KR20120055953A - Draw Latch Locking Equipment - Google Patents

Abstract

PURPOSE: A draw latch locking device is provided to maintain a locked state of a draw latch by inserting a holding guide plate into a locking hole of a base plate when a main body is pushed toward the base plate which is combined with a fixed body. CONSTITUTION: A knob groove and a key bundle are installed on the upper part of a main body(10). Pinholes are respectively and separately formed on both side surfaces of the main body. The key bundle forms a bolt hole on the lower central part of the main body. A guide protrusion is formed by being projected into a square shape. A holding guide plate(30) is inserted into the guide protrusion and forms an inclined surface on a leading end with the guide hole which is formed in order to arrange a compressed spring on the leading end. A guide plate cover(60) is combined with the bolt hole of the guide protrusion using a bolt while covering the holding guide plate. A base plate(90) is combined with a pin hole formed on both rear sides of the main body using a hinge pin.

Description

Draw Latch Locking Equipment

The present invention relates to a draw latch applied to doors of home appliances, industrial products, dry bulbs, etc. More specifically, after unlocking the draw latch with a key, the main body is coupled to the fixed body without a key in the unlocked state. The latch guide plate is moved to the base plate side and is inserted into the locking hole of the base plate to be locked to maintain the draw latch locked state relates to a draw latch locking device that can easily open and close the door.

In the conventional door handle, the door handle and the ratchet mechanism are separately installed for simple opening and closing. When the door is opened, the handle is opened in conjunction with the ratchet mechanism, and when the door is closed, only the ratchet mechanism moves forward to close the door. Doing. In particular, a gas oven range, a warmer, a large refrigerator, etc., which have a sliding door, have handles separately, and a permanent magnet is installed at most parts where the door and the body meet.

However, in such a manner that the ratchet mechanism is interlocked with the handle, it is often impossible to confirm whether the ratchet mechanism is completely closed inside the door. Therefore, there is a problem that the heat loss is very large in the gas oven range or warmer, food is not cooked or overheated.

In addition, in the method of joining the door and the main body by the permanent magnet, the door has convenience in opening and closing the door, but the failure rate of the door is much higher than the above case, and thus has a very bad heat loss and overheating.

The door handle of the Republic of Korea Utility Model Registration No. 89-15781, in which the technology related to the ratchet mechanism combined with the handle that can sufficiently perform the ratchet action while compensating for the door not closing properly, is introduced.

The door handle includes a base fixed to the fixed body surface, a ratchet connected to the base and flipped backward by a predetermined angle, a striker fixed to the door surface to allow the front of the ratchet to ride over, a ratchet and a hinge It is composed of a handle that can be flipped backwards by a certain angle, so that the base is fixed to the fixed body surface, and the striker is fixed to the fluid body surface to secure the striker by the ratchet to secure the door, which is the fluid body in a secure binding state. By closing the operation of the can not open to prevent heat loss such as a refrigerator or refrigerator, and to achieve a simple and easy release state by the operation of the handle, but many members are intricately interconnected At the same time, due to frequent failures There is an uneconomic problem.

On the other hand, the door handle is locked and released by inserting a key into the key bundle, so the user always checks the lock state of the main body according to the state in which the key is inserted into the key bundle left and right.

However, when the user pulls the main body with the key unplugged and locked by the user's mistake or mistake, the main body, the ratchet, and the striker can all be separated if the main body is easily lifted, thereby opening the door. There was a problem that the storage of such home appliances, industrial products, dry bulbs made.

Techniques for solving these problems are introduced in Korean Utility Model Registration Application No. 2002-0034081.

The prior art corresponds to the door handle of the opening and closing type and to freely adjust the length of the striker to achieve a safe and good fastening state even if an error in the assembly position of the striker and the door handle occurs.

However, the above-described technique, etc., because the ratchet of the door handle is hinged to the handle body to enable elastic flow back and forth, when the ratchet is coupled to the striker, the ratchet is not controlled and freely flows and strikes the upper surface of the striker to strike the paint. There is a problem in use that causes the treated surface to peel off or become damaged to provide a beautiful appearance.

