KR20240010900A - Vehicle sensor device and seat belt retractor with the same - Google Patents

Abstract

It relates to a vehicle sensor device and a seat belt retractor to which the same is applied, comprising a body forming an external shape, a cover coupled to an open surface of the body, an installation angle of the body inside the body, and a change in inclination of the mounting object. A sensor housing rotatably installed, a moving member that flows inside the sensor housing according to changes in inclination and acceleration of the vehicle, a sensor lever rotatably coupled to the sensor housing to rotate according to the flow of the moving member, and the sensor lever. and a pilot lever that is coupled to or separated from the steering disk by linearly reciprocating by the rotation of the sensor lever inside the sensor housing and allows the seat belt webbing to move in and out, and the steering disk and the pilot lever are connected to each other. By providing a configuration including a lock canceller lever that rotates the steering disk by releasing the contact, the locking of the incoming and outgoing motion of the seat belt webbing can be released in a specific section depending on the purpose of use.

Description

Vehicle sensor device and seat belt retractor to which it is applied {VEHICLE SENSOR DEVICE AND SEAT BELT RETRACTOR WITH THE SAME}

The present invention relates to a seat belt retractor, and more specifically, to a vehicle sensor device that detects changes in inclination and acceleration of a vehicle to prevent seat belt webbing from being pulled out, and a seat belt retractor to which the same is applied.

Generally, vehicles are equipped with seat belt devices on seats to ensure the safety of occupants.

The seat belt device includes a seat belt retractor that operates to wind or withdraw a strip-shaped seat belt webbing (hereinafter referred to as 'webbing') that secures the occupant to a spool, and a tongue fixed to one end of the webbing that is detachable. It consists of a buckle that can be inserted.

The seat belt retractor prevents an occupant wearing a seat belt from being thrown forward or leaving the seat due to driving inertia, etc. during a sudden stop or sudden acceleration due to a vehicle accident, etc. This seat belt retractor allows the webbing to be pulled out under normal conditions when the seat belt is worn, but when a change in the inclination or acceleration of the vehicle is detected due to a vehicle collision, etc., it suppresses further pulling out of the webbing, and prevents webbing from loosening or sagging. That is, it may include an emergency tensioning device and a pre-tensioning device that reduce slack.

For example, Patent Document 1 and Patent Document 2 below disclose seatbelt retractor technology that controls the retraction and withdrawal operations of seatbelt webbing.

Such a seat belt retractor may be mounted on a vehicle body, for example, a center pillar of a vehicle, a seat backrest, a rear pillar, etc. Accordingly, the mounting posture of the seat belt retractor can be changed in various ways depending on the structure of the center pillar, seat backrest, rear pillar, etc. That is, the seat belt retractor is not always mounted in a horizontal state, but may be mounted tilted at a certain angle from the horizontal state in the left-right direction or in the front-back direction.

Recently, seats installed in vehicles are manufactured to be slim by designing the thickness of the backrest in the front and rear directions (hereinafter abbreviated as 'thickness') to be thin. These slim seats are sometimes equipped with an integrated seat belt (Belt In Seat, BIS) device that is integrated with the seat.

In particular, seats used in self-driving cars are being developed so that they can rotate left and right, and the backrest can be rotated backwards up to 180°.

The seat belt retractor according to the prior art is fixed to the installation target, that is, the backrest of the seat or the car body, and the direction of the webbing is always fixed.

In other words, the seatbelt retractor applied to the integrated seatbelt device has a spindle installed on the seat backrest in the left and right direction of the car, that is, parallel to the axial direction of the backrest, and as the length of the webbing wrapped around the spindle increases, the seatbelt retractor The front-to-back width of the tractor increases.

For this reason, the seat belt retractor according to the prior art requires a mounting space corresponding to the maximum width of the webbing wrapped around the spindle, which can be a factor that makes it difficult to slim the seat.

Therefore, there is a need for the development of seat belt retractor technology that can be applied even in cases where the mounting space for the seat belt retractor is limited, such as a slim seat, and can guarantee the retraction and withdrawal performance of the webbing.

Additionally, the vehicle sensor of the seat belt retractor according to the prior art measures the inclination of the vehicle by applying a gimbal with weight inside.

These vehicle sensors can measure the inclination of the vehicle even if the angle of the backrest provided on the seat changes.

However, in the seat belt retractor according to the prior art, when the rotation angle of the seat on which the seat belt retractor is installed, for example, the backrest, exceeds a certain angle range, the sensor lever connected to the gimbal does not control the pilot lever, so normal operation is not possible. There was a problem that made it impossible.

Therefore, there is a need for the development of a seat belt retractor equipped with a vehicle sensor that can expand the angle range in which normal operation is possible by minimizing the abnormal operating range due to the rotational motion of the backrest.

U.S. Patent No. 6,499,554 (registered on December 31, 2002) U.S. Patent No. 6,443,382 (registered on September 3, 2002)

The purpose of the present invention is to solve the problems described above and to provide a vehicle sensor device that detects changes in inclination and acceleration of a vehicle and a seat belt retractor to which the same is applied.

Another object of the present invention is to provide a vehicle sensor device capable of unlocking the retraction and withdrawal operations of seat belt webbing in a specific section depending on the purpose of use, and a seat belt retractor to which the same is applied.

Another object of the present invention is to provide a vehicle sensor device that can be installed in a narrow space by reducing its volume and a seat belt retractor to which the same is applied.

In order to achieve the above-described object, the vehicle sensor device according to the present invention includes a body forming an external shape, a cover coupled to an open surface of the body, an installation angle of the body inside the body, and an inclination of the mounting object. A sensor housing rotatably installed based on changes, a moving member that flows inside the sensor housing according to changes in inclination and acceleration of the vehicle, and a sensor lever rotatably coupled to the sensor housing to rotate according to the flow of the moving member. , a pilot lever that is coupled to the sensor lever and reciprocates in a straight line by the rotation of the sensor lever inside the sensor housing to engage or separate from the steering disk, and the seat belt webbing is capable of retracting and withdrawing operations, the steering disk and It includes a rock canceller lever that rotates the steering disk by releasing contact with the pilot lever, and the pilot lever is disposed in a horizontal state between the body and the sensor housing and uses an inclined structure to control the rock canceling lever. It is characterized in that it is separated from the steering disk by a rotating operation.

In addition, in order to achieve the above-mentioned object, the seat belt retractor to which the vehicle sensor device according to the present invention is applied includes a vehicle sensor device that detects changes in inclination and acceleration of the vehicle and a spindle on which the seat belt webbing is wound. It includes a module and is characterized in that it linearly reciprocates to engage or release the pilot lever from the steering disk while maintaining it horizontal based on the sensed change in inclination and acceleration of the vehicle.

As described above, according to the vehicle sensor device according to the present invention and the seat belt retractor to which the vehicle sensor device is applied, the vehicle sensor device is configured to move normally in a straight line while maintaining the pilot lever horizontal, regardless of the rotation angle of the mounting object on which it is installed. The effect of being able to control is achieved.

That is, according to the present invention, a sensor lever and a moving member are installed inside the sensor housing, and the sensor lever coupled to the sensor housing is rotated by the movement of the ball according to the change in inclination and acceleration of the vehicle, thereby forming a pilot connected to the sensor lever. The effect of being able to move the lever in a straight line back and forth is obtained.

And according to the present invention, the effect of being able to unlock the retraction and withdrawal operations of the seat belt webbing in a specific section depending on the purpose of use is obtained.

In particular, according to the present invention, by applying an inclined structure to the pilot lever, the effect of maintaining the pilot lever horizontal even when the sensor housing is rotated is obtained.

As a result, according to the present invention, by maintaining the pilot lever horizontally, the effect of uniformly providing locking performance through contact and engagement with the steering disk is obtained.

