JP4148450B2 - Strapless bra - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a strapless brassiere that does not have a shoulder strap attached, and in particular, reliably reduces the area of the support cloth attached to the side of the cup part so that it is difficult to be exposed to the outside without tilting the cup part forward. It is designed to be supported.
[0002]
[Prior art]
When wearing an outer-shoulder-type outer, the bra is a strapless bra without a shoulder strap.
Since this type of strapless brassiere does not have the force to support the cup portion by pulling it upward with a shoulder strap, as shown in FIG. 9, the support cloth 2 sewn on the side of the cup portion 1 is the cup portion 1. The cup portion 1 is supported by increasing the width from the side upper end point P1 to the lower end point P2 and increasing the pulling force toward the back side.
[0003]
Further, as this type of strapless brassiere, the present applicant has provided Japanese Patent Application Laid-Open No. 2001-81609. In the brassiere, as shown in FIG. 10, the left and right back cloths 2 that support the cup part 1 are composed of two upper and lower tapes 3, and these two tapes 3 are connected to the cup part 1 via links 4. The tape 3 is bound by a locking link 5 on the back side so that the movement of the wearer can be easily followed.
[0004]
Furthermore, in JP-A-2001-115305, as shown in FIG. 11, a pair of upper and lower tapes 3 'are connected to the side cloth sewn on the cup part 1, and these tapes 3' are crossed at the center of the back surface. And it is a front opening type.
[0005]
[Problems to be solved by the invention]
In recent years, there is an increasing number of cases where outers of a type in which the upper part is completely exposed from the bust such as a tank top and the upper part of the back is also exposed are worn. Furthermore, the length of the outer top may be shortened due to a trend such as umbilical drapery fashion, and the degree of exposure may increase.
When the outer part such as the tank top with the bust upper part and the upper back part exposed is worn, the strapless brassiere shown in FIGS. 9, 10, and 11 has a side supporting cloth at the side upper end point P1 of the cup part. Since the tape and the tape are sewn, the supporting cloth and tape on the side are protruded from the outer and easily exposed to the outside, and the supporting cloth is easily exposed to the outside on the back side.
[0006]
Furthermore, in addition to the above-mentioned problems in appearance, there is a problem that a tight feeling is caused when a wide support cloth is present near the armpit as shown in FIG.
In addition, the brassiere shown in FIG. 11 has a drawback that the upper and lower sides of the support cloth tend to squeeze and collapse when the body is moved, particularly when the body is twisted.
Further, in the brassiere shown in FIG. 10, the tape-like object is likely to cause a step in the body contact part and easily resonates on the outer, and when the arm is lifted, the tape-like object moves upward from the outer side or back part. There is also a problem that the tape-like material is easily exposed.
[0007]
To prevent the side part of the supporting fabric connected to the cup from being exposed to the outside, the upper end line of the side part needs to be lowered rapidly, and to prevent it from being exposed on the back side, the rear side It is necessary to reduce the width of the part.
However, in particular, when the upper end line of the side portion of the supporting cloth is suddenly lowered to reduce the area of the supporting cloth, the supporting force on the side surface, particularly the upper side of the cup portion is reduced, and the cup is moved upward by the shoulder strap. Since there is no function to pull and support, there is a problem that the cup portion is not stably held, and the bust silhouette cannot be beautifully shaped by moving forward.
Further, if the width is narrowed so that the back portion is not exposed to the outside, the pulling force toward the back side is also reduced, and the support force of the cup portion is also reduced from this point.
In addition, a short type bra with a short base cloth sewn on the lower front part of the cup part is worn on the short top, but this short type bra reduces the force to support the cup part from below, There is a problem that the cup part is more likely to be brought forward.
[0008]
The present invention has been made in view of the above problems. In the strapless brassiere, the side upper end line of the support cloth is suddenly lowered so as not to be exposed to the outside. As a brassiere, the problem is to make it possible to hold the cup part stably without falling forward.
