JP3157961B2 - Lift door - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator door used for a garage entrance, a gate and the like.

[0002]

2. Description of the Related Art Hitherto, as shown in FIG. 10, there has been provided a lift door used for a garage entrance, a gate, or the like. In this apparatus, the door 2 is moved up and down by moving up and down the door 2 disposed between the right and left columns 1. A guide rail 7 protrudes from the inner surface side of the support 1 toward the substantially entire length of the support 1 and an outer side perpendicular to the support 1, and the door moves along the guide rail 7. As shown in FIG. 10 (c), the door body 2 is held in a substantially horizontal state when ascending. Reference numeral 22 denotes a motor for moving the door body 2 up and down via endless ropes 25 such as a rope and a chain, and reference numerals 5 and 6 denote guide rollers that run along the guide rails 7.

[0003]

However, in this case, when the door 2 is raised, the guide rail 7 for holding the door 2 in a substantially horizontal state protrudes outward from the column 1. In addition, there is a problem that the protruding guide rail 7a impairs the appearance of the lift door, and a problem that when the carport is connected, the protruding guide rail 7a becomes an obstacle to make connection difficult. there were.

The present invention has been made in view of the above problems, and an object of the present invention is to keep a door in a substantially horizontal state when ascending while preventing a guide rail from protruding from a column. To provide a lift door that can be used.

[0005]

In order to achieve the above object, the present invention provides a lift door in which a door body 2 is disposed between columns 1 erected on the left and right, and a lower end of the door body 2 is raised and lowered. 3 and a connecting member 4 at a substantially middle portion in the vertical direction at both ends of the door body 2.
, And rotatable guide rollers 5 and 6 are attached to the side of the connecting member 4 and the side of the lower end of the door body 2, and the guide rollers 5 and 6 are mounted on guide rails 7 provided on the inner surfaces of the left and right columns 1.
6 is provided so as to be able to run freely, and a support arm 8 which is rotatable in a vertical direction from an upper portion of the support column 1 is protruded, and the connecting member 4 is detachably engaged with a tip of the support arm 8. The guide rail 7 is provided with an outlet 10 in which only the upper guide roller 5 protrudes from the guide rail 7 in a state where the coupling member 4 is engaged with the receiving fitting 9 when the door body 2 moves upward.

According to the second aspect of the present invention, an auxiliary shaft 11 protruding from a lower part of the guide roller 6 is engaged with an auxiliary rail 12 provided on the guide rail 7. is there.

[0007]

When the door member 2 is moved upward by the elevating means 3, the upper guide roller 5 jumps out of the guide rail 7 through the outlet 10 with the coupling member 4 engaged with the receiving metal fitting 9 and the lower guide. The door body 2 is held in a substantially horizontal state by the support arm 8 when the roller 6 moves to the upper part of the guide rail 7. Even if there is no guide rail 7 protruding outward from the support column 1, the door body 2 is substantially moved. It can be held in a horizontal state and opened. When the door body 2 is moved downward by the elevating means 3, the upper guide roller 5 enters the guide rail 7 from the outlet 10 and at the same time, the connecting member 4 is disengaged from the receiving fitting 9 and the outlet port 10 is moved to the upper guide roller. 5 and the lower guide roller 6 are housed and arranged in the guide rail 7 to be in a closed state.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, columns 1 are erected at right and left intervals, and a horizontal frame 1 is provided between upper ends of the right and left columns 1.
3 are installed. The lower part of the opening surrounded by the pair of columns 1 and the horizontal frame 13 is openable and closable by a door 2 which is movable in the vertical direction. The main body of the door body 2 is constituted by a door panel 2a that is long in the lateral direction.

Door panel 2a disposed between left and right columns 1
As shown in FIG. 6, a connecting member 4 is provided at a substantially intermediate portion in the vertical direction. This connecting member 4 is a door panel 2a.
Of the door panel 2a is protruded from both ends of the door panel 2a.
The first connecting pin 15 extends outward from the upper side of
And the first connecting pin 15 is adjacent to the first connecting pin 15.
A second connection pin 16 that is slightly longer than the connection pin 15 protrudes outward. A support shaft 17 that is longer than the first connection pin 15 projects outward from a lower portion of the outer surface of the connection plate 14, and is provided at an end of the support shaft 17 on the inner surface of the column 1. A guide roller 5 disposed inside the guide rail 7 is attached.

