JPH0111901Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a hinge made by connecting a mounting plate fixed to a door mounting frame and a cup-shaped member fitted and fixed in a recessed part of the door so that they can be opened and closed by multiple arms. In particular, it relates to a catch mechanism for keeping the door closed.

Conventionally, in the above-mentioned hinge catch mechanism, an engaging element is provided on one side of the cup-shaped member and elastically biased inwardly by a spring, and pivoted to the tip of the mounting plate when the door is closed. It is known that a pivot portion of an arm is configured to hold the door closed by engaging with the engaging member.

However, in the catch mechanism having the above configuration, when the door is closed or opened, the engaging elements are pressed and displaced by the pivot portion against the elastic force of the spring to engage or disengage each other. Therefore, in order to engage and disengage the engaging element and the pivot joint, a force that is the sum of the force that compresses and deforms the spring and the frictional force that acts between them is required. requires a large amount of operating force, slows down the opening and closing operations, and lacks smoothness.

However, since it is necessary to apply a large catching force to ensure that the door is held closed, it is necessary to use a spring with a large spring constant.
As a result, not only is it impossible to relieve the stress of opening and closing operations, but also each member and the door mounting portion are easily damaged due to excessive force being applied to each member when the two are engaged and disengaged.

Therefore, the present invention was developed as a result of consideration in view of the above-mentioned conventional circumstances, and a new hinge catch mechanism was created.
The purpose of this is to enable the door closing catch operation to be carried out smoothly with a small force, and to obtain a large door closing catching force.

The following is a detailed description of the drawings showing the embodiments of the present invention. First, the hinge is fitted into a mounting plate 2 fixed to the inside of the door mounting frame 1 with screws or the like, and into a recess 3a of the door 3. A cup-shaped member 4, to which the door 3 is attached by screwing or the like, is attached to a first arm 5 and a second arm, which are pivotally connected by shaft pins 7, 8, 9, and 10 at their connecting ends. The arm 6 connects the cup-shaped member 4 so that it can be opened and closed.
The front end of the mounting plate 2 as well as the two arms 5 and 6 are received in the inside of the mounting plate 2, and the door is closed as shown in FIG. The door is configured so that it can be rotated and extended to open the door at a large opening angle as shown in FIG.

The catch mechanism 11 is shown in FIGS. 1 to 4.
As shown in the figure, when the door is closed, one part of the cup-shaped member 4 is placed at a position corresponding to the pivot portion 5a of the arm 5 which is pivotally attached to the upper side of the connection end 2a of the mounting plate 2 by the shaft pin 7. Engagement element 1 on the bottom of the side
2 is pivotally mounted by a shaft pin 13 so as to be rotatable in the inward and outward directions of the cup-shaped member 4, and a spring 14 elastically biases the catching force inwardly of the recessed portion 4a.
The pivot portion 5a of the arm 5 is engaged by the engaging element 12 being pressed and rotated outward against the spring force, and after engagement, the engaging element 12 is held engaged by the spring force. It is provided in

Moreover, the engaging element 12 has an engaging surface 12a formed in a portion facing into the recess 4a of the cup-shaped member 4, and the free end of the engaging surface 12a is wider than its base end. A plate-shaped actuator 15 is provided on the cup-shaped member 4 so as to be inclined toward the center of the recess 4a, and to press and support the engagement surface 12a with its tip when opening the door, as shown in FIG. As clearly shown in FIG. 2, it is pivotally connected to the arm 5 by means of a shaft pin 8 so as to be able to move together with the arm 5 at a predetermined angle.

That is, the actuator 15 has its base end pivoted together with the arm 5 in the recess 4a of the cup-shaped member 4 by a shaft pin 8, and when the door is closed, the arm moves counterclockwise as shown in FIG. 5 and the free end 15a engages the engaging surface 12a of the engaging element 12.
When the arm 5 is rotated as a result of the door opening operation, the arm 5 rotates clockwise around the shaft pin 8 as a fulcrum. In the state shown in FIG. 3, in which the pivot portion 5a is disengaged from the engaging member 12 after hitting the mating surface 12a, the engaging member 12 is in the position shown by the solid line in the figure.
Thus, when the door is closed, the engaging member 12 is held in a state where it is pressed and moved outward to the solid line position where the pivot portion 5a lightly contacts the engaging surface 12a. .

Moreover, the door closing operation is performed, and the pivot portion 5a
contacts the engagement surface 12a as shown in FIG. 3, and as the door closing operation progresses and the arm 5 is rotated, the arm 5 causes the actuator 15 to move in the opposite direction indicated by the arrow with the shaft pin 8 as a fulcrum. The pivot portion 5a is rotated clockwise and separated from the engagement surface 12a, thereby causing the pivot portion 5a to engage the engagement element 12 and at the same time the spring 14
As a result, the engaging element 12 is resiliently biased inward to the recess 4a, and is configured to be able to lock and hold the pivot portion 5a as shown in FIG.

