KR900002461B1 - Energency exit lock device - Google Patents

Abstract

A latching device for outwardly opening doors comprises a rigid plate (31) having a latch-bolt assembly (30) anchored to a door and a strike assembly (50) mounted on a door frame in operative association with the latch-bolt (40). The plate includes projections positioned to be on each side of the latch-bolt of the latch-bolt assembly. The strike assembly includes recesses (54,56) for receiving such projections (34,36). The recesses in the strike assembly are configured in relation to the projections to allow limited vertical movement of te projections within the recesses.

Description

Locking mechanism and outlet assembly

1 is a front view illustrating the closure and the wall member using the outlet device of the present invention.

2 is an enlarged view of a portion of the assembly shown in FIG.

3 is a cross-sectional view taken along line 3-3 of FIG.

4 is a perspective view of a component arrangement showing a latch bolt assembly and a strike assembly of the outlet device of the present invention.

FIG. 5 is a cross section taken along the 3rd tile and the 5-5 line.

6 is a cross-sectional view taken along line 6-6 of FIG.

7 is a cross-sectional view taken along line 7-7 of FIG.

8 is a plan view of a latch-bolt assembly for attachment to a door.

9 is a partially broken view of the first face of the latch-bolt assembly.

10 shows a second side of the clasp-bolt assembly with parts omitted.

11 is a bottom view of the latch-bolt assembly.

12 is a view illustrating the outlet device of the present invention used in the double door, and

13 is a cross-sectional view taken along the 12-12 line of FIG.

* Explanation of symbols for main parts of the drawings

10: door 10a, 10b: door surface

12 emergency exit opening and closing assembly 14 housing

16 cover 18 push-bar

20: door post 29: handle

30 clasp-bolt assembly 31: front base plate

31a: Holding 31b: Home

32: clasp bolt 32a: pin

32b: banana slot 33: auxiliary latch bolt

35: pivot pin 35a: return spring

50: strike assembly 51: slot

53 ramp 52 fixed base plate

54, 56: groove

The present invention relates to an outlet device comprising a clasp bolt assembly mounted to a surface of a door member and a cooperative strike assembly mounted to a door frame member such as a door holder. In particular, the present invention relates to an exit device for an outer open metal door that is held locked when severely twisted by fire or other force.

In the prior art, it has sometimes been recognized that, although not necessarily, it is desirable to keep a closure such as a door closed. For example, it is usually believed that it is best to keep the door closed to prevent passengers from bouncing in the car towards the road in the event of a traffic accident. However, it was found that the door frame is disengaged from the door strike because the door frame is distorted by the collision force in the event of a high force on the car and the car door is opened by shaking. Similarly, fire emergency doors, which are preferably closed in the event of a fire, often distort the door latch from the door strike because the door or door frame member is twisted. Similarly, the door member may be twisted or detached when excessive force is applied to the door member by the fire water from the fire hose in the event of fire.

In the prior art, various attempts have been made to cut an exit device in which a closure such as a door is unintentionally opened by a twist or the like of the door member. US Pat. No. 2,703,612 discloses an exit device for a car door that is used to prevent accidental opening of the door by twisting the vehicle body. The disclosed device consists of a door member protruding past the free edge of the door and a socket means in the door jamb to receive the door member when the door is closed. The outer free protruding end of the door member provides an up and down window displaced from the root portion perpendicularly and / or inwardly with respect to the cooperative doorpost to achieve the desired interlocking engagement, and the socket member is provided within the doorpost to accommodate the misaligned door member. Correspondingly formed. In a preferred form, the closure device comprises a lug or dovetail member secured to the free end of the door such that the closure device protrudes slightly from the edge of the door, the member being received in the socket member of the frame. Suitably arranged. Preferably the lug and the socket cooperating therewith are placed as close as possible to the door latch member. This is because the resistance to edge separation at that point can be maximized as much as possible.

Apparatuses and locking methods are disclosed in US Pat. No. 4,401,330 that maintains a closure, such as a door, in a closed state when the door member is subjected to thermal twisting by a fire. The door latch is said to be open or detached because a door frame member, such as a door holder holding a door strike, is fixed to the floor at the bottom and to the ceiling at the top. As soon as it receives heat, the door member tries to stretch. However, because it is fixed, the door member does not expand, and twisting and deformation occur, so that the locking or latching device is separated. In order to avoid such deformation and separation, Patent No. 4,401,330 proposes to provide a free space above or below the frame member so that it can be stretched without twisting.

