KR102007013B1 - Apparatus for folding a driver airbag cushion and method for folding the driver airbag cushion - Google Patents

Apparatus for folding a driver airbag cushion and method for folding the driver airbag cushion Download PDF

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Publication number
KR102007013B1
KR102007013B1 KR1020120153441A KR20120153441A KR102007013B1 KR 102007013 B1 KR102007013 B1 KR 102007013B1 KR 1020120153441 A KR1020120153441 A KR 1020120153441A KR 20120153441 A KR20120153441 A KR 20120153441A KR 102007013 B1 KR102007013 B1 KR 102007013B1
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South Korea
Prior art keywords
airbag cushion
plate
cushion
jig
pressing
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KR1020120153441A
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Korean (ko)
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KR20140083550A (en
Inventor
안중배
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현대모비스 주식회사
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Priority to KR1020120153441A priority Critical patent/KR102007013B1/en
Publication of KR20140083550A publication Critical patent/KR20140083550A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
    • B62D65/02—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components
    • B62D65/14—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components the sub-units or components being passenger compartment fittings, e.g. seats, linings, trim, instrument panels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/237—Inflatable members characterised by the way they are folded
    • B60R2021/2375—Folding devices

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Air Bags (AREA)

Abstract

There is provided a folding device and folding method of a driver's airbag cushion in which an airbag cushion can be inserted into the internal space of a mounting plate having various shapes of internal spaces without voids.
To this end, a folding device for a driver's airbag cushion according to an embodiment of the present invention includes a first plate on which an airbag cushion is folded, a fixing jig for fixing a center portion of the airbag cushion placed on the first plate, A plurality of first pressing jigs inserted between the first plate and the second plate to press the periphery of the airbag cushion inward to divide the airbag cushion into a plurality of pieces in the circumferential direction; A plurality of second pressing jigs inserted between the first plate and the second plate for pressing the periphery of the airbag cushion divided by the plurality of first pressing jigs inward to compress the airbag cushion; A pusher for pushing and inserting the airbag cushion compressed by the plurality of second pressing jigs into a mounting plate disposed below the first plate, Embedded after the airbag cushion enclosed in cushion cover includes a sealing jig for bonding the cushion cover.

Description

TECHNICAL FIELD [0001] The present invention relates to a folding device and a folding method for a driver's airbag cushion,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folding device and a folding method for a driver's airbag cushion, and more particularly, to a folding device for a driver's airbag cushion in which an airbag cushion can be inserted into the internal space of a mounting plate having various shapes, And a folding method.

BACKGROUND ART [0002] Generally, an automobile is provided with an airbag device, which is a safety device that protects an occupant by inflating an airbag cushion by inflow of gas from an inflator when a car accident occurs.

The airbag device is installed on each part of the vehicle as needed. The airbag device includes a driver's airbag device mounted on the steering wheel to protect the driver sitting on the driver's seat, A front passenger seat airbag device, and a curtain airbag device mounted along a roof rail to protect a side of a passenger.

The driver's airbag device includes an inflator for generating a gas and an airbag cushion connected to the inflator and protecting the driver by expanding and expanding the inflow of gas.

The airbag cushion is provided with a retainer having an inflator hole into which the inflator is inserted so that a head of the inflator is inserted into the inflator hole and then the inflator and the retainer are fastened through bolts to connect the airbag cushion and the inflator .

The driver's airbag cushion is folded and inserted into a mounting plate disposed inside the steering wheel. When the gas generated from the inflator flows, the driver's airbag cushion expands and expands to protect the driver.

However, depending on the type of the steering wheel, the mounting plate may have various shapes, so that the mounting plate has various shapes for the inner space for inserting the airbag cushion.

Therefore, when the driver's airbag cushion is folded into one shape, when the airbag cushion is folded and inserted into the internal space of the mounting plate having various internal spaces, an empty space is formed between the inserted airbag cushion and the mounting plate The airbag cushion can not be properly deployed, which adversely affects the deployment performance of the airbag cushion.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a folding device and a folding method of a driver's airbag cushion in which an airbag cushion can be inserted into the internal space of a mounting plate having various shapes of internal spaces without voids.

