KR102556430B1 - Length adjustable armrest - Google Patents

Abstract

The present invention discloses a length-adjustable armrest that can freely adjust the length of an armrest installed on the side of a seat in the front and rear directions according to physical characteristics or preferences of passengers.
The length-adjustable armrest described above includes a lower cover fixed to the side of the seat, and an upper cover installed to be movable in the forward and backward directions with respect to the lower cover via a sliding unit, and the sliding unit is installed on the lower cover and has a length A base having ratchet-type first teeth along the direction, a housing installed on the upper cover and movably coupled to the base along the length direction, and a ratchet hinged to the housing and capable of tooth-engagement with the ratchet-type first teeth of the base. A rotary ratchet having a second tooth, a spring installed between the housing and the rotary ratchet and maintaining a tooth engagement between the ratchet first tooth of the base and the ratchet second tooth of the rotary ratchet, and installed in the housing and a fixing clip that constrains the behavior of the rotary ratchet and converts the tooth engagement between the ratchet-type first tooth part of the base and the ratchet-type second tooth part of the rotary ratchet into a release state.

Description

Length adjustable armrest {Length adjustable armrest}

The present invention relates to a length-adjustable armrest, and more particularly, to a length-adjustable armrest capable of variably adjusting the length of the armrest in the front and rear directions according to the physical characteristics or preferences of passengers.

In general, an armrest provided in a seat of a vehicle is installed in a hinged manner with respect to the side of the seat back, and is used by turning toward the front when necessary.

An armrest of such a sheet has been disclosed in a number of prior literature including Registered Patent No. 10-2218850.

By the way, since the armrest of the conventional seat is installed in a way that can pivot forward with respect to the seat back, it can be unfolded forward when necessary to support the load of the passenger's arm, but it can be lengthened in the front and rear directions according to the body shape or need of the passenger. It is a situation that does not have a function that can variably adjust the.

In particular, since the length of the armrest is designed to fit the standard body shape of a passenger, an adult with a relatively large body size cannot but feel much inconvenience in using the armrest to mount and support the armrest.

In addition, as demand for SUVs continues to increase, and in the case of second-row seats, the proportion of independent seats such as first-row seats, rather than bench-type or 6-to-4 separate and foldable seats, is increasing, so the length of the armrest The need for a length-adjustable armrest that can be freely adjusted is increasing.

Registered Patent No. 10-2218850

A technical problem to be solved by the present invention is to provide a length-adjustable armrest that can freely adjust the length of an armrest installed on the side of a seat in the front and rear directions according to physical characteristics or preferences of passengers.

The present invention for solving the above technical problem includes a lower cover fixed to the side of the seat, and an upper cover movably installed in the forward and backward directions with respect to the lower cover via a sliding unit, the sliding unit A base installed on the lower cover and having a ratchet-type first tooth portion along the longitudinal direction, a housing installed on the upper cover and movably coupled to the base along the longitudinal direction, a hinge coupled to the housing and a ratchet of the base A rotating ratchet having a ratchet-type second tooth portion capable of tooth engagement with the first tooth portion, installed between the housing and the rotation ratchet, and the ratchet-type first tooth portion of the base and the ratchet-type second tooth portion of the rotating ratchet A spring installed in the housing and restraining the motion of the rotary ratchet releases the tooth engagement between the ratchet-type first tooth portion of the base and the ratchet-type second tooth portion of the rotary ratchet. It is characterized in that it is provided with a fixing clip for switching to the state.

As an embodiment of the present invention, the rotating ratchet and the fixing clip include a restraining portion for converting the tooth engagement between the ratchet-shaped first tooth portion of the base and the ratchet-shaped second tooth portion of the rotating ratchet into a release state, The restraining part is characterized in that it consists of a protrusion formed on the fixing clip, and an accommodation groove formed at a position engageable with the protrusion in the rotating ratchet.

As an embodiment of the present invention, the fixing clip has a pair of legs in which an upper end is fixed to the bottom of the housing and a lower end protrudes toward the base, and the protrusions face each other at the pair of legs. It is characterized by being formed in.