According to the disclosed patent, there is provided a clasp mechanism that is always separated in the normal state and is engaged when it starts to increase due to heat, thereby locking the door or door frame such as the door post.

A clasp mechanism is disclosed in US Pat. No. 4,437,693, in which a cover melts due to excessive heat in the event of a fire, the containment plate slides into the operating position, thereby preventing the clasp means from shrinking and consequently preventing the device from being released. This patent provides a member of a kit that allows the use of containment means in existing door frames.

Although the above patents do not limit the problem faced by the applicant, the solutions to this problem are not perfectly acceptable. Because it is very complicated and there is a need to modify the structure of the closure.

It is therefore a primary object of the present invention to provide an outlet device consisting of a clasp-bolt assembly and a cooperative strike assembly that lock a closure, such as a door that remains locked when subjected to strain, including heat.

Another object of the present invention is to provide an outlet device consisting of a clasp-bolt assembly and a cooperative strike assembly that is simple, low in production cost, and locks the closure even when subjected to strain.

Another object of the present invention is to provide an outlet device consisting of a clasp-bolt assembly and a cooperative strike assembly, which is simple and low in production cost and locks the closure even when the deformation force is closed.

In order to achieve the above objects, the exit device for a predominantly open door provided in accordance with the present invention is a door frame member or jammer to cooperate with a steel plate member and clasp-bolt assembly equipped with a clasp-bolt assembly fixed to the surface of the door. It consists of a strike assembly mounted on it. The front face of the plate member consists of protrusions positioned so that one of the protrusions lies on each side of the latch bolt of the clasp-bolt assembly already mounted. The strike assembly consists of recesses for receiving protrusions. The recess of the strike assembly is shaped in relation to the protrusions such that the protrusions can vertically move within the recess a predetermined distance before striking the wall of the recess.

In the event of a fire or other major deformation forces, the protrusions can freely move vertically limited, but because they engage with the walls of the grooves, limiting the linear extension of the frame at the clasp, causing separation of the clasp bolt and strike. Excessive stress, which may have caused the clasp bolts, may also prevent the protrusions in the recesses from restricting the strike and door frame members from moving away from the clasp assembly. The rigid face of the clasp-bolt assembly also restricts the strike and frame member from moving inward towards the clasp assembly.

Thus, the clasp-bolt assembly of the presently disclosed device is not separated from the strike assembly even when subjected to enormous forces such as heat from fire or physical forces such as impact from a collision. The outlet device according to the invention is mainly applied to the outer open door, in which case the latch-bolt assembly is applied to one surface of the door.

Other objects and advantages of the present invention will now be described in detail with reference to the accompanying drawings.

1-3 illustrate an emergency exit opening and closing assembly 12 using a door 10 and an exit device of the present invention. As shown, surface 10a of door 10 includes housing 14 holding clasp-bolt assembly 30, cover 16 covering clasp-bolt assembly 30, clasp-bolt assembly 30 Push bar 18 for connecting and disconnecting the clasp 32 of the is mounted. As shown in FIG. 3, the handle 34 is located on the surface 10b of the door 10 with the working earth penetrating the door. Strike assembly 50 is adapted to cooperate with clasp-bolt assembly 30 and is secured to frame member, ie jamb 20.

Although the illustrated assembly includes a handle 34, it is also possible to open the door with a key from the outside, preferably only using an internal locking mechanism. Sometimes it may not be desirable to apply a handle or key mechanism. These points are of little importance to the invention now disclosed and claimed.

As best shown in FIG. 4, the outlet device consists of a latch-bolt assembly 30 and a strike assembly 50. The clasp-bolt assembly 30 includes a front metal base plate 31 of rigid metal with protruding lugs 34 and 36 and a plurality of base plates for mounting the base plate to the door or closing member 10. And mounting holes 38, and clasp-bolt mechanism 40. The clasp-bolt mechanism 40 consists of a main clasp bolt 32 and an auxiliary clasp bolt 33, both pivoting about a pin member 35 associated with a return spring 35a.

