CN101285496B

CN101285496B - Elastic hook

Info

Publication number: CN101285496B
Application number: CN2008100913368A
Authority: CN
Inventors: 加藤久典; 金子仁
Original assignee: YKK Corp
Current assignee: YKK Corp
Priority date: 2007-04-10
Filing date: 2008-04-10
Publication date: 2011-04-20
Anticipated expiration: 2028-04-10
Also published as: CN101285496A; JP4825161B2; JP2008261363A

Abstract

The elastic hook in the invention comprises a main body (2) and a slider (3) which is slideably provided corresponding to the main body. One end of the main body is provided with a hook (20); the hook (20) has opening (21). The slider is arranged to slide between the first position for causing the opening to open and the second position to cause the opening close, and has a blocking piece (51) with elastic deformation at one end. A blocking means (54) for causing the hook top to block with the top of the blocking piece when the slider slides to the second position is provided. The blocking means comprises: arranging a concave (22) at the hook top; arranging a convex (53) at the top end of the blocking piece. The concave and the convex are formed by sinking or projecting to the direction crossed with the sliding direction of the slider.

Description

Elastic hook

Technical field

The present invention relates to elastic hook (Japanese: なす Ring), relate in particular to such as the elastic hook that is used for dismounting band and rope band in the bag class.

Background technique

For example, in the satchel with shoulder belt etc., elastic hook is as the accessory of dismounting shoulder belt simply.

In the past, as the known elastic hook that document 1 (Japanese Utility Model is registered communique No. 2571039) record is arranged of the elastic hook that is used for this purposes.

Described elastic hook comprises the slide block that synthetic resin elastic hook main body of making and the synthetic resin that can be free to slide that is arranged on this elastic hook rear portion are made.

Be formed with the all-in-one-piece sheet of turning back on its top of elastic hook main body, and be formed with guiding groove in both sides.Formed the pin sheet on slide block, this pin sheet can engage with the guiding groove of elastic hook main body with being free to slide, and is formed with protrusion tab on the top, and this protrusion tab stops up the elastic hook main body and the opening of the sheet of turning back with the top butt of the sheet of turning back.Turn back sheet and protrusion tab forms roughly the same wall thickness, is formed with snap-latch piece respectively on the top of the sheet of turning back and the top of protrusion tab, and the thickness of these snap-latch pieces is the roughly thickness of half of sheet and protrusion tab wall thickness of turning back, and they are butt on thickness direction.

Therefore, the ring portion that for example will install on tape is hooked on the sheet of turning back of elastic hook main body, slide block relative resilient hook main body is slided, then the protrusion tab of slide block stops up the opening of the elastic hook and the sheet of turning back with the top butt of the sheet of turning back, and can prevent that therefore ring portion breaks away from from the sheet of turning back of elastic hook main body.

Since the elastic hook of above-mentioned document 1 record be turn back the top of sheet and protrusion tab the top respectively with the wall thickness of turn back sheet and protrusion tab roughly half thickness mutually on thickness direction the structure of butt promptly to bridging arrangement, therefore when the sheet of turning back is applied big pulling force, the sheet of turning back is out of shape towards the outside, be elastic hook main body and the opening between the sheet of turning back towards the direction distortion that enlarges, might cause breakage owing to the difference of occasion.

Summary of the invention

In order to address the above problem, a kind of hook portion is applied the elastic hook that big pulling force also can suppress the hook portion distortion as much as possible even the object of the present invention is to provide.

