CN2807855Y - Buckle device - Google Patents

Abstract

The utility model relates to a belt buckling device which can cause the front end of a sliver belt-shaped safety belt to be assembled and disassembled correspondingly to the specified parts of vehicles. The utility model comprise a device body, a locking mechanism, a releasing mechanism and a limiting mechanism, wherein the front end part of a tongue piece for fixing the safety belt is side inserted from the front end of the device body; the locking mechanism limits the tongue piece from moving toward the direction of outward drawing of the device body through hanging and buckling the tongue piece which is mechanically connected to the device body; the releasing mechanism releases that the locking mechanism hangs and buckles the tongue piece through moving toward the releasing direction. Under the state that the locking mechanism hangs and buckles the tongue piece, the limiting mechanism hangs and buckles the releasing mechanism, and the releasing mechanism moves toward the releasing direction.

Description

Buckle device

Technical field

The utility model relates to a kind of front end that makes safety belt with respect to the regulation position of vehicle buckle device removably.

Background technology

The three-point-type seat belting is sitting in the driver's seat of vehicle and the health of the passenger on the copilot seat with the safety belt constraint of bar-shape, have the tape winding apparatus that is fixed on the car body in the side, seat, the end of the safety belt of bar-shape is fixed on the spool of this tape winding apparatus.

The front end of safety belt is fixed on the lock buckling part.This lock buckling part is being fixed on the car body near the tape winding apparatus.In addition, above tape winding apparatus, pass through snap close and be installed in center pillar etc. and locate, its front end stretches out more upward than the spool of safety belt, and this front end runs through and is formed on the slotted hole that passes through on the snap close and turns back downwards.

Between the seat, at the opposition side of tape winding apparatus, buckle device is fixed on the car body.Buckle device can and be in the tongue piece that passes through between snap close and the lock buckling part and be located on the safety belt and can buckle, the passenger who is sitting on the seat pulls out tongue piece, when pulling out safety belt from spool, safety belt is tied up on the health of oneself, tongue piece and buckle device are buckled, tongue piece is remained on the buckle device, thus with seatbelt wearing on one's body the passenger.

And, in recent years, be called as the seat belting that has also adopted above-mentioned bikini on the pillion of vehicle of van and miniature box car.

On the other hand, the above-mentioned vehicle rear seat that is called as van and miniature box car both can fall the chair back to an example opposite with cushion significantly, make pillion become plane, the chair back is rotated, overlap with cushion until the chair back, can carry out various seat arrangement according to passenger's the number and the situation of bearing goods etc.When carrying out above-mentioned seat arrangement, in the three-point-type seat belting of pillion correspondence, the safety belt that passes through between snap close and the lock buckling part often becomes obstruction.

From the above point of view, when carrying out seat arrangement, the fore-end of the safety belt of the seat belting of pillion correspondence should disconnect from lock buckling part, and safety belt is rolled, near snap close is passed through in the fore-end arrival of safety belt.

When realizing above-mentioned structure, another tongue piece different with the tongue piece of the mid portion that is located at safety belt is located at the leading section of safety belt, another connecting band buckle device different with above-mentioned buckle device is installed on the lock buckling part simultaneously, as example, refer to Patent Document 1 (spy opens clear 58-15807 communique) and patent documentation 2 (spy opens clear 62-97501 communique).When adopting above-mentioned structure, under the state, the tongue piece of safety belt front end remains on the connecting band buckle device usually, when carrying out seat arrangement, removes the maintenance of connecting band buckle device to tongue piece.Thus, the fore-end of safety belt can temporarily disconnect from lock buckling part.

The utility model content

Above-mentioned connecting band buckle device makes the locking piece (being called as " latch " in patent documentation 1,2) that is located at enclosure interior buckle with tongue piece, thereby has limited tongue piece moving to the direction of extracting from housing.And, when from the connecting band buckle device, taking out tongue piece,, move it, thereby unlock part buckling tongue piece by the disengage button that is pressed on enclosure interior etc.

Near tongue piece when herein, the moving direction of the disengage button during to the buckling of tongue piece is set at tongue piece and inserts in the housing with the part that unlocks in the part safety belt is vertical direction longitudinally.The connecting band buckle device is connected with lock buckling part by rigid elements such as iron plates, therefore basically so long as not pushing disengage button wittingly, does not just have the power that disengage button is moved and is applied on the disengage button.