As an embodiment of the present invention, the rotating ratchet has a through hole for hinge coupling to the housing via a shaft, and accommodation for coupling with the protrusion of the fixing clip on both sides of the ratchet-type second tooth portion It is characterized by having a groove.

As an embodiment of the present invention, the rotating ratchet is characterized in that it has a seating protrusion protruding upward for engagement with the lower end of the spring.

As an embodiment of the present invention, the housing includes a guide protrusion protruding downward along the longitudinal direction of the member for movable coupling with the base, and the base is provided with a guide protrusion of the housing in the longitudinal direction of the member for coupling with the guide protrusion of the housing. It is characterized by having a guide groove formed concave along the.

As an embodiment of the present invention, the sliding unit disengages the behavior posture of the ratchet-type second teeth of the rotary ratchet with respect to the ratchet-type first teeth of the base at the fully deployed position of the housing in the forward direction with respect to the base A front stopper that converts to a state, and a behavior posture of the ratchet-type second teeth of the rotating ratchet with respect to the ratchet-type first teeth of the base in the complete storage position of the housing in the backward direction with respect to the base. It is characterized in that it further comprises a rear stopper.

As an embodiment of the present invention, the front stopper has an upwardly inclined surface in the forward direction for releasing the tooth engagement with the ratchet-type first tooth portion of the base by lifting the ratchet-type second tooth portion of the rotary ratchet upward, The rear stopper is characterized in that it has an upward inclined surface in the backward direction for inducing tooth engagement with the ratchet-type first tooth portion of the base by lowering the ratchet-type second tooth portion of the rotary ratchet in a downward direction.

As another embodiment of the present invention, it includes a lower cover fixed to the side of the seat, and an upper cover movably installed in the forward and backward directions with respect to the lower cover via a sliding unit, wherein the sliding unit is attached to the lower cover. A lower slide installed and having an embossed insertion groove along the longitudinal direction, an upper slide installed on the upper cover and movably coupled to the lower slide along the longitudinal direction, and a lower slide installed on the upper slide and embossed on the lower slide. It is characterized by having an embossed spring having an elastic protrusion that can be inserted into the mold insertion groove.

As another embodiment of the present invention, the upper slide has a guide protrusion protruding downward along the longitudinal direction of the member for movable coupling with the lower slide, and the lower slide is coupled with the guide projection of the upper slide. It is characterized by having a guide groove formed concavely along the longitudinal direction of the member.

As another embodiment of the present invention, it is characterized in that it is configured to further include a stopper for limiting strokes in the forward and backward directions of the upper slide relative to the lower slide.

As another embodiment of the present invention, the lower slide has an opening for mounting the stopper, and the upper slide has a first slot portion for installing the emboss spring, and forward and backward directions for the stopper It is characterized by having a second slot for limiting the stroke of.

The length-adjustable armrest according to the embodiment of the present invention can freely adjust the length of the armrest installed on the side of the seat in the front and rear directions according to the physical characteristics or preferences of the passenger, thereby enhancing user convenience. In line with the trend of increasing application of independent seats, the development of an armrest that can freely adjust the length in the front and rear direction will actively respond to consumer demand and provide the effect of enhancing marketability.

1 is a perspective view showing a length-adjustable armrest according to a first embodiment of the present invention.
2 is a cross-sectional view showing a length-adjustable armrest according to a first embodiment of the present invention.
FIG. 3 is a perspective view showing a sliding unit, which is a main component in the length-adjustable armrest according to the first embodiment of the present invention, disassembled from an upper cover and a lower cover.
4 is an exploded perspective view of components of the sliding unit shown in FIG. 3;
5 is a view for explaining an operating state when the length-adjustable armrest according to the first embodiment of the present invention moves to a fully retracted position in a backward direction.
6 is a view for explaining an operating state when moving in a forward direction in a length-adjustable armrest according to a first embodiment of the present invention.
7 is a view for explaining an operating state when the length-adjustable armrest moves to a fully deployed position in a forward direction according to the first embodiment of the present invention.
8 is a cross-sectional view showing a length-adjustable armrest according to a second embodiment of the present invention.
9 is a perspective view showing a sliding unit, which is a main component in a length-adjustable armrest according to a second embodiment of the present invention, disassembled from an upper cover and a lower cover.
10 is an exploded perspective view of components of the sliding unit shown in FIG. 9;

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

-First Embodiment-

1 to 4, the length-adjustable armrest 1 according to the first embodiment of the present invention has a lower cover 2 fixed to the side of a seat, and a forward and backward direction relative to the lower cover 2 An upper cover 3 installed to be movable, and installed between the lower cover 2 and the upper cover 3 to enable forward and backward movement of the upper cover 3 relative to the lower cover 2 It is composed of a sliding unit (4).