[0009]
[Means for Solving the Problems]
The present inventor has conducted intensive research on a method in which a tensile force applied from the side side to the back side can be most effectively applied to the brassiere, and as a result of repeated experiments, the side line upper end line of the support cloth has been studied. Developed a strapless brassiere that can stably support the cup without tilting it forward even if it is lowered rapidly.
[0010]
That is, according to the present invention, the support cloth that is sewn to the left and right cup portions and extends from the side to the back side has the upper end line steeply inclined downward from the side upper end point of the cup portion to the vicinity of the side line. The back part extending from the vicinity of the side line to the back side is narrow,
A half point of a straight line L1 connecting a point A where the center line in the width direction of the back side of the support cloth contacts the cup part and a point B located in the center of the back side of the support cloth is defined as a C point, and the C point and the cup A straight line S1 connecting the upper side point D of the cup side, and an isosceles triangle C- with the C point as the apex, where the straight line S2 having the same dimensions as the straight line S1 hits the lower side of the cup part from the C point. Draw E-D, and set so that the angle θ at which the extended line of perpendicular line L2 extending from point C to line S3 between D and E intersects the straight line L1 is in the range of 14 ° <θ <21 °. A strapless brassiere characterized in that the side upper end line is steeply inclined downward along the straight line S1 and the side lower end line is set along the straight line S2. providing.
[0011]
In the brassiere, the pulling force to the back side with the support cloth draws an isosceles triangle having a straight line S1 connecting the fulcrum C and the cup portion side upper end point D as one side, and from the point C that is the vertex of the isosceles triangle It is most effective when the extension line of the perpendicular line L2 to the bottom matches the reference line of the force drawn to the back side of the support cloth. In other words, when the reference line (L1) pulled to the back side of the support cloth is made coincident with the perpendicular line, the cup portion can be brought into close contact with the bust even with the minimum area.
In the strapless brassiere of the present invention, there is no force to bring the cup portion upward by close contact with the shoulder strap, and it is necessary to bring the cup portion into close contact only by pulling the cup portion to the back side with a supporting cloth. If the perpendicular line L2 of the equilateral triangle is slightly inclined downward toward the back side from the reference line L1, the force for pulling the upper end point of the cup part toward the back side can be strengthened, and the stability of attaching the cup part to the bust is improved. Can do. The inventor of the present invention has found that 14 ° <θ <21 ° as a result of repeated experiments on a preferable range of the downward inclination angle θ (the angle at which the extended line of the perpendicular L2 intersects the straight line L1).
Therefore, the side upper end point of the cup portion can be firmly pulled to the back side even if the line is along the side upper end line along the isosceles straight line S1. In other words, it is not necessary to spread the side support cloth above the straight line S1, and the side upper end line may be cut to the line of the straight line S1.
Further, a straight line S2 connecting the base point C and the side lower end point E of the cup portion serves as a reference line for a force that pulls the lower side of the cup portion toward the back side. You can pull the lower side firmly to the back side.
[0012]
Since the said side upper end point D is prescribed | regulated according to the size, shape, etc. of a cup part, the side upper end line S1 (line which connects DC) is set according to C point. The point C is determined by the length L1 and the width W of the support cloth, and the length L1 is defined according to the size. Therefore, when the C point which changes according to the width W of the back surface portion of the support cloth is determined, the side upper end line S1 is defined.
[0013]
Therefore, when the mutual positional relationship satisfying the relationship of 14 ° <θ <21 ° is set according to the width set from the viewpoint of design, the side side along the straight line S1 is set. It has been found from experiments that even if the upper end line is lowered rapidly, the cup portion can be stably supported without causing forward tilt.
According to experiments, when the angle θ is smaller than 14 °, it has been found that the force for pulling the upper side of the cup portion toward the back side becomes weak, and the brassiere cannot be tightly wrapped around the body and stabilized.
On the other hand, it has been found that when θ exceeds 21 °, the force to pull the lower side is weak, and the cup portion cannot be stably adhered to the bust.