1 is a perspective view of a seat belt retractor to which an emergency tensioning module is applied according to a preferred embodiment of the present invention;
Figure 2 is a perspective view of the seat belt retractor shown in Figure 1 from another angle;
Figure 3 is a view showing the seat belt retractor shown in Figure 1 installed on the seat of a car;
4 is a perspective view of a vehicle sensor device according to a preferred embodiment of the present invention;
Figure 5 is a perspective view showing the structure of the vehicle sensor device shown in Figure 4 with the body and cover separated;
Figure 6 is an exploded perspective view of the vehicle sensor device shown in Figure 5;
Figure 7 is an enlarged view of some of the configurations shown in Figure 6;
8 and 9 are diagrams showing the operating state of the vehicle sensor device, respectively;
Figure 10 is a diagram showing the operating states of the pilot lever and the rock canceller lever.

Hereinafter, a vehicle sensor device according to a preferred embodiment of the present invention and a seat belt retractor to which it is applied will be described in detail with reference to the attached drawings.

FIG. 1 is a perspective view of a seat belt retractor to which an emergency tensioning module is applied according to a preferred embodiment of the present invention, FIG. 2 is a perspective view of the seat belt retractor shown in FIG. 1 from another angle, and FIG. 3 is FIG. 1 This is a diagram showing the seat belt retractor shown in is installed on the seat of a car.

Figure 3(a) shows a front view of the sheet, and Figure 3(b) shows a rear view of the sheet.

Hereinafter, the direction toward which the steering wheel is facing based on the car's seat is referred to as 'forward (F)', and the opposite direction is referred to as 'rear (B)'. And terms indicating directions such as 'left (L)', 'right (R)', 'upward (U)' and 'downward (D)' are based on the front (F) and back (B) above. It is defined as indicating each direction.

As shown in Figures 1 to 3, the seatbelt retractor 10 to which the emergency tensioning module according to a preferred embodiment of the present invention is applied has seatbelt webbing (hereinafter abbreviated as 'webbing') 21 wound. It may include a spindle module 20, a sensor module 30 that detects changes in inclination and acceleration of the vehicle, and an emergency tensioning module 40 that reduces slack by winding the webbing 21 in the event of a vehicle collision.

Additionally, the seat belt retractor may include a pre-tensioning module 50 and an additional function module that smoothly withdraws the webbing 21 during normal driving of the vehicle and reduces slack by winding the webbing 21 just before a collision occurs.

In this embodiment, each part applied to the seat belt retractor 10 is manufactured by modularizing each functional block and selectively combining each modularized part.

For example, the seat belt retractor 10 can be assembled by selectively combining the spindle module 20, the sensor module 30, the emergency tensioning module 40, the pre-tensioning module 50, and the additional function module. You can.

The additional function module includes a load control module 60 that adjusts the load acting on the webbing 21 according to the physique condition or weight of the rider, and a spindle module (60) that mechanically connects each module to control the force generated when each module is driven. It may include one or more of the connection modules 70 transmitted to 20).

For example, the spindle module 20 is provided as a high level load limiter to provide a relatively large high load to the spindle 22 when the occupant seated in the corresponding seat is a relatively heavy adult male. 1 A limiter 25 may be provided.

In addition, the load control module 60 is provided as a low level load limiter that provides a relatively small low load to the spindle 22 when the occupant seated in the corresponding seat is a relatively light woman or child. 2 Limiters 61 may be provided.

The connection module 70 functions to connect each module to each other so that the force generated from each module, for example, the emergency tensioning module 40 and the pre-tensioning module 50, is transmitted to the spindle module 20.

For example, the connection module 70 may include a plurality of gears connected to the drive shaft of each device, a plurality of rotation shafts on which each gear is installed, and a housing that shields the outer surfaces of each gear and the rotation shaft.

The spindle module 20 and the sensor module 30 are basic modules that make up the seat belt retractor 10. As shown in FIG. 2, they can be manufactured and assembled as individual modules, or integrated into one module. It may be possible.

The sensor module 30 may be provided as a vehicle sensor device including an acceleration sensor that detects a change in acceleration of the vehicle and a tilt sensor that detects a change in inclination of the vehicle.

In this embodiment, it is explained that both the tilt and acceleration changes of the vehicle are detected using the sensor module 30.

The spindle module 20 is provided with a spindle 22 on which webbing 21 is wound on the outer surface.

The spindle module 20 may operate to wind the webbing 21 when a change in the inclination or acceleration of the vehicle occurs due to a vehicle collision.

This spindle module 20 may be combined with the sensor module 30 to further provide a function of only retracting webbing in a certain section to secure a child seat.

Hereinafter, the direction in which the webbing 21 is drawn out is set to upward (U), and the direction in which the spindle 22 is mounted is set to the forward and backward directions (F, B).

In this embodiment, in order to be mounted on a slimmed down seat, the thickness of the seat belt retractor 10, that is, the front-to-back width, is minimized.

For example, in this embodiment, each module may be manufactured with a thickness smaller than the thickness of the spindle module 20 based on the thickness of the spindle module 20, that is, the front-to-back width.

And each module is arranged around the spindle module 20 on the side of the spindle module 20, that is, on the right or left, or on the top or bottom of the spindle module 20.

That is, as shown in Figures 1 and 2, the pre-tensioning module 50 is disposed on the left side of the spindle module 20, and the sensor module 30 and the emergency tensioning module are placed on the right side of the spindle module 20. (40) can be arranged up and down.

Of course, the present invention is not necessarily limited to this.

For example, the sensor module 30 and the emergency tensioning module 40 may be placed on the right side of the spindle module 20, and the pre-tensioning module 50 may be placed below the spindle module 20.

Alternatively, the pre-tensioning module 50 is disposed on the left or right side of the spindle module 20, and the sensor module 30 and the emergency tensioning module 40 are connected to the spindle module 20 and the pre-tensioning module 50. It may be placed at the bottom of .

Therefore, in this embodiment, the remaining modules except the spindle module 20, that is, the sensor module 30, the emergency tensioning module 40, the pre-tensioning module 50, and the additional function modules 60 and 70, are the spindle modules 60 and 70. It is arranged radially along the circumferential direction on the outer surface of the spindle 22 with the spindle module 20 having (22) as the axis.

And the remaining modules are connected to each other through a driving gear and connection module 70 installed on one or both sides and transmit power to the spindle 22.

Accordingly, the drive axes of the remaining modules may be arranged parallel or at right angles to the spindle 22.

Of course, in this embodiment, some of the modules described above, for example, the print tensioning module 50, may be excluded, or additional function modules may be assembled in combination, depending on the needs of the vehicle specifications, specifications of the seat belt retractor 10, etc. You can.

And in this embodiment, the remaining modules except the spindle module 20 maintain the front-to-back width of the seat belt retractor 10 mounted on the backrest 12 of the seat 11 constant, as shown in FIG. 3. So that it is manufactured to the same thickness as the spindle module 20 or to a thickness smaller than the thickness of the spindle module 20.

In this way, in the present invention, as the remaining modules except for the spindle module are arranged radially along the circumferential direction with respect to the spindle, the amount of winding (or loading amount) and thickness of the seat belt webbing wound around the spindle are changed from the seat belt retractor to the spindle. It can be configured so as not to affect the width of the installed front-to-back direction.

Therefore, the seat belt retractor 10 manufactures the thickness of each module to a minimum thickness, and arranges the remaining modules radially along the circumferential direction on the outer surface of the spindle based on the spindle module 20, so that the front and rear of the seat belt retractor It can be manufactured slim by minimizing the direction width.

Accordingly, the present invention can be installed in a narrow space by minimizing the overall volume of the seat belt retractor.

Additionally, each combined module may be arranged side by side or at a right angle so that all axes provided in each module face the same direction, for example, front-to-back direction.

