CN103671414B

CN103671414B - Buckle

Info

Publication number: CN103671414B
Application number: CN201210332562.7A
Authority: CN
Inventors: 小川敦司
Original assignee: Shanghai Nifco Plastic Manufacturer Co ltd
Current assignee: Shanghai Nifco Plastic Manufacturer Co ltd
Priority date: 2012-09-10
Filing date: 2012-09-10
Publication date: 2016-08-10
Anticipated expiration: 2032-09-10
Also published as: CN103671414A

Abstract

The present invention relates to buckle, it is possible to be directed to the molding position of rib as parting line, use split metal die for moulding to simply form pin.Buckle (10) possesses eyelet (40) and pin (50).Eyelet (40) has: have the flange part (60) of peristome (61)；Foot (70)；And hollow part (71).Pin (50) has head (80) and axle portion (90).Foot (70) is provided with at least four slits (72) cutting this foot (70) along direction of insertion.Axle portion (90) arrange guiding rib (96), this guiding rib (96) is a pair, it is positioned at the diagonally opposed of this axle portion (90), highlight parallel to each other from this axle portion (90), and along this axle portion (90) direction of insertion extend, be respectively embedded in four slits (72), be positioned in diagonally opposed two slit (72).

Description

Buckle

Technical field

The present invention relates to buckle, it is possible to be directed to the molding position of rib as parting line, use split molding Pin is simply formed with metal pattern.

Background technology

In the past, the card in the two pieces (Star ピス) being made up of eyelet and pin was smashed, in the axle portion of pin Corner is formed and amounts to four guiding ribs (with reference to " corner 121 "), and suppression pin rocks (example relative to eyelet " 0023rd " section and Fig. 1～3 such as reference patent documentation 1)

Prior art literature

Patent documentation 1: Japanese Unexamined Patent Publication 2012-13165 publication

But, above-mentioned existing pin is positioned at corner due to guiding rib, therefore nothing in split common metal mould Method molding, the most as shown in figure 22, needs to use particulate metal mould of the combination die mode of slide cores etc., There is the problem that cost uprises etc in the manufacture of pin.

Summary of the invention

Therefore, each invention described in each scheme is the problem having in view of above-mentioned prior art and completes, Its object is to following aspect.

(scheme one)

The goal of the invention that scheme one is recorded is as follows.

That is, the invention that scheme one is recorded can be directed to the molding position of rib as parting line, uses split Metal die for moulding simply forms pin.

Its result, the invention recorded according to scheme one, it is possible to relatively inexpensively manufacture pin, and utilize two Guiding rib suppresses pin to insert front rocking relative to eyelet, without compromising on the insertion of pin effectively.

(scheme two)

What scheme two was recorded invents outside the purpose of the invention of such scheme one record, following purpose.

That is, the invention that scheme two is recorded forms the length in axle portion by being directed to rib from the lower surface of head In Tu, it is possible to prevent the interference at initial stage during the peristome inserting eyelet, it is possible to easily carry out centralized positioning.

(scheme three)

Outside the purpose of the invention that the invention that scheme three is recorded is recorded in such scheme one or scheme two, also just like Lower purpose.

That is, the invention that scheme three is recorded is owing to making the leading section of guiding rib tilt sideling, it is possible to prevent and eyelet Peristome etc. interfere, improve the insertion of pin.

(scheme four)

The invention that scheme four is recorded, outside the purpose of the invention of any one of such scheme one～three record, also has Following purpose.

That is, parting line can be set in suitable position by the invention that scheme four is recorded.

Respectively inventing that each scheme is recorded respectively completes to realize above-mentioned each purpose, underneath with by each The embodiment of the Based on Feature Points of invention invention in accompanying drawing illustrates.

It addition, symbol represents the symbol used in the embodiment of invention, do not limit the technology of the present invention Scope.

It addition, accompanying drawing number is also illustrated in the embodiment of invention the accompanying drawing number used, do not limit this The technical scope of invention.

