KR20110121180A - Door stopper integrated door closer - Google Patents

Abstract

PURPOSE: A door stopper integrated with a door closure is provided to enhance workability, reduce a time and labors and enable easy use since even if a separate door stopper is not installed, the open state of a door is easily maintained by a mechanical structure. CONSTITUTION: A door stopper integrated with a door closure comprises a housing(300), a rotating cam, a moving cam, a handle(330), a fastener, an upper link fastener(350), and a lower link fastener(360). The housing is formed as a cylinder with an open top. The rotating and moving cams are assembled in the housing. The handle is assembled to the bottom of the housing and rotates the rotating cam. The fastener connects the rotating cam to the handle to be integrally operated. The upper link fastener is fastened to one end of the upper link(210) of a door closure(200) to be operated integrally with the upper link.

Description

Door stopper integrated door closer

The present invention relates to a door closer integrated door stopper, and more particularly, is integrally provided in the door closer to automatically close the open door, and the installation operation is quick and simple, and more convenient to maintain the open (open) state when necessary. It is possible, and the operation when closing the door in the open state relates to a door closer integral door stopper easier to operate.

In general, doors installed to rotate from one hinge axis, such as fire doors, are used to prevent the accident from happening, such as causing the door to close automatically and slowly, or inadvertently causing the injured to get injured. For this purpose, a door closer (also called a door check) is installed at the top of the door.

By the way, the door closer only has a function of automatically closing the open door, and only the means for adjusting the closing speed or the closing pressure of the open door is provided, thereby maintaining the open state of the door as needed. Means for making it are not provided.

Accordingly, in order to maintain an open state, the door in which the door closer is installed is provided with a separate door stopper, which is mostly made apart from the door closer.

That is, Figure 1 is a perspective view showing a state in which the conventional door closer and the door stopper are separately installed on the top and bottom of the door, respectively.

As shown in the related art, the door closer 20 having the upper link 21 and the lower link 22 is installed in the upper part of the door 10, and the door stopper 30 is installed in the lower part of the door 10. .

Conventional door stopper 30, the hinge portion 31 is attached to the lower end of the door 10; A lever 32 installed on the hinge portion 31 so as to be rotatable vertically with a pin shaft; A rubber braking part 33 attached to a lower end of the lever 32 to prevent sliding of the door 10 by a frictional force with the bottom surface to maintain the open state of the door 10; The main product is composed of.

However, the conventional door stopper 30 has various problems as follows when installed and used.

First: Since the door closer 20 and the door stopper 30 are separately made and installed, the door closer 20 is installed at the top of the door 10, and the door stopper 30 is installed at the bottom of the door 10, respectively. There is a problem in that a lot of time and manpower consumption to follow.

Second: in order to operate the lever 32 of the door stopper 30 installed at the bottom of the door 10 by hand so that the rubber braking part 33, which is a rubber material at the bottom, comes into contact with the bottom surface, the body must be bent every time. There is a hassle and discomfort that the waist is bad or sick people have a problem that is difficult to use the door stopper (30).

Third: When the lever 32 of the door stopper 30 is operated with a foot so as not to bend the back, the operation is not easy, and the brake part 33 attached to the bottom of the lever 32 for the purpose of applying frictional force is made of rubber material. As a long time use or wear or break when there is a problem that loses its function.

Fourth: Since the conventional door stopper 30 is also affected by the material of the sag or the bottom of the door 10 can be said that its utility is very low when installed in the door, such as a fire door.

The present invention was developed to improve the conventional problems as described above, the object of the present invention is to provide a door stopper integrally provided in the door closer, simply install a separate door stopper as in the conventional door closer separately installed Even without the mechanical structure, it is possible to easily maintain the open state of the door, workability is good, less time and manpower consumption, and to provide a convenient door closer integrated door stopper.

 It is an object of the present invention to provide an additional door closer integrated door stopper that can be conveniently used without additionally bending the waist by additionally installed in the upper and lower links of the existing door closer.

Still another object of the present invention is to use the brake part 33 made of rubber material, which is worn or broken like a conventional door stopper that solely depends on the frictional force to keep the door open. It is extended, and is not affected by the material or condition of the bottom surface to provide a highly useful door closer integrated door stopper.

The present invention the door closer by integrally installing a door stopper provided with a rotary cam and a mobile cam slides up and down at the hinge portion of the upper link and the lower link of the door closer to automatically close the open door to achieve the above object By restraining the lower link of the door is characterized in that the open state is maintained.

That is, the present invention comprises a stopper housing which is formed of a cylindrical body having an upper surface opened and having a support portion protruding at a predetermined height on one side of the upper surface; A rotating cam assembled inside the stopper housing; It is assembled on the rotary cam is moved up and down in a straight line according to the rotation direction of the rotary cam, characterized in that composed of a mobile cam formed with a plurality of teeth on the inner peripheral surface of the central shaft hole.