The problems of the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a folding device for a driver's seat airbag cushion, comprising: a first plate on which an airbag cushion is folded to be folded; a fixing member for fixing a center portion of the airbag cushion, The airbag cushion according to any one of claims 1 to 3, wherein the airbag cushion comprises a plurality of airbag cushions, a second plate that covers the fixed airbag cushion, and a plurality of airbag cushions inserted between the first and second plates, And a plurality of second pressurizing jigs inserted between the first and second plates and pressing the circumference of the airbag cushion divided into a plurality of parts by the plurality of first pressing jigs inward to compress the airbag cushion, A pusher for pushing and inserting the airbag cushion compressed by the plurality of second pressing jigs into a mounting plate disposed on the lower side of the first plate, After wrapping the airbag cushion into the counting plate to cushion cover it includes a sealing jig for bonding the cushion cover.

A method of folding a driver's airbag cushion according to an embodiment of the present invention includes the steps of placing an airbag cushion on a first plate and fixing a center portion of the airbag cushion, covering the fixed airbag cushion with a second plate, A step of inserting a plurality of first pressing jigs between the first plate and the second plate to press the periphery of the airbag cushion inward to divide the airbag cushion into a plurality of pieces in the circumferential direction, Compressing the airbag cushion by pressing the periphery of the airbag cushion divided by the plurality of first pressing jigs into the space between the first and second plates and compressing the airbag cushion, Wherein the airbag cushion is inserted into the mounting plate by pushing out the airbag cushion compressed by the airbag cushion, Then enclosed in cushion cover and a step of bonding the cushion cover.

The details of other embodiments are included in the detailed description and drawings.

The folded airbag cushion according to the folding device of the driver airbag cushion and the folding method of the driver's airbag cushion according to the present invention is characterized in that the plurality of first pressing jig presses the periphery of the airbag cushion inward to divide the airbag cushion into a plurality of The plurality of second pressing jigs pressurize the periphery of the airbag cushion divided by the plurality of first pressing jigs to compress the airbag cushion so that the airbag cushion is in contact with the inner space of the mounting plate And can be inserted into the mounting plate without voids.

Further, the pusher pushes the airbag cushion, which is compressed by the second pressing jig and is folded, to insert the airbag cushion into the mounting plate, and then the sealing jig surrounds the airbag cushion with the cushion cover, The folding process of the airbag cushion and the inserting process are integrated to simplify the process.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

1 is a rear view showing a driver's airbag cushion folded by a folding device of a driver's airbag cushion according to an embodiment of the present invention;
2 is a perspective view showing a folding device for a driver's seat airbag cushion according to an embodiment of the present invention,
Fig. 3 is a perspective view showing a state in which the airbag cushion is placed on the first plate shown in Fig. 2,
4 is a side sectional view showing a folding device for a driver's airbag cushion according to an embodiment of the present invention,
5 is a view showing the bottom surface of the second plate shown in Fig. 2,
Fig. 6 is a top view of the first plate shown in Fig. 2,
7 is a view showing a process in which the second plate covers the airbag cushion placed on the first plate,
8 is a view showing that the fixing jig shown in Fig. 4 is inserted into the inflator hole to fix the retainer, Fig.
9 is a plan view showing that the airbag cushion is pressed by the first pressing jig of the folding device of the driver's airbag cushion according to the embodiment of the present invention,
10 is a plan view showing that the airbag cushion shown in Fig. 9 is pressed and compressed by the second pressing jig of the folding device of the driver's airbag cushion according to the embodiment of the present invention, Fig.
Fig. 11 is a side sectional view showing that the airbag cushion shown in Fig. 9 is pressed and compressed by the second pressing jig of the folding device of the driver's airbag cushion according to the embodiment of the present invention, Fig.
Fig. 12 is a view showing that the airbag cushion shown in Fig. 11 is inserted into the mounting plate by the pusher of the folding device of the driver's airbag cushion according to the embodiment of the present invention,
13 is a view showing the cushion cover being joined after the airbag cushion shown in FIG. 12 is wrapped by the cushion cover by the sealing jig of the folding device of the driver's airbag cushion according to the embodiment of the present invention,
14 is a flowchart illustrating a method of folding a driver's airbag cushion according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish them, will become apparent by reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.

Hereinafter, a folding device and a folding method of a driver's airbag cushion according to an embodiment of the present invention will be described with reference to the drawings.

1 is a rear view of a driver's airbag cushion folded by a folding device of a driver's airbag cushion according to an embodiment of the present invention.

