KR20190077938A - Switch type Headrest for vehicle - Google Patents

Abstract

The present invention relates to a switch type headrest of a vehicle, which is configured to fold and unfold left and right side wing outs at the same time by interlocking the left and right side wing outs. A switch type headrest of a vehicle according to an embodiment of the present invention comprises: a first side wing out configured to be folded in one direction of the headrest; a second side wing out configured to be folded in the same direction as the direction of the first side wing out to be symmetrical with the first side wing out; a first shaft portion which is a rotary shaft of the first side wing out and includes a main gear; a second shaft portion which is a rotary shaft of the second side wing out and includes a sub gear configured so that the second side wing out rotates in a direction opposite to the direction of the first side wing out in response to the movement of the main gear; and a locking lever which faces the main gear and restricts the movements of the first and second side wing outs.

Description

[0001] The present invention relates to a switch type headrest for a vehicle,

The present invention relates to a switchable headrest of a vehicle, and more preferably, constitutes left and right side wing-outs corresponding to each other so that left and right side wing-outs are integrally folded according to a user's request, The present invention relates to a switchable headrest of a vehicle configured to be unfolded.

Generally, the vehicle is provided with a plurality of seats for seating the passengers. Such a seat is designed so that the driver can sit in a comfortable posture so that he / she does not feel fatigued even when driving over a long distance. The seat cushion is slidably mounted on the floor of the room in front and rear, And a seatback.

Further, the headrest for a vehicle prevents damage to the neck and head by necking when the vehicle collides, and maintains a comfortable riding comfort by closely contacting the head during normal driving. The headrest is composed of a cushion pad and a headrest pole connected to the seat frame, the headrest pole being installed at the upper end of the backrest of the seat to support the head and neck portions of the rider.

The headrest pawl is connected to the seat frame so that the height of the headrest pawl can be raised or lowered. In addition, conventionally, not only the height of the headrest but also the wing-out of the headrest, how much the head comfortably and comfortably covers is an important part.

FIG. 1 is a perspective view of a conventional apparatus for adjusting the position of a headrest in Korean Patent Laid-Open No. 10-0775371 B1. The apparatus includes left and right supporting portions projecting upward at intervals on both sides of a top of a sheet; A headrest interposed between the left and right support portions to support the head and allowed to move in the forward and backward directions; A left and right fixing guide member embedded in the left and right support portions such that a surface thereof is exposed; An elastic leaf spring embedded in the headrest with an elastic force and fixed at both ends to the left and right fixing guide members; A through hole formed through the headrest to receive the elastic leaf spring and to have a space allowing a change in the bent shape of the elastic leaf spring; And a fixed hinge pin projecting upward and downward at a central portion of the elastic leaf spring and being fixedly mounted on the headrest.

However, the above-mentioned prior art discloses a configuration in which each wing side is adjusted through a hinge, and a user is required to perform a plurality of operations.

In addition, in the above conventional art, both side wings must be operated while the headrest is viewed from the front, and it is difficult to precisely adjust the wing side so as to feel comfortable in a seating state.

It should be understood that the foregoing description of the background art is merely for the purpose of promoting an understanding of the background of the present invention and is not to be construed as an admission that the prior art is known to those skilled in the art.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a wing-out headrest which is integrally formed so that the left and right side wing-outs interlock with each other.

Further, the present invention is intended to provide a headrest in which left and right side wing-outs are configured to be simultaneously restored corresponding to switch inputs.

The objects of the present invention are not limited to the above-mentioned objects, and other objects of the present invention which are not mentioned can be understood by the following description and can be more clearly understood by the embodiments of the present invention. Further, the objects of the present invention can be realized by the means shown in the claims and their combinations.

A switchable headrest of a vehicle for achieving the object of the present invention includes the following configuration.

A first side wing out configured to fold in one direction of the headrest; A second side wing out that folds in the same direction to be symmetrical with the first side wing out; A first shaft portion including a main gear, the first shaft portion being a rotation shaft of the first side wing out; A second shaft including a sub-gear, the sub-gear being configured to rotate with the rotation axis of the second side wing-out in such a manner that the second side wing-out rotates in opposition to the first side wing-out in response to movement of the main gear; And a locking lever facing the main gear and restricting movement of the first and second side wing-outs.

The locking lever may include a locking cover whose one end is configured to face the switch; A locking pawl configured to face the main gear; And a locking spring for providing an elastic force to the locking pawl inside the locking cover.

Further, the main gear is configured such that its rotation is restricted by the locking pawl.