(scheme one)

The inventive features that scheme one is recorded is as follows.

First, such as, as shown in Fig. 1～5, buckle 10 substantially possesses following structure.

(1) eyelet (グロメット) 40

(2) pin 50

Second, the most as figures 6 to 12 show, eyelet 40 substantially possesses following structure.

(3) flange part 60

Such as shown in Fig. 6～10 and Figure 19, the diameter of flange part 60 is bigger than the installing hole 21 of plate 20, There is peristome 61 at center.

(4) foot 70

Such as shown in Fig. 6～8 and Figure 19, foot 70 hangs down setting from flange part 60, can insert installation In hole 21.

(5) hollow part 71

The most as shown in Figure 8, hollow part 71 connects with peristome 61, arrives foot 70.

3rd, the most as shown in figure 13 to 18, pin 50 has following structure.

(6) head 80

Such as shown in Fig. 5 and Figure 13～15, the diameter of head 80 is bigger than peristome 61.

(7) axle portion 90

Such as Fig. 5, Figure 13～15, shown in Figure 19 and Figure 20, axle portion 90 hangs down setting from head 80, Inserting in hollow part 71 by peristome 61, the dorsal part at plate 20 expands the periphery of foot 70, is used for And from table back side grip block 20 between flange part 60.

4th, such as shown in Fig. 6 and Figure 10, foot 70 is arranged and cuts this foot along direction of insertion At least four slits 72 of 70.

Such as shown in Figure 13, Figure 15 and Figure 17, axle portion 90 arranges guiding rib 96, this guiding rib 96 is a pair, is positioned at the diagonally opposed of this axle portion 90, highlights parallel to each other from this axle portion 90, and Direction of insertion along this axle portion 90 extends, and is respectively embedded in four slits 72, is positioned at diagonally opposed two In slit 72.

(scheme two)

What scheme two was recorded invents outside the characteristic point of the invention of such scheme one record, following feature.

I.e., such as shown in Figure 13 and Figure 15, guiding rib 96 extends to axle portion from the lower surface of head 80 In the way of the length of 90.

(scheme three)

Outside the feature of the invention that the invention that scheme three is recorded is recorded in such scheme one or scheme two, also just like Lower feature.

I.e., such as shown in figure 21, make the leading section of guiding rib 96 along centered by the shaft core in axle portion 90 The circular arc of imaginary circle tilt sideling.

(scheme four)

The invention that scheme four is recorded is outside the characteristic point of the invention of any one of such scheme one～three record, also There is following feature.

I.e., such as shown in figure 22, be directed to rib 96 thickness direction end face as parting line (P.L.1a, P.L.2a), by split metal die for moulding shaping pin 50.

The effect of the present invention is as follows.

Owing to the present invention is constituted as above, thereby serve to following described effect.

(scheme one)

The invention recorded according to scheme one, plays following effect.

That is, the invention recorded according to scheme one, it is possible to be directed to the molding position of rib as parting line, use Split metal die for moulding simply forms pin.

(scheme two)

The invention recorded according to scheme two, outside the effect of the invention of such scheme one record, plays as follows Effect.

That is, the invention recorded according to scheme two, forms axle portion owing to being directed to rib from the lower surface of head In the way of length, it is possible to prevent the interference at initial stage during the peristome inserting eyelet, it is possible in easily carrying out The heart positions.

(scheme three)

The invention recorded according to scheme three, outside the effect of such scheme one or the invention of scheme two record, Play following effect.

That is, the invention recorded according to scheme three, owing to making the leading section of guiding rib tilt sideling, it is possible to prevent Peristomes with eyelet etc. are interfered, and improve the insertion of pin.

(scheme four)

The invention recorded according to scheme four, outside the effect of the invention of any one of such scheme one～three record, Play following effect.

That is, the invention recorded according to scheme four, it is possible to parting line is set in suitable position.

Accompanying drawing explanation

Fig. 1 is the upward view of pin.