Referring to FIG. 1, a driver's airbag cushion 10 folded by a folding device of a driver's airbag cushion according to an embodiment of the present invention is formed in a circular shape. A retainer (15) is inserted into the center of the airbag cushion (10) to be coupled to the back surface of the airbag cushion (10). The retainer 15 has an inflator hole 15a formed at the center thereof. The inflator is connected to the airbag cushion 10 so that the gas generated at the time of an accident is connected to the airbag cushion 10 ). ≪ / RTI > A vent hole (12) through which the gas generated from the inflator is discharged is formed on the back surface of the airbag cushion (10). When the gas generated from the inflator flows into the airbag cushion 10, the airbag cushion 10 inflates to a predetermined size and then discharges the gas through the vent hole 12 to maintain an appropriate pressure for protecting the driver.

FIG. 2 is a perspective view showing a folding device for a driver's airbag cushion according to an embodiment of the present invention, FIG. 3 is a perspective view showing a state where the airbag cushion is placed on the first plate shown in FIG. Fig. 2 is a side cross-sectional view showing a folding device of a driver's airbag cushion according to the present invention.

2 to 4, a folding device 100 for a driver's airbag cushion according to an embodiment of the present invention includes a base plate 100 supported by a plurality of legs 5 coupled to the lower side, A first plate 20 which is disposed on the base plate 3 so as to be folded so that the airbag cushion 10 is folded and a second plate 20 on which the center portion of the airbag cushion 10 placed on the first plate 20 is fixed A second plate 40 that covers the fixed airbag cushion 10 and a second plate 40 that is inserted between the first plate 20 and the second plate 40 to guide the circumference of the airbag cushion 10 inwardly A plurality of first pressing jigs 50 inserted between the first and second plates 20 and 40 to press the airbag cushion 10 in the circumferential direction and a plurality of first pressing jigs 50, A plurality of second pressing jigs 60 for compressing the airbag cushion 10 by pressing the periphery of the airbag cushion 10 divided in plurality by the plurality of second pressing jigs 60, A pusher 70 for pushing and folding the airbag cushion 10 that has been folded and completed by the airbag cushion 10 to the mounting plate 1 disposed on the lower side of the first plate 20, 10) is wrapped around the cushion cover (7) and then the cushion cover (7) is joined.

The base plate 3 is formed in a rectangular shape having a sufficient area to which the first plate 20, the first pressing jig 50, and the second pressing jig 60 can be installed. The fixing jig 30 is vertically movably arranged on the lower side of the base plate 3 and the second plate 40 is arranged on the upper side of the base plate 3 so as to be movable up and down.

The first plate 20 is formed with a fixing jig passage hole 25 through which the fixing jig 30 passes. The airbag cushion 10 is placed on the upper side of the first plate 20 with the rear surface on which the retainer 15 is disposed. At this time, the airbag cushion 10 is arranged so that the inflator hole 15a formed in the retainer 15 communicates with the fixing jig through-hole 25. [

The fixing jig 30 is inserted into the fixing jig passage hole 25 and is inserted into the inflator hole 15a formed in the retainer 15 so as to be vertically movable below the first plate 20, The central portion of the airbag cushion 10 can be fixed. The stationary jig 30 can be moved up and down by being connected to a cylinder device operated by pneumatic or hydraulic pressure.

The second plate (40) is arranged so as to be movable upward and downward from the first plate (20). The second plate 40 can also be moved up and down by being connected to a cylinder device operated by pneumatic or hydraulic pressure.

The second plate 40 is formed in a circular shape having a size to cover the airbag cushion 10 placed on the first plate 20. Here, the meaning that the second plate 40 covers the airbag cushion 10 placed on the first plate 20 does not mean that the airbag cushion 10 is completely covered, but the first pressurizing jig 50 and the second The airbag cushion 10 is arranged to be spaced upward from the first plate 20 so that the pressure jig 60 can be inserted between the first plate 20 and the second plate 40, 60 and the second pressing jig 60 so as not to be convex upward.

A through hole 45 through which the pusher 70 passes is formed at the center of the second plate 40 so that the pusher 70 can push out the folded airbag cushion 10.

The pusher (70) is arranged to move up and down from the second plate (40). The pusher 70 can also be moved up and down in connection with a cylinder device operated by pneumatic or hydraulic pressure. When the airbag cushion 10 is folded by the first pressing jig 50 and the second pressing jig 60, the pusher 70 is moved downward and passes through the pusher passing hole 45 to pass through the airbag cushion 10, . Therefore, the folded airbag cushion 10 can be pulled downward through the fixing jig passage hole 25 formed in the first plate 20 and inserted into the mounting plate 1.

