JPH0224359Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

The present invention relates to a device for releasing an automatic belt installed in a vehicle in an emergency such as a vehicle overturning, thereby facilitating the evacuation of a passenger.

[Prior art]

Among the automatic belts that automatically shift the seatbelt installed in the vehicle between the occupant restraint position and the release position in response to the door opening/closing operation, making it easier for the occupant to get on and off the vehicle, this belt is especially suitable for the center side of the vehicle. Fix the emergency locking retractor in a position near the seat of the
The diagonal type automatic belt device, which connects the pull-out end of the seat belt wrapped and stored in the emergency locking retractor to the upper part of the door opening side of the vehicle, uses a continuous seat belt from the shoulder to the waist. Compared to automatic belts that shift in response to the opening and closing of a door, the mechanism is simpler, less likely to break down, and more practical, making it popular in many quarters. By the way, in this type of conventional diagonal type automatic belt, in the event of an emergency such as a vehicle collision or rollover, the belt locking action of the emergency locking retractor may actually hinder the opening operation of the door connected to the tip of the seatbelt. Therefore, these seat belts are usually provided with a removable emergency release means consisting of a combination of buckles and tongues at the middle part or at the upper end on the door opening side, and by separating the seat belt from the door, Efforts have been made to allow the door to open and facilitate the evacuation of the occupants.

[Problem that the invention attempts to solve]

However, in the automatic belt device in which the seat belt is equipped with an emergency release means as described above, the seat belt can be easily disconnected by simply operating the buckle of the emergency release means. Since the system is left to the free will of the individual, there is a concern that it could be used incorrectly, such as driving a vehicle without an automatic belt installed, and there was room for immediate improvement in this regard. This invention focused on the problems that conventional automatic belts had as described above, and aimed to solve them. Insert the extra length belt part into the belt passage hole of a belt insertion tool with a clamp mechanism capable of locking the belt attached to the upper part of the door opening side of the vehicle, and insert the free end into the free end of the extra length belt part. By providing a retaining means to prevent the belt insertion tool from passing through the belt passage hole, the seat belt is automatically locked from extending out from the retractor due to a vehicle rollover, etc., and the door cannot be opened. Even if you fall into
By simply releasing the belt locking action by the clamp mechanism, the effective length of the seat belt is extended by the length of the extra belt portion, making it possible to open the door and assisting the occupant in escaping. Even if the clamp mechanism is unlocked, the seat belt remains connected to the door via the excess belt portion to prevent the automatic belt from being used in an unauthorized manner.

[Means to solve the problem]

The configuration of the present invention to achieve the above purpose is to use a seatbelt that is pulled out from an emergency locking retractor placed near the seat on the center side of the vehicle and stretched toward the upper part of the door opening side to open and close the door. In an automatic belt device that can be shifted between an occupant restraint position and a release position in response to a reaction, a belt insertion tool equipped with a clamp mechanism capable of locking a belt is attached to the upper part of the open side of the door, and the belt insertion tool Insert the extra belt part of a seat belt having an extra belt part of a required length continuously formed at the pull-out end into the belt passage hole of The main feature is that a retaining means is provided to prevent the insertion tool from passing through the belt passage hole.