Further, the main gear, which faces the locking pawl, further includes a stopper for restricting the amount of rotation.

And an elastic member located at least one of the first shaft portion and the second shaft portion and providing an elastic force so as to spread the first side wing-out and the second side wing-out, Provide a headrest.

The switchable headrest of the vehicle further includes a switch located at one end of the locking lever.

The switchable headrest of the vehicle is further characterized in that, when the switch is applied, the first side wing-out and the second side wing-out are opened.

And a stopper positioned between the main gear and the sub gear such that the first side wing-out and the second side wing-out extend to a horizontal state when the switch is applied. Thereby providing a switchable headrest.

The switchable headrest of the vehicle further includes a center portion located between the first side wing-out and the second side wing-out.

Further, the locking pawl is configured to include a protrusion configured to correspond to a gear tooth of the main gear.

The present invention can obtain the following effects by the above-described embodiment, the constitution described below, the combination, and the use relationship.

The present invention is configured such that even when a user folds one of the left and right side wing-outs, the entire head race is interlocked, thereby providing the convenience of operation.

In addition, the present invention provides a wing-out that is configured to be interlocked integrally, thereby providing the convenience of restoring the folded side wing-out.

Further, the present invention is configured to simultaneously operate the folded side wing outs located on both sides through the switch operation, and has an effect in terms of user convenience.

Fig. 1 shows, as a prior art, an apparatus for adjusting the position of a headrest.
2 is a perspective view of a switchable headrest of a vehicle according to one embodiment of the present invention.
Fig. 3 shows a configuration of a switch-type headrest folding state of a vehicle as an embodiment of the present invention.
Fig. 4 shows a configuration of a main gear and a locking lever in a locked state in a switchable headrest folding state of a vehicle according to an embodiment of the present invention.
Fig. 5 is a block diagram showing a state in which a switchable headrest of a vehicle is unfolded as an embodiment of the present invention.
Fig. 6 shows a configuration of a state in which a main gear and a locking lever are engaged in a state in which a switchable headrest of a vehicle is unfolded, according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments of the present invention can be modified in various forms, and the scope of the present invention should not be construed as being limited to the following embodiments. This embodiment is provided to more fully describe the present invention to those skilled in the art.

Also, the term "part" or the like in the description means a unit for processing at least one function or operation, which can be implemented by hardware or a combination of hardware.

In the present specification, the names of components are categorized into the first, second, and so on in order to distinguish the names of the components from each other in the same relation, and are not necessarily limited to those in the following description.

In addition, in the 'one direction' of the present invention, the headrest side wing out is folded on the same plane, which does not mean a fixed one direction.

The present invention relates to a switchable headrest (100) of a vehicle, comprising a wing-out headrest (100) configured to simultaneously fold opposite side wing-outs when at least one of the left and right side wing- .

More preferably, the side wing-out of the present invention comprises a first side wing-out 110 and a second side wing-out 120, wherein the first side wing-out 110 and the second side wing- Are configured on the left and right sides so as to correspond to each other with the center portion 130 of the headrest 100 as a center.

The first side wing-out 110 and the second side wing-out 120 are configured to simultaneously fold in the same direction. The first side wing-out 110 and the second side wing- The first shaft portion 140 and the second shaft portion 150 constitute a second shaft portion 150 as a rotation axis of the wing-out 120. The first shaft portion 140 and the second shaft portion 150 are interlocked with each other.

Therefore, when one side wing-out is folded, the first and second side wing-out parts 120 are folded so as to protrude in the same direction by the first and second shaft parts 150 interlocked to rotate in opposite directions to each other. .

2 shows a perspective view of a switchable headrest 100 of a vehicle according to one embodiment of the present invention.

In the case of the headrest 100 of the present invention, the first and second side wing-outs 120 are configured to be symmetrical to each other, which is configured to include a side wing-out in both directions.

In the case of the first and second side wing-outs 110 and 120 structured as described above, it is possible to further include a cushion part configured at a position facing the driver or the user, and configured to return to the home position of the user.

A first axis 140 is shown as a central axis for performing rotation of the first side wing-out 110 and a second axis 150 is provided for performing rotation of the second side wing- Lt; / RTI >

The first shaft portion 140 is configured to include the main gear 141 and the sub gear 151 configured to interlock with the main gear 141 is configured to be positioned on the second shaft portion 150.