Therefore, like the connection module 70 described above, each module can be configured to continuously transmit or receive power using a power transmission unit such as a gear, chain, or belt.

Meanwhile, the emergency tensioning module 40 functions to wind the webbing 21 around the spindle 22 using the pressure of the gas generated by operating the inflator with gunpowder in response to a detection signal that detects a vehicle collision. . Therefore, the emergency tensioning module 40 can reduce the slack of the webbing 21 by winding the webbing 21 in the event of a vehicle collision, thereby reducing the number of injuries to passengers.

The pre-tensioning module 50 functions to wind the webbing 21 around the spindle 22 by driving a motor capable of forward and reverse rotation when a collision of the vehicle is predicted through a sensor applied to the vehicle. That is, the pre-tensioning module 50 keeps the worn webbing 21 taut until a stronger acceleration or deceleration of the vehicle occurs without an accident under normal driving conditions and prevents the webbing 21 from becoming loose. In order to prevent this possibility, it is possible to reduce the slack of the webbing 21 by wrapping the webbing 21 just before a vehicle collision, thereby reducing the number of injuries to passengers.

Meanwhile, as shown in FIGS. 1 and 2, first and second brackets 23 and 24 that are coupled to each other and function as the housing 23 may be coupled to the front and rear sides of the spindle module 20, respectively. In addition, a pull-out space 25 into which the webbing 21 is pulled out may be provided on one side of the first and second brackets 23 and 24, that is, at the lower left side.

The first bracket 23 may be placed on the front side of the spindle module 20, and the second bracket 24 may be placed on the rear side of the spindle module 24.

The first bracket 23 may be formed in a substantially disk-shaped or polygonal-plate shape to correspond to the front surface of the spindle module 20.

The second bracket 24 may be formed in a substantially circular or polygonal ring shape to correspond to the rear surface of the spindle module 24. That is, an installation hole 241 may be formed in the center of the second bracket 24 into which the spindle gear disposed on the rear side of the spindle 22 is installed. And, an elastic module 27 that provides elastic force to the spindle 22 may be coupled to the rear of the second bracket 24.

The pull-out space 26 is provided with a webbing guide 28 that guides the webbing being drawn into or pulled out from the spindle 22, and a pair of guide frames are provided at the top and bottom of the pull-out space 26, respectively. (29) is provided, and a bracket coupling portion coupled to the second bracket 24 may be provided at the rear end of each guide frame 29.

The webbing guide 28 guides the webbing 21 to be smoothly drawn in or out through a rotational motion when the webbing 21 is pulled in or out, and adjusts the pull-out space 26 into which the webbing 21 is pulled in or out. It has the function of

For this purpose, the webbing guide 28 is installed along the front-back direction in the same manner as the spindle 22, and includes a rotating member 281 whose both ends are rotatably coupled to the first and second brackets 23 and 24, and both ends thereof. It may include a rotation pin 282 rotatably coupled to the inside of both ends of the rotation member 281. Of course, the present invention is not necessarily limited to this, and the rotary member 281 and the rotary pin 282 may be provided integrally to adjust the withdrawal angle and direction of the webbing 21 in various ways.

The bracket coupling portion may be formed in a substantially circular or polygonal ring shape to correspond to the cross-sectional shape of the second bracket 24. That is, an installation hole into which the spindle gear is installed may be formed in the center of the bracket coupling portion.

This bracket coupling part can be firmly coupled to the second bracket 24 in various ways, such as bolting or welding, using a plurality of fastening protrusions protruding outward while the edges of the second bracket 24 are in contact with each other. there is.

A pair of guide frames 29 may provide a stopper function that limits the maximum angle at which the webbing guide 28 can rotate upward and downward.

Therefore, the front-to-back width of the entire seat belt retractor 10 is the distance between the first and second brackets 23 and 24 disposed on both sides of the spindle module 20, or the distance between the first bracket 23 and the second bracket ( It may be limited to the distance between the outer plates of the elastic module 27 mounted on 24).

In this way, the present invention minimizes the front-to-back width of the entire seat belt retractor, thereby reducing the space required for installation, making it possible to install it even in a narrow space.

In this embodiment, as shown in FIG. 3, the configuration of the seat belt retractor 10 installed on the driver's seat side will be described. However, the seat belt retractor 10 according to the present invention can be installed not only on the driver's seat side, but also on the driver's seat side, without changing the configuration. It should be noted that it can also be applied to the passenger seat.

The worker sews one end of the webbing 21 into an approximately circular shape so that it can be wrapped once around the inner wall formed inside the spindle 22 and the overlapping portions. Subsequently, the circular portion is coupled to the inner wall and fixed inside the spindle 22, and the other end of the webbing 21 is pulled out to the outside of the spindle 22.

The spindle module 20 assembled in this way is coupled to the front of the reference plate 80, and the sensor module 30, emergency tensioning module 40, and pre-tensioning module 50 are connected based on the spindle module 20. And additional function modules, such as the load limiting module 60 and the connection module 70, are sequentially assembled so that they can be connected to each other at pre-selected positions on the reference plate 80.

The seat belt retractor 10 assembled through this process is mounted on an object such as the backrest 12 of the seat 11 or a body panel, and when an emergency situation such as a collision occurs during the driving process of the car, the webbing The withdrawal operation of (21) is suppressed to restrain the occupants and protect them safely.

That is, as shown in FIG. 3, the seat belt device 100 to which the seat belt retractor 10 according to a preferred embodiment of the present invention is applied includes a strip-shaped webbing 21 and a seat 11 that secure the occupant. The seat belt retractor 10, which is mounted on the backrest 12 and retracts the webbing 21 when necessary, the belt tongue 110 installed on the drawn end of the webbing 21, and the belt tongue 110 are removable. It includes a buckle 120 that is inserted.

A mounting space 13 in which the seat belt retractor 10 is mounted may be provided on the backrest 12 of the seat 11.

The mounting space 13 is provided inside the backrest 12, and a guide member 14 is installed on one side of the mounting space 13 to guide the webbing pulled out from the spindle module 20 to the outside of the backrest 12. It can be.

The mounting space 13 may be provided at the rear upper part of the backrest 12.

Of course, in FIG. 3, the mounting space 13 is shown approximately at the center of the upper part of the backrest 12, but the present invention is not necessarily limited thereto, and is located at a certain distance downward from the upper end of the backrest 12. It may be formed, or may be formed deviated from the center of the backrest 12 to the left or right.

Additionally, the mounting space 13 may be provided in various locations on the vehicle body, such as a pillar, a vehicle body panel behind a seat, or the ceiling or floor of the vehicle body.

In this embodiment, a space in which the webbing 21 pulled out from the seat belt retractor 10 is disposed toward the guide member 14 may be in communication with one side of the mounting space 13 .

When applied to the top of one side of the backrest 12, for example, the driver's seat 11, the guide member 14 may be provided to partially cover the upper left side and the edge of the upper right side of the backrest 12.

Here, the webbing 21 is wrapped around the spindle 22 with both ends facing in the front-to-back direction, and is positioned on the backrest through the mounting space 13 and the arrangement space 15 where the drawn-out webbing 21 is changed and arranged at various angles. (12) It is pulled out to the outside, and the pulling direction can be changed by the guide member 14 so that both ends face approximately left and right directions.

For this purpose, the webbing 21 is provided with an autonomous webbing adjusting unit 211 whose withdrawal direction and withdrawal angle are adjusted between the mounting space 12 provided on the backrest 12 and the guide member 14 installed on the upper end of the backrest 12. ) may include.

That is, the autonomous webbing adjusting unit 211 is positioned between the spindle 22 and the guide member 14, that is, in the front-to-back direction within the arrangement space 15, so that both ends are oriented in the left-right or up-down direction. The direction in which the tractor 10 is pulled out is changed.