When the pusher 70 is moved downward so that the airbag cushion 10 compressed by the second pressing jig 60 can be inserted into the mounting plate 1 after passing through the fixing jig passage hole 25, It is preferable that the jig 30 is also moved downward with the pusher 70.

Here, the mounting plate 1 may be formed in various shapes such as a circular shape or a triangular shape depending on the type of the steering wheel, which is disposed at the center of the steering wheel by receiving the airbag cushion 10. [

The mounting plate 1 is disposed under the first plate 20 so as to accommodate the airbag cushion 10 when the airbag cushion 10 passes through the fixing jig passage hole 25 by the pusher 70 So that the folded airbag cushion 10 is compressed by the second pressing jig 60 and can be inserted after passing through the fixing jig passage hole 25.

The sealing jig 80 is disposed on the lower side from the base plate 3 and disposed on both sides with respect to the fixing jig 30.

Before the airbag cushion 10 compressed by the second pressing jig 60 is pushed by the pusher 70 and inserted into the mounting plate 1, the center of the cushion cover 7 is inserted into the mounting plate 1 . In this state, the two sealing jigs 80 hold the opposite ends of the cushion cover 7, respectively, and the compressed airbag cushion 10 is pushed by the pusher 70 and inserted into the mounting plate 1 The airbag cushion 10 is wrapped around the cushion cover 7 and both ends of the cushion cover 7 are joined to each other.

Each of the sealing jigs 80 includes a main body 82 and a slider 84 slidably protruding into the main body 82 and holding one end of the cushion cover 84. When the compressed airbag cushion 10 is inserted into the mounting plate 1, the respective bodies 82 are brought close to each other such that the respective sliders 84 abut and enter the respective bodies 82, The slider 84 generates heat by an external power source so that both ends of the cushion cover 7 are joined to each other. An elastic member 86 for providing an elastic restoring force to the slider 84 is disposed in the main body 82 so that the slider 84 can be protruded out of the main body 82 after the slider 84 is inserted into the main body 82 .

After the folded airbag cushion 10 has been moved by the pusher 70 and inserted directly into the mounting plate 1 as described above, the sealing jig 80 moves the airbag cushion 10 to the cushion cover 7 The folding process of the airbag cushion 10 and the inserting process can be integrated. That is, in the conventional folding process of the airbag cushion 10, the airbag cushion 10 is folded so that the airbag cushion 10 is sealed with the cushion cover 7 and then transferred to the inserting process. 7, the airbag cushion 10 was inserted into the mounting plate 1 together with the cushion cover 7 and housed therein. Since the airbag cushion 10 folded by the folding device of the driver airbag cushion according to the embodiment of the present invention is immediately inserted into the mounting plate 1 and then sealed with the cushion cover 7, The folding and inserting processes are integrated to simplify the process.

The plurality of first pressing jigs 50 and the plurality of second pressing jigs 60 are arranged alternately along the circumferential direction of the airbag cushion 10 on the upper side of the first plate 20, It is possible to pressurize the periphery of the inner side. The plurality of first pressing jigs 50 and the plurality of second pressing jigs 60 are formed of a cylinder device operated by pneumatic or hydraulic pressure and are linearly moved on the first plate 20, The circumference can be pressed inward. The first pressing jig 50 is provided at six equal intervals along the circumferential direction of the airbag cushion 10 and the second pressing jig 60 is provided at six equal intervals, And are arranged at regular intervals along the circumferential direction.

The first pressing jig 50 is provided with the first blade 55 at the end for pressing the periphery of the airbag cushion 10 and the second pressing jig 60 is provided at the end for pressing the circumference of the airbag cushion 10 A second blade is disposed.

The first blade 55 and the second blade 65 are formed at a height that can be inserted between the first plate 20 and the second plate 40.

The first blade 55 has a cross-sectional area such that the front end thereof can be in surface contact with the periphery of the airbag cushion 10 so as to divide the airbag cushion 10 into a plurality of pieces in the circumferential direction, And has a cross-sectional area that can be in surface contact with the cushion 10.

The second blade 65 has a second blade 65 and a second blade 65. The second blade 65 includes a second blade 65 and a second blade 65. The second blade 65 has a cross- The blade 65 is disposed. The second blade 65 is formed into a hexahedron having a rectangular cross section.

