JPH0941839A - Laterally opened shutter with automatic opening/closing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a laterally opened shutter with an automatic opening/ closing device connected with vertically slender unit panels bendably on the right and left, generating low noises when it is opened or closed, capable of being lightly opened or closed manually at the time of a power stoppage, and requiring a low installation cost. SOLUTION: A shutter main body 34 is suspended travelably along a suspension rail 19 via suspension wheels 6, and the shutter main body 34 is connected with multiple vertically slender unit panels 1 bendably around vertical shafts 7, 9 to the right and left. Each unit panel 1 is guided by side wheels 8 located on both sides of the upper end so that the panel face is directed to the traveling direction. Each unit panel 1 is provided with upward rack teeth 28 on the upper end, and a drive pinion meshed with the rack teeth 28 is excited vertically movably and normally upward at the linear section of the suspension rail 19. One tooth is omitted between adjacent rack teeth 28 at the position where the suspension rail 19 is inclined.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laterally-opening shutter in which a shutter main body in which unit panels elongated in the longitudinal direction are flexibly connected to the left and right is suspended so that it can travel along suspension rails. The present invention relates to a laterally opening shutter provided with an automatic opening / closing device that causes a shutter body to run along a rail.

[0002]

2. Description of the Related Art A plurality of vertically elongated unit panels are flexibly connected right and left around a vertical axis to form a shutter body, and the shutter body is run along horizontal suspension rails to open and close. Side-opening shutters are known. Conventionally, as an automatic opening / closing device for this type of shutter,
Many structures have been proposed in which timing belts and chains are arranged along suspension rails. While these structures are reasonably rational, the building in which you are installing the shutters usually has dimensional errors that are far greater than those allowed by the machinery, so over long spans. It is difficult to accurately set the positional relationship between the rail and the timing belt or chain, and it takes time and effort for construction.
In addition, the belt and chain are stretched, and maintenance is troublesome.

As another structure of the automatic opening / closing device, there is a rack and pinion type. FIG. 9 shows an example thereof, in which the unit panel 1 has a U-shaped cross section and rack teeth are formed by the unit panel itself. The pinion 37 has teeth 47 that engage with the recesses 46 on the back side of each unit panel, and the shutter body 34 is opened and closed by rotating the pinion 37 forward and backward about the axis 48.

[0004]

A conventional shutter having an automatic opening / closing device has a large noise level when it is opened / closed, a large force is required to manually open / close it during a power failure, and the cost is high. was there. An object of the present invention is to solve these problems and to obtain a lateral opening shutter with an automatic opening / closing device having a better structure and function.

[0005]

A laterally opening shutter provided with an automatic opening / closing device according to the present invention is a suspension rail 19 having a plane L shape or a U-shape, and a suspension wheel 6 mounted on the suspension rail. A shutter main body 34 hung along the carriage so that it can travel along the shutter main body 34. The shutter main body 34 is formed by connecting a plurality of vertically elongated unit panels 1 to the left and right so as to be bendable about the vertical axes 7 and 9, respectively. The unit panels 1 are laterally open shutters in which side wheels 8 located on both sides of the upper end thereof are guided so that the panel surfaces face the traveling direction, and each unit panel 1 is provided with upward rack teeth 28 at its upper end.
In the straight portion 36 of the suspension rail 19, the rack teeth 28
The pinion 37 that meshes with the pinion 37 is arranged.
It is characterized in that an electric motor 40 for driving forward and backward is provided.

According to a second aspect of the present invention, in the lateral opening shutter according to the first aspect, the pinion 37 is arranged so as to be vertically movable and urged upward.
Is provided with a meshing device 44 for urging the rack teeth 28 to mesh with the rack teeth 28.

According to a third aspect of the present invention, in the side-opening shutter according to the first aspect, the rack teeth 28 are the suspension rails 1.
The suspension rail 19 is provided in the direction of the outside of the corner portion 31 of 9
And is provided so as to be offset from the center of the panel.