To solve this problem, by controlling the elasticity of the ratchet that is hinged to the handle body, the ratchet can be securely combined without damaging the surface of the striker without damaging the surface of the striker when the ratchet and striker are fastened to maintain a beautiful appearance. The door handle for usable use is introduced in Korean Utility Model Registration No. 2004-0037015.

And a base fixed to the surface of the fixed body, a ratchet hinged on the base, the ratchet being retracted back and forth by a predetermined angle while moving back and forth, and a striker fixed to the door surface so that the front end of the ratchet can be crossed over; In the door handle is hinged and coupled to the base and elastically moved back and forth by a spring around the hinge pin, the handle is integrally protruded in the rear end in the longitudinal direction, the key is formed in the center, the body, Hanging guide plate and installed in the lower portion; A guide groove formed in the locking guide plate and having a locking protrusion of a key bundle; Domestic utility model registration application for which the door handle is pre- filed, characterized in that it comprises a return spring that is elastically supported in correspondence with the support pin formed on the lower end of the locking guide plate so that the locking projection is inserted into the guide groove. Introduced in 0003273.

The applicant of the present application releases the draw latch with a key and then presses the main body toward the base plate coupled to the fixed body without the key while the main body is unlocked so that the locking guide plate moves and locks by being inserted into the locking hole of the base plate. It has developed a draw latch locking device that can keep the door open and convenient to open and close the door.

The object of the present invention is to unlock the draw latch with a key and then press the main body to the side of the base plate coupled to the fixed body without the key in the unlocked state, the locking guide plate is moved to be locked by being inserted into the locking hole of the base plate It is to provide a draw latch locking device that can keep the draw latch locked to facilitate the opening and closing of the door.

Another object of the present invention is made of a simple structure to make the opening and closing of the door more securely and easily, when the lock is released, the draw latch locking device that can easily check the locked state, since the main body is always rotated upwardly To provide.

Still another object of the present invention is to provide a draw latch locking device capable of locking a draw latch without a key only when releasing the lock and without requiring a key when locking the draw latch.

Still another object of the present invention is to provide a draw latch that can prevent a theft and achieve a safe dry state because anyone can lock the door without a key when the door is open.

The present invention for achieving the above object in the draw latch locking device, the key groove is provided in the key groove portion protruding from the handle groove and the upper central portion on the top and the pin hole is formed in each of the positions spaced apart on both sides and A key hole is formed in the lower center of the main body, and a key bundle formed with a guide protrusion protruding in a rectangle, and a guide hole formed in the guide protrusion and a compression spring is positioned at the tip, and an inclined surface at the tip, and a spring on one rear side. A locking guide plate having a fixing protrusion, a guide washer having a hole formed in the upper portion of the guide protrusion, a guide plate cover covering the locking guide plate and coupled to a bolt hole of the guide protrusion by a bolt, and pinholes formed at both rear sides of the main body. The hinges of the ribs bent on both sides of the rear to be coupled with the hinge pin and the sleeve coupled to the fixed body on both sides The base plate has a crew hole and a circular hole in the center and a locking hole formed at the tip, a torsion spring having one end installed at the center of the hinge pin to support the base plate and the other end to the main body, and pin holes formed at both sides of the center of the main body. It is coupled to the hinge pin through the hinge hole on both sides and the latch formed a protruding surface protruding curved upper portion, and a striker for fixing to the door so that the rear lower end of the latch can ride over. It is characterized by.

The guide hole of the locking guide plate is inserted into the guide protrusion is characterized in that a small rectangular hole through which the front end of the rectangular hole through which the compression spring can be fitted is integrally formed.

After the tension spring is installed on the spring fixing protrusion of the locking guide plate and the spring hook formed on one side of the main body to release the lock of the key bundle with a key, the key bundle is installed to be restored to its original position by the restoring force of the tension spring. do.

The torsion spring is installed so that one end of the base plate and the other end is supported on the main body to unlock the key bundle with a key, and the main body is installed to rotate upward about the hinge pin by the torsion spring force.

