Summary of the invention
The problem that invention will solve
But, in the such slide fastener of patent documentation 1, length direction at strap, the width of the chain tooth of slide fastener forms wider than the width of the chain tooth of metal-made slide fastener in the past, therefore, exist the flexibility of the chain band that resinous chain tooth is installed than the poor problem of flexibility that the chain band of metal chain tooth is installed.
The present invention makes in order to solve problem as described above, its object is to provide chain tooth and the slide fastener with this chain tooth for a kind of slide fastener, this slide fastener can improve the flexibility of the chain band that this chain tooth is installed with chain tooth, and can realize the lightweight of chain tooth.
For solving the means of problem
The slide fastener of the solution of the present invention 1 chain tooth, for thering is the slide fastener of a pair of chain band, this chain tooth is arranged on the edge of this strap with the length direction of the strap along described chain band by certain spaced mode, it is characterized in that, on the upper surface and at least one party in lower surface of this chain tooth, in the vertical direction of the length direction with described strap, be formed with at least one groove.
According to such scheme 1, on upper surface and at least one party in lower surface at chain tooth, in the vertical direction of the length direction with strap, be formed with at least one groove, thereby increased the crooked free degree of chain tooth, therefore the flexibility of the chain band that this chain tooth is installed can be improved, and the lightweight of chain tooth can be realized.
Scheme 2 is on the basis of scheme 1, it is characterized in that, described chain tooth be take described strap and as border, is comprised the first of the upper surface side that is positioned at described strap, with the second portion that is positioned at the lower face side of described strap, on described second portion, be formed with head, this head when described a pair of chain band engaging with the engaging of the head of chain tooth in opposite directions, described groove is formed in described first.
According to such scheme 2, because groove is formed in first, so can realize the lightweight of chain tooth when raising is provided with the flexibility of chain band of this chain tooth.
Scheme 3 is on the basis of scheme 2, it is characterized in that, described groove is one, its central portion and bottom that is formed on the left and right directions of described first arrives described strap, described first is divided into the first cutting part and the second cutting part equably, the identical vertical height starting on the surface from described strap, length direction along described strap, the width dimensions of described groove is identical with the size of space between adjacent two chain teeth, when described a pair of chain band engaging, described the first cutting part and described the second cutting part align with the first cutting part or the second cutting part in chain tooth in opposite directions respectively.
According to such scheme 3, due to when a pair of chain band engages, the first cutting part and the second cutting part align with the first cutting part or the second cutting part in chain tooth in opposite directions respectively, so the first cutting part and the second cutting part respectively with chain tooth in opposite directions in the first cutting part or the second cutting part in the direction of the length direction perpendicular to strap, locate point-blank, therefore, can improve the flexibility of the chain band that this chain tooth is installed.
On the basis of any one of scheme 4 in scheme 1 to 3, it is characterized in that, when observing from the vertical direction of length direction described and strap, the shape of cross section of described groove form essentially rectangular, groove opening width along with away from strap, become gradually large roughly V font or near the base of strap one side than away from the short roughly trapezoidal shape in the base of strap one side.
According to such scheme 4, due to the shape of cross section of groove in the form of a substantially rectangular, roughly V-shape or inverted trapezoidal shape roughly, so can further improve the flexibility of the chain band that this chain tooth is installed.
Scheme 5, on the basis of scheme 3, is characterized in that, when observing from the vertical direction of length direction described and strap, the shape of cross section of described the first cutting part and described the second cutting part forms respectively identical isosceles-trapezium-shaped.
According to such scheme 5, while observing due to the vertical direction of the length direction from strap, the shape of cross section of the first cutting part and the second cutting part forms respectively identical isosceles-trapezium-shaped, so can further improve the flexibility of the chain band that this chain tooth is installed.
Scheme 6, on the basis of scheme 1 or 2, is characterized in that, the bottom of described groove does not arrive described strap.
According to such scheme 6, because the bottom of groove does not arrive strap, so can improve the flexibility of the chain band that this chain tooth is installed.
In addition, the present invention also provides a kind of slide fastener, and this slide fastener has above-mentioned slide fastener chain tooth.
According to slide fastener of the present invention, can improve the flexibility of the chain band that this chain tooth is installed, and can realize the lightweight of chain tooth.
Accompanying drawing explanation
Fig. 1 is the front view of chain tooth for the slide fastener of the first embodiment of the present invention.