As best shown in FIG. 8 and FIG. 9, the base plate 31 is heavy and hard rapidly, and since the mounting holes thereon are located on both sides of the pivot pin member 35, a large hip is placed at an important point in case of fire. It should be appreciated that reinforced support is provided to prevent the assembly from twisting when applied. As best shown in FIGS. 9 and 10, the latch bolt 32 has pins 32a spaced from the pivot pin 35 on both sides of the latch bolt, and the pins 32a are banana-shaped curves 32b. Move along. Since the pin 32a moves along the banana curve 32b, the latch mechanism is prevented from bending due to a large force in the event of fire.

As illustrated in FIG. 11, the clasp-bolt cooker is secured with struts 31a at the bottom of the base plate 31, and the strut is bent upward and recessed into the groove 31b of the base plate. As best shown in FIG. 11, it is additionally fixed at 31c. Since the strut 31a is fixed by the screw means 31d, the clasp-bolt mechanism 40 is prevented from being separated from the base plate 31 by a large external force in case of fire.

Strike assembly 50 consists of a fixed base plate 52 having a number of holes or slots 58 for mounting the assembly to a frame member. This assembly also includes recesses 54, 56 for receiving protrusions 34, 36 of the clasp-bolt assembly 30. As illustrated, the recesses 54 and 56 are wider than the protrusions 34 and 36 so that the protrusions may have limited vertical movement within the recesses. The assembly 50 also consists of a ramp 51 and a ramp 53 for receiving and retaining the latch bolt 32 to keep the door closed.

It is also apparent that the front base plate 31, which is integral with the lugs or the protrusions 34 and 36, can be conveniently manufactured as a solid structure with a solid metal. The clasp-bolt assembly mounted on base plate 31 in accordance with the present invention may generally be any existing clasp-bolt assembly, such as a clasp-bolt assembly as disclosed in US Pat. No. 3,877,262 assigned to the applicant. have. However, the clasp-bolt assembly illustrated in the accompanying drawings secures the clasp-bolt mechanism 40 to the base plate 31 using the strut 31a, which moves the clasp-bolt 32 along the curve 32b. It is unique in the way of fixing to the mechanism by the pin 32a and in the way of fixing the base plate 31 to the door member 10 through the holes 38 located opposite to the pivot pin 35. The strike assembly is also an integral structure of hard metal.

Although FIGS. 8 and 9 are similar to FIGS. 1 and 3, FIGS. 8 and 9 illustrate a double door assembly. As shown in FIGS. 8 and 9, a strike assembly 50 is attached to the opposing surface of the scaffold 20 to engage the clasp-bolt assembly 30.

The operation of the outlet device according to the invention is best shown in 5, 6 and 7 degrees. The clasp-bolt assembly 30 is mounted with a clamp 37 on the surface 10a of the door 10. As best shown in Fig. 5, the door has a reinforcement plate 10c. The strike assembly 50 is attached to the door frame member 20 with the reinforcement plate 20a with a clamp 57. As best shown in FIG. 6, the latch bolt 32 engages the slot 51 and the lamp 53 so that the door is locked to the frame base.

In FIG. 5, there is a space X where the projections 34 and 36 can perform limited vertical movement in the recesses 54 and 56 when the door and frame are locked. In FIG. 7, the clasp member 36 has a space Y for limited inward transverse motion and a space Z for limited outward transverse motion in the recess 54.

Normally, the outlet device according to the invention operates similarly to existing shackle bolts and strike assemblies. However, if the outlet device disclosed herein is subjected to a hinged large deformation force that causes the separation of the clasp and strike by the introduction of the cam action angle, when the clasp-filled portion of the door jammer is bent by fire, The protrusions 34 and 36 are coupled to the walls of the recesses 54 and 56 of the strike assembly to allow the door 10 and the door holder 20 to move in a relatively identical manner, thereby allowing the door 10 to be placed in the door holder 20. Can not be separated from

In the event of a fire, linear expansion of the clasp 20 is limited by the protrusions 34 and 36 of the base plate 31 that engage the walls of the grooves 54 and 56 of the strike assembly, so that the bulged portion of the strike Because they are forced to the sides of the clasp bolts, they do not occur in excessive clasp bolts 32 and other parts of the clasp assembly. In addition, this linear expansion is limited such that the secondary latch 33 of the dual locking mechanism cannot be separated from the strike projection, which may cause the double locking of the latch bolt to become inoperative. This protrusion restricts the lateral movement from the strike, the door brace and the clasp assembly, and stabilizes the device by restricting the strike and the door locating inwards towards the clasp assembly with the rigid side of the clasp assembly.