Fig. 2 is the front view of the buckle of the state being temporarily fixed on eyelet by pin.

Fig. 3 is the side view of Fig. 2.

Fig. 4 is the upward view of Fig. 2.

Fig. 5 is the sectional view of the line B-B along Fig. 3.

Fig. 6 is the axonometric chart observing eyelet from side.

Fig. 7 is the axonometric chart of eyelet viewed from above.

Fig. 8 is the side view of the half of cutting eyelet.

Fig. 9 is the top view of eyelet.

Figure 10 is the upward view of eyelet.

Figure 11 is the D portion enlarged drawing of Figure 10.

Figure 12 is the enlarged partial sectional view of the line B-B along Figure 10.

Figure 13 is the axonometric chart of pin.

Figure 14 is the side view of the half of cutting pin.

Figure 15 is the front view of pin.

Figure 16 is the sectional view of the line A-A along Fig. 1.

Figure 17 is the sectional view of the E-E line along Figure 14.

Figure 18 is the F portion enlarged drawing of Figure 14.

Figure 19 is the sectional view installing midway of buckle.

Figure 20 is the sectional view of the installment state of buckle.

Figure 21 is the explanatory diagram of the shape being correspondingly used for explanation slide protrusion with Figure 17.

Figure 22 is the explanatory diagram of the forming method being correspondingly used for explanation pin with Figure 17.

Figure 23 is the explanatory diagram of the forming method of the comparative example for Figure 22 is described.

In figure:

10 buckles, 20 plates, 21 installing holes, 30 parts, 31 intercommunicating pores, 40 eyelets, 50 Pin, 60 flange parts, 61 peristomes, 62 slide protrusion, 70 foots, 71 hollow parts, 72 Slit, 73 cutting plates, 73a connecting portion (convex), 74 front end teats, 80 heads, 90 Axle portion, 91 middle shaft parts, 92 side band parts, 93 embeded slots, 94 push-pads, 95 sliding trays, The interim fixed part of 95a, 95b pars intermedia, the formal fixed part of 95c, 96 guiding ribs.

Detailed description of the invention

In Fig. 1～5,10 represent buckle, as shown in FIG. 19 and 20, it is possible to by parts 30 with weight It is stacked under the state on plate 20 and is fixed.

As shown in figure 19, plate 20 is provided with the circular installing hole 21 at up/down perforation.It addition, It also is provided with on parts 30 at up/down perforation and the circular intercommunicating pore 31 that connects with installing hole 21.

It addition, plate 20 and parts 30 are formed as tabular, but being not limited to this, plate can be made as long as having 20 or at least some of plate portion overlapped of parts 30 be sufficient for.It addition, by installing hole 21 and company Through hole 31 is formed as circular, but is not limited to this, as long as the eyelet described later 40 of buckle 10 can be inserted Foot 70.

As shown in Fig. 1～5, buckle 10 substantially possesses with lower component.

It addition, following (1) and (2) will be described later.

(1) eyelet 40

(2) pin 50

It addition, the parts of buckle 10 are not limited to above-mentioned (1) and (2), such as can possess seal member Deng miscellaneous part.

(eyelet 40)

As shown in FIG. 19 and 20, eyelet 40 is inserting the installing hole 21 that mated and intercommunicating pore 31 Pin 50 described later is inserted and enlarged diameter under state, and the plate 20 that overlaps from the clamping of the table back side and parts 30, Plate 20 and parts 30 can be fixed as coincidence status.

Eyelet 40 is by having suitable elasticity and the thermoplastic synthetic resin of rigidity, such as polyformaldehyde (POM) Etc. one-body molded.It addition, as thermoplastic synthetic resin, illustrate polyformaldehyde, but be not limited to this.

As figures 6 to 12 show, eyelet 40 substantially possesses following portion.

It addition, following (1) and (2) be will be described later.

(1) flange part 60

(2) foot 70

It addition, the parts of eyelet 40 are not limited to above-mentioned (1) and (2).