Since the first blade 55 and the second blade 65 are in surface contact with the periphery of the airbag cushion 10 in this way, the airbag cushion 10 is prevented from being damaged by the first blade 55 and the second blade 65 The folding shape of the airbag cushion 10 can be maintained by forming the periphery of the airbag cushion 10 to be a surface.

The first pressing jig 50 and the second pressing jig 60 will be described later with reference to Figs. 9 to 11, and the first and second pressing jigs 50, .

Fig. 5 is a view showing the upper surface of the first plate shown in Fig. 2, Fig. 6 is a view showing the bottom surface of the second plate shown in Fig. 2, Fig.

5 to 7, a plurality of first protrusions 22 are formed concentrically on the upper surface of the first plate 20 and a second protrusions 42 are formed on the lower surface of the second plate 40 A plurality is formed on the same image.

The plurality of first projections 22 are spaced apart from each other, and the plurality of second projections 42 are also spaced apart from each other.

When the second plate 40 is moved downward by the operation of the cylinder device, the second projections 42 are inserted between the first projections 22 and the first projections 22 are inserted into the second projections 42 The first projecting portion 22 and the second projecting portion 42 are formed.

After the airbag cushion 10 is placed on the upper side of the first plate 20 and the second plate 40 is moved downward by the operation of the cylinder device to cover the airbag cushion 10, Pressure. The airbag cushion 10 is pressed between the first plate 20 and the second plate 40 by the first projection 22 and the second projection 42 to form the projection 14 alternately up and down .

In this embodiment, the airbag cushion 10 is formed in a substantially circular shape. The first projections 22 of the first plate 20 and the second projections 42 of the second plate 40 are annular in shape corresponding to the shape of the circular airbag cushion 10, respectively. Therefore, the projecting portion 14 of the airbag cushion 10, which is pressurized by the first projecting portion 22 and the second projecting portion 42 and formed alternately up and down, is also annular.

The first protrusion 22 and the second protrusion 42 can be deformed into various shapes corresponding to the shape of the airbag cushion 10 without necessarily being formed in an annular shape. For example, if the airbag cushion 10 is formed in a substantially triangular shape, the first projection 22 and the second projection 42 may have a triangular band shape, respectively.

8 is a view showing that the fixing jig shown in Fig. 4 is inserted into the inflator hole to fix the retainer.

Referring to FIG. 8, the retainer 15 disposed inside the airbag cushion 10 is formed in a rectangular shape, and an inflator hole 15a is formed at a central portion thereof. The fixing jig 30 is provided with a fixing jig 30 protruding in the radial direction of the inflator hole 15a to fix the retainer 15 so that the fixing jig 30 can be inserted into the inflator hole 15a and then the airbag cushion 10 can be fixed A fixing pin 35 is formed.

The fixing pin 35 protrudes from both sides of the fixing jig 30 and is brought into close contact with the edge of the retainer 15 so that the retainer 15 is prevented from moving forward, When the retainer 15 is thus fixed, the central portion of the airbag cushion 10 placed on the first plate 20 is also prevented from moving to the front, back, left, and right sides, and is prevented from rotating.

9 is a plan view showing that the airbag cushion is pressed by the first pressing jig of the folding device of the driver's airbag cushion according to the embodiment of the present invention and divided into a plurality of parts.

9, when the second plate 40 covers the airbag cushion 10 placed on the first plate 20, the first pressing jig 50 is first operated so that the first blade 55 is moved to the first plate 20, The airbag cushion 10 is inserted into the space between the first plate 20 and the second plate 40 to press the periphery of the airbag cushion 10 inward to divide the airbag cushion 10 in plural in the circumferential direction. The airbag cushion 10 is radially divided into a plurality of parts in the circumferential direction by the first blades 55. [

FIG. 10 is a plan view showing that the airbag cushion shown in FIG. 9 is pressed and compressed by the second pressing jig of the folding device of the driver's airbag cushion according to the embodiment of the present invention. 9 is a side sectional view showing that the airbag cushion shown in Fig. 9 is pressed and compressed by the second pressing jig of the folding device of the airbag cushion. Fig.

10 and 11, after the airbag cushion 10 is divided into a plurality of pieces in the circumferential direction by the first blades 55, the second pressing jig 60 is operated so that the second blades 65 are engaged with the first The airbag cushion 10 is inserted between the plate 20 and the second plate 40 to press the periphery of the airbag cushion 10 divided by the first blade 55 inward to compress the airbag cushion 10, ) Is completed.