Elastic hook of the present invention, it is characterized in that, comprise the slide block that main body and relative this main body are mounted slidably, described main body has hook portion, this hook portion has opening, described slide block be arranged to can described relatively main body in the primary importance that described opening is opened with make between the second place of described closure of openings and slide, and have when sliding into the described second place and the protrusion tab of described hook portion top butt, has snap-latch piece on any one party in described main body and described slide block, described snap-latch piece can be on the direction that is toward or away from described hook portion top resiliently deformable, and sealing or open described opening, when described slide block has slided into the described second place, described hook portion top and described snap-latch piece top with direction that the glide direction of described slide block is intersected on engage, described protrusion tab disposes abreast with the state that separates specified gap with described snap-latch piece on direction in the table of described slide block, and when described closure of openings, the inner edge of described protrusion tab constitutes enclosed space with the inner circumference edge of described hook portion in described hook portion, and the inner edge of described snap-latch piece is positioned at the outside with the inner edge of described protrusion tab direction position overlapped or inner edge in table.

Adopt this formation, with band or the tip part of rope band for example ring portion make slide block slide into the second place after being hooked on the hook portion of main body from primary importance.After slide block slides into the second place, the top of hook portion and the top of snap-latch piece with direction that the direction that slide block slides is intersected on engage mutually.

Since the top of the top of hook portion and snap-latch piece with direction that the direction of slide block slip is intersected on engage, therefore,, also can prevent the distortion of hook portion towards the outside even apply pulling force to hook portion by ring portion.That is, can suppress the direction distortion that hook portion enlarges towards opening as much as possible, even hook portion is applied the breakage that bigger pulling force also can be avoided hook portion.

Adopt this formation, when slide block slides into the second place, be arranged on protrusion tab and hook portion top butt on the slide block, when closure of openings, the inner edge of this protrusion tab constitutes enclosed space with the inner circumference edge of hook portion in hook portion.Therefore, when the ring portion of hook on hook portion contacted with slide block, protrusion tab contacted with ring portion, can prevent contacting of snap-latch piece and ring portion, thereby the tension that can prevent ring portion is in snap-latch piece.

Therefore, snap-latch piece can not take place to that is to say towards leaving the resiliently deformable of the direction of hook portion, though ring portion at the hook portion intrinsic displacement, recess and protuberance also can become and be difficult for the structure of throwing off.

Adopt this formation,, be the state that constitutes independently respectively, therefore can form the shape that makes the snap-latch piece resiliently deformable easily, for protrusion tab, can form on-deformable shape because snap-latch piece and protrusion tab are in the relation that separates the gap parallel configuration.Satisfy the shape of desired function separately owing to can constitute, therefore make easily.

In elastic hook of the present invention, be preferably in the clipping means that described hook portion top and described snap-latch piece top are provided with mutual engaging, described clipping means comprises: be arranged on the recess on any one party in described hook portion top and the described snap-latch piece top; And any the opposing party who is arranged on described hook portion top and described snap-latch piece top protuberance of going up and engaging with described recess, described recess is recessed to form towards the direction of intersecting with the glide direction of described slide block, and described protuberance is given prominence to formation towards the direction of intersecting with the glide direction of described slide block.

Adopt this formation, when hook portion is applied pulling force, will act on pulling force on the slide block glide direction elastic hook.At this moment, because recess and protuberance be towards the direction depression or outstanding formation of intersecting with the glide direction of slide block, promptly recess and protuberance constitute with respect to pulling force and are difficult for the structure of throwing off, even so also can prevent the distortion of hook portion reliably to the bigger pulling force of hook portion effect.

Description of drawings

Fig. 1 is the stereogram of the elastic hook of the example of the present invention seen from surface side.

Fig. 2 is the stereogram of the elastic hook of the above-mentioned example seen from back side.

Fig. 3 is the plan view of user mode of the elastic hook of the above-mentioned example of expression.

Fig. 4 is the side view of state that the elastic hook of above-mentioned example is controlled in expression.

Fig. 5 is the V-V line sectional view of Fig. 4.

Fig. 6 is the VI-VI line sectional view of Fig. 5.

Fig. 7 is the sectional view of the effect (slide block is in the state in the way of rising) of the elastic hook of the above-mentioned example of expression.

Fig. 8 is the sectional view of effect (slide block is in the state of the rising limit) of the elastic hook of the above-mentioned example of expression.

