KR20230108032A - Damper for Glove Box in Vehicle and Glove box using thereof - Google Patents

Abstract

The present invention relates to a damper for a glove box and a glove box using the same. According to the present invention, the damper for a glove box installed in a vehicle includes: a cylinder forming an inner space which is long in one direction and including a main body and a cylinder cap blocking the space by being installed at one end of the main body, wherein one end of a longitudinal direction in the main body is closed, and the other end of the main body is opened; a partition separating the cylinder into two spaces by being installed on the opposite side of the cylinder cap in the cylinder and including a protrusion unit protruding to one end of the cylinder and an air flow path formed in the protrusion unit; a through hole installed between the other end of the cylinder and the partition and becoming a flow path of the air; a bracket installed between the partition and the other end of the cylinder and capable of moving in the longitudinal direction of the cylinder, wherein the bracket includes a cover enclosing the protrusion unit; a piston moving in the longitudinal direction of the cylinder, a part of the piston is arranged in the cylinder, and the rest part is installed by penetrating the cylinder cap to be arranged on the outside of the cylinder; an airtight unit installed between the bracket and the cylinder so that the piston moves when the air flow between the piston cap and the cylinder is blocked except for an orifice; and an elastic pressurizing unit elastically pressurizing the bracket in the direction of becoming far away from the partition. The bracket includes a hook inserted into the through hole, and the hook is installed in the damper for a glove box. The damper for a glove box enables the cover to move at a constant speed regardless of the load applied to the cover of the glove box.

Description

Damper for glove box and glove box using the same {Damper for Glove Box in Vehicle and Glove box using its}

The present invention relates to a damper for a glove box and a glove box using the same.

The glove box is installed on the dashboard on the passenger side of the vehicle and serves as a storage space. Since the glove box includes a cover, the inner space is opened or closed by the cover. A damper is installed on the cover to prevent the movement of the cover to open the inner space from being too fast. An air damper is mainly installed.

The air damper consists of a cylinder and a piston, and if necessary, a valve is additionally installed in the cylinder to control the speed of the piston.

However, the conventional damper has a problem in that the movement of the cover is too fast when the load acting on the cover becomes heavy due to the weight of the cover or objects accommodated in the inner space of the glove box, and in the opposite case, the movement of the cover is too slow.

If the glove box moves too fast, the glove box user may be surprised by the speed, and if the glove box moves too slowly, the glove box user may feel stuffy.

On the other hand, the self-weight of the glove box cover is determined by how the cover is designed. Since the cover's self-weight is a variable that determines the movement speed of the cover, there is a problem in that the design of the cover cannot help but be constrained in order to maintain an appropriate cover speed. .

The present invention has been made to solve the above-described problems of the background art, and the problem to be solved by the present invention is a glove box damper capable of moving the cover at a constant speed regardless of the load acting on the glove box cover, and a damper for the glove box. It is to provide a used glove box.

The problem to be solved by the present invention is not limited to the above-mentioned problems, and other problems not mentioned herein will be clearly understood by those skilled in the art from the following description.

As a means of solving the above problems, the present invention is a glove box damper installed in a vehicle, which forms a long inner space in one direction, but one end in the longitudinal direction is closed and the other end is open, and one end of the main body A cylinder including a cylinder cap provided on and blocking the space; a partition wall provided inside the cylinder opposite to the cylinder cap to separate the cylinder into two spaces and including a protrusion protruding toward one end of the cylinder and an air passage formed in the protrusion; a through hole provided between the other end of the cylinder and the bulkhead to serve as a flow path for air; a bracket provided between the bulkhead and the other end of the cylinder, movable in the longitudinal direction of the cylinder, and including a cover surrounding the protruding part; a piston installed through the cylinder cap so that a part is disposed inside the cylinder and the other part is disposed outside the cylinder and moves along the longitudinal direction of the cylinder; an airtight means installed between the bracket and the cylinder so that the piston can move while the air flow between the piston cap and the cylinder is blocked except for the orifice; and an elastic pressing means for elastically pressing the bracket in a direction away from the bulkhead, wherein the bracket is provided with a hook inserted into the through hole to provide a damper for a glove box in which the hook is installed.

