JPH0137076Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to an internal lock for a gate.

In general, double-gate gates have an operating handle provided on the outside of the site and a locking lever provided on the inside, connected by a shaft that is rotatably supported relative to the gate, and when the operating handle is rotated, An inner latch lock is installed in which the locking lever is engaged with and detached from a hook protruding from the inside of the adjacent gate. In addition, the same type of gate is equipped with a drop bar that can be raised and lowered freely to protect the inner latch from the force exerted perpendicularly to the door surface by wind pressure and humans and animals when closing, and to prevent noise generation. Then, the drop stick is dropped into a hole in the ground.

However, conventional drop bars are attached to the bottom of the gate, independent of the inner latch, which is attached at approximately the center height of the gate, so when opening and closing the gate, you have to turn the operating handle. In addition to unlocking and locking the inner latch, the gate had to be raised and lowered to unlock and lock it, which was a tedious task each time the gate was opened and closed. In addition, when in a hurry or thinking about other things, people sometimes forgot to lock or unlock the drop bar, making the protection of the gate uncertain.

Therefore, this idea was designed so that the inner lock and drop bar are locked and unlocked in conjunction with each other by operating the operation handle so that you do not forget to operate it when opening and closing the gate.
To provide an internal lock for a gate that eliminates the need to forget to operate a drop bar and securely protects the gate from wind pressure, impact, etc.

In addition, in conventional inner locks, the operating handle and the locking lever extend in opposite directions with respect to the axis of rotation, so their weights are almost balanced, or the locking lever is only slightly heavier. If your body or baggage accidentally hits the operating handle or locking lever, it may rotate with a small amount of force, resulting in the lock being unlocked easily, or if the lever is not fully tightened. This had the disadvantage that it could easily become known.

Therefore, the object of this invention is to solve the above-mentioned inconvenience by linking the drop bar to the inner lock.

Next, an embodiment of this invention will be described based on the drawings.

The gates 1 and 2 are supported by support columns 3 and 4, respectively, by known hinges (not shown) so that they can open double-sidedly. Place the covers 6, 7 on both the inner and outer sides of the vertical stile 5 of the right gate 2, screw the screws (not shown) that passed through one cover 6 into the other cover 7, and then tighten the covers 6, 7. It is fixed to the vertical stile 5. A base end 9 of a locking lever 8 is rotatably passed through one cover 6, and a base end 11 of an operating handle 10 is rotatably passed through the other cover 7. The proximal end 9 of the locking lever and the proximal end 11 of the operating handle are connected by a shaft 12 rotatably passing through the vertical stile 5. The locking lever 8 and the operating handle 10 are connected at right angles to the shaft 12 and extend in opposite directions.

Similar covers 14 and 15 are abutted on both the inner and outer sides of the vertical stile 13 of the left gate 1, and similarly fixed to the vertical stile 13 with screws (not shown).
A hook 16 is fixed non-rotatably to the cover 14 on the same side as the locking lever 8, and a handle 18 is fixed in a horizontal position to the other cover 15, and the proximal end 17 of the hook 16 and the base of the handle are fixed. The ends 19 are connected by a shaft 20.

In this manner, when the operating handle 10 is rotated upward from the hanging position to the horizontal position shown in the figure with the gates 1 and 2 closed, the locking lever 8, which was in the almost upright position, is rotated downward to the horizontal position. , its free end can be engaged with the hook 16 from above to lock the inner lock. Furthermore, cover 6,
By inserting a predetermined key into either one of the keyholes 21 provided in 7 and turning it in a predetermined direction, the inner lock can be fully tightened using a well-known locking mechanism. That is, when the inserted key is rotated in a predetermined direction, the lock (not shown) provided in the vertical frame 5 so as to be freely raised and lowered is moved upward by the key, and the upper end of the lock is brought into contact with the shaft 12. Since it remains fitted into the notch of the fixed disk (not shown),
Rotation of the operating handle 10 or the locking lever 8 is prevented. When the key is turned in the opposite direction, the lock lever is lowered, releasing the disc and unlocking the door. After fully tightened, the inner lock can be unlocked by rotating the operating handle 10 or the locking lever 8 in the opposite direction. The handle and the locking lever are restricted by known means to be rotatable only within a range of about 90 degrees between a horizontal state and a vertical state.

A gear 22 is fixed to the shaft 12 that connects the operating handle 10 and the locking lever 8, and as the operating handle rotates, the gear 22 rotates.
2 also rotates in the hollow part 5a of the vertical stile 5. Further, the gate 2 has a drop rod 23 extending downward from the lower end of the gate.
Alternatively, the drop bar 23 is extended upwardly within the stile 5, and is provided with a rack 24 at its upper end, with which the gear 22 is engaged. There is. 2
Reference numeral 5 designates a guide member that supports the drop bar so that it can move up and down with the rack meshing with the gear, and is fixed to the vertical stile 5 at least at two locations, upper and lower.

