KR20130139653A - Opening and shutting device for furniture - Google Patents

Abstract

The present invention relates to a bottom-up door opening and closing device capable of improving convenience of use and reliability of operation by designing a door lifted in the predetermined location to be stopped while simply mechanically opening and closing the door without using the existing hydraulic or pneumatic structure. The bottom-up door opening and closing device comprises a body which has a fastening part having a screw thread in the lower end thereof and a first bracket combination part formed in the upper end thereof for the bracket combination and is formed in the internal hollow shape; a shaft of which a part is inserted into the inside of the body; and a connection socket which connects the shaft to the body by fastening the upper end thereof with the body and has a receiving part in which an access hole is formed so that the shaft can penetrate and a corresponding fastening part connected to the upper end of the receiving part to be screw combined with the fastening part of the body, wherein the shaft has the external diameter which becomes more enlarged toward the upper part. The bottom-up door opening and closing device further comprises a first stopper being received in the connection socket, being formed in the cylindrical shape so that the shaft can penetrate and having a first cutting part which is cut from the lower end to the upper part and a connection part which is not cut formed along the circumference in the lower part of the cylinder to stop/fixate the movement of the connection socket moved to the upper part along the shaft at the predetermined point.

Description

[0001] OPENING AND SHUTTING DEVICE FOR FURNITURE [0002]

The present invention relates to a door opening / closing apparatus,

More specifically, it is possible to smoothly open and close the up-down door that opens and closes the door in the up and down direction, such as a sink door or a window, and in particular, simply opens and closes the door mechanically without using a conventional hydraulic or pneumatic structure. It is designed to stop the door lifted from the to reduce the chance of frequent trouble due to the hydraulic or pneumatic structure, and to simplify the structure, and ultimately relates to the upward door opening and closing device that can improve the ease of use and reliability of operation.

In recent years, the shape of a casement installed in a building is mostly formed in a vertical direction, not a lateral direction, so that a user pushes it outward or pulls the door inward to open and close a window.

For this operation, the window frame and the door of the window are provided with a device for opening and closing the door (the operation of pushing the door outwardly or pulling it inward), which is generally called a slider for door opening and closing or a stay for door opening and closing. Such a slider or stay (hereinafter, referred to as a " slider ") includes a guide rail fixed to a window frame and a door, a slide slidably inserted into the guide rail, As shown in Fig.

The above structure is not only a door of a window but also a storage space provided on a furniture, particularly a top of a sink, and can be used as a flap door opening / closing device designed to open and close a door in a vertical direction.

That is, in general, a storage furniture such as a sink has a front portion open and a space for storing contents therein, and the front portion of the furniture does not expose the contents stored therein to the outside or foreign matter such as insects or dust inside. It is equipped with a door to block the inflow,

In this way, the door can be opened and closed by a hinge or hinge member installed inside the opening, and in recent years, the furniture can be opened and closed upwards to improve the aesthetics of the furniture according to the improvement of living standards or difficult to open and close the door. The furniture is provided with a door that is installed.

The door opening / closing apparatus of the up-and-down type is generally referred to as a gas spring or a step spring in the furniture furniture field,

This includes a housing having a chamber filled with a gas (e.g., nitrogen gas) therein, and a piston rod having a piston slidable in the chamber of the housing at one end thereof. That is, when the piston rod is moved in a state in which the length of the gas spring (step spring) is expanded or contracted in the opening / closing section of the door during the opening or closing operation of the door, the piston is elastically controlled by the gas pressure inside the housing And the piston rod is operated in a state of generating a bi-directional force in one direction.

However, the present invention differs from the conventional structure of a conventional opening and closing apparatus, that is, a stay (or slider) in a window and a gas spring (or a spring) in a door of a cabinet,

And to propose a structure that can make up for the disadvantages of the existing opening and closing devices.

In other words, the conventional gas spring (or step spring) only leads to the housing and the piston rod, which gives a beautiful and beautiful interior image. However, this is because the pressure inside the housing easily changes according to the ambient temperature of the installation place, . That is, it is difficult to maintain the repulsive force of the piston rod at the room temperature at a constant temperature because the gas pressure is low when the outside temperature is low. In particular, when the pressure is significantly lowered in winter, satisfactory operation stability and operation reliability can not be expected But also has a disadvantage in that a large amount of residual gas is generated depending on the state of gas charging.

In addition, the existing stay has a disadvantage that the door is opened and closed at an opening / closing angle of about 45 degrees due to the structural limitation, and has a limitation on the rotation angle. Thus, the structure of the guide rail and the like is exposed But it is disadvantageous in terms of interior design.