The plurality of through-holes are provided, and it is preferable that an end of the through-hole on the side of the partition wall and the partition wall are formed differently from each other, and the hook is selectively inserted into the through-hole.

The airtight means may be an elastically deformable O-ring.

It is preferable that the cylinder forms a tapered space having a smaller cross-section toward the other end.

Preferably, the elastic pressing means is an elastically deformable rod having one end coupled to the bracket and the other end in contact with the barrier rib.

More preferably, the rod is integral with the bracket.

The present invention also provides a glove box using the above-described damper for a glove box as a second aspect.

According to the present invention, a damper for a glove box capable of moving a cover at a constant speed regardless of a load acting on the cover of the glove box and a glove box using the same can be provided.

Various but beneficial advantages and effects of the embodiment are not limited to the above-described content, and may be more easily understood in the process of describing specific embodiments of the embodiment.

1 is a view for schematically explaining a glove box;
2 is a cross-sectional perspective view of a damper for a glove box according to one embodiment of the present invention.
3 is a view for explaining through-holes of the damper for a glove box shown in FIG. 2;
4 and 5 are views for explaining the operation of the damper for the glove box shown in FIG. 2;
6 and 7 are views for explaining the glove box in which the damper for the glove box shown in FIG. 2 is installed.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments taken in conjunction with the accompanying drawings. And the terms or words used in this specification and claims should not be construed as being limited to ordinary or dictionary meanings, and the inventor appropriately defines the concept of terms in order to explain his/her invention in the best way. Based on the principle that it can be done, it should be interpreted as meaning and concept consistent with the technical spirit of the present invention. And, in describing the present invention, detailed descriptions of related known technologies that may unnecessarily obscure the subject matter of the present invention will be omitted.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used.

These terms are only used to distinguish the component from other components, and the term is not limited to the nature, order, or order of the corresponding component.

The first form of the present invention is a damper for a glove box, and the second form is a glove box. The glove box of the second form is characterized by adopting the damper for a glove box according to the first form, so for a glove box of the first form The damper will be mainly explained, and the second type, the glove box, will be briefly explained.

First, one embodiment of a damper for a glove box will be described with reference to the drawings.

1 is a view for schematically explaining a glove box, FIG. 2 is a cross-sectional perspective view of a damper for a glove box according to one embodiment of the present invention, and FIG. 3 illustrates a through hole of the damper for a glove box shown in FIG. 2 4 and 5 are views for explaining the operation of the damper for a glove box shown in FIG. 2 .

A damper for a glove box according to this embodiment is composed of a cylinder 10, a piston 20, a bulkhead 30, a through hole 40, a bracket 50, an airtight means 60, and an elastic pressing means.

As shown in FIG. 1 according to the present embodiment, the damper for a glove box is for controlling the opening speed of a cover of a glove box installed in a vehicle. The glove box is installed on the dashboard of a passenger seat of a vehicle and is installed to provide a storage space to a vehicle user.

A damper for a glove box according to this embodiment includes a cylinder 10, a piston 20, a piston cap 21, a valve 30, an airtight means 60, and an elastic pressing means 50.

As shown in FIG. 2, the cylinder 10 includes a body 11 and a cylinder cap 12, and a long inner space is formed in one direction by the body 11 and the cylinder cap 12.

The main body 11 is configured to form a long space in one direction, and both ends are open, and the cylinder cap 12 is coupled to one end of the main body 11 to block the internal space of the main body 11. is a composition In this embodiment, the other end of the main body 11 is open, but may be configured to be closed.

The main body 11 is long in one direction and forms a tapered space having a smaller cross section from one end to the other end.

Since the main body 11 only needs to form a tapered inner space, the outer shape of the main body 11 does not necessarily have to be a tapered shape. Only the inner space needs to be a tapered space, and the outer diameter can be manufactured in a certain shape. The degree to which the inner space of the main body 11 is tapered is minute. This is because the movement of the piston 20 can be restricted when the difference between the upper and lower inner diameters in the drawing is large. The tapered shape of the inside of the main body 11 can be confirmed by the deformation of the airtight means 60 in FIGS. 5 and 6 .