According to a fourth aspect of the invention, in the laterally opening shutter according to the first, second or third aspect, each unit panel 1
Are suspended by a single suspension wheel 6 located approximately in the center of the upper end thereof, and each unit panel and a unit panel adjacent to the unit wheel are flexibly connected to each other along the vertical axes 7 and 9. Are connected so that they can move relative to each other in the vertical direction, and one tooth missing tooth 45 is provided between the rack teeth 28 of each unit panel and the rack teeth of the unit panel adjacent thereto.

According to a fifth aspect of the present invention, in the laterally opening shutter according to the fourth aspect, each unit panel 1 is provided with meshing teeth 25 and 26 at both fore edge portions of the rack teeth 28. , 26 mesh with the meshing teeth 25, 26 of the adjacent unit panels to fix the relative vertical movement when the unit panel 1 moves to the linear portion 36 of the suspension rail 19.

[0010]

In order for the shutter body to travel along the rail, there must be a play between them. However, if the unit panel 1 of the shutter body is suspended from the suspension rail 6 by the suspension wheel 6, the vertical play between the suspension wheel 6 and the suspension rail 19 is reduced to zero by the weight of the unit panel 1. it can. The conventional rack and pinion type automatic opening / closing device has a structure in which the rack teeth are oriented in the direction perpendicular to the surface of the panel and the pinions are meshed from the side, so the meshing state of the rack teeth and pinion is not constant, and noise is generated. It required extra power to open and close. On the other hand, in the present invention, the rack teeth 28 are provided upward and the pinion 37 is provided.
Since the gears are meshed from above, the meshing reaction force is received between the suspension wheels 6 and the suspension rails 19 with no gaps, so that the meshing state between the rack teeth 28 and the pinion 37 is kept constant, and the noise of the noise is suppressed. It is possible to generate less power and increase power transmission efficiency.

According to the second aspect of the present invention, the rack teeth 28 and the pinion 37 are disengaged from each other when the power is turned off or a power failure occurs. Therefore, when the shutter is opened and closed by hand, the load resistance of the automatic opening / closing device does not act. , You can open and close the shutter with a light force. When the automatic opening and closing are performed, the meshing device 44 is operated to mesh the pinion 37 with the rack teeth 28 before driving the pinion 37. If rack teeth 28 and pinions 37 have toothed shapes with sharp cutting edges, and a swing up / down structure or the like causes the pinions 37 to move downward while slightly moving in the traveling direction of the shutter,
The rack teeth 28 and the pinion 37 can be smoothly meshed with each other while avoiding collision between the cutting edges. By forming the rack teeth 28 with a synthetic resin molded product and using the pinion 37 made of metal, low cost, low noise, and durability can be satisfied at the same time.

According to the third aspect of the present invention, the pinion 37 and the rack teeth 28 are located laterally of the suspension rail 19, and the bearing of the pinion 37 and its drive motor 40 are mounted on the suspension rail 19. Therefore, the device can be made compact and the rack teeth 28
Accurate positional accuracy between the pinion 37 and the pinion 37 can be easily realized.

The lateral opening shutter according to the fourth aspect does not hinder the opening and closing of the shutter even when the suspension rail 19 has a vertical gradient. Since each unit panel 1 is suspended by one suspension wheel 6, even if the suspension rail 19 has a slope, it can maintain its vertical posture by gravity. The step generated between the adjacent unit panels is absorbed by the relative movement of the connecting portions of the unit panels in the directions along the vertical axes 7 and 9. That is, the part 36 of the suspension rail with slope
Then, the adjacent unit panels are staggered from each other. At this time, the rack teeth 28 of each unit panel are horizontal, and a step is formed between the rack teeth 28 of the adjacent unit panel. By providing the one-toothed toothless portion 45 at the connecting portion between the racks having the step difference, the pinion 37 can be smoothly moved to the rack tooth of the adjacent unit panel without causing noise.

