KR100821278B1 - A fixing apparatus for the head rest of automobile - Google Patents

Abstract

The present invention relates to a head restraint device for an automobile head rest, and is fixed to a head restraint when a head hits the head rest during a collision so as to prevent a neck fracture caused by the head being flipped back and forth momentarily during an automobile crash. The fasteners of the device protrude from the head restraint and hold the head, and the head restraint device for an automobile head restraint prevents an accident of breaking the neck bone by the head being bounced forward again by the secondary shock.

According to the present invention, the main body is formed in the symmetrical movement of the fixture moving groove in the shape of an arc; An arc-shaped fastener which is inserted and installed while winning the elastic force of the elastic mechanism in each of the fastener moving grooves, and the locking groove is drilled at the inner end portion thereof; A connecting rod installed in the center of the main body to move freely; A pressing plate fixedly installed to be elastically supported by a main body and a compression spring at an end positioned inside an arc of the main body of the end of the connecting rod; And a connecting plate fixedly installed at an end positioned on an outer side of the arc of the main body of the connection table, and having a fixing pin inserted into a locking groove of the fixture. While the elastic force of the elastic mechanism is inserted into the fixing pin in the locking groove of the two fasteners inserted into the fixing tool moving groove, and the pressing plate is moved to the outer side of the circular arc of the main body, the fixing pin is separated from the locking groove and the elastic mechanism There is provided a head fixing device for an automobile head rest configured to protrude out of the main body by means of elastic force.

Car, seat, headrest, shock, neckbone

Description

A fixing apparatus for the head rest of automobile}

1 is a perspective view of the present invention installed in the head rest

2 is an overall perspective view of the present invention

Figure 3 is a cross-sectional view of the present invention installed on the head rest

Figure 4 is a cross-sectional view of the state in which the present invention is activated the fixture is protruding from the head rest

5 is a cross-sectional view showing a structure in which the fixture of the present invention is operated by the elastic force

※ Explanation of codes for main parts of drawing

1: Fixed moving groove 2: Body

3: hanging groove 4: fixture

5: connecting rod 6: compression spring

7: pressing plate 8: fixing pin

9: connecting plate 10: pin moving groove

11: Fixture Pin 12: Tension Spring

13 roller 14 fastening pin

15: headrest

The present invention relates to a head restraint device for an automobile head rest, and is fixed to a head restraint when a head hits the head rest during a collision so as to prevent a neck fracture caused by the head being flipped back and forth momentarily during an automobile crash. The fasteners of the device protrude from the head restraint and hold the head, and the head restraint device for an automobile head restraint prevents an accident of breaking the neck bone by the head being bounced forward again by the secondary shock.

The headrest installed in the seat of the car supports the head in the event of an accident, and is an important structure to prevent the head and neck from being broken by preventing the head from moving differently from the body. To this end, the headrests can adjust their height according to the height of the driver or passengers, thus supporting the head accurately.

However, when the vehicle collides and the head of the driver or passenger hits the head rest, there is a problem that the head breaks due to the difference in movement with the body while the head leaves the head rest due to the second impact.

That is, when the vehicle collides from the front, the head and the body pop out forward due to inertia, and the head hits the head rest again while moving back by the seat belt or the like. When the impact is applied from the rear of the vehicle, the head and body are moved backwards, and the head and body are hit by the second impact and then the head and the body are moved forward by the second impact.

In the case of various accidents as described above, the head and the body are not moved at the same displacement at the same time, the head reacts first compared to the body, and the displacement of the head is large. Therefore, in the first or second shock, the head is moved faster and farther than the body, and the neckbone is broken.

However, in the conventional case, there is no structure preventing the neck bone from being broken in this way, and only the head rest supporting the head during the first impact is all.

SUMMARY OF THE INVENTION An object of the present invention is to provide a head fixing device installed in an interior of a head restraint of a car by restraining the cervical vertebrae by fixing the head during a collision of the car. That is, when the car is impacted and the head hits the head restraint, the fastener mounted on the head rest protrudes to hold the head part or the chin part. It is a specific object to provide a head restraint for an automobile headrest that moves at greater displacement to prevent broken neck bones.

