JPH0326760B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to external gates for buildings, particularly garage doors.

[Prior art] There have been a few proposals for applying torsion springs, including spiral springs, to rotating lift doors, but none of them have taken into consideration how to store the springs, and from the viewpoints of appearance, rust prevention, and danger prevention. It was not desirable. In addition, if there is a positional deviation between the operating plane of the torsion spring and the rotational plane of the door support arm, there is a disadvantage that the width of the car is limited by twice the dimension of the positional deviation when stored in the garage. It was hot.

[Problems to be Solved by the Invention] A technical problem of the present invention is to house the spring for reducing the gravity of the rotating lift door so that it is difficult to see, and to prevent the spring from rusting with a structure that makes it easy to obtain a watertight structure for the spring. Among the rotating lift doors that have a storage structure for torsion springs (including spiral springs), which is effective and takes into consideration the danger of preventing spring damage and deployment, the storage volume in the direction of the garage door has been maximized as much as possible. The purpose of the present invention is to provide a rotating lift door.

[Means for Solving the Problems] In order to solve the above problems, the present invention uses a straight line where a constant ground surface elevation intersects with a vertical plane as an axis of rotation, and two pivot supports arranged on the axis. and two support arms having one end pivoted on the two pivot points and rotatable in a plane intersecting the above-mentioned axes, and the above-mentioned two support arms between the open ends of the two support arms. Decorative boards installed in intersecting directions, two supports that support the two pivot points on the ground, and a spring that reduces the weight of the rotating part including the decorative board and the second support arm. In a rotary elevator door consisting of is disposed, a rotating body is fitted onto the pin member along the longitudinal direction of the pin member, and the rotating body has a hollow portion around the middle of the pin member, and
The hollow portion can be divided into at least two parts or recombined at a plane intersecting with the pin member, and the connection is such that the position of the hollow portion with respect to the pin member is immovable at least in the radial direction. , a torsion spring is linked between the rotating body and the support in the hollow portion to urge the rotating body to rotate about the pin member, and the rotating body is connected to the support arm. It is characterized by becoming.

[Effect] The spring biases the door in the opening direction.

Since the spring is attached to the hollow part of the rotating body, the spring can be prevented from rusting, and the risk of breakage of the spring can also be avoided.

Furthermore, the working surface thickness of the torsion spring (including the volume of the structural member) and the rotational surface of the support arm were made to be on the same plane, and each support column was arranged on the same plane as the rotational plane of the support arm. Therefore, the effective width of the garage can be widened.

[Example] An example of the rotary lift door according to the present invention will be described with reference to the drawings. As shown in Fig. 1, this rotary elevator door has a rotation axis X that is a straight line where a constant ground plane and a vertical plane intersect, and two pivot points 41 and 42 arranged on the axis X. , one end 2 is attached to the two shaft fulcrums 41 and 42.
1a, 22a are pivotally supported, and the second support arms 21, 22 are rotatable in a plane intersecting the axis X.
and the open ends 21 of the two support arms 21, 22.
A decorative panel (door) 1 installed between b and 22b in a direction intersecting with the second support arms 21 and 22, and a second support that supports the two shaft supports 41 and 42, respectively, on the ground surface S. 31, 32, and a spring that reduces the weight of the rotating portion including the door 1 and the two support arms 21, 22. Since the shaft support of the arm has the same structure at both shaft support points 41 and 42, only the shaft support point 41 will be described next. As shown in FIG. 2, the support column 31 is disposed in the same plane as the rotation plane of the support arm 21. As shown in FIG. The pivot point 41 is provided within the width of the support column 31, and each pin member 41a is disposed at the pivot point 41 along the axis X. The rotating body (one end 21a of the support arm 21) is inserted, and the rotating body has a hollow portion around the middle of the pin member 41a, and the hollow portion has three (one end 21a and the second lid 71, 7
1), and the connection is such that the hollow portion is fixed to the pin member 41a at least in the radial direction, and within the hollow portion, between the rotating body and the support column 31. A torsion spring 51 is connected to the torsion spring 51 to urge the rotating body in a direction to revolve around the pin member 41a. connected together. In addition, in the illustration, the pin member 41a is
Although it appears to be rotatable relative to 1, there is no problem even if the structure is not rotatable.

The rotating body is a cylindrical body whose openings on both sides are closed by lids 71, 71, and a pin member 41a whose both ends are supported by pillars 31 passes through and is pivotally supported by the lids 71, 71. At this time, one lid body 71 (second
The left lid (as shown) is rotatable with respect to the pin member 41a and is fixed to the cylindrical body, and the other lid 71 (second
The right side lid (as shown) is fixedly attached to the pin member 41a, and the cylindrical body is slidable around the other lid 71.

The torsion spring 51 is attached by inserting a coil portion into the pin member 41a, having one end engaged with a protrusion protruding inwardly from the rotating body 21a, and having the other end 51a penetrate through the other lid 71 and support column 31. ing.

The end of the support arm 21 is fixed to the cylindrical body of this rotary body, and the support arm 21 rotates while rotating this rotary body.

During this rotation, when the door 1 is rotated in the opening direction (upward in FIG. 1), the spring force of the torsion spring 51 acts in the same direction to reduce the weight of the door 1.

Further, in this embodiment, the hollow part is divided into three parts, but one lid body 71 is divided so that the torsion spring 51 can be attached in the hollow part, and the other lid body 71 is divided into three parts. The structure may be such that it is provided integrally with the main body and divided into two parts. In short, the hollow part in the present invention may be divided into at least two parts.

