JPH0428385Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a locking mechanism for a rotary lock for a door or the like of a safe.

[Prior art]

In the case of conventional safe doors, doors of archives, vaults, etc., most of the lizards appear and appear only by stroke motion on the side of the door. A tightening mechanism is provided separately.

[Problem that the invention attempts to solve]

Therefore, in conventional doors of this type, a locking mechanism and a tightening mechanism must be provided separately.
Further, operations must be performed for each mechanism.

For this reason, the structure is complicated, which not only requires time and effort to manufacture and assemble, but also has the disadvantage that it is also cumbersome to operate.

[Means for solving problems]

In view of the above-mentioned conventional difficulties, the present invention was made with the aim of providing a mechanism that integrates the locking mechanism and the tightening mechanism and can streamline manufacturing, assembly, and operation. The structure consists of a generally short rod-shaped cannula that is rotatably supported in a fixed position and has a fitting part formed by a notch and a tightening part formed by a groove or protrusion for the cannula holder, and a rotational movement applied to the operating handle that is a stroke movement. a transmission mechanism consisting of a rotation lever, a transmission rod, and a conversion lever for converting the stroke motion into a rotational movement about the axis of the cannula, and a transmission mechanism having a shape to receive a fitting portion formed by a notch in the cannula; It comprises a cannula holder having a receiving part and integrally formed with the receiving part and an engaging part with which the tightening part of the cannula is engaged, and the cannula and cannula holder are opposed to the door and the door holder. It is characterized by the fact that it has been installed.

[Effect]

When the direction of the fitting part matches the shape of the receiving part of the cannula receiver, the cannuki can be moved in and out of the cannuki receiver, and when this cannula is in the cannuki receiver, the cannuki can be rotated by rotating the handle. When this is done, the engaging portion of the cannula holder fits into the tightening portion of the cannula, so that the cannula fits into the cannula holder with its fitting portion and locks and tightens the cannula holder with its tightening portion.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 shows a plan cross section of an example of the mechanism of the present invention applied to a sliding door, and FIG. 2 is a perspective view of the mechanism of the present invention in FIG. 1.

In the figure, 1 is a fixed door holder in a vault or the like, 2 is a wall of the vault or the like, and 3 is a frontage to which a sliding door 4 is attached.

5 is a rotating handle provided on the outside of the door holder 1, 5a is a handle shaft, 5b is a rotating lever fixed to the tip of the shaft 5a, and the rotation of the handle 5 is controlled by the shaft 5.
This is converted into a swinging motion of the lever 5b via a. still,
In the figure, the handle 5 and the lever 5b are directly connected by the shaft 5a, but a force increasing mechanism such as a gear train may be interposed in the middle.

Reference numeral 6 denotes a first transmission lever having the tip of the lever 5b pivotally attached to its lower end side 6a, and although not shown, is supported so as to be slidable only in the vertical direction. Here, the pivot portion 6a of the first transmission rod is provided with a horizontally elongated hole in order to convert the arc motion of the tip of the lever 5b into linear motion.

In addition, 6c is a notch in which the set L of the combination lock R engages and disengages, and the lock R is engaged and unlocked by the dial D provided on the side where the handle 5 is provided, and the operation of the first transmission lever 6 is activated. It is for regulating and lifting regulations.

7 is arranged horizontally on the upper end side of the first transmission rod 6,
A conversion lever 7a whose middle portion is pivotally mounted 7a has a rear end pivoted 6b to the upper end of the transmission rod 6, and its tip is disposed parallel to the first transmission rod 6. It is pivoted 8a to the upper end of the rod 8. The length of the conversion lever 7 or its pivot position may be arbitrarily selected in accordance with the position and amount of rotation of the lever, which will be described later.

Thus, like the first transmission rod 6, the second transmission rod 8 is supported so as to be slidable only in the vertical direction. Therefore, the pivot portion 8a of the second transmission rod 8 is formed into a horizontally elongated hole.

9 is 2 arranged parallel to the conversion lever 7.
The book is generally a short rod-shaped cannula that can only be rotated by a support member 10 provided within the door holder 1.

Further, as shown in FIG. 3 A to C, the cannula 9 has a round bar shape in the rear half, but the front half, that is,
The side facing the door 4 has a cutout surface 9a having a substantially half-moon cross section formed on its outer circumferential surface.
A spiral groove 9b forming a part of the spiral on the side where a is formed
is formed with a phase shift of 90 degrees from the cutout surface 9a, and here, the surface 9a and the groove 9b form a fitting portion and a tightening portion.