Head restraint device for a head restraint vehicle according to the present invention includes a main body (2) formed therein symmetrically fixed fixture moving groove (1) in the shape of an arc; An arc-shaped fastener (4) inserted and installed while winning the elastic force of the elastic mechanism in each of the fastener moving grooves (1), and the locking grooves (3) are drilled at the inner end portions; A connecting rod 5 installed through the center of the main body 2 to move freely; A pressing plate 7 fixedly installed to be elastically supported by the main body 2 and the compression spring 6 at the end positioned inside the arc of the main body 2 of the ends of the connecting table 5; The connecting plate 9 is fixedly installed at the end portion located on the outer side of the arc of the main body 2 of the end of the connecting table 5, the fixing pin 8 is inserted into the locking groove 3 of the fastener 4 It is configured to include; While the elastic force of the elastic mechanism is inserted into the fixing pin (8) to the locking groove (3) of the two fasteners (4) inserted into the fastener moving groove (1), the pressing plate (7) is the main body (2) When the outside of the circular arc of the fixed pin 8 is separated from the locking groove 3 is characterized in that the fastener 4 is configured to protrude to the outside of the main body 2 by the elastic force of the ballast mechanism.

The elastic mechanism may be a compression spring provided between the fastener 4 and the main body 2 by drawing out the fastener 4 so as to protrude, or may have both ends of the main body 2 and the inside of the fastener 4. It may be a tension spring having both ends fixed to the ends. Of course, the compression spring or the tension spring is to operate the pair of fasteners 4, respectively, and this also has a pair of symmetrical structures.

Therefore, the main body 2 is in communication with the fixture moving groove 1, the pin moving groove 10 is formed long along the moving direction of the fixture (4); A fixture pin 11 is installed at the inner end of the fixture 4 so as to protrude to the outside of the pin moving groove 10; The elastic mechanism is possible in the embodiment consisting of a tension spring 12, both ends of which are fixed to the outer end of the main body 2 and the fastener pin (11).

And in order to improve the elastic force of the tension spring 12 is also possible to increase the length of the structure. That is, the main body 2 is in communication with the fixture moving groove 1, the pin moving groove 10 is formed long along the moving direction of the fixture (4); A fixture pin 11 is installed at the inner end of the fixture 4 so as to protrude to the outside of the pin moving groove 10; The elastic mechanism includes a roller 13 installed at an outer end of the main body 2 and a fastening pin at one end thereof fixed to the fastener pin 11 and pivoted on the roller 13 so that the other end is installed at the center of the main body 2. An embodiment consisting of a tension spring 12 fixed to 14 is possible.

Such a head fixing device of the present invention is a state in which the head restraint 15 is installed in FIG. 1, and the fastener 4 protrudes from the head rest 15. 2 shows an overall perspective view, FIGS. 3 and 4 show a state in which the fastener 4 is operated, and FIG. 5 shows a structure for operating the fastener 4.

The present invention having such a structure is installed inside the vehicle headrest 15 as shown in FIG. 1, and both ends of the main body 2 are installed to appear to the outside of the headrest 15, and the fastener 4 is provided. Is installed to protrude out of the head rest 15. Of course, the pressing plate 7 is installed to be located in the direction of the head of the seated person.

Normally, the fixture 4 protrudes due to an impact, and thus maintains a state as shown in FIG. 3 before fixing the head of the seated person. At this time, the pair of fasteners 4 on both sides is fixed in such a state that they are repelled outward by the elastic mechanism. In the embodiment of the elastic mechanism in FIG. 3, after the tension spring 12 is wound on the roller 13, one end is fixed to the fastener pin 11 and the other end is fixed to the main body 2. Therefore, the fixing pin 8 is inserted into the locking groove 3 of the fastener 4 and is engaged while supporting the elastic force springed out by the elastic force of the tension spring 12.

Therefore, in this state, the seated occupant may use the head rest 15 as in the prior art.

