JP2005307709A - Swing sensing type opening prevention mechanism - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device capable of preventing its operation for small vibration, reacting to large swing in any direction securely to lock it, and returning simply. <P>SOLUTION: A part moving by following a ball moving by swing, a part which is on an outer side of the ball and transmits movement of the ball, a part which becomes a fulcrum, and a stopper part hold a latch, and the fulcrum acts when the ball receives force for moving it in X direction, Y direction, and their composite direction by reciprocating movement due to swing of earthquake to remove a stopper. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention is an apparatus that prevents a door or the like from being opened by feeling a shake to prevent a stored item from popping out due to an earthquake or the like being shaken.

There are some methods for automatically locking against large shaking such as earthquakes, etc., but depending on the timing, the direction of shaking is limited or the shaking is uncertain. There was a thing lacking certainty such as not being applied. Also, because the mechanism is complex, it is difficult to adjust springs and weights, and there are many parts, so it is large and takes up a lot of space even if it is mounted on a shelf or cabinet.

Problems to be solved by the invention

Small vibrations do not operate and large shakes react and lock in any direction. Also, provide a device that can be easily restored.

Means for solving the problem

In order to explain typical movements, it will be described with reference to the drawings. When the arrangement shown in FIG. 1 is taken, a part that moves following a ball that moves by shaking (A in FIG. 1), or (A perspective view of FIG. 2) (hereinafter, this part is referred to as a part A). This part A is a part that is outside the ball and transmits the movement of the ball (FIG. 2 (1)) and a fulcrum. It has a portion (Fig. 2 (2)) and a stopper portion (Fig. 2 (3)), and the stopper portion holds the latch as shown in (3) (3). When the ball is subjected to a reciprocating motion caused by an earthquake shake (Fig. 4) and receives a force that is moved in the X direction, Y direction, or their combined direction, the fulcrum acts to rotate and advance as indicated by arrow a The movement in the direction of the arrow c is obtained via the fulcrum pin b and the stopper is removed. When the ball receives a force in the linear direction connecting the ball and the fulcrum as indicated by the arrow d, the elongated hole e provided in the fulcrum portion (the width is slightly wider than the diameter of the fulcrum pin b). As a result, the stopper portion can move in the direction f and the stopper is removed.
Even if it is difficult to obtain a rotational motion, the stopper can be removed by the synergistic effect of the two functions, and it can be reliably applied to the 360-degree swing in any direction.
In order to determine the operating range depending on the magnitude of the swing (Fig. 3), a funnel-shaped dent is provided under the ball to restrict the movement of the ball so that the stopper can be removed for small vibrations. If the acceleration is higher than a certain value, but the ball can move a long distance, the stopper will come off and a latch will be applied. Also, since this recess is wider than the range in which the ball can move (FIG. 1), the part A in the original position is guided by the support of the fulcrum b (FIG. 4) by the movement of the ball back to the center of the recess. Since it can return automatically, simple work is required when returning the latch.

The invention's effect

As described above, it is a clear and reliable method that can operate in any direction, and it has a high level of application, so it is safe to use in many ways.

As the best mode for carrying out the present invention, the arrangement as shown in (Fig. 1) is adopted, so that the reciprocating motion caused by the shaking of the earthquake is in the X direction, Y direction or their combined direction (Fig. 4). Upon receiving the force to be moved, the fulcrum is acted to rotate and advance as indicated by the arrow a, and the movement in the direction of the arrow c is obtained via the fulcrum pin b to release the stopper. When the ball receives a force in the linear direction connecting the ball and the fulcrum as indicated by the arrow d, the elongated hole e provided in the fulcrum portion (the width is slightly wider than the diameter of the fulcrum pin b). As a result, the stopper portion can move in the direction f and the stopper is removed.