The piston 20 is configured to move along the longitudinal direction of the cylinder 10, and a part is disposed inside the cylinder 10 and the other part penetrates the cylinder cap 12 and is disposed outside the cylinder 10. do.

The cylinder cap 21 has a plate-like configuration and is coupled to an end portion of the cylinder side of the piston 20 .

The cylinder 10 and the piston 20 are coupled between the vehicle body and the cover of the glove box. One end of the cylinder 10 is coupled to the dashboard and the exposed end of the piston 20 is coupled to the cover of the glove box. Alternatively, the exposed end of the piston 20 may be coupled to the dashboard and one end of the cylinder 10 may be coupled to the glove box cover. One end of the cylinder 10 and the exposed end of the piston 20 are hinged to the cover of the dashboard or glove box, respectively. In this embodiment, as shown in FIG. 6, the cylinder 10 is coupled to the vehicle body and the piston 20 is coupled to the glove box. On the outside of the body 11, a ring 19 for hinge coupling with the vehicle body Is formed, and a ring 29 for hinge coupling with the glove box is formed at the end exposed to the outside of the piston 20.

The bulkhead 30 is provided on the opposite side of the cylinder cap 12 in the inside of the cylinder 10 to separate the cylinder into two spaces, and the recess 32 recessed on the opposite side of the bracket 50 and the recess A through hole formed in the portion 32 includes an air flow path 31 serving as a passage through which air can flow. An inclined surface 35 as shown is formed on an inner portion of the recessed portion 32 so that the inner cross-sectional area of the recessed portion 32 becomes smaller toward the opposite side of the bracket 50.

As shown in FIG. 3 , the through hole 40 is a hole formed between the other end of the cylinder 10 and the partition wall 30 in the main body 11 of the cylinder 10 and is a passage through which air can flow. And several (three in this embodiment; 40a, 40b, 40c) are installed, each through hole has a different installation position, the distance between the end of the through hole 40 and the partition wall is set differently there is.

The bracket 50 is provided between the partition wall 30 and the other end of the cylinder 10 and is movable in the longitudinal direction of the cylinder 10 and moves in the direction of the partition wall 30 so as to be inserted into the air passage 31. It includes a protruding protrusion 51 and a hook 53 inserted into the through hole 40 . The hook 53 is selectively inserted into any one of the three through holes 40a, 40b, and 40c.

The airtight means 60 is provided between the piston cap 21 and the inner surface of the cylinder 10 so that the piston 20 can move in a state in which air flow between the piston cap 21 and the cylinder 10 is blocked. As a configuration installed in, an elastically deformable O-ring may be used, and in this embodiment, an O-ring having a circular cross section is used as shown.

As described above, the inner space of the main body 11 has a tapered shape in which the cross-sectional area decreases toward the bottom of the drawing, and accordingly, as the cylinder 10 moves toward the bottom of the drawing, the airtight means 60 is elastically deformed and close to an ellipse. become a shape

On the other hand, if necessary, a lubricant such as grease is applied to the inner surface of the cylinder 10 to reduce friction between the airtight means 60 and the inner wall of the cylinder 10, thereby facilitating the movement of the piston 20. desirable.

The elastic pressing means is configured to elastically press the bracket 50 in a direction away from the partition wall, and in this embodiment, it is integrally formed with the bracket 50 and comes into contact with the partition wall 30 at a certain angle and is elastically deformable rod ( 70). As such, by using the rod 70 integrally formed with the bracket 50 as an elastic pressing member, a cost reduction effect can be expected compared to the case of using a separate configuration such as a spring.

Hereinafter, a mechanism for adjusting the opening speed of the glove box cover by the above configuration will be described.

First, adjustment of the opening speed of the glove box cover by the bracket 50 and the through hole 40 will be described.

