JP2591146Y2 - Door opening and closing device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for opening and closing a door face in a garage or the like with a roof.

[0002]

2. Description of the Related Art As a device for opening and closing a door surface in a garage with a roof or the like, those disclosed in Japanese Utility Model Publication No. 63-44555 and Japanese Utility Model Publication No. 39333/1988 are known.

A door face opening / closing device described in Japanese Utility Model Publication No. 63-44555 is provided with a support for a door face separately from a support for a roof on both left and right sides of an entrance side of a garage. A guide groove is formed in the direction, and both ends of a lateral support shaft provided at the center in the vertical direction of the door face body are slidably inserted into the guide groove. When the door face is opened and closed, the support shaft is moved up and down along the guide groove, and the door face body is rotated about the support shaft to move up and down.

A door face opening / closing device described in Japanese Utility Model Publication No. 39333/1992 is provided with a pair of left and right guide rails having a horizontal portion and a vertical portion, separately from a column supporting a roof. Are arranged on the left and right sides on the entrance side of the garage, and the door face body is moved up and down while guiding two rollers provided on both sides of the door face body along guide rails.

[0005]

In the conventional opening and closing device, when the door body is lifted up and opened, a pillar for the door body or a vertical portion of the guide rail remains on the entrance side of the garage, so that the vehicle is not used. There is a problem that they are in the way when entering and leaving the warehouse.

Accordingly, the present applicant can open and close the door face in the vertical direction without providing a support or a guide rail for supporting the door face separately from the support for the roof on both the left and right sides of the entrance. A swing type switchgear was proposed.

In this opening / closing device, a pair of left and right guide rails are disposed at the top in the front-rear direction, and upper end portions of a pair of left and right front arms are pivotally connected to the front ends of the respective guide rails by a horizontal axis. The upper ends of a pair of left and right rear arms supporting the door panel are pivotally connected to each other along the guide rail so as to be movable in the front-rear direction and rotatable around the horizontal axis, and the lower ends of the front arms are connected to the door panel. The upper surface of each rear arm is rotatably connected to a substantially central portion in the vertical direction by a horizontal axis, and the upper end side of each rear arm is moved rearward along each guide rail to hold the door face body at the raised position. It is provided with holding means.

However, in this opening and closing device, it is necessary to arrange a pair of left and right guide rails in the upper part in the front-rear direction, and furthermore, in the storage state in which the door body is raised to the upper limit position and stored, the entire device is longer in the front-rear direction. The drawback is that it requires a large storage space under the roof because of its length.

In view of such problems, the present invention provides a support for supporting a door face body separately from a support for supporting a roof or the like.
Provided is a door face opening / closing device that can open and close a door face body vertically without providing a guide rail, and furthermore, when the door face body is raised to open an entrance, an arm and a door face body can be folded upward to be stored compactly. The purpose is to:

[0010]

According to the first aspect of the present invention, the upper ends of a pair of left and right front arms 10 and a rear arm 11 are pivotally connected to each other by horizontal shafts 14 and 15, and a front arm is provided. Ten
The door face body 6 is flexibly connected to the lower end of the front arm 10 by a connecting shaft 23, and when the front arm 10 is lowered downward, the door face body 6 extends below the front arm 10 and the front arm 10 is moved rearward. The door face body 6 is pivoted about the connecting shaft 23 in conjunction with the vertical movement of the front arm 10 about the horizontal axis 14 so that the door face body 6 is bent below the forearm 10 and folded when it is raised. The lower end of the rear arm 11 is rotatably connected to the door face body 6 by a horizontal shaft 26 so as to bend and extend, and when the door face body 6 is in the closed state, the door face body 6 is closed.
Is provided in the closing direction, and when the door is not in the closed state, the urging means 12 is provided to urge the door face body 6 in the opening direction. The present invention described in claim 2 is the invention according to claim 1,
At least one of a pair of left and right front arms 10 and a rear arm 11 is connected by a reinforcing rod 34.