The main body presses the main body toward the base plate coupled to the fixed body without the key in the unlocked state, the tip inclined surface of the locking guide plate is in contact with the tip of the base plate and the locking guide plate is pushed to the rear and the tip of the inclined surface is When positioned in the locking hole is characterized in that the locking guide plate is moved forward by the restoring force of the compression spring is coupled so that the leading end of the locking guide plate is locked to the locking hole.

As described above, in the present invention, after the draw latch is unlocked with a key, the main body presses the main body toward the base plate coupled to the fixed body without the key in a state in which the lock latch is released, and the locking guide plate moves and is inserted into the locking hole of the base plate. Since the draw latch is kept locked, the door can be conveniently opened and closed.

In addition, the simple structure makes the opening and closing of the door more secure and easier, and when the lock is released, the main body is always rotated upward, so that the locking state can be easily checked.

In addition, the draw latch requires a key only when releasing the lock, and there is an effect that the lock can be performed without a key when locking.

In addition, when the door is open, anyone can lock without a key, so that the door can not be opened, thereby preventing theft and achieving a safe condition.

In addition, the product can be manufactured in a structure that enables simple and convenient use, improving productivity and achieving economical use, and improving product reliability.

1 is an exploded perspective view showing a draw latch according to the present invention.
Figure 2 is a perspective view of the draw latch according to the present invention.
Figure 2 is a bottom perspective view showing a draw latch according to the present invention.
Figure 4 is a longitudinal sectional view showing the main portion of the draw latch according to the present invention;
Figure 5a is a state in which the draw latch of the present invention is installed on the door.
Figure 5b is a state in which the body is flipped open the door in the state in which the door is closed by the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood, however, that the invention can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

1 is an exploded perspective view showing a draw latch according to the present invention, Figure 2 is a perspective view showing a draw latch according to the present invention, Figure 3 is a bottom perspective view showing a draw latch according to the present invention, Figure 4 is a longitudinal sectional view showing the main portion of the draw latch according to the present invention. 5A is a state diagram in which the draw latch of the present invention is installed in the door, and FIG. 5B is a state diagram in which the main body is opened and the door is opened while the door is closed by the present invention.

The present invention relates to a draw latch applied to doors of home appliances, industrial products, dry bulbs, etc. More specifically, after unlocking the draw latch with a key, the main body is coupled to the fixed body without a key in the unlocked state. The latch guide plate is moved to the side of the base plate, and the lock latch locking device that can be conveniently opened and closed because the lock latch of the base plate is inserted into the locking hole of the base plate to keep the lock latch locked state.

Referring to Figures 1 to 5b the draw latch locking device of the present invention will be described.

In the draw latch locking device, the main latch 10 of the draw latch 100 is provided with a keyhole 13 in a keyhole 11 protruding from the handle groove 12 and an upper center portion thereof, and spaced apart from both sides. Pinholes (17, 18) are formed in each position and the handle projection (12a) is formed at the lower end.

A bolt hole 15 is formed in the lower center of the key bundle 13 installed in the main body 10, and a guide protrusion 14 protruding in a rectangle is formed.

The locking guide plate 30 fitted to the guide protrusion 14 has a guide hole 31 formed to have a compression spring 40 positioned at the tip and an inclined surface 32 at the tip, and a spring fixing protrusion 33 at the rear side thereof. Formed.

A guide washer 50 having a hole 51 formed on the guide protrusion 14 is installed.

The guide plate cover 60 covering the locking guide plate 30 is formed with a cover hole 61 in the center of which both sides are bent and coupled to the bolt hole 15 of the guide protrusion 14 with the bolt 70.

The pinholes 18 formed at both rear sides of the main body 10 are hinged holes 96 of the ribs bent at both rear sides to be coupled to the hinge pins 96, and the screws 71 at the fixed bodies B at both upper sides thereof. The base plate 90 is provided with a screw hole 92 to be coupled with a circular hole 91 in the center and a locking hole 93 at the tip.

At the center of the hinge pin 96, one end of the base plate 90 and the other end of the torsion spring 95 is installed to be supported by the main body 10 is installed.

The hinge pins 23 are formed in the pinholes 17 formed at both sides of the center of the main body 10 through the hinge holes 22 formed at both sides of the latch 20 having a protruding surface 21 in which the upper center portion is curved. To combine.