Further, a rotary lever 11 is fixed to the rear end face of the cannula 9 toward the second transmission rod 8, and the tip of the rotary lever 11 is inserted into a vertically long connecting hole 8b provided in the second transmission rod 8. By being loosely fitted, the vertical movement of the transmission rod 8 in this cannula 9 is converted into rotational movement around the axis of the cannula 9 (see FIG. 4). In this embodiment, the vertical stroke of the second transmission rod 8 is configured to give the cannula 9 a rotation of 90 degrees.

12 is the side surface 4 of the door 4 corresponding to the cannula 9 above.
In this case, the cutout surface 9
When the fitting part a is vertically oriented, a receiving part and an engaging part are formed by the shape into which the cannula 9 is fitted.

(Refer to Fig. 5) When the cannula 9 is fitted into the receiving part 12 of the cannula holder 12 and is in the state shown in Fig. 5, when the cannula 9 is rotated 90 degrees clockwise, the spiral Standing wall 1 of cannula receiver 12 in groove 9b
2a is fitted into the groove 9b.
Due to the action of the screw, the door 4 will be drawn toward the front with respect to the plane of the paper in FIG.

〔effect〕

As is clear from the above explanation, in the present invention, the cannula 9 is in a fixed position and can only be rotated by operating the handle 5, while the cannula holder 12 provided on the door side moves relative to the cannula 9. After receiving the cannula 9, the cannula 9 is rotated by operating the handle to lock the cannula 9 and cannula receiver 12 so that they cannot move relative to each other, and at the same time the spiral groove 9b provided in the cannula and the vertical wall 12a of the cannula receiver 12 are locked. The screw action between the bolts tightens the cannula and the cannula holder.

Therefore, in the present invention, the opening/closing mechanism of the cannula and the tightening mechanism of the door are combined into one mechanism, so that the opening/closing of the cannula and the tightening and release of the door can be simultaneously performed by operating one handle. can be done, and
This has the effect of simplifying the mechanism.

In the above-mentioned embodiment, the transmission mechanism including the lever 9 and the handle 5 that rotates it is provided on the side of the fixed door receiver 1, and the lever receiver 12 is provided on the side of the door 4 that is opened and closed. , 12 may be provided in the opposite positional relationship.

The mechanism of the present invention can also be applied to a swinging door in which the door is supported by a hinge (see FIG. 6).

In this case, the cannula 91 has a dowel-shaped protrusion 91b provided on the front end surface of the cannula 91 eccentrically with respect to its rotation axis, and a notch 91a on the outer peripheral surface of the cannula, as a fitting part and a tightening part. On the other hand, as the cannula holder 22, the notch 91a is horizontally oriented on the rear surface 4b of the door 4, and the protrusion 91b is
A member 22 is attached which has receiving portions 22a and 22b into which these 91a and 91b are inserted when they are located below the axis of rotation on the end face of the cannula (see FIGS. 7A to 7C). Note that the same reference numerals as in FIG. 2 indicate the same members.

Since the present invention is as described above, it is extremely useful as a locking mechanism for a rotary cannula.

[Brief explanation of drawings]

Figure 1 is a plan sectional view of an example of a sliding door equipped with the mechanism of the present invention, Figure 2 is an enlarged perspective view of the mechanism of the present invention in Figure 1, and Figure 3A is a cross-sectional view of the mechanism of the invention in Figure 2. Figure 4 is an enlarged side view of the joint between the cannula and the transmission rod, Figure 5 is a side view showing the relationship between the cannula and the cannula receiver, Figure 6 is a perspective view of another example of the mechanism of the present invention, Figure 7A is a front sectional view showing the relationship between the cannula and the cannula receiver in the mechanism of Figure 6;
Figure B is a right side view, and Figure C is a right side view with the lock tightened. 1... Door holder, 2... Wall, 3... Frontage, 4...
Door, 5...handle, 6, 8...transmission rod, 7...
Conversion lever, 9... cannula, 10... support member, 11... rotary lever, 12... cannula holder.

Claims (1)

[Scope of utility model registration request] A cannula which is generally in the shape of a short bar and has a fitting part formed by a notch and a tightening part formed by a groove or protrusion for the cannula holder and is rotatably supported in a fixed position, and which converts rotational motion applied to an operating handle into a stroke motion, It has a transmission mechanism consisting of a rotation lever, a transmission rod, and a conversion lever for transmitting the stroke motion to the cannula as a rotational movement about the axis of the cannula, and a receiving part shaped to receive the fitting part formed by the notch of the cannula. and a cannula holder integrally formed with the receiving part, and forming an engaging part with which the tightening part of the cannula engages, and the cannula and cannula holder are mounted opposite to each other on the door and the door holder. Features a rotating lock mechanism.