JP2649488B2 - Mechanism for preventing falling of hanger roller in door 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 mechanism for preventing a hanger roller from falling off in an automatic or manual door device.

[0002]

2. Description of the Related Art Conventionally, as a mechanism for preventing a door from falling off in an automatic door device, as shown in FIG. 8, a roller b is pivotally supported on a hanger fitting a, and the roller b is provided on a lower flat plate portion d of a main body base c. 9 and 10, a block-shaped dance-stopping part f is incorporated into a hanger bracket a so as to contact the back surface to prevent the door e from floating. Part f
However, the door e does not float by contacting the upper flat plate portion g of the main body base c. Further, as shown in FIG. There is known a configuration in which a projection i is integrally provided so that a door e does not float.

However, when the roller b is incorporated into the hanger bracket a as shown in FIG. 8, a roller having a considerably small diameter must be used from the viewpoint of installation space and mechanical aspects. It is pointed out that it is also thin and easily broken or bent in terms of axial strength.

[0004] Further, as shown in FIGS. 9 and 10, in the case where a block-shaped dance-stopping part f is incorporated in a hanger bracket a, when the door e dances (when it floats).
In addition, since the pressing force is applied to the projection g, a sliding noise is generated between the component f and the projection i, and a resistance force due to the sliding contact is generated, resulting in an overload on the drive source. Is done.

[0005] Further, as shown in FIG. 11, in the case where a plate-like projection i is provided from the side of the main body base c in the length direction and provided with a plate-shaped projection i, an aluminum sash maker manufactures a blind material j manufactured for an automatic door. From the perspective of the flat bar k, etc.,
It can be said that bringing the center m of the hanger roller h closer to the center n of the door e is ideal from the viewpoint of the durability of the hanger roller h. However, as shown in FIG. In such a case, there is a limit in bringing the center m of the hanger roller h closer to the center n of the door e due to the positional relationship of the locking plunger (not shown).

Therefore, to improve this point,
The direction of the locking plunger (not shown) of the electric lock o
It is conceivable to use a mechanism that can be used in a state where it has been changed to the inspection port p side by 90 degrees instead of downward,
Considering compatibility at the time of maintenance, it is inevitable to base on the current form.

Further, there may be known cases in which an electromagnetic brake (not shown) is attached to a driving pulley (not shown) or a driven pulley (not shown) to control the opening / closing operation of the door e. There are aspects that cannot completely function as locks.

[0008]

SUMMARY OF THE INVENTION In view of the above-mentioned problems of the prior art, in the present invention, a door falling-off prevention plate for preventing the door from floating is provided separately from the main body base. By being configured to be separable by members, even after the door is hung, not only can the assembling be performed, but also the door hanging operation itself can be performed very easily, and when the locking device is incorporated, It is another object of the present invention to provide a mechanism for preventing falling of a hanger roller by a hanger rail member which does not cause a problem.

According to the second aspect of the present invention, the door falling prevention plate is incorporated into the main body base accurately and firmly. In the third aspect, the door falling prevention plate is incorporated into the main body base. The present invention is intended to be accurate and easy, and to improve the repeatability of assembling and removing. According to the fourth aspect, the assembling of the door drop prevention plate to the main body base can be performed simply and accurately with fewer parts. That is the purpose.

[0010]

According to the present invention, in order to achieve the above object, in claim 1, a base rail is provided along a blind plate or the like, and a door runs on the base rail via a hanger roller. A main body base freely suspended and a door drop prevention plate, wherein the main body base is located at a protruding portion continuously provided at an upper portion of a base side of the base rail, and the door drop prevention plate is positioned. The locking groove is formed in the length direction, while the door drop prevention plate is formed along the length direction of the main body base, and the base end in the width direction has the positioning member. A locking projection that can be locked to the locking groove is projected in the length direction, and the falling-off prevention plate engages the locking projection with the locking groove for positioning of the projection. And the hanger roller is fixed to the protruding portion by fixing means. We are trying to provide a captive of the hanger rollers in a door apparatus characterized by being arranged in parallel with the base rail of the upper at the proximity state.

