KR20110126063A - Fixing device for door - Google Patents

Abstract

PURPOSE: A fixing device of a door is provided to stably fix and release a door by preventing the fusion due to the high heat even if the fire occurs. CONSTITUTION: A fixing device of a door comprises a base plate(20), a guide block(30), an actuating member(40), a lever(44) and a panel spring(46). The guide block adheres closely to the edge plate of the cutting hole of the base plate behind. The actuating member is inserted in the rear side inner side of the guide block and is transferred in a straight line according to the applying of the external force. The lever is inserted from the rear side of the cutting hole(18) of the base plate towards the front side.

Description

Door Fixing Device {FIXING DEVICE FOR DOOR}

The present invention relates to a device for fixing a door, and more particularly, the upper end portion of the inner end of one door in a sliding door (door), which is applied to the entrance door, fire door or cabinet of the building, etc. It is installed at the lower part so that the latch can be inserted into the fixing hole provided on the door frame and the bottom according to the operation of flipping the lever upward or downward, so that the door in the closed state can be firmly fixed, and the door is fixed It is possible to smoothly open the door even in the event of a fire by not melting it by high heat even in the event of a fire. will be.

In general, when a door or a door (or ceiling) is installed in a house or building, the door or door (or ceiling) is closed in a state where one door is closed to lock the door, which is installed in the entrance door, fire door, cabinet, and the like. It is common to lock the other door to a fixed one door after it is fixed to the door.

Thus, in order to fix one door which comprises both doors to a door frame or the bottom surface, the fixing device is installed in the upper and lower parts of the inner end of one door, and the door frame which the latch which comprises a fixing device corresponds to the installation position of a fixing device is provided. Various types of door fixing devices for fixing doors in such a manner as to be fitted into and fastened to fixing holes formed on the bottom surface have been proposed.

As an example of such a door fixing device, Korean Utility Model Registration No. 20-0446948 (name: door fixing device) has been proposed.

The prior art of the Utility Model Registration No. 20-0446948 is formed so that one end can be lifted by a finger, the other end is formed with a rotating shaft, the lever between the two ends are formed in the center axis close to the rotating shaft; A central axis of the lever is coupled to the center thereof, and a first recessed groove is formed at an upper portion and a lower portion thereof, and a second recessed groove is formed at an intermediate point of the first recessed groove, and the first recessed groove is formed. A fixing member formed through a vertical inclined surface connecting the second recessed groove to the lifting hole; An elevating member which is formed to elevate in a state of being fitted into the elevating hole of the fixing member, and a lower portion of which the clasp is coupled; And one end is fixed on the elevating member moving in the second yaw groove, the other end is composed of a leaf spring coupled to the pivot shaft of the lever.

However, in the prior art of the Utility Model No. 20-0446948, the lifting of the elevating member according to the rotation of the lever is made by the leaf spring, so that the plate spring is cut by the fatigue load due to the frequent operation. And the release operation is not only disabled, there is a serious problem that the entire fixing device must be replaced.

In addition to the prior art of the Utility Model Registration No. 20-0446948, various types of door fixing devices manufactured by casting method using zinc (Zn), which is a non-ferrous metal, have been proposed as prior arts. Since it is melted and pressed by high heat during occurrence, there is a problem that the risk of human accident is very high as it is impossible to release in a fixed state.

In addition, there is a problem in that it is weak to impact force and is easily broken because it is not formed integrally, but a part that is engaged with the latch on the elevating member is manufactured by attaching it separately.裝) In addition to the inflow of foreign matter during the operation of the movement of the lever and the linear movement of the elevating member can not be made smoothly, there is a problem that the crack is generated or broken when a little excessive force is applied to smooth the operation.

The present invention is to solve such a conventional problem, the object is the inner end of one door in the swing-type doors that are applied to the entrance door, fire door or cabinet door of the building, etc. A new door lock that is installed on the upper and lower parts so that the latch can be fitted to the fixing holes provided on the door frame and the bottom according to the action of flipping the lever upward or downward. To provide.

Another object of the present invention is to provide a new door fixing device that can be opened smoothly even in the case of fire by preventing the molten by high heat even if a fire occurs in the fixed state of the door.

Still another object of the present invention is to provide a fixing device for a new door, which allows the base plate to be replaced, thereby expanding the application range.

