KR100199816B1 - Door check installed in hinge - Google Patents

Abstract

The present invention is the front door It is applied to various doors such as fire doors, and the doors are supported by pillars or door frames. The invention relates to a door check that is installed on a hinge that allows it to be automatically closed while being attached.

The present invention is a shaft that rotates together with the hinge attached to the door to change the rotational force back and forth by the three-dimensional cam and the front and rear force is made to support the spring, the present invention is to install the door check integrally to the hinge By providing a structure that allows the door check to be installed at the same time as the installation of the hinge, it improves the work economy, not only does not need the installation volume of the door check, but also the collision of passengers or cargoes caused by the conventional protruding door check. No worry, mechanical As it is a hydraulic structure, it is effective with the invention of reliable operation and high durability.

Description

Door check installed on the hinge

1 is an overall configuration of the present invention.

2 is a cross-sectional view taken along the line A-A of FIG.

3 is an enlarged state of the excerpt B-B of FIG.

Figure 4 is an enlarged view of the excerpt of the summary of the present invention.

5 is a partial cross-sectional view of another configuration of the present invention.

6 is an application state of the conventional invention.

7 is a configuration diagram of another conventional invention.

* Explanation of symbols for main parts of the drawings

1 housing 11 cylindrical portion

12: sealing part 2: the shaft

21 side end 22 small diameter part

23: shaft stopper 24: guide pin

25: oil hole 26: oil passage

27: support stopper 28: bearing groove

29: fantasy girl part 3: three-dimensional cam

31: Pin Slit 32: Oil Pass

33: groove groove 34: adjustment O-ring

35: short diameter part 36: slit stepped groove

37: through hole 38: key groove

39: key stopper 4: spring

5: adjusting screw 51: conical part

52 body 53 spiral portion

6: guide shaft 61: side end

62: pinslit 63: shaft stopper

64: shaft recess 65: annular recess

7: cylindrical cam 71: guide pin

72: insertion protrusion 73: groove groove

74: adjustment O-ring 75: short diameter

76: inlet furnace 77: inlet furnace

78: key groove 79: key stopper

8: hinge 81: shaft hole

82: fixed hinge 83: rotating hinge

84: connecting rod 91: O-ring

92: steel balls

The present invention is the front door It is applied to various doors such as fire doors, and the doors are supported by pillars or door frames. The invention relates to a door check that is installed on a hinge that allows it to be automatically closed while being attached.

Door check is a device that is attached to various doors (hereinafter referred to as doors) to automatically close the door at a constant speed. It was developed to contribute to comfort, especially in Korea, the cold and cold weather in the cold weather or as a device for increasing the frequency of use to lock the door when going out, the conventional general door check as shown in FIG. Of the connecting rod 84 to the shaft 2 of the door check housing 1 fixed to the door and connected by a connecting rod 84 having a predetermined structure between the column and the door or the door frame (hereinafter referred to as a door frame). A structure that automatically closes the door by applying an axial rotational force in a predetermined direction has been generally used.A more advanced structure is disclosed in Korean Utility Model Publication No. 81-174 (announced February 24, 81). As shown in the figure, insert the threaded bar (2) to the upper plate of the pivoting plate 83 of the hinge (8) and fix it with a locking pin, and the elongate continuous formation on the outer peripheral wall of the doa check cylinder (1) The inner circumferential wall is inscribed with orbital demands, the inner duct's inner circumferential wall is protruded and inserted into the orbital demand. Install it, and insert the threaded rod (2) into the barrel (1), insert it while covering the spiral thread (4), and insert the upper and lower lids on the upper and lower sides of the barrel (1) to close the closed bar. A cylindrical door check in which the tank 16 is built in a conventional hinge is used as the configuration of the door check hinge, and the door is closed by the restoring force of the tank (spring).

By the way, the conventional door check (shown in FIG. 6) of the conventional invention is composed of a connecting rod 84 and the door check body (1) is a structure that protrudes on a certain portion of the door during installation, the standard also Not only was it inconvenient because it was small, but it was also uneconomical due to the increased workmanship, such as the need to attach the door again after the door was mounted on the frame using a hinge.