Fig. 2 is the top view of chain tooth for the slide fastener of the first embodiment of the present invention.
Fig. 3 is the left side view of chain tooth for the slide fastener of the first embodiment of the present invention.
Fig. 4 is the upward view of chain tooth for the slide fastener of the first embodiment of the present invention.
Fig. 5 is for representing to be provided with the partial elevation view of chain band of the chain tooth of the first embodiment of the present invention.
Fig. 6 is for representing to be provided with the partial perspective view of fastening state of slide fastener of the chain tooth of the first embodiment of the present invention.
Fig. 7 is the front view of chain tooth for the slide fastener of the second embodiment of the present invention.
Fig. 8 is the upward view of chain tooth for the slide fastener of the second embodiment of the present invention.
Fig. 9 is the front view of chain tooth for the slide fastener of the 3rd embodiment of the present invention.
Figure 10 is the front view of chain tooth for the slide fastener of the 4th embodiment of the present invention.
Figure 11 is the top view of chain tooth for the slide fastener of the 4th embodiment of the present invention.
Figure 12 is the front view of chain tooth for the slide fastener of the 5th embodiment of the present invention.
Figure 13 is the top view of chain tooth for the slide fastener of the 5th embodiment of the present invention.
Figure 14 is for representing the figure of variation of the shape of cross section of groove, (a) represents that the width of opening of groove, along with become gradually the shape of cross section of large roughly V font away from strap, (b) represents the shape of cross section of essentially rectangular.
Symbol description:
A slide fastener
1 slide fastener chain tooth
11 firsts
The upper surface of 11a first
The first cutting part of 111, 113 firsts
The second cutting part of 112, 114 firsts
The 3rd cutting part of 115 firsts
12 second portions
12a body
12b neck
12c head
121, the first cutting part of 123 second portions
122, the second cutting part of 124 second portions
14,15,16,17,18 grooves
2 chain bands
21 straps
22 edges
The size of space between adjacent two the chain teeth of W
The width dimensions of W1, W2 groove
The vertical height that H starts from the upper surface of strap
Opening in the roughly V font cross section of a groove
The specific embodiment
Below, with reference to the accompanying drawings the preferred embodiment of the present invention is described.
In the following description, the length direction of strap refers to the direction longitudinally along strap; The direction vertical with the length direction of strap refers to the direction vertical with the length direction of strap in the plane at the surperficial place of strap and the plane parallel with the surface of strap; Above-below direction refers to the direction vertical with the plane at the surperficial place of strap; Left and right directions refer to take the body side of second portion of chain tooth be in front of the left and right directions (, the left and right directions in Fig. 2) of the upper surface side of the Ce Cong first first while observing; Chain tooth in opposite directions refers in the direction that the length direction with strap in another chain band is vertical and this chain tooth chain tooth in opposite directions.
The first embodiment
Fig. 1~Fig. 6 is for representing the figure of chain tooth for the slide fastener of the first embodiment of the present invention.Fig. 1 is the front view of chain tooth for the slide fastener of the first embodiment of the present invention, Fig. 2 is the top view of chain tooth for the slide fastener of the first embodiment of the present invention, Fig. 3 is the left side view of chain tooth for the slide fastener of the first embodiment of the present invention, Fig. 4 is the upward view of chain tooth for the slide fastener of the first embodiment of the present invention, Fig. 5 is for representing to be provided with the partial elevation view of chain band of the chain tooth of the first embodiment of the present invention, and Fig. 6 is for representing to be provided with the partial perspective view of fastening state of slide fastener of the chain tooth of the first embodiment of the present invention.
As shown in Figure 6, slide fastener A has a pair of chain band 2,2, on each chain band 2, with the length direction along strap 21, by the evenly distributed mode in certain interval, chain tooth (hereinafter referred to as chain tooth) 1 for slide fastener is installed on the edge 22 of strap 21.
As shown in Figure 1 to 4, on above-below direction, chain tooth 1 be take strap 21 and as border, is comprised the first 11 of the upper surface side that is positioned at strap 21, and is positioned at the second portion 12 of the lower face side of strap 21.
First 11 has smooth upper surface 11a, and this upper surface 11a is parallel with respect to the upper surface of strap 21, and on above-below direction with the upper surface 11a of the first 11 of adjacent chain tooth 1 in identical horizontal plane.When not forming following groove 14, first's 11 integral body form roughly tetragonous cone table shape, and four ribs of the sidepiece of this tetragonous cone table have carried out chamfering, but be not limited to this, first's 11 integral body also can form roughly cuboid, the shape such as cube roughly, and its four ribs also can not carry out chamfering.