As shown in FIG. 2, connecting plates 18 project from both lower ends of the door body 2 toward the front surface of the door body 2, and extend outward from the outer surface of the connecting plate 18. A support shaft 19 protrudes toward the support shaft 19, and a guide roller 6 is attached to a tip of the support shaft 19. An auxiliary shaft 11 protrudes from a tip of the support shaft 19, and the auxiliary shaft 11 is inserted into an auxiliary rail 12 provided on a guide rail 7, which will be described later, as shown in FIG.

A guide rail 7 attached to the inner surface of the column 1 so as to extend over substantially the entire length of the column 1 is formed in a convex cross section as shown in FIG. 9, and each of the guide rollers 5 and 6 runs over the entire length. A running groove 20 is formed. An auxiliary shaft 1 provided at the tip of a support shaft 19 to which a lower guide roller 6 is attached at the far end of the running groove 20.
An auxiliary rail 12 into which 1 is inserted is formed. At the upper part of the guide rail 7, there is provided a projecting opening 10 opening outside the guide rail 7, and the guide roller 5 above the projecting opening 10 projects out of the guide rail 7.

A rotary shaft 21 is installed horizontally in the horizontal frame 13, and one end of the rotary shaft 21 is supported by a bearing. A main motor 22 is disposed on the other end of the rotating shaft 21, and the main motor 22 is connected to the rotating shaft 2 via a speed reducer.
The main shaft 22 is connected to the other end of the motor 1 so that the rotation shaft 21 can be driven to rotate by driving the main motor 22. A torsion coil spring is mounted on the rotating shaft 21 to reduce the force required to move the door 2 up and down. Sprockets 23 are mounted near both ends of the rotating shaft 21, respectively. A pulley mounting bracket is mounted on the inner surface at the lower part of the column 1, and a pulley 2 is attached to the pulley mounting bracket.
4 is rotatably mounted. The upper end of the endless endless rope 25 serving as the elevating means 3 is hung on a sprocket 23, the lower end of the endless horizon 25 is hung on a pulley 24, and the endless horizon 25 is inserted near the guide rail 7. ing. A cable connecting portion is provided below the door panel 2a, and the endless cable 25 is connected to the cable connecting portion. The door panel 2a is driven by driving the endless cable 25.
Can be moved up and down.

A support arm 8 which is rotatable in the vertical direction is protruded from the inner surface of the upper portion of the column 1, and the connecting member 4 is detachably engaged with the tip of the support arm 8. Receiving fitting 9 is provided. The rotation of the support arm 8 to the back side of the column 1 is restricted by a rotation restricting member 27 such as a stopper pin 27a. When the support arm 8 is lowered, the receiving metal 9 is arranged on the rail of the guide rail 7. It has become so. That is, the receiving fitting 9 is disposed at a position where the connecting member 4 is engaged with the receiving fitting 9 when the door 2 moves upward.

As shown in FIGS. 4 and 5, the receiving member 9 is formed by recessing a plurality of engagement grooves having different depths in a plate member 9a. The upper guide roller 5 is used as the engagement groove. A first groove 30 to be engaged, a second groove 31 to which the support shaft 17 of the guide roller 5 is engaged, a third groove 32 to which the first connection pin 15 is engaged, and a second connection The fourth in which the pin 16 is engaged
Groove 33. Numeral 34 denotes a supporting arm 8 by a fixing tool.
Is a connection projection connected to the tip of the. As shown in FIG. 6, the first groove 30 is formed such that one side surface of the plate member 9a is concavely set, and is formed from the lower end of the plate member 9a toward the center. The second groove 31 is formed so as to penetrate the front and back of the plate material 9a, and is recessed from the lower end of the plate material 9a toward the center so as to be located at the center of the first groove 30. Third
The groove 32 is formed so that the other side surface of the plate material 9a is recessed in an alligator, and is recessed in an arc from the lower end on one end side to the lower end on the other end side. The fourth groove 33 is formed such that the third groove 32 is formed partway deep. A communication groove 35 extends between the second groove 31 and the third groove 32 over each of the grooves 31 and 32.
Is recessed.