In this case, the lower cover 2 has a seat surface portion 2a concavely formed on the upper surface for mounting the sliding unit 4 thereon. In addition, the upper cover 3 has a seat portion (not shown) concavely formed to mount the sliding unit 4 on the bottom portion.

The sliding unit 4 according to the first embodiment of the present invention is installed on the lower cover 2 and has a base 10 having ratchet-type first teeth 11 along the longitudinal direction, and the upper cover 3 A housing 20 installed in the base 10 and movably coupled along the longitudinal direction with respect to the base 10, installed in the housing 20 and tooth-coupled with the ratchet-type first tooth portion 11 of the base 10 A rotating ratchet 30 having a ratchet-type second tooth portion 31 having a ratchet-type second tooth portion 31 installed between the housing 20 and the rotating ratchet 30 and a ratchet-type first tooth portion 11 of the base 10 A spring 40 providing elastic force to the rotary ratchet 30 so that the tooth engagement between the ratchet-type second tooth portion 31 of the rotary ratchet 30 is continuously maintained, and to the housing 20 It is installed and restrains the behavior of the rotary ratchet 30 to prevent tooth engagement between the ratchet-type first tooth part 11 of the base 10 and the ratchet-type second tooth part 31 of the rotary ratchet 30. It is configured to include a fixing clip 50 forcibly switching to a release state.

In this case, the tooth engagement between the ratchet-type first tooth portion 11 of the base 10 and the ratchet-type second tooth portion 31 of the rotation ratchet 30 is the upper cover for the lower cover 2 ( 3) It is made in a one-way restraint method that restricts backward movement while allowing forward movement.

In the sliding unit 4 according to the first embodiment of the present invention, the rotation ratchet 30 and the fixing clip 50 are connected to the ratchet-type first tooth portion 11 of the base 10 and the rotation ratchet It is configured to further include a restraining part for converting the tooth engagement between the ratchet-type second tooth parts 31 of (30) into a released state, wherein the restraining part includes a protrusion 52 formed on the fixing clip 50, and It consists of an accommodation groove 32 formed at a position where the rotation ratchet 30 can engage with the protrusion 52.

That is, when the restraining part engages between the protruding part 52 of the fixing clip 50 and the receiving groove 32 of the rotating ratchet 30, the ratchet-type first tooth part 11 of the base 10 and the It serves to forcibly switch the tooth engagement between the ratchet-type second teeth 31 of the rotary ratchet 30 from the engaged state to the released state.

To this end, the fixing clip 50 has a pair of leg parts 51 whose upper end is fixed to the lower surface of the housing 20 and whose lower end protrudes toward the base 10, and the protrusion 52 ) is configured to be formed at a position facing each other in a pair of leg portions 51.

In addition, the rotation ratchet 30 is configured to have receiving grooves 32 for coupling with the protrusions 52 of the fixing clip 50 on both sides of the ratchet-type second tooth portion 31 .

And the rotary ratchet 30 is installed to be hinged to the housing 20 via the shaft 33. For this purpose, the rotary ratchet 30 has a through hole for hinge coupling using the shaft 33 (34) is provided.

In addition, the rotating ratchet 30 is configured to have a seating protrusion 35 protruding upward for engagement with the lower end of the spring 40 .

On the other hand, the housing 20 has a guide protrusion 21 protruding downward along the longitudinal direction of the member for movable coupling with the base 10, and the base 10 is a guide of the housing 20. A guide groove 12 formed concavely along the longitudinal direction of the member is provided for engagement with the protrusion 21 . Accordingly, the coupling between the base 10 and the housing 20 can suppress relative separation in the vertical direction through coupling of the guide protrusion 21 to the guide groove 12 .

