JPH0557274U - Door opener - Google Patents

Abstract

(57) [Abstract] [Objective] The present invention aims to provide a door opening / closing device capable of stopping a door attached to a panel of a device at a certain angle and opening the door more slowly. . [Structure] A shaft 15 of a door 12 is inserted into a bearing of a bearing fitting 14 fixed to a panel 11, and a base 12 of the shaft of the door 12 is inserted.
leaf spring 1 provided between the lower side of a and the upper surface of the panel 11.
In the door opening / closing device in which the door 12 is configured to be opened / closed via 3, the convex portion and the straight portion 12c are formed on a part of the outer periphery thereof.
Due to the difference in the contact portion of the base portion 12a of the shaft provided with the leaf spring with the leaf spring, when the door 12 is opened, the rotation is stopped at a certain angle, and the door 12 can be opened more slowly from the stopped state. .

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a door opening / closing device, and more particularly to a door opening / closing device for a video recorder, a player and the like.

[0002]

[Prior Art]

 In general, in this type of equipment, as shown in FIG. 6, the door 21 or 31 of the door opening / closing device 20 or 30 rotates due to the gravity of the door itself, and after opening, contacts the floor 32 or the panel 22.

As shown in FIG. 5, the door 21 is attached to the panel 22 by inserting the shaft 24 into the bearing of the bearing fitting 23 and locked by the magnet 25.

[0004]

[Problems to be solved by the device]

 However, in such a conventional configuration, the door 21 or 31 produces an abnormal noise due to the weight of the door 21 or 31 hitting the floor 32 or the panel 22, which is not preferable in terms of the quality of the product.

The present invention solves the above-mentioned conventional problems. When the door is opened, it stops at a certain angle (an angle just before hitting the floor or panel), and it can be opened more slowly to the floor or panel surface. An object is to provide a door opening / closing device.

[0006]

[Means for Solving the Problems]

 In order to achieve this object, the door opening and closing device of the present invention is such that the door shaft is inserted into the bearing of the bearing fitting fixed to the panel, and is placed between the base of the door shaft and the upper surface of the panel. In a door opening / closing device configured to open and close the door through a leaf spring provided, a convex portion is provided at a position apart from the door surface on a part of the outer periphery of the base of the shaft, and is closer to the door surface than the convex portion. A straight part is provided at each position, and due to the difference in the parts of the leaf spring, when the door is opened, the part that is always elastically contacted with the outer periphery of the base of the door shaft that rotates following opening and closing of the door at a certain angle It is equipped with.

[0007]

[Action]

 In the above configuration, when the door is opened, the plate spring comes into contact with the straight portion of the base portion of the door shaft to stop the door at that angle.

[0008]

【Example】

 Hereinafter, a door opening / closing device according to an embodiment of the present invention will be described with reference to the drawings.

In FIG. 1, the shaft 15 of the door 12 is inserted into the bearing (not shown) of the bearing fitting 14 fixed to the panel 11, and the shaft 12 of the door 12 is positioned below the base 12 a of the shaft and the panel 11. In a door opening and closing device in which the door 12 is configured to be openable and closable via a leaf spring 13 provided between the shaft 12 and a base portion 12a of a shaft provided with a convex portion 12b and a straight portion 12c on a part of its outer periphery. Due to the difference in the contact point with the leaf spring 13, when the door 12 is opened, it is possible to stop the rotation at a certain angle and to open it more slowly from the stopped state.

First, FIG. 1 shows a state in which the convex portion 12 b of the base portion 12 a of the shaft of the door 12 is closed by the force of the leaf spring 13.

FIG. 2 shows a state in which the leaf spring 13 exceeds the apex of the convex portion 12 b of the base portion 12 a of the shaft of the door 12 and tries to open the door 12 by the force of the plate spring 13.

FIG. 3 shows a state in which the leaf spring 13 is in contact with the straight portion 12c of the base portion 12a of the shaft of the door 12 and a force for stopping the door 12 is exerted.

FIG. 4 shows a state in which the leaf spring 13 has passed over the straight portion 12c of the base portion 12a of the shaft of the door 12 and the door 12 has been completely opened. At this time, since the leaf spring 13 is in contact with the base portion 12a of the shaft of the door 12, the door 12 can be slowly opened without falling due to its own weight.

[0014]

[Effect of the device]

 As will be apparent from the above description of the embodiment, according to the door opening / closing device of the present invention, the action of the convex portion and the straight portion formed on the shaft portion of the door and the leaf spring causes the door to open, the floor, the panel, and the like. It stops before it touches the door and opens slowly and completely, so that the door doesn't hit the floor or panel and makes no noise.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of essential parts showing a state in which a door of a door opening / closing device according to an embodiment of the present invention is closed.

FIG. 2 is a sectional view of an essential part showing a state in which the door is about to be opened.

FIG. 3 is a sectional view of relevant parts showing a state in which the opened door is about to be stopped.

FIG. 4 is a sectional view of relevant parts showing a state in which the door is completely opened.

FIG. 5 is a cross-sectional view of essential parts showing a closed state of a door of a conventional door opening / closing device.

FIG. 6 (a1) is a front view showing a state where the door is completely opened and is in contact with the panel (a2) is a side view thereof (b1) is a front view showing a state in which the door is completely opened and is in contact with the floor (b2) The same Side view

[Explanation of symbols]

 11 Panel 12 Door 12a Axis Base 12b Convex 12c Straight Part 13 Leaf Spring 14 Bearing Metal 15 Axis

Claims (1)

[Scope of utility model registration request] 1. A door shaft is inserted into a bearing of a bearing fitting fixed to a panel, and a leaf spring is provided between a lower portion of a base of the door shaft and an upper surface of the panel, and In a door opening and closing device configured to open and close the door, a convex portion is provided on a part of the outer periphery of the base portion of the shaft at a position distant from the door surface, and a straight portion is provided at a position closer to the door surface than the convex portion, respectively. A door opening and closing device with a leaf spring that has a part that is always in elastic contact with the outer periphery of the base of the door shaft that rotates in response to opening and closing of the door.