When the head of the seated person collides with the head rest 15 due to the impact of the automobile, the pressing plate 7 moves to overcome the elastic force of the compression spring 6. Therefore, the connecting table 5 connected to the pressing plate 7 and penetrating the main body 2 is moved, and the connecting plate 9 installed on the connecting table 5 is moved together.

As shown in FIG. 5, the connecting plate 9 is provided with fixing pins 8 inserted into the locking grooves 3 formed in the respective fasteners 4. Therefore, when the connecting plate (9) is moved, the fixing pin (8) is removed from the locking groove (3), the fixing fixture (4) was elastically supported by the tension spring 12 is freely protruded to the outside of the main body (2) I will go out. This protruded state is shown in FIG.

Therefore, when the head hits the head rest 15 due to an impact such as a car accident, the fixture 4 protrudes in a momentary motion, and the head is directly fixed in the state in which the head is in contact with the head rest 15. That is, the fasteners 4 protruding to both sides of the main body 2 hold the head of the seated person's chin, etc., thereby holding the head which is bounced farther faster than the body, thereby preventing an accident of broken neck. You can do it.

As the elastic mechanism, in the above description, the tension spring 12 and its structure are wound around the roller 13 so as to lengthen to improve its elastic force. However, in this case, which can be a compression spring in addition to the tension spring 12, the compression spring may be positioned between the main body 2 and the inner end of the fixture 4, so as to utilize the elastic force of the compression spring.

Then, when the fastener 4 is pushed into the fastener moving groove 1, the fastening groove 3 and the fixing pin 8 are refastened to prevent the following accident. Of course, the pressing plate 7 is returned to its original position by the compression spring 6 and the fixing pin 8 installed on the connecting plate 9 opposite to the connecting table 5 is inserted into the locking groove 3.

As described above, the present invention provides a structure in which the fastener 4 protrudes due to the impact of the head when the head hits the headrest 15 due to the impact of an automobile accident, thereby fixing the seat of the seated person. Due to the characteristics of the body's behavior, the head is displaced before the body and the displacement is large, thereby preventing the neckbone from breaking.

Claims (3)

A main body 2 having a circular arc-shaped fixing tool moving groove 1 symmetrically formed therein; An arc-shaped fastener (4) inserted and installed while winning the elastic force of the elastic mechanism in each of the fastener moving grooves (1), and the locking grooves (3) are drilled at the inner end portions; A connecting rod 5 installed through the center of the main body 2 to move freely; A pressing plate 7 fixedly installed to be elastically supported by the main body 2 and the compression spring 6 at the end positioned inside the arc of the main body 2 of the ends of the connecting table 5; The connecting plate 9 is fixedly installed at the end portion located on the outer side of the arc of the main body 2 of the end of the connecting table 5, the fixing pin 8 is inserted into the locking groove 3 of the fastener 4 It is configured to include; While the elastic force of the elastic mechanism is inserted into the fixing pin (8) to the locking groove (3) of the two fasteners (4) inserted into the fastener moving groove (1), the pressing plate (7) is the main body (2) When moving to the outer side of the circular arc of the fixed pin (8) is separated from the locking groove (3) by the elastic force of the elastic mechanism, the fastener (4) is characterized in that it is configured to protrude to the outside of the main body (2) Head restraint. The main body (2) is in communication with the fixture moving groove (1), the pin moving groove (10) is formed long along the moving direction of the fixture (4); A fixture pin 11 is installed at the inner end of the fixture 4 so as to protrude to the outside of the pin moving groove 10; The elastic mechanism is a head fixing device for a head restraint for the vehicle head consisting of a tension spring (12), both ends of which are fixed to the outer end of the main body (2) and the fixture pin (11). The main body (2) is in communication with the fixture moving groove (1), the pin moving groove (10) is formed long along the moving direction of the fixture (4); A fixture pin 11 is installed at the inner end of the fixture 4 so as to protrude to the outside of the pin moving groove 10; The elastic mechanism includes a roller 13 installed at an outer end of the main body 2 and a fastening pin at one end thereof fixed to the fastener pin 11 and pivoted on the roller 13 so that the other end is installed at the center of the main body 2. Head restraint device for an automobile head rest, comprising a tension spring (12) fixed to (14).

Images