JP3291648B2 - Flip-up gate - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a flip-up type gate installed at an entrance of a garage or the like.

[0002]

2. Description of the Related Art Applicants have previously disclosed a flip-up gate installed at an entrance of a garage or the like, a driving arm having bases mounted on a pair of left and right columns so as to be vertically rotatable. Accordingly, the upper end portion of the link piece that is driven via the guide means that continuously moves between a first area in which the distance from the rotation center point of the driving arm gradually increases and a second area in which the distance relatively gradually decreases. A supporting arm parallel to the driving arm pivotally attached to the lower end, a door body attached to the distal ends of the driving arm and the supporting arm, and the door body is positioned at a vertical closed state from a vertical surface of the door body. A gate that can be vertically rotated between a vertically closed state and a horizontally opened state so as not to protrude has been proposed (Japanese Patent Application No. 9-122564).

[0003]

In the above-mentioned flip-up type gate, a balance mechanism having a coil spring that balances the weight of the door body including the driving arm and the support arm is provided in the column. However, the spring reaction force of the balance mechanism is set based on the vertical closing state and the horizontal opening state of the door body according to the magnitude of the rotational torque, and particularly, the door body is changed from the vertical closing state to the horizontal opening state. When the guide means moves upward from the first area to the second area, the door is not smoothly and lightly rotated due to a lack of spring reaction force of the balance mechanism. was there.

[0004]

SUMMARY OF THE INVENTION Accordingly, the present invention is directed to an object of the present invention, wherein an angle between a door and a driving arm is symmetrically varied in a process of moving the door between a vertically closed state and a horizontally opened state. Utilizing the above, the above-mentioned disadvantage is solved by supplementing the above-mentioned shortage of the spring reaction force by the auxiliary spring mechanism, and the gist thereof is that the base portion is vertically rotatable on a pair of left and right columns, respectively. Between the attached driving arm, a first region in which the upper end gradually increases in distance with the rotation center point of the driving arm with the rotation of the driving arm, and a second region in which the distance relatively gradually decreases. A door that is rotatably connected to a lower end of a link piece that is driven via a continuously moving guide means and that is parallel to the driving arm, and a door body is attached to a distal end of the driving arm and the supporting arm; Body in its vertical closed position A gate that is vertically rotatable between a vertically closed state and a horizontally opened state so as not to protrude from the vertical surface of the door body. It is characterized in that the support arm and the door are mounted at or near the mounting position.

In the above, specifically, the auxiliary spring mechanism includes a long sleeve having a mounting piece at one end, a compression coil spring housed in the sleeve, and a mounting piece at one end. And a sliding rod slidably fitted to the other end of the sleeve.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described below in detail with reference to the drawings. 1 is an overall side view of the gate, and FIG. 2 is an enlarged side view of a main part. The door 1 has a driving arm 3 extending in parallel to a pair of right and left columns 2 and extending in parallel. It is rotatably attached to the tip of the arm 4.

A wide base 5 is provided at one end of the driving arm 3, and the base 5 is rotatably connected to the support column 2 via a rotation shaft 6. Is connected to a balance mechanism that balances the weight of the door body 1 including the driving arm 3 and the support arm 4, and this balance mechanism is not shown in the drawings but is, for example, Utility Model Registration No. 2551558.
It is mounted in a column as is known in the publication.
In this balance mechanism, the spring reaction force is greatest in the vertically closed state of the door body, and the spring reaction force is not least minimized when the rotating shaft 6 rotates from this state and the door body reaches the horizontal open state. It is configured in.

A bent portion of a link piece 7 composed of a vertical piece 7a and a bent piece 7b extending upward from the vertical piece 7a is rotatably attached to the base 5 by a shaft 8. The base end of the support arm 4 is rotatably mounted on a shaft 9.

The guide means 10 for following the link piece 7 with the rotation of the driving arm 3 is provided on a bracket 11 provided on the side surface of the upper end of the column 2.

That is, the guide means 10 moves in a direction in which the distance gradually increases from the position P _{1 at} the shortest distance L _{1 to} the rotation center point O of the base 5, and moves at the longest distance L _2.
The first region A ₁ extending that, the longest distance L is continuously thereto
A U-shaped guide groove 12 consisting of the second region A ₂ Metropolitan distance from ₂ reaches the shortest the distance L ₁ is equal distance position P ₂ of gradually decreases, to the tip of the bent piece 7b of the link piece 7 And a sliding piece 13 which is provided and slides along the guide groove 12.

As shown in FIG. 3, the auxiliary spring mechanism 20 attached between the door 1 and the driving arm 3 has a long sleeve having an end piece 22 provided with an attachment piece 21 at one end. Slide rod 2 having an attachment piece 24 at the outer end at the other end of the slide rod 2
5 is slidably fitted, a guide pin 27 fixed to a sleeve 23 is engaged with a slit 26 provided along the longitudinal direction of the sliding rod 25, and the end piece 22 is A compression coil spring 28 is interposed between the sliding part 25 and the sliding part 25 in a loaded state.

The auxiliary spring mechanism 20 constructed as described above
The substrate 1 on which one mounting piece 21 is provided on the inner surface of the door body 1 and the leading ends of the driving arm 3 and the supporting arm 4 are mounted.
3 is rotatably mounted near the mounting position of the support arm 4 and the door 1 by a shaft 14 and the other mounting piece 24 is rotatably mounted on a protruding piece 15 provided on the lower surface of the driving arm 3 by a shaft 16. Therefore, the spring force of the compression coil spring 28 acts between the door 1 and the driving arm 3 as a repulsive force.