Fig. 9 is the sectional view of the elastic hook (closed state) of expression variation 1 of the present invention.

Figure 10 is the sectional view of the elastic hook (open mode) of the above-mentioned variation 1 of expression.

Figure 11 is the sectional view of the elastic hook of expression variation 2 of the present invention.

Figure 12 is the protuberance of expression in the elastic hook of the present invention and the stereogram of the variation of recess.

Embodiment

Below, with reference to accompanying drawing an example of the present invention is described.

(formation of example)

Fig. 1 is the stereogram of the elastic hook of this example of seeing from surface side, Fig. 2 is the stereogram of the above-mentioned elastic hook seen from back side, Fig. 3 is the plan view of the user mode of the above-mentioned elastic hook of expression, Fig. 4 is the side view that the state of above-mentioned elastic hook is controlled in expression, Fig. 5 is the V-V line sectional view of Fig. 4, Fig. 6 is the VI-VI line sectional view of Fig. 5, Fig. 7 is the sectional view of expression effect (slide block is in the state in the way of rising), and Fig. 8 is the sectional view of expression effect (slide block is in the state of the rising limit).

(the whole explanation that constitutes is with reference to Fig. 1～Fig. 4)

The elastic hook 1 of this example comprises main body 2 and is arranged to slidably slide block 3 of relative this main body 2.After utilizing the injection molded of synthetic resin materials such as polyoxymethylene or ejection compress moulding to form main body 2 and the slide block 3, they are made up.

(explanation of main body is with reference to Fig. 1～Fig. 4 and Fig. 5, Fig. 6)

Main body 2 comprises: the handle 10 of the rectangular plate shape of vertical length; Be formed in the hook portion 20 on the end (end of the glide direction of slide block 3) of the length direction of this handle 10 integratedly; Be formed in the band joint 30 on the other end of length direction of holding part 10 integratedly.

On the left and right sides face of the width direction of handle 10, offer guiding groove 11, this guiding groove 11 at the length direction of handle 10 promptly from hook portion 20 sides to being with joint 30 sides to form continuously.Guiding groove 11 connects the inside of holding part 10 on width direction.On the surface of holding part 10, be formed with the accommodation section 12 that the degree of depth extends to guiding groove 11, be formed with operation unit 17 at the back side of holding part 10.

Accommodation section 12 constitutes the space of accommodating elastic foot sheet 15 described later and teat 43, comprise first accommodation section 13 and from this first accommodation section 13 towards second accommodation section 14 that hook portion 20 sides form continuously.Outstandingly in first accommodation section 13 dispose a pair of elastic foot sheet 15, this a pair of elastic foot sheet 15 is from the wall of band joint 30 sides to be holded up and integratedly along with closely tilting mutually towards hook portion 20.The back side of operation unit 17 by making handle 10 along with from band joint 30 towards hook portion 20, wall thickness forms on attenuation ground gradually, forms the concave shape that swells towards the outside then hook portion 20 near.Promptly form the concave shape that the finger of operation can block.

Hook portion 20 bending formings are to depict about 3/4 circle from side's side of the width direction of handle 10.Be that bending forming is to depict about 3/4 circle from side's side of the width direction of handle 10 towards the opposing party's side, thereby and stay the opening 21 of about 1/4 circle between the end of the length direction of handle 10.On the outer circumferential face of the top of hook portion 20, be formed with recess 22.Recess 22 is arranged to from the top outer circumferential face of hook portion 20 towards caving in direction that the direction that to be connected direction that the axis of hook portion 20 with band joint 30 intersect be court slides with slide block 3 is intersected.At this, be arranged to towards the direction of sliding with the slide block 3 direction depression of quadrature roughly.