The lower side of the shutter body 34 is the lower rail 1.
8 is guided only in the direction perpendicular to the plane. When the shutter body 34 is at the corner 31 of the suspension rail,
When it is bent at an angle close to 0 degrees,
When each unit panel 1 is suspended by one suspension wheel 6, the runout of each unit panel in the traveling direction is 90 ° relative to the unit panel and is perpendicular to the plane of the lower end of the unit panel. This is prevented by restricting the movement in the direction (the movement in the traveling direction of the panel about to swing). However, when the entire shutter enters the straight portion of the suspension rail 19, the movement of the lower end of each unit panel 1 in the traveling direction is not restricted, and thus each unit panel may be inclined in the traveling direction. A fifth aspect of the present invention is a shutter having a structure in which the unit panel 1 of the shutter main body is suspended by one suspension wheel 6 (a structure capable of accommodating the slope of the suspension rail 19), and the entire shutter is the suspension rail 19.
Even when the unit panel enters the straight section 36, the vertical posture of each unit panel can be maintained.

That is, when the unit panel 1 passes through the corner portion 31 of the suspension rail, the meshing teeth 25 and 26 of the small edge portion of the rack teeth located on the outer peripheral side of the bent portion are the meshing teeth 25 of the adjacent unit panels. , 26. When the unit panel 1 passes through the bent portion and enters the straight portion 36, the meshing teeth 25 and 26 of the adjacent unit panels mesh with each other. At this time, if there is a gradient in the straight line portion, the meshing teeth 25, 26 are displaced in a state of a step corresponding to the gradient.
Mesh with each other. Further, this meshing prevents vertical relative movement between the side of each unit panel and the side of the adjacent unit panel, and thus prevents the unit panel 1 from swinging in the traveling direction. Since it is not possible for only some unit panels to swing in the running direction, if the vertical posture of the unit panel that entered the straight line section is maintained as described above, the vertical posture of the succeeding unit panels will also be maintained. It The vertical posture of the unit panel that first enters the straight portion is assured by the lower rail 18 guiding the lower end of the unit panel that has not yet entered the corner portion 31, as described above.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments shown in the drawings will be described below. This embodiment is a structure provided with all the matters described in claims 1 to 5. The unit panel 1 constituting the shutter body is in the shape of a hollow strip that is elongated in the vertical direction, and one vertical side 2 has a substantially semi-circular convex section, and the other vertical side 3 has a substantially semi-circular concave section. . Adjacent unit panels 1 and 1 are flexibly connected to each other around the arc centers of the vertical sides 2 and 3.

A spacer block 4 and a roller bracket 5 are fixed in a stacked state on the edge surface at the upper end of each unit panel 1. In FIG. 1, the spacer block 4 and the roller bracket 5 are shown separated from the unit panel 1, but actually, they are fastened to the upper edge of the unit panel 1 by screws (not shown) (see FIG. 2). .

A suspension wheel 6 is mounted on the roller bracket 5 so as to suspend the unit panel 1 at its center of gravity. Further, an upper vertical axis 7 is erected at one end of the roller bracket 5 in a state where the upper and lower sides thereof are projected, and a side wheel 8 is rotatably supported by a protruding end above the side vertical axis 7. At the lower end of each unit panel 1, a lower vertical axis 9 is erected upward at a position on the same axis as the upper vertical axis 7 via a shaft bracket 11. The upper vertical axis 7 and the lower vertical axis 9 are located at the center of the arc of the vertical side 3 of the concave cross section of each unit panel.