In addition, the practical publication 81-174 (shown in Fig. 7 (A) (B)) solves the problem in the conventional invention, but the elasticity of the spring As the structure closes the door by using the restoring force, the restoring force is different according to the opening angle of the door, which causes the speed difference of closing the door.The spring accommodated in a small volume has a limit of the elastic modulus, so for example, a heavy load such as a fire door or an iron door Hard to apply to door, spring compression It is not a resilience force due to expansion, but because the spring force uses the resilience according to the action force rotated along the circumference, the fatigue load accumulates on the spring when repeated several times, so the durability is poor.

The present invention completely solves the above problems, always closes the door at a constant speed, and can be self-adjusting according to the load of the door, and developed and completed by studying a durable hinge integrated door check, the present invention is attached to the door The shaft rotates with the hinge to change the rotational force to the front and rear force by the three-dimensional cam and the front and rear force is made to support the spring, which will be described in more detail according to the drawings as follows.

(A) and (b) of FIG. 1 is an overall configuration state of the door check installed in the hinge of the present invention and will be described below with reference to (a), but the configuration in (b) is the same, and FIG. AA line cross section figure.

The present invention, as shown in the figure, the cylindrical housing (1) is open on one side; The side end portion 21 having one end of the circumferential side surface flat, and the other end thereof as a small diameter portion 22 to be accommodated in the housing 1 by reducing the diameter, and the side end portion 21 and the small diameter portion 22 The guide pin 24 is inserted into and fixed to the annular recess 29 with the shaft stopper 23 and coincides with the inner diameter of the housing 1, and protrudes from the upper portion of the small diameter portion 22. At the bottom of the small diameter portion 22, the inlet is enlarged and the oil passage 26 which is drilled along the shaft center for a certain height, and the oil hole 25 penetrating between the periphery of the small diameter portion 22 at the tip of the oil passage 26 A cylindrical shaft (2) comprising a support stopper (27) for supporting the outer periphery of the lower diameter portion (22); Pin slits 31 which are bent diagonally or in a predetermined diameter from one end to be perforated into slits, oil paths 32 recessed in a predetermined depth and area in the inner circumferential surface, and recessed in one side along the outer circumferential surface at the lower side The adjustment o-ring 34 is inserted into the recessed groove 33 having the through hole 37 axially drilled on the lower portion thereof, and the lower portion is a short diameter portion 35 having a reduced diameter. (2) of the housing (1) in the pin slits 31 to which the guide pins (24) are inserted in the small-diameter portion (22), and the key grooves (38) which are long in the axial direction at the outer circumference thereof. A three-dimensional cam 3 supported by the key stopper 39 penetrating through the cylindrical portion 11; A spring 4 which is supported and installed between the lower end of the three-dimensional cam 3 and the support stopper 27; The tapered attachment is a conical part 51 which engages with the enlarged inlet of the oil passage 26, and the conical body 52 and the lower end are screwed into the sealing part 12 of the housing 1. 53, the cylindrical body 52 is an adjustment screw (5) which is embedded in the sealing portion 12; O-ring filling oil in the inner space and sealing between the shaft (2) and the housing (1), between the small diameter portion (22) and the three-dimensional cam (3), and between the sealing portion (12) and the adjusting screw (5). It is characterized by consisting of (91).

In the above configuration, it is preferable that the diameter of the body 52 of the adjustment screw 5 has a diameter larger than that of the spiral portion 53.

3 is a state diagram showing an extract of the B-B part of FIG. 2 which is a main part of the present invention.

In addition, in the above-described configuration, a bearing groove is formed by diagonally cutting the inner end of the support stopper 27 supporting the end of the small diameter portion 22 of the shaft 2 and extending the outer circumference of the small diameter portion 22. It is more preferable to insert a plurality of steel balls 92 into 28).

4 is an enlarged state diagram for extracting other main parts of the present invention.

In the above-described configuration, it is more preferable that the slit stepped grooves 36 coincident with the outer circumference of the guide pin 24 are formed at predetermined positions on the pin slits 31 of the three-dimensional cam 3.

FIG. 5A is a partial cross-sectional state diagram in which only the outside is cut so that the inside of the present invention can be seen.