The main gear 141 located at the first shaft portion 140 is configured to be rotated in one direction at the request of the user and the sub gear 151 configured to be interlocked with the main gear 141 is rotated in the direction opposite to the main gear 141 As shown in Fig.

More preferably, the main gear 141 and the sub gear 151 may be composed of a spur gear configured to include at least a part of a gear shape. The main gear 141 and the sub gear 151 interlock with each other And may include an area configured to be rotatable.

That is, when the main gear 141 rotates, the sub gear 151 of the sub gear 151 is configured to rotate in a direction opposite to the rotation of the gear blade 142 of the main gear 141, Out 110 and the second side wing-out 120 protrude in the same direction.

And a locking lever 200 facing the main gear 141. The locking lever 200 is fixed so that the main gear 141 can be maintained in a folded state and the first side wing- To limit the maximum angle of folding.

More preferably, the locking pawl 220 located in the locking lever 200 is configured to include the protrusion 221 to face the gear blade 142 of the main gear 141. According to an embodiment of the present invention, the first side wing-out 110 may include a protrusion 221 inserted into a gear tooth 142 of the main gear 141, And the folding angle is fixed in multiple stages.

More preferably, the locking pawl 220 is configured to face a gear blade 142 that is located in a portion of the main gear 141. The locking pawl 220 is configured to face the side gear 142 through a main gear 141 configuration, Is configured to limit the folding angle of the wing-outs (110, 120).

That is, the main gear 141 is configured to configure the stop 143 that does not include the gear teeth 142 to restrict the rotation of the wing-out. In the stop 143, by the locking pawl 220 A fixing force is not applied to the main gear 141 so that the side wing out is not collapsed beyond the maximum folding position.

In summary, the main gear 141 includes a gear tooth 142 that is configured to be interlocked with the sub gear 151, and a separate gear tooth 142 formed to be fixed by the locking pawl 220 can be formed have. In addition, the main gear 141 is configured not to be fixed by the locking pawl 220, including the stop 143 in which the gear tooth 142 is not present, in order to control the amount of rotation of the side wing-out.

The locking lever 200 is configured to face the main gear 141 and a locking cover 210 configured to face one end of the structure of the switch 300 configured to be exposed to the outside of the headrest 100, The locking pawl 220 is configured to fix the locking pawl 220 to the main gear 141 in accordance with the input of the switch 300 And includes a locking spring 230.

That is, the switch 300 of the present invention is configured to be exposed to the outside of the headrest 100, and the locking pawl 220 is configured to be disengaged from the main gear 141 in accordance with the input of the switch 300, The wing-out 110 and the second side wing-out 120 are configured to be unfolded.

Further, after the locking pawl 220 is disengaged from the main gear 141, the locking spring 230 is positioned inside the locking cover 210 so as to provide a certain elastic force to the locking pawl 220, .

In addition, in an embodiment of the present invention in which the first side wing-out 110 and the second side wing-out 120 are unfolded according to the input of the switch 300, the first shaft portion 140 or the second shaft- The first side wing-out part 110 and the second side parting part 150 may be separated from each other when the fixing force between the main gear 141 and the locking pawl 220 is released, And is configured to receive a tension in a direction in which the wing-out 120 is unfolded.

Therefore, when the switch 300 is input, the headrest 100 is configured to be turned around in a flat state.

Fig. 3 shows a folded headlamp 100 as an embodiment of the present invention. Fig. 4 shows the coupling relationship between the locking lever 200 and the main gear 141 in the folded state have.

As shown in the figure, the first side wing-out 110 is configured to rotate counterclockwise, and is configured in a gear-coupled fashion between the main gear 141 and the sub gear 151.

Further, the main gear 141 and the locking lever 200 are configured to face each other, and the first side wing-out 110 is configured to be fixed in a folded state.

In addition, the second side wing-out portion 120 is configured to fold and fold the first side wing-out portion 110 at the same angle as the folded angle. The main gear 141 and the sub gear 151 are coupled do.

4, when the first side wing-out 110 is in the folded state, the locking pawl 220 is positioned on the gear teeth of the main gear 141 as the configuration of the locking lever 200. [ Is inserted into the side wing outs (142) to provide a clamping force to the side wing outs (110, 120).

5 and 6 illustrate a configuration in which the coupling between the locking pawl 220 and the main gear 141 is released when an input of the switch 300 located at one end of the locking lever 200 exists, .

A locking spring 230 which is positioned inside the locking cover 210 and provides a predetermined elastic force to the locking pawl 220 is configured to be compressed in response to a user's input of the switch 300, The gear teeth of the main gear 141 coupled to the gears 221 and 221 are freely rotatable.