In addition, the autonomous webbing adjusting unit 211 adjusts the angle and direction drawn from the spindle 22 toward the guide member 14 depending on the position of the guide member 14, and the webbing 21 is adjusted to the seat 11. The angle and direction of the belt drawn from the backrest 12 toward the belt tongue 110 can be adjusted.

Meanwhile, in this embodiment, the configuration of the integrated seat belt device integrated with the backrest of the seat has been described, but the present invention covers not only the backrest of the seat, but also the vehicle body, such as a filler disposed on the side of the vehicle body, a vehicle body panel on the rear of the seat, and the vehicle body. It can be modified to be installed in various locations such as the roof or floor.

That is, the spindle 22 is arranged with its mounting direction set according to the mounting space 12 provided on the mounting object, and the seat belt retractor 10 is independent of the amount of webbing 21 wound around the spindle 22. Thus, the width along the mounting direction can be maintained constant.

In addition, according to the present invention, the installation direction and angle can be changed in various ways depending on the mounting object, and as a result, the direction and angle at which the seat belt webbing is pulled out can also be changed in various ways.

Next, the configuration of a vehicle sensor device according to a preferred embodiment of the present invention will be described in detail with reference to FIGS. 4 to 7.

FIG. 4 is a perspective view of a vehicle sensor device according to a preferred embodiment of the present invention, FIG. 5 is a perspective view showing a structure in which the body and cover of the vehicle sensor device shown in FIG. 4 are separated, and FIG. 6 is a perspective view of the vehicle sensor device shown in FIG. 5. It is an exploded perspective view of a vehicle sensor device, and FIG. 7 is an enlarged view of some of the configurations shown in FIG. 6.

As shown in FIGS. 4 to 6, the vehicle sensor device, that is, the sensor module, according to a preferred embodiment of the present invention includes a body 31 forming the outer shape, and a cover 32 coupled to one open surface of the body 31. ), a sensor housing installed inside the body 31 to be rotatable along the width direction of the body 31 according to changes in the installation angle of the body 31 and the inclination of the mounting object, and having an insertion hole 331 formed through the bottom. (33), a moving member 34 that flows inside the sensor housing 33 according to changes in the inclination and acceleration of the vehicle, rotatably coupled to the sensor housing 33 to rotate according to the flow of the moving member 34 a sensor lever (35); It is coupled to the sensor lever 35 and includes a pilot lever 36 that moves linearly back and forth by rotation of the sensor lever 35 inside the sensor housing 33.

The sensor housing 33 rotates along the width direction of the body 31 and maintains the coupled state of the sensor lever 35 and the pilot lever 36 even when the sensor lever 35 is rotated together with the sensor housing 33. It may include a holding part 37.

The body 31 is formed in a cylindrical shape that is open on one side and has a roughly square or triangular cross-section when viewed from the side. Bolts, etc. are fastened to the top and bottom of the body 31, respectively, to secure the body 31. A pair of fixing protrusions 311 for fixing to the spindle module 20 may be formed to protrude.

The sensor housing 33 may be rotatably coupled to the inside of the body 31, and a coupling portion 312 may be formed on one side, that is, the left side, of the body 31.

The coupling portion 312 is formed with a passage portion 313 through which the pilot lever 36 protrudes on the right side connected to the body 31, thereby supporting the body portion 361 of the pilot lever 36 to enable linear reciprocating movement. It functions.

A steering disk 81 whose rotational movement is selectively restricted by contact with the pilot lever 36 is installed on one side of the body 31, and a moving member 34 is rotatably installed on one side of the steering disk 81. It is done.

And a clutch lever 83 may be installed at one end of the body 31.

The clutch lever 83 has a flat plate portion 831 disposed so that the plate surface of the moving member 34 overlaps with the plate surface, and is formed to extend a predetermined length from one side of the flat plate portion 831 and is selectively connected to one lower side of the sensor housing 33. The sensor housing 33 may include an extension portion 832 that is in contact with the body 31 to maintain the vertical direction before the body 31 is tilted.

In addition, a spring cassette shaft 84 is fastened to the center of the steering disk 81, the moving member 34, and the clutch lever 83 and can be placed in close contact with them.

On one side of the cover 32, a coupling rib 321 is formed along the edge to protrude toward the body 31, and a coupling groove into which the coupling rib 321 is coupled may be formed to be stepped at the edge of the opening of the body 31. there is.

The body 31 and the cover 32 may be disposed inside the backrest 12 of the seat 11 along the direction in which the spindle 22 is installed, that is, the front-to-back direction, while being coupled to each other.

The sensor housing 33 is rotatably disposed in the internal space of the body 31 formed by combining the body 31 and the cover 32, and a moving member (to be described below) is located on the bottom of the sensor housing 33. An insertion hole 331 into which the protruding member 344 of 34 is inserted may be formed through.

In addition, a through hole 332 through which the pilot lever 36 can be installed to enable linear reciprocating movement may be formed at the right end of the sensor housing 33 facing the internal space of the body 31.

Additionally, teeth 333 may be disposed in a substantially arc-shaped lower portion of the sensor housing 33 that is in contact with the extension portion 317 of the clutch lever 83.

The sensor housing 33 is rotatably installed in the internal space of the body 31 and rotates according to a change in inclination of the vehicle or seat. The rotation angle of the sensor housing 33 is installed so that it can rotate in the range of +90° to -90°, assuming that the inclination when placed perpendicular to the bottom surface of the body 31 is 0°. .

The sensor housing 33 is rotatably installed in the internal space of the body 31, and when the vehicle is tilted on a slope or the backrest 12 is rotated rearward as desired according to the occupant's preference, the body 31 In the internal space, the sensor housing 33 always maintains a vertical state. According to the movement of the moving member 34, the pilot lever 36 is linked and moves in a straight line, so that the locking operation of the webbing 21 can always be performed accurately.

That is, in this embodiment, the sensor housing 33 is described as rotating, but in reality, the body 31 and the cover 32 rotate according to the rotation angle of the backrest 12, and the sensor housing 33 It is always maintained in a vertically arranged state due to the weight of the ball 345 provided in the moving member 34, which will be explained below.

To this end, the moving member 34 flows inside the sensor housing 33 according to changes in the vehicle's inclination and acceleration, so that the pilot lever 36 moves in an exact straight line and protrudes out of the sensor housing 33, thereby performing a locking operation. It functions to make this happen.

This moving member 34 includes a flat member 342 seated on the bottom of the sensor housing 33, a ring-shaped ring member 343 spaced apart from the flat member 342 at a certain distance to form a space 346, A support portion 341 composed of a protruding member 344 that protrudes from the lower surface of the flat member 342 and is inserted into the insertion hole 331, and floating protrusions 351 and 345 that are inserted and fixed into the ring member 343. may include.

The flat member 342 is seated on the upper part of the bottom of the sensor housing 33 to stably support the floating protrusions 351 and 345 at a certain height and to prevent them from interfering with the side of the sensor housing 33 when freely rotating. It may be formed in a disk shape.

The ring member 343 is arranged to be spaced apart from the upper surface of the flat member 342 at a certain distance along the height direction of the flat member 342, and there is a space between the upper surface of the flat member 342 and the lower surface of the ring member 343. (346) can be formed.

The sensor lever 35 is installed through this space 346, and floating protrusions 351 disposed in the space 346 may protrude from the upper and lower surfaces of the sensor lever 35. Therefore, the end of the sensor lever 35 can move up and down according to the flow of the moving member 34.

The ring member 343 may form a closed curve of approximately circular shape so that the ball 345 can be fixedly coupled thereto.

The protruding member 344 protrudes downward from the center of the lower surface of the flat member 342 by a certain length and may be inserted into the insertion hole 331 formed in the sensor housing 33. Therefore, the moving member 34 can be placed upright inside the sensor housing 33.