Band joint 30 comprises: give prominence to a pair of armed lever 31 that is shaped towards the direction of leaving mutually from the other end both sides of handle 10; Be erected on the top of this a pair of armed lever 31 and constitute the roll coil of strip distaff 32 of one.With with in 33 gaps of inserting between a pair of armed levers 31 and the roll coil of strip distaff 32, will be with 33 to be wound in the roll coil of strip distaff 32 the back card and to end and fixing, thereby elastic hook 1 will be installed in on 33 the top.Also can replace band joint 30, the through hole that formation can be inserted logical circular rope band constitutes the rope band joint.

(slide block explanation is with reference to Fig. 1～Fig. 4 and Fig. 5～Fig. 8)

Slide block 3 is configured as cross section C font, comprising: the cover plate 40 of the surface side of main body covered 2 handle 10; And be integral from the width direction left and right sides of this cover plate 40 and the pair of side plates 50 of bending forming generally perpendicularly; The engaging teat 60 that forms and engage with the guiding groove 11 of main body 2 slidably on the top of this side plate 50, and slide block 3 is arranged to main body 2 relatively and is slided on the length direction that between the second place (position of Fig. 5) of the primary importance of opening opening 21 (position of Fig. 8) and sealing opening 21 is handle 10.

Side is formed with operation unit 41 on the surface of cover plate 40 (outer surface), and (internal surface) side forms teat 43 in the accommodation section 12 that is housed in main body 2 overleaf.

The end side surface of length direction that operation unit 41 is configured as cover plate 40 is thinner than length direction the other end side surface wall, and forms the concave spherical surface shape of the relative peripheral recesses in center.And, be formed with from the stepped part 42 of thinner wall section to the heavy section inclination at the intersection of heavy wall.Thus, the finger plaster that will operate is on operation unit 41, and the finger tripe just is stuck on the stepped part 42.Under this state, slide block 3 is slided towards primary importance from the second place, just can under finger is stuck in state on the stepped part 42, slide block 3 be slided.

Teat 43 has diapire and a pair of skew wall, and a pair of skew wall forms triangular shape along with the two ends from diapire closely tilt mutually towards band joint 30.Teat 43 is housed in the accommodation section 12 of main body 2, and slide at slide block 3 under the state of the second place, the wall of second accommodation section 14 of the diapire of teat 43 and main body 2 (walls of hook portion 20 sides) butt, and insert between a pair of elastic foot sheet 15 of main body 2 at the top by a pair of skew wall be combined into of teat 43.

Be formed with respectively on the side plate 50 of the hook portion that is positioned at main body 2 20 tip side in side plate 50 elastically deformable snap-latch piece 51, separate the protrusion tab 57 of specified gap parallel configuration with this snap-latch piece 51.

Be formed with hook portion 52 on the top of snap-latch piece 51, be formed with guide surface 55 and elastic hinge portion 56 respectively at the terminal side of this hook portion 52.

Hook portion 52 forms has the hook-shaped of and the protuberance 53 that with the recess 22 of hook portion 20 engage outstanding towards hook portion 20 on the top.Protuberance 53 towards with is connected direction that the axis of hook portion 20 with band joint 30 intersect promptly court and slide block 3 direction of the sliding direction of intersecting give prominence to setting.At this, towards the direction of sliding with slide block 3 outstanding setting of direction of quadrature roughly.In this example, the clipping means 54 that the top that is made of hook portion 20 when slide block 3 slides into the second place the protuberance 53 of the recess 22 of hook portion 20 and snap-latch piece 51 and the top of snap-latch piece 51 engage mutually.

Slide block 3 from the second place when primary importance is slided, the sidewall bight of guide surface 55 and the handle 10 of main body 2 is promptly across the top relative bight butt of opening 21 with hook portion 20, the direction that the top that makes snap-latch piece 51 intersects towards the direction of sliding with slide block 3, is the direction resiliently deformable of quadrature roughly at this.Particularly, guide surface 55 is configured in the elastic hinge portion 56 and the internal surface between the hook portion 52 of snap-latch piece 51, have the length in the opening 21 that can be housed in hook portion 20, form along with the slip surface that leaves handle 10 towards the glide direction of slide block 3 gradually be sidewall after close again concave arc shape face.