The sliding unit 4 according to the first embodiment of the present invention is engaged with the rotational ratchet 30 in an engaged state at the fully deployed position of the housing 20 in the forward direction with respect to the base 10. A front stopper 60 that switches to a release state, and

It is configured to further include a rear stopper 70 for switching the behavioral posture with respect to the rotary ratchet 30 from a disengagement state to an engagement state in the fully retracted position of the housing 20 relative to the base 10. .

That is, in the sliding unit 4, the front stopper 60 is the ratchet-shaped first tooth portion of the base 10 at the fully deployed position of the housing 20 in the forward direction with respect to the base 10 ( 11) serves to switch the behavioral posture of the ratchet-type second tooth portion 31 of the rotary ratchet 30 from an engagement state to a disengagement state, and the rear stopper 70 is the base 10 Behavior posture of the ratchet-type second teeth 31 of the rotation ratchet 30 relative to the ratchet-type first teeth 11 of the base 10 in the complete storage position of the housing 20 in the backward direction with respect to It plays a role in converting from a disengaged state to an occluded state.

To this end, the front stopper 60 raises the ratchet-type second tooth portion 31 of the rotation ratchet 30 upward to engage the ratchet-type first tooth portion 11 of the base 10. It has an upwardly inclined surface 61 in the forward direction for switching from an engagement state to a disengagement state.

In addition, the rear stopper 70 lowers the ratchet-type second tooth portion 31 of the rotation ratchet 30 downward to engage the ratchet-type first tooth portion 11 of the base 10. It has an upwardly inclined surface 71 in the backward direction for switching from a release state to an engagement state.

In addition, the base 10 is provided with grooves 13 for installing the front stopper 60 and the rear stopper 70 at the front and rear of the ratchet-type first tooth portion 11, respectively. It consists of

Therefore, the length-adjustable armrest 1 according to the first embodiment of the present invention configured as described above is a complete storage position of the upper cover 3 relative to the lower cover 2 in the backward direction, movement in the forward direction, and forward movement. In the direction fully deployed position, each operates as follows.

First, referring to FIG. 5, when the upper cover 3 of the armrest 1 is moved to the fully stored position in the backward direction with respect to the lower cover 2, the rear portion of the rotating ratchet 30 moves to the rear Since the stopper 70 rides the upward inclined surface 71 in the backward direction and goes upward, the front portion of the rotating ratchet 30 rotates downward with respect to the hinge point, so the ratchet-shaped first tooth portion of the base 10 (11) and the ratchet-type second tooth portion 31 of the rotary ratchet 30 can be switched from a disengaged state to an engaged state.

Subsequently, when the upper cover 3 is pushed forward from the fully retracted position in the backward direction, as shown in FIG. As it sequentially rides over the ratchet-shaped first tooth portion 11 of the ), the forward movement of the upper cover 3 relative to the lower cover 2 becomes possible.

Subsequently, when the top cover 3 reaches the fully deployed position in the forward direction, as shown in FIG. 7, the front portion of the rotating ratchet 30 is the upward inclined surface 61 of the front stopper 60 in the forward direction. ), so that the front part of the rotating ratchet 30 rotates upward relative to the hinge point, the ratchet-type first tooth portion 11 of the base 10 and the ratchet of the rotating ratchet 30 The gap between the second tooth portions 31 can be switched from an engaged state to a disengaged state.

In this process, when the ratchet-type second tooth portion 31 of the rotation ratchet 30 is lifted upward, the protrusion 52 of the fixing clip 50 and the receiving groove of the rotation ratchet 30 ( 32) is formed. Accordingly, since the disengaged state between the ratchet-type first tooth portion 11 of the base 10 and the ratchet-type second tooth portion 31 of the rotation ratchet 30 can continue, the lower cover 2 In contrast, the upper cover 3 can move freely from the fully deployed position in the forward direction to the fully retracted position in the backward direction.