【Example】

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a perspective view showing an example of an automatic belt to which an emergency release device according to the present invention is applied, and FIG.
FIG. 3 is a sectional view taken along the - line arrow in FIG. 2, and FIG. 4 is a perspective view showing the state at the time of emergency evacuation. In these figures, 1 is a vehicle body, 2 is a door, 3 is a seat, and 4 is a known emergency locking retractor fixed to the vehicle floor near the center side of the vehicle. A seat belt 5 is wound and stored in the tractor 4 in a retracted and biased state, and the seat belt 5 is pulled out diagonally upward from the retractor 4 across the upper part of the seat 3. An extra length belt portion 6, which is formed by extending the webbing constituting the seat belt 5 by a predetermined length l, is connected to the pulled-out end of the seat belt 5. Further, the door 2 has a sash bracket 9 on its open side upper part that fits into a pillar bracket 8 fixed to the center pillar 7 of the vehicle body 1.
is installed, and for the said sash bracket 9,
A belt insertion tool 10 equipped with a clamp mechanism for clamping and holding the extra belt portion 6 of the seat belt 5,
Bolts 12 are used to attach the U-shaped frame 11 that constitutes the board.
and is pivotably supported by a nut 13. The belt insertion tool 10 has a lock rod 14 having an irregular cross section installed between both side walls 11b and 11c standing up from the bottom plate 11a of the frame 11, and a lock rod 14 having an irregular cross section extending between the both side walls 11b and 11c. It has a lever member 16 that is pivotably supported by a fulcrum pin 15 parallel to the frame 14 between a solid line position and a two-dot chain line position in FIG. A horizontally elongated belt passage hole 17 extending parallel to the lock rod 14 is provided through which the extra belt portion 6 of the seat belt 5 is inserted. Further, the seat belt 5 has an extra belt portion 6 that is inserted into the belt passage hole 17 of the belt insertion tool 10.
The seat belt 5 is inserted from the lower surface side of the frame 11, and once wrapped around the lock rod 14, is pulled out again through the belt passage hole 17 to the lower surface side of the frame 11, and the occupant restraining portion of the seat belt 5, that is, the retractor 4 and the belt insertion tool 10, and on the outer periphery of the overlapping portion between the extra length belt portion 6 and the seat belt 5,
A rectangular annular clip member 18 that holds these in a bound state is inserted through the seat belt 5 so as to be movable along the length direction of the seat belt 5. Further, the extra length belt portion 6 is attached to the lock rod 1.
Two clamping portions 19, 1 facing each other, the portions of which are wrapped around the lever member 16 protrude from the inner surface of the lever member 16.
9' and the opposing surfaces of the lock rod 14,
Movement in the longitudinal direction is prevented. Note that the extra length belt portion 6 has a free end 6a.
On the side, a retaining portion 21 is provided which is larger in outer shape than the through hole 20 of the clip member 18, which is formed by folding back and sewing the tip of the webbing, and the clip member 18 is provided with the belt insertion tool. Since the lever member 1 has a size that does not pass through the belt passage hole 17 of 10, the lever member 1
Even when the lock by 6 is released, the seat belt 5 does not pass through the belt passage hole 17 and can be locked to the upper part of the open side of the door 2 via the belt insertion tool 10. Furthermore, the length l of the extra length belt portion 6 is
The length is set at least long enough to open the door 2 and allow the occupant to escape in an emergency. In the figure, reference numeral 22 denotes knee pads that are fixed to the vehicle body 1 in front of the kneecaps of the occupant seated on the seat 3, and are used to prevent the occupant's lower body from moving forward significantly due to inertia in the event of a vehicle collision, etc. . The emergency release device of the present invention has the above-mentioned configuration, and its operation will be explained next. First, when using a normal automatic belt, the lever member 16 provided on the belt insertion tool 10 is moved as shown in FIG. When the extra length belt portion 6 is folded down as shown by the solid line and the extra length belt portion 6 is attached to the seat belt 5 and held in an overlapping state by the clip member 18, the seat belt 5 will hold the extra length belt portion 6. As shown in FIG. 1, they are stretched over the seat 3 in an overlapping state so as not to interfere with occupant restraint. When opening the door 2 in this state, the seatbelt 5 is moved from the retractor 4 to the seatbelt 5 depending on the opening degree of the door 2.
is pulled out to the required length, and the seat belt 5 retracts obliquely forward from the retractor 4 in response to the door 2, allowing the occupant to get on and off smoothly. By simply closing the seat belt 5, the occupant is restrained in a state where the seat belt 5 diagonally crosses the front of the occupant's body, and the occupant's upper body is prevented from flying forward in the event of a vehicle collision, thereby ensuring the safety of the occupant. Furthermore, when an emergency situation such as a vehicle collision or rollover occurs while the occupant is restrained as shown in FIG. , when the door 2 cannot be opened, use the lever member 16 provided on the belt insertion tool 10.
3 as shown by the two-dot chain line in FIG. The slip-off prevention part 21 provided on the free end 6a side slides along the outer circumference of the seat belt 5 together with the clip member 18, so that the effective length of the seat belt 5 reaches the fourth position.
As shown in the figure, since the extra length belt portion 6 is extended by the length l, this extra length makes it possible to open the door 2 as much as necessary for escape, thereby allowing the occupant to exit the vehicle. You can easily escape. FIG. 5 shows a modification of the emergency evacuation device of the present invention. In the device shown in FIGS. 10, folded back, and bundled with the clip member 18 while overlapping with the seat belt 5, and stored so as not to interfere with occupant restraint.In contrast, in this embodiment, the extra length belt portion 6 is stored. As a means for this, a take-up reel 24 having a take-up shaft 23 which is biased to rotate in a certain direction by a spring is disposed adjacent to the belt insertion tool 10, and the frame member 2 of the take-up reel 24 is
5 is connected to the frame 11 of the belt insertion tool 10, and the free end side of the excess belt portion 6 is fixed to the winding shaft 23 and wound and stored around the outer periphery of the winding shaft 23. In the drawings, the same reference numerals as in FIG. 3 indicate the same members and parts, respectively. In the emergency disengagement device configured as described above, under normal conditions, the excess belt portion 6 is wound around the take-up reel 24 and kept in a retracted state, and is kept on standby so as not to interfere with restraining the occupant. When the lever member 6 of the belt insertion tool 10 is unlocked, the extra length belt section 16 is pulled out from the take-up reel 24 by the tensile force caused by the opening of the door 2, and is pulled out by the length of the extra length belt section 6. The effective length of the seat belt 5 is extended, thereby making it possible to open the door 2 and easily escape.