Also, because of the limitation of the opening and closing angles, there is a limitation in the application area that the door can not be used for opening and closing the flap.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art,

It is an object of the present invention to provide a door opening / closing apparatus adopting a mechanical system instead of opening and closing the door by using a gas spring type externally in order to obtain a cosmetic clean image.

In particular, an object of the present invention is to provide a door opening and closing device having a structure capable of controlling the door opening and closing stably and accurately by introducing a simple mechanical method.

Bottom-up door opening and closing device of the present invention for achieving the above object,

A screw thread is formed at the lower end, a first bracket coupling part is formed at the upper end for coupling the bracket, and a hollow body body;

A shaft which is partially inserted into the body, and

The upper end is fastened to the body and connects the shaft and the body, the connection socket formed of a receiving portion formed with a hole for penetrating the shaft and a connecting portion formed at the upper end of the accommodating portion and corresponding fastening portion for screwing the body Including but not limited to,

The shaft extends the outer diameter toward the top,

The cylindrical shape accommodated in the connecting socket and the shaft penetrates, the lower portion of the cylindrical body is formed along the circumference of the cylindrical incision and the first incision cut in the upper portion from the bottom of the cylindrical body to the shaft at a specific point According to the technical feature that further comprises a first stopper for stopping and fixing the movement of the connection socket is moved upward.

In addition, the connection portion of the first stopper of the present invention is formed with an extension portion extending outwardly the inner diameter, the second incision in the vertical direction along the cylinder circumference in the shape of a cylindrical body accommodated in the expansion portion, the shaft is penetrated It is a technical feature that the formed second stopper is provided.

In particular, the extension portion of the first stopper of the present invention is characterized in that the inner diameter is extended toward the lower portion, the second stopper is extended in the outer diameter toward the lower portion.

In addition, the second cutting portion of the present invention is characterized in that the alternately formed on the upper and lower portion of the second stopper.

According to the present invention having the above-described configuration, the gas spring is first felt in appearance and operation, but the opening and closing operation is mechanically performed to compensate for the disadvantages of the existing gas spring and to take advantage of the advantages.

In addition, the tapered shaft has a first stopper structure that is formed inside the connecting socket and opens to the outside while following the tapered shaft. The simple structure allows the stability and reliability of the opening and closing operation to be expected. .

In addition, the second stopper is additionally provided, and through the unique structure of the first and second stoppers, the smooth opening and closing operation and the stop of the opening operation at a specific point can be accurately performed.

1 is a perspective view according to the present invention shows a state in which the connection socket is moved upward and downward along the shaft.
2 is an exploded perspective view and a main part enlarged view according to the present invention.
Figure 3 is a cross-sectional view according to the present invention in particular B is a cross-sectional view of applying a different embodiment.
4 is a state diagram used in the present invention.

Hereinafter, the present invention will be described more specifically with reference to the drawings.

Figure 4 is a view showing a state in which the opening and closing device of the present invention is mounted on the door used, as described above, the opening and closing device of the present invention can be applied to both the door opening and closing in the vertical direction, such as a door or window of the flap length. It is a structure.

In particular, the opening and closing apparatus of the present invention will be described below by specifying the direction in which the door D is opened upward and the direction in which the door D is closed downward, based on FIG. 4.

Door opening and closing device according to the invention,

Fastening part 12 is formed with a screw thread formed at the bottom and the body 10 of the hollow form,

A part inserted into the body and the shaft 20 is expanded or reduced in appearance depending on whether the door is opened or closed;

One end is connected to the body 10 to connect the shaft 20 and the body 10, the connection socket 30 is moved upward along the shaft during the door opening action,

And a first stopper 40 inserted into the connection socket to stop and fix the door open state at a specific point.

More specifically,

The body is a rod-shaped hollow inside, the first bracket coupling portion 11 for coupling with the bracket is formed on the top, it is mounted on one side of the door through the bracket (B).

In particular, the first bracket coupling portion 11 is preferably made of a flat plate shape so that the bracket can be easily mounted, the body 10 as a whole take a rod shape, that is, a cylindrical shape, but presses the cylinder from the top Form a flat plate and mount the bracket on it.

Mounting of the bracket to the first bracket coupling portion 11 is preferably made so that the bracket can be rotated 360 degrees, the necessary configuration is to adopt the conventional conventional configuration as shown in the figure.

