JP3032364U - Bartack type latch device - Google Patents

Abstract

(57) Abstract: [Problem] To provide a bartack type latch device that can lock a door and lock a latch rod, and release the lock of the latch rod and unlock the door by a single operation. . A latch rod (4) is slidably inserted into a through hole (3) of a case (2), a latch rod (4) is slid in a backward direction by a spring (8), and a lock hole (9) intersecting the through hole (3) is formed in the case (2).
And a receiving hole 10 facing the lock hole 9 is provided on the latch rod 4
A lock pin 11 which is provided on the peripheral surface of the lock pin 11 and whose tip is engaged with and disengaged from the lock hole 9 is housed in the receiving hole 10 and is urged to slide in a projecting direction by a spring 12 to push the tip surface 13 of the lock pin 11. A push button 14 for retracting the lock pin 11 into the receiving hole 10 is provided in the case 2, and the push button 14 is biased to return by the spring 15.

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bartack type latch device used for locking a door of an electric equipment storage box or the like.

[0002]

2. Description of the Related Art In a conventional bartack type latch device, a latch rod is slidably inserted into a through hole extending in a longitudinal direction of a case fixed to a door, and a receiving portion for engaging and disengaging a tip end of the latch rod is fixed. The handle bar is fixed to the latch rod at a right angle, and a lock groove with which the handle bar engages is provided in the middle of the case.

In this bartack type latch device, the door is locked to the fixed frame body by engaging the tip of the latch bar with the receiving portion of the fixed frame body, and at that position, the latch bar is rotated around the through hole. The latch rod is prevented from moving backward by rotating the latch rod by engaging the lock rod with the lock rod by rotating the handle rod by rotating the handle rod.

However, in this conventional device, in order to unlock the door, a two-step operation of pulling up the knob rod to remove it from the lock groove and an operation of sliding the latch rod backward after pulling up is performed. I need. In order to lock the door, the operation of sliding the latch rod forward and the operation of pulling it down to engage the knob rod with the lock groove are required, and both operations require two-step operation. Is complicated.

[0005]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to lock a door and lock a latch rod, and to release the lock of the latch rod and unlock the door with a single operation. An object of the present invention is to provide a bartack type latch device that can be easily performed.

[0006]

Means for Solving the Problems Hereinafter, the description will be given with reference numerals in the accompanying drawings. In the bartack type latch device of the present invention, a latch bar 4 is slid into a through hole 3 of a case 2 fixed to a door 1. The fixing frame 6 is provided with a receiving portion 7 through which the latch rod 4 is movably inserted and whose tip portion is engaged and disengaged, and a spring 8 urges the latch rod 4 to slide backward.

A lock hole 9 that intersects the through hole 3 is provided in the case 2, a receiving hole 10 that faces the lock hole 9 is provided on the peripheral surface of the latch rod 4, and a lock pin 11 whose tip is engaged with and disengaged from the lock hole 9 is provided. Is housed in the receiving hole 10 and is urged to slide in the protruding direction by a spring 12 to push the tip end surface 13 of the lock pin 11 to retract the lock pin 11 into the receiving hole 10. The spring 15 urges the push button 14 to return.

When the door 1 is closed and locked, the tip of the latch rod 4 engages with the receiving portion 7 of the fixed frame body 6, and the lock pin 11 on the latch rod 4 side engages with the lock hole 9 on the case 2 side. However, since the engagement is held by the spring 12, the latch bar 4 is restrained by the case 2. The push button 13 pushed by the tip end surface 13 of the lock pin 11 is at the standby position most protruding from the front side of the case 2.

In order to unlock the door 1, the push button 14 is pushed against the bias of the spring 15, and the lock pin 11 is pushed against the spring 12 to be released from the lock hole 9 on the case 2 side. , Is pushed back into the receiving hole 10 on the latch rod 4 side. When the tip surface 13 of the lock pin 11 is pushed back to the same position as the peripheral surface of the latch bar 4, the latch bar 4 is released from the case 2 and the latch bar 4 is biased by the spring 8. Immediately afterward, the latch rod 4 slides backward, and the tip end portion of the latch bar 4 comes out of the receiving portion 7 of the fixed frame body 6. That is, by a single operation of pushing the push button 14, the restraint of the latch bar 4 and the lock of the door 1 are released immediately.