[0014]
Therefore, if the straight line S1 connecting the C point and the D point is in a positional relationship satisfying the relationship of 14 ° <θ <21 °, the side upper end line is provided along the straight line S1 and rapidly descends. As a line, it can be stably supported with the bra in close contact with the bust.
The angle θ is most preferably in the range of 18 ° <θ <19 °.
[0015]
The side upper end line may be completely coincident with the straight line S1, but by substantially matching the straight line S1 from the D point to the ½ point to the C point, the support cloth protrudes to the outside and is exposed. Can be prevented.
[0016]
The width W of the back surface of the support cloth varies depending on the size of the brassiere, particularly the size of the cup, but is set in the range of 10 mm to 40 mm, preferably 20 mm to 37 mm.
[0017]
The strapless brassiere can be applied to both the rear center opening / closing type and the front center opening / closing type.
The rear center opening and closing type, the support cloth sewn to the left and right cup parts respectively, is locked by a fastener at the center of the back,
The back center position B is a front end position on the back side of the left and right support cloths to which the fastener is attached.
In addition, the front center opening and closing type is such that the back side of the support cloth is continuous at both sides to the left and right side parts,
The back center position B is approximately a half position in the length direction of the back surface. More specifically, the point B is defined as a position about 1 cm closer to the front cup side from the back center position.
[0018]
Further, the supporting cloth may be formed of a single piece of cloth on the side part and the back part, and the supporting cloth is formed by separating the side part and the back part on a separate cloth and integrated by sewing. May be.
Moreover, it is preferable to form the side portions of the support cloth with a material that does not stretch, and to suppress the side portions of the bust because the side flows of the bust can be suppressed. Therefore, a core material or the like may be inserted into the side portion to enhance the correction function.
[0019]
In a strapless brassiere, a long type brassiere with a long base fabric that supports the left and right cups from below has a large support force for the cup from below, but there is no base fabric or a short type bra with a small base fabric. Then, the supporting force of the cup part from below becomes small.
The strapless brassiere of the present invention is a short type and is set so that the pulling force by turning the lower side of the cup part from the side to the back side is most effectively applied, even if the support of the cup part from below is small. Therefore, even if it is a short type, it can support stably so that a cup part may not fall forward.
[0020]
Specifically, a base cloth with a width of 2 cm or less along the lower edge of the cup part is sewn on the front side of the left and right cup parts, and the base cloth is sewn with the support cloth, or the base cloth. And the support cloth can be suitably applied to a short-type strapless brassiere formed of a continuous cloth.
As described above, when the width of the base cloth is 2 cm or less, the side-side lower line can be made substantially parallel to the lower side S2 of the isosceles triangle.
Furthermore, the present invention can be suitably applied to a short-type strapless brassiere in which the base cloth is not sewn on the front side of the left and right cup parts, and the left and right cup parts are sewn with the front center connecting cloth.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 5 show a strapless brassiere (hereinafter abbreviated as a brassiere) 10 according to a first embodiment.
The brassiere 10 is a short type with no shoulder strap, a rear center opening, and a short base.
[0022]
The brassiere 10 includes left and right cup portions 11 (11A, 11B) and a support cloth 12. The support cloth 12 extends from the side line line (a) of the left and right cup parts 11 to the side line part (b) to the side part 13 and from the side line line (b) to the back side. And a base portion 15 sewn from the lower peripheral edge to the front peripheral edge of the left and right cup portions 11.
In the present embodiment, the support cloth 12 including the side part 13, the back part 14, and the base part 15 is formed continuously from one piece of cloth.
[0023]
The upper end line (c) of the side portion 13 is steeply inclined downward from the side end point D of the cup portion to the vicinity of the side line (b).
Further, the back surface portion 14 extending from the vicinity of the side line (b) to the back surface has a narrow width W, which is 37 mm in this embodiment.
[0024]
The upper end line (c) of the side portion 13 is determined from a mechanical viewpoint based on the following correlation between the length L1 and the width W of the back portion 14 and the position of the side upper end point D of the cup portion 11. ing.