But, use when the connecting band buckle device being connected with lock buckling part with relatively more soft material such as the belt of the identical material of safety belt unit material, if the connecting band buckle device is rocked in the vibration when vehicle is advanced etc., then power might act on the disengage button.

In addition, be provided with the prestretched device in the seat belting, gas is admitted in the cylinder sharp, piston is moved, and the piston that moves makes the spool rotation of tape winding apparatus, and this prestretched device is rolled safety belt, under the vehicle emergency deceleration regime, by this prestretched device is worked, forcibly roll safety belt, increase binding force to passenger's body.

In order to produce gas, above-mentioned prestretched device adopts the structure that is made the gas-forming agent flash fire by gunpowder etc., still, the burning of gunpowder and gas-forming agent etc., the impact that the prestretched device is done the time spent also may cause masterpiece to be used on the disengage button.

The utility model has been considered above-mentioned situation, and purpose is to provide a kind of buckle device, and it can prevent to make the buckle disengaging of locking mechanism to tongue piece owing to apply external force.

An aspect of the present utility model provides a kind of buckle device, comprise apparatus main body, locking mechanism, cancel system and limiting mechanism, said apparatus main body mechanical connection is on the regulation position of vehicle, and the tongue piece of the fore-end of the banded safety belt of fixed length inserts from front end simultaneously; Above-mentioned locking mechanism is located at the aforementioned means body interior, limits aforementioned tongue piece and moves to the direction of extracting from aforementioned apparatus main body by buckling with aforementioned tongue piece, and aforementioned tongue piece mechanically is connected on the aforementioned means main body; Above-mentioned cancel system is located at the aforementioned means body interior, by removing aforementioned locking mechanism buckling aforementioned tongue piece to the displacement of removing direction; Under the state that aforementioned locking mechanism and aforementioned tongue piece buckle, above-mentioned limiting mechanism and aforementioned cancel system buckle, and limit aforementioned cancel system to the displacement of aforementioned releasing direction.

In the above-mentioned buckle device of the present utility model, insert apparatus main body in case be located at the tongue piece of safety belt front end from front end, then locking mechanism and tongue piece buckle.Under the buckle state of locking mechanism to this tongue piece, locking mechanism has limited tongue piece to the displacement of extracting direction from apparatus main body.Thus, tongue piece and apparatus main body mechanical connection are indirectly with the front end of safety belt and the regulation position mechanical connection of vehicle.

In addition, under the front end of above-mentioned safety belt and state that the regulation position of vehicle is connected, if make cancel system to removing the direction displacement, then locking mechanism has been removed buckling of tongue piece.Thus, the mechanical connection state of tongue piece and apparatus main body is removed, and tongue piece can be extracted from apparatus main body.By removing the mechanical connection state of tongue piece and apparatus main body, can remove the mechanical connection between safety belt front end and the vehicle specifies position.

Here, in the above-mentioned buckle device of the present utility model, under the state that locking mechanism and tongue piece buckle, because cancel system buckles with limiting mechanism, so limiting mechanism makes cancel system not remove described buckling up to limiting mechanism to the displacement of releasing direction.Thereby under this state, cancel system can be to removing the direction displacement.The problem of locking mechanism to the state that buckles of tongue piece removed in vibration that can prevent vehicle for example effectively etc.

As mentioned above, even external force acts on the cancel system, buckle device of the present utility model can prevent that also cancel system is to removing the direction displacement.

Description of drawings

Fig. 1 is the decomposition side view of the buckle device of an embodiment of the utility model.

Fig. 2 is the plan cross-sectional view of major part of the buckle device of an embodiment of the utility model.

Fig. 3 is the corresponding sectional view of Fig. 2 that inserts the initial conditions in the apparatus main body with the expression tongue piece.

Fig. 4 is the corresponding sectional view of Fig. 2 that inserts the state in the apparatus main body with the expression tongue piece.

Fig. 5 is the side cross-sectional views of major part of the buckle device of an embodiment of the utility model.

The specific embodiment

Fig. 1 has shown the formation of the buckle device 10 of an embodiment of the utility model with decomposition side view.As shown in the figure, buckle device 10 has the housing 12 of constituent apparatus main body.Housing 12 is made of lower house 14 and upper shell 16.

Lower house 14 has base plate 18.Base plate 18 horizontal two end portions are formed with sidewall 20.By forming tongue-shaped flange 22 with an end that laterally reaches the vertical side of thickness direction both direction of base plate 18.