[0011]

When the forearm 10 is lowered, the door face body 6 extends below the forearm 10 to close the entrance 7. When opening the doorway 7, the front arm 10 is raised backward about the horizontal axis 14 at the upper end. Then, interlocking with this, the rear arm 11 pivots in the ascending direction around the horizontal axis 15 at the upper end, and pivots the door face body 6 forward around the coupling shaft 23. Accordingly, the door face body 6 is raised while being folded below the forearm 10, and is held by the urging means 12 in a state of being folded below the forearm 10 at the upper limit position.

Further, since at least one of the left and right arms of the front arm 10 and the rear arm 11 is connected by the reinforcing rod 34, the position of the door face body 6 offset to one end in the left-right direction by hand is held. Even if the door surface body 6 is opened and closed up and down, the pair of left and right front arms 10 and rear arms 11 do not twist in the vertical direction, and move up and down while maintaining the same height.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. 1 and 2 show a garage with a roof 1 according to the present invention.
2 shows the first embodiment adopted. In FIGS. 1 and 2, reference numeral 3 denotes four columns arranged in the front, rear, left and right directions, and 4 denotes a pair of left and right girder members erected in the front-rear direction on top of the front and rear columns 3, and the roof member 1 Supported.

Reference numeral 5 denotes a pair of right and left mounting bases, which are mounted near the front end of each beam member 4. 6 is the entrance to garage 2
7 and is connected to a pair of left and right front arms 10 and a rear arm 11 via a pair of right and left connecting members 9 fixed to a horizontal rail 8 on the upper side of the door face body. It is supported by an arm 10 and a rear arm 11 so as to be openable and closable in a vertical direction. Reference numeral 12 denotes a gas spring that constitutes an urging means.

As shown in FIGS. 3 and 4, the upper end of the forearm 10 is pivotally attached to a fixing bracket 13 fixed to the front end of the lower surface of the mounting base 5 so as to be rotatable about a horizontal axis 14. The upper end of the rear arm 11 is pivotally attached to the rear end of the side surface of the mounting base 5 so as to be rotatable around a horizontal axis 15.

As shown in FIGS. 5 to 8, the connecting member 9 includes a main body 16 having a substantially U-shaped cross section and an open lower side.
It is composed of a pair of left and right pivotal support brackets 17 and fixed brackets 18 that protrude forward from the front wall 16a.
The main body 16 of the connecting member 9 is slidably fitted to the horizontal rail 8 of the door face body 6 in the left-right direction. One or two bolts / nuts 19 and the engaging plate 20 are provided on the rear wall 16b side. It is fixed to the horizontal rail 8 so that the position can be adjusted in the left-right direction. The horizontal rail 8 has an engagement groove 21 on the inner side surface, and an engagement plate 20 is inserted into the engagement groove 21.

The lower end of the forearm 10 is inserted between the pair of pivot brackets 17 of the connecting member 9 as shown in FIGS. It is rotatably connected. The door body 6 can be bent around the connecting shaft 23 with respect to the forearm 10.

An upwardly projecting fixing link 24 is interposed between the pair of fixing brackets 18 of the connecting member 9 and is fixed by two bolts 34 inserted into two upper and lower holes 25 of the fixing bracket 18. ing. At the upper end of the fixed link 24, a horizontal shaft 26 is provided upward and away from the axis of the connection shaft 23, and the lower end of the rear arm 11 and the gas spring
The lower ends of the twelve piston rods 27 are rotatably connected.

When the rear arm 11 is closed by lowering the front arm 10 in conjunction with the vertical movement of the front arm 10 about the horizontal axis 14, the door face body 6 extends below the front arm 10. When the forearm 10 is raised backward, the door
The door face body 6 is configured to bend and extend about the connecting shaft 23 so that the door body 10 is bent and folded to the lower side of the front arm 10.

The horizontal shaft 26 may be fixed to the upper end of the fixed link 24 by welding or the like, or may be constituted by bolts and fastened together with the rear arm 11 and the piston rod 27. Fixed link 24, rear arm 11, rear arm 11
Spacers 28 and 29 are interposed between the piston rod 27 and the piston rod 27, respectively.