It is another object of the present invention to provide a new door fixing device that can increase the strength of the lever to improve the durability against fatigue loads due to repeated use and not to be easily damaged by external impact. It is.

In order to achieve the above object, the fixing device of the door according to the present invention is formed in the upper and lower fastening hole for fixing to the inner end of the door, the upper and lower fastening along the center line on the surface corresponding to the lower and lower fastening hole A base plate having an incision hole provided with a finger insertion groove; It is installed to protrude to the rear side while maintaining the same interval as the width of the incision hole by a plurality of gap retaining pins riveted to the top and bottom in a state in close contact with the incision hole edge surface of the base plate back surface, both sides A stopper is integrally formed at the top and bottom of the guide block, and a semicircular guide hole is formed at the centers of both sides, and a guide block having a hinge hole formed at a position of the center point of the circle formed by the guide hole. and; It is coupled to move linearly up and down in accordance with the application of external force in the state inserted into the back surface of the guide block, the left and right side ends positioned between the upper and lower stoppers on the guide block is always overlapped with the guide hole on the guide block along the center line in the front and rear direction An actuating member having an actuating hole formed therein, the actuating member integrally formed with a catch engaging portion for allowing a separate catch to be fitted in a screwing manner at an upper end of the stopper; The pin is coupled to the hinge holes formed on both side surfaces of the guide block in the state inserted from the back side of the cutting hole of the base plate to be rotated in the vertical direction, and the guide piece on the guide block on the left and right sides of the inner end and the operating piece on the operating member A lever formed to protrude through a guide pin inserted through an operation hole formed in the lever; One end is fixed to the lower inner surface of the operating member, the other end is characterized in that it comprises a panel spring to enable the up and down rotational operation of the lever in a state fixed to the inner end of the lever.

In the present invention, the base plate, the guide block, the operation member and the lever has a feature made of a steel material having a relatively high melting point.

In the present invention, the guide block is configured to be fixed to the rear edge surface of the incision hole formed in the base plate with a screw to replace the base plate as needed; The outer peripheral surface of the guide block is configured to be covered with a separate cover to prevent foreign matter from entering; A flow preventing piece having a flow preventing hole for preventing a flow of vertically moving the latch on the surface from the upper end of the base plate to the inside is bent.

In the present invention, a lever fitting groove having a predetermined width is formed on the surface extending from the rear ends of both side surfaces of the guide block to the semicircular guide hole so that the lever can be easily inserted from the rear side toward the incision hole on the base plate.

In the present invention, the lever has a feature consisting of a riveting structure in a state in which a plurality of lever pieces having the same shape and size overlap each other (heavy).

According to the present invention, the guide pin is pushed in the operating piece in accordance with the turning motion of the lever in the state that the guide pin formed on the head of the lever is fitted in the operating hole formed on the operating piece on the operation member through the semicircular guide hole on the guide block or Fixing and releasing state of the latch by the pulled action, so that one door is fixed and released from the swing-type door that is applied to the entrance door, fire door or cabinet of the building It has the effect of being robust and stable.

Further, in the present invention, since the base plate, the guide block, the operation member, and the lever constituting the fixing device of the door are made of steel having a relatively high melting point, even when a fire occurs in the fixed state of the door, the sheet is easily melted by high heat. Because it does not stick, the door can be opened smoothly in case of fire, thereby preventing the damage of life.

In addition, in the present invention, since the coupling of the guide block to the base plate can be made detachable by a screw, the base plate can be replaced as necessary, thereby increasing the scope of application thereof.

In addition, in the present invention, when the lever of the riveting structure is applied in a state in which a plurality of lever pieces are overlapped with each other, fatigue due to repeated use as the strength is further increased as compared to the lever applied to the conventional door fixing device. Not only does the durability of the load improve, but also it is not easily damaged by external impact, thus improving the reliability of the product.

1 is an exploded perspective view showing a fixing device of a door according to the present invention.
Figure 2 is an exploded perspective view showing a state in which the guide block and the lever of another example is applied in the fixing device of the door according to the present invention.
Figure 3 is a side view of the coupling state showing the fixing device of the door according to the present invention.
Figure 4 is a side view showing the initial operation state of the fixing device of the door according to the present invention.
Figure 5 is a side view showing the intermediate operation state of the fixing device of the door according to the present invention.
6 is a side view showing a state where the latch is caught in the fixing hole in the fixing device of the door according to the present invention.