An upper vertical hole 12 and a lower vertical hole 13 are provided at the upper and lower ends of the vertical side 2 of the convex cross section of the unit panel 1 at the position of the center of the arc, and the upper vertical axis 7 and the lower vertical axis 9 are the upper side. By being inserted into the vertical hole 12 and the lower vertical hole 13, the adjacent vertical sides 2 and 3 are flexibly connected to each other. Notches 14 and 15 are provided at both ends of the spacer block 4 so as to form a space around the upper vertical axis 7. And the lower vertical axis 9
The height of planting is smaller than the thickness (vertical dimension) of the spacer block 4, and the downward protrusion length of the upper vertical axis 7 is longer than the thickness of the spacer block 4. Also roller bracket 5
A notch 16 is provided at the end on the side opposite to the wheel so as not to interfere with the adjacent side wheel. With this structure,
The unit panel on the back side of the upper block is lifted by the thickness of the spacer block 4, the lower vertical axis 9 is pulled out from the lower vertical hole 13, and is pulled down in a slightly slanted state.
The unit panels can be separated from the unit panels on the front side of the drawing by pulling out from the unit, and the unit panels can be sequentially connected in reverse order. By sequentially connecting the unit panels by such an operation, a shutter body having a desired width is formed. The notches 15 and 16 on the front side in FIG. 1 of the spacer block 4 and the roller bracket 5 are formed on the side of the unit panel adjacent to one of the unit panels when the one of the unit panels is lifted to extract the lower vertical axis 9 from the lower vertical hole 13. The spacer block 4 is provided in order to avoid interference with the wheel 8, and the notch 14 on the far side of the spacer block 4 in FIG. 1 prevents interference with the upper end of the vertical side of the convex cross section of the unit panel to be lifted. It is provided. Further, due to the above structure,
The rear unit panel in FIG. 1 can move upward along the vertical axes 7 and 9 with a stroke shorter than the planting height of the lower vertical axis 9 with respect to the front unit panel.

An H-shaped shoe 17 is fixed to the lower side of each unit panel 1, and is guided by a lower rail 18 having a U-shaped cross section to restrict movement in the direction perpendicular to the plane.

As shown in FIG. 2, the suspension wheel 6 is guided inside a suspension rail 19 having a U-shaped cross section which opens downward,
The suspension wheel 6 has an arc groove 21 provided on the upper surface of the suspension rail 19.
It is listed in A vertical rib 22 and a mounting seat 23 are integrally formed on the suspension rail 19, and a cover 24 is provided to cover the suspension rail 19 and the suspension wheel 6. Each unit panel 1 is guided on the upper side of both vertical sides 2 and 3 by a side wheel 8 mounted on the panel and a side wheel of the unit panel adjacent to the vertical side of the convex cross section.

The spacer block 4 and the roller bracket 5 are projected to the outer surface side of the shutter main body (on the right rear side in FIG. 1), and horizontal teeth are provided at both fore ends of the protruding portion of the spacer block 4. The meshing teeth 25,
26 is formed. A rack block 27 made of a synthetic resin molded product is fixed to the upper surface of the protruding portion of the roller bracket. Adjacent unit panel 1,
When the ones are aligned with each other, the small edge ends of the adjacent spacer blocks 4 are brought into contact with each other, and the meshing teeth 25 and 26 are meshed with each other. Further, a gap 29 corresponding to one rack tooth 28 formed on the upper surface is formed between the adjacent rack blocks. As shown in FIG. 4, the rack teeth 28 and the meshing teeth 25 and 26 formed on the edge portion of the rack teeth are located outside the corner portion 31 of the suspension rail 19 (outer diameter side).
It is located in. Therefore, when the unit panel passes through the corner portion, the meshing teeth 25, 26 are separated from each other, and the meshing teeth 25, 26 are meshed with each other in the straight line portion,
The rack teeth 28 are aligned. The upper part of FIG. 4 is the opening 32 of the building, and the left side is the side wall 33 of the building. When the shutter is opened, the shutter body 34 is drawn along the side wall 33. When the floor surface 35 (FIG. 5) of the building has a slope for drainage or the like, the linear portion 36 of the suspension rail along the side wall 33 also has a slope as shown in FIG.

The shutter main body 3 meshes with the rack teeth 28.
The pinion 37 that opens and closes 4 is the linear portion 3 with this slope.
It is arranged near the corner portion 31 of No. 6. As shown in FIG. 3, a swing frame 41 is attached to a base 38 fixed on the mounting seat 23 of the suspension rail 19 so as to be vertically swingable around a support shaft 39 that intersects the suspension rail 19 at a right angle. The pinion 37 is fixed to the output shaft 42 of the reduction gear motor 40 mounted on the swing frame, and the rack teeth 28
Is facing. A spring 43 for urging the swing frame 41 upward and a solenoid 44 for pulling it down are connected to the swing frame 41. When the solenoid 44 is not energized, the swing frame 41 is moved upward by the biasing force of the spring 43, and the pinion 37 is separated from the rack teeth 28. When the automatic open / close switch is operated, the solenoid 44 is first energized to pull down the swing frame 41. Since the support shaft 39 of the swing frame is located at a high position, the pinion 37 moves downward while moving slightly in the traveling direction of the unit panel 1 and meshes with the rack teeth 28. Next, the motor is activated to rotate the pinion 37, causing the shutter body 34 to travel.