The gas spring 12 urges the door face body 6 in the closing direction when the entrance 7 is closed by the door face body 6, and applies the door face body 6 in the opening direction in each state including the fully opened state other than the closed state. It has a biasing force so that the cylinder 30 and the piston rod 27 extend. The upper end of the cylinder 30 of the gas spring 12 is rotatably connected to a bracket 31 projecting rearward from an upper and lower middle part of the forearm 10 by a horizontal shaft 32.

Next, the operation of the switchgear having the above structure will be described. FIGS. 1 and 2 show a closed state in which the doorway 7 of the garage 2 is closed by the door face body 6. In this closed state, as shown by solid lines in FIGS. 4 and 9, the forearm 10 descends from the horizontal axis 14 in a substantially vertical direction, and the door face body 6 extends below the forearm 10 in a substantially vertical direction. doing. The door body 6 is held in a closed state by the urging force of the gas spring 12.

That is, in this closed state, the piston rod 27
The horizontal axis 26 connecting the horizontal axis 26 and the fixed link 24 is located forward of a line connecting the horizontal axis 32 at the upper end of the cylinder 30 and the connection axis 23, and the urging force of the gas spring 12 is applied to the horizontal axis 26. 4 is acting in the direction indicated by the arrow a in FIG. 4, the front arm 10, the rear arm 11 and the fixed link 24 are stable in this state, and the door face body 6 does not swing unstably back and forth. .

When the door body 6 is stored in the raised position to open the entrance 7 side, the door body 6 is pulled forward below the connecting shaft 23 at the lower end of the front arm 10 or the rear arm Push the lower end of 11 backward. Then the rear arm 11 is the horizontal axis at the upper end
While rotating in the direction shown by the arrow b in FIG.
Since the fixed link 24 rotates backward in the direction of the arrow c around the connecting shaft 23, the door face body 6 is connected to the fixed link via the connecting member 9.
It rotates around the connecting shaft 23 integrally with 24, and its lower end side projects forward.

At this time, until the horizontal axis 26 reaches a line connecting the horizontal axis 15 and the connecting shaft 23, the forearm 10 is moved to the horizontal axis 14 at the upper end.
It turns around forward, but the amount of the turn is very small. The horizontal shaft 26 is connected to the horizontal shaft 32 on the upper end side of the cylinder 30 and the connecting shaft.
Until the gas spring 12 contracts against the urging force until the gas spring 12 moves beyond the line connecting the line 23 and 23, the urging force of the gas spring 12 causes resistance of the opening operation, but the contraction amount is extremely small. Slight, no problem.

When the horizontal axis 26 exceeds the line connecting the horizontal axis 15 and the connecting shaft 23 to the rear, the front arm 10 moves rearward with the horizontal axis 14 at the upper end as a fulcrum in the direction indicated by the arrow d in FIG. When the forearm 10 is pushed rearward, the forearm 10 rises while rotating backward about the horizontal axis 14. Then, as the front arm 10 rotates, the connecting shaft 23 gradually approaches the horizontal shaft 15 at the upper end of the rear arm 11. For this reason, the rear arm 11 is horizontal
While rotating backward in the direction of arrow b around 15, the fixed link 24 is relatively pushed in the direction of arrow c around the connecting shaft 23 via the horizontal shaft 26, and the fixed link 24 and the door face body 6 Pivots around the connecting shaft 23 in the direction indicated by the arrow c and simultaneously rises rearward.

Accordingly, the door surface body 6 rotates from the extended state shown by the solid line in FIG. 9 around the connecting shaft 23 in the direction shown by the arrow c, and passes through the state shown by the two-dot chain line in FIG. When the forearm 10 rises upward while being bent and folded to the upper limit position, as shown in FIG.
Is stored in the vicinity of the lower side of roof 1 in a state where it is folded below.