In addition, the handle is assembled to the bottom of the bottom of the stopper housing to rotate the rotating cam; Fasteners for connecting the rotary cam and the handle is integrally operated; Characterized in that it is provided.

In addition, the hinge is coupled to the upper end of the support portion on one side of the stopper housing, the upper link fastening portion which is coupled to one end of the upper link flows to operate integrally with the upper link of the door closer; The gear is fastened to one end of the lower link so as to be integrated with the lower link of the door closer, and is geared with the teeth of the mobile cam on the outer peripheral surface of the upper end of the shaft provided at the bottom of one side to be inserted through the central shaft hole of the mobile cam and the rotary cam. It is characterized in that the lower link fastening portion is formed is formed to restrain the rotation when the moving cam is raised.

Here, the upper link and the lower link of the door closer use the same as those of the existing door closers each provided with hinge pin holes at the ends, and at one end with the shaft of the lower link connection part, a pin ball corresponding to the hinge pin ball is formed and hinged. The upper link and the lower link and the lower link is characterized in that the hinge is integrally coupled.

In the present invention, since the door stopper is integrally provided in the door closer installed at the top of the door, the installation of the door stopper is completed by simply installing the door closure, so the work according to the installation is quick and simple, and the manpower and time are considerably reduced. There is.

In addition, when operating the door stopper, simply turn the handle located at the top of the door to one side as it is, without bending the waist every time, and keep the door open stably if necessary. If you turn the opposite direction, the door stopper function is released immediately and the door is automatically closed, which is very convenient for use.

In addition, the present invention maintains the open state of the door by the mechanical structure using the cam, there is no fear of functional loss because there is no fear of wear or damage like a conventional door stopper, and there is an effect of extending the life, the floor material or state Since it is not affected at all, it has the effect of improving the reliability of the product quality.

1 is a perspective view showing a state in which the conventional door closer and the door stopper are separately installed at the top and bottom of the door, respectively
Figure 2 is a perspective view showing a state in which the door closer according to the present invention is installed
Figure 3 is an enlarged perspective view of the door closer in which the present invention is implemented
Figure 4 is an exploded perspective view for showing the part structure of the door stopper of the present invention
Figure 5a is a cross-sectional view showing a state in which the door stopper of the present invention is released
Figure 5b is a cross-sectional view showing a state in which the door stopper of the present invention is operated to maintain the open state of the door
6 is a perspective view showing a stopper housing bottom structure of the present invention;

Hereinafter, the configuration and operation for achieving the object of the present invention will be described by the accompanying drawings as preferred embodiments.

Figure 2 is a perspective view showing a state in which the door closer according to the present invention is installed in the door, Figure 3 is a perspective view showing an enlarged door closer according to the present invention, Figure 4 shows the part structure of the door stopper of the present invention Is an exploded perspective view.

According to the present invention, a door stopper for maintaining the open state of the door 100 is integrally provided in the door closer 200 to automatically open the door 100, and according to the position of the door 100 to open and close. The door stopper is operated by controlling the rotation of the upper link 210 and the lower link 220 of the door closer 200 in which the folding angle is changed.

To this end, the door stopper of the present invention, the stopper housing 300 of the cylindrical upper surface is opened; A rotary cam 310 and a mobile cam 320 assembled in the stopper housing 300; A handle 330 assembled to the bottom bottom of the stopper housing 300 to rotate the rotating cam 310; A fastener 340 connecting the rotary cam 310 and the handle 330 to be integrally operated; An upper link fastening portion 350 fastened to one end of the upper link 210 so as to be integrated with the upper link 210 of the door closer 200; A lower link fastening part 360 fastened to one end of the lower link 220 so as to be integrated with the lower link 220 of the door closer 200; It consists of.

Here, the stopper housing 300 is formed by protruding a support part 301 having a pin hole 302 on one side of the opened upper surface at a predetermined height, and a plurality of guide grooves 303 at regular intervals on the inner circumferential surface of the cylindrical body. It is formed, the arc-shaped long hole 305 around the shaft support hole 304 in the center is formed opposite to both sides.

The rotary cam 310 is rotatably placed on the inner bottom surface of the stopper housing 300, and a shaft hole 311 is formed at the center thereof, and a protruding cam portion 312 is formed at an upper edge of the shaft hole 311. And the concave cam portion 313 is formed repeatedly.