Relative therewith, upper shell 16 has along the relative upper wall 24 of the thickness direction of above-mentioned base plate 18 and base plate 18.Upper wall 24 is similar to the shaped slightly of base plate 18, and its horizontal two ends are formed with sidewall 26.Along the thickness direction assembling lower house 14 and the upper shell 16 of base plate 18, thereby form housing 12, under assembled state, the front end of the front end of sidewall 20 and sidewall 26 is in contact with one another.

In addition, by forming tongue-shaped flange 28 with an end that laterally reaches the vertical side of thickness direction both direction of upper wall 24.Flange 28 is similar to the shaped slightly of flange 22, and when being assembled in upper shell 16 on the lower house 14 as mentioned above, two flanges 22,28 are relative along the thickness direction of base plate 18 and upper wall 24.

And longitudinal wall 30 is formed on the end of a side opposite with a side of the flange 28 that is formed with upper wall 24.Under the state that upper shell 16 is assembled on the lower house 14, on the end of the base plate 18 of the side that longitudinal wall 30 contacts are opposite with a side that is formed with flange 22.Form the opening portion 32 of essentially rectangular at the substantial middle place of longitudinal wall 30, can insert for tongue piece 34.

Tongue piece 34 has base portion 36.Base portion 36 forms the laterally long bulk along base plate 18.And on base portion 36, form along its vertically long through hole 38.The leading section of not shown safety belt passes through hole 38.After the safety belt that passes through hole 38 was turned back in through hole 38, the end side part that is sewn to safety belt by through hole 38 was first-class, engages safety belt.Front end with safety belt is fixed on the base portion 36 of tongue piece 34 thus.

Insert the vertical pars intermedia of sheet 42 from the horizontal end of base portion 36 and stretch out, this inserts sheet 42 from inserting the opening portion 32 with the end of base portion 36 opposition sides.

On the other hand, the inside of housing 12 is provided with the buckle main body 44 with housing 12 common constituent apparatus main bodys.Buckle main body 44 has a pair of guide plate 46,48.

Guide plate 46 forms thickness directions tabular along the thickness direction separately of base plate 18 and upper wall 24.The outstanding lug 50 that forms from the end of longitudinal wall 30 sides of guide plate 46.

Lug 50 embeds from the open-work 54 of the outstanding piece (バ one サ Port one ト) 52 (with reference to Fig. 2) that forms of inner face of upper wall 24, thereby restricted guidance plate 46 is determined the position of guide plate 46 in housing 12 to the displacement of longitudinal wall 30 sides during assembling.

With base plate 18 laterally for its longitudinally rectangle pilot hole 56 be formed on the guide plate 46.And then locking board 58 is formed on the end with the guide plate 46 of longitudinal wall 30 opposite sides.

Locking board 58 forms accordingly with above-mentioned flange 22,28, and under the state of relative lower house 14 assembling upper shells 16, locking board 58 is sandwiched between flange 22 and the flange 28.Along base plate 18 laterally for its longitudinally through hole 60 be formed on the locking board 58.

On flange 22, form the through hole 62 similar accordingly to this through hole 60, on flange 28, form and the similar through hole 64 of through hole 60,62 shapes to through hole 60 shapes.For example pass through hole 60～64 with the tape member that does not show in the drawings of the identical material of safety belt.

After tape member is turned back in through hole 60～64, engage by the part after sew up waiting the part that makes before turning back and turning back.Thus, an end of tape member is fixed on the locking board 58.Be fixed on the plate member that forms by metal etc. with the end of the tape member of the opposition side that ties up to the side on the locking board 58.Plate member is fixed on the regulation position of car body by retention mechanisms such as screws.Thus, locking board 58 is fixed on the car body indirectly.

On the other hand, guide plate 48 is located at upper wall 24 sides, and the interval of guide plate 48 and guide plate 46 is greater than the gauge of above-mentioned insertion sheet 42, and the end of the guide plate 48 on the base plate 18 horizontal sides and the end of guide plate 46 link into an integrated entity by brace 68.

Lug 50 and pilot hole 56 relatively are formed on the guide plate 48 along the thickness direction of base plate 18 and the lug 50 and the pilot hole 56 of guide plate 46.But do not form locking board 58 on the guide plate 48, replace, with the end of the longitudinal wall 30 opposite sides of guide plate 48 on form sliding guide piece 70.