The folding device 100 of the driver's airbag cushion according to the embodiment of the present invention changes the shape of the first blade 55 and the shape of the second blade 65 and changes the amount of movement of the first pressing jig 50 and the distance The folding shape of the airbag cushion 10 can be changed by changing the amount of movement of the pressing jig 60. [ That is, the mounting plate 1 is formed in a circular shape or a triangle, and the inner space of the mounting plate 1 for inserting the airbag cushion 10 is formed into a circular shape or a triangle . Therefore, when the movement amounts of the plurality of first pressing jigs 50 and the plurality of second pressing jigs 60 are made the same, the airbag cushion 10 is compressed into a circular shape as shown in FIG. 10 to have a circular inner space The shape of the first blade 55 and the shape of the second blade 65 can be changed and the amount of movement of the first pressing jig 50 and the moving amount of the second pressing jig 60 can be changed, The airbag cushion 10 can be compressed into a triangle by changing the amount of movement and inserted into the mounting plate 1 having an internal space of a triangle.

The airbag cushion 10 is folded in correspondence with the shape of the inner space of the mounting plate 1 so that the airbag cushion 10 is inserted into the inner space of the mounting plate 1, It is possible to improve the deployment performance of the airbag cushion 10 and prevent the airbag cushion 10 from protruding over the mounting plate 1 after being inserted into the mounting plate 1 The appearance quality of the steering wheel can be improved.

12 is a view showing that the airbag cushion shown in FIG. 11 is inserted into the mounting plate by the pusher of the folding device of the driver's airbag cushion according to the embodiment of the present invention.

12, when the airbag cushion 10 is compressed by the second pressing jig 60 and folding is completed, the pusher 70 is moved downward, and the airbag cushion 10 passes through the pusher through- ). Therefore, the airbag cushion 10 can be pulled downward through the fixing jig passage hole 25 and inserted into the mounting plate 1. [

When the pusher 70 pushes the airbag cushion 10, the fixing jig 30 is moved downward together with the airbag cushion 10 to guide the airbag cushion 10 to be inserted into the mounting plate 1 .

It is preferable that the fixing jig 30 is disposed so as to be movable up and down through the mounting plate 1 in order to guide the airbag cushion 10 to be inserted into the mounting plate 1. [

After the airbag cushion 10 has been inserted into the mounting plate 1, the pusher 70 is moved upward and returned to its original position.

13 is a view showing the cushion cover being joined after the airbag cushion shown in Fig. 12 is wrapped by the cushion cover by the sealing jig of the folding device of the driver's airbag cushion according to the embodiment of the present invention.

13, after the airbag cushion 10 is completely inserted into the mounting plate 1 and the pusher 70 is returned to its original position, the two sealing jigs 80 are moved in a direction .

The ends of the cushion cover 7 held on the respective sliders 84 are brought into contact with each other by moving the sliders 84 of the respective sealing jigs 80 into contact with each other and into the respective bodies 82 do. At this time, external power is supplied to each slider 84, so that each slider 84 joins both ends of the cushion cover 7 while generating heat.

After the both ends of the cushion cover 7 are joined to each other, the respective sealing jigs 80 are returned to their original positions, and the fixing pins 35 are inserted into the fixing jig 30, The fixing jig 30 is moved downward and comes out of the mounting plate 1. [

14 is a flowchart illustrating a method of folding a driver's airbag cushion according to an embodiment of the present invention. Herein, the folding method of the driver's airbag cushion according to the embodiment of the present invention will be described in connection with the operation of the folding device of the driver's airbag cushion according to the embodiment of the present invention.

First, when the airbag cushion 10 is placed on the first plate 20 and the fixing jig 30 is inserted into the center of the airbag cushion 10, the fixing pin 35 protrudes from the fixing jig 30, , The central portion of the airbag cushion 10 is fixed (S10).

Thereafter, the second plate 40 is moved downward, and the fixed airbag cushion 10 is covered with the second plate 40 (S20). When the second plate 40 covers the airbag cushion 10 as described above, the airbag cushion 10 is separated from the first protrusion 22 formed on the first plate 20 and the second protrusion 22 formed on the second plate 40, And the projections 14 are formed alternately up and down. Thereafter, the second plate 40 is lifted slightly upward so that the second projecting portion 42 comes out between the first projecting portions 22.

Thereafter, the first pressing jig 50 is inserted between the first plate 20 and the second plate 40 so that the first blade 55 presses the periphery of the airbag cushion 10 inward, (S30).