In addition, the diameter of the protruding member 344 is formed to be smaller than the diameter of the insertion hole 331 so that the moving member 34 can sense the change in inclination of the vehicle inside the sensor housing 33 and immediately react and flow. It is desirable.

The ball 345 is disposed in an installation space inside the sensor housing 33, has a diameter corresponding to the installation space, and may be provided as a mass having a constant weight.

This ball 345 is placed at a certain height inside the sensor housing 33 while being fixedly coupled to the ring member 343 of the support portion 341, and the protruding member 344 of the support portion 341 is a protruding member ( It can be inserted into the insertion hole 331 of the sensor housing 33 having a diameter larger than 344). Therefore, the ball 345 can detect a change in inclination of the vehicle by moving in various directions, such as forward and backward and left and right, depending on the change in inclination of the vehicle while installed inside the sensor housing 33.

The central portion of the sensor lever 35 may be rotatably coupled to the sensor housing 33, and one end of the sensor lever 35 may be coupled to the pilot lever 36. And at the other end of the sensor lever 35, a floating protrusion 351 is protruding, extending through the separation space 346 and contacting the upper and lower surfaces of the separation space 346 to rotate the sensor lever 35. .

The upper and lower surfaces of the floating protrusion 351 are curved so that they can come into point contact with the sensor lever 35. Therefore, the sensor lever 35 can rotate smoothly.

This sensor lever 35 is rotatable in the sensor housing 33 by moving the ball 345 constituting the moving member 34 in the forward, left, and right directions according to the change in inclination of the vehicle while connected to the moving member 34. Both ends can be rotated to move in the up and down directions around the combined area.

The pilot lever 36 may be arranged to be slidably movable in the passage portion 313 of the body 31 and the through hole 332 formed in the sensor housing 33. When the pilot lever 36 moves straight in the direction in which it is introduced into the body 31, the locking protrusion 362 of the pilot lever 36 is connected to the steering disk 81 mechanically connected to the spindle module 20. When caught with one of the plurality of protrusions formed on the outer peripheral surface, the spindle module 20 performs a locking operation to prevent the webbing 21 from being pulled out.

On the other hand, when the pilot lever 36 moves straight in the direction in which it is pulled out of the body 31, the coupling between the pilot lever 36 and the steering disk 81 is released, and the webbing 21 can be freely pulled out. there is.

The pilot lever 36 is arranged to be inserted into the passage portion 313 formed in the body 31 so as to be capable of linear reciprocating movement, and may be supported and installed on the passage portion 313 so that it can move only in the forward and backward directions. .

A locking protrusion 362 is formed protruding at the end of the pilot lever 36, and when the pilot lever 36 protrudes into the inside of the body 31 through the passage portion 313, the locking protrusion 362 is formed on a steering disc ( 81), the rotational movement of the steering disk 81 can be restricted.

On the other hand, the coupling holding portion 37 maintains the sensor lever 35 and the pilot lever ( 36) It functions to maintain the combined state.

This coupling holding portion 37 is connected to the sensor lever 35 when the sensor lever 35 rotates inside the sensor housing 33 while the sensor lever 35 is rotated along the width direction of the body 31. The coupling position of the coupled pilot lever 36 may include a moving space portion 371 that can move the pilot lever 36 forward while moving up and down.

Due to this moving space portion 371, the sensor lever 35 and the pilot lever 36 maintain the coupling between them even when the sensor lever 35 rotates together due to the rotation of the sensor housing 33, thereby maintaining the connection between the sensor lever 35 and the pilot lever 36. ) operation can be performed accurately.

In addition, the coupling holding part 37 is provided at one end of the sensor lever 35, and has an open upper surface and a tubular member 372 with a moving space 371 formed therein, and one end of the pilot lever 36. It may include a locking member 373 provided in the part and accommodated in the moving space portion 371, and a connection portion 374 connecting the locking member 373 and the pilot lever 36.

Here, a slit 375 is cut and formed on one side of the tubular member 372, and the connecting portion 374 may be inserted into the slit 375.

That is, the tubular member 372 is provided at one end of the sensor lever 35, has an open upper surface to accommodate the locking member 373, and is formed in a substantially cylindrical shape, and has a slit 375 on one side into which the connecting portion 374 is inserted. ) is cut downward for a set length.

The locking member 373 is formed in a substantially spherical shape and is connected to the pilot lever 36 by a connecting portion 374, and can be inserted into the moving space portion 371 formed in the tubular member 372 formed in a substantially cylindrical shape. . Therefore, the locking member 373 can function as the pilot lever 36 and the sensor lever 35 to interlock the sensor lever 35 and the pilot lever 36.

Of course, the shape of the locking member 373 is not limited to a spherical shape, and is rotatable inside the tubular member 372 and does not deviate from the locking member 373 along the direction in which the pilot lever 36 moves linearly. Any shape is fine.

One end of the connection portion 374 is fixed to the pilot lever 36 and the other end is fixed to the locking member 373, so that the pilot lever 36 and the locking member 373 can be fixed. That is, the connection portion 374 may be inserted into the slit 375 formed in the locking member 373 and disposed to extend to the outside of the tubular member 372.

The pilot lever 36 and the sensor lever 35 are coupled in such a way that the locking member 373 is inserted into the tubular member 372 formed in a substantially cylindrical shape of the sensor lever 35. Because of this, even if the sensor housing 33 rotates due to a change in the inclination of the vehicle, etc., the combination of the sensor lever 35 and the pilot lever 36 is maintained, and the straight reciprocating motion of the pilot lever 36 by the sensor lever 35 is maintained. The operation can be performed accurately.

In addition, as the locking member 373, which is formed in a substantially spherical shape, is inserted into the tubular member 372, which is formed in a roughly cylindrical shape, the sensor housing 33 is not restricted in its rotational movement when rotating due to a change in inclination of the vehicle. , the rotation angle of the sensor housing 33 can range from + 90° to - 90°, assuming that the inclination when placed perpendicular to the bottom surface of the body 31 is 0°.

In this way, the present invention maintains the connection between the pilot lever and the sensor lever by the coupling retainer even if the sensor housing coupled to the body rotates in conjunction with the change in inclination of the backrest of the seat, allowing normal operation in all angle ranges of the backrest. You can do it.

Meanwhile, the steering disk 81 is rotatably installed on one side of the body 31 and rotates in conjunction with the retraction and withdrawal operations of the webbing 21 when the webbing 21 is withdrawn or retracted.

A locking protrusion 811 may be formed to protrude on the outer surface of the steering disk 81.

When the webbing 21 is retracted from these plurality of locking protrusions 811, the surface that contacts the pilot lever 36 or the extension member 93 of the AR lever 90, which will be described below, is formed to be inclined with respect to the tangent line, When the webbing 21 is pulled out, the surface in contact with the pilot lever 36 or the extension member 93 may be formed perpendicular to the tangent line.

Therefore, the steering disk 81 allows the webbing 21 to be drawn in and the webbing 21 cannot be pulled out while the pilot lever 36 or the extension member 93 is in contact with the outer surface of the steering disk 81. You can.

For this purpose, it is preferable that a plurality of locking protrusions 811 are provided at a predetermined distance apart from each other along the circumferential direction of the steering disk 81 to quickly restrain the rotational movement by the pilot lever 36.

The wobble gear 82 is rotatably installed on the plate surface of the body 31 in a position opposite to the steering disk 81 with respect to the plate surface of the body 31, and is used to control the rock canceller lever (canceller lever) and the ARL lever ( 39) has the function of rotating.

On the outer surface of the wobble gear 82, a plurality of external gear teeth 821 may be formed to protrude and be spaced apart from each other at a predetermined distance. Therefore, the wobble gear 82 may rotate while flowing inside the receiving groove 314 formed in the body 31 and engage with the internal gear 315 formed on the inner surface of the receiving groove 314.