According to a second aspect of the present invention, there is provided a base rail extending along a blind plate or the like, the base rail having a main body base on which a door is hung freely via a hanger roller, and a door drop prevention plate, The main body base is located at an upper portion and a substantially intermediate portion of a front surface of a vertical plate portion of a protruding portion connected to an upper portion on a base side of the base rail, and is used for a door drop prevention plate that opens forward. A locking groove for locking and a groove having a substantially convex cross-sectional shape are provided side by side in the length direction.
The door drop prevention plate extends in the length direction of the main body base and has a substantially L-shaped cross section at the base end in the width direction so as to be lockable with the locking groove for positioning. A locking projection is formed in the length direction, and the door drop prevention plate abuts on the front surface of the locking projection engaged with the positioning locking groove and the front surface of the vertical plate portion of the projection. By fixing the first fixing metal provided and the second fixing metal fitting to the concave groove by screwing, the first fixing metal is parallel to the base rail in a state close to the upper part of the hanger roller. The mechanism includes a mechanism for preventing a hanger roller from falling off in a door device characterized by being provided.

Further, according to the present invention, there is provided a main body base having a base rail along a blind plate or the like, on which the door is hung freely via a hanger roller, and a door drop prevention plate. The main body base is provided on a horizontal plate portion upper surface of a protruding portion continuously provided at an upper portion of the base side of the base rail, and has a generally convex shape in cross section that opens upward and has a cross section for a door falling prevention plate. Is positioned in the length direction, while the door drop prevention plate is extended in the length direction of the main body base, and at the base end in the width direction, A locking projection having a substantially U-shaped cross section is bent in the length direction, and a cap for fixing a drop-prevention plate having a different lateral width in the biaxial direction is perpendicular to the bottom wall in the positioning locking groove. The door is rotatably supported by a shaft, and the door drop prevention plate is used for fixing the drop prevention plate. The locking protrusion is pressed and locked to one side of the positioning locking groove by a system, so that the locking protrusion is disposed in parallel with the base rail in a state close to the upper part of the hanger roller. And a mechanism for preventing the hanger roller from falling off in the door device.

According to a fourth aspect of the present invention, there is provided a base rail along a blind plate or the like, a main body base on which the door is hung freely via a hanger roller, and a door falling prevention. The main body base has a concave groove on the front surface of a protruding portion continuously provided on the base side upper portion of the base rail, and has a substantially convex cross-sectional shape that opens forward. The door drop-prevention plate is extended in the length direction of the main body base in a substantially L-shaped cross section by a horizontal plate portion and a vertical plate portion. At the same time, on the surface of the vertical plate portion, a locking projection capable of engaging with the concave groove is protruded in the length direction, and the door falling-off prevention plate has the locking projection formed by the fixing recess. The vertical plate portion is engaged with the groove, and the vertical plate portion is arranged to face the front surface of the projecting portion. By fixing the portion to the protruding portion by screwing, the mechanism for preventing the hanger roller from falling off in the door device, which is arranged in parallel with the base rail in a state close to the upper portion of the hanger roller, is provided. It has contents.

[0014]

The door is prevented from falling by inserting the locking protrusion provided at the base end of the door falling prevention plate into the positioning locking groove of the door falling prevention plate recessed in the projecting portion of the main body base. Position the plate along the length of the body base.

Next, the door fall-prevention plate is fixed to the projecting portion of the main body base by a fixing means such as a screw, so that the door fall-prevention plate comes close to the upper part of the hanger roller. This prevents the door from coming off due to the lifting of the door via the hanger roller.

As described above, since the door drop prevention plate can be incorporated not only before the door is hung but also after the door is hung, the hanger metal fitting of the door is temporarily attached to the door, and the hanger roller is provided. Can be engaged with the base rail, so that the work of hanging the door can be performed simply and quickly without any obstacles.

In the case where the locking device is incorporated in the base body, the door drop prevention plate is not required at the position where the locking plunger is provided. By cutting it only short, the arrangement with the hanger roller does not hinder.

[0018]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a first embodiment of the present invention; FIG. The drop-off prevention mechanism according to the present invention includes a main body base 1 and a door drop-off prevention plate 2 of a door 3. As shown in FIGS. 1 and 3, the main body base 1 has a substantially U-shaped cross section with the vertical back plate portion 1a, the flat plate portion 1b, and the lower flat plate portion 1c, and is elongated in one axial direction. The base rail 1d is integrally formed in the length direction on the terminal upper surface of the lower flat plate portion 1c.

In the lower part of the inside of the main body base 1,
A horizontal plate portion 4a connected to the back plate portion 1a and a vertical plate portion 4b connected to the base side of the lower flat plate portion 1c are integrally formed with the projecting portion 4 having a substantially inverted L-shaped cross section in the length direction. .

On the front surface of the protruding portion 4, at the upper end thereof, a locking groove 5 for positioning for the door drop prevention plate 2 having a substantially U-shaped cross section and opening forward is provided. At the substantially middle part of the protruding part 4, a fixing groove 6 for the door drop prevention plate 2, which has a substantially convex cross section and is opened forward, is formed. Extending in the vertical direction.