When the finger is released from the push button 14, the push button 14 is returned to the standby position by the bias of the spring 15. The door 1 is opened by pulling the latch bar 4 toward you. When the latch rod 4 is slid forward against the spring 8 after closing the door 1, the latch rod 4 is engaged with the receiving portion 7 of the fixed frame body 6 for a predetermined length when the latch rod 4 is slid forward. The receiving hole 10 on the 4 side faces the lock hole 9 on the case 2 side. Therefore, the lock pin 11 partially projects from the receiving hole 10 on the latch rod 4 side by the biasing force of the vane 12 and re-engages with the locking hole 9 on the case 2 side. That is, the door 1 is locked and the latch bar 4 is restrained immediately by a single operation of sliding the latch bar 4 forward.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION In the illustrated embodiment, the case 2 is composed of an outer member 16 and an inner member 17, a through hole 3 and a lock hole 9 are provided in the inner member 16, and a push button 14 is provided in the outer member 17. It is provided. The receiving portion 7 is formed in a socket shape and is fixed to the fixed frame body 6. The latch bar 4 is formed in a stepped shaft shape with a large-diameter portion 4a adjacent to the knob portion 5 at the base end and a small-diameter portion 4b whose distal end engages and disengages with the receiving portion 7. A core member 18 made of a hard metal is provided on the.

The biasing spring 8 of the latch rod 4 is composed of a compression coil spring. One end of the spring 8 abuts on the intermediate step surface 19 of the through hole 3, and the other end of the spring 8 is a step shoulder surface 20 of the latch rod 4. I am in contact with The lock pin 11 is formed in a cylindrical shape, and a part of the biasing spring 12 composed of a compression coil spring is housed in the hollow portion. The push button 14 is fitted in a through hole 21 provided in the outer member 17 of the case 2, and a flange portion 23 on the back side of the push button 14 is inserted into a recess 22 provided in the inner member 16 of the case 2.

A push-push shaft portion 24 having a diameter slightly smaller than that of the lock pin 11 is provided at the center of the rear surface of the push button 14, and when the push button 14 is pushed, the push-push shaft portion 24 enters into the lock hole 9. At this time, the flange portion 23 of the push button 14 abuts the bottom surface 25 of the concave portion 22 to regulate the pushing amount to be constant. The biasing spring 15 of the push button 14 is composed of a compression coil spring. The push button 14 is prevented from being removed from the case 2 by the flange portion 23 coming into contact with the rear side hole edge portion 26 of the through hole 21.

The large diameter portion 4 a of the latch rod 4 is provided with a restriction groove 27 in the length direction, and the case 2 is provided with a restriction protrusion 28 that engages with the restriction groove 27. Since the regulation protrusion 28 slides along the regulation groove 27, the latch bar 4 does not rotate about the through hole 3.

[0015]

As described above, in the bartack type latch device of the present invention, the latch rod 4 inserted into the through hole 3 of the case 2 is urged to slide backward by the spring 8 and crosses the through hole 3. The lock hole 9 is provided in the case 2, the lock pin 11 is housed in the receiving hole 10 on the side of the latch rod 4 facing the lock hole 9, and the lock pin 11 is slid and biased by the spring 12 in the protruding direction. Since the case 2 is provided with the push button 14 for escaping 11 from the lock hole 9 and retracting into the receiving hole 10, the restraint of the latch rod 4 and the locking of the door 1 can be performed by a single operation of pushing the push button 14. It is easy to unlock and the door 1 is locked and the latch bar 4 is restrained by a single operation of sliding the latch bar 4 forward. .

[Brief description of drawings]

FIG. 1 is a front view of a bartack type latch device according to an embodiment of the present invention.

FIG. 2 is a plan view of the barb type latch device.

FIG. 3 is a left side view of the bartack type latch device.

FIG. 4 is a right side view of the barb latch device.

5 is a cross-sectional view taken along the line AA of FIG.

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

[Explanation of symbols]

 1 Door 2 Case 3 Case Through Hole 4 Latch Rod 5 Latch Bar Grip 6 Fixing Frame 7 Receptor 8 Latch Rod Energizing Spring 9 Case Side Lock Hole 10 Latch Bar Side Receiving Hole 11 Lock Pin 12 Spring for biasing lock pin 13 Tip surface of lock pin 14 Push button 15 Spring for biasing push button

Claims (1)

[Scope of utility model registration request] 1. A fixed frame 6 is provided with a receiving portion 7 through which a latch rod 4 is slidably inserted in a through hole 3 of a case 2 fixed to a door 1, and a tip portion of the latch rod 4 is engaged and disengaged. The latch rod 4 is slidably biased in the backward direction by the spring 8, the lock hole 9 intersecting the through hole 3 is provided in the case 2, and the receiving hole 10 facing the lock hole 9 is provided on the peripheral surface of the latch rod 4. The lock pin 11 whose tip is engaged with and disengaged from the lock hole 9 is housed in the receiving hole 10 and is urged by the spring 12 to slide in the protruding direction.
A bartack type latch device in which a push button 14 for pushing the tip surface 13 of the above is pushed into the receiving hole 10 in the case 2 and the push button 14 is biased to return by a spring 15.