JP2871786B2 - Stopper with shock absorber - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention absorbs a collision impact on a room wall or the like at a movement end point of an arbitrary collision moving body, for example, a door opening end point,
Also, the present invention relates to a stopper with a shock absorber used when the door or the like is held on the wall side in a room when the door or the like is opened.

2. Description of the Related Art Generally, an entrance door or an indoor door used in a house has one end supported by an opening frame by a hinge and the other end provided as a free end so as to be rotatable in the left-right direction. .

Further, when the indoor door is opened, a holding device for holding the door on the wall side of the room is used to prevent the door from fluttering due to wind or the like.

As such a holding device, there is known a magnet-catch type in which a magnetic piece fixed to one surface of a door is attracted to a permanent magnet arranged on a wall side in a room.

[Problems to be Solved by the Invention] However, when opening the above-mentioned rotary door without opening the door to the end, the door collides with the wall of the room or the like at the final point of the opening rotation. Producing a collision noise,
In some cases, damage was caused by the impact.

In addition, the device may be damaged due to collision when the device is attracted to the magnet catch device.

The present invention has been made in view of such conventional circumstances,
It is an object of the present invention to provide a stopper with a shock absorber that can absorb a shock at the time of colliding with a wall or a suction holding device at a final point of an opening rotation of a door or the like and prevent generation or breakage of a loud collision sound. I do.

[Means for Solving the Problems] In order to achieve the above object, a stopper with a shock absorber according to the present invention comprises a main body case provided so as to be attachable to an appropriate immovable part, a liquid sealed inside, and a main body case. A cylinder that is assembled, a piston that reciprocates and slides in the cylinder while receiving the resistance of liquid, and a piston that is connected and fixed to an inner end portion, and has a force receiving action portion at an outer end portion, A shock absorber consisting of a piston rod which is normally urged in a direction protruding from the cylinder end, a fixed yoke fixed to a force acting portion of the piston rod via a cushion member, and a fixed yoke. A magnet member that is fixed and adsorbs and holds an arbitrary collision moving body.

[Operation] In this configuration, when the collision moving body such as the revolving door is opened, at the final point of the opening rotation, the door itself or the member to be attached attached to the door or the like is a magnet for holding the moving body. It is sucked and caught in contact with the member.

Thus, the piston connected to the magnet member via the cushion member and the piston rod slides in the cylinder while receiving the resistance of the liquid, and absorbs a collision impact of a door or the like.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

In the drawing, reference numeral 1 denotes a stopper with a shock absorber according to the present embodiment, which is composed of a main body case 2, a shock absorber 3, a cushion member 4, a magnet member 5, and the like.

The main body case 2 has a mounting portion 2a that can be fixed to any immovable portion such as a floor surface or a wall surface, and has a space 2b in which a cylinder 31 of a shock absorber 3 described later can be mounted. . 2c is a fixing bolt insertion hole of the main body case 2.

The shock absorber 3 absorbs the collision impact of the moving body by using the resistance of the liquid. The shock absorber 3 is disposed along the direction of absorbing the impact, and has a female thread 2d formed in the mounting space 2b of the main body case 2. A cylinder 31 fixed by screwing the male screw portion 31a, a piston 32 slidably disposed in the cylinder 31, a piston rod 32a having an inner end fixed to the piston 32, And a force receiving portion 32b fixed to the projecting outer end of the piston rod 32a. The inside of the cylinder 31 is hermetically filled with silicone oil or the like, and the piston 32 is provided with an orifice 32c at a predetermined position. Reference numeral 33 denotes a return spring, which is disposed, for example, between the opening edge 31b of the cylinder 31 and the force receiving portion 32b as shown in FIG. 1, and normally connects the piston rod 32a to the opening end of the cylinder 31. It is urged in the direction to protrude.

The cushion member 4 is made of, for example, a somewhat hard urethane rubber, and is attached and fixed to the force receiving portion 32b by means such as adhesion.

The magnet member 5 is held and fixed to a fixed yoke 6. Here, the fixed yoke 6 has a substantially U-shaped cross section as shown in FIG. 1, and has a male screw portion 6b protrudingly formed outside the bottom wall 6a. The male screw portion 6b is screwed and fixed to a female screw portion 7d formed on the inner peripheral surface of the front end of the movable case 7 described later, and is disposed in contact with the cushion member 4 urged by the return spring 33.

As shown in FIGS. 1 and 2, the movable case 7 is a substantially cylindrical tube having a notch 7a, and slides the above-described force receiving portion 32b and the cushion member 4 into the hollow portion 7b. A flange portion 7c formed at the rear end portion is provided so as to be freely housed and held, and to be engaged with a step portion 2e formed in the main body case 2. And it is movable along the outer wall of the main body case 2. A male screw portion 7d to which the male screw portion 6b of the fixed yoke 6 can be screwed is formed on the inner peripheral surface of the front end portion. The notch 7a is provided to prevent the movable case 7 from contacting an arbitrary position of the main body case 2 and hindering the movement when the movable case 7 moves.