Both sides fixing part 202 of the striker 200 having the locking jaw 201 formed in the door A is fixed with a screw 72 so that the rear lower end of the latch 20 can be crossed over.

The guide hole 31 of the locking guide plate 30 is integrally formed with a small rectangular hole into which the compression spring 40 can be inserted through the tip of the guide hole 14 inserted into the guide protrusion 14 so as to move forward and backward. .

After the tension spring 80 is installed on the spring fixing protrusion 33 of the locking guide plate 30 and the spring hook 16 formed on the inner side of the main body 10 to release the lock of the key bundle with a key, and then the key bundle. 13 is installed to be restored to the original position by the restoring force of the tension spring (80).

The torsion spring 95 is installed so that one end of the base plate 90 and the other end is supported on the main body 10 to release the lock of the key bundle with a key, and the main body 10 is hinge pin 23 by a torsion spring force. ) Will be installed to rotate upward.

The main body 10 is in the unlocked state without pressing the main body 10 to the base plate 90 coupled to the fixed body (B) without pressing the inclined surface 32 of the guide plate 30 is the base plate 90 When the locking guide plate 30 is pushed backward and the tip of the inclined surface 32 is located in the locking hole 93 of the base plate 90, the locking guide plate is restrained by the restoring force of the compression spring 40. 30 is moved forward so that the front end of the locking guide plate 30 is fitted into the locking hole 93 to be locked.

In the present invention, the draw latch 100 is fixed to the base plate 90 coupled to the main body 10 by a screw 71, usually fixed at the side of the fixed body (B) such as home appliances, industrial products, dry bulbs, etc. It is desirable to.

In addition, the latch 20 forms a protruding surface 21 in which the upper center portion is curved to protrude, and is formed to be easy to hold by hand and looks aesthetically pleasing, and only when the main body 10 is fully flipped back and the front end of the latch 20. To reach.

The striker 200 is formed with a locking jaw 201 at the rear of the center so that the rear of the latch 20 is hooked on the inner side.

Here, the striker 200 is fixed to the door A, such as a home appliance, an industrial product, a dry bulb, with a screw 72.

The key bundle 11 protruding from the upper central portion of the main body 10 and the protruding surface 21 protruding from the upper central portion of the latch 20 are formed to face each other.

The draw latch 100 of the present invention configured as described above operates as follows.

4 to 5b is a state in which the draw latch of the present invention is installed in the door, as shown in FIG. 5a, the main body 10 is fixed to the fixed body (B) with a screw 71 is fixed to the striker 200 The latch 20 maintains a secure binding state to prevent the door A from being opened and closed.

In the above state, when the door A is closed and the key is inserted into the key groove of the key bundle 13 of the main body 10 and rotated 90 degrees, the key bundle 13 is rotated and coupled to the guide protrusion 14. The guide plate 30 is rotated 90 degrees and the tip inclined surface 32 side is released from the locking hole 93 of the base plate 90.

At this time, the spring fixing protrusion 33 of the locking guide plate 30 and the tension spring 80 connected to the spring hook 16 of one side inside the body 10 is extended.

Subsequently, the main body 10 is rotated upward with respect to the hinge pin 96 by the torsion spring 95 force installed on the hinge pin 96, and the lock is released and coupled to the main body 10 and the hinge pin 23. The latch 20 is moved rearward and lifted upward to move away from the latching jaw 201 of the striker 200 so that the door A and the fixed body B are separated to open the door A. FIG.

At this time, when the key is removed from the key bundle 13, the locking guide plate by the restoring force of the spring fixing protrusion 33 of the locking guide plate 30 and the tension spring 80 connected to the spring hook 16 on one side of the body 10 inside. Is rotated to its original position and restored.

To lock again in the same state as in FIG. 5B where the lock is released as described above, the main body 10 pushes the hinge pin 96 by pressing the main body 10 toward the base plate 90 coupled to the fixed body b without a key. The latch 20 coupled to the main body 10 and the hinge pin 23 is also moved downward, and the latch 20 moves forward and is caught by the catching jaw 201 of the striker 200 again. .