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

1 to 6, in the fixing device 10 of the door according to the present invention, a fastening hole 14 for fixing to an inner end of the door 12 is formed at an upper side and a lower side, and an upper and lower fastening hole 14. Base plate 20 is provided with a cutting hole 18 is provided with a finger fitting groove 16 at the top and bottom along the center line on the plane corresponding to.

In the present invention is configured to be fixed in a state in which a separate guide block 30 is in close contact with the edge surface of the cutting hole 18 in the rear of the base plate 20.

The guide block 30 is installed to protrude to the rear while maintaining the same interval as the width of the cutting hole 18 by a plurality of gap retaining pins 22 riveted to the top and bottom, and the top and bottom of both sides The stopper 24 is formed at the lower end to be integrally formed.

In addition, a semicircular guide hole 26 is formed at the center of both side surfaces of the guide block 30, and the hinge hole 28 is formed at a position that is a center point of the circle formed by the guide hole 26. do.

In the present invention, the inside of the rear surface of the guide block 30 is configured to be inserted into a separate operating member 40 to be linearly moved up and down in accordance with the application of an external force.

The operating member 40 is formed in a narrow plate shape having a size that can be fitted between the guide block 30, the left and right of the operating member 40 positioned between the upper and lower stoppers 24 on the guide block 30. The side end is configured to bend the operating piece 34 formed with the operating hole 32 is always maintained in the overlapping state with the guide hole 26 on the guide block 30 along the front and rear direction center line.

In addition, the upper or lower end of the operation member 40 which is located outside the stopper 24 is configured to be integrally formed with the latch engaging portion 38 to be fitted to the separate clamp 36 in a threaded manner.

Meanwhile, in the present invention, a separate lever 44 is fitted into the front surface from the rear surface of the cutting hole 18 of the base plate 20, and the lever 44 is hinged holes formed on both side surfaces on the guide block 30. It is configured to be coupled to the 28 by the hinge pin (44a) to rotate in the vertical direction, the guide hole 26 on the guide block 30 and the operating member 40 on both left and right centers of the head portion of the lever 44 Guide pins 42 fitted through the operating hole 32 formed in the operating piece 34 is formed to protrude.

In order to allow the up and down rotational operation of the lever 44 to be elastic in the present invention, a separate panel spring 46 is fixed to the lower inner surface of the operating member 40 and the inner end of the lever 44. It is composed.

In the present invention made as described above, the base plate 20, the guide block 30, the operation member 40 and the lever 44 is preferably made of a steel (Steel) material having a relatively high melting point compared to the non-ferrous metal.

In addition, the guide block 30 is configured to fix the base plate 20 as necessary by fixing a plurality of screws to the edge surface of the back or front of the cutting hole 18 formed in the base plate 20. It may be, on the guide block 30 may be configured to cover the separate cover 52 so that foreign matter such as dust does not flow.

In addition, the inner side from the upper end of the base plate 20 may be configured such that the flow preventing piece 56 formed with a flow preventing hole 54 for preventing the flow of the upper and lower linear movement of the latch 36 on the surface. .

The guide block 30 and the lever 44 applied to the present invention may have a modified structure as shown in FIG. 2 in order to improve assembly convenience or strength.

For example, the semicircular guide holes 26 from the rear ends of both side surfaces of the guide block 30 are provided so that the lever 44 can be easily inserted from the rear side toward the cutting hole 18 on the base plate 20 without interference. It may be configured to form a lever fitting groove (30a) of a predetermined width on the surface leading to the).

Moreover, the lever 44 of the said other example can be comprised so that a riveting coupling may be carried out in the state which arrange | positioned the several lever piece 44b which has the same shape and size so that they may overlap each other, in order to improve intensity | strength. .

The operation of the present invention made as described above is as follows.

1 to 6, the lever 44 through the gap or the lever fitting groove (30a) of the middle portion of the guide block 30, which is maintained at a predetermined interval by the front gap retaining piece 22 first After inserting the guide pin 42 formed in the head portion of the lever 44 is inserted into the semicircular guide hole 26 formed on the side of the guide block 30, the hinge pin 44a is guide block ( 30) to fit into the hinge hole (28).