Elastic hinge portion 56 utilizes the slot part that the terminal side inner face of snap-latch piece 51 forms and forms thin wall shape.Thus, hook portion 52 forms the roughly structure of the direction resiliently deformable of quadrature of easy court and the axis that is connected hook portion 20 and band joint 30.

Protrusion tab 57 separates on direction in the table of slide block 3 with snap-latch piece 51 by the joint-cutting 58 on the side plate 50 that is arranged on slide block 3 and separates with gap, and has when slide block 3 slides into the second place and the length of the top butt of hook portion 20.The inner edge of protrusion tab 57 extends to the top of cover plate 40 circular-arcly, and when slide block 3 was in the second place, promptly the inner circumference edge of protrusion tab 57 constituted the enclosed space of circular with the inner circumference edge of hook portion 20 in hook portion 20 when opening 21 sealing.At this moment, the inner edge of snap-latch piece 51 is positioned at the outside with the inner circumference edge of protrusion tab 57 direction position overlapped or inner circumference edge in table, and the inner edge of snap-latch piece 51 can be outstanding to enclosed space.

(effect of example, effect are with reference to Fig. 1～Fig. 8)

In so constituting, utilize the finger of operating (being generally thumb and forefinger) to pinch the

operation unit

41,17 of slide block 3 and main body 2, make slide block 3 slide into primary importance from the second place.At this moment, because the

operation unit

41,17 of slide block 3 and main body 2 forms concavity, therefore finger is placed on the

operation unit

41,17 easily, and the applying degree of finger is good, and slide block 3 is slided.

When slide block 3 when the second place slides into primary importance, the direction resiliently deformable that the elastic foot sheet 15 of main body 2 is opened towards mutual expansion gradually because of the teat 43 of slide block 3.At this moment, 3 effects have towards the power of the direction of second site reversion to slide block because of the restoring force of the elastic foot sheet 15 of main body 2.

Meanwhile, when slide block 3 when the second place slides into primary importance, the top of snap-latch piece 51 because of be arranged on the slide block 3 guide surface 55 towards with the glide direction of the slide block 3 direction resiliently deformable of quadrature roughly.So, is that elastic hinge portion 56 be resiliently deformable that center swing to moving of sliding of primary importance and snap-latch piece 51 with the cardinal extremity of snap-latch piece 51 by slide block 3, the protuberance 53 of snap-latch piece 51 leaves with the track of the circular arc recess 22 from hook portion 20, therefore can reasonably remove the fastening state of recess 22 and protuberance 53.

At this moment, guide surface 55 forms the concave arc shape face, so that constituting point with the sidewall of handle 10 contacts, that is to say, the sidewall of guide surface 55 and handle 10 exceedingly closely contact, so following problem can not take place: the finger of operating leave main body 2 and slide block 3

operation unit

17,41, make slide block 3 slide block 3 when primary importance is returned to the second place also not be returned to the second place.

Like this, when making slide block 3 when the second place slides into primary importance, the snap-latch piece 51 of slide block 3 and protrusion tab 57 are kept out of the way from the opening 21 of hook portion 20, so the opening 21 of hook portion 20 is opened.

Under this state, with band or the tip part of rope band for example ring portion 70 make the finger of operating leave the

operation unit

17,41 of main body 2 and slide block 3 after being hooked on the hook portion 20 of main body 2.So the restoring force of the elastic foot sheet 15 of main body 2 acts on the teat 43 of slide block 3, slide block 3 slides into the second place from primary importance.When slide block 3 slides into the second place, the top of hook portion 20 is engaged mutually with the top of snap-latch piece 51.That is, the recess 22 that is arranged on hook portion 20 tops engages mutually with the protuberance 53 that is arranged on snap-latch piece 51 tops.