81, 81 are split pins, and support arms 21,
A stopper that limits the rotational stroke of 22 to approximately 90° is not shown for the sake of clarity. Further, the second digit 2 and 1 of the code represent the left and right sides of the support arm system.

Here, in FIG. 2, the pin member 41a and the support 3
To explain the relationship 1 in detail, the pin member 41a does not necessarily have to be a pivot support for the hole (the pivot point 41) of the support post 31 into which it is inserted, and the relationship is that it is an integral unit that cannot rotate. Good too. Therefore, in this case, the winding inner end 51 of the torsion spring 51
Even if the structure is such that a is directly moored and fixed to the pin member 41a, there is no difference in operating dynamics.

FIGS. 3 and 4 show other embodiments. In the figure, 41b is a slit for mooring a spring 51 provided in the longitudinal direction of the pin member 41a;
61 is an indirect member to be integrated with the support column 31;
1a is the mounting hole of the indirect member 61, and Y is the long axis of the pin member 41a to be assembled coaxially with the axis X.

In this embodiment, a spiral spring is used as the spring 51, and this spiral spring has an inner end 51a.
is engaged with the slit 41b, and the outer end is engaged with a protrusion formed to protrude inward of the rotating body. The pin member 41a has a non-circular cross section at the portion where the slit 41 is formed, and this portion forms an indirect member 61 having a shape corresponding to the cross-sectional shape.
The pin member 41a is inserted into the non-circular hole to prevent the pin member 41a from rotating. Therefore, by variously changing the attachment position of the indirect member 61 to the support column 31, the set angle around the pin member 41a can be changed, and thereby the spring force of the spiral spring can be adjusted. It's summery.

The rotating body of this embodiment is composed of a cylindrical body and a lid body in the same way as in the above-mentioned embodiments, and the cylindrical body is fitted on the outside of the spiral spring, and the lid body is pivoted on the circular cross section of the pin member 41a. It is rotatably mounted by being mounted.

Similar to the torsion spring 51 described above, this spiral spring acts to reduce the weight of the door when the door is opened. In addition, the rotating body and the pin member 41
It goes without saying that the combination of attachment to the door via the support column 31 and the support arm 21 in a) also allows for mutual attachment of the rotating body and the support column 31, and the pin member 41a and the support arm 21. (2 in Figure 2)
(This means that 1 and 31 can be seen as a support arm and a support arm, respectively).

[Effects of the Invention] Since the present invention has the above configuration, the spring is loaded in a state where it is visually isolated from the structure of the rotating lift door. ), the appearance is improved and compact, and dangers such as spring breakage and deployment can be avoided. In addition, since being out of sight has the effect of watertight against rainwater, it can also be said to be desirable in terms of rust prevention of the spring.

Further, according to the present invention, since the support arm and the strut are arranged in the plane of action of the spring (including the width of the structural member), the conventional drawback (the size of the structural member as seen in the axis X direction) is eliminated. The dimensions of the structural member of the present invention, when viewed in the same direction, are free from (thickness of the active surface of the spring + thickness of the support arm) x 2 or (thickness of the active surface of the spring + support arm diameter) x 2. Width, diameter of the support arm, or thickness of the active surface of the spring (even if the width of the structural member is included, it can be considered to be less than a few centimeters)
It can be said that the width of the vehicle can be increased by just twice the maximum dimension (because the left and right sides are added together).

[Brief explanation of drawings]

Fig. 1 is a perspective view of one embodiment of the rotary lift door according to the present invention when the door is closed, Fig. 2 is an exploded perspective view of the main part near the right shaft fulcrum of Fig. 1, and Fig. 3 is another embodiment. FIG. 4 is a perspective view of one embodiment near the pin member with the slit, and FIG. 4 is a side view of one embodiment near the pivot point of the support column to which the guide plate in FIG. 3 is attached. 1... Decorative board, 21, 22... Support arm, 2
1a, 22a...One end of the support arm, 21b, 2
2b...Open end, 31, 32...Strut, 41, 4
2... Axis fulcrum, 41a... Pin member, 51... Torsion spring, X... Axis.

Claims (1)

[Claims] 1. The axis of rotation is a straight line where the constant ground surface height and the vertical plane intersect, and the second axis fulcrum is arranged on the axis,
two support arms having one end pivotally supported by the two shaft fulcrums and rotatable in a plane intersecting the axis; and a support arm intersecting the two support arms between the open ends of the two support arms. A decorative board installed across the direction, two pillars that support the two pivot points on the ground, and a spring that reduces the weight of the rotating part including the decorative board and the second support arm. In the rotary elevator door, each of the two support arms is disposed on the same plane as the rotation plane of each of the two support arms, and one pin member is disposed at each of the two pivot points along the axis. and a rotating body is fitted onto the pin member along the longitudinal direction of the pin member, and the rotating body has a hollow portion around the middle of the pin member, and the hollow portion is formed into a hollow portion around the middle of the pin member. The hollow part can be divided into at least two parts or recombined at a plane intersecting with the pin member, and the connection is such that the hollow part is fixed to the pin member at least in a radial direction, and the rotation part is fixed in the hollow part to the pin member. A torsion spring is linked between the moving object and the above-mentioned support,
A rotating lift door characterized in that the rotating body is urged to rotate about the pin member, and the rotating body is connected to the support arm.