That is, a half point of a straight line L1 connecting a point A where the width direction center line P of the back surface part 14 is in contact with the cup part 11 and a B point at the tip of the back surface part 14 located substantially at the center of the back surface is defined as a C point. A straight line S1 connecting the point C and the side upper end point D of the cup portion 11 is defined.
From the point C, an isosceles triangle having the point C-D-E as the apex is drawn with the point E where the straight line S2 having the same dimension as the straight line S1 hits the lower side of the cup part 11 is drawn.
The perpendicular L2 is dropped from the vertex C to the straight line S3 between D and E, and the angle θ at which the extended line of the perpendicular L2 intersects the straight line L1 is set to be in the range of 14 ° <θ <21 °. The side upper end line (c) is steeply inclined downward along the straight line S1.
In the present embodiment, θ = 18.5 °.
[0025]
Specifically, the side upper end line (c) is substantially coincident with the straight line S1 from the D point to the C point to about 1/2, and is smoothly curved to the upper end line 14a of the back surface portion 14. Further, the lower end line (d) of the side portion 13 is set along the straight line S2 and is smoothly curved to the lower end line 14b of the back surface portion 14.
[0026]
The left and right back portions 14 are sewn with a retaining cloth 21 having a hook 20 attached to the tip B, and the left and right hooks 20 are engaged with each other to open and close.
Moreover, the cup lower part 15a of the base part 15 sewn on the lower peripheral edge of the cup part 11 continuously to the side part 13 has a length of about 2 cm. A connecting portion 15b is provided between the left and right cup lower portions 15a. The connecting portions 15b are sewn to the front peripheral edges of the left and right cup portions 11A and 11B.
[0027]
The size, material, switching type, and the like of the cup part 11 are variously changed, and the side upper end point D of the cup part 11 also changes. Moreover, it can be applied regardless of whether or not a wire is attached along the periphery of the cup portion 11.
[0028]
In the brassiere 10 having the above-described configuration, the upper end line (c) of the side portion 13 of the support cloth 12 is abruptly lowered from the side side upper end point D. Compared to the conventional strapless brassiere shown in FIG. The region indicated by the cross diagonal lines in FIG. Further, the lower end line (d) of the side portion 13 is also inclined upward as compared with the prior art, and the region indicated by the cross diagonal line in the figure is cut.
Further, the width of the back surface portion 14 is also narrowed by cutting the upper and lower sides.
[0029]
Even if the upper end line (c) of the side portion 13 is suddenly lowered and the width W of the back surface portion 14 is narrowed, the cup portion 11 does not tilt forward and is stably held in a state of being in close contact with the bust as described below. Depending on the reason.
[0030]
The center line P in the width direction of the back surface part 14 becomes a reference line for the force for pulling the cup part 11 to the back side, and when the force for pulling the cup part 11 is concentrated on this reference line, the pulling force to the back side for the cup part 11 is applied. It can work most effectively.
Since the side part 13 extends in a substantially triangular shape from the C point of the center position (substantially side line line position) of the length P of the reference line to the side upper end point D and the lower end point E of the cup part 11, C side A straight line S1 connecting the point and the side upper end point D is a line that draws the side upper end point most strongly on the back side. Therefore, if the side upper end line (c) is along the straight line S1, it is possible to generate a force to bring the side upper end point D into close contact with the bust without tilting forward.
[0031]
Similarly, the straight line S2 connecting the point C and the side lower end point E is the line that draws the side lower end point most strongly on the back side. Therefore, if the side-side lower end line (d) is set along the straight line S2, a force for attracting the side-side lower end beyond the side line to the back side can be generated.
[0032]
In this way, even if the upper part of the side line part is cut compared to the conventional case, the cup part is not pulled up by the shoulder strap, and further, it is not supported by the base part that is longer than the lower part of the cup part, By effectively applying a force that pulls the cup part to the back side with the support cloth while reducing the area of the support cloth 12, the cup part 11 can be brought into close contact with the bust without causing forward tilt.