Here, on one side of the plate surface of the wobble gear 82, a first interlocking protrusion 822 is formed to protrude at a certain height along the thickness direction of the wobble gear 82, and on the other side of the plate surface of the wobble gear 82, a wobble gear ( A second interlocking protrusion 823 may be formed to protrude at a certain height along the thickness direction of 82).

The spring cassette shaft 84 is inserted into the center of the steering disc 81 and the wobble gear 82 and fastened to the plate surface of the body 31, and generates friction at the contact surface with the wobble gear 82 to drive the steering disc 81. As the wobble gear 82 flows inside the receiving groove 314 due to the rotational movement of the spring cassette shaft 84 according to the rotation, the internal gear 315 and the external gear 821 engage and rotate.

Meanwhile, as shown in FIGS. 6 and 7, the rock canceller lever 85 is rotatably installed on one side of the body 31, and is connected to the steering disk 81 and the pilot lever by rotation of the wobble gear 82. It functions to rotate the steering disc (81) by releasing the contact with (36).

This rock canceller lever 85 is formed by a fastening member 86 rotatably coupled to the plate surface of the body 31, extending from one side of the fastening member 86 toward the wobble gear 82, and having an interlocking groove at the end ( It is configured to include an inclined member 88 that is formed to be inclined upward toward the pilot lever 36 at one end of the first interlocking member 87 and the fastening member 86 and is in contact with the pilot lever 36. there is.

The fastening member 86 is formed in a substantially bar shape and can be rotatably coupled to one side of the plate surface of the body 31 in a position close to the wobble gear 82.

The first interlocking member 87 extends from one side of the fastening member 86 toward the wobble gear 82 by a preset length, and is linked to the movement of the first interlocking protrusion 210 formed on the wobble gear 82. It functions to rotate the rock canceller lever (85).

The first interlocking protrusion 822 is inserted and separated at the end of the first interlocking member 87 so that the first interlocking protrusion 822 can be smoothly contacted and separated from the first interlocking member 87. The groove 871 may be recessed.

The inclined member 88 may be formed to be inclined upward toward the pilot lever 36 at one end of the fastening member 86. This inclined member 88 is in contact with the pilot lever 36 by the rotation of the rock canceller lever 85 and returns the pilot lever 36, which is in contact with the locking protrusion 811 formed on the steering disk 81, to its original position. By returning to and releasing the coupling between the pilot lever 36 and the locking protrusion 811, it functions to enable the withdrawal operation of the webbing 21.

Meanwhile, an AR lever 90 may be rotatably installed on the body 31 above the rock canceller lever 85.

The ARL lever 90 is interlocked with the rock canceller lever 85 or rotates by the rotation of the wobble gear 82, so that one side contacts and separates from one side of the steering disk 81, thereby causing the rotational movement of the steering disk 81. It functions to bind and release.

When installing an item such as a baby car seat that is fixed to the vehicle seat using webbing 21, the ARL lever 90 rotates when the webbing 21 is pulled out to the end, allowing the webbing 21 to be retracted. And withdrawal of Webby (21) is made impossible. Accordingly, the ARL lever 90 is in constant contact with the steering disc 81, allowing the user to conveniently install items such as a baby car seat on the vehicle seat, and after installation is completed, it can be firmly fixed to the seat. there is.

This AR lever 90 has a ring-shaped fastening ring 91 rotatably coupled to the plate surface of the body 31, extends from one side of the fastening ring 91 toward the wobble gear 82, and is interlocked at one end. A protrusion 921 is formed to protrude and a contact member 922, which contacts one side of the rock canceller lever 85 at the other end, extends by a certain length from the other side of the protruding second interlocking member 92 and the fastening ring 91. The end portion may include an extension member 93 that selectively contacts and separates from the steering disk 81 to restrict and release the rotational movement of the steering disk 81.

The fastening ring 91 is rotatably coupled to the plate surface of the body 31 in a position adjacent to the wobble gear 82 and the rock canceller lever 85 and may be provided as an approximately ring-shaped member with a certain thickness. Therefore, the fastening ring 91 enables the AR lever 90 to rotate in conjunction with the second interlocking protrusion 823 or the rock canceller lever 85.

The second interlocking member 92 functions to substantially contact and interlock with the second interlocking protrusion 823 and the rock canceller lever 85.

At one end of the second interlocking member 92, an interlocking protrusion 921 in contact with the second interlocking protrusion 823 is protruding, and at the other side of the second interlocking member 92, it is in contact with the rock canceller lever 85. The contact member 922 is formed to protrude.

The extension member 93 is formed to extend a certain length from the other side of the fastening ring 91, and its end selectively contacts and separates from the steering disk 81, thereby serving to restrain and release the rotational movement of the steering disk 81. To this end, the extension member 93 may be disposed with an end inclined toward the outer surface of the wobble gear 82.

And the end of the extension member 93 is bent toward the wobble gear 82 so as to restrict the rotational movement of the wobble gear 82 when it comes into contact with the locking protrusion 811 formed on the outer surface of the wobble gear 82. The contact surface in contact with the second interlocking protrusion 823 is formed flat so that firm contact can be achieved.

Next, a method of operating a vehicle sensor device according to a preferred embodiment of the present invention will be described in detail with reference to FIGS. 8 and 9.

8 and 9 are diagrams showing the operating state of the vehicle sensor device, respectively.

Figures 8 (a) and (b) illustrate a state in which the sensor housing rotates around the pilot lever, and Figures 9 (a) and (b) illustrate a state in which the moving member flows.

The body 31 and cover 32 constituting the vehicle sensor device 30, that is, the sensor module 30, are attached to the seat belt retractor 10, as shown in (a) and (b) of FIG. 8. In the installed state, the backrest 12 rotates forward and backward due to the forward and backward rotation motion.

At this time, the sensor housing 33 rotatably installed in the internal space of the body 31 consisting of the body 31 and the cover 32 is always maintained in a vertically arranged state.

And so that the sensor housing 33 can maintain its vertical arrangement before the backrest 12 is tilted, the clutch lever 83 rotates and comes into contact with the teeth 333 of the sensor housing 33, thereby forming the sensor housing 33. ) supports.

As shown in (a) and (b) of FIG. 9, before the webbing 21 is pulled out, the end of the extension portion 832 of the clutch lever 83 is aligned with the teeth 333 of the sensor housing 33. In the separated state, the webbing 21 is pulled out, the steering disc 81 and the spring cassette shaft 84 are rotated, and the wobble gear 82 is rotated by the spring cassette shaft 84.

And the shaft of the clutch lever 83 and the spring cassette shaft 84 rotate due to friction, and as a result, the extension portion 832 of the clutch lever 83 comes into contact with the teeth 333 of the sensor housing 33. In this state, when the sensor housing 33 is supported while the webbing 21 is pulled out, the clutch lever 83 does not rotate further and spins, causing the operation of the pilot lever 36 due to the rotation of the sensor lever 35. This can be done accurately.

Meanwhile, when the vehicle is stopped or driving normally, the support portion 341 and the ball 345 constituting the moving member 34 maintain a vertically arranged state. Therefore, the pilot lever 36 remains retracted into the sensor housing 33 and the webbing 21 can be freely withdrawn.

In this state, when a sudden external force is applied from the outside of the vehicle or the vehicle tilts along the width direction while passing through a sharp curve, the support portion 341 and the ball 345 disposed inside the sensor housing 33 are While tilting to one side, one side of the sensor lever 35 connected to the support portion 341 is rotated downward.

When one side of the sensor lever 35 connected to the support portion 341 is rotated downward, the other side of the sensor lever 35 connected to the pilot lever 36 is rotated upward to move the pilot lever 36 to the outside of the sensor housing 33. It is withdrawn as .