If the suspension rail 19 of the portion where the pinion 37 is arranged is horizontal, the rack teeth 28 are also arranged in the same horizontal plane, but if the suspension rail 19 has a slope, a step is formed between adjacent rack teeth. As described above, in this embodiment, the gap 29 corresponding to one tooth of the rack tooth is present between the adjacent rack blocks 27, and therefore, one tooth is missing at the connecting portion with the adjacent rack tooth. There is. Due to the existence of this toothless portion, the step between the adjacent rack teeth is connected with a gentle slope, and the impact and noise when passing through this step can be suppressed low.

The interlocking teeth 25, 26 at the small edge of the spacer block 4 have straight line portions 36 with a unit panel having a slope.
When it moves to the unit panel, it meshes with the meshing teeth 25 of the adjacent unit panels that have previously entered the straight section with a step, and prevents the vertical sides 2 and 3 that are opposite to each other from sliding, thereby Prevent tilting of 1. Therefore, the vertical posture of each unit panel is maintained even after all the unit panels are drawn into the linear portion 36 having the slope. When passing through the corner portion 31 of the suspension rail, the meshing teeth 25, 26 are separated from each other. Therefore, when passing through the corner portion and entering a horizontal straight line portion, the meshing teeth 25 facing each other in a relative positional relationship without a step. And 26 mesh with each other.

6 to 8 show the lock mechanism of the shutter body. An operating rod 61 is arranged along the vertical side 2 on the convex section side of the top unit panel 1, and a knob 62 is provided at an intermediate position of the operating rod. Operating rod 61
Has sliders 63 and 64 fixed above and below,
This slider slides in a guide hole 65 provided in the unit panel 1 and is vertically movable. The tip of the knob 62 projects from an elongated hole 66 provided on the inner side surface of the unit panel 1, and when the knob is lifted, the operating rod 61 moves upward by the length of the elongated hole. A lock 67 is provided on the outer surface of the unit panel,
The lock 67 is provided with a lever 68 that swings with a key. The tip of the lever 68 is engaged with the base of the knob 62, and when the lock 67 is turned with a key, the lever 68 is rotated to rotate the operating rod 6
1 is moved up by the length of the long hole.

The roller bracket 5 of the leading unit panel is integrally provided with an eave 72 inside the tip thereof, and a steady wheel 73 is provided at the center of the tip of the roller bracket 5. A wedge-shaped claw 74 is fixed to the eaves 72 with its tip pointed forward, and a release plate 75 having a shorter height than the claw is arranged behind the claw 74. The release plate traverses the roller bracket 5, three guide rods 76, 76, 76 hang down on its lower surface at equal intervals, and a weight 77 is fixed to the release plate on the side opposite to the claws. 2 in the center and outside
The rods 76, 76 of the book pass through the spacer block 4, of which the central rod 76 projects largely downward and contacts the slider 63 of the operating rod 61 at the lower limit position.

On the other hand, a locking tool 79 is provided on the inner surface of the suspension rail 19 via an L-shaped bracket 78. The locking tool is composed of a guide cylinder 81 and a locking pin 82 which is vertically movably housed in the guide cylinder 81, and the locking pin normally projects to a position where the eave 72 of the roller bracket passes by its own weight. When the shutter body is closed, the claw 74 of the leading unit panel 1 shown by the solid line in FIG. 8 pushes up the locking pin 82 and advances to the position of the imaginary line. After passing through the pawl, the locking pin moves downward and abuts on the release plate 75 to prevent the pawl 74 from returning backward and to lock. To release the lock, operate the lock 67 from the outside or the knob 62 from the inside,
The operating rod 61 is moved upward. The release plate 75 is raised by the upward movement of the operating rod, and the locking pin 82 is raised to a releasable position. In this state, the shutter body can be opened by moving it in the opening direction.

