edge 14a, It has become possible to extend the portion 14 a in the upward direction with respect to the cup portion 50.

  Further, in the shoulder strap 10 of the brassiere according to the present invention, the connecting portion 20 is, for example, referring to FIGS. 3 and 4, the shape on the side connecting the shoulder portion 12 is an arc shape, and the shoulder portion 12 is connected to the connecting portion 20. It is preferable to be able to rotate with respect to. By making the shoulder portion 12 pivotable with respect to this triangular shape, the force line F for holding the bust when worn is set to the upper end portion from the lowest point B of the lower edge curved portion 50c as shown in FIG. It becomes possible to extend substantially linearly in the direction of the shoulder portion 12 through 50d (one end P) and the connecting portion 20.

  That is, as shown in FIG. 2, the shoulder strap 10 of the brassiere 1 of the present invention has a line of force F for holding the bust when the brassiere 1 is worn, with the triangular shape from the lowest point B of the lower edge curved portion. Can be extended substantially linearly over the shoulder portion 12 via the connecting portion 20 that is the top of the cup portion (however, since the cup portion 50 is a curved surface in FIG. The arrow that represents is curved).

  In this way, the line of force F for holding the bust contained in the cup portion 50 indicated by the arrow in FIG. 2 is connected to the triangular top portion from the lowest point B of the lower edge curved portion 50c of the cup portion 50. The side reinforcing lower edge portion 14b picks up the side meat protruding from the side edge portion 50b of the cup portion 50 to the front center portion of the cup portion 50 by extending it in the direction of the shoulder portion 12 through the portion 20. At the same time, the effect of raising the bust upward is produced, and it is possible to form a bust having a more beautiful appearance than before. In FIG. 2, the force line F draws a curve, but this is due to the three-dimensional structure of the brassiere 1, so that the wearer can make the wearer substantially straight from the lowest point B of the lower edge curved portion 50 c toward the shoulder portion 12. The force (force line F) that raises the bust in the front center upward direction will be felt.

  The brassiere 1 can be manufactured by the same method as a known brassiere. In the shoulder strap 10, the lifting upper edge portion 14 a and the side reinforcement lower edge portion 14 b, which form the two sides of the triangle, are sewn or the like on the back of the tape forming the side edge portion 50 b of the cup portion 50. Fix it. As described above, the lifting upper edge portion 14a and the side reinforcement lower edge portion 14b are formed of a single string, and for example, as shown in FIG. 3, one end of the string so that the surface side becomes the front surface of the lifting upper edge section 14a. It fixes to P, the said string is reversed by the connection part 20, and an edge part is fixed to the other end Q by making the back surface side of a string into the front surface of the side reinforcement lower edge part 14b. As described above, it is preferable that the shoulder portion 12 is rotatably connected to the connecting portion 20 with a ring-shaped end portion.

  The constituent material of the brassiere 1 according to the present invention thus formed is not particularly limited, and the brassiere 1 can be formed of the same material as a commercially available brassiere. The cup portion 50 is formed by sandwiching a cushion material between a surface material made of tricot or the like and a lining material made of knitted fabric, cotton, polyester, or the like, and thermocompression bonding by a known means.

  The material of the shoulder portion 12 and the lifting portion 14 (14a, 14b) constituting the shoulder strap 10 is not particularly limited, and the connecting portion 20 can be formed of metal or plastic as in the conventional product. The material is not particularly limited as long as the material has a hardness of 5 mm.

  As described above, the shoulder strap 10 of the brassiere 1 according to the present invention has a line of force F for holding the bust from the lowest point B of the lower edge curved portion when the brassiere 1 is worn, as shown in FIG. It is preferable to extend substantially linearly over the shoulder portion 12 via the connecting portion 20 which is the triangular top.

Therefore, in the first embodiment, first, as shown in FIG. 4, the lowest point of the other end Q at which the side reinforcing lower edge portion 14b forming the triangular shape is connected to the side edge portion 50b of the cup portion is denoted by m ₁ . likewise the central end point of the one end P of lifting the edge portion 14a forming the triangular connects to the upper flange 50a of the cup portion and m _2, the right and left lower edge curved portion 50c of the right and left of the cup portion 50 A line connecting the lowest points B is defined as a reference line G. The straight line connecting the lowest point m ₁ of the other end Q and the central point m ₂ of the one end P to the lowest point B of the lower edge curved portion is defined as F ₁ and F ₂ , and the straight lines F ₁ and F 2 ₂ measured the angles θ ₁ and θ ₂ with respect to the reference line G in a front view.