Then, the tip inclined surface 32 of the locking guide plate 30 abuts against the tip of the base plate 90, and the locking guide plate 30 is pushed backward while the tip of the inclined surface 32 locks to the base plate 90. If the hole 93 is matched, the locking guide plate 30 is moved forward by the restoring force of the compression spring 40, and the tip of the locking guide plate 30 is inserted into the locking hole 93 to be locked.

When the lock is released as described above, the main body 10 is always maintained in a upwardly rotated state, so that the locked state can be easily checked.

The draw latch as described above requires a key only when releasing the lock and can be locked without a key when releasing it.

Therefore, when the user presses the main body 20 without checking the position of the key bundle 13, the key bundle 12 is automatically locked.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, The present invention may employ various changes, modifications, and equivalents. It is clear that the present invention can be suitably modified and applied in the same manner. Accordingly, the above description does not limit the scope of the invention as defined by the limitations of the following claims.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but it will be apparent to those skilled in the art that various modifications are possible without departing from the scope of the present invention.

100: draw latch 10: main body
11: Kitabu 12: Knob groove
12a: Handle 13 13: Bundle
14: guide protrusion 15: boltman
16: Spring hanger 17: Pinhole
18: Pinhole 20: Latch
21: protrusion side 22: hinge hole
23: hinge pin 30: jam guide
31: guide hole 32: inclined surface
33: spring fixing protrusion 40: compression spring
50: washer hole 51: washer hole
60: cover cover 61: cover hole
70: Bolt 71: Screw
72: screw 80: tension spring
90: base plate 91: round hole
92: screw hole 93: locking hole
94: hinge hole 95: torsion spring
96: Hinge pin 200: Striker
201: Jam Jaw 202: Government

Claims (5)

In the draw latch locking device,
The main body is provided with a key groove in the key groove protruding the handle groove and the upper center portion in the upper portion, and the main body formed with pinholes at positions spaced on both sides,
A key hole in which a bolt hole is formed in the lower center of the main body, and a guide protrusion formed in a rectangular shape is formed;
A guide hole which is inserted into the guide protrusion and forms a sloping surface at the tip and a guide hole formed so that the compression spring is positioned at the tip, and a spring guide protrusion is formed at one rear side thereof;
A guide washer having a hole formed in an upper portion of the guide protrusion;
A guide plate cover covering the locking guide plate and coupled to the bolt hole of the guide protrusion by a bolt;
Pinholes formed at both rear sides of the main body include hinge holes of ribs bent at both rear sides to be coupled with hinge pins, screw holes coupled to the fixed body at both upper sides, and a base plate having a circular hole and a locking hole at the front end thereof;
At the center of the hinge pin is a torsion spring, one end of which is installed to support the base plate and the other end to the main body,
Pinholes formed on both sides of the center of the main body is coupled to the hinge pin through the hinge hole on both sides and the latch forming a protruding surface protruding curved upper portion;
And a striker fixed to the door so that the rear lower end of the latch can be walked over.
The method of claim 1,
The guide hole of the locking guide plate is inserted into the guide projection portion of the draw latch locking device, characterized in that the tip of the rectangular hole is formed so that the compression spring can be inserted through the tip is formed integrally.
The method of claim 1,
After the tension spring is installed on the spring fixing protrusion of the locking guide plate and the spring hook formed on one side of the main body to release the lock of the key bundle with a key, the key bundle is installed to be restored to its original position by the restoring force of the tension spring. Draw latch locking device.
The method of claim 1
The torsion spring is installed so that one end of the base plate and the other end is supported on the main body to release the lock of the key bundle with a key and the main body is installed so that the main body rotates upwardly around the hinge pin by the torsion spring force. Locking device.
The method of claim 1,
The main body presses the main body toward the base plate coupled to the fixed body without the key in the unlocked state, the tip inclined surface of the locking guide plate is in contact with the tip of the base plate and the locking guide plate is pushed to the rear and the tip of the inclined surface is When the locking hole is located in the draw latch locking device, characterized in that the locking guide plate is moved forward by the restoring force of the compression spring is coupled so that the leading end of the locking guide plate is locked to the locking hole.

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