In this state, the operating member 40 seated separately at the rear of the guide block 30 is seated, but the operating piece 34 bent forward from the middle portions of both sides of the operating member 40 between the upper and lower stoppers 24. Covering a part of the side surface of the corresponding guide block 30 so that the operating hole 32 formed on the operating piece 34 overlaps a part of the guide hole 26 formed on the side surface on the guide block 30, and At the same time, the guide pins 42 inserted through the semi-circular guide holes 26 are fitted to the operating holes 32 on the operating piece 34 to be engaged.

At this time, a separate panel spring 46 is installed between the head of the lever 44 fitted to the guide block 30 and the inner surface of the lower end of the operation member 40 to rotate the lever 44 in the vertical direction. Allow the operation to be flexible.

In this state, by riveting the gap retaining piece 22 on the surface of the upper and lower stoppers 24 formed in the guide block 30, the operating member 40 coupled to the guide block 30 does not fall out, and the operating member The lower portion of the clasp 36, which is provided separately, is coupled to the clasp coupling portion 38 formed at the upper or lower portion of the 40 by screwing.

In this state, a rear cover of the guide block 30 may be combined with a separate cover 52 to prevent foreign substances such as dust from entering.

As described above, the guide block 30 in a state in which the operating member 40 and the lever 44 are coupled to each other may be fixed to the rear side of the base plate 20. To this end, the guide block 30 is formed along the longitudinal center line of the base plate 20. The base plate 20 and the guide block 30 are fixed to each other by welding or fastening a plurality of screws while the base portion of the guide block 30 is in close contact with the rear edge of the cutout 18. When the lever 44 coupled to the guide block 30 protrudes to the outside of the front surface of the base plate 20 through the cutout 18 on the base plate 20, the fixing device of the door according to the present invention ( 10) assembly is completed.

The fixing device 10 of the assembled door is fixed by fastening the fixing screw to the fastening hole 14 formed in the upper and lower portions of the base plate 20 in a state in which the fixing device 10 of the door 12 is in close contact with the predetermined position of the upper and lower sides of the door 12. 3 and 4, the installation work is completed.

In this state, the clamp 36 screwed to the latch engaging portion 38 on the actuating member 40 is inserted into the flow preventing hole 54 on the flow preventing piece 56 bent inward from the upper end of the base plate 20. While being fitted, it is positioned on the same center line as the fixing hole 50 formed in the door frame 48.

On the other hand, as shown in Figure 4, when the door 12 is to be fixed to the door frame 48 in the operation initial state in which the fixing of the door 12 is released, the cutting hole 18 of the base plate 20 Hold the lever 44 lying on the upper side by inserting a finger into the finger fitting groove 16 formed at the upper side and flipping it downward, and the head of the lever 44 gradually becomes clockwise around the hinge pin 44a by its operating force. Direction is rotated in the direction and at the same time the guide pin 42 is inserted into the semi-circular guide hole 26 on the guide block 30 is gradually rotated in the clockwise direction along the guide hole 26, the working piece hanging through the operating hole 32 34 is pushed upwards, and as a result, the entire operation member 40 is linearly moved upward as shown in FIG. 5.

In this state, when the lever 44 is fully flipped downward, the guide pin 42 is rotated to the upper limit of the guide hole 26 while pushing the operating piece 34 so that the operating member 40 is linearly moved to the upper end point. As illustrated in FIG. 6, the latch 36 coupled to the latch engaging portion 38 on the operating member 40 is fitted into the fixing hole 50 formed in the door frame 48, and the door 12 is firmly fixed. will be.

On the other hand, when the door 12 is to be released from the fixed state, when the lever 44 is pulled upward, the operating member 40 is linearly moved in the opposite direction while being caught in the fixing hole 50 on the door frame 48 ( 36 is removed and the fixed state of the door 12 is released.

In this process, the vertical lifting operation of the latch 36 is stably performed without flowing by the guide action of the flow preventing hole 54 on the flow preventing piece 56.

When the linear movement of the operation member 40 according to the flipping operation of the lever 44 as described above, the panel spring 46 interposed between the lower bottom portion of the operation member 40 and the head of the lever 44 is compressed and extended. While the vertical movement of the lever 44 in the vertical direction is made elastic, the linear movement of the vertical direction of the operating member 34 is limited by the stopper 24 on the guide block (30).