[0033]
Further, since the area of the support cloth 12 is reduced, and in particular, the side upper end line (c) is rapidly lowered, the side part 12 can be prevented from protruding outside and exposed to the outside, and the back part. Since the width of 13 can also be narrowed, it is possible to prevent the back from being exposed beyond the outer where the back is greatly exposed.
Furthermore, even when a top with a short length is worn, since the base portion 15 is shortened, it is possible to prevent the base portion 15 from being exposed to the outside.
[0034]
And since the side part 13 which presses down the armpit vicinity becomes small, it can respond to a motion of a human body, especially a behavior of an arm, without producing a feeling of cramping and a feeling of pressure.
[0035]
FIG. 6 shows a first modification, in which the support cloth 12 ′ is formed of a base cloth part 15 ′ and a side part 13 ′ with a single cloth, and a back part 14 made of a separate cloth on a side line where a point C exists. 'I'm sewn. Further, a narrow resin core material 30 is sealed and attached to the side portion 13 ′.
Since other configurations are the same as those of the first embodiment, description thereof is omitted.
Thus, even if the support cloth 12 ′ is divided and sewn, the force pulled to the back side acts in the same manner as in the above embodiment, so that the cup portion 11 can be stably held.
Furthermore, since the resin core member 30 is attached to the side, the side can be firmly pressed, the side flow of the bust can be suppressed, and the side can be cleaned.
It should be noted that the stretch-preventing portion is formed by sewing a resin core material or a material that does not stretch at all over the entire area between the sewn line between the side portion and the back portion and the sewn line with the cup portion. It is good.
In addition, the warp knitted fabric knitted by switching the power is used as the material of the side part, the power of the upper part of the side part is made stronger than the lower part, and the cup part is firmly attached to the bust with the material of the side part. Anyway.
[0036]
FIG. 7 shows a second modification in which the left and right support cloths 12 ″ have no base part and are formed of only one side cloth part 13 ″ and a back surface part 14 ″ and are made of a single elastic cloth.
A base cloth is not attached to the peripheral edge of the lower end of the cup part 11, and the front peripheral edges of the left and right cup parts 11 </ b> A and 11 </ b> B are connected via a central connecting cloth 17. Since other configurations are the same as those of the first embodiment, description thereof is omitted.
[0037]
As described above, since the force for pulling the cup part to the back side is effectively applied by the side part 13 ″ and the back part 14 ″ without providing the base part, the cup part 11 is brought into close contact with the bust. Stable support is possible without falling forward in the state.
[0038]
FIG. 8 shows a second embodiment, which is a front-opening type, and is composed of a strapless brassiere without a base part.
In the brassiere 20, the support cloth 21 is formed by forming a side elastic part 22 on both sides and a central back part 23 from a single elastic cloth, and the side part 22 is formed on the side line of the cup part 11 (11A, 11B). It is the same in that the end of the upper end line (c) of the side portion 22 is connected to the side upper end point D and is rapidly lowered so as to continue to the upper end line 23a of the back surface portion 23.
[0039]
Since the upper end line (c) and the lower end line (d) of the side portion 22 are set with the same dimensions as those in the first embodiment, description thereof is omitted.
At that time, since the back surface portion 23 is not separated at the center of the back surface, the back surface center point (that is, 1/2 position of the back surface portion 23) is set as the B point.
[0040]
As described above, the base connecting cloth 24 (24A, 24B) having the hooks 25 attached to the front edge portions of the left and right cup parts 11 is sewn to the lower peripheral edge of the cup part 11 as described above. .
[0041]
Also in this front opening type, the cup part 11 is stably supported in a state in which the cup part 11 is in close contact with the bust by the pulling force on the back side by the support cloth 21 sewn on the side.
[0042]
【The invention's effect】
As is clear from the above description, in the strapless brassiere of the present invention, the area of the support cloth that supports the cup portion is minimized, and even if the upper end line of the side portion is lowered rapidly, the upper end line is reduced. Since the pulling force to the back side is aligned with the line that works most effectively, the cup portion can be brought into close contact with the bust and stably held without falling forward.