(pin 50)

As shown in Fig. 1～5, Figure 19 and Figure 20, insert eyelet 40 by pin 50, eyelet 40 can be expanded The diameter of foot described later 70.

Will be described in detail after pin 50, by having suitable elasticity and the thermoplastic synthetic resin of rigidity, example As one-body molded in polyformaldehyde (POM) etc..It addition, as thermoplastic synthetic resin, illustrate polyformaldehyde, But it is not limited to this.

As shown in figure 13 to 18, pin 50 has following portion.

It addition, following (1) and (2) will be described later.

(1) head 80

(2) axle portion 90

It addition, the parts of pin 50 are not limited to above-mentioned (1) and (2).

(flange part 60)

As shown in Fig. 6～10 and Figure 19, the diameter of flange part 60 is bigger than the installing hole 21 of plate 20, in The heart has peristome 61.

Flange part 60 is formed as circular cast.

As shown in Fig. 6～10, flange part 60 has following portion.

It addition, each portion of flange part 60 is not limited to following (1) and (2).

(1) peristome 61

As shown in Fig. 6～10, peristome 61 is positioned at the center of flange part 60, in the thickness direction thereof with circle Shape is through.

It addition, peristome 61 to be formed as such as circular, but it is not limited to this.

(2) slide protrusion 62

As shown in Fig. 6, Fig. 7 and Fig. 9～12, slide protrusion 62 from the inner circumferential of peristome 61 towards center Protrude to radiation multiple, such as, protrude four altogether with 90 degree of intervals.

The cross section of slide protrusion 62 is formed as English capitalization "U" shaped.

Sliding tray described later 95 (with reference to Figure 13～the 16) sliding contact of slide protrusion 62 and pin 50.

It addition, as the number of slide protrusion 62, illustrate four, but be not limited to this, it is also possible to Be formed as odd number, two, three or more than five.It addition, as the shape of slide protrusion 62, example Cross section "U" shaped, but it is not limited to this.

(foot 70)

As shown in Fig. 6～10 and Figure 19, foot 70 hangs down setting from flange part 60, can insert installing hole In 21.

As shown in Fig. 6～8 and Figure 10, foot 70 has following portion.

It addition, following (1)～(4) be will be described later.

(1) hollow part 71

(2) slit 72

(3) cutting plate 73

(4) front end protrusion 74

It addition, each portion of foot 70 is not limited to above-mentioned (1)～(4).

(head 80)

As shown in Fig. 5 and Figure 13～16, the diameter of head 80 is bigger than peristome 61.

Head 80 is formed as disc.

It addition, as the shape of head 80, illustrate disc, but be not limited to this.

(axle portion 90)

As Fig. 5, Figure 13～17, shown in Figure 19 and Figure 20, axle portion 90 hangs down setting from head 80, logical Crossing peristome 61 and insert in hollow part 71, the dorsal part at plate 20 makes the periphery of foot 70 expand, and is used for And from table back side grip block 20 between flange part 60.

As shown in Figure 13～17, axle portion 90 has following portion.

It addition, following (1)～(6) be will be described later.

(1) middle shaft part 91

(2) side band part 92

(3) embeded slot 93

(4) push-pads 94

(5) sliding tray 95

(6) guiding rib 96

It addition, each portion in axle portion 90 is not limited to above-mentioned (1)～(6).

(hollow part 71)

As shown in Figure 8, hollow part 71 connects with peristome 61, arrives foot 70.

Its upper surface of hollow part 71 connects with peristome 61, is set as by the external diameter of the surrounding of hollow part 71 Roughly equal with the internal diameter of peristome 61, lower surface opens wide at the end face of foot 70.

(slit 72)

As shown in Fig. 6～10, slit 72 cuts foot 70 along direction of insertion, arranges to radiation a plurality of, example As arranged four altogether with 90 degree of intervals.

As shown in Figure 10, slit 72 is positioned at the underface from the prominent slide protrusion 62 of peristome 61.