On the other hand, the door drop prevention plate 2 is made of aluminum or the like, and
It is formed in a flat plate shape having a constant lateral width, and its base in the lateral width direction has a vertically bent right-angled vertically bent so as to be able to engage with the above-described positioning groove 5 of the main body base 1. The cross section is substantially L by a plate portion 7a and a horizontal plate portion 7b bent at a right angle rearward (leftward in FIG. 1) from the lower end thereof.
The locking projection 7 in the shape of a letter is integrally formed.

The locking projection 7 of the door drop prevention plate 2
Is engaged with the locking groove 5 for positioning,
As shown in FIG. 1, the width of the door drop prevention plate 2 is set so that the door drop prevention plate 2 is disposed above the hanger roller 8 attached to the base rail 1d with a small gap in a close state. The position of the positioning locking groove 5 is set.

As shown in FIG. 3, the width A of the upper edge 5a of the locking groove 5 for positioning is larger than the width B of the lower edge 5b in the vertical plate portion 7a of the locking projection 7. The thickness is set to be smaller by the thickness, so that even after the door 3 is hung on the base rail 1d, the door falling-off prevention plate 2 against the positioning locking groove 5 can be moved to the position shown in FIG.
The horizontal plate portion 7b is inclined backward from the inspection port 9 shown in FIG.

The above-mentioned door drop prevention plate 2 is composed of a main body base 1
On the other hand, a plurality of sets are used, which are fixed by the first fixture 11, the second fixture 12 and the screw 13 shown in FIGS. become.

As shown in FIG. 1, the first fixing member 11 includes a front surface of the vertical plate portion 4b of the projecting portion 4 and a vertical plate portion 7 of the locking protrusion 7 of the door drop prevention plate 2.
It is formed in a rectangular plate shape so as to be able to butt over the front surface of a, and a screw hole 11a is penetrated at a substantially central portion thereof.

On the other hand, the second fixing fitting 12 is formed in a rectangular plate shape having a length of one side which can be engaged with the fixing groove 6 of the projecting portion 4 by sliding from the groove end, and has a central portion. Is provided with a screw hole 12a for the screw 13.

Therefore, in order to use the above-mentioned falling-off prevention mechanism, as shown in FIG. 3, a desired plurality of second fixing members 12 # are inserted into the fixing groove 6 of the projecting portion 4. If the main body base 1 is fixed to the blind plate 10 or a flat bar (not shown) by bolts as shown in FIG. 1 in this state, the protrusions 4 of the main body base 1 The door drop prevention plate 2 is inserted into the positioning locking groove 5 from the inspection opening 9 and the locking projection 7 is engaged.

Next, the first fixture 11 is connected to the projecting portion 4.
The screw 13 inserted into the screw hole 11a in a stacked state in which the vertical plate portion 4b
Is screwed into the screw hole 12a of the second fixing member 12 and tightened, so that the locking protrusion 7 is fixed by the first fixing member 11 to the locking groove 5 for positioning of the main body base 1.
Press and fix inside.

In this manner, the door drop prevention plate 2 is fixed to the main body base 1 at desired intervals in the length direction by the plural sets of the first and second fixing brackets 11, 12 and the screws 13. For example, the door falling-off prevention plate 2 is provided at a small distance from the upper part of the hanger roller 8, thereby preventing the hanger roller 8 from floating from the base rail 1 d due to the dance of the door 3.

As described above, the door drop prevention plate 2 can be assembled by engaging even after the door 3 is hung on the base rail 1d. Therefore, the hanger bracket 14 is temporarily attached to the door 3 in advance, and in this state, Accordingly, the hanger roller 8 can be engaged with the base rail 1d, so that the work of hanging the door 3 becomes easy.

As shown in FIGS. 1 and 2, when the locking device 15 is incorporated in the main body base 1, the locking plunger 1
6, the door drop prevention plate 2 is unnecessary, and therefore, as shown in FIGS. 2 and 4, the door drop prevention plate 2 has a length l ₁ corresponding to the locking plunger 16 in advance. And the entire length 1 is set to the total length L of the main body base 1.
Although it is shorter than this, the hanger roller 8 is not hindered even in this case. In FIG. 2, reference numeral 17 denotes a key holder.
In FIG. 4, reference numeral 18 denotes a nylon block.