The present invention, as shown in the figure, the cylindrical housing (1) is open on one side; One end of the circumferential side is a flat end side portion 61, and the other end coincides with the inner diameter of the housing (1) to be fixed to the annular recess portion 65 by the shaft stopper 63, and inclined toward one side from the bottom A guide shaft 6 composed of pin slits 62 to be drilled, and shaft recesses 64 circumferentially recessed along the axis at the lower end thereof; Insertion protrusions 72 inserted into the shaft recesses 64 are formed at the upper end thereof, protrude on the outer periphery thereof, and guide pins 71 inserted into the pin slits 62 and long indentations along the axis in the outer periphery. A cylindrical cam 7 formed of a key groove 78 through which the key stopper 79 penetrating the housing 1 is inserted; It is characterized in that it consists of a spring (4) which is carried and mounted between the lower end of the cylindrical cam (7) and the sealing portion 12 of the housing (1).

(B) of FIG. 5 is a partial cross-sectional state view showing a modification of still another configuration of the present invention.

In the above-described configuration, the cylindrical cam 7 has a lower diameter portion 75 having a lower diameter thereof, and a recess groove 73 recessed along an outer circumference at the end of the short diameter portion 75. The adjustment O-ring 74 is inserted into the inlet path 76 which communicates from the concave groove 73 to the space formed by the shaft recess 64 and the insertion protrusion 72, and downwards along the axis in the space. Further configured to consist of a withdrawal furnace 77 which is perforated; It is more preferable that it consists of an O-ring 91 which fills the inner space with oil and seals between the guide shaft 6 and the housing 1.

In the present invention configured as described above, the shaft hole 81 of the hinge 8 is inserted into the side end portion 21 of the shaft 2, and the fixing hinge 82 is provided on the door frame, and the rotating hinge 83 is provided on the door side. The small diameter portion 22 of the shaft 2 is inserted into the housing 1, and the shaft 2 is fixed by bolt fixing or welding, and the shaft 2 is inserted into the housing by the shaft stopper 23 held by the annular recess 29. 1) the shaft 2 is rotated in the housing 1, but the forward and backward movement is limited, and the three-dimensional cam 3 has a guide pin 24 inserted into the pin slits 31 so that the small diameter portion When the door is opened, the guide pin 24 pushes the three-dimensional cam 3 (right direction in FIG. 2) by the rotation of the shaft 2 (in the direction of the arrow in FIG. 2). The slits 31 cause the three-dimensional cam 3 to be lowered (downward in FIG. 2) (upper case in the case of the reverse configuration).

At this time, the three-dimensional cam 3, the key stopper 39 is inserted into the key groove 38 through the cylindrical portion 11 of the housing 1, the key groove 38 is a keyway (up and down in Fig. 2) Since the rotation of the three-dimensional cam 3 is limited by the key stopper 39, the three-dimensional cam 3 can slide up and down along the key way.

In addition, the lower end of the three-dimensional cam (3) is pushed down while the spring (4) is supported, the inner circumference of the housing (1) and the sealing portion 12 and the lower and small diameter portion 22 of the three-dimensional cam (3) The oil injected into the lower hermetic chamber {the enclosed space in which the spring 4 is mounted} constituted by the outer circumference thereof is reduced in the closed chamber and the short diameter portion 35 of the three-dimensional cam 3 and the cylindrical portion 11 of the housing 1. ) Is advanced along the gap formed by the inner circumference of the), and pushes the adjustment o-ring 34 inserted into the recess groove 33 formed at the end of the gap and is injected into the recess groove 33, the recess groove ( The through hole 37 is drilled in the 33 and communicates with the oil path 32 so that the gap between the outer circumference of the small upper portion 22 of the upper sealing chamber 22 and the inner circumference of the cylinder 11 and the shaft 1 and the housing 1 ) Is properly injected into the space} side formed of the upper end of the O-ring 91 and the three-dimensional cam (3). In this case, the space of the elements constituting the passage of the oil can be appropriately adjusted according to the load of the door or the specification of the door check of the present invention, and the opening speed of the door is fixed by adjusting the passage of the oil according to the use. Even if the fluid oil is not compressed, the opening speed of the door can be adjusted by the passage speed of each pressure for the minimum cross-sectional area of the oil passage.