It addition, as the bar number of slit 72, illustrate four, but be not limited to this, at least have four Bar is sufficient for, it is also possible to arrange more than five.

(cutting plate 73)

As shown in Fig. 6～10, cutting plate 73 is positioned at the interval of adjacent slit 72, be provided with multiple such as With slit 72 same number four altogether.

It addition, as the number of cutting plate 73, illustrate four, but be not limited to this, with slit 72 Identical, at least there are four and be sufficient for, more than five can be arranged.

Its upper end of cutting plate 73 is connected by the inner edge portion of connecting portion 73a with the peristome 61 of flange part 60 Connecing, bottom becomes free end.

As shown in Fig. 6, Fig. 7 and Fig. 9, connecting portion 73a from the inner circumferential of peristome 61 towards central convex Highlight.As it is shown in figure 9, when observing from peristome 61 side, connecting portion 73a with from this peristome 61 Prominent slide protrusion 62 is arranged differently than with such as 45 degree of phase places, is positioned at adjacent slide protrusion 62 In interval.

(front end teat 74)

As shown in Fig. 5～9, the front end teat 74 inner surface from the leading section of cutting plate 73 is towards hollow part The inside of 71 highlights.Front end teat 74 is gradually increased overhang from above towards lower section.

The axle portion of front end teat 74 and the pin 50 inserted by the peristome 61 of eyelet 40 in hollow part 71 The outer surface of 90 abuts, and is pushed by this outer surface, as shown in figure 20, in enlarged diameter direction Cutting plate 73 is opened in pushing.

(middle shaft part 91)

As shown in Figure 13～17, middle shaft part 91 hangs down setting from the central authorities of the lower surface of head 80.

(side band part 92)

As shown in figure 17, side band part 92 is from the middle shaft part 91 generally ' h ' with cross section as English capitalization The mode of type extends, and amounts to and forms two.As shown in Figure 13～17, side band part 92 is formed as tabular, position In the position clipping middle shaft part 91 and separate.

It addition, form a pair side band part 92, but it is not limited to this, at least there are two and be sufficient for, can To arrange more than three.It addition, as the shape of side band part 92, illustrate tabular, but be not limited to This.

(embeded slot 93)

As shown in figure 17, embeded slot 93 is formed in the relative spacing of a pair side band part 92, with a pair The side that the relative direction of side band part 92 is orthogonal is upwardly formed a pair.

Although it is not shown, it is but with being embedded in the peristome 61 of eyelet 40 convex prominent at embeded slot 93 The connecting portion 73a of cutting plate 73.

(push-pads 94)

As shown in figure 17, push-pads 94 highlights towards each embeded slot 93 respectively from middle shaft part 91, shape altogether Become two.As shown in Figure 13～15 and Figure 17, push-pads 94 is formed as tabular, compared with side band part 92, Bottom is formed short.The bottom of push-pads 94 is formed towards the inclined-plane that center is downward-sloping.

It addition, as the number of push-pads 94, illustrate two, but be not limited to this, at least have Two are sufficient for, and can be more than three.It addition, as the shape of push-pads 94, illustrate tabular, But it is not limited to this.

Push-pads 94 is advanced, with cutting plate 73 by the peristome 61 of eyelet 40 and in hollow part 71 Front end teat 74 inner surface abut.By pushing pin 50, push-pads 94 gradually pushes and opens segmentation Sheet 73.

(sliding tray 95)

As shown in Figure 13, Figure 14, Figure 16 and Figure 17, sliding tray 95 and the peristome 61 to eyelet 40 Interior prominent slide protrusion 62 (with reference to Fig. 9) sliding contact.

Sliding tray 95 at the both ends of side band part 92, i.e. axle portion 90 corner amount to formed four.

As shown in Figure 13, Figure 14 and Figure 16, sliding tray 95 substantially has following portion.

It addition, each portion of sliding tray 95 is not limited to following (1)～(3).