Second portion 12 comprises body 12a, head 12c, neck 12b.Body 12aYu first 11 clamps strap 21 to chain tooth 1 is fixed on strap 21 on above-below direction.Head 12c is with in the vertical direction of the length direction with strap 21, via neck 12b, from body 12a to the side-prominent mode of chain tooth 1 in opposite directions, form, a pair of chain band 2,2 mutually during engaging head 12c mutually engage with the head 12c of chain tooth 1 in opposite directions.And, especially, it should be noted that, in the vertical direction of the length direction with strap 21, head 12cYe Bi first 11 is more side-prominent to chain tooth 1 in opposite directions.Neck 12b is arranged between body 12a and head 12c, has the shape of the middle constriction that is hourglass shape, thereby in the vertical direction of the length direction with strap 21, the width of neck 12b is narrower than the width of body 12a and head 12c.Thus, on the length direction of strap 21, at the neck 12b of the second portion 12 of adjacent chain tooth, can be formed for each other accommodating the space of head 12c of the second portion 12 of chain tooth 1 in opposite directions.
At the upper surface of chain tooth 1 (, upper surface 11a in first) on, central portion at the left and right directions of first 11, the direction vertical along the length direction with strap 21 is formed with a groove 14 to connect the mode of first 11, the bottom of this groove 14 arrives strap 21,Jiang first 11 and is divided into equably the first cutting part 111 and the second cutting part 112.
As shown in Figure 5, the width dimensions W1 on the length direction of strap 21 of groove 14 is arranged to: the identical vertical height H starting at the upper surface from strap 21, identical with the size of space W between two chain teeth 1 adjacent on length direction at strap 21, this height H is for to start till the arbitrary height in the vertical distance range of the upper surface of first from the upper surface of strap 21.Although in the present embodiment, the situation that is formed with groove 14 on the upper surface of chain tooth 1 of take has illustrated the relation of width dimensions W1 and the size of space W between adjacent two chain teeth of groove 14 as example, but as following embodiment, on the lower surface of chain tooth, forming the occasion of groove, the relation of the size of space between the width dimensions of this groove and adjacent two chain teeth is also applicable, now, " the identical vertical height starting from the surface of strap " refers to from the lower surface of strap and starts identical vertical height downward.
When the vertical direction of the length direction from strap 21 is observed, the shape of cross section of the first cutting part 111 and the second cutting part 112 forms respectively identical isosceles-trapezium-shaped, the shape of cross section of groove 14 is the base ratio of close strap 21 1 sides away from the short roughly trapezoidal shape in the base of strap 21 1 sides, but be not limited to this, the shape of cross section of the first cutting part 111 and the second cutting part 112 also can form other the shape beyond isosceles trapezoid, the shape of cross section of groove 14 also can form roughly V glyph shape such shown in Figure 14 (a), at this roughly in V font cross section, the width of the opening a of groove is along with become gradually large away from strap, the shape of cross section of groove 14 can also form essentially rectangular such shown in Figure 14 (b) or near the base of strap one side than roughly other shape such as trapezoidal of the bottom side length away from strap one side.
In the present embodiment, by setting head 12c from the outstanding position of the body 12a of second portion 12, for example make head 12c outstanding from the left and right directions central portion of the body 12a of second portion 12, as shown in Figure 6, at a pair of chain band 2, during 2 engaging, can make the first cutting part 111 align with the first cutting part 111 in chain tooth 1 in opposite directions, the second cutting part 112 is alignd with the second cutting part 112 in chain tooth in opposite directions, , can make the first cutting part 111 in the first cutting part 111 and chain tooth 1 in opposite directions, and second cutting part 112 locate point-blank respectively with the second cutting part 112 in chain tooth in opposite directions.But be not limited to this, also can be by setting head 12c from the outstanding position of the body 12a of second portion 12, for example make head 12c outstanding from the position of departing from left and right directions central portion of the body 12a of second portion 12, at a pair of chain band 2, during 2 engaging, the first cutting part 111 is alignd with the second cutting part 112 in chain tooth 1 in opposite directions, the second cutting part 112 is alignd with the first cutting part 111 in chain tooth in opposite directions, , make the second cutting part 112 in the first cutting part 111 and chain tooth 1 in opposite directions, and second cutting part 112 locate point-blank respectively with the first cutting part 111 in chain tooth in opposite directions.