Because the top of hook portion 20 is in the mutual state that engages with the top of snap-latch piece 51, therefore, even apply pulling force by ring portion 70 to hook portion 20, also can prevent the distortion of hook portion 20 towards the outside.That is, owing to be provided with hook portion 20 at an end of main body 2, be provided with band joint 30 at the other end, therefore when hook portion 20 was applied pulling force, tension was on the axial direction that connects hook portion 20 and band joint 30.At this moment, because recess 22 caves in the direction of the orthogonal axe that is connected hook portion 20 and band joint 30 with protuberance 53 courts or is provided with highlightedly, promptly, recess 22 and protuberance 53 are the structures that are difficult for disengagement with respect to pulling force, even also can prevent the distortion of hook portion 20 reliably to the bigger pulling force of hook portion 20 effects.

Therefore, can suppress hook portion 20 as much as possible towards the direction distortion that opening 21 is enlarged, even hook portion 20 is applied the breakage that bigger pulling force also can be avoided hook portion 20.

At this moment, make slide block 3 slide into the second place, then be arranged on the top butt of protrusion tab 57 and hook portion 20 on the slide block 3, opening 21 is sealed by the inner circumference edge of the inner circumference edge of this protrusion tab 51 and hook portion 20.

Therefore, be hooked on ring portion 70 displacements on the hook portion 20 and when contacting with slide block 3, protrusion tab 57 contacts with ring portion 70, can prevent contacting of snap-latch piece 51 and ring portion 70, thereby the tension that can prevent ring portion 70 is in snap-latch piece 51.Therefore, snap-latch piece 51 can not take place towards the resiliently deformable of leaving the direction of hook portion 20, that is to say, displacement with respect to ring portion 70, recess 22 and protuberance 53 also are the structures of be difficult for throwing off, even also can prevent the distortion of hook portion 20 when therefore ring portion 70 produces displacements reliably to the bigger pulling force of hook portion 20 effects.

(variation)

In addition, the present invention is not limited to the elastic hook of the illustrated structure of above-mentioned example, also comprises following variation.

(variation 1)

Fig. 9 and Figure 10 represent the elastic hook 1A of variation 1.The elastic hook 1 of above-mentioned example is the outer elastic deformed configurations of snap-latch piece 51 towards hook portion 20, but the elastic hook 1A of variation 1 is the inboard elasticity deformed configurations of snap-latch piece 51A towards hook portion 20.

Be that with the difference of above-mentioned example snap-latch piece 51A and main body 2 form as one.Snap-latch piece 51A from an end of main body 2 with respect to the axis almost parallel that connects hook portion 20 and band joint 30 give prominence to shaping, and be formed with the 56A of elastic hinge portion, then after the oblique outstanding shaping of the approximate centre of hook portion 20, towards the skewed laterally more outstanding shaping of the recess 22 of hook portion 20.

In addition, be formed with guide surface 55A on slide block 3, it makes snap-latch piece 51A towards hook portion 20 inboard resiliently deformables.Guide surface 55A is formed on the inboard of the prolongation sheet 59 that extends from an end of side plate 50 (being positioned at the side plate 50 of hook portion 20 tip side) towards hook portion 20 tops, is configured as the inclined plane type that increases gradually to the inside along with 20 the top wall thickness from an end towards hook portion.Slide at slide block 3 under the state of the second place, prolong the top of sheet 59 and the top butt of hook portion 20.

In so constituting, when slide block 3 from the second place (state of Fig. 9) when sliding into primary importance, as shown in figure 10, the guide surface 55A that is arranged on the slide block 3 makes its inwards resiliently deformable when the cardinal extremity with snap-latch piece 51A partly is the 56A of elastic hinge portion butt.Therefore, the top of snap-latch piece 51A towards with the axis that is connected hook portion 20 and the is with joint 30 direction resiliently deformable of quadrature roughly, the protuberance 53 of snap-latch piece 51A leaves the recess 22 of hook portion 20.