The handle 330 is rotatably assembled to the bottom surface of the stopper housing 300, the fastening hole 331 is provided at a position corresponding to a part of both long holes 305, and the rotary cam 310 is left and right. Rotate to

And the fastener 340, after passing through the long hole 305 of the stopper housing 300 through the fastening hole 331 of the handle 330 is fastened to the rotary cam 310 and the rotary cam 310 and the handle ( 330 is connected to operate integrally.

In addition, the movable cam 320 is assembled on the rotary cam 310 in the stopper housing 300 so that the protruding cam portion 322 and the concave cam portion 323 of the bottom are engaged with the rotary cam 310. The outer circumferential surface is provided with a guide protrusion 324 fitted into the guide groove 303 of the inner circumferential surface of the stopper housing 300 to be vertically raised or lowered according to the operation of the rotary cam 310, and a shaft hole having a predetermined size in the center thereof. 321 is penetrated, and a plurality of teeth 325 are formed at predetermined intervals on the inner circumferential surface of the shaft hole 321.

And, the upper link fastening portion 350 is fastened to one end of the upper link 210 of the door closer 200, the pin hole 302 coincides with the pin hole 302 provided in the support portion 301 of the stopper housing 300. It is formed on one side end is coupled to the pin 352 is flowed around the pin hole 302 in a state that is integrally bound with the stopper housing (300).

In addition, the lower link fastening portion 360 that is fastened to one end of the lower link 220 to be integrally operated with the lower link 220 of the door closer 200, the shaft of the rotary cam 310 and the mobile cam 320 A shaft 361 rotatably fitted into the balls 311 and 321 is formed at the bottom of one end. And the gear part 362 which engages with the tooth 325 is formed in the upper end of the outer peripheral surface of the shaft 361. The shaft 361 has a lower end fitted into the shaft support hole 304 to maintain a stable state of installation.

Figure 5a is a cross-sectional view showing a state that the door can be opened and closed freely because the mobile cam is lowered in the present invention, Figure 5b is the teeth of the mobile cam is raised to the teeth 325 and the gear part 362 is engaged Accordingly, it is a cross-sectional view showing a state in which the open state of the door is maintained as it is.

That is, when the protruding cam portion 322 of the mobile cam 320 is engaged with the concave cam portion 313 of the rotary cam 310 rotated by the handle 330 as shown in FIG. 5A, the position of the mobile cam 320 is low. The teeth 325 of the mobile cam 320 are out of the gear portion 362 of the lower link fastening portion 360.

In this state, since the shaft 361 of the lower link fastening part 360 is freely rotatable, the door 100 may be freely opened, and the door 100 may be opened by releasing the handle or releasing the door stopper. 200 will be automatically closed by the pressure applied to the lower link 220.

Then, the present invention is to open the door at a predetermined angle by the state of Figure 5a and then simply rotate the handle 330 assembled on the bottom surface of the stopper housing 300 in one direction as shown in Figure 5b of the protruding cam portion of the rotary cam 310 312 is in contact with the protruding cam portion 322 of the mobile cam 320 causes the mobile cam 320 to rise upward along the guide groove 303, thereby the teeth 325 of the inner peripheral surface of the shaft hole 321 ) Is engaged with the gear portion 362 of the upper end of the shaft 361.

In this state, the movable cam 320 has the teeth 325 and the shaft 361 of the inner circumferential surface of the shaft hole 321 in a state where the guide protrusion 324 of the outer circumferential surface is caught by the guide groove 303 of the inner circumferential surface of the stopper housing 300. The gear portion 362 of the engagement is to selectively limit the rotational movement of the lower link 220 integrally fastened with the lower link fastening portion 360.

Therefore, even if the force of the door closer 200 is applied to the lower link 220 by releasing the handle of the opened door 100, the lower link 220 is the teeth 325 and the lower end of the mobile cam 320 as described above. Since the gear parts 362 of the link fastening part 360 do not rotate at all because they mesh with each other, the door 100 maintains the open state.

And, if you want to re-adjust the opening angle of the door 100 to maintain the open state as described above, by rotating the handle 330 of the bottom surface of the stopper housing 300 in the opposite direction to protrude cam portion of the mobile cam 320 The 322 and the concave cam portion 323 may be engaged with the concave cam portion 313 and the protruding cam portion 312 of the rotary cam 310.

Then, as the moving cam 320 moves downward, the teeth 325 can be freely moved again out of the gear part 362 so that the opening angle of the door 100 can be adjusted, and the handle 330 again in one direction after the adjustment. As long as the moving cam 320 is raised by rotating to maintain the open state as it is.

In addition, in order to close the door 100 to maintain the open state, simply rotate the handle 330 of the bottom of the stopper housing 300 and then release the handle of the door 100 as shown in Figure 5a mobile cam ( 320 is lowered, so that the tooth 325 is out of the gear 362, the lower link 220 is rotated under the force of the door closer 200, the door 100 is automatically closed.