Next, the operation of the lift door of the present invention configured as described above will be described. FIG. 1A shows a state in which the door 2 is lowered to close the lower opening. When the main motor 22 is driven to raise the lower end of the door panel 2a via the endless cable 25, the door panel 2a moves upward. This door panel 2a
The connecting member 4 moves up together with the door panel 2a by the ascending movement, and the connecting pins 15 and 1 provided on the connecting member 4
6 and the guide roller 5 and the support shaft 17 supporting the guide roller 5 are engaged with the grooves 30, 31, 32, and 33 of the receiving fitting 9, as shown in FIG. That is, first, the first connection pin 15 enters the third groove 32 from the second groove 31 via the communication groove 35, and then the guide roller 5 enters the first groove 30 and supports the guide roller 5. The supporting shaft 17 enters the second groove 31, and at the same time, the second connecting pin 16 enters the fourth groove 33. First connecting pin 15
From the portion of the second groove 31 to the second groove 31 and the third groove 32
Is engaged with the third groove 32 through a communication groove 35 provided between the first connection pin 15 and the first connection pin 15. Since the length dimension is not completely engaged with the first groove 31, the third groove 32 is engaged with the third groove 32 via the communication groove 35 without being engaged with the second groove 31. . Further, the support shaft 17 is
In engaging with the groove 31 of the guide rail 7, the receiving bracket 9 is arranged with a position shifted slightly outside the groove portion of the guide rail 7, and the support shaft 17 entering the second groove 31 is Guide portion 31 provided below the opening of groove 31
When the support shaft 17 enters the second groove 31, the door panel 2a is urged outward together with the connecting member 4 when the support shaft 17 enters the second groove 31. , And the upper part of the door panel 2a is slightly inclined outward. Therefore, when the lower part of the door panel 2a is raised by the elevating means 3, the upper part of the door panel 2a is urged to move outward, and the elevating means 3 moves the lower part of the door panel 2a upward. Fig. 7
As shown in (b), the guide roller 5 is provided with the first groove 30.
Guide roller 5 from the outlet 10 in a state where
Get out of the Subsequently, when the door panel 2a is moved upward, the connecting pins 15, 16 engaged in the third groove 32 and the fourth groove 33, respectively, as the door panel 2a falls down, as shown in FIG. As shown in FIG.
33 moves toward the far end. When the connecting pins 15 and 16 are engaged with the grooves 32 and 33, the connecting member 4 is held by the receiving fitting 9, and even if the guide roller 5 is out of the guide rail 7. The connecting member 4 is suspended and held by the support arm 8. Further, as the door panel 2a is moved upward, the lower guide roller 6 moves to the upper part of the guide rail 7 beyond the opening 10 and thereby the door panel 2a as shown in FIG. Is suspended and supported in a substantially horizontal state. Here, when the lower guide roller 6 moves to the upper part of the guide rail 7, it is conceivable that the lower guide roller 6 jumps out of the outlet 10 at the outlet 10. Since the auxiliary shaft 11 protruded from 19 is engaged with the auxiliary rail 12 provided on the guide rail 7, the guide roller 6 is prevented from jumping out of the guide rail 7 from the outlet 10. It has become.

When the main motor 22 is driven from the open state in the reverse direction to lower the door panel 2a via the endless cable 25, the door panel 2a moves downward, and FIG.
8A is moved from the state shown in FIG. 8A to the state shown in FIG. Here, the door panel 2a
As the roller descends, the guide roller 5 held by the receiving bracket 9 moves out of the outlet 10 into the guide rail 7.
When the door panel 2a further descends in the state shown in FIG. 7A, the connection pins 15, 16 and the guide roller 5 and the support shaft 17 are separated from the grooves 30, 31, 32, 33, The connecting member 4 and the receiving metal 9 are separated from each other, the guide roller 5 descends along the guide rail 7, and the lower part of the opening is closed.

