JP3803842B2 - Dunbar Stay - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a damper stay in which an opening / closing lid applied to a relatively large case or the like can be operated smoothly and safely.
[0002]
[Problems to be solved by the invention]
The object of the present invention is to lightly open the lid attached to the case, and to be well stabilized in the opened position. Then, when closing the lid, an appropriate force is applied to the hand so that it is pushed down to close it, and a dumbbell stay that can be handled without difficulty is provided.
[0003]
[Means for Solving the Invention]
Means of the present invention are as follows. A movable arm attached at one end to the case, one end of each of the fixed arm is attached to the lid which is pivotally mounted to be openable and closable with respect to said casing is constructed by connecting to the main body, Dunbar core fixed to the movable arm Two coil springs are wound next to each other in close contact with each other , and the two coil springs have one end bent at each end and the other end opened, respectively. The bent end of the main body is hooked to the respective locking piece of the main body to be locked, and an adjusting nut is inserted into the damper core, and an adjusting bolt is screwed into the adjusting nut to fix the adjusting nut. When a plurality of projecting pieces projecting radially from the outer peripheral inclined surface are fitted into a plurality of notches provided on the circumference of the damper core, the inner periphery of the damper core is an inclined surface. Fits and conforms to, the fitting of Dunbar core in the province of Asia strike bolt with the province of Asia strike nut, assembled movable arm having a full angle holes fitting to the polygonal portion provided on one end of the damper core, when opening the lid said two of said two coil springs when the coil spring the damping member is operated in a direction loosening relative core so as to stabilize at the position where the lid is opened while so the lid is opened gently, and closes the lid It was actuated in the tightening direction to apply a suitable force to the lid and push it down.
[0004]
DETAILED DESCRIPTION OF THE INVENTION
Reference numeral 1 in the figure is a horizontally long body, and a damper core 2 is inserted in the center thereof, coil springs 3 and 4 are wound around the body, and the bent tip 3a of the coil spring 3 is placed on the left side of the body 1. It hooks on the locking piece 6 integral with the provided thin tube portions 5, 5, and the bent tip 4 a of the coil spring 4 is hooked on the locking piece 8 integral with the thin tube portions 7, 7 provided on the right side of the main body 1. The coil springs 3 and 4 are biased in the same direction, and the other end of each is open. An thrust nut 9 is inserted into the damper core 2, and an thrust bolt 10 is screwed into the nut nut 9, and a plurality of protruding pieces 11 that protrude radially from the outer peripheral inclined surface 9 a of the thrust nut 9 are arranged in the damper core 2. Since the inner periphery 2a of the damper core 2 is an inclined surface and is fitted into a plurality of notches 12 provided on the circumference, the adjust nut 9 fits into the damper core 2.
The damper bolt 10 is fitted with the damper nut 9 together with the adjust nut 9 and has a movable arm 15 having a square hole 14 fitted into a square portion 13 provided at one end thereof. Further, the tip of the adjusting bolt 10 is fitted into a fitting hole 17 formed in the fixed arm 16, and a screw 19 inserted through a small hole 18 provided in the fixed arm 16 is screwed into the M thin tube portions 5 and 7 and fixed. , 21, the tip of the adjusting bolt 10 is brought into contact with the cover 22. Reference numeral 23 denotes a stopper which is biased and fixed to one side of the main body 1 so that the movable arm 15 protrudes horizontally in parallel with the fixed arm 16 which protrudes horizontally at all times. It fits in the part 24 and is fixed (refer FIG. 2). In the figure, 25 is a mounting bracket for the case K pivotally attached to the tip of the movable arm 15 by a pin 26, 27 is a fitting for the lid L pivotally attached to the tip of the fixed arm 16 by a pin 28, and the lid L is It is pivotally attached to the case K by a fulcrum pin P so that it can be opened and closed.
[0005]
[Action]
When the lid L is opened, the movable arm 15 and the fixed arm 16 extend to rotate the damper core 2 by the movable arm 16 and actuate the coil springs 3 and 4 in the loosening direction. Therefore, the lid L can be opened lightly, and the lid L is stable and does not shake in the open position, and the coil springs 3 and 4 are tightened around the damper core 2 when the lid L is closed from the position shown in FIG. Works.
[0006]
【The invention's effect】
When opening the lid, open it lightly and stabilize in the open position. And when closing the lid, it can be closed by applying a moderate force to the hand and pushing it down.
Therefore, there is no fear that the open lid closes suddenly and the finger is caught and damaged.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view. FIG. 2 is an assembled perspective view. FIG. 3 is a side view with a cover removed. FIG. 4 is a cross-sectional view taken along line AA in FIG. [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Main body 2 Dunbar core 2a Inner peripheral inclined surface 3 Coil spring 3a Bent tip 4 Coil spring 4a Bent tip 6 Locking piece 8 Locking piece 9 Adjust nut 9a Outer peripheral inclined surface 10 Adjust bolt 15 Movable arm 16 Fixed arm

Claims (1)

The movable arm having one end attached to the case and the fixed arm attached to the lid pivotally attached to the case so as to be openable and closable are connected to the main body.
The two coil springs around Dunbar core fixed to the movable arm adjacent to tightly wound, the two coils springs, one end of each the bent tip, is open the other end of each , The bent ends of the two coil springs are hooked and locked on the respective locking pieces of the main body,
An adjust nut is inserted into the damper core, an adjust bolt is screwed into the adjust nut, and a plurality of projecting pieces projecting radially from the outer peripheral inclined surface of the adjust nut are provided on the circumference of the damper core. When fitted in a plurality of notches, the inner periphery of the damper core is inclined, so that the nut is fitted to the damper core, the damper nut and the damper nut are fitted together with the nut, and the damper Assemble the movable arm with a square hole that fits into the square part provided at one end of the core,
Wherein when opening the lid so as to stabilize at the position where the lid is opened while the open lightly the lid actuates the two coil springs in a direction loosening relative to the damping member core, and when closing the lid Is a dumbar stay characterized in that the two coil springs are actuated in a tightening direction so as to push down the lid by applying an appropriate force.

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