Therefore, adopt the elastic hook 1A of variation 1, because snap-latch piece 51A is towards hook portion 20 inboard resiliently deformables, so the part of the opening 21 of hook portion 20 can not be stuck sheet 51A and stop up, and can open opening 21 significantly.Therefore have ring portion 70 and be hooked on advantage on the hook portion 20 easily.

As shown in Figure 9, slide at slide block 3 under the state of the second place, the protuberance 53 of snap-latch piece 51A engages with recess 22 from the inboard of hook portion 20, even therefore because of the displacement of ring portion 70 to the power of snap-latch piece 51A effect towards the outside, the protuberance 53 of snap-latch piece 51A can not removed with engaging yet of the recess 22 of hook portion 20.And, the prolongation sheet 59 of slide block 3 with the state of the top butt of hook portion 20 under be positioned at the outside of snap-latch piece 51A,, therefore become and more be difficult to resolve the structure of removing.

(variation 2)

Figure 11 represents the elastic hook 1B of variation 2.The elastic hook 1 of above-mentioned example and the elastic hook 1A of variation 1 are snap-latch piece 51, the 51A outside or the inboard elasticity deformed configurations towards hook portion 20, but the elastic hook 1B of variation 2 are snap-latch piece 51B towards and the direction (surface side direction) of resiliently deformable direction (inward-outward direction of the hook portion 20) quadrature of snap-

latch piece

51,51A carry out the structure of resiliently deformable.

Be that with the difference of above-mentioned example snap-latch piece 51B and main body 2 form as one.Snap-latch piece 51B extends to the recess 22 of hook portion 20 and integrally formed from an end of main body 2, has the protuberance 53 that engages with recess 22 on the top, has the 56B of elastic hinge portion of thin wall shape at the root of snap-latch piece 51B.With the 56B of this elastic hinge portion is the resiliently deformable fulcrum, and the recess 22 of hook portion 20 is left on the top of snap-latch piece 51B.

Protrusion tab 57 forms as one with slide block 3.Be formed with guide surface 55B on protrusion tab 57, the internal surface butt of itself and snap-latch piece 51B makes surface side (in Figure 11 left side) resiliently deformable of the top of snap-latch piece 51B towards elastic hook 1B.Internal surface at snap-latch piece 51B is formed with the protuberance 61 that contacts with guide surface 55B.Guide surface 55B forms arc surface, and wall thickness reduces to main body 2 gradually from hook portion 20.The position that resiliently deformable takes place at the snap-latch piece 51B of slide block 3 is formed with breach 62, because this breach 62 makes slide block 3 not contact with snap-latch piece 51B.

In so constituting, when slide block 3 when the second place slides into primary importance, shown in the dot and dash line of Figure 11, be arranged on the slide block 3 guide surface 55B with the root butt of snap-latch piece 51B in make it towards the surface side resiliently deformable.Therefore, the top of snap-latch piece 51B towards with the axis that is connected hook portion 20 and the is with joint 30 direction resiliently deformable of quadrature roughly, the protuberance 53 of snap-latch piece 51B leaves the recess 22 of hook portion 20.

Therefore, adopt the elastic hook 1B of variation 2 also can realize the effect identical with above-mentioned example.

(other variation)

In above-mentioned example, the recess 22 and the protuberance 53 that constitute clipping means 54 are towards hook portion 20 inboard depression or outstanding structures, promptly, be resiliently deformable direction depression or outstanding structure towards snap-latch piece 51, but be not limited thereto, also the direction (surface or back side direction) of resiliently deformable direction (inward-outward direction of the hook portion 20) quadrature of court and snap-latch piece 51 caves in or outstanding structure.

For example, as shown in figure 12, be formed with protuberance 53 on the top of snap-latch piece 51, these protuberance 53 courts promptly give prominence to towards the surface side and the back side direction of elastic hook 1 with the direction of resiliently deformable direction (left and right directions of Figure 12) quadrature of snap-latch piece 51, top in hook portion 20 has formed lip part 23 towards the outside, the central authorities of this lip part 23 to bottom surface is formed with the recess 22 of T font.Also can realize the effect identical by this formation with above-mentioned example.