Table 1 below shows the angles θ ₁ and θ ₂ for products of cup sizes A, B, C, and D of the brassiere 1 according to the present invention having underbust sizes of 65 cm, 70 cm, and 75 cm, respectively. It was measured for 3 samples arbitrarily selected from products of cup size and underbust size.

From Table 1, in any sample arbitrarily selected from products of each cup size and underbust size, the angles θ _{1 to} θ ₂ were generally 60 degrees to 70 degrees. The product with an underbust size of D of 75 cm had a deviation of about 5 degrees. Therefore, the following (1) to (3) were concluded for the shoulder strap 10 of the brassiere 1 according to the present invention.

(1) The lower end point m ₁ of the other end Q where the side reinforcing lower edge portion 14b forming the triangular shape is connected to the side edge portion 50b of the cup portion 50, and the lowermost point B of the lower edge curved portion 50c. The angle θ ₁ of the connecting straight line F ₁ with respect to the reference line G is preferably in the range of 60 to 65 degrees in a front view. More preferably, the angle θ ₁ is about 60 degrees.

(2) a straight line connecting the central end point m ₂ at one end P to be connected to the upper edge 50a of the lifting on the edge 14a is cup portion 50 forming the triangular shape, and a lowest point B of the lower edge curved portion 50c F ₂ is preferably in an angle θ _{2 with} respect to the reference line G in the range of 70 to 75 degrees in a front view. More preferably, the angle θ ₂ is about 70 degrees.

  (3) Using the line connecting the lowest points B of the left and right lower edge curved portions 50c of the pair of left and right cup parts 50 as a reference line G, the line of force F is triangular from the lowest point B when worn. It is preferable that the angle θ of the straight line F extending to the shoulder portion 12 in a substantially straight line through the connecting portion 20 with respect to the reference line G is in the range of 60 degrees to 75 degrees.

However, as described above, in FIG. 4, the arrow representing the force line F is slightly curved because the cup portion 50 is a curved surface, but F ₁ and F ₂ are not curved because they are straight lines in front view. Defined. Therefore, the angle θ of the force line F with respect to the reference line G can vary along the force line F, but is substantially in the range of angles θ _{1 to} θ ₂ , that is, in the range of 60 to 75 degrees from the measurement result. Admitted.

  As described above, as shown in FIG. 4, the shoulder strap 10 of the brassiere 1 of the present invention has the lifting portion 14 (14a, 14b) at the intersection of the upper edge portion 50a and the side edge portion 50b of the cup portion 50. It is formed in a triangular shape when viewed from the front by a string that connects the connecting portion 20 with the upper end 50d as one end P and connects to the side edge 50b of the cup portion 50 with the other end Q below the one end P of the side edge 50b. ing.

This triangular shape prevents the bra from floating from the body and can be closely attached to the body to enhance the feeling of phyto, but the side reinforcing meat that the side reinforcing lower edge portion 14b forming the triangular shape picks up, lifts the upper edge portion 14a is an element that characterizes the present invention and has the effect of lifting upward together with the bust.

  Therefore, in Example 2, as shown in FIG. 4, the optimum angle η formed by the lifting upper edge portion 14a and the side reinforcing lower edge portion 14b forming the triangular shape was measured.

  Table 2 below shows the angle η with respect to the product of the brassiere 1 according to the present invention in which the underbust sizes of the cup sizes A, B, C, and D are 65 cm, 70 cm, and 75 cm, respectively, as in Example 1. It was measured for 3 samples arbitrarily selected from products of each cup size and underbust size.

  As is clear from Table 2, in the shoulder strap 10 of the brassiere 1 according to the present invention, the angle η formed by the lifting upper edge portion 14a and the side reinforcement lower edge portion 14b forming the triangular shape is 29 degrees to 35 degrees. It was suitable to be in the range.

  As mentioned above, although the brassiere of this invention was demonstrated using embodiment and an Example, this invention is not limited to the said embodiment etc. The configuration of the shoulder strap of the brassiere of the present invention can also be applied to a swimsuit having a shoulder strap other than a brassiere, a leotard, a dress with a cup, a brass slip and the like.