Thereafter, a plurality of second pressing jigs 60 are inserted between the first plate 20 and the second plate 40, and the second blade 65 is divided into a plurality of pieces by the plurality of first pressing jigs 50 The folding of the airbag cushion 10 is completed by pressing the periphery of the airbag cushion 10 inward to compress the airbag cushion 10 (S40).

Thereafter, when the pusher 70 is moved downward to push the airbag cushion 10 compressed by the second pressing jig 60 after passing through the pusher passing hole 45, Passes through the through hole 25, and is inserted into the mounting plate 1 (S50).

After the airbag cushion 10 having the sealing jig 80 inserted in the mounting plate 1 is wrapped around the cushion cover 7, both ends of the cushion cover 7 are joined to each other (S60).

As described above, the folded airbag cushion 10 according to the folding device of the driver's airbag cushion and the folding method of the driver's airbag cushion according to the present invention is configured such that a plurality of the first pressing jig 50 is located on the inner side of the airbag cushion 10 The airbag cushion 10 is divided into a plurality of portions in the circumferential direction and then the plurality of second pressing jigs 60 are divided into a plurality of divided airbag cushions 10 by the plurality of first pressing jigs 50, The airbag cushion 10 can be folded into a shape corresponding to the internal space of the mounting plate 1 and inserted into the mounting plate 1 without any space.

The airbag cushion 10 compressed by the second pressing jig 60 and then folded is pushed by the pusher 70 to insert the airbag cushion 10 into the mounting plate 1, The folding process and the inserting process of the airbag cushion 10 are integrated so that the process is simplified because the cushion cover 7 is joined while the airbag cushion 10 is wrapped around the cushion cover 7. [

It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative and non-restrictive in every respect. The scope of the present invention is defined by the appended claims rather than the foregoing detailed description, and all changes or modifications derived from the meaning and scope of the claims and the equivalents thereof are included in the scope of the present invention Should be interpreted.

1: Mounting plate 10: Airbag cushion
15: retainer 15a: inflator hole
20: first plate 25: fixing jig passing hole
30: Fixing jig 35: Fixing pin
40: second plate 45: pusher through hole
50: first pressing jig 55: first blade
60: second pressing jig 65: second blade
70: pusher 80: sealing jig
82: main body 84: slider

Claims (16)