In the above-mentioned example, clipping means 54 is made of recess 22 that is arranged on hook portion 20 tops and the protuberance 53 that is arranged on snap-latch piece 51 tops, but the also formation opposite with it is provided with protuberance on hook portion 20 tops, on snap-latch piece 51 tops recess is set, also can realizes identical effect.

In addition, depression direction, the projected direction of recess 22 and protuberance 53 is not limited to above-mentioned example and variation and is confined to direction with glide direction (axial direction that is connected hook portion 20 and the band joint 30) quadrature of slide block 3 like that, so long as the glide direction of slide block 3 direction of intersecting at a certain angle gets final product relatively.

In the above-mentioned example, the slip surface that guide surface 55 is arranged on the slide block 3 in the slip surface of handle 10 and slide block 3 is on the internal surface of snap-latch piece 51, but also can be opposite with it, also can be arranged on the slip surface of handle 10.But, the slip surface that guide surface 55 is arranged on slide block 3 is on the internal surface of snap-latch piece 51 time, when slide block 3 slides into the second place, promptly engage with the top of hook portion 20 and make under the state of opening 21 sealings at the snap-latch piece 51 of slide block 3, the guide surface 55 of slide block 3 is positioned at opening 21, can make the face shaping of elastic hook 1 become slender.Therefore has the effect that improves appearance design.

In the above-mentioned example, main body 2 and slide block 3 are all made by synthetic resin, but but also only a side make by synthetic resin, or main body 2 and slide block 3 all are made of metal.For the metal species of using or structure sometimes rigidity can reduce, even but under these circumstances, adopt elastic hook of the present invention, even hook portion is applied the distortion that bigger pulling force also can suppress hook portion.

Claims

1. an elastic hook is characterized in that,

Comprise the slide block (3) that main body (2) and relative this main body (2) are mounted slidably,

Described main body (2) has hook portion (20), and this hook portion (20) has opening (21),

Described slide block (3) be arranged to can described relatively main body (2) in the primary importance that described opening (21) is opened with make between the second place of described opening (21) sealing and slide, and have when sliding into the described second place and the protrusion tab (57) of described hook portion (20) top butt

Have on any one party in described main body (2) and described slide block (3) snap-latch piece (51,51A, 51B), described snap-latch piece can be on the direction that is toward or away from described hook portion (20) top resiliently deformable, and sealing or open described opening (21),

When described slide block (3) when having slided into the described second place, described hook portion (20) top and described snap-latch piece (51) top with direction that the glide direction of described slide block (3) is intersected on engage,

Described protrusion tab (57) disposes abreast with the state that separates specified gap with described snap-latch piece (51) on direction in the table of described slide block (3), and when described opening (21) seals, the inner edge of described protrusion tab (57) constitutes enclosed space with the inner circumference edge of described hook portion (20) in described hook portion (20), and

The inner edge of described snap-latch piece (51) is positioned at the outside with the inner edge of described protrusion tab (57) direction position overlapped or inner edge in table.

2. elastic hook as claimed in claim 1 is characterized in that,

Described hook portion (20) top and described snap-latch piece (51,51A, 51B) top is provided with the clipping means (54) of mutual engaging,

Described clipping means (54) comprising: be arranged on described hook portion (20) top and described snap-latch piece (51,51A, 51B) recess (22) on any one party in the top; And be arranged on described hook portion (20) top and described snap-latch piece (51,51A, 51B) any the opposing party on top protuberance (53) of going up and engaging with described recess (22),

Described recess (22) court is recessed to form with the direction that the glide direction of described slide block (3) is intersected, and formation is given prominence to the direction that the glide direction of described slide block (3) is intersected by described protuberance (53) court.