The elastic member 160 configured to cooperate with at least one of the first shaft portion 140 and the second shaft portion 150 provides a predetermined tension in a direction in which the side wing outs 110 and 120 are deployed, 141 and the sub gear 151 rotate.

The first shaft portion 140 and the second shaft portion 150 are rotated to unfold the side wing outs 110 and 120 by the tension applied by the elastic member 160 and the first shaft portion 140 and the second shaft portion 150 are rotated, The main gear 141 and the sub gear 151 disposed on the first and second shaft portions 150 and 150 are also configured to rotate in the same direction as the first and second shaft portions 140 and 150.

More preferably, the locking spring 230 is configured to be coupled to the locking pawl 220 and is positioned in the longitudinal direction inside the locking cover 210, and the locking pawl 220 ). ≪ / RTI >

6, the main gear 141 and the sub gear 151 interlock with each other and can freely rotate through the structure of the locking pawl 220 located between the main gear 141 and the sub gear 151 And an elastic member 160 positioned on at least one of the first shaft portion 140 including the main gear 141 and the second shaft portion 150 including the sub gear 151, Respectively.

More preferably, when the switch 300 is applied and the fixed state of the main gear 141 is released, the first side wing-out 110 and the second side wing-out 120 are configured to expand to a horizontal state with respect to each other .

In order to adjust the angle at which the first side wing-out 110 and the second side wing-out 120 are opened and absorb the shock generated when the headrest 100 is deployed, the main gear 141 and the sub gear 151 A stopper 152 may be included between the stopper 152 and the stopper 152.

The stopper 152 located on the sub gear 151 faces the main gear 141 such that the first side wing-out 110 and the second side wing-out 120 are horizontally opened May be configured to limit rotation.

The foregoing detailed description is illustrative of the present invention. In addition, the foregoing is intended to illustrate and explain the preferred embodiments of the present invention, and the present invention may be used in various other combinations, modifications, and environments. That is, it is possible to make changes or modifications within the scope of the concept of the invention disclosed herein, within the scope of the disclosure, and / or within the skill and knowledge of the art. The described embodiments are intended to illustrate the best mode for carrying out the technical idea of the present invention and various changes may be made in the specific applications and uses of the present invention. Accordingly, the detailed description of the invention is not intended to limit the invention to the disclosed embodiments. It is also to be understood that the appended claims are intended to cover such other embodiments.

100: Headrest
110: 1st side wing out
120: 2nd side wing out
130: center
140: first shaft portion
141: Main gear
142: gear tooth
143:
150: second shaft portion
151: sub gear
152: Stopper
160: elastic member
200: Locking lever
210: Locking cover
220: Locking pole
221: protrusion
230: Locking spring
300: Switch

Claims (10)

A first side wing out configured to fold in one direction of the headrest;
A second side wing out that folds in the same direction to be symmetrical with the first side wing out;
A first shaft portion including a main gear, the first shaft portion being a rotation shaft of the first side wing out;
A second shaft including a sub-gear, the sub-gear being configured to rotate with the rotation axis of the second side wing-out in such a manner that the second side wing-out rotates in opposition to the first side wing-out in response to movement of the main gear; And
And a locking lever facing the main gear and restricting movement of the first and second side wing-outs.
The method according to claim 1,
The locking lever
A locking cover configured to once face the switch;
A locking pawl configured to face the main gear; And
And a locking spring for providing an elastic force to the locking pawl inside the locking cover.
3. The method of claim 2,
And the main gear is configured to be restricted in rotation by the locking pawl.
The method of claim 3,
And the main gear facing the locking paw further comprises a stop for limiting the amount of rotation.
The method according to claim 1,
Further comprising an elastic member located in at least one of the first shaft portion and the second shaft portion to provide an elastic force such that the first side wing-out and the second side wing-out are opened, .
The method according to claim 1,
And a switch located at one end of the locking lever.
The method according to claim 6,
When the switch is applied,
Wherein the first side wing-out and the second side wing-out are configured to open.
The method according to claim 6,
When the switch is applied,
Further comprising a stopper positioned between the main gear and the sub gear such that the first side wing-out and the second side wing-out extend to a horizontal state.
The method according to claim 1,
And a center portion positioned between the first side wing-out and the second side wing-out.
3. The method of claim 2,
Wherein the locking pawl is configured to include a protrusion configured to correspond to a gear tooth of the main gear.

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