Sliding guide piece 70 is the plate-like portions that stretch out from guide plate 48, its laterally (with base plate 18 laterally be equidirectional) pars intermedia form the pilot hole 72 of narrow slit shape, this pilot hole 72 with perpendicular to base plate 18 laterally and the direction of thickness direction both direction be that it is vertical.

On the other hand, expelling means 74 is located between guide plate 46 and the guide plate 48.It is its block longitudinally expelling means main body 76 that expelling means 74 has with the horizontal of base plate 18.The gauge of expelling means main body 76 is more a little bit smaller slightly than the interval between guide plate 46 and the guide plate 48, and thus, expelling means main body 76 is subjected to the restriction of guide plate 46,48 along the displacement of base plate 18 thickness directions.

Prerotation vane 78 is formed on expelling means main body 76 and end faces longitudinal wall 30 opposite sides.The width dimensions of prerotation vane 78 is more a little bit smaller slightly than the A/F of above-mentioned pilot hole 72, and inserts in the pilot hole 72.Thus, the direction of displacement of expelling means main body 76 only limits to the vertical of pilot hole 72.

Being approximate right angle leg-of-mutton protruding 80 in plane gives prominence on the end face of longitudinal wall 30 sides that are formed on expelling means main body 76.The inclined-plane 82 of projection 80 is corresponding with the inclined plane part 84 on the horizontal other end of the insertion sheet 42 that is formed on tongue piece 34, the insertion sheet 42 that passes peristome 32 and enter housing 12 inside inserts between the guide plates 46,48, the end face of longitudinal wall 30 sides of its front end side contacts expelling means main body 76 of 82, inclined plane part 84 contact inclined-planes 82 simultaneously on the inclined-plane.

Spring support chip 86 is located on the side opposite with the longitudinal wall 30 of expelling means main body 76.Spring support chip 86 is formed on the transversely elongated bulk of base plate 18, and this spring support chip 86 is being fixed on the buckle main body 44 on the guide plate 46.

This spring fixed lobe 88 is towards expelling means main body 76 1 side-prominent being formed on the spring support chip 86, and from compression disc spring, an end that promptly ejects spring 90 inserts the inboard of ejecting spring 90, to keep ejecting spring 90.

Spring fixed lobe 92 and this spring fixed lobe 88 relatively form highlightedly from the end face of spring support chip 86 1 sides of expelling means main body 76.Spring fixed lobe 92 is from the inboard that spring 90 is ejected in another distolateral insertion of ejecting spring 90, to keep ejecting spring 90.Because above-mentioned spring support chip 86 is fixed on the buckle main body 44, therefore ejecting spring 90 pushes expelling means 74 to longitudinal wall 30 1 sides.

On the other hand, the inboard of housing 12 is provided with the releasing sheet 94 as cancel system.Remove sheet 94 and have a pair of releasing plate 96,98.Removing plate 96 formation is its elongated plate-like longitudinally with the horizontal of base plate 18, and can be along the horizontal slip of base plate 18 between base plate 18 and guide plate 46.Relative therewith, it is its elongated plate-like longitudinally that releasing plate 98 similarly also forms with the horizontal of base plate 18 with releasing plate 96, and can be along the horizontal slip of base plate 18 between guide plate 48 and upper wall 24.

Above-mentioned releasing plate 96,98 separately longitudinally pressurized 100 of an end link into an integrated entity.With add compressing tablet 100 forms essentially rectangular accordingly on above-mentioned sidewall 26 opening portion 102.And then, the retaining hole 104 of the essentially rectangular of the relative opening of formation on above-mentioned releasing plate 96,98.

Above-mentioned retaining hole 104 forms accordingly with above-mentioned pilot hole 56, and at the thickness direction of base plate 18, retaining hole 104 is relative with pilot hole 56.Be provided with locking piece 106 between the above-mentioned retaining hole 104 as locking mechanism.

Locking piece 106 form thickness direction with base plate 18 be its vertically, laterally be its horizontal bulk with base plate 18.Locking piece 106 with its longitudinally mid portion running through each pilot hole 56 of guide plate 46,48.

Herein, above-mentioned retaining hole 104 is along the horizontal opening size of the base plate 18 longitudinal size much shorter than pilot hole 56.Therefore, remove sheet 94 and move if make to one distolateral (the adding the opposite side of a side of compressing tablet 100) of base plate 18 thickness directions with formation, the locking piece 106 that then is held the inwall pushing in hole 104 is guided in pilot hole 56, and with removing the end that sheet 94 is displaced to base plate 18 thickness directions.