[0043]
And since the lower end line of the side part also matches the line where the pulling force by turning to the back side works most effectively, the cup part and the side part can be supported without misalignment, causing no collapse, You can keep your bust in a beautiful silhouette.
[0044]
Thus, since the area of the support cloth is made small, it can prevent that it protrudes from an outer and is exposed outside. And since the area of a side part is small, there is no feeling of pressure and cramping, and it has the advantage also excellent in behavior followability.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a wearing state of a strapless brassiere according to a first embodiment of the present invention.
FIG. 2 is a front view of the strapless bra.
FIG. 3 is an enlarged view of a main part of the support cloth.
FIG. 4 is an explanatory view showing a design method of a support cloth.
FIG. 5 is a view showing comparison with a conventional example.
FIG. 6 is a front view showing a first modification of the first embodiment.
FIG. 7 is a front view showing a second modification of the first embodiment.
FIG. 8 is a front view of a second embodiment.
FIG. 9 is a diagram showing a conventional example.
FIG. 10 is a view showing another conventional example.
FIG. 11 is a view showing another conventional example.
[Explanation of symbols]
10 Strapless brassiere 11 (11A, 11B) Cup part 12 Support cloth 13 Side part 14 Back part 15 Base part 17 Central connecting cloth
(a) Side line of cup
(b) Side line
(c) Side upper edge line
(d) Side side lower end line W Rear side width D Side side upper end point of cup part,
E Side-side lower end point P of the cup part Center line C in the width direction of the back part 1/2 point in the length direction of the back part

Claims (9)

The support cloth that is sewn to the left and right cups and extends from the side to the back side has the upper end line steeply inclined downward from the side upper end point to the vicinity of the side line and from the side line to the back side. The back part extending to
A half point of a straight line L1 connecting a point A where the center line in the width direction of the back side of the support cloth contacts the cup part and a point B located in the center of the back side of the support cloth is defined as a C point, and the C point and the cup A straight line S1 connecting the upper side point D of the cup side, and an isosceles triangle C- with the C point as the apex, where the straight line S2 having the same dimensions as the straight line S1 hits the lower side of the cup part from the C point. draw a E-D, set as an extension of the perpendicular line L2 which beat the apex point C to a straight line S3 of the inter-D-E is the angle theta 1 4 ° <theta <21 DEG which intersects with the straight line L1 The strapless brassiere is characterized in that the side upper end line is steeply inclined downward along the straight line S1 and the side lower end line is set along the straight line S2. . The strapless brassiere according to claim 1, wherein the side-side upper end line substantially coincides with the straight line S <b> 1 up to about ½ from the D point to the C point. The strapless brassiere according to claim 1 or 2, wherein a width W of the back surface portion of the support cloth is set in a range of 10 mm to 40 mm. The bra is a rear center opening / closing type, and the support cloth sewn to the left and right cups is locked by a fastener at the center of the back,
The strapless brassiere according to any one of claims 1 to 3, wherein the rear center position B is a rear side tip position of left and right support cloths to which the fastener is attached. The brassiere is a front center opening and closing type, and the back part of the support cloth is one in which both ends are continuous to the left and right side parts,
The strapless brassiere according to any one of claims 1 to 3, wherein the rear center position B is approximately a half position in a length direction of the rear portion. The brassiere according to any one of claims 1 to 5, wherein the support cloth is formed of a single cloth on the side and back sides. The brassiere according to any one of claims 1 to 5, wherein the support cloth is formed by separately forming a side part and a back part with separate stretchable cloths and sewing them together. A base cloth having a width of 2 cm or less along the lower edge of the cup part is sewn on the front side of the left and right cup parts, and the base cloth is sewn with the support cloth or the base cloth and the support cloth. The strapless brassiere according to any one of claims 1 to 7, wherein the strapless brassiere is formed of a continuous cloth. The strapless brassiere according to any one of claims 1 to 7, wherein a base cloth is not sewn on the front side of the left and right cup parts, and the left and right cup parts are sewn with a front center connecting cloth. .

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