(1) interim fixed part 95a

As shown in Figure 13, Figure 14 and Figure 16, interim fixed part 95a is positioned at the side, bottom of side band part 92, Make slide protrusion 62 (with reference to Fig. 9) be positioned at temporary holding location, i.e., by axle portion 90 be engaging in and pass through hole The peristome 61 of eye 40 relatively shallowly inserts the state in hollow part 71, stops axle portion 90 from peristome 61 Depart from.

(2) pars intermedia 95b

As shown in Figure 13, Figure 14 and Figure 16, in the way of the height that pars intermedia 95b is positioned at side band part 92, Make slide protrusion 62 (with reference to Fig. 9) centrally located, i.e., by axle portion 90 be engaging in be inserted into hollow The state in way in portion 71.

(3) formal fixed part 95c

As shown in Figure 13, Figure 14 and Figure 16, formal fixed part 95c is positioned at the side, upper end of side band part 92, Make slide protrusion 62 (with reference to Fig. 9) be positioned at formal fixed position, i.e., by axle portion 90 be engaging in the deepest Ground inserts the state in hollow part 71.

Its result, stops slide protrusion 62 to return pars intermedia 95b, it is possible to prevent owing to pin 50 is to the side of extracting The reduced diameter of the foot 70 of the eyelet 40 caused to movement, and then eyelet 40 is in installing hole 21 and connection Hole 31 is rocked, come off or parts 30 rock relative to plate 20, installation strength decline or unload inferior.

(guiding rib 96)

As shown in Figure 13, Figure 15 and Figure 17, guiding rib 96 is a pair, is positioned at the diagonal angle in this axle portion 90 Direction, highlights parallel to each other from this axle portion 90, and along the direction of insertion extension in this axle portion 90, respectively Embed in four slits 72, be positioned in diagonally opposed two slit 72.

As shown in figure 17, guiding rib 96 highlights from the lateral surface of each side band part 92 respectively, has two. In two guiding ribs 96, it is positioned at the guiding rib 96 of upside in the figure from the side band part being similarly positioned in upside 92 extend substantially vertically upward, this side band part 92 this figure towards be positioned at left side end.Separately Outward, the guiding rib 96 being positioned at downside in the figure is the most vertical from the side band part 92 being similarly positioned in downside Directly extend, this side band part 92 this figure towards be positioned at right side end.

Guiding rib 96 when the peristome 61 in the axle portion 90 of pin 50 with eyelet 40 is as one man inserted, though The most not shown, but embed slide protrusion prominent in this peristome 61 62 (reference Fig. 9) and the most convex In the interval of the connecting portion 73a (with reference to Fig. 9) of the cutting plate 73 highlighted shape.

Therefore, in the peristome 61 of eyelet 40, if the axle portion 90 of pin 50 to rotate, then guiding rib 96 support upper with the end of the connecting portion 73a of slide protrusion 62 or cutting plate 73, stop axle portion 90 at opening Rotation in portion 61.

When being further inserted into pin 50, although not shown, but guiding rib 96 is in the foot 70 of eyelet 40 Slit 72 in advance.

Therefore, even if the end face of guiding rib 96 cutting plate 73 relative with clipping slit 72 supports upper, it is possible to Stop the axle portion 90 rotation in peristome 61.

As shown in Figure 13 and Figure 15, guiding rib 96 extends to the length in axle portion 90 from the lower surface of head 80 In the way of degree.

As shown in figure 21, make the leading section of guiding rib 96 along the imaginary circle centered by the shaft core in axle portion 90 Circular arc tilt sideling.

It addition, make the leading section of guiding rib 96 tilt sideling, but it is not limited to this, it is also possible to be formed as Rectangle or circle.

(forming method of pin 50)

Then, use Figure 22 that the forming method of pin 50 is illustrated.

As shown in figure 22, it is directed to the end face of thickness direction of rib 96 as parting line (P.L.1a, P.L.2a), Although it is not shown, but by split metal die for moulding shaping pin 50.Owing to making the leading section of guiding rib 96 Tilting sideling, therefore parting line (P.L.1a, P.L.2a) is positioned at two ends of thickness direction of guiding rib 96 In face, by central authorities end face.