In addition, except the active force that ejects spring 90, there be not other external force to act under the state on the expelling means 74, along with the displacement of removing sheet 94, above-mentioned protruding 80 are positioned on the deformation trace of locking piece 106, another end face different with inclined-plane 82, be the horizontal end that adds compressing tablet 100 1 sides of blocking surface 108 contact locking piece 106, thereby limited locking piece 106 to the displacement that adds compressing tablet 100 1 sides.

And then, corresponding with locking piece 106, the notch 110 of formation essentially rectangular on another horizontal end of above-mentioned insertion sheet 42.The width dimensions of notch 110 openings is greater than the gauge of locking piece 106, and locking piece 106 can enter the inboard of notch 110.Like this, enter at locking piece 106 under the state of inboard of notch 110, will extract from housing 12 if insert sheet 42, then locking piece 106 blocks the inwall of notch 110, and restriction is inserted sheet 42 and moved to the direction of extracting from housing 12.

And the bottom of notch 110 is than the above-mentioned blocking surface 108 more close compressing tablets 100 that add, and under the active force effect of locking spring 112, removed the locking piece 106 that stops and enter notch 110 from blocking surface 108 and has been displaced to from blocking surface 108 and adds compressing tablet 100.

On the other hand, form spring fixed lobe 92 from the above-mentioned face that adds brace 68 1 sides of compressing tablet 100.And then the locking spring 112 that is made of compression disc spring is located at and adds between compressing tablet 100 and the brace 68.Spring fixed lobe 114 inserts from an end of locking spring 112, keeps locking spring 112.

The other end and brace 68 crimping of locking spring 112 will add compressing tablet 100 (promptly removing sheet 94) and push to make and add the direction that compressing tablet 100 leaves brace 68.Act in the state of removing on the sheet 94 in the external force of the active force that does not resist this locking spring 112, the locking piece 106 that is located between the retaining hole 104 relatively is located on the position of retaining hole 104 along the direction of insertion and the inclined plane part 84 of the insertion sheet 42 by peristome 32.

And then, in a side opposite with the longitudinal wall 30 of removing sheet 94, and than setting up maintaining part 116 on the base plate 18 that adds compressing tablet 100 more close brace 68 1 sides.Maintaining part 116 in the form of a substantially rectangular frame shape in plane as elastomeric element, is construed as limiting the inboard that vertical base portion of the margining tablet 118 of mechanism inserted and remained on maintaining part 116.

As shown in Figure 5, the wall of margining tablet 118 is very thin, is formed by the leaf spring of elongated plate-like, and its front is near removing sheet 94, and suitably crooked, and and with the end crimping of longitudinal wall 30 opposite sides of removing plate 96.With the front end of this margining tablet 118 accordingly with the end of longitudinal wall 30 opposite sides of removing plate 96 on form joint portion 120.

Joint portion 120 is the elongated plate-like portions from stretching out with the end of longitudinal wall 30 opposite sides of removing plate 96.When blocking surface 108 stops locking piece 106, the preceding end in contact of joint portion 120 and margining tablet 118.But, if remove sheet 94 to a vertical end of removing plate 96, if promptly slide guage is quantitatively to a side that adds compressing tablet 100, then remove with the relative status of margining tablet 118 joint portion 120, margining tablet 118 is than the front (opposition side that promptly adds compressing tablet 100) of joint portion 120 more close releasing plates 96, and plate 96 is removed in contact.Set the length of joint portion 120 and form the position, so that it is corresponding from the depth dimensions of the sliding stroke of the contact condition of margining tablet 118 and the joint portion 120 releasing sheet 94 till the relative status of removing above-mentioned joint portion 120 and margining tablet 118 and notch 110, as shown in Figure 4, touch the bottom of notch 110 up to the locking piece 106 that enters notch 110 inboards, slide if remove sheet 94, then remove the relative status of joint portion 120 and margining tablet 118.

And, on upper wall 24, form the open-work 122 of rectangle accordingly with the leading section of margining tablet 118.The leading section of margining tablet 118 enters in the open-work 122, can make margining tablet 118 strains, up to the inwall that touches with the open-work 122 of longitudinal wall 30 opposition sides.