[0028] For example, in FIG. 11, the front arm 10 when rotated only d arrow direction angle alpha ₁ from the closed state to the rear, connecting shaft 23 is moved rearward from A to A _1. Thus the rear arm 11 is rotated in b arrow direction by an angle beta _1, the horizontal axis 26 B
Rotates in c arrow direction connecting shaft 23 around to B ₁ from. Accordingly, the door facepiece 6 is rotated integrally with the fixed link 24, its lower end projects forwardly rotated from C to C _1.

In this case, since the approach amount of the connecting shaft 23 to the side of the horizontal shaft 15 is large relative to the unit rotation angle of the forearm 10, the door face body 6 becomes large around the connecting shaft 23 in the direction of arrow c. Rotate. However, the upper end side of the door face piece 6, i.e. the connecting shaft 23 so moves largely and backward to A ₁ from A, just the door tetrahedron 6 to the connecting shaft 23 around compared with the case of rotating, the amount of projection of the front Is kept small.

The forearm 10 is rotated to an angle α ₂ and the connecting shaft
If 23 moves from A ₁ to A ₂ , the rear arm 11 becomes the angle β
Since the horizontal shaft 26 rotates until ₂ is rotated from B ₁ to the connecting shaft 23 about the B _2, the lower end of the door face piece 6 which rotates the connecting shaft 23 around integrally with the fixed link 24, C ₁ increases while retreating to C ₂ from.

Subsequently, when the forearm 10 rotates at angles α _{3 and} α ₄ and the connecting shaft 23 moves to A _{3 and} A ₄ and rises, the rear arm 11 rotates at angles β _{3 and} β ₄ . Therefore, the horizontal axis 26 is the connecting axis 23
Moves B _3, B ₄ around the lower end of the door facepiece 6 rises significantly and C _3, C _4.

[0032] That is, according to the connecting shaft 23 of the lower end of the front arm 10 is raised to move the A _2, A ₃ ..., the horizontal axis of the connecting shaft 23
Since the amount of movement of the connecting shaft 23 in the vertical direction increases while the amount of approach to the connecting shaft 15 gradually decreases, the door face body 6 gradually lowers the rotation speed of rotating about the connecting shaft 23 while While being bent and folded to the lower side of the arm 10, it rises rapidly as the forearm 10 rises.

On the other hand, the forearm 10 starts to rotate backward, and the horizontal axis 26 is the horizontal axis on which the cylinder 30 side of the gas spring 12 is pivotally mounted.
When the gas spring 12 moves backward from the line connecting the connecting shaft 32 and the connecting shaft 23, the urging force of the gas spring 12 acts on the fixed link 24 around the connecting shaft 23 in the direction indicated by the arrow c. Therefore, the forearm 10
After turning back and starting to rise, the door face body 6 can be lifted lightly while utilizing the urging force of the gas spring 12.

[0034] Then, when pre-rotation arm 10 to an angle alpha ₅ upper forearm 10 becomes substantially horizontal and Ketazai 4. At this time, both the forearm 10 and the fixed link 24 extend around the connecting shaft 23 to a state in which both the substantially straight state or the state of being in a straight state,
Since the connection shaft 23 is located near the lower side of the line connecting the horizontal shafts 15 and 26 at both ends of the rear arm 11, the front arm 10 and the rear arm 11 cannot rise upward.

Even in this state, since the urging force of the gas spring 12 acts in the upward direction, the front arm 10, the rear arm
Gas spring 12 considering the weight of 11 and door face 6 etc.
If the urging force is set, the door face body 6 can be reliably held at the raised position.

When closing the doorway 7 by lowering the door face body 6, if the tip side of the door face body 6 is pulled down, each part operates in the opposite direction and the door face body 6 is lowered. Even during this downward movement, the urging force of the gas spring 12 is acting in the upward direction, so that the door face body 6 does not suddenly descend. If the urging force of the gas spring 12 and the overall weight are balanced, the door face body 6 can be stopped during the lowering operation.