Split metal die for moulding (not shown) using a side as fixing side, using the opposing party as drawer at movable side, As shown in figure 22, by opening mould to the either direction in the direction of the direction of arrow (1A, 1B), it is possible to Simply form pin 50.

Before comparing, use Figure 23 that the occasion arranging four guiding ribs 94 is illustrated.

Arranging the occasion of four guiding ribs 96, parting line (P.L.1a, P.L.2a) is everywhere, although not Diagram, but need to use particulate metal mould of the combination die mode of slide cores etc..That is, four guiding are being set The occasion of rib 96, as shown in figure 23, needs to open at least three directions of the direction of arrow (2A～2D) Mould, or make slide cores (not shown) slide.

Therefore, arranging the occasion of four guiding ribs 96, the structure of metal pattern is complicated, and molding cost increases.

In contrast, as the present invention, it is reduced to the occasion of two in the number being directed to rib 96, with The occasion arranging four guiding ribs 96 is compared, the simple in construction of metal pattern, has and can substantially reduce molding The advantage of cost.

(using method of buckle 10)

Then, to using the buckle 10 possessing said structure the method that parts 30 are arranged on plate 20 to be entered Row explanation.

First, as shown in Figure 2-5, pin 50 is inserted from the peristome 61 of eyelet 40, pin 50 is faced Time be fixed on eyelet 40.

Afterwards, as shown in figure 19, make parts 30 overlap on plate 20, make installing hole 21 and intercommunicating pore 31 is consistent.Then, the foot 70 of eyelet 40 is inserted installing hole 21 from intercommunicating pore 31 side.

Finally, by being fully inserted in eyelet 40 by pin 50, as shown in figure 20, make foot 70 at plate The downside enlarged diameter of 20, from table back side grip block 20 and parts 30 between flange part 60, thus Plate 20 and parts 30 are fixed with coincidence status.

Claims

1. a buckle, possesses eyelet and pin,

This eyelet has:

Diameter is bigger than the installing hole of plate, and has the flange part of peristome at center；

Hang down setting from above-mentioned flange part, and the foot in above-mentioned installing hole can be inserted；

From the slide protrusion that the inner circumferential of above-mentioned peristome is prominent towards center；And

Connect with above-mentioned peristome, and arrive the hollow part of above-mentioned foot,

This pin has:

The head that diameter is bigger than above-mentioned peristome；And

Axle portion, it hangs down setting from above-mentioned head, by above-mentioned peristome and insert in above-mentioned hollow part, from And make the periphery of above-mentioned foot expand at the dorsal part of above-mentioned plate, between above-mentioned foot and above-mentioned flange part Above-mentioned plate is clamped from the table back side,

This buckle is characterised by,

Above-mentioned foot includes:

At least four slits of this foot are cut along direction of insertion；And

The cutting plate being connected by the inner edge portion of connecting portion with above-mentioned peristome,

Being provided with guiding rib in above-mentioned axle portion, this guiding rib is a pair, is positioned at the diagonally opposed of this axle portion, from This axle portion highlights parallel to each other, and along the direction of insertion extension in this axle portion, from above-mentioned slide protrusion with upper The interval of the above-mentioned connecting portion stating cutting plate be respectively embedded in above-mentioned four slits, be positioned at diagonally opposed two In bar slit.

Buckle the most according to claim 1, it is characterised in that

The way of the length that above-mentioned guiding rib extends to above-mentioned axle portion from the lower surface of above-mentioned head.

Buckle the most according to claim 1 and 2, it is characterised in that

Make the leading section of above-mentioned guiding rib along the imaginary circle centered by the shaft core in above-mentioned axle portion circular arc sideling Tilt.

Buckle the most according to claim 1, it is characterised in that

Using the end face of the thickness direction of above-mentioned guiding rib as parting line, by split metal die for moulding molding Above-mentioned pin.