In the present embodiment, although be only formed with a groove 14 in first, as following the 5th embodiment, also can in first, form plural groove.
In addition, in the present embodiment, although define the relation of width dimensions W1 and the interval W between adjacent two chain teeth 1 of groove 14, also can not follow this relation and the width of groove 14 is formed to other size.
The second embodiment
Fig. 7~Fig. 8 is for representing the figure of chain tooth for the slide fastener of the second embodiment of the present invention.Fig. 7 is the front view of chain tooth for the slide fastener of the second embodiment of the present invention, and Fig. 8 is the upward view of chain tooth for the slide fastener of the second embodiment of the present invention.In description of the present embodiment, for the part identical or suitable with the first embodiment, mark identical symbol, and omit the explanation of this part.
As shown in Figure 7 and Figure 8, compare with the first embodiment, in this second embodiment, replacement forms groove 14 at the central portion of the left and right directions of first 11, on the lower surface of chain tooth, at the central portion of the left and right directions of second portion 12, the direction vertical at the length direction with strap 21 is formed with a groove 15 to connect the mode of second portion 12, the bottom of this groove 15 arrives strap 21, and second portion 12 is divided into the first cutting part 121 and the second cutting part 122 equably.When the vertical direction of the length direction from strap 21 is observed, the shape of cross section of groove 15 is the base ratio of close strap 21 1 sides away from the short roughly trapezoidal shape in the base of strap 21 1 sides, but be not limited to this, the shape of cross section of groove 15 also can form roughly V glyph shape such shown in Figure 14 (a), at this roughly in V font cross section, the width of the opening a of groove is along with become gradually large away from strap, the shape of cross section of groove 15 can also form essentially rectangular such shown in Figure 14 (b) or near the base of strap one side than roughly other shape such as trapezoidal of the bottom side length away from strap one side.
In the present embodiment, although be only formed with a groove on second portion, also can on this second portion, form plural groove.
The 3rd embodiment
Fig. 9 is the front view of chain tooth for the slide fastener of the 3rd embodiment of the present invention.In description of the present embodiment, for the part identical or suitable with the first embodiment, mark identical symbol, and omit the explanation of this part.
As shown in Figure 9, compare with the first embodiment, in this 3rd embodiment, except the central portion of the left and right directions in first 11 is formed with a groove 14, on the lower surface of chain tooth, at the central portion of the left and right directions of second portion 12, the direction vertical at the length direction with strap 21 is also formed with another groove 16 to connect the mode of second portion 12, the bottom of this groove 16 arrives strap 21, and second portion 12 is divided into the first cutting part 123 and the second cutting part 124 equably.When the vertical direction of the length direction from strap 21 is observed, the shape of cross section of groove 16 is the base ratio of close strap 21 1 sides away from the short roughly trapezoidal shape in the base of strap 21 1 sides, but be not limited to this, the shape of cross section of groove 16 also can form roughly V glyph shape such shown in Figure 14 (a), at this roughly in V font cross section, the width of the opening a of groove is along with become gradually large away from strap 21, the shape of cross section of groove 16 can also form essentially rectangular such shown in Figure 14 (b) or near the base of strap one side than roughly other shape such as trapezoidal of the bottom side length away from strap one side.
In the present embodiment, although on first and second portion, be only formed with respectively a groove, also can Gai first and second portion on form respectively plural groove.
The 4th embodiment
Figure 10~Figure 11 is for representing the figure of chain tooth for the slide fastener of the 4th embodiment of the present invention.Figure 10 is the front view of chain tooth for the slide fastener of the 4th embodiment of the present invention, and Figure 11 is the top view of chain tooth for the slide fastener of the 4th embodiment of the present invention.In description of the present embodiment, for the part identical or suitable with the first embodiment, mark identical symbol, and omit the explanation of this part.