The following describes the effect and the effect of this buckle device 10.

As shown in Figure 2, in this buckle device 10, break away from the state of housing 12, run through peristome 32, insert in the housing 12, then insert sheet 42 and insert between the guide plate 46,48 in case insert sheet 42 from tongue piece 34.Insert the inclined plane part 84 contact locking pieces 106 of the insertion sheet 42 between the guide plate 46,48.

Under this contact condition, continuation will be inserted sheet 42 and be inserted in the housings 12, inclined plane part 84 along base plate 18 laterally to a side compression locking piece 106 opposite with adding compressing tablet 100.The active force of this pressure antagonism locking spring 112, locking piece 106 along with remove sheet 94 along base plate 18 laterally, to a side displacement opposite with adding compressing tablet 100, locking piece 106 is removed stopping from blocking surface 108 thus.

Then, if continuing to insert sheet 42 from this state inserts in the housing 12, then as shown in Figure 3, under the thrust of locking spring 112, the end crimping that locking piece 106 is horizontal with inserting sheet 42, continuation will be inserted sheet 42 and be inserted in the housing 12, along base plate 18 laterally, if it is relative with locking piece 106 to insert the notch 110 of sheet 42, as shown in Figure 4, the thrust of locking spring 112 makes removes sheet 94 displacements, and locking piece 106 enters in the notch 110.

Thus, limited tongue piece 34 to extract moving of the direction of inserting sheet 42 from housing 12, the leading section of safety belt is connected with the regulation position of vehicle by this buckle device 10.

As mentioned above, under the state of inclined plane part 84 contact locking pieces 106, continuation will be inserted sheet 42 and be inserted in the housing 12, insert the preceding end in contact expelling means main body 76 of sheet 42.Continue to insert sheet 42 and insert in the housing 12 under this state, expelling means 74 slides to the opposition side of longitudinal wall 30.Thus, eject spring 90 and be compressed, expelling means 74 increases to the active force that longitudinal wall 30 sides apply.

Under the state that moves with above-mentioned locking piece 106 restriction tongue pieces 34, locking piece 106 stretches in the notch 110 up to the bottom that contacts notch 110.Under this state, removed the relative status of margining tablet 118 with joint portion 120, the preceding end in contact of margining tablet 118 is removed plate 96, and then along removing the vertical of plate 96, margining tablet 118 is relative with joint portion 120.

If under this state, under the effect of the external force (vibration when for example vehicle is advanced etc.) that can resist the active force that locks spring 112, remove the active force of sheet 94 antagonism locking springs 112, will be to front (being the right side of Fig. 4) displacement of removing plate 96, then joint portion 120 can be restricted stopping of sheet 118.Thus, limited of the displacement of releasing sheet 94 to the front of removing plate 96.

On the other hand, when extracting tongue piece 34 from housing 12, first of at first will be than the diameter of open-work 122 littler bar-shaped or elongated plate-like is removed the parts (not shown) and is inserted open-work 122, and first front end of removing parts and margining tablet 118 is buckled.Then as shown in Figure 5, under this state, the elasticity of opposing margining tablet 118 makes the front displacement of margining tablet 118, removes along the relative status of the joint portion longitudinally 120 of removing plate 96 with margining tablet 118.By removing the relative status of joint portion 120 and margining tablet 118, under the effect of locking spring 112, the motion track of the joint portion 120 of margining tablet 118 when removing sheet 94 displacements breaks away from.

Then, keep margining tablet 118 state that 120 motion track breaks away from from the joint portion, simultaneously the diameter of the ratio open portion 102 second releasing parts littler or elongated plate-like are inserted from peristome 102, antagonism locks the active force of spring 112, compresses to add compressing tablet 100.

As mentioned above, under this state, 120 motion track breaks away from because margining tablet 118 is from the joint portion, so joint portion 120 no longer is restricted stopping of sheet 118.Thus, removed the thrust that adds compressing tablet 100 (removing sheet 94) antagonism locking spring 112 that parts compress by second and move.

Move in case remove sheet 94, locking piece 106 moves with removing sheet 94, and locking piece 106 is extracted from notch 110.After locking piece 106 is extracted from notch 110, the restriction of moving of 106 pairs of tongue pieces 34 of locking piece is removed immediately, the active force of the ejection spring 90 that is subjected to by expelling means 74 will insert sheet 42 presses to the direction of extracting from housing 12, and this insertion sheet 42 is moved.