When the external force is removed with the door open, the hardened spring 4 pushes up the three-dimensional cam 3 (upper part of FIG. 2), so that the shaft 2 rotates due to the above-described adverse action (opposite to the arrow in FIG. 2). In this case, while the upper sealing chamber is reduced, the oil in the upper sealing chamber is injected into the inlet groove 33 through the through hole 37 through the oil path 32, but is regulated by the oil pressure. ) Seals a gap formed between the inner diameter of the short diameter portion 35 and the cylindrical portion 11 of the three-dimensional cam 3, so that the above-described passage of oil is blocked, while the oil hole penetrating the small diameter portion 22 is formed. 25 is returned to the lower sealed chamber via the oil passage (26).

At this time, since the conical part 51 of the adjustment screw 5 can seal the end of the oil passage 26, the oil passes through the spiral 53 by adjusting the height of the adjustment screw 5 appropriately. By adjusting the amount, the sealing speed of the door can be arbitrarily adjusted.

In another configuration of the present invention, the adjusting screw 5 is larger than the diameter of the spiral portion 53 so that the adjusting screw 5 is screwed from the upper portion of the sealing portion 12 so that In the finished product, the adjusting screw (5) is not taken out, and even if the adjusting screw (5) is raised upward, the adjusting screw (5) is always caught in the end because it is caught on the end of the small diameter portion (22) of the shaft (2). You can go up and down.

Of course, the end of the adjustment screw (5) protruding out of the sealing portion 12,-or + to form a groove for the driver, or to form a butterfly handle or in a variety of modified forms of the adjustment screw (5) Rotation can be made easily, even if this additional configuration does not deviate from the technical spirit of the present invention.

In the basic configuration of the present invention, the support stopper 27 is inserted into the end of the small diameter portion 22 so that the rotation axis of the small diameter portion 22 is not separated from the support stopper 27 and the small diameter portion 22. Surface contact between the outer circumferential surface is so small that the surrounding oil is interposed on the contact surface, but the friction force can not be ignored at all, in another configuration of the present invention, the lower inner portion of the support stopper 27 is cut diagonally and opposed to the small diameter portion ( 22) Since a plurality of steel balls 92 are inserted into the volume formed by inserting the bearing groove 28, the bearing acts while minimizing the surface contact, thereby minimizing the friction between the surfaces.

In addition, in another configuration of the present invention, the slits stepped grooves 36 are formed on the pin slits 31 curved to a predetermined diameter, and the position of the slits stepped grooves 36 to be formed is that the door is opened. Predetermined angle (eg 90 for apartment doors) It is 180 in the door which we do Or a predetermined angle), the guide pin 24 is located in the slit step groove 36 of the pin slit 31 when the door is positioned at a predetermined set angle. Since the guide pin 24 is fixed and fixed, the door can be prevented from being closed to keep the door open at the set angle. In addition, when the door is to be closed in the open state, the guide pin 24 is separated from the slit step groove 36 and the inclined plate slits 31 are released by applying a weak force or slightly opening the door. Therefore, it closes automatically.

In another configuration of the present invention shown in FIG. 5, the guide shaft 6 is supported by the spring 4 in the housing 1, and the guide shaft 6 is opposed to the present invention shown in FIG. 6) pinslit 62 is formed, the guide pin 71 is installed in the cylindrical cam (7), so the pinslit 62 is formed upward from the bottom of the guide shaft (6) by the reverse action have. Therefore, the same action as the invention shown in FIG. 1 is performed, but since the oil is not filled, it is impossible to control the speed by adjusting the passage area of the oil.

However, in another configuration of the present invention shown in (b) of FIG. 5, since the oil is filled in the enclosed space, the operation shown in FIG. 1 and its operation are exactly the same.

In addition, Figure 1 shows the most preferred embodiment of the present invention, in (a) illustrates a structure in which the hinge protrudes from the upper and lower ends of the door up and down, but is installed in the middle of the door as in (b) Even if the hinge is slightly changed in structure, the present invention can be used as it is, and this drawing is an exemplary view of the embodiment of the present invention, unlike the drawings, it can be used in various ways as a sub-type of the present invention, for example installed in the door and door frame Inverting the constituent parts of the present invention, changing the structure of the hinges, or changing the angle or position of the pin slits of the three-dimensional cam, which do not all depart from the technical scope of the present invention.