[Effect of the idea]

As described above, the emergency disengagement device of the present invention continuously forms an extra length belt portion of a required length on the pulled-out end side of a diagonal type seat belt pulled out from an emergency lock type retractor. It is inserted into the belt passage hole of a belt insertion tool equipped with a clamp mechanism capable of locking the belt attached to the upper part of the open side of the door, and the free end is inserted into the belt passage of the clamp mechanism. Since it is equipped with a retaining means to prevent it from passing through the hole, if the emergency locking retractor prevents the seat belt from extending due to a vehicle collision or rollover, etc., and the door becomes unable to open. Also, by simply releasing the locking action of the extra belt part of the belt insertion tool, the extra belt can be pulled out, and the effective length of the seat belt is extended by the length of the extra belt part, To facilitate occupant escape by opening the door, and to maintain the seat belt connected to the upper part of the door opening side via the excess belt portion even when the clamp mechanism of the belt insertion tool is released during normal use. It is highly effective in reminding occupants of the correct use of the automatic belt system and ensuring occupant safety in an emergency.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an example of an automatic belt to which the emergency disengagement device of the present invention is applied, Fig. 2 is an enlarged view of section A in Fig. 1, and Fig. 3 is a - in Fig. 2.
FIG. 4 is a perspective view showing the state at the time of emergency evacuation, and FIG. 5 is a side sectional view showing another embodiment of the device of the present invention. 1... Vehicle body, 2... Door, 3... Seat,
4...Emergency lock type retractor, 5...Seat belt, 6...Excess belt length, 6a...Free end,
10...Belt insertion tool, 17...Belt passage hole.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A seatbelt that is pulled out from an emergency locking retractor placed near the seat on the center side of the vehicle and stretched toward the upper part of the door opening side when the door is opened or closed, In an automatic belt device that can be shifted between a restraining position and a release position, a belt insertion tool equipped with a clamp mechanism capable of locking the belt is attached to the upper part of the open side of the door, and the belt insertion tool has a belt passage hole. Insert the extra belt part of a seat belt having an extra belt part of the required length continuously formed at the pull-out end, and insert the extra belt part into the free end of the extra belt part, and make sure that the free end of the belt insertion tool is inserted into the free end of the extra belt part. An automatic belt emergency release device, characterized in that it is provided with a means for preventing the belt from passing through a belt passage hole. 2. The free end of the extra length belt inserted through the belt passage hole of the belt insertion tool and pulled out is overlapped with the pulled out end of the seat belt, and the clip member inserted through the outer periphery of the overlapping part is inserted in the longitudinal direction of the belt. An emergency release device for an automatic belt according to claim 1, which is bundled so as to be movable along the utility model. 3. By folding and sewing the webbing at the free end to the free end of the extra length belt part, a slip-out prevention part larger than the belt passage hole of the clip member is formed, and the clip member is inserted into the belt passage of the belt insertion tool. The automatic belt emergency release device according to claim 1 or 2, wherein the extra length belt portion is prevented from coming off by being formed larger than the hole. 4. The free end of the excess belt portion is fixed to the winding shaft of a belt winding reel provided adjacent to the belt insertion tool, and is wound around the outer periphery of the winding shaft while being biased in the winding direction. An emergency release device for an automatic belt according to claim 1 of the stored utility model registration claim.