[0029]

As described above, according to the invention described in claim 1, the noise at the time of opening and closing is small, the power transmission efficiency is good, and
It is possible to obtain an automatic opening / closing side-opening shutter that is low in cost. According to the second aspect of the invention, it is possible to obtain an automatic opening-and-closing side-opening shutter that can be opened and closed manually even during a power failure. According to the third aspect of the invention, the automatic opening / closing device can be made compact and have high positional accuracy. According to the invention as set forth in claim 4, even if a step is formed between the unit panels, the opening and closing can be smoothly and quietly performed.
According to the invention of claim 5, it is possible to prevent the shutter main body from swinging in the traveling direction.

[Brief description of drawings]

FIG. 1 is a perspective view of a side opening shutter and an automatic opening / closing device.

[Fig. 2] Side view of the automatic opening / closing device

FIG. 3 is a front view showing an engaging / disengaging structure of a pinion.

FIG. 4 is a plan view of a unit panel in a corner portion of a suspension rail.

FIG. 5 is a front view showing the shape of the shutter main body when the suspension rail is inclined.

FIG. 6 is a perspective view showing a lock device on the shutter body side.

FIG. 7 is a cross-sectional view showing the main parts of the locking device.

FIG. 8 is an explanatory diagram of locking and unlocking.

FIG. 9 is a plan view showing a conventional automatic opening / closing device.

[Explanation of symbols]

 1 unit panel 6 suspension wheel 7 upper vertical axis 8 side wheel 9 lower vertical axis 19 suspension rail 25 meshing tooth 26 meshing tooth 28 rack tooth 31 corner section 34 shutter body 36 linear section of suspension rail 37 pinion 40 motor with reducer 44 solenoid 45 missing teeth

Claims (5)

[Claims] 1. A plane L-shaped or U-shaped hanging rail (19)
And a shutter body (34) suspended so as to be able to travel along the suspension rail via suspension wheels (6), the shutter body (34) comprising a plurality of vertically elongated unit panels (1). Each unit panel (1) is a side wheel located on both sides of the upper end of the unit panel (1), which is flexibly connected to the left and right around the vertical axis (7, 9).
In the laterally open shutter whose panel surface is guided in (8) so that it faces the traveling direction, each unit panel (1) has an upward rack tooth (28) at its upper end, and a straight part of the suspension rail (19). Pinion meshing with this rack tooth (28) at (36)
(37) is arranged, and a motor (40) for driving the pinion (37) in a forward and reverse direction is provided, and a side-opening shutter provided with an automatic opening / closing device. 2. A meshing device (44) in which a pinion (37) is vertically movable and is urged upward, and the pinion (37) is urged downward to mesh with the rack teeth (28). The lateral opening shutter according to claim 1, wherein the lateral opening shutter is provided. 3. The rack tooth (28) according to claim 1, wherein the rack tooth (28) is provided so as to be offset from the center of the suspension rail (19) and the panel in a direction outside the corner portion (31) of the suspension rail (19). Side-opening shutter. 4. Each unit panel (1) is suspended by a single suspension wheel (6) located approximately in the center of its upper end, and each unit panel and the unit panel adjacent to it suspends both. It is connected to the rack teeth (28) of each unit panel and the rack teeth of the adjacent unit panel adjacent to each other so that they can move relative to each other along the freely connected vertical axis (7, 9). The lateral opening shutter according to claim 1, 2 or 3, characterized in that it has a toothless tooth (45). 5. Each unit panel (1) is provided with interlocking teeth (25, 26) at both fore end portions of the rack teeth (28), and the interlocking teeth (25, 26) are arranged in the unit panel (1). ) Is a hanging rail (19)
5. The laterally opening shutter according to claim 4, wherein when it moves to the straight line portion (36), it meshes with the meshing teeth (25, 26) of the adjacent unit panels to fix the relative vertical movement.