In this way, when the pilot lever 36 is pulled out to the outside of the sensor housing 33, the locking protrusion 362 at the end of the pilot lever 36 is caught by one of the plurality of protrusions formed on the outer peripheral surface of the steering disk 81. Accordingly, a locking operation is performed to prevent the webbing 21 from being pulled out.

In this way, the present invention detects changes in the inclination of the vehicle, the inclination of the backrest, and the acceleration of the vehicle using the support portion, ball, and sensor housing that constitute the moving member, and controls the pilot lever by rotating the sensor lever. .

Accordingly, the present invention can control whether the seat belt webbing can be withdrawn by engaging or disengaging the steering disk by operating the pilot lever in and out outward.

In addition, the present invention can unlock the retraction and withdrawal operations of the seat belt webbing in a specific section depending on the purpose of use.

For example, in the present invention, when the rotation angle of the backrest is adjusted in a state in which the seatbelt is not worn, the locking operation according to the change in inclination of the backrest is released to allow the backrest to rotate normally.

In addition, the present invention can prevent noise caused by the movement of the pilot lever by restraining the pilot lever in a state separated from the steering disk when the seat belt is not worn.

In particular, in the present invention, as the sensor lever and the pilot lever are coupled through a coupling holding portion composed of a tubular member formed in a cylindrical shape and a locking member formed in a spherical shape, the coupling area can be moved along the height direction of the tubular member.

In addition, the present invention prevents the locking member from being separated from the tubular member along the direction in which the pilot lever moves linearly, and maintains the coupling with the locking member even when the tubular member rotates, so that the vehicle sensor device rotates by adjusting the angle of the backrest. Thus, the pilot lever can be controlled to move normally in a straight line regardless of the angle at which it is placed.

That is, in the present invention, the vehicle sensor device can normally control the pilot lever in the range of 90° forward to 90° backward about the reference position, which is changed by adjusting the angle of the seat backrest.

Next, the operating method of the pilot lever 36 and the rock canceller lever 85 will be described with reference to FIG. 10.

Figure 10 is a diagram showing the operating states of the pilot lever and rock canceller lever.

Figure 10 (a) shows a state in which the pilot lever and the rock canceller lever are separated, and Figure 10 (b) shows a state in which the rock canceller lever moves along the inclined surface of the pilot lever. Figure 10 (c) shows a state in which the movement of the pilot lever is restricted to the rock canceller lever.

An inclined surface 363 sloping downward to the right may be formed at one end, that is, the right end, of the pilot lever 36.

Here, the degree of inclination of the inclined surface 363 may be formed to be inclined to the same degree as the degree to which the inclined member 88 is formed to be inclined upward. Accordingly, the operation of returning the pilot lever 36 to its original position can be accurately performed by maximizing the contact area between the pilot lever 36 and the inclined member 88.

As shown in FIG. 10, the inclined surface 363 is formed entirely from the top of the body 361 of the pilot lever 36 to the tip of the locking protrusion 362, or from the top of the body portion 361 to the top of the locking protrusion 362. It may even be partially formed.

That is, the inclined surface 363 may be formed at an inclined angle that is the same as or different from that of the stopping protrusion 362.

Therefore, a single inclined structure is applied to the right end of the pilot lever 36 by a locking protrusion 362 and an inclined surface 363 having the same inclination angle, or a locking protrusion 362 and an inclined surface 363 having different inclination angles. A double slope structure can be applied.

Meanwhile, the passage portion 313 formed in the coupling portion 312 is formed in a substantially cylindrical shape, and a rotation prevention groove 316 having a narrow width compared to the central portion may be formed at the upper end of the passage portion 313. . In addition, a rotation-prevention protrusion 364 that moves linearly while coupled to the rotation-prevention groove 316 of the passage portion 313 may be formed to protrude at the top of the body portion 361 of the pilot lever 36.

Accordingly, the pilot lever 36 is prevented from rotating during a straight reciprocating motion through the passage portion 313 formed in a substantially cylindrical shape and can be maintained in a horizontal state.

At one end, that is, the right end, of the sensor housing 33 coupled to the coupling portion 312 of the body 31, a through hole 332 is formed in a substantially cylindrical shape with an open upper surface.

That is, the through hole 332 protrudes in the right direction toward the coupling portion 312 and may be coupled to the space between the coupling portion 312 and the passage portion 313.

Here, a plurality of angle-limiting protrusions 334 may be formed on the outer peripheral surface of the through hole 332, and a blocking protrusion 317 that engages the angle-limiting protrusions 334 may be formed on the inner peripheral surface of the coupling portion 312.

For example, the angle limiting protrusion 334 may be formed at both ends and the bottom of the outer peripheral surface of the through hole 332, and the stopping protrusion 317 may be formed at the top of the inner peripheral surface of the coupling portion 312.

Here, the angle limiting protrusion 334 may be formed to protrude from the outer peripheral surface of the through hole 332 in a substantially semi-spherical or semi-cylindrical shape.

The sensor housing 33 may be formed in an approximately cylindrical shape with openings at the front, rear, and top.

The rotation angle of the sensor housing 33 may be limited by contact between the angle limiting protrusion 334 and the stopping protrusion 317. That is, assuming that the sensor housing 33 has an inclination of 0° when placed perpendicular to the bottom surface of the body 31, it can rotate within a range of +90° to -90°.

These plurality of angle limiting protrusions 334 can provide a rotation axis function when the sensor housing 33 is rotated while being coupled to the space between the coupling portion 312 and the passage portion 313 of the body 31. .

In addition, the plurality of angle limiting protrusions 334 reduce the contact area with the inner peripheral surface of the coupling portion 312 to suppress friction and provide an axis bearing function so that the sensor housing 33 can rotate smoothly. can be provided.

Additionally, a shaft portion 335 may be provided at the left end of the sensor housing 33 and is coupled to the left wall of the body 31 to provide a bearing function.

The shaft portion 335 protrudes toward the left from the left wall of the sensor housing 33, and provides a rotation axis function when the sensor housing 33 rotates while coupled to the groove formed on the left wall of the body 31. You can.

Additionally, the shaft portion 335 may provide a shaft bearing function so that the sensor housing 33 can rotate smoothly by reducing friction occurring between the groove portions.

In this way, the through hole 332 and the shaft portion 335 provided at both ends of the sensor housing 33, that is, the right end and the left end, respectively, are centered on the virtual line along which the pilot lever 36 moves in a straight line. ) functions as a rotating axis.

That is, the through hole 332, the shaft portion 335, and the pilot lever 36 are arranged in a row on the same axis.

In this way, the present invention can provide a rotation axis function so that the sensor housing can rotate smoothly by arranging the through hole and the shaft portion provided at both ends of the sensor housing on the axis along which the pilot lever moves in a straight line.

And in the present invention, the pilot lever is placed on the rotation axis of the sensor housing, so that it can be controlled to move horizontally and linearly even if the sensor housing rotates.

Additionally, the present invention applies an inclined structure to the pilot lever, so that the pilot lever can be kept horizontal even when the sensor housing rotates.

Accordingly, the present invention can provide uniform locking performance by contact and engagement with the steering disk by maintaining the pilot lever horizontally.

Meanwhile, at the left end of the inclined member 88, there is a pressing portion that moves along the inclined surface 363 of the pilot lever 36 and presses the pilot lever 36 to move to the left when the rock canceller lever 85 is rotated. (89) can be formed.

The pressing portion 89 is formed in a substantially bar shape and may be installed horizontally along the front-back direction at the left end of the inclined member 88.

Therefore, as shown in (a) of FIG. 10, in a state where the rock canceller lever 85 and the pilot lever 36 are separated, the pilot lever 36 is a moving member 34 according to changes in the inclination and acceleration of the vehicle. It moves to the right by the flow, that is, the left-right flow, and enters a lockable state in which it can be combined with the locking protrusion 811 of the steering disk 81.