Here, as means for cooperating the arm 5 and the actuator 15, various structures for relatively engaging them can be considered, but as illustrated in FIG. 2, the actuator 1
A simple configuration is to form a pressing tongue piece 15b on the proximal end side of the arm 5 and to press the tongue piece 15b against the shaft winding part 5' where the arm 5 is wound around the shaft pin 8. Thus, unless a large external force is applied to the actuator 15, the actuator 15 will move together with the rotation of the arm 5.

That is, when the door is closed, the actuator 15 is pressed and rotated by the arm 5, as shown in FIG. At the point when the actuator 15 is pushed and moved from the position shown by the two-dot broken line to the position shown by the solid line in FIG. It is.

When the door is opened, the pivot portion 5a of the arm 5 comes off against the catching force of the engaging element 12, but at this time, the actuating element 15 presses the engaging element 12 and holds it in the retracted state, so when the door is closed, The pivot portion 5a is pushed in with a light force.

As explained above, in the chuck mechanism according to the present invention, the mounting plate fixed to the door mounting frame and the cup-shaped member fitted and fixed in the recess of the door are connected from the upper side of the connecting end of the mounting plate. a first arm extending from the lower side of the connecting end of the cup-shaped member; and a second arm extending from the lower side of the connecting end of the mounting plate to the upper side of the connecting end of the cup-shaped member.
The first arm and the second arm are connected to each other so as to be relatively rotatable and relatively flexible. In the hinge in which the second arm is received in a cup-shaped member, an engager is disposed in the cup-shaped member at an end opposite to the connecting end thereof, and a proximal end of the engager is disposed in the cup-shaped member. A spring is pivotally attached to the inner bottom side of the mold member and is mounted across the engager and the cup-shaped member for pushing the free end of the engager toward the connecting end of the cup-shaped member. The actuator, which is disposed closer to the bottom surface of the cup-shaped member than the first arm, has its base end pivotally connected to the pivot joint of the first arm on the cup-shaped member side, and The pivot portion of the first arm on the mounting plate side and the free end of the actuator are combined to interlock with the first arm, and the pivot portion of the first arm on the mounting plate side and the free end of the actuator can freely contact the engager within the cup-shaped member. It is characterized by being compatible.

In the case of the catch mechanism of the present invention having such a configuration and characteristics, the hinge action when the door is opened forces the engagement between the connecting end of the mounting plate and the engaging element to disengage, and at the same time, the mechanism interlocks with the first arm. The actuator presses and holds the engager in the retracted position against the spring.

Therefore, in the subsequent hinge operation for closing the door, the connecting end of the mounting plate and the engaging element can be smoothly engaged with a light force, and moreover, during the engagement, the first arm As a result, the operating element is removed from the engaging element, and the spring load is entirely applied to the engaging element and acts on the first arm, so that the closed state of the door can be reliably maintained.

Therefore, when using the catch mechanism of the present invention, even if a spring with a large spring constant is used, there is no large resistance when closing the door, and the required catch function can be improved by using the spring with a large spring constant. can.

[Brief explanation of the drawing]

Fig. 1 is a vertical side view showing the hinge catch mechanism according to the present invention in the closed state, Fig. 2 is a bottom view showing the vicinity of the actuator of the hinge, and Fig. 3 shows the mechanism in the open state. FIG. 4 is a vertical side view showing the mechanism in a state immediately before the closing door catch. DESCRIPTION OF SYMBOLS 1... Door mounting frame, 2... Mounting plate, 3... Door, 3a... Door recess, 4... Cup-shaped member, 5... First arm, 6... Second arm, 11... Catch mechanism, 12... Engagement element, 1
4... Spring, 15... Actuator, 15b... Pressing tongue piece of actuator.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) The mounting plate fixed to the door mounting frame and the cup-shaped member fitted and fixed in the recess of the door are connected to each other from the upper side of the connecting end of the mounting plate. The first arm extends below the connecting end of the member, and the second arm extends from the lower side of the connecting end of the mounting plate to the upper side of the connecting end of the cup-shaped member. By the mutual bending rotation of the mounting plate and the cup-shaped member via the first arm and the second arm,
In the hinge in which the first and second arms are received in a cup-shaped member, an engager is disposed in the cup-shaped member at an end opposite to the connecting end thereof, and The proximal end is pivotally connected to the inner bottom side of the cup-shaped member, and a spring for pushing the free end of the engager into the connecting end side of the cup-shaped member is connected to the engager and the cup-shaped member. The actuator is attached over the entire length of the cup and is located closer to the bottom of the cup-shaped member than the first arm. the first arm and the pivot portion of the first arm on the mounting plate side and the free end of the actuator are engaged within the cup-shaped member. A hinge catch mechanism that is characterized by its ability to freely come into contact with the gossamer. (2) As a structure for interlocking the actuator and the first arm, a pressing tongue piece is formed on the proximal end side of the actuating element, and the pressing tongue piece is attached to the first arm on the cup-shaped member side. A hinge catch mechanism according to claim 1, which is brought into contact with the pivot portion of the arm of the utility model.