In this manner, when the operating handle 10 is rotated, the gear 22 rotates, so that the drop bar 23 is raised or lowered via the rack 24 that meshes with the gear 22. When the operating handle is turned in the direction to lock the inner latch, the gear 22 rotates counterclockwise in FIG. 3, and the drop bar 23 is lowered, and its lower end fits into a drop hole provided in the ground. (3rd
The figure shows this situation. ) When the operating handle is turned in the direction to unlock the inner lock, the gear 22 rotates clockwise, the drop bar 23 rises, and its lower end comes out of the drop hole.

That is, with the above-described configuration, the operation handle 10 of the inner lock can be used both when closing and opening the gate.
With just one operation, locking/unlocking of the inner lock and locking/unlocking of the drop bar are performed in conjunction. Furthermore, since the operating handle is always operated when opening and closing the gate, there is no need to forget to lock or unlock the drop bar. Therefore, the inner lock or the gate is prevented from being deformed, damaged, or caused by noise due to wind force or impact applied perpendicularly to the door surface of the gate when closed.

Further, the operating handle 10 and the drop bar 23 are held together by a gear 22 and a rack 24, which are means for converting the rotation of the operating handle into lifting and lowering of the drop bar, so that the locking lever 8 engages the hook 16 from above. Since the drop bar is linked in such a way that it descends when the drop bar rotates in the direction of rotation, in the locked state, the weight of the drop bar applies a kinetic force to the locking lever in the hook engagement direction, or the drop bar and guide member 25, the operation handle or locking lever will not rotate unless a substantially greater force is applied to the operating handle or locking lever when unlocking than when locking. Therefore, even if your body or baggage accidentally hits the operating handle or locking lever, the lock can be effectively prevented from being easily unlocked.

The gear 22 and the rack 24 are means for converting the rotation of the operating handle into raising and lowering the drop bar, but depending on the amount of rotation of the operating handle from the unlocked position to the locked position, the lower end of the drop bar moves into the drop hole. It is of course necessary that the required amount of lowering can be achieved until engagement. For the gear 22 to meet this requirement, in addition to a sector gear as in the illustrated example, a circular gear or a combination of gears can be used. The rack 24 is a U-shaped member with teeth cut on both edges, which is fitted onto the drop bar 23 and fixed with a screw 26. You can cut it. However, if a rack made of a separate member is used as in the illustrated example, processing is easy and
When the drop bar 23 is lowered to the point where the teeth near the top of the rack mesh with the gear, the rack 24
The lower end of the drop bar can be engaged with the guide member 25, and the rack 24 can also serve as a suitable stop for the drop bar. Further, as in the illustrated embodiment, when the gear 22 is rotatably provided inside the stile 5, the drop bar 23 is extended upwardly within the stile, and a rack is provided at the upper end of the extension, these Gears and racks can be easily installed, and the appearance of the gate is not affected at all.

In the above embodiment, this invention is applied to a double-swing gate, so the hook 16 is attached to the gate. However, this invention can also be applied to a single-swing gate, and in that case, the hook 16 is attached to the gate. Needless to say, it is attached to the gatepost.

As mentioned above, according to this invention, with a single operation of the operating handle, it is possible to lock the inner lock, lock the drop bar, and unlock them in conjunction with each other. In addition to making the work easier, you don't have to forget to lock or unlock the drop bar, so you can reliably protect the gate from wind pressure, impact, etc.
In addition, since the operating handle and drop bar are linked so that the drop bar is lowered by rotation of the locking lever in the hook engagement direction, the gravity or friction of the drop bar acts on the operating handle or the lock lever. Even if you accidentally touch your luggage or your body, it will not be easily unlocked.

[Brief explanation of the drawing]

Fig. 1 is a front view of the gate according to this invention, Fig. 2 is an enlarged sectional view taken along the - line in Fig. 1, Fig. 3 is a sectional view taken along the - line in Fig. 2, and Fig. 4 is a sectional view taken along the - line in Fig. 2. FIG. 4 is a sectional view taken along the line - in FIG. 3; 1, 2...Gate door, 5...Stile, 8...Latching lever, 10...Operation handle, 12...Shaft, 22...
...Gear, 23...Drop stick, 24...Ratsuk.

Claims (1)

[Claim for Utility Model Registration] A shaft passing through the gate at right angles to the gate in the width direction so as to be rotatable, and an operating handle on either the outside or the outside of the gate, and a locking lever on the other side. are fixed to each other by extending at right angles to the axis and in opposite directions, and when the operating handle is rotated, the locking lever engages from above with a hook attached to a gate or a gatepost adjacent to the gate. (a) A gear is fixed to the shaft inside the gate, and the gear is engaged with a rack provided on the upper extension of the drop bar of the drop lock attached to the gate. (b) The drop bar is lowered for locking via the gear and the rack by rotating the locking lever in the direction of engagement with the hook. Inner lock.