Here, the above-mentioned magnet member 5 may be provided with a permanent magnet as shown in FIG. 1, or may be provided with an electromagnet 5 'as shown in FIG. When the electromagnet 5 'is provided, a fixed yoke 6 having an iron core 6c protrudingly formed substantially at the center of the bottom wall is used.

On the other hand, it is needless to say that the collision moving body such as the revolving door can be used as it is as long as it is made of a magnetic material that can be attracted and held by the magnet member 5 described above. In this case, it is preferable to attach the to-be-adsorbed member 10 as shown in FIG. 4 to an arbitrary position of the moving body.

The member to be sucked 10 includes a casing 11, a yoke to be sucked.
12 and a cushion member 13. The casing 11 is formed in a substantially cylindrical shape, one end 11a is fixed to the wall 20 of the moving body, and the other end 11b is an open end. The yoke to be sucked 12 is formed to have a substantially U-shaped cross section, and is disposed so as to protrude from the open end 11b of the casing 11 through a cushion member 13 between the yoke 12 and the wall 20 of the reciprocating body. The casing 11 and the to-be-sucked yoke 12 are engaged with each other by flange portions 11c and 12a formed at respective ends thereof.

Next, the operation of the stopper 1 with the shock absorber of this embodiment having the above-described configuration will be described.

This stopper 1 with a shock absorber is, for example,
As shown in FIG. 5, it is used as a stopper for an indoor door 50 or the like in a house.

Here, the door 50 has a rotating base supported by a hinge 51, and the other end is a free end, and is provided so as to be capable of rotating and opening and closing. 52 is a knob provided at an appropriate position near the free end of the door 50.

On the other hand, the stopper 1 with the shock absorber is attached and fixed to the floor near the opening end point of the door 50. The member to be sucked 10 is connected to the stopper 1 of the door 50.
Is installed at the position corresponding to.

When the door 50 is opened, the suction yoke 12 of the suction member 10 fixed to the door 50 is moved near the final point of the opening rotation of the magnet member 5 of the stopper 1.
Contact is caught. Thereby, the magnet member 5
Is pressed toward the shock absorber 3, but first the shock is buffered by the cushion member 4.

Next, the force receiving portion 32b of the shock absorber 3 receives this impact and presses the piston rod 32a and the piston 32 against the elastic force of the return spring 33. At the same time, in the cylinder 31, the operating resistance received when the oil passes through the orifice 32c of the piston 32 at high speed,
The viscous drag acts to absorb the kinetic energy of the door 50. At the same time, the impact sound is also absorbed and absorbed. At this time, the movable case 7 moves along the outer wall of the main body case 2 together with the magnet member 5 and the like. However, since the movable case 7 collides with the main body case 2 and is prevented from moving, the notch 7a is provided. However, the movement does not stop halfway.

The stopper 1 with a shock absorber of the present invention is not limited to the above-described embodiment. For example, if the cushion member 4 and the magnet member 5 are fixedly connected to the force receiving portion 32b of the shock absorber 3, the movable case 7 does not necessarily have to be provided.

[Effect of the Invention] According to the stopper with a shock absorber of the present invention,
With a simple structure, it can effectively absorb the impact at the final point of opening of any collision moving body such as a door, and when opening a door, etc., even if you do not touch until the end, the wall etc. at the final point of opening rotation There is no collision or damage due to collision with the vehicle.

In particular, in the present invention, since shock is absorbed by a two-stage buffering action between the cushion member and the shock absorber,
The effect is great.

[Brief description of the drawings]

1 is a longitudinal sectional view showing one embodiment of a stopper with a shock absorber of the present invention, FIG. 2 is a sectional view taken along the line AA of FIG. 1, FIG. 3 is a sectional view showing another example of a magnet member, FIG. 4 is a sectional view showing a member to be attracted, and FIG. 5 is a perspective view showing an example in which the stopper with a shock absorber of the embodiment is applied to an indoor door in a house. 1 ... stopper with shock absorber 2 ... body case 3 ... shock absorber 31 ... cylinder 32 ... piston 4 ... cushion member 5,5 '... magnet member 6 ... fixed yoke 7 ... movable case 10 ... … Adsorbed member

Claims (3)

(57) [Claims] 1. A main body case provided so as to be attached to an appropriate immovable portion, a cylinder filled with a liquid therein and assembled to the main body case, and a reciprocating slide in the cylinder while receiving the resistance of the liquid. A moving piston, and the piston is connected and fixed to the inner end, while the outer end has a force acting portion,
A shock absorber consisting of a piston rod normally urged in a direction protruding from the cylinder end, a fixed yoke fixed to a force acting portion of the piston rod via a cushion member, and a fixed yoke. And a magnet member for holding a given collision moving object by suction, the stopper being provided with a shock absorber. 2. The stopper with a shock absorber according to claim 1, wherein said magnet member is a permanent magnet. 3. The stopper with a shock absorber according to claim 1, wherein said magnet member is an electromagnet.