In addition, the disengaged state between the ratchet-type first tooth portion 11 of the base 10 and the ratchet-type second tooth portion 31 of the rotation ratchet 30 is the upper cover ( When 3) is moved to the fully retracted position in the backward direction and the situation shown in FIG. 5 is reached, it is naturally switched to the meshing state, so it is possible to prepare for the next forward movement.

-Second Embodiment-

8 to 10, the sliding unit 4 according to the second embodiment of the present invention is installed on the lower cover 2 and has a lower slide having an embossed insertion groove 111 along the longitudinal direction ( 110), an upper slide 120 installed on the upper cover 3 and coupled movably along the longitudinal direction with respect to the lower slide 110, installed on the upper slide 120 and the lower slide 110 The emboss spring 130 having an elastic protrusion 131 that can be inserted into the embossed insertion groove 111, and the stroke in the forward and backward directions of the upper slide 120 relative to the lower slide 110 It is configured to include a stopper 140 to limit.

That is, in the sliding unit 4 according to the second embodiment of the present invention, the elastic protrusion 131 of the embossed spring 130 is elastically inserted into the embossed insertion groove 111 of the lower slide 110. Accordingly, by restricting the forward and backward movement of the upper slide 120 with respect to the lower slide 110, the positional movement may not be made at a specific position.

In addition, the elastic protrusion 131 is separated from the embossed insertion groove 111 by an external force applied to the upper slide 120 in the front and rear direction, so that the elastic protrusion 131 breaks the embossed insertion groove 111. The forward and backward movement of the upper slide 120 relative to the lower slide 110 can be implemented while passing sequentially, which is accompanied only when an external force equal to or greater than the elastic force of the emboss spring 130 is applied.

That is, the coupling between the embossed insertion groove 111 of the lower slide 110 and the elastic protrusion 131 of the embossed spring 130 can continuously maintain the coupled state by an external force below an appropriate level On the other hand, when an external force of an appropriate level or more is applied, the coupling between the embossed insertion groove 111 and the elastic protrusion 131 is released, so that the entire length of the armrest can be freely adjusted. will be implemented

In addition, the upper slide 120 is provided with a guide protrusion 121 protruding downward along the longitudinal direction of the member for movable coupling with the lower slide 110, the lower slide 110 is the upper slide ( 120) is provided with a guide groove 112 concavely formed along the longitudinal direction of the member for coupling with the guide protrusion 121. Accordingly, the coupling between the lower slide 110 and the upper slide 120 can suppress relative separation in the vertical direction through the coupling of the guide protrusion 121 to the guide groove 112. .

In addition, in the sliding unit 4 according to the second embodiment of the present invention, the lower slide 110 has an opening 113 for mounting the stopper 140.

In addition, in the sliding unit 4 according to the second embodiment of the present invention, the upper slide 120 has a first slot portion 122 for installing the emboss spring 130, and the stopper 140 It has a second slot portion 123 for limiting strokes in the forward and backward directions.

Therefore, the length-adjustable armrest 1 according to the second embodiment of the present invention configured as described above controls the forward and backward movement of the upper cover 3 relative to the lower cover 2 by applying an external force above an appropriate level. It can be implemented freely by applying, and through this, the total length of the armrest 1 can be freely adjusted as much as the user wants.

The above description is merely an example of the technical idea of the present invention, and various modifications and variations can be made to those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments. Therefore, the protection scope of the present invention should be construed according to the following claims, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

1-armrest 2-lower cover
3-top cover 4-sliding unit
10-base 11-first tooth
12-guide groove 13-groove
20-housing 21-guide protrusion
30-rotation ratchet 31-second tooth portion
32-accommodating groove 33-shaft
34-through hole 35-seating protrusion
40-spring 50-fixing clip
51-leg part 52-protrusion part
60-front stopper 70-rear stopper
110-lower slide 111-embo type insertion groove
112-guide groove 113-opening
120-upper slide 121-guide protrusion
122-first slot unit 123-second slot unit
130-embossed spring 131-elastic projection
140-stopper

Claims (14)

