JPH0723516Y2 - Flip-up gate - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention relates to a flip-up gate, and is particularly suitable for use at a doorway of a garage.

2. Description of the Related Art As shown in FIG. 6, one end of a support arm is connected to an upper side portion of a door body, and the other end of the support arm is rotatably mounted on a support post via a pivot shaft. A spring-up type gate is known in which a gas spring is applied to one end of a lever integrated with a support shaft.

However, in this type of gate door, since the support arm is orthogonal to the upper side portion of the door body, the rotation moment generated by the weight of the door body and the support arm is as shown in FIG. However, it does not change linearly in proportion to the vertical opening of the door.

As described above, since the proportional rotation moment generated in the lever integrated with the pivot by the gas spring does not match the rotation moment that changes in a quadratic curve due to the weight of the door and the support arm, the rotation generated by the gas spring When the moment exceeds the rotation moment due to the weight of the door and the supporting arm, the door jumps up more than
On the contrary, when the rotation moment of the door body and the support arm is larger than the rotation moment of the support arm by the gas spring, the door body suddenly descends, so that the opening / closing operation cannot be performed smoothly and a complicated brake mechanism is required. Met.
(See, for example, Japanese Patent Laid-Open No. 62-72879) Means for Solving the Problems As a result of intensive investigations by the present inventors in view of such circumstances, one end of the support arm is connected to the upper side portion of the door body. Then, the other end of the support arm is rotatably mounted on a support post through a pivot shaft, and one end of a lever integrated with the pivot shaft applies a biasing force of a gas spring to a support gate. An auxiliary support arm is provided below the support arm, and one end of the auxiliary support arm is vertically separated from the support arm so as to be rotatably attached to a side portion of the door body, and a little closer to the door body than the pivot shaft of the support arm. At the position of, the other end of the auxiliary support arm is slidably fixed in the longitudinal direction of the support arm, and the support frame is provided with a guide frame having a guide groove with an upward slope from the door side to the support side. And the guide pin that fixes the auxiliary support arm outward A guide in which the upper fixed shaft of the gas spring is loosely fitted in the slit groove formed along the longitudinal direction at the end of the lever so as to protrude and fit into the guide groove, and the curved guide groove is formed on the column. By providing a metal plate and projecting the fixed support shaft of the lever and the gas spring to the outside and fitting it in the curved guide groove, the rotational moment of the support arm due to the biasing force of the gas spring can be used to open and close the door vertically. By changing the curve in a quadratic curve according to the degree, the rotation moment of the door and the biasing force of the spring are matched to achieve the intended purpose.

In implementing this plan, the support shall be provided with a support having a long hole extending in the horizontal direction, and the fixed support shaft at the lower part of the gas spring should be slid within the long hole to adjust the biasing force of the gas spring. Is.

Action The flip-up type gate has a lower end of a guide groove in which the guide pin axially attached to the auxiliary strut arm slidably fitted with the support arm in the closed state has an upward slope from the door side to the strut side. , And the auxiliary support arm can be moved to a position closest to the door body to hold the door body vertically, and when the door body is rotated by applying an upward force,
The support arm rotates around the pivot of the column, and at the same time, the guide pin moves along the trajectory of the guide groove, and the auxiliary support arm slides toward the column according to the movement of the guide pin. By pulling the part toward the pillar side, the overhang of the door body against the road side is prevented and the rotation moment of the door body is reduced. Further, when the door body is rotated upward and the support arm becomes vertical, The rotation of the support arm causes the guide pin to reach the upper end of the guide groove, and the auxiliary support arm can be pushed up to the door body side to keep the door body in a horizontal state. The fixed support shaft in the upper part is loosely fitted in the slit groove formed in the longitudinal direction of the lever, and the end of the fixed support shaft is engaged with the curved guide groove of the guide plate fixed to the support, and the fixed support shaft is Slit Since it slides inside and moves along the curved guide groove, the horizontal distance between the pivot shaft and the fixed support shaft changes according to the shape of the curved guide groove, and the gas spring causes the rotation moment and the door body to move. Also, the rotation moment due to the weight of the support arm can be matched.

When the door is closed, it behaves in the reverse order of the operation when the door is opened, but in this case as well, the rotation moment due to the gas spring and the rotation moment due to the weight of the door and the support arm are Since the size is kept almost the same, the movement of the door body is extremely smooth.

