JPH0321318Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to an improvement of a guide arm of a vehicle seat belt device.

Conventional technology This type of guide arm was first developed in 1983.
There is one disclosed in Publication No. 107951. This is provided with a biasing means that rotates the belt hanger forward about the support point at the upper end, and when necessary, the biasing means can be activated to move the seat belt forward so that the seat belt can be easily pulled out by the occupant. It is something that becomes possible.

Similar content is also disclosed in Japanese Utility Model Application Publication No. 58-98946. In this method, the shoulder arm is formed of a rigid body that holds an engaging member such as a buckle in a predetermined position in a natural state, and the shoulder arm is made of a rigid body that can withstand loads inward of the vehicle interior. While the shoulder arm bends easily, by providing a bending regulation mechanism that prevents the shoulder arm from easily bending when a load is applied to the outside of the vehicle interior, the shoulder arm bends easily when the seatbelt is fastened. It bends inward to securely restrain the occupant, and when the seatbelt is not fastened, it prevents the engaging member from swinging toward the outside of the vehicle, preventing the engaging member from interfering with the door glass or touching the door. It is designed to prevent it from being pinched.

Problems that the invention aims to solve In both of the above cases, the shoulder belt can be moved away from the passenger's body to alleviate the feeling of pressure on the passenger, but in the former case, the seat belt can be pulled out by the passenger. Since the purpose of the belt hanger is to make it easy to use, the belt hanger is just a rod-shaped arm, and the shoulder arm in the latter is only concerned with its flexibility. No consideration is given to stretchability in the longitudinal direction.

Therefore, depending on the occupant's physique, it is still not possible to prevent the seat belt from touching the occupant's body. Furthermore, if the seat belt is in constant contact with the passenger's body, this is not desirable as it will encourage sweating.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a vehicle seat belt device in which one end is supported via a shaft on the ceiling side of the vehicle interior, and a shoulder belt is inserted through the other end. In the guide arm, the main body of the guide arm is divided into two parts: a fixed part supported via the shaft and a movable part through which the shoulder belt is inserted. A guide hole is provided along the longitudinal direction of the guide arm, and a guide rod is provided on the other side to be inserted into the guide hole, and a lock mechanism for adjusting expansion and contraction is provided between the guide hole and the guide rod. A configuration is adopted in which an angle adjustment lock mechanism is provided between the fixed portion and the shaft.

Function When the occupant unlocks the telescopic adjustment lock mechanism and pulls or compresses the guide arm in one direction according to the occupant's physique, preference, etc., the guide rod slides in the guide hole and the length changes. Adjustments will be made. When the lock is performed again, the guide arm will be fixed at the appropriate length.

Also, when the angle adjustment lock mechanism is unlocked and a rotational force is applied to the guide arm, the arm rotates around the axis, and by locking again, the arm is moved to the appropriate angular position. It will be fixed. This causes the shoulder belt portion of the seat belt to separate from the occupant's body.

Embodiment FIGS. 1 and 2 show an embodiment of the guide arm according to the present invention. In FIG. 1, reference numeral 1 is a shoulder belt portion of a seat belt 26, and reference numeral 2 is a main body of a guide arm that holds this shoulder belt portion 1.

The main body 2 of the guide arm has a flat bar shape as a whole, one end of which is supported on the ceiling side of the vehicle interior through a shaft 3, and a ring 4 is provided at the other end, and the above-mentioned ring 4 is provided at the other end. Shoulder belt part 1
is being passed through. Also, the main body 2 of the guide
are the fixed part 5 on the shaft 3 side and the movable part 6 on the ring 4 side.
The fixed part 5 is provided with a guide hole 7 along the longitudinal direction of the guide arm main body 2, and the movable part 6 is provided with a guide rod 8 to be inserted into the guide hole 7. There is.

A locking mechanism for adjusting expansion and contraction is provided between the guide hole 7 and the guide rod 8. The mechanism consists of push buttons 10 inserted into vertical holes 9 provided on the upper and lower sides of the movable part 6, respectively, and a horizontal hole 11 provided in the vertical holes 9 from inside toward the distal end of the guide rod 8. It is provided with two upper and lower keys 12 and a plurality of grooves 13 provided intermittently along the longitudinal direction of the guide hole 7 of the fixing part 5. And the above two keys 1
2 is fixed to the inner end of each push button 10, and its tip forms a hook-shaped bent portion 14 that protrudes from the hole at the tip of the guide rod 8 toward the groove 13. Further, each of the push buttons 10 is urged outward by a spring 15 provided in the vertical hole 9.