In addition, the upper link fastening part 350 and the lower link fastening part 360 are provided with support flanges 353 and 363 that surround front and rear sides of the upper link 210 and the lower link 220, and a support flange. (353) and 363 are provided with fastening holes 354 and 364, respectively, so that one end of the upper link 210 and the lower link 220 is integrated into the upper link fastening portion 350 and the lower link fastening portion 360. It is desirable to tighten the tightening force at the time of tightening.

The present invention mentioned above is preferably manufactured by integrally provided in the door closer 200 itself from the beginning.

The present invention may be installed in addition to the existing door closer using the upper link and the lower link of the pre-installed door closer.

That is, the hinge pin ball 365 matching the hinge pin balls 211 and 221 of the upper link 210 and the lower link 220 at one end of the shaft 361 of the lower link fastening portion 360 is provided. By forming the hinge pin 370, the upper link 210, the lower link 220 and the lower link fastening portion 360 may be integrally hinged.

In this case, the upper link 210 and the lower link 220 are to be integrally operated to the upper link fastening portion 350 and the lower link fastening portion 360 to be integrally operated, the support flange 353 mentioned above. It may be integrally fastened using the fastening holes 354 and 364 of the crest 363, or may be integrally fastened by other means.

In addition, the moving cam 320 is moved downward may be operated by its own weight, or by installing a return spring (not shown in the drawing) between the mobile cam 320 and the lower link fastening portion 360 It may be made to return downward by spring tension.

In addition, the bottom of the rotary cam 310 to the fastener 340 in a state in which the boss is provided with a screw hole protrudingly formed to increase the assemblability and to increase the fastening force to be fitted to the long hole 305 of the bottom of the stopper housing 300. It is desirable to engage the handle.

200: door closer 210: top link
220: lower link 300: stopper housing
301: support 303: guide groove
304: shaft support hole 305: long hole
310: rotating cam 311,321: shaft ball
312,322: protrusion cam portion 313,323: yaw cam portion
324: guide protrusion 325: tooth
330: handle 350: upper link connection
360: lower link connecting portion 361: shaft
362: gear unit

Claims (2)

In constructing a door stopper for maintaining the open state of the door 100,
A support part 301 having a pin hole 302 is protruded on one side of the opened upper surface, and a plurality of guide grooves 303 are formed on the inner circumferential surface of the cylindrical body at regular intervals, and a shaft support hole in the center is formed on the bottom surface thereof. A stopper housing 300 having an arc-shaped long hole 305 opposed to both sides with respect to 304;
Rotating cam 310 is rotatably placed on the bottom surface of the stopper housing 300, the protruding cam portion 312 and the concave cam portion 313 is repeatedly formed on the upper surface of the center shaft hole 311;
A handle 330 installed on the bottom surface of the stopper housing 300 in a rotatable manner and provided with fastening holes 331 corresponding to portions of both long holes 305 on both sides thereof, and rotating the rotating cam 310 left and right;
Fitted through both fastening holes 331 and the long hole 305, the fastener 340 connecting the rotary cam 310 and the handle 330 so that the rotary cam 310 and the handle 330 is integrally operated. ;
The protrusion cam 322 and the concave cam portion 323 of the bottom is assembled in the stopper housing 300 to be engaged with the rotary cam 310, the outer peripheral surface is provided with a guide projection 324 fitted into the guide groove 303 A movable cam 320 which is vertically elevated according to the rotational direction of the rotary cam 310 and has a plurality of teeth 325 formed on the inner circumferential surface of the shaft hole 321;
One end is fastened to one end of the upper link 210 to be integrally operated with the upper link 210 of the door closer 200, flows around the pin hole 302 of the support portion 301 formed in the stopper housing 300 An upper link coupling part 350 having a pin hole 351 coupled to the pin 352 in the upper part;
It is fastened to one end of the lower link 220 to be integrally operated with the lower link 220 of the door closer 200, the shaft hole 311, 321 of the rotary cam 310 and the mobile cam 320 on the bottom end of one end A lower shaft coupling portion 360 having a shaft 361 rotatably fitted to the upper side thereof, and a gear portion 362 engaged with the teeth 325 formed at the upper end of the shaft 361; Door closer integrated door stopper, characterized in that consisting of.
The method of claim 1,
The upper link 210 and the lower link 220 are provided with hinge pins 211 and 221 at the ends, respectively.
A hinge pin hole 365 is formed at one side end of the lower link coupling portion 360 in which the shaft 361 is provided to coincide with the hinge pin balls 211 and 221.
The door closer integrated door stopper, characterized in that the hinge link 370, the upper link 210, the lower link 220 and the lower link fastening portion 360 is integrally hinged.

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