[0017]

As described above, according to the present invention, the door is disposed between the columns erected on the right and left, and the lower end of the door is connected to the elevating means for vertically moving the door, so that the both ends of the door can be moved up and down. A connecting member is provided at a substantially intermediate portion of the vehicle, and a rotatable guide roller is mounted on a side of the connecting member and a side of a lower end of the door body, and the guide roller runs on a guide rail provided on the inner surface side of the left and right columns. A support arm, which is freely disposed and is rotatable in the vertical direction from the upper part of the support column, is protruded, and a receiving fitting to which the connecting member is detachably engaged is provided at a tip of the support arm. The guide rail is provided with an outlet on the guide rail where only the upper guide roller jumps out of the guide rail in a state where the connecting member is engaged with the receiving bracket during the movement, so that the connecting member engages with the receiving bracket when the door body is moved upward by the elevating means. The upper guide roller pops out The door body is held in a substantially horizontal state by the support arm by the lower guide roller jumping out of the guide rail and moving below the guide roller to the upper part of the guide rail, and even if there is no guide rail that jumps out of the support post. The door can be opened by holding the door in a substantially horizontal state, so that the appearance can be neat and the rail, which is an obstacle when connecting the car part, is not Since it is not protruded and arranged, it can be easily performed.

[Brief description of the drawings]

FIGS. 1A and 1B show an embodiment of the present invention, in which FIG. 1A is a front view, and FIG. 1B is a side view showing an operation state of a door body.

FIG. 2 is a partially broken side view showing an operation state of a door body.

FIG. 3 is a plan sectional view showing an arrangement state of a guide rail.

4A and 4B show a receiving metal fitting, wherein FIG. 4A is a front view,
(B) is a plan view.

FIG. 5 is a sectional view of the same.

FIG. 6 is a partially broken perspective view showing an upper guide roller and a receiving fitting.

FIGS. 7A to 7F are explanatory views illustrating an operation state of a connecting member engaged with a receiving fitting.

8 (a) to 8 (h) are explanatory diagrams for explaining an opening / closing operation state of a door body.

FIG. 9 is a partially broken perspective view showing an engagement state of an auxiliary shaft with an auxiliary rail.

10 (a) to 10 (c) are views showing a conventional example, and are explanatory views for explaining an opening / closing operation state of a door body. FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Support 2 Door body 3 Elevating means 4 Connecting member 5 Upper guide roller 6 Lower guide roller 7 Guide rail 8 Support arm 9 Receiving bracket 10 Projection opening 11 Auxiliary shaft 12 Auxiliary rail

──────────────────────────────────────────────────続 き Continued from the front page (72) Inventor Takahiro Nakamura 1048 Kazuma Kadoma, Kadoma, Osaka Prefecture Matsushita Electric Works, Ltd. (58) Field surveyed (Int. Cl. ⁷ , DB name) E06B 11/02 E05D 15 / 58

Claims (2)

(57) [Claims] 1. A door body is provided between columns erected on the left and right sides,
The lower end of the door body is connected to elevating means that moves up and down, and a connecting member is provided at a substantially middle portion of both ends of the door body in the vertical direction, and is rotatable to the side of the connecting member and the side of the lower end of the door body. A guide roller is mounted, and the guide roller is slidably disposed on guide rails provided on the inner surface side of the left and right columns, and a support arm that is rotatable in a vertical direction from an upper portion of the column is protrudingly provided. At the tip of the guide member, the connecting member is removably engaged, and only the upper guide roller guides the projecting opening from the guide rail when the connecting member is engaged with the receiving member when the door body moves upward. A lift door provided on a rail. 2. The lift door according to claim 1, wherein an auxiliary shaft projecting from a lower guide roller mounting portion is engaged with an auxiliary rail provided on the guide rail.