JPH0544461Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a lid opening/closing device for an accessory box formed in a vehicle instrument panel or the like.

(Prior Art) As shown in FIGS. 3 and 4, a conventional accessory box 2 is formed on an instrument panel 1 of a vehicle, and a lid 3 is pivotally attached to a shaft 4 at the upper rear end of the accessory box 2. , a protrusion 3a protruding from one side of the lid 3
is arranged so as to be able to rotate along the surface of the left side wall 2a of the accessory case box 2, one end of the helical spring 5 is fixed to a pin 6 protruding from the side wall 2a, and the other end is fixed to the protruding piece 3a. A lid opening/closing device for a storage box for a vehicle is well known.

(Problem to be solved by the invention) In the above conventional device, while the lid is rotating, the pressing force of the helical spring applied to the lid is reversed, and the spring force causes the lid to snap into the closed or open position. Since the lid is pressed down, there is a problem in that the closing sound generated when closing the lid is harsh on the ears. Therefore, for example, the shaft that rotates in conjunction with the opening and closing of the lid is
It has been considered to provide a damper as shown in Japanese Patent No. 56002, but there was a problem in that the damper was applied not only when the lid was closed but also when the lid was opened, making it difficult to open the lid.

The present invention was developed by focusing on these problems, and uses a helical spring to reverse the pressing force of the spring while the lid is rotating, acting in the opening or closing direction of the lid. It is an object of the present invention to solve the above-mentioned problems by performing a braking action only when the lid is closed, in a lid opening/closing device that holds the lid in an open/closed position.

(Means for Solving the Problems) In order to solve the above problems, the present invention aims at reversing the pressing force of the spring installed on the lid during the rotation of the lid which is pivotally connected to the lid so that it can be opened and closed. In the lid opening/closing device for a vehicle storage box that presses and holds the lid in the open/closed position, a fan-shaped gear that rotates as the lid opens and closes is provided on the rotating shaft of the lid, and the fan-shaped gear and the rack are connected to a pinion. This is characterized in that the rack is connected to a piston cylinder type damper which acts as a damper only when the piston moves in the lid closing direction.

Hereinafter, a detailed description will be given based on examples. 1
0 is an accessory box formed on the instrument panel of a vehicle, with a lid 1 attached to the shaft 11 at the top of the rear end.
2 is pivotally connected, and a fan-shaped gear 13 is installed below one side of the lid 12.
are fixed together, and the fan-shaped gear 13 is connected to the pinion 1.
It is linked to the rack 15 via 4. Easy 1
One end of the damper 5 is connected to a piston-cylinder type damper 16, which acts as a damper only when the piston moves in one direction. This piston cylinder type damper 16 is, for example,
This piston-cylinder damper has a structure in which the check valve of the piston-cylinder damper shown in Publication No. 16029 is incorporated in the opposite direction, and air from outside the cylinder is drawn into the cylinder when the piston is pulled out. Reference numeral 17 denotes a guide pin protruding from the side wall 10a of the box, and is fitted into the lateral groove 15a of the rack 15. Reference numeral 18 denotes a helical spring, one end of which is fixed to the fan-shaped gear 13, and the other end fixed to a pin 19 protruding from the box side wall 10a.

Next, the effect will be explained. When the lid 12 is rotated downward from the open state shown in FIG. 1, the fan-shaped gear 13 rotates clockwise.
The effect on the sector gear 13 is that of the sector gear 1
3 is reversed from the direction in which it is rotated counterclockwise to the direction in which it is rapidly rotated clockwise. As a result, the closing operation of the lid becomes faster, and the clockwise rotation of the fan-shaped gear 13 is facilitated by the piston 14.
5 is slid to the right. At this time, the piston-cylinder type damper is designed to act as a damper, so it slowly lowers to the lid 1 and is held in the closed lid position shown in FIG.

Next, when the lid 12, which is in the closed position shown in FIG. 2, is rotated upward, the rack 15 slides to the left. rotates upward slightly, and while the lid is rotating, the direction of action of the helical spring 18 rapidly reverses, rotating the fan-shaped gear 13 counterclockwise and holding it in the open lid position shown in Figure 1. be done.

(Effects) According to the present invention, during the rotation of the lid pivotally mounted to open and close, the pressing force of the spring installed on the lid is reversed, so that the spring presses and holds the lid in the open/closed position. In the lid opening/closing device for a storage box, a fan-shaped gear that rotates as the lid opens and closes is provided on the rotating shaft of the lid, and the fan-shaped gear and the rack are interlocked via a piston to move the rack in the direction of closing the lid. Since it is connected to a piston-cylinder type damper that acts as a damper only when the piston moves, when the lid is opened, the damper action is not performed and the lid can be opened lightly, and when the lid is closed, the damper action is performed and the helical spring action is applied. The lid can be closed without impact even if it acts in the closing direction during the rotation of the lid.

[Brief explanation of the drawing]

Figure 1 is a side view of one embodiment of the present invention when the lid is opened;
The figure is a side view when the lid is closed, FIG. 3 is an internal perspective view of a vehicle to which the present invention is applied, and FIG. 4 is a side view of a conventional device. 10... Accessory box, 11... Shaft, 12
... Lid, 13 ... Fan-shaped gear, 14 ... Piston, 15 ... Rack, 16 ... Piston cylinder type damper, 18 ... Helical spring, 19 ... Pin.

Claims (1)

[Scope of utility model registration request] During the rotation of the lid, which is pivotably mounted to be openable and closable, the pressing force of the spring installed on the lid is reversed, so that the spring acts as a lid opening/closing device for a vehicle storage box that presses and holds the lid in the open/closed position. A fan-shaped gear that rotates as the lid opens and closes is installed on the rotating shaft of the lid.
A lid opening/closing device for a vehicle storage box characterized in that the fan-shaped gear and the rack are interlocked via a pinion, and the rack is connected to a piston-cylinder type damper that acts as a damper only when the piston moves in the lid-closing direction. .