For this reason, the passenger must press the upper and lower push button 1.
When 0 is pressed, the two keys 12 approach each other, and the bent portion 14 escapes from the groove 13. Therefore, if the movable part 6 is pulled away from the fixed part 5, the guide arm main body 2 will be extended. When the push button 10 is released when the guide arm body 2 reaches the length desired by the occupant, the key 12 enters the corresponding groove 13 by the action of the spring 15, and this set length is maintained. Become. Conversely, when retracting the guide arm main body 2, the push button 10 is operated in the same manner as described above, and the movable part 6 is pressed against the fixed part 5 side.

Further, an angle adjustment locking mechanism is provided between the fixing part 5 and the shaft 3, and this mechanism includes a push button 17 inserted into a vertical hole 16 provided on the fixing part 5 side, and a lock mechanism for adjusting the angle of the shaft 3. A rod 19 hangs down from the push button 17 and reaches into a cavity 20 formed on the end surface of the shaft 3, and a rod 19 is provided at the lower end thereof. An engaging piece 21 that engages with the groove 18 is fixed. Further, reference numeral 22 denotes a coil spring, which is embedded in the vertical hole 16, and the push button 17 is constantly pressed upward by its biasing force.

Therefore, when the push button 17 is not operated, the engagement piece 21 enters into one of the grooves 18, and as a result, the guide arm body 2 is held at an integral angle with respect to the shaft 3, but the push button 17 is not operated by the occupant. When pressed, the engaging piece 21 descends in the direction of the axis of the shaft 3, is released from the groove 18, and the guide arm main body 2 can freely rotate around the axis of the shaft 3. When the occupant brings the guide arm main body 2 to the desired angular position and releases the push button 17, the engagement piece 2 is moved by the action of the spring 22.
1 enters into the groove 18 corresponding to the position and engages.

The shaft 3 is fixed to the upper part of the center pillar 23 as shown in FIG. 4, and a ring 24 through which the shoulder belt portion 1 is inserted is loosely fitted onto the shaft 3. Further, the main body 2 of the guide arm is made of a flexible material, and therefore, in an emergency, it will flex with the tension of the belt, deforming and moving in a direction that restrains the occupant.

Preferably, the seat belt 26 is formed such that a large number of protrusions 25 protruding toward the passenger are arranged at equal intervals on both sides of the seat belt 26, as shown in FIGS. 1 and 3. Due to the presence of the protrusion 25, even if the seat belt 26 comes into contact with the body of the occupant, a gap is created between the two, thereby improving ventilation. Therefore, the inconvenience that the body parts that come into contact with the seat belt 26 tend to sweat easily, especially in summer, is also eliminated.

Therefore, the seat belt 26 supported by the guide arm configured as described above draws a substantially rectangular shape as shown in FIG. 4, and the length and angle of the guide arm main body 2 can be adjusted by the occupant as described above. After that, it is installed as shown in FIG. Therefore, a gap is formed between the shoulder belt portion 1 and the body of the occupant 27, regardless of the occupant's physique and body type.

Effects of the invention Since the invention has the above-described structure and function, the length and angle of the guide arm can be freely adjusted to reduce the gap between the shoulder belt and the body, regardless of the occupant's physique. can be formed. Therefore, it is possible to prevent the occupant from feeling pressured or tense by wearing the seat belt, and also to prevent sweating due to contact with the seat belt.

[Brief explanation of the drawing]

1 and 2 show an embodiment of the guide arm according to the present invention, and FIG. 1 is a partially cutaway front view;
Figure 2 is a sectional view taken along the line - - in Figure 1, Figure 3 is a partially cutaway perspective view of a shoulder belt that is effective when applied to the guide arm, and Figure 4 shows the relationship between the guide arm, the vehicle body, the shoulder belt, etc. FIG. 5 is a schematic front view showing the positional relationship between the two, and FIG. 5 is a perspective view showing the passenger wearing the shoulder belt. 1: Shoulder belt part, 2: Guide arm body, 3: Axis, 5: Fixed part, 6: Movable part, 7: Guide hole, 8: Guide rod.

Claims (1)

[Scope of utility model registration request] One end is supported on the ceiling side of the vehicle interior via a shaft,
In a guide arm of a vehicle seat belt device having a shoulder belt inserted through the other end, the main body of the guide arm has a fixed part on the side supported via the shaft and a movable part on the side through which the shoulder belt is inserted. one of the two parts is provided with a guide hole along the longitudinal direction of the guide arm, and the other is provided with a guide rod to be inserted into the guide hole, and The above-mentioned vehicle seat belt, characterized in that an extension/contraction adjustment lock mechanism is provided between the guide hole and the guide rod, and an angle adjustment lock mechanism is provided between the fixed portion and the shaft. guide arm.