  In addition, the present invention can be carried out in a mode in which various improvements, modifications, and changes are added based on the knowledge of those skilled in the art without departing from the spirit of the present invention.

  The brassiere according to the present invention can be used not only for underwear with shoulder straps such as a brassiere, but also for swimwear with shoulder straps, leotards, dresses with cups, brass slips, and the like.

1: Bra 10 according to the present invention: Shoulder strap 12: Shoulder hanging part 14: Lifting part 14a, 814a: Lifting upper edge part 14b, 814b: Side reinforcement lower edge part 20: Connection part 50: Cup part 50a, 550a: Upper edge Portions 50b, 550b: Side edge portions 50c, 550c: Lower edge curved portion 50d (P): Upper end portion 52, 552: Base portion 54, 554: Back portions 501, 601, 701, 801: Conventional brassieres 510, 610, 710, 810: Shoulder strap (shoulder strap)
550, 650, 750, 850: cup portion 550d: upper end portion 614: elastic suspension strap 620: mounting ring 650b, 750b, 850b: side edge portion 714 of cup portion: side reinforcing member 712: cup reinforcing member 750c, 850c: Cup wire part (lower edge curved part)
750d: upper end portion 752: base portion 753: under tape 754, 854: back portion 812: shoulder portion 814 (814a, 814b): lifting portion 814a: lifting upper edge portion 814b: side reinforcement lower edge portion 820: connecting portion B: Lowermost point G of lower edge curved portion: reference line P: one end Q: other end m ₁ : lowest point m ₂ : center side end point

Claims (7)

A pair of left and right cup parts that have an upper edge part, a side edge part, and a lower edge curved part to support the bust, a base part that supports the lower edge curved part of the cup part from below, and connected to the base part In a brassiere comprising a pair of left and right back parts, and a pair of left and right shoulder straps connecting the side edge part of the cup part and the back part,
The shoulder strap is
A lifting part connected to the side edge of the cup part;
A shoulder portion connected to the back portion;
A connecting portion for connecting the lifting portion and the shoulder portion;
Consisting of
The lifting portion is inserted through the connecting portion with an upper end portion that is an intersection of the upper edge portion and the side edge portion of the cup portion as one end, and with the side edge portion below the one end of the upper end portion as the other end. A shoulder strap of a brassiere formed in a triangular shape in front view by a string connected to the side edge of the section. The triangular shape including the lifting portion and the connecting portion is,
A lifting upper edge extending from one end which is the upper end of the cup portion to the connecting portion, a side reinforcing lower edge extending from the connecting portion to the other end of the side edge of the cup portion, and the cup portion Three sides from one end to the other end in the side edge,
At the time of wearing
A line of force F for holding the bust can extend substantially linearly from the lowest point B of the lower edge curved portion to the shoulder portion via the connecting portion which is the top of the triangle.
The shoulder strap of the bra according to claim 1. The connecting portion is
The shape on the side connecting the shoulder portions is an arc shape,
The shoulder strap of the brassiere according to claim 2, wherein the shoulder portion is rotatable with respect to the connecting portion. As a reference line G, a line connecting the lowest points B of the left and right lower edge curved portions of the pair of left and right cup portions,
At the time of wearing
The angle θ of the force line F extending from the lowest point B to the shoulder portion in a substantially straight line via the triangular connecting portion with respect to the reference line G is in the range of 60 degrees to 75 degrees. The bra strap of the brassiere according to claim 2. A straight line F ₁ connecting the lowest point m _{1 at the} other end where the side reinforcing lower edge part forming the triangular shape is connected to the side edge part of the cup part and the lowest point B of the lower edge curved part, angle theta ₁ with respect to the reference line G lies in the range of 60 to 65 degrees when viewed from the front, shoulder straps of the brassiere according to claim 4. A straight line F ₂ connecting the central end point m _{2 of the} one end where the lifting upper edge part forming the triangular shape is connected to the upper edge part of the cup part and the lowest point B of the lower edge curved part is the reference the angle theta ₂ with respect to line G, exists in the range of 70 to 75 degrees when viewed from the front, shoulder straps of the brassiere according to claim 4. The shoulder strap of the brassiere according to any one of claims 1 to 6, wherein an angle η formed by the lifting upper edge portion and the side reinforcement lower edge portion forming the triangular shape is in a range of 29 degrees to 35 degrees. .

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