Next, the shaft 20 also has a long rod shape, a part of which is inserted into the body and visually lengthens or becomes shorter as the body 10 moves up and down.

That is, when the door is lifted, the body 10 is moved upward (pulled), so that the shaft 20 inserted in the body is exposed (i.e. the shaft appears to be long), and the body is closed when the door is closed. It is moved downward so that a portion of the shaft 20 is inserted back into the body 10 (ie, the shaft length appears to be shortened) (see FIG. 4).

A second bracket coupling portion 21 is also formed at the bottom of the shaft 20 for coupling with the bracket B. The second bracket coupling portion 21 also has a flat plate shape for easy coupling with the bracket. It is preferable to, and to press the thin rod-shaped shaft lower end to form a second bracket coupling portion.

Of course, the second bracket coupling portion 21 is also coupled to the bracket 360 degrees rotatable, which is through the bracket on the furniture body (if the invention is applied to the cabinet) or the window frame (if the invention is applied to the window) Is mounted.

And connecting the body and the shaft is a connection socket 30,

The connecting socket 30 has a receiving portion 31 formed with an access hole 31 a for penetrating a shaft, and is formed to be connected to the upper end of the receiving portion so that the corresponding fastening portion 32 for screwing with the fastening portion 12 of the body is formed. )

In addition, the accommodating part 31 illustrated in the drawing has a dome shape protruding downwardly, but is not limited to the dome shape, but the stopper operation and the tightening operation of the first stopper in which the dome shape is subsequently accommodated in the accommodating part is smoothly performed. It is preferable that the structure can be made.

Thus, after the connection socket 30 is fitted to the shaft 20, the coupling portion 12 of the body is screwed to the corresponding coupling portion 32 of the connection socket, and eventually the shaft and the body are connected.

When the body 10 moves due to the door opening and closing, the connection socket 30 is moved up and down along the shaft 20 fitted through the access hole, thereby opening and closing the door according to the present invention.

With the above configuration alone, the door can be opened and closed in the up and down direction, but the open state cannot be stopped at a specific point after the door is opened.

In the present invention, the first stopper 40 is introduced to stop and fix the movement of the connecting socket 30 moved upward along the shaft 20 and to maintain the open state of the door at a specific point.

That is, the first stopper 40 of the present invention has a cylindrical shape through which the shaft penetrates, and the lower portion of the cylindrical body has a cylindrical first cutout portion 41 cut in the upper direction from the lower end of the cylindrical body and a connection portion 42 not cut. It is a structure formed along the circumference of the sieve.

In addition, the rod-shaped shaft for the operation of the first stopper is preferably a form in which the outer diameter is extended toward the top (d1 <d2).

Thus, when the door is lifted open, the body 10 is pulled upward and the connecting socket 30 is moved upward along the shaft 20,

Since the outer diameter of the shaft is gradually increased, the first cutout portion 41 of the first stopper 40 accommodated in the accommodating portion 31 of the connecting socket is pushed out by the enlarged outer diameter of the shaft at a predetermined time, and gradually the shaft is opened. As you ride up the shaft 20 is pinched on the inner circumferential surface of the first stopper 40 at a specific point, the additional connection socket movement is stopped and maintained.

Accordingly, one side of the inner circumferential surface of the first stopper 40 is further provided with a clamping portion 43 protruding therein to firmly tighten the outer circumferential surface of the shaft to be penetrated, thereby stably maintaining a stop state at a specific point.

Next, as shown in the drawing, the connection portion 42 of the first stopper is formed with an expansion portion 42a, the inner diameter of which extends outward,

By having a second stopper 50 accommodated in the expansion portion in the shape of a cylindrical body to keep the stop state more stably at a certain position where the door is lifted,

Allow the connection socket to move smoothly along the shaft.

In particular, the first stopper 40 is formed by an extension, and the extension portion 42a is applied to the lower end of the body 10 in a state in which the connection socket 30 and the body 10 are fastened. Does not fall into the body 10.

The first stopper 40 can be inserted into the connection socket 30 during assembly of the present invention by forming the cutout portion 41 of the first stopper.

In addition, the second stopper having a cylindrical shape is also formed with a second cutout 51 in the vertical direction along the circumference of the cylindrical body.

The second cutout 51 may be formed in the lower direction from the top to the lower direction like the first cutout formed in the first stopper, or may be formed in the upper direction to the lower direction, as shown in the drawing. It may be formed alternately on the top and bottom of the.