A lower cover fixed to the side of the seat, and
And an upper cover installed to be movable in the forward and backward directions with respect to the lower cover via a sliding unit,
The sliding unit
A base installed on the lower cover and having a ratchet-type first tooth portion along the longitudinal direction;
A housing installed on the upper cover and coupled movably along the longitudinal direction with respect to the base;
A rotating ratchet hinged to the housing and having a ratchet-type second tooth portion capable of tooth engagement with the ratchet-type first tooth portion of the base;
A spring installed between the housing and the rotary ratchet and maintaining a tooth engagement between the ratchet-type first tooth part of the base and the ratchet-type second tooth part of the rotary ratchet, and
A fixing clip installed in the housing and constraining the behavior of the rotary ratchet to switch the tooth engagement between the ratchet-type first tooth part of the base and the ratchet-type second tooth part of the rotary ratchet to a release state. length-adjustable armrest. The method of claim 1,
The rotation ratchet and the fixing clip include a restraining unit for converting a tooth engagement between a ratchet-type first tooth portion of the base and a ratchet-type second tooth portion of the rotation ratchet into a release state, and the restraining portion is attached to the fixing clip. A length-adjustable armrest characterized in that it consists of a protrusion formed, and an accommodation groove formed at a position engageable with the protrusion in the rotating ratchet. The method of claim 2,
The fixing clip has a pair of legs with an upper end fixed to the bottom of the housing and a lower end protruding toward the base, and the protrusion is formed at a position facing each other in the pair of legs. Characterized in that Length-adjustable armrest. The method of claim 2,
The rotating ratchet has a through hole for hinge coupling to the housing via a shaft, and receiving grooves for coupling with the protrusions of the fixing clip are provided on both sides of the ratchet-type second tooth portion. Characterized in that length-adjustable armrest. The method of claim 2,
The rotating ratchet is a length-adjustable armrest, characterized in that it has a seating protrusion protruding upward for coupling with the lower end of the spring. The method of claim 1,
The housing includes a guide protrusion protruding downward along the longitudinal direction of the member for movable coupling with the base, and the base has a guide concavely formed along the longitudinal direction of the member for coupling with the guide protrusion of the housing. Length-adjustable armrest characterized in that it has a groove. The method according to any one of claims 1 to 6,
The sliding unit is a front stopper that converts the behavior of the ratchet-type second tooth of the rotating ratchet with respect to the ratchet-type first tooth of the base to a disengagement state at the fully deployed position of the housing in the forward direction with respect to the base; and a rear stopper for converting the behavioral posture of the ratchet-type second teeth of the rotary ratchet with respect to the ratchet-type first teeth of the base to a meshed state in the complete storage position of the housing relative to the base in the backward direction. Features a length-adjustable armrest. The method of claim 7,
The front stopper has a length-adjustable armrest characterized in that it has an upwardly inclined surface in the forward direction for releasing the tooth engagement with the ratchet-type first tooth portion of the base by lifting the ratchet-type second tooth portion of the rotary ratchet upward. . The method of claim 7,
The rear stopper has a length-adjustable armrest characterized in that it has an upwardly inclined surface in the backward direction for lowering the ratchet-type second tooth portion of the rotary ratchet downward and inducing tooth engagement with the ratchet-type first tooth portion of the base. . A lower cover fixed to the side of the seat, and
And an upper cover installed to be movable in the forward and backward directions with respect to the lower cover via a sliding unit,
The sliding unit
a lower slide installed on the lower cover and having an embossed insertion groove along the longitudinal direction;
an upper slide installed on the upper cover and movably coupled to the lower slide along the longitudinal direction;
An embossed spring installed on the upper slide and having an elastic protrusion capable of being inserted into the embossed insertion groove of the lower slide; and
A stopper for limiting strokes in the forward and backward directions of the upper slide relative to the lower slide,
The upper slide has a guide protrusion protruding downward along the longitudinal direction of the member for movable engagement with the lower slide, and the lower slide is concave along the longitudinal direction of the member for engagement with the guide protrusion of the upper slide. It has a guide groove formed to
The lower slide is a length-adjustable armrest, characterized in that it has an opening for mounting the stopper. delete delete delete The method of claim 10,
The upper slide is a length-adjustable armrest, characterized in that it has a first slot portion for installing the emboss spring, and a second slot portion for limiting the stroke in the forward and backward directions with respect to the stopper.

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