The dual locking mechanisms approximately illustrated in the accompanying drawings are illustrated and described in detail between the third and fourth columns of US Pat. No. 3,877,262 and the third row and fourth column of columns 58 to 33 of five columns.

Claims (16)

A locking mechanism comprising a clasp-bolt assembly and a counter strike assembly, the clasp bolt assembly comprising a base plate, a clasp-bolt mechanism including means and a means for mounting the clasp-bolt mechanism to the base plate, The base plate has means for securing the base plate to a closure such as a door and two upright protrusions, one of the protrusions being mounted to the base plate when the clasp-bolt mechanism is mounted to the base plate. And the strike assembly comprises a front plate, means for mounting the front plate to a closure frame member, and recesses and recesses for receiving the protrusions of the clasp-bolt assembly. Locking mechanism consisting of means for receiving. The locking mechanism as set forth in claim 1, wherein the protrusion is capable of limited vertical movement in the recess because the recesses in the strike assembly are wider than the protrusion of the base plate. 3. A locking mechanism as claimed in claim 2, wherein said projection is capable of limited transverse movement within said groove since said grooves are not substantially deeper than the thickness of said protrusion. 4. The lock mechanism of claim 3 wherein the clasp-bolt assembly consists of an auxiliary clasp. 2. The clasp-bolt mechanism of claim 1, wherein the clasp-bolt mechanism consists of the pivot pin for the clasp, and the means for securing the base plate to the closure is substantially in line with the pivot pin of the clasp-bolt mechanism. Locking mechanism consisting of a hole in the base plate. 6. The apparatus of claim 5, wherein said means for securing a singer clasp-bolt mechanism to said base plate comprises struts, said base plate having holes for receiving said struts and screw means for securing said struts to said base plate. Locking mechanism. 7. The apparatus of claim 6, wherein a bottom of the base plate is formed of a groove, the pillars are bent to be flush with the groove, and the bent pillars are fixed to the base plate by screwing means. 8. The apparatus of claim 7, wherein the latch-bolt mechanism consists of pins spaced from the pivot pin and curved slots for receiving the pins. An outlet assembly comprising an outer open closure means and a cooperating closure frame member, the latch being secured to an inner surface of the closure means and a strike paired with the latch-bolt assembly to the closure frame member. There is an assembly, the clasp-bolt assembly comprising a base plate secured to the closure means and a clasp-bolt mechanism comprising a clasp and means for mounting the assembly to the base plate, wherein Upright protrusions, one of which lies on one side of the clasp of the clasp-bolt mechanism, the strike assembly comprising a front plate mounted to the closure frame member, and the protrusion of the clasp-bolt assembly Grooves for manually manipulating the handle and means for receiving the latch on the latch-bolt assembly. St. outlet assembly. 10. The outlet assembly of claim 9 wherein the protrusions are capable of limited vertical movement within the recesses because the recesses are slightly wider than the protrusions. The outlet assembly of claim 10, wherein the protrusion is capable of only limited transverse movement within the recess because the recess is not substantially deeper than the thickness of the protrusion. 12. The assembly of claim 11, wherein the clasp-bolt assembly consists of an auxiliary clasp. 10. The clasp-bolt mechanism of claim 9, wherein the clasp-bolt mechanism consists of the clasp pivot pin, wherein the means for securing the base plate to the closure is substantially in direct alignment with the pivot pin of the clasp-bolt mechanism. Said assembly consisting of a hole in said base plate. 14. The apparatus of claim 13, wherein said means for securing said clasp-bolt mechanism to said base plate comprises struts, said base plate having holes for receiving said struts and screw means for securing said struts to said base plate. Said assembly constructed. 15. The assembly according to claim 14, wherein the bottom of the base plate consists of a groove, the posts are bent to the same height as the groove, and the bent posts are fixed to the base plate by screwing means. 16. The assembly of claim 15, wherein the latch-bolt mechanism consists of pins spaced from the pivot pin and bent slots receiving the pins.

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