A first plate on which the airbag cushion is placed to be folded;
A fixing jig for fixing a center portion of the airbag cushion placed on the first plate;
A second plate covering the fixed airbag cushion;
A plurality of first pressing jigs inserted between the first plate and the second plate to press the periphery of the airbag cushion inward to divide the airbag cushion into a plurality of pieces in the circumferential direction;
A plurality of second pressing jigs inserted between the first plate and the second plate to press the periphery of the airbag cushion divided by the plurality of first pressing jigs inward to compress the airbag cushion;
A pusher for pushing and inserting the airbag cushion compressed by the plurality of second pressing jigs into a mounting plate disposed below the first plate; And
And an enclosing jig for enclosing the airbag cushion inserted in the mounting plate with a cushion cover and then joining the cushion cover. The method according to claim 1,
Wherein a plurality of first projections are formed concentrically on the first plate,
Wherein a plurality of second protrusions are formed on the second plate, the second protrusions being inserted between the plurality of first protrusions,
Wherein when the second plate covers the fixed airbag cushion, the airbag cushion is pressed by the first projection and the second projection and protruded up and down alternately. The method according to claim 1,
Wherein a retainer having an inflator hole for inserting an inflator for generating gas is disposed at a central portion of the airbag cushion,
Wherein the first plate has a fixing jig passage hole through which the fixing jig passes,
Wherein the fixing jig is inserted into the fixing jig passage hole and then inserted into the inflator hole so as to fix the center portion of the airbag cushion, thereby fixing the retainer. The method according to claim 3,
And a fixing pin protruding in the radial direction of the inflator hole to fix the retainer is formed in the fixing jig so that the fixing jig can fix the retainer after the fixing jig is inserted into the inflator hole. The method according to claim 3,
Wherein the pusher is moved downward together with the fixing jig so that the airbag cushion compressed by the second pressing jig can be inserted into the mounting plate after passing through the fixing jig passage hole. The method according to claim 1,
Wherein the second plate is provided with a pusher through hole through which the pusher passes so that the pusher can push the airbag cushion. The method according to claim 1,
Wherein the plurality of first pressing jigs and the plurality of second pressing jigs are alternately arranged along the circumferential direction of the airbag cushion. The method according to claim 1,
Wherein the first pressing jig has a cross sectional area such that a front end thereof is in surface contact with the periphery of the airbag cushion so as to divide the airbag cushion into a plurality of pieces in the circumferential direction, A first blade having a cross-sectional area that can be reduced,
Wherein the second pressing jig is provided with a second blade having a cross sectional area such that a front end thereof can be in surface contact with the periphery of the airbag cushion so as to be able to compress the airbag cushions divided by the first blade, Device. The method according to claim 1,
Wherein the sealing jig is disposed on both sides of the fixing jig so as to hold both ends of the cushion cover inserted into the mounting plate,
Wherein each of the sealing jigs includes a body and a slider protruding from the body and slidably holding one end of the cushion cover,
When the airbag cushion is inserted into the mounting plate, the respective sliders come close to each other such that the sliders come into contact with the inside of the respective main bodies, and then the respective sliders generate heat by an external power source And the opposite ends of the cushion cover are joined to each other. Placing the airbag cushion on the first plate and fixing the center portion of the airbag cushion;
Covering the fixed airbag cushion with a second plate;
A plurality of first pressing jigs are inserted between the first plate and the second plate to press the periphery of the airbag cushion inward to divide the airbag cushion in plural in the circumferential direction;
Compressing the airbag cushion by pressing the periphery of the airbag cushion divided into a plurality of portions by the plurality of first pressing jigs, the plurality of second pressing jigs being inserted between the first plate and the second plate;
The pusher pushing the airbag cushion compressed by the second pressing jig, thereby inserting the airbag cushion into the mounting plate; And
And sealing the cushion cover after the sealing jig surrounds the airbag cushion inserted into the mounting plate with the cushion cover. The method of claim 10,
Wherein a plurality of first projections are formed concentrically on the first plate,
Wherein a plurality of second protrusions are formed on the second plate, the second protrusions being inserted between the plurality of first protrusions,
Wherein when the second plate covers the fixed airbag cushion, the airbag cushion is pressed by the first projection and the second projection and protruded up and down alternately. The method of claim 10,
Wherein a retainer having an inflator hole for inserting an inflator for generating gas is disposed at a central portion of the airbag cushion,
Wherein the fixing jig is inserted into the fixing jig passage hole formed in the first plate so as to fix the center portion of the airbag cushion and then inserted into the inflator hole to fix the retainer. The method of claim 12,
Wherein a fixing pin formed on the fixing jig protrudes in a radial direction of the inflator hole to fix the retainer so that the fixing jig can secure the airbag cushion after the inflator is inserted into the inflator hole. The method of claim 12,
Wherein the pusher is moved downward together with the fixing jig so that the airbag cushion compressed by the second pressing jig can be inserted into the mounting plate after passing through the fixing jig passage hole. The method of claim 10,
Wherein the pusher pushes the compressed airbag cushion through the pusher through-hole formed in the second plate. The method of claim 10,
The enclosing jig is disposed on both sides of the fixing jig for fixing the center portion of the airbag cushion, respectively holding the both ends of the cushion cover inserted into the mounting plate,
Wherein each of the sealing jigs includes a body and a slider protruding from the body and slidably holding one end of the cushion cover,
When the airbag cushion is inserted into the mounting plate, the respective sliders come close to each other such that the sliders come into contact with the inside of the respective main bodies, and then the respective sliders generate heat by an external power source And the opposite ends of the cushion cover are joined to each other.
KR1020120153441A 2012-12-26 2012-12-26 Apparatus for folding a driver airbag cushion and method for folding the driver airbag cushion KR102007013B1 (en)

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KR102208224B1 (en) * 2014-09-23 2021-01-26 현대모비스 주식회사 Apparatus for folding a driver airbag cushion and method for folding the driver airbag cushion
KR102195361B1 (en) * 2014-07-25 2020-12-28 현대모비스 주식회사 Folding apparatus of the driver airbag cushion
KR102457263B1 (en) * 2015-12-10 2022-10-20 현대모비스 주식회사 Apparatus for assembling a passenger air bag and method for assembling the passenger air bag
CN109532491A (en) * 2018-11-14 2019-03-29 安徽蓝德自动化科技有限公司 A kind of convenient mounting structure and its installation method of instrument and meter for automation

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KR100524126B1 (en) * 2003-12-31 2005-10-26 델파이코리아 주식회사 Apparatus for the folding of airbag

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