That is, in the lockable state, the webbing 21 can be freely withdrawn or entered by the operator's manipulation force.

And in the lockable state, when the locking protrusion 362 of the pilot lever 36 is coupled to the locking protrusion 811 of the steering disk 81, the webbing 21 becomes unable to rotate the steering disk 81. , the locking operation state is such that retraction of the webbing 21 is possible and retraction of the webbing 21 is impossible.

On the other hand, when the rock canceller lever 85 rotates clockwise when viewed from one side of the fastening member 86 (b) in FIG. 10 in conjunction with the rotational movement of the wobble gear 82, the inclined member ( The pressing part 89 installed horizontally on 88 moves downward along the inclined surface 363 formed at the right end of the pilot lever 36, as shown in (c) of FIG. 10, and moves the pilot lever 36. Pressurize to the left.

Then, the pilot lever 36 is in a rock-canceling state separated from the locking protrusion 811 of the steering disk 81, regardless of the movement of the moving member 34.

The rock-canceling state is before the rider wears the webbing 21, that is, before the belt tongue 110 installed on the webbing 21 is coupled to the buckle 120, the webbing 21 is freely withdrawn according to the rider's operating force. and may be in a retractable state.

In this way, the present invention uses the inclined surface of the pilot lever to press and fix the pilot lever to one side by rotating the rock canceller lever under preset conditions, or releases the fixed state to withdraw and retract the seat belt webbing. can be controlled to perform normally.

Through the process described above, the present invention can control the vehicle sensor device to move in a straight line while maintaining the pilot lever horizontally, regardless of the rotation angle of the mounting object on which it is installed.

That is, the present invention installs a sensor lever and a moving member inside the sensor housing, and rotates the sensor lever coupled to the sensor housing by the movement of the ball according to the change in inclination and acceleration of the vehicle, thereby rotating the pilot lever connected to the sensor lever. It can be moved back and forth in a straight line.

In particular, the present invention applies an inclined structure to the pilot lever, so that the pilot lever can be kept horizontal even when the sensor housing rotates.

Accordingly, the present invention can provide uniform locking performance by contact and engagement with the steering disk by maintaining the pilot lever horizontally.

Although the invention made by the present inventor has been described in detail according to the above-mentioned embodiments, the present invention is not limited to the above-described embodiments and, of course, can be changed in various ways without departing from the gist of the invention.

That is, although the configuration of the integrated seat belt device integrated with the backrest of the seat was described in the above embodiment, the present invention covers not only the backrest of the seat, but also the vehicle body, such as a filler disposed on the side of the vehicle body, a vehicle body panel on the rear of the seat, and the vehicle body. It can be modified to be installed in various locations such as the roof or floor.

The present invention is not limited to the configuration of the seat belt retractor described with reference to FIGS. 1 and 2, and the configuration of the seat belt retractor is changed in various ways and a vehicle sensor device is applied to the changed seat belt retractor. It could be.

The present invention is applied to a vehicle sensor device that detects changes in inclination and acceleration of a vehicle and controls the pilot lever to move in a straight line to control whether or not seat belt webbing can be withdrawn, and to a seat belt retractor technology to which the same is applied.

10: Seat belt retractor
11: Seat 12: Backrest
13: Mounting space 14: Guide member
15: Layout space
20: Spindle module
21: Webbing 211: Autonomous webbing adjustment unit
22: spindle 23, 24: first and second brackets
25: first limiter 26: draw-out space
27: elastic module 28: webbing guide
281: Rotating member 282: Rotating pin
29: Guide frame
30: Vehicle sensor device (sensor module)
31: Body 311: Fixed protrusion
312: coupling portion 313: passage portion
314: Accommodating groove 315: Internal gear tooth
316: Anti-rotation groove 317: Locking protrusion
32: cover 321: coupling rib
33: sensor housing 331: insertion hole
332: Penetrating study 333: Sawtooth
334: Angle limiting protrusion 335: Shaft portion
34: moving member 341: support
342: Flat member 343: Ring member
344: Protruding member 345: Ball
346: Separated space
35: sensor lever 351: floating protrusion
36: pilot lever 361: body portion
362: Hook 363: Slope
364: Anti-rotation protrusion
37: coupling maintenance part 371: moving space part
372: tubular member 373: hanging member
374: connection 375: slit
40: Emergency tensioning module
50: Pretensioning module
60: load regulation module 61: second limiter
70: Connection module
81: steering disc 811: locking protrusion
82: Wobble gear 821: External gear gear
822: first interlocking protrusion 823: second interlocking protrusion
83: Clutch lever 831: Flat plate portion
832: Extension 84: Spring cassette axis
85: Rock canceller lever 86: Fastening member
87: first interlocking member 871: interlocking groove
88: inclined member 89: pressurizing part
90: ARL lever 91: Fastening ring
92: second interlocking member 921: interlocking protrusion
922: contact member 93: extension member
100: Seat belt device
110: Belt tongue 120: Buckle

Claims (8)

The body that forms the appearance,
A cover coupled to the open surface of the body,
A sensor housing rotatably installed inside the body based on changes in the installation angle of the body and the tilt of the mounting object,
A moving member that flows inside the sensor housing according to changes in inclination and acceleration of the vehicle,
A sensor lever rotatably coupled to the sensor housing to rotate according to the flow of the moving member,
A pilot lever that is coupled to the sensor lever and moves linearly back and forth by rotation of the sensor lever inside the sensor housing to engage or separate from the steering disk, and
It includes a rock canceller lever that rotates the steering disc by releasing contact between the steering disc and the pilot lever so that the seat belt webbing can be retracted and withdrawn,
A vehicle sensor device, wherein the pilot lever is separated from the steering disk by rotating the rock-cancelling lever using an inclined structure while being horizontally disposed between the body and the sensor housing. According to paragraph 1,
The body is provided with a coupling portion to which one end of the sensor housing is coupled,
A through hole coupled to the coupling portion is formed at one end of the sensor housing,
The pilot lever is disposed horizontally in the through hole and moves back and forth in a straight line. According to paragraph 2,
The pilot lever is formed with a locking protrusion that catches one of a plurality of locking protrusions formed on the outer peripheral surface of the steering disc,
A vehicle sensor device, characterized in that an inclined surface is formed on one side of the pilot lever where the locking protrusion is formed. According to paragraph 3,
The inclined surface is a vehicle sensor device characterized in that it extends from the top of the pilot lever to the stopping ledge. According to paragraph 3,
The vehicle sensor device, characterized in that the inclined surface is formed from the top of the pilot lever to the top of the stopping ledge. According to paragraph 1,
The rock canceller lever is a fastening member rotatably coupled to the plate surface of the body,
A first interlocking member extending from one side of the fastening member toward a wobble gear disposed on one side of the steering disk and having an interlocking groove formed at an end,
An inclined member formed at one end of the fastening member to be inclined upward toward the pilot lever and in contact with the pilot lever, and
A vehicle sensor device, characterized in that it is installed horizontally at an end of the inclined member and includes a pressing portion that presses an inclined surface of the pilot lever. According to paragraph 1,
The vehicle sensor device is characterized in that when the pilot lever is separated from the steering disk by the lock canceller lever, locking of the retracting and retracting operations of the seat belt webbing is impossible. A vehicle sensor device comprising the configuration described in any one of claims 1 to 7 and detecting changes in inclination and acceleration of the vehicle, and
A spindle module including a spindle around which seat belt webbing is wound,
A seat belt retractor equipped with a vehicle sensor device, which linearly moves the pilot lever to engage or disengage from the steering disc while keeping the pilot lever horizontal based on detected changes in inclination and acceleration of the vehicle.

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