In the vertically closed state of the door 1 shown in FIG. 4, the angle between the door 1 and the driving arm 3 is 90 degrees.
When the door 1 is turned in the horizontal opening direction from this state, the shaft 8 is turned around the turning shaft 6 in the clockwise direction in FIG. There moves along the first region a ₁ of the guide groove 12.

With this movement, the door 1 rotates upward while changing its inclination, and the angle between the door 1 and the driving arm 3 gradually decreases, whereby the compression coil spring 28 is compressed and the spring force is reduced. the increase, when the sliding piece 13 has reached the farthest distance L ₂ from the rotational center O of the driving arms, the door 1 and the main driving arm 3 as shown in Figure 5
Is the smallest (in this example, 65.5 ° is shown), and the spring force is the largest.

[0015] Then, further to rotate the door body 1 from this state, and moves sliding piece 13 along the second region A ₂ beyond the apex position of the guide groove 12, the door is now along with the movement The angle formed by the body 1 and the driving arm 3 gradually increases, and the spring force of the compression coil spring 28 is gradually released, so that when the door 1 is in the horizontal open state as shown in FIG. Is restored to approximately 90 ° (in this example, the door body 1 is inclined upward by 5 ° from the horizontal plane, and therefore, the angle formed between the door body 1 and the driving arm 3). Becomes 95 °), and the auxiliary spring mechanism 20 returns to the initial spring force.

[0016] Specifically, in the first region A ₁ in which the door 1 is upwardly rotated from a vertical closed state, the angle between the door 1 and the main driving arm 3 is changed to a direction gradually decreases from 90 °, then the second region symmetrically changed in a direction of increasing in the course of transition to a _2, between a vertical closed state as the door 1 does not protrude from the vertical surface of the door body in its vertical closed position by the action of the horizontal Hiraki披state Is rotated.

With the change in the angle between the door 1 and the driving arm 3, the biasing force of the auxiliary spring mechanism 20 gradually increases from the initial spring force, and then gradually decreases to restore the initial spring. .

In this manner, the auxiliary spring mechanism 20 having one end near the position where the door 1 and the support arm 4 are attached and the other end attached to the driving arm 3 can be used to close the door 1 vertically as shown in FIG. From the state to the opening / closing intermediate state shown in FIG. 5, the compression coil spring 28 is gradually compressed, and the spring force increases to urge the driving arm 3 with upward turning power. Next, while the door body 1 shifts to the horizontal unfolding state, the most increased spring force is gradually released while the driving arm 3 is moved.
This action works equally in the process of shifting the door body 1 from the horizontal open state to the vertical closed state, thereby achieving a smooth opening and closing operation of the door body 1. it can.

The 90 ° angle between the door 1 and the driving arm 3 in the vertically closed state and the horizontally opened state of the door 1 is basically mainly held by the balance mechanism, but this state is further assisted. It is also maintained supplementarily by the spring mechanism 20.

In the above embodiment, one of the attachment pieces 21 of the auxiliary spring mechanism 20 may be attached to the attachment position of the door 1 and the support arm 4 in common.

In the above-described embodiment, the case where the auxiliary spring mechanism 20 is attached in an inclined manner between the door body 1 and the driving arm 3 is illustrated. FIG. Another embodiment in which the auxiliary spring mechanism 20 is provided at the tip thereof in a horizontal state with the driving arm 3 is shown, and the operation is basically the same as that of the above embodiment.

[0022]

As described above, according to the present invention, the door can be smoothly rotated between the vertically closed state and the horizontally opened state of the door, and the door can be vertically closed. Also, the horizontal opening state of the door body can be securely held, and the auxiliary spring mechanism is disposed in a hidden state between the driving arm and the support arm, so that the appearance can be obtained well. Have.

[Brief description of the drawings]

FIG. 1. Overall side view

FIG. 2 is an enlarged view of a main part.

FIG. 3 is a partially cutaway plan view of an auxiliary spring mechanism.

FIG. 4 is a side view of the door body in a vertically closed state.

FIG. 5 is a side view of an intermediate state of opening and closing the door body.

FIG. 6 is a side view of the door body in a horizontal unfolded state.

FIG. 7 is a side view showing another embodiment.

[Explanation of symbols]

DESCRIPTION OF REFERENCE NUMERALS 1 door 2 support 3 driving arm 4 support arm 5 base 7 link piece 10 guide means 12 guide groove 13 sliding piece 15 projecting piece 20 auxiliary spring mechanism 21, 24 mounting piece 23 cylindrical body 25 sliding rod 26 slit 27 guide pin 28 the compression coil spring L _{1, L 2} the distance A ₁ the first region A ₂ second region

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-10-46968 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) E06B 11/02

Claims (2)

(57) [Claims] A first arm in which a base is attached to a pair of right and left columns so as to be vertically rotatable, and a distance between an upper end portion and a rotation center point of the main arm is gradually increased with the rotation of the first arm. And a supporting arm parallel to the driving arm rotatably pivotally attached to a lower end of a driven link piece via a guiding means that continuously moves between the area and a second area in which the distance relatively gradually decreases. A door body is attached to the leading ends of the driving arm and the support arm, and the door body is vertically rotated between a vertically closed state and a horizontally opened state so that the door body does not protrude from a vertical surface of the door body in the vertically closed state. At the possible gate,
A flip-up gate wherein one end of an auxiliary spring mechanism having a compression coil spring is attached to a driving arm, and the other end is attached to or near an attachment position between a support arm and a door body. 2. An auxiliary spring mechanism comprising: a long sleeve having a mounting piece at one end; a compression coil spring housed in the sleeve; and a sliding piece at one end having a mounting piece at the other end of the sleeve. 2. A sliding rod movably fitted.
The flip-up gate described.