Thus, the mechanical connection power between the leading section of safety belt and the vehicle specifies position has been removed, can be with seat belt winding on for example not shown tape winding apparatus.

As mentioned above, in this buckle device 10, under the state that moves with locking piece 106 restriction tongue pieces 34, if can resist the external force (vibration when for example vehicle is advanced etc.) of the thrust of locking spring 112 acts on the releasing sheet 94, want displacement even remove the active force of sheet 94 antagonism locking springs 112, margining tablet 118 still can stop joint portion 120, the displacement of restriction cancellation sheet 94.

Claims (10)

1, a kind of buckle device, comprise apparatus main body, locking mechanism, cancel system and limiting mechanism, said apparatus main body mechanical connection is on the regulation position of vehicle, and the tongue piece of the leading section of the banded safety belt of fixed length inserts from the front of apparatus main body simultaneously; Above-mentioned locking mechanism is located at the aforementioned means body interior, limits aforementioned tongue piece and moves to the direction of extracting from aforementioned apparatus main body by buckling with aforementioned tongue piece, and aforementioned tongue piece mechanically is connected on the aforementioned means main body; Above-mentioned cancel system is located at the aforementioned means body interior, by removing aforementioned locking mechanism buckling aforementioned tongue piece to the displacement of removing direction; Under the state that aforementioned locking mechanism and aforementioned tongue piece buckle, above-mentioned limiting mechanism and aforementioned cancel system buckle, and limit aforementioned cancel system to the displacement of aforementioned releasing direction.

According to the buckle device described in the claim 1, it is characterized in that 2, from the direction that intersects with aforementioned releasing direction, aforementioned limitations mechanism and aforementioned cancel system form and buckle.

According to the buckle device described in the claim 2, it is characterized in that 3, the margining tablet of being made up of the tabular or bar-shaped spring members that applies active force to aforementioned cancel system side constitutes the front relative with end side of aforementioned limitations mechanism.

4, according to the buckle device described in the claim 1, it is characterized in that, aforementioned tongue piece insert the aforementioned means main body and the state that buckled by aforementioned locking mechanism under, make aforementioned limitations mechanism from the buckling of aforementioned cancel system disengaging, keep buckle releasing in, aforementioned cancel system is moved, make aforementioned locking mechanism from the buckling of tongue piece disengaging, allow aforementioned tongue piece to move thus to the direction of from aforementioned apparatus main body, extracting.

According to the buckle device described in the claim 4, it is characterized in that 5, from the direction that intersects with aforementioned releasing direction, aforementioned limitations mechanism and aforementioned cancel system form and buckle.

According to the buckle device described in the claim 5, it is characterized in that 6, the margining tablet of being made by the tabular or bar-shaped spring members that applies active force to aforementioned cancel system side constitutes the front relative with end side of aforementioned limitations mechanism.

7, according to the buckle device described in the claim 6, it is characterized in that, the leading section of aforementioned limitations sheet enters the inboard of the open-work on the housing that is located at the aforementioned means main body, makes aforementioned limitations sheet strain, up to the inwall that touches the aforementioned open-work relative with it.

8, according to the buckle device described in the claim 7, it is characterized in that, first removes parts inserts in the aforementioned open-work, and buckle with the leading section of aforementioned limitations sheet, the elasticity of antagonism aforementioned limitations sheet, the leading section that makes the aforementioned limitations sheet is along aforementioned open-work displacement, thus make aforementioned limitations mechanism from the buckling of aforementioned cancel system disengaging.

9, the buckle device described in according to Claim 8, it is characterized in that, second removes parts inserts in the peristome on the housing that is located at the aforementioned means main body, resist the active force of locking spring mounted thereto, compress aforementioned cancel system, and move it, make thus aforementioned locking mechanism from the buckling of aforementioned tongue piece disengaging.

10, according to the buckle device described in the claim 6, it is characterized in that, set the length of aforementioned joint portion and form the position, make aforementioned tongue piece insert the aforementioned means main body, locking piece and aforementioned cancel system corresponding actions as aforementioned locking mechanism, enter in the notch that is formed on the aforementioned tongue piece, in case touch the bottom of aforementioned notch, then with respect to being formed on as the joint portion on the releasing sheet of aforementioned cancel system, the aforementioned limitations sheet is in non-relative status, limits aforementioned releasing sheet to the displacement of aforementioned releasing direction.

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