When the doorway 7 is thus opened, the door body 6, the front arm 10, and the rear arm 11 can be stored in a folded state near the lower side of the roof 1, so that a small storage space is provided below the roof 1. If there is enough, it can be stored. Moreover, since the upper ends of the front arm 10 and the rear arm 11 are pivotally connected to the mounting base 5 by the horizontal shafts 14 and 15 to open and close the door face body 6, as in the conventional case, the support for the roof 1 is used. It is not necessary to provide a column or a guide rail other than 3 on both sides of the entrance 7 or to provide a long guide rail on the beam 4 in the front-rear direction.

If the distance between the left and right mounting tables 5 differs depending on the construction site, loosen the bolts and nuts 19 and connect the connecting members.
9 can be adjusted by sliding in the left and right direction along the horizontal rail 8 of the door face body 6.

FIGS. 12 and 13 show a second embodiment of the present invention, in which a reinforcing rod 34 is provided above the pair of left and right rear arms 11 to reinforce the pair of rear arms 11 by connecting them to the left and right. It is a thing. Thus, the pair of right and left rear arms 11 is
If the door face body 6 is opened and closed up and down by holding the position shifted to the left or right side of the door face body 6 by hand,
Vertical twist of the pair of left and right rear arms 11 can be prevented,
Accordingly, the pair of left and right forearms 10 is prevented from being twisted.

Therefore, when the door face body 6 is opened and closed, the pair of left and right arms 10 and 11 move up and down while maintaining the same height, so that the opening and closing operation becomes very easy and smooth.
The durability of the pair of left and right arms 10, 11 and the urging means 12 is improved. Further, since the reinforcing rod 34 connects the pair of left and right rear arms 11 on the upper side close to the roof 1, the appearance is not impaired by the reinforcing rod 34.

The reinforcing rod 34 is shown by a two-dot chain line S in FIG.
As shown by, they may be provided on the pair of left and right forearms 10 or on both sides. The position of the reinforcing rod 34 is
Although the upper side is preferable in appearance, it can be provided at the center in the vertical direction or at the lower part.

However, as shown by the solid line in the third embodiment of FIG. 14, when the reinforcing rod 34 is provided below the front arm 10 within the range of the height of the fixed link 24, it is necessary to prevent interference with the fixed link 24. The reinforcing rod 34 needs to be slightly bent forward. In addition, a pair of left and right front arms 10 and rear arms 11 are arranged inside and outside reversed, and a reinforcing rod 34 is provided between rear ends of brackets 31 protruding rearward from each front arm 10, and left and right through each bracket 31 The pair of forearms 10 may be connected.

Further, in each embodiment, the front arm 10 and the rear arm 11 are pivotally attached to the common mount 5, but they may be pivotally attached to separate members. Furthermore, front arm 10 and rear arm 11
Are arranged so as to be shifted in the left-right direction. However, if they do not interfere with each other, they may be arranged so as to overlap in the front-rear direction at the same position in the left-right direction.

Further, the door face body 6 may be in the form of a blind plate, a grid, or the like, and is not limited to a specific structure. The connecting member 9 may be fixed to the horizontal rail 8 of the door face body 6, or the pivot bracket 17 and the fixing bracket 18 may be separated and
8 may be fixed. Further, the fixed link 24 may be directly fixed to the horizontal rail 8.

[0045]

According to the first aspect of the present invention, the upper ends of the pair of left and right front arms 10 and rear arms 11 are connected to the horizontal shafts 14 and 15.
And the door face body 6 is connected to the lower end of the front arm 10 by a connecting shaft 23 so as to be able to bend and extend freely. When the front arm 10 is lowered downward, the door face body 6 is
Of the forearm 10 about the horizontal axis 14 so that the door surface body 6 is bent downward and folded under the forearm 10 when the forearm 10 is extended downward and the forearm 10 is raised backward. The lower end of the rear arm 11 is rotatably connected to the door face body 6 by a horizontal shaft 26 so as to bend and extend the door face body 6 about the connection shaft 23 in conjunction with the door face body 6. When the door face body 6 is in the closed state, the door face body 6 is closed. 6 is urged in the closing direction, and the urging means 12 for urging the door surface body 6 in the opening direction when the door is not in the closed state is provided. The door face body 6 can be opened and closed in the vertical direction without providing any support, guide rail, or the like.