EXAMPLE The flip-up type gate shown in FIGS. 1 to 5 has support arms (2) and (2) via support shafts (4) and (4) on columns (3) and (3) provided opposite to each other. Rotatably mount one end of
When connecting the upper side of the door body (1) to the other end of the support arms (2) and (2), the door body (1) and the support arm (2) are rotatably attached to the support arm (2). ), An auxiliary support arm (2 ′) is provided below the auxiliary support arm (2 ′), and one end of the auxiliary support arm (2 ′) is vertically separated from the support arm (2) and pivoted to the side of the door body (1). The support arm (2) is freely pivoted, and a slide groove (13) extending in the longitudinal direction is bored at a position slightly closer to the door than the pivot shaft (4) of the support arm (2), and at the end of the auxiliary support arm (2 '). A guide frame (2) in which a bifurcated bearing portion is formed and fitted to the support arm (2), and a guide groove (14) is formed on the inner side surface of the support pillar (3) which has an upward slope from the door body side to the support pillar side. 15) and the guide pin (16) loosely fitted in the slide groove (13) of the support arm (2) is attached to the bifurcated shaft of the auxiliary support arm (2 '). While being axially attached, the outwardly protruding portion of the guide pin is loosely fitted into the guide groove (14) of the guide frame (15) through the notch of the support pillar (3), and the support arm (2) is formed inside the support pillar (3). Integrated lever (5)
(5) is attached, a slit groove (8) is formed in the longitudinal direction at the tip of the lever (5), and the upper fixed support shaft (7) of the gas spring (6) is inserted into the slit groove (8). The upper fixed spindle (7) of the gas spring (6) is fitted into the curved guide grooves (10) (10) of the U-shaped guide plate (9) that is loosely fitted and fixed inside the support (3). The curved guide grooves (10) (10) are bent inward from the upper side to the lower side.

The lower fixed support shaft (7 ') of the gas spring (6) is fitted with a support (12) having elongated holes (11) extending horizontally on both sides of the support column (3), and the fixed support shaft (7') is attached. ) Is fitted into the long hole (11) through the notch of the column, and the position is adjusted by sliding inside the long hole, and the urging force applied to the door body is adjusted, and then screwed.

Effect of the Invention According to the present invention, it is possible to prevent or significantly reduce the protrusion of the door body to the road side when the door body is opened and closed up and down, and at that time, the opening and closing operation of the door body can be performed extremely smoothly. The practical effect is enormous.

[Brief description of drawings]

FIG. 1 is a side view showing an example of the flip-up type gate of the present invention, and FIG.
The figure is a partially cutaway side view in which the same is also enlarged, FIG. 3 is a partially cutaway horizontal sectional view in which the same is also enlarged, and FIG. 4 is a sectional view taken along the line AA of FIG. The figure is a sectional view taken along line BB of FIG.
FIG. 6 is a side view of an existing flip-up type gate, and FIG. 7 is a diagram showing the relationship between the opening of the door body and the rotation moment generated in the door body, in which (1) is the door body and (2) ) Is a support arm, (2 ') is an auxiliary support arm, (3) is a column, (4)
Is a pivot, (5) is a lever, (6) is a gas spring,
(7) is an upper fixed support shaft, (7 ') is a lower fixed support shaft,
(8) is a slit groove, (9) is a guide plate, (10) is a curved guide groove, (11) is a long hole, (12) is a receiver, (14) is a guide groove, and (15) is a guide frame. , (16) represent guide pins.

Claims (2)

[Scope of utility model registration request] 1. A lever in which one end of a support arm is connected to an upper side portion of a door body, and the other end of the support arm is rotatably mounted on a column via a pivot shaft so as to be integrated with the pivot shaft. In a flip-up type gate in which a gas spring biasing force is applied to one end of the door, an auxiliary support arm is provided below the support arm, and one end of the auxiliary support arm is vertically separated from the support arm to a side portion of the door body. It is rotatably attached to the shaft, and the other end of the auxiliary support arm is slidably fixed in the longitudinal direction of the support arm at a position slightly closer to the door than the pivot axis of the support arm. A guide frame having a guide groove with an upward slope is provided along with, and a guide pin for fixing the support arm and the auxiliary support arm is projected outward and fitted into the guide groove,
Fixing the lever and the gas spring by loosely fitting the upper fixed shaft of the gas spring into the slit groove formed along the longitudinal direction at the end of the lever and providing the guide plate with the curved guide groove on the column. A flip-up type gate characterized in that a support shaft is projected outward and fitted in the curved guide groove. 2. The support according to claim 1, wherein the support is provided with a receiving member having an elongated hole extending in the lateral direction, and the lower fixed support shaft of the gas spring is fitted in the elongated hole so as to be positionally adjustable. A flip-up gate.