As an example of the present invention, the structure as shown in FIG. 1 will be described. To remove the latch stopper, the stopper moves in the directions of f and c in FIG. Since the latch is released by moving outside the h portion, that is, the lateral regulation width of the latch, the movement of the ball and the part A only needs to move in the directions of arrows a and d in FIG. I and j are provided as frames in order to restrict movement. The linear restriction frame of the portion i is an arrow so that the stopper portion of the part A does not move in the direction opposite to c when receiving a force in the Y direction (FIG. 4) or a direction close thereto, and can move in the arrow d direction. A restriction frame was provided substantially parallel to the direction d and slightly outside the outer frame of the part A. Since the restriction frame of the j portion is provided so as to restrict the ball from moving outside the g of the hollow portion (FIG. 3) under the ball, the ball returns to the center of the dent when there is no shaking. It moves in the direction to move back to the positional relationship as shown in FIG. If a part that determines the limit of the movement of the latch is provided at a place such as k in the operation of the latch (Fig. 3) and the latch upper part l prevents the stopper from moving back when the latch is activated, When the latch is raised so that the latch is in its original state and the gap for the stopper is opened, it automatically enters under the latch. Although the mechanism arranged in the horizontal direction as described above (FIG. 1) has been described, a structure arranged in the vertical direction as shown in FIG. 5 can be used. In other words, the movement of the ball is transmitted to the vertical axis, and the vertical axis is provided with a fulcrum such as m in the middle, and the tip of the vertical axis is connected to the part supporting the latch. The same reasoning effect as the previous explanation is obtained by the movement of the ball, and the latch is released by the movement of the stopper portion. In other words, the part that supports the latch has a fulcrum part that makes the linear movement due to the shaking of one end a rotational movement, and when it is a movement that cannot be changed to a rotational movement or is difficult to change, a part that can move linearly in that direction Since it can be operated by applying a force caused by shaking such as an earthquake in the direction in which the stopper is released, the angle and material of the parts that support the latch and the combination position of each part can be changed, so the device has many shapes. You can make big things. In the explanation, it is written as a ball, but it is possible to use a structure like a pendulum instead of a ball as long as it can move with the acceleration of an earthquake (Fig. 6). The depression below the ball may be tapered or bowl-shaped, or it may be a hole, and the depth of the hole can be adjusted as shown in (Fig. 7), so that the magnitude of the sway that is detected Can be changed. The same effect can be obtained even if the fulcrum part is provided with a constriction or a convex part on the outer side without setting a pin in the fulcrum part of the stopper part. The latch may have a structure in which it does not move around the fulcrum but drops or rises up. Further, a spring or the like that exerts a downward force on the latch may be incorporated in order to prevent the latch from jumping upward. Although expressed as a latch, it may not be a metal, and may be a rod-shaped object instead of a hook-shaped object. Since it has these structural features, it can be used not only for preventing the opening of the opening door but also for sliding doors and drawers. In addition, if the hinge attached to the door is provided with a portion that overlaps when the door is closed or close to it, a hole or the like is made in that portion, and a latch is passed therethrough, so that the door cannot be opened and used to prevent scattering of stored items. Attaching this device to a fixed wall or pillar such as a movable wagon in a store, etc., and stopping movement due to shaking such as an earthquake can secure an evacuation route, preventing falling of showcases and fences Can also be used.

According to the swing detection type opening prevention mechanism of the present invention, the door is prevented from being opened and stored by receiving the force moved in the X direction, the Y direction, or a composite direction thereof by the reciprocating motion due to the shaking of the earthquake and removing the stopper. It can prevent scattering of objects, and it can secure an evacuation route because it can be stopped by shaking such as earthquake by attaching this device to fixed places such as walls and pillars in movable wagons such as stores etc. . Furthermore, it is possible to provide a swing detection type opening prevention mechanism that is simple in structure, has few components, and is low in manufacturing cost.

It is the top view which showed the shake detection type | mold opening prevention mechanism. FIG. 6 is a perspective view showing a part A. It is the mounting diagram which showed the shake detection type | mold opening prevention mechanism. It is sectional drawing which showed operation | movement description of the shake detection type | mold opening prevention mechanism. It is sectional drawing which showed the structure arrange | positioned in the vertical direction. It is sectional drawing which showed the case of the pendulum structure. It is sectional drawing which showed that the magnitude | size of the shake to sense can be changed.

Explanation of symbols

A Parts that move following the movement of the ball (1) A part that surrounds the outside of the ball of the part A and transmits the movement of the ball (2) A fulcrum part of the part A (3) A stopper part that holds the latch of the part A Arrow d indicating the direction when the fulcrum part is moving and rotating The fulcrum pin c The arrow d indicating the direction of movement of the stopper part (3) by the movement of the arrow a In the straight line connecting the ball and the fulcrum , Arrow indicating the moving direction of the ball e moving direction of the stopper portion when moving in the direction of the long hole fd provided in the fulcrum portion h indicating the portion recessed in a funnel shape h lateral regulation width of the latch i Movement range restriction frame j Movement range restriction frame k Latch receiving part l L indicating the upper part of the latch m Support point part n Slot part

Claims (2)

The movement of the ball is changed to a rotational movement via a fulcrum provided on the part having a frame that moves following the movement of the ball due to the shaking, and the movement in the direction in which the ball cannot be rotated is latched by a component having a movable structure. Mechanism to remove the stopper that supports Make a dent under the ball to determine the amount of shaking to remove the stopper and to return the stopper to its original position.

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