Therefore, when the door body 6 is raised and the entrance 7 is opened, there are no obstacles such as pillars and guide rails for the door body on both the left and right sides of the entrance 7 side. In such a case, the driving operation can be easily performed, and the external appearance is improved.

Further, the front arm 10 and the rear arm 11 are rotatably connected around the horizontal shafts 14 and 15 at the upper end so that the door face body 6 can be opened and closed in the vertical direction. A guide rail for guiding the upper end portion of the rear arm in the front-rear direction is not required as compared with the type in which the portion is moved in the front-rear direction. Moreover, when the door 6 is lifted to open the doorway 7, the door 6 is folded under the arms 10, 11, so that the whole can be stored compactly, and there is no need to secure a wide storage space.

According to the present invention, at least one of the pair of left and right front arms 10 and the rear arm 11 is connected by the reinforcing rod 34.
Even if the door face body 6 is opened and closed up and down by holding the position of the door face body 6 shifted to one end in the left-right direction, the pair of left and right forearms 1
0, the vertical distortion of the rear arm 11 can be prevented. Therefore, when the door face body 6 is opened and closed, the pair of left and right arms 10, 11 move up and down while maintaining the same height, so that the operation at the time of opening and closing becomes very easy and smooth, and the pair of left and right arms 10 , 11 and the urging means 12 are improved in durability.

[Brief description of the drawings]

FIG. 1 is a perspective view of an entire covered garage showing a first embodiment of the present invention.

FIG. 2 is a front view of the covered garage showing the first embodiment of the present invention.

FIG. 3 is a cross-sectional front view of the arm portion showing the first embodiment of the present invention.

FIG. 4 is a sectional view taken along line XX of FIG. 3;

FIG. 5 is a cross-sectional plan view of the arm connecting portion showing the first embodiment of the present invention.

FIG. 6 is a sectional side view of the arm connecting portion showing the first embodiment of the present invention.

FIG. 7 is a perspective view of the arm connecting portion showing the first embodiment of the present invention.

FIG. 8 is a perspective view of the connecting member according to the first embodiment of the present invention.

FIG. 9 is a sectional side view of the first embodiment of the present invention in a closed state of the door face body.

FIG. 10 is a sectional side view of the first embodiment of the present invention in an open state of the door face body.

FIG. 11 is an operation explanatory diagram showing the first embodiment of the present invention.

FIG. 12 is a front view of a covered garage showing a second embodiment of the present invention.

FIG. 13 is a sectional side view showing a second embodiment of the present invention.

FIG. 14 is a sectional side view showing a third embodiment of the present invention.

[Explanation of symbols]

 6 Door panel 10 Front arm 11 Rear arm 12 Energizing means (gas spring) 14,15 Horizontal axis 23 Connecting axis 26 Horizontal axis 34 Reinforcing rod

Claims (2)

(57) [Scope of request for utility model registration] 1. A pair of left and right forearms (10) and a rear arm (1).
The upper end of (1) is pivotally connected to the horizontal shafts (14) and (15) and the door body (6) is connected to the lower end of the forearm (10) by the connecting shaft (23).
When the forearm (10) is lowered downward, the door face body (6) extends below the forearm (10) and the forearm (10) is raised rearward when closed. When the door face body
The door face body (6) is connected to the connecting shaft by interlocking with the vertical movement of the forearm (10) around the horizontal axis (14) so that (6) is bent and folded below the forearm (10). (23) The lower end of the rear arm (11) is rotatably connected to the door face body (6) by a horizontal shaft (26) so as to bend and extend around the door arm, and the door face body (6) is closed when the door face body (6) is in the closed state.
(6) is biased in the closing direction, and when the door is not in the closed state,
(6) An opening / closing device for a door body, comprising an urging means (12) for urging the door in the opening direction. 2. A pair of left and right forearms (10) and a rear arm (11).
At least one of the left and right arms is a reinforcing rod (3
The door opening / closing device according to claim 1, wherein the door surface opening / closing device is connected by (4).