When the glove box is opened, when a strong force is applied to the glove box cover (C) by an object accommodated in the glove box, a strong force is also applied to the piston 20 to move at a high speed. When the piston 20 moves rapidly, the atmospheric pressure inside the cylinder 10 is momentarily lowered, and a lot of air is introduced into the inner space of the cylinder 10 through the air passage 31 . By this force, as shown in FIG. 4, the bracket 50 elastically deforms the rod 70, which is an elastic pressing means, and moves in the direction of the partition wall 30, and the projection 51 is depressed by the movement of the partition wall 30. As the amount of air that can flow into the air passage 31 is reduced while being inserted into the part 32, the air flow slows down, and if sufficient air is not introduced into the cylinder 10, the movement of the piston 20 may be affected. resistance arises.

Next, adjustment of the opening speed of the glove box cover by the shape of the tapered main body 10 will be described. 4 and 5 are simplified representations of the configuration of the drawing in FIG. 2 for convenience of illustration.

When the inner shape of the body 11 forms a tapered space, the piston 20 moves away from the closed end of the cylinder 10, that is, the piston 20 moves away from the cylinder 10 As the frictional force between the inner wall of the cylinder 10 and the piston 20 increases, the effect of reducing the moving speed of the piston 20 can be expected.

As can be seen in FIGS. 4 and 5, when the piston 20 moves in a direction (downward direction in the drawing) away from the cylinder 10, the O-ring, which is the airtight means 60, is elastically deformed. The degree of elastic deformation of the O-ring The greater is the greater the elastic restoring force. The frictional force can be obtained as the product of the normal force and the friction coefficient. Since the elastic restoring force of the O-ring acts as a normal force between the O-ring and the inner wall of the cylinder 10, the increase in the elastic restoring force of the O-ring means that a large normal force acts Therefore, even if the coefficient of friction is kept constant, the frictional force increases.

Frictional force is a force that resists relative movement between two objects on which frictional force acts, and acts in the opposite direction to the direction of movement. Since the piston 20 moves in the direction of pulling out of the cylinder 10 (downward direction in the drawing), the frictional force acts upward in the drawing, and accordingly, the force acting on the piston 20 is reduced and the acceleration is also reduced, so the piston 20 ) from moving faster than the user expects.

Accordingly, when the cover is opened, the cover opening speed after a certain period of time is slower than the initial opening speed of the cover.

When the force transmitted to the piston 20 by the glove box cover C and the resistance force acting on the piston 20 are the same by these two mechanisms described above, the piston 20 moves at a constant speed.

5 shows a state in which most of the piston 20 protrudes from the cylinder 10 when the glove box is opened, and the airtight means 60 is elastically deformed, but the bracket 50 is prevented by the elastic restoring force of the rod 70. ) is shown spaced apart from the partition wall 30.

On the other hand, which through hole the hook 53 of the bracket 50 is accommodated becomes a variable that determines the resistance force acting on the piston 20 . As the through-hole located closer to the partition wall 30 (40c in this embodiment), the protrusion 51 is deeply inserted into the air flow path 31, and thus the degree of blocking the air flow increases. resistance will increase. In consideration of these characteristics and the weight of the cover according to the design of the dashboard, the through-hole to be fastened with the hook is determined.

Hereinafter, a glove box, which is the second form of the present invention, will be described.

6 and 7 are views for explaining the opening and closing of the glove box in which the damper for the glove box is installed.

As shown in FIG. 1 , the glove box G serves to provide a storage space for a vehicle user and is generally installed on a passenger seat dashboard D of a vehicle.

The glove box (G) includes a space formed on the dashboard (D), a cover (C) rotatably coupled to the dashboard to open or close the space, and a damper for controlling the moving speed of the cover It is composed of.

The main feature of the glove box according to the present invention is the damper, and since the damper has already been described, the description of the damper will be omitted.

The above description is merely an example of the technical idea of the present invention, and those skilled in the art can make various modifications, changes, and substitutions without departing from the essential characteristics of the present invention. will be. Therefore, the embodiments disclosed in the present invention and the accompanying drawings are not intended to limit the technical idea of the present invention, but to explain, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings. . 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.