Since the panel spring 46 applied to the present invention functions to give only the elastic force to the folding motion of the lever 44, even if the panel spring 46 is damaged, the guide pins 42 fitted to the lever 44 are semicircular. There is no problem in locking or releasing the door 12 by pushing or pulling the operation piece 34 overlapped with the guide hole 26 to raise and lower the entire operation member 40.

On the other hand, when the lever 44 has a structure in which a plurality of lever pieces 44b are riveted in a state in which they are arranged overlapping, as shown in FIG. Since it increases the durability against fatigue loads due to repeated use, as well as when the external impact force is applied is not easily broken can improve the reliability of the product.

12 door 14 fastener
18: incision 20: base plate
22: interval maintenance 24: stopper
26: guide ball 28: hinge ball
30: guide block 32: operator
34: operation piece 36: latch
38: latch engaging portion 40: operating member
42: guide pin 44: lever
44a: Hinge pin 44b: Lever piece
46: panel spring 48: door frame
50: fixing hole 52: cover
54: flow prevention hole 56: flow prevention piece.

Claims (5)

Fastening holes 14 are formed at upper and lower ends to fix the inner ends of the doors 12, and finger-fitting grooves 16 are formed at upper and lower ends of the upper and lower fastening holes 14 along a center line on a surface corresponding to the upper and lower fastening holes 14. A base plate 20 having a cut hole 18 provided therein;
The width of the cutting hole 18 is equal to the width of the cutting hole 18 by a plurality of gap retaining pins 22 riveted to the top and the bottom of the base plate 20 in close contact with the edge of the cutting hole 18 on the rear surface of the base plate 20. It is installed to protrude to the rear while maintaining the spacing, the stopper (24) is formed integrally at the top and bottom of both sides, and the semicircular guide hole 26 is formed at the center of both sides, the guide hole 26 A guide block (Guide block 30) having a hinge hole 28 formed at a position to be a center point of the circle formed by the line;
In the state fitted into the rear surface of the guide block 30 is coupled to move linearly up and down in accordance with the application of an external force, the left and right side ends positioned between the upper and lower stoppers 24 on the guide block 30 along the front and rear center line An operating piece 34 having an operating hole 32 which is always kept overlapping with the guide hole 26 on the block 30 is bent, and a separate top or bottom is positioned at an outer side of the stopper 24. An actuating member 40 integrally formed with a clasp engaging portion 38 for allowing the clasp 36 to be screwed together;
It is coupled to the hinge hole (28a) formed on both sides on the guide block 30 in the state inserted from the rear surface of the cutting hole 18 of the base plate 20 by the hinge pin (44a) is rotated in the vertical direction At both left and right centers of the inner end, guide pins 42 fitted through guide holes 26 on the guide block 30 and operating holes 32 formed on the operating piece 34 on the operating member 40 protrude. A lever 44 formed;
One end is fixed to the lower inner surface of the operating member 40, the other end is fixed to the inner end of the lever 44 in the state that the up and down rotation of the lever 44 to the panel spring to be made elastically ( 46) The door fixing device, characterized in that configured to include. The method of claim 1,
The base plate 20, the guide block 30, the operation member 40 and the lever 44 is fixed to the door, characterized in that made of a steel material with a relatively high melting point compared to non-ferrous metal. The method of claim 1,
The guide block 30 is configured to be fixed to the rear edge surface of the incision hole 18 formed in the base plate 20 so as to replace the base plate 20 as necessary;
The outer circumferential surface of the guide block 30 is configured to be covered with a separate cover 52 to prevent foreign matter from entering;
From the top of the base plate 20 to the inner side of the door characterized in that the flow preventing piece 56 is formed with a flow preventing hole 54 for preventing the flow of vertically moving the latch 36 on the surface Fixture. The method of claim 1,
On the surface extending from the rear ends of both side surfaces of the guide block 30 to the semi-circular guide hole 26 to allow the lever 44 to be easily inserted into the cutting hole 18 on the base plate 20 from the rear without interference. The door lock device, characterized in that the lever fitting groove (30a) of a predetermined width is formed. The method of claim 1,
The lever 44 is a locking device of the door, characterized in that consisting of a riveting (Riveting) structure in a state in which a plurality of lever pieces (44b) having the same shape and size overlap each other.

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