The second stopper 50 serves to fix the open door at a specific position, but also to allow the connecting socket to be moved smoothly along the shaft, so that the second cutout 51 alternates between the upper and lower portions. It is preferable to form.

In addition, as shown in FIG. 3A, in order to smoothly operate the first stopper and the second stopper in the connection socket, the extension portion 42a of the first stopper 40 increases in diameter toward the bottom thereof, and the second stopper ( 50) It is also preferable that the outer diameter becomes larger toward the bottom (d1 &lt; d2).

In addition, the first stopper 40 is movable in the space formed up to the end of the receiving portion 31 and the body 10 of the connecting socket 30,

The inner diameter of the expansion part 42a is changed according to the state of movement inside the accommodating part 31, and the changing of the inner diameter of the expansion part 42a eventually controls the depth at which the second stopper 50 enters the expansion part 42a. As it is, the shaft 20 serves to reduce or increase the resistance (friction).

In other words, when the door is lifted, the second stopper comes out of the extension part 42a of the first stopper to reduce the resistance of the first stopper 40 to the shaft 20 and to lift it smoothly. In (usually the user is forced) the second stopper 50 is inserted into the extension 42a of the first stopper 40, increasing the resistance to the shaft 20 to prevent the door from closing and opening The state remains stable.

Of course, the movement of the second stopper with respect to the first spotter is made more efficient by increasing the inner diameter of the expansion portion 42a toward the bottom and the outer diameter of the second stopper also toward the bottom.

In addition, as shown in the drawing, in the case of the second stopper, the outer diameter becomes larger toward the lower side, but the inner diameter does not change, and thus, the thickness of the second stopper becomes thicker toward the inner side.

3B is a modification of the first and second stoppers of the present invention. The lower end of the second stopper 50 has a rear portion 52 having a thicker thickness than other portions so that the shaft penetrates smoothly. While providing a path, it is possible at certain points that the tightening function of the second stopper on the shaft can be reliably achieved.

Of course, when the rear part 52 is formed in the second stopper, the second extension part 42b extended outwards is formed at the end of the extension part 42a of the first stopper once more. The rear part 52 of the 2nd stopper hangs on 42b.

Of course, as shown in FIG. 3A, the inner diameter of the connecting portion 42 of the first stopper is increased toward the lower portion while the second extension portion is provided, and the second stopper 50 also has the rear portion 52 and the lower portion thereof. Of course it can be implemented in the form of the outer diameter becomes larger.

For reference, the accompanying drawings of the present invention show a structure in which the second stopper is mounted, and the opening and closing of the door and the open state at a specific point are possible without the second stopper alone. However, in this case, unlike the first stopper shape shown in the drawing, it is preferable that the connection part of the first stopper does not have an extension portion and the inner circumferential surface of the connection part directly contacts the shaft.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, Should be interpreted as being included in.

Description of the Related Art [0002]
10: body 11: first bracket coupling portion 12: fastening portion
20: shaft 21: second bracket coupling portion
30: connecting socket 31: accommodating part 32: corresponding fastening part
40: first stopper 41: first cutout 42: connection part
42a: extension part 42b: second extension part 43: clamping part
50: second stopper 51: second incision 52: rear

Claims (4)

A fastening part having a thread formed at a lower end thereof, a first bracket coupling part formed at an upper end thereof, and a body having a hollow shape;
A shaft which is partially inserted into the body; And
The upper end is fastened to the body and connects the shaft and the body, the connection socket formed of a receiving portion formed with a hole for penetrating the shaft and a connecting portion formed at the upper end of the accommodating portion and corresponding fastening portion for screwing the body Including;
The shaft extends the outer diameter toward the top,
The cylindrical shape accommodated in the connecting socket and the shaft penetrates, the lower portion of the cylindrical body is formed along the circumference of the cylindrical incision and the first incision cut in the upper portion from the bottom of the cylindrical body to the shaft at a specific point And a first stopper for stopping and fixing the movement of the connection socket moved upward. The method of claim 1,
The connection part of the first stopper is formed with an extension portion whose inner diameter extends to the outside,
And a second stopper which is accommodated in the expansion part and has a cylindrical shape in which the shaft penetrates, the second stopper having a second cutout in the vertical direction along the circumference of the cylinder. 3. The method of claim 2,
The inner diameter of the first stopper is extended toward the lower portion,
The second stopper upwardly opening and closing device, characterized in that the outer diameter is extended toward the lower portion. The method according to claim 2 or 3,
The second cutout is a bottom-up door opening and closing device, characterized in that formed alternately in the upper and lower portion of the second stopper.

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