As described above, the present invention provides a structure that allows the door check to be integrally installed on the hinge, so that the installation of the door check is performed at the same time as the installation of the hinge, thereby improving the work economy and not requiring the installation volume of the door check. There is no worry of collision of passengers or cargo by the conventional protruding door check, As it is a hydraulic structure, it is effective with the invention of reliable operation and high durability.

Claims (4)

A cylindrical housing 1 having one side open; The side end portion 21 having one end of the circumferential side surface flat, and the other end thereof as a small diameter portion 22 to be accommodated in the housing 1 by reducing the diameter, and the side end portion 21 and the small diameter portion 22 The guide pin 24 is inserted into and fixed to the annular recess portion 29 with the shaft stopper 23 and coincides with the inner diameter of the housing 1, and protrudes from the upper portion of the small diameter portion 22. An oil passage 26 extending from the lower end of the neck portion 22 and being drilled along a shaft center, and an oil hole 25 penetrating between the periphery of the small diameter portion 22 at the tip of the oil passage 26. The cylindrical shaft (2) is formed by diagonally cutting an inner end of the small diameter portion (22) and inserting a plurality of steel balls (92) by a bearing groove (28) recessed in the outer peripheral portion of the small diameter portion (22). Wow; The pin slits 31 are bent to a predetermined diameter at one end and perforated into slits, and the oil passes 32 concave to a predetermined depth and area on the inner circumferential surface and are recessed along the lower outer circumferential surface and perforated axially on one side. The adjustment o-ring 34 is inserted into the recessed groove 33 having the through hole 37, and the lower portion is a short diameter portion 35 having a reduced diameter, so that the inside of the housing 1 and the shaft 2 are small. Cylindrical portion 11 of the housing 1 in the pin slits 31, the guide pin 24 is inserted into the neck portion 22 so as to be inserted, and the key groove 38 recessed in the axial direction at its outer circumference. A three-dimensional cam 3 supported by the key stopper 39 penetrating through; A spring 4 which is supported and installed between the lower end of the three-dimensional cam 3 and the support stopper 27; The attachment is tapered to form a conical portion 51 engaged with the enlarged inlet of the oil passage 26, and the conical body 52 and the lower end are screwed into the sealing portion 12 of the housing 1 ( 53), the cylindrical body 52 is a control screw (5) to be inserted into the sealing part 12, and fill the oil into the inner space and between the shaft (2) and the housing (1) and the small Door check is installed on the hinge, characterized in that consisting of an O-ring (91) for sealing between the neck portion 22 and the three-dimensional cam (3) and between the sealing portion 12 and the adjustment screw (5). 2. The hinge assembly as claimed in claim 1, wherein a slit stepped groove (36) corresponding to the outer circumference of the guide pin (24) is formed at a predetermined position on the pin slit (31) of the three-dimensional cam (3). Door check. A cylindrical housing 1 having one side open; One end of the circumferential side is a flat end side portion 61, and the other end coincides with the inner diameter of the housing (1) to be fixed to the annular recess portion 65 by the shaft stopper 63, and inclined toward one side from the bottom A guide shaft 6 composed of pin slits 62 to be drilled and shaft recesses 64 circumferentially recessed along the axis at the lower end thereof; An insertion protrusion 72 inserted into the shaft recess 64 is formed at an upper end thereof, protrudes on the outer circumference thereof, and guide pins 71 inserted into the pin slits 62, and a long indentation along the axis on the outer circumference. And a key groove 78 through which a key stopper 79 penetrating the housing 1 is inserted, the lower end of which is shortened along the outer circumference at the end of the short diameter portion 75 and the end of the short diameter portion 75. An adjustment o-ring 74 inserted into the recessed recess 73 and an inlet passage 76 communicating with the space between the shaft recess 64 and the insertion protrusion 72 in the recess 73; Cylindrical cam (7) consisting of a withdrawal path 77 that is drilled to the lower end along the axis in the space; A spring 4 which is supported and installed between the lower end of the cylindrical cam 7 and the sealing part 12 of the housing 1; The door check is installed on the hinge, characterized in that the oil filling the inner space consisting of an O-ring (91) for sealing between the guide shaft (6) and the housing (1). The door check according to claim 1 or 3, wherein the diameter of the body (52) of the adjustment screw (5) has a diameter larger than that of the spiral portion (53).