10: cylinder 20: piston
30: bulkhead 40: through hole
50: Bracket 60: Confidential means

Claims (20)

A damper for a glove box installed in a vehicle,
A cylinder including a main body forming a long inner space in one direction and a cylinder cap provided at one end of the main body to block the space;
A piston including a plate-shaped piston cap and a rod coupled to the piston cap while moving along the longitudinal direction of the cylinder and installed through the cylinder cap so that a part is disposed inside the cylinder and the other part is disposed outside the cylinder. ;
a partition wall provided on the opposite side of the cylinder cap inside the cylinder to separate the cylinder into two spaces and including an air passage;
a through hole provided between the other end of the cylinder and the bulkhead of the cylinder body to serve as an air flow path;
a bracket provided between the partition wall and the other end of the cylinder, movable in the longitudinal direction of the cylinder, and including a projection protruding in the direction of the partition wall so as to be inserted into the air passage;
an airtight means installed between the bracket and the cylinder so that the piston can move in a state in which air flow between the piston cap and the cylinder is blocked; and,
an elastic pressing means for elastically pressing the bracket in a direction away from the bulkhead; Including,
A damper for a glove box, wherein the bracket is provided with a hook inserted into the through hole.
According to claim 1,
The through hole is provided in plurality,
A damper for a glove box in which a distance between an end of a through hole and a partition wall is formed to be different from each other, and wherein the hook is selectively inserted into the through hole.
According to claim 1 or 2,
The airtight means is an elastically deformable O-ring damper for a glove box.
According to claim 1 or 2,
The cylinder is a damper for a glove box that forms a tapered space in which the cross section becomes smaller toward the other end.
According to claim 3,
The cylinder is a damper for a glove box that forms a tapered space in which the cross section becomes smaller toward the other end.
According to claim 1 or 2,
The elastic pressing means is a damper for an elastically deformable sealed glove box, one end of which is coupled to the bracket and the other end is disposed to be in contact with the partition wall.
According to claim 3,
The elastic pressing means is a damper for an elastically deformable sealed glove box, one end of which is coupled to the bracket and the other end is disposed to be in contact with the partition wall.
According to claim 4,
The elastic pressing means is a damper for an elastically deformable sealed glove box, one end of which is coupled to the bracket and the other end is disposed to be in contact with the partition wall.
According to claim 5,
The elastic pressing means is a damper for an elastically deformable sealed glove box, one end of which is coupled to the bracket and the other end is disposed to be in contact with the partition wall.
According to claim 6,
The rod is a damper for a glove box integral with the bracket.
In the glove box installed on the dashboard of a vehicle,
The damper for the glove box according to claim 1;
a cover rotatably coupled to the dashboard;
and wherein the opening speed of the cover is controlled by the damper.
According to claim 11,
The through hole is provided in plurality,
The end of the through hole and the partition wall are formed differently from each other,
The glove box of claim 1, wherein the hook is selectively inserted into the through hole.
According to claim 11 or 12,
The airtight means is an elastically deformable O-ring glove box.
According to claim 11 or 12,
The glove box of claim 1 , wherein the cylinder forms a space having a tapered shape in which a cross section becomes smaller toward the other end.
According to claim 13,
The glove box of claim 1 , wherein the cylinder forms a space having a tapered shape in which a cross section becomes smaller toward the other end.
According to claim 11 or 12,
The elastic pressing means is a damper for an elastically deformable sealed glove box, one end of which is coupled to the bracket and the other end is disposed to be in contact with the partition wall.
According to claim 13,
The elastic pressing means is a damper for an elastically deformable sealed glove box, one end of which is coupled to the bracket and the other end is disposed to be in contact with the partition wall.
According to claim 14,
The elastic pressing means is a damper for an elastically deformable sealed glove box, one end of which is coupled to the bracket and the other end is disposed to be in contact with the partition wall.
According to claim 15,
The elastic pressing means is a damper for an elastically deformable sealed glove box, one end of which is coupled to the bracket and the other end is disposed to be in contact with the partition wall.
According to claim 16,
The elastic rod is a damper for a glove box integral with the bracket.

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