As shown in Figure 10 and Figure 11, compare with the first embodiment, in this 4th embodiment, on the upper surface of chain tooth 1, central portion at the left and right directions of first 11, the direction vertical along the length direction with strap 21 is formed with a groove 17 to connect the mode of first 11, and the bottom of this groove 17 does not arrive strap 21.And the bottom surface of groove 17 is parallel with the upper surface of strap 21, but is not limited to this, the bottom surface of groove 17 also can form not parallel with the upper surface of strap 21.When the vertical direction of the length direction from strap 21 is observed, the shape of cross section of groove 17 is the base ratio of close strap 21 1 sides away from the short roughly trapezoidal shape in the base of strap 21 1 sides, but be not limited to this, the shape of cross section of groove 17 also can form roughly V glyph shape such shown in Figure 14 (a), at this roughly in V font cross section, the width of the opening a of groove is along with become gradually large away from strap, the shape of cross section of groove 17 can also form essentially rectangular such shown in Figure 14 (b) or near the base of strap one side than roughly other shape such as trapezoidal of the bottom side length away from strap one side.
In the present embodiment, although be only formed with a groove 17 in first, also can in Gai first, form plural same groove.
In addition, in the present embodiment, although be formed with groove in Jin first, also can on second portion, form same groove simultaneously.
The 5th embodiment
Figure 12~Figure 13 is for representing the figure of chain tooth for the slide fastener of the 5th embodiment of the present invention.Figure 12 is the front view of chain tooth for the slide fastener of the 5th embodiment of the present invention, and Figure 13 is the top view of chain tooth for the slide fastener of the 5th embodiment of the present invention.In description of the present embodiment, for the part identical or suitable with the first embodiment, mark identical symbol, and omit the explanation of this part.
As shown in Figure 12 and Figure 13, compare with the first embodiment, in this 5th embodiment, replacement is formed with a groove 14 at the central portion of the left and right directions of first 11, and on the upper surface of chain tooth 1, the direction vertical at the length direction with strap 21 is formed with two grooves 18 side by side to connect the mode of first 11,18, the bottom of this groove 18,18 arrives strap 21,Jiang first 11 and is divided into equably the first cutting part 113, the second cutting part 114 and the 3rd cutting part 115.In addition, identical with the relation of the size of space between the width dimensions of groove in embodiment 1 and adjacent two chain teeth, in the present embodiment, width dimensions W2, the W2 on the length direction of strap 21 of groove 18,18 are arranged to: the identical vertical height starting on the surface from strap 21, (in the present embodiment for from the upper surface of strap 21, start the vertical height towards top) is identical with the size of space between two chain teeth 1 adjacent length direction at strap 21.When the vertical direction of the length direction from strap 21 is observed, the first cutting part 113, the shape of cross section of the second cutting part 114 and the 3rd cutting part 115 forms respectively isosceles-trapezium-shaped, groove 18, 18 shape of cross section is the base ratio of close strap 21 1 sides away from the short roughly trapezoidal shape in the base of strap 21 1 sides, but be not limited to this, the first cutting part 113, the shape of cross section of the second cutting part 114 and the 3rd cutting part 115 also can form other the shape beyond isosceles trapezoid, groove 18, 18 shape of cross section also can form roughly V glyph shape such shown in Figure 14 (a), at this roughly in V font cross section, the width of the opening a of groove is along with become gradually large away from strap, groove 18, 18 shape of cross section can also form essentially rectangular such shown in Figure 14 (b) or near the base of strap one side than roughly other shape such as trapezoidal of the bottom side length away from strap one side.
In the present embodiment, by setting as Embodiment 1 head 12c from the outstanding position of second portion 12, at a pair of chain band 2, during 2 engaging, also can make the first cutting part 113, the second cutting part 114 and the 3rd cutting part 115 respectively with chain tooth 1 in opposite directions in the first cutting part 113, the second cutting part 114 or the 3rd cutting part 115 alignment, , can make the first cutting part 113, the second cutting part 114 and the 3rd cutting part 115 respectively with chain tooth 1 in opposite directions in the first cutting part 113, the second cutting part 114 or the 3rd cutting part 115 places are point-blank.
In above-mentioned first to fourth embodiment, although groove be all formed on first and/or the central portion of the left and right directions of second portion and by first and/or second portion cut apart equably, groove also can be formed on the upper surface of chain tooth and/or other position on lower surface, unequal cut apart first and/or second portion.
The present invention also provides a kind of slide fastener, and this slide fastener comprises the slide fastener chain tooth described in above-mentioned each embodiment.
Above, according to embodiment, describe the present invention, but the present invention is not limited to above-mentioned each embodiment, without departing from the spirit and scope of the invention, can carries out various changes and combination.The present invention includes all variation, application examples in the thought range of the present invention being defined by the claims.