JPH0628619Y2 - Locking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a door locking device.

(Prior Art) Conventionally, a locking device for a door of a livestock barn has a U-shape when viewed from a plane and forms a hooking rod advancing / retracting path from the side closing part to the other side opening. The base is pivotally supported on the support shaft that is hung between the upper wall of the closing part and the mounting member with a single locking blade is fixedly fixed to the fixed part of the pig house, and the hook bar provided on the movable door is attached. When the hook bar is positioned at the rear end, the single locking blade rotates downward while the single locking blade moves to the upper end while the hooking rod advances and retreats. It was designed to hold a stick.

(Problems to be solved by the invention) In the conventional locking device, in the inside of the pig house, that is, dust of feed such as powder or mist spray of chemicals, etc. In the meantime, dust or the like adheres and solidifies, which sometimes makes it impossible to operate the locking blades, particularly to engage the locking blades by downward rotation.

Also, when you open the door by pushing the gloved finger into the U-shape and rotating it upward to raise the locking blades, the width of the inside of the U-shape is narrow, so your fingers do not enter and open the door. There is a problem in that it is not easy to release the hooking of the hooking rod by the locking blade so as to obtain it.

(Means for Solving the Problems) The present invention has been made in view of the above-mentioned problems, and secures the latching lock of the hook bar by surely rotating the locking blade downward, and the locking blade. The upper part of the hook bar can be easily rotated upward to easily release the hook bar, and the hook bar has a U-shape when viewed from above, and the hook bar forward / backward path extends from the side closing part to the other side opening part. Form an arc notch in the upper part of the opposite wall, pivotally support the base part on the support shaft hung between the opposite walls, and form a beaked end bite part on the fan-shaped part on the free end side and saw teeth on the upper end part. A plurality of locking blades each having a finger hook portion are rotatably provided independently, and a mounting member is fixed to a fixed body, and a hooking rod is inserted into the hooking rod advancing / retracting path. While engaging with the edge-shaped engaging part, only the serrated finger-hanging part projects from the arc-shaped notch when engaging with the edge The locking device is provided.

(Operation) When the door body is moved to cause the hook bar to enter the hook bar forward / backward path of the mounting member, the locking blade is rotated upward along the edge of the fan-shaped portion,
As the hook bar reaches the inner part of the path for retracting the hook bar, the hook blade rotates downward, and the hook bar engages the hook bar to secure the lock.

It is possible to easily release the lock by hanging the gloved finger on the serrated finger hook portion of the locking blade protruding from the arcuate notch and rotating the locking blade upward.

Embodiment An embodiment of the present invention will be described with reference to the drawings.

As shown in FIG. 1, FIG. 2, FIG. 3, and FIG. 4, the mounting member 1 has a U-shape when viewed from above, and a hooking bar from the side closing part 2 to the other side opening 3. An advancing / retreating path 4 is formed between the opposite wall portions 5 and 5, and the hook rod advancing / retreating path 4 has a state in which the beak end is open toward the outside of the lateral closing portion 2.

Arc-shaped notches 6 and 6 are formed in the upper end portions of the opposite wall portions 5 and 5 near the lateral closing portion 2, and a spindle 7 is provided between the extended opposite wall portions 5 and 5 of the hook rod advancing and retracting path 4. And two locking blades 8 ₁ and 8 ₂ are attached to the support shaft 7. The locking blades 8 ₁ and 8 ₂ each have a base portion 8a pivotally supported on the support shaft 7, respectively. While the fan-shaped portion 8b hits the inner surface of the lateral closing portion 2 and the beveled end-shaped hooking portion 8c faces the hooking rod advancing / retracting path 4, the serrated finger-hooking portion 8d is It is set to project from the arcuate notch.

In this case, the mounting member 1 fixes the other side opening 3 to the support member 9 as shown in FIGS. 1, 2 and 3, and fixes the fixing portion of the pig pen or the like via the support member 9. It is fixed to the body 10.

On the other hand, a U-shaped hooking rod 12 is fixedly mounted on the vertical frame portion 11a of the moving body 11 such as a door body, and the moving body 11 moves the hooking rod 12 into the hooking rod forward / backward path 4 of the mounting member 1. It is freely accessible.

Since the present invention is configured as described above, if the hooking rod 12 of the moving body 11 is inserted into the pulling rod advancing / retreating path 4 of the mounting member 1,
Hooking rod 12 abuts against the peripheral edge of the locking wings _81, 82 of the fan-shaped portion 8b, the locking blade _81, 82 is upwardly rotated about the support shaft 7 with the advances, hooking rod 12 When the hook reaches the inner part of the hook rod advancing / retracting path 4 and comes off the periphery of the fan-shaped portion 8b, the locking blades 8 ₁ and 8 ₂ rotate downward, and the hook rod 12 is securely hooked by the beveled end-shaped hooking portion 8c. Put in.

Since there are a plurality of locking blades, at least one of them rotates downward, and since it has the beak end-shaped grab portion 8c, the grab bit is extremely reliable and the locked state is completely maintained.

Further, over the gloves fitted with a finger in an arc notch 6,6 locking wings ₈₁ that protrudes _from, 8 ₂ serrated finger rest 8d, the locking wings _81, 82 by upper pivot , Hook bar 1
Since it is possible to release the bite of 2, the moving body 11 can be easily separated from the fixed body 10.

(Effect of the Invention) Since the plurality of locking blades are independently rotatable, at least one locking blade can be rotated downward to secure the hooking of the hooking bar, and the locking blade can be locked. Since the engaging part has a beak-like shape, the hooking rod is sure to be engaged, and an arcuate notch is formed at the upper end of the opposite wall. Since the lever is projected, the locking blade can be easily rotated upward to release the hooking of the hook bar.

Further, in the locking device of the present invention, since the locking blades are housed in the opposite wall portion of the mounting member, there is no risk that a pig or the like misuses the locking blades to release the locking lock. You will not get injured by catching clothes on the locking wings.

[Brief description of drawings]

FIG. 1 is a perspective view of the locking device of the present invention, FIG. 2 is a plan view showing a related structure of a mounting member and a supporting member, FIG. 3 is a front view of the same, and FIG. 4 is a front view of a locking blade. is there. 1 ... Mounting member, 2 ... Side closing part, 3 ... Other side opening part, 4 ... Hook rod forward / backward path, 5 ... Opposite wall part, 6 ... Arc notch, 7 ... Support shaft, 8 ₁ , 8 ₂ ... Locking blades, 8c ... Beak end hooked portion, 8d ... Serrated finger hook portion, 10 ... Fixed body, 11 ... Moving body, 12 ... Hook rod.

Claims (1)

[Scope of utility model registration request] 1. A U-shape when viewed from the top, a hook rod advancing / retracting path is formed from the side closing part to the other side opening, and an arcuate notch is formed in the upper part of the opposite wall so that the hanging bar is hooked between the opposite walls. The base part is pivotally supported on the passed spindle, and the beveled end bite part is formed on the fan-shaped part on the free end side and the locking blades with the serrated finger hook part on the upper end part can be independently rotated. The mounting member provided on the fixed body is fixed to the fixed body, the hook bar is advanced into the hook rod forward / backward path, and the hook blade is engaged with the beveled edge engaging portion of the locking blade, and at the time of engaging the saw tooth from the arc-shaped notch. Locking device with only the finger hooks protruding.