FIGS. 5 and 6 show another embodiment in which the positioning locking groove 5 is formed not on the front surface of the projecting portion 4 but on the upper surface of the horizontal plate portion 4a. In the embodiment, one positioning locking groove 5 can play both roles of the positioning locking groove 5 and the fixing groove 6 in the above-described embodiment. I have.

The positioning groove 5 has a substantially convex shape in cross section, is open upward and is formed to be long in one axis direction. The required number of cams 19 # are engaged with the vertical shaft 20 at a predetermined interval in the longitudinal direction, whereby the cam 19 # can rotate forward and reverse on the bottom wall 5c about the vertical shaft 20. It has become.

The above-described cam 19 for fixing the falling-off prevention plate is shown in FIG.
As described in the above, the width C in the uniaxial direction is formed larger by a predetermined dimension than the width D in the axial direction perpendicular to the uniaxial direction, and can be rotated forward and backward by 90 degrees around the vertical axis 20 so as to be rotatable. At one corner on one diagonal, arc surfaces 19a, 19a having a larger curvature than the other corners are formed.

As the vertical shaft 20, a screw, which is a separate member from the drop-prevention plate fixing cam 19, is prepared, and is passed through the center hole of the drop-prevention plate fixing cam 19 to be inserted into the bottom wall. 5c or into the screw hole of 5c,
By integrally projecting downward from the center of the drop-prevention plate fixing cam 19 and forming a frusto-conical portion 20a at the tip thereof, an upwardly-locking stepped portion 20b is provided around the shaft. It is also possible to provide a radial groove 20c so as to have a spring property in the radial direction.

If the vertical shaft 20 shown in the drawing is used, a shaft hole 5d is formed in the bottom wall 5c, and the vertical support shaft 20 is forcibly pushed in so that the cam 19 for fixing the fall-prevention plate is not dropped. , Can be obtained easily.

On the other hand, the locking projection 7 at the base end of the door drop prevention plate 2 has a substantially U-shaped cross section, and fits into the grooves 5e and 5f opposite to the positioning locking grooves 5. In addition, it is formed so as to be engaged with the concave groove 5e on the front side (the right side in FIGS. 5 and 6).

In the case of the above other embodiment, as shown in FIGS. 5 and 6, the locking projection 7 is engaged with the groove 5e on the front side of the positioning locking groove 5. Door drop prevention plate 2
Are stacked on the horizontal plate portion 4a of the projecting portion 4. In this state, if the interval between the back surface 7c of the locking projection 7 and the opening edge 5g on the rear side (left side in FIGS. 5 and 6) of the positioning locking groove 5 is E, On the other hand, one of the widths D of the above-mentioned falling-off plate fixing cam 19 is set to be small and the other width C is set to be large, and the falling-off preventing plate fixing cam 19 is pivotally supported at the center position of the interval E.

Accordingly, the cam 19 for fixing the falling-off prevention plate is not shown in FIG.
When the door 2 is disposed in the direction shown by the two-dot chain line, the door drop prevention plate 2 is not restrained by the drop prevention plate fixing cam 19, but must be rotated 90 degrees in the direction of arrow F shown in the figure. As a result, as shown in the solid line of FIG. 5 and FIG. 6, the back surface 7c of the locking projection 7 of the door drop prevention plate 2 is formed by one of the opposite side edges in the width direction C of the drop prevention plate fixing cam 19. The locking projection 7 is engaged with the concave groove 5e, and the other end is engaged with the concave groove 5f which is the rear side of the positioning locking groove 5. Will be retained. As a result, the door drop prevention plate 2 is fixed to the main body base 1 and is provided above the hanger roller 8. At the center of the upper surface of the drop-preventing plate fixing cam 19, a tool insertion groove 19b by a driver or the like is recessed.

FIG. 7 is a cross-sectional view of the embodiment shown in FIGS. 1 to 4 in which the positioning locking groove 5 and the fixing groove 6 are recessed on the front surface of the projecting portion 4. Another embodiment is shown in which only one fixing groove 6 having a convex shape is used to cover.

As shown in the figure, the door drop prevention plate 2 has a horizontal section 2a and a vertical section 2b bent downward at right angles from the base end of the horizontal section 2a. About L
The main body base 1 is formed to be long in one axis direction, and the narrow opening 6a of the fixing groove 6 can be engaged with a substantially intermediate portion on the back surface of the vertical plate portion 2b. A stop projection 2c is provided to project in the length direction.

The door drop prevention plate 2 has a vertical plate portion 2
b, butted against the front surface of the vertical plate portion 4b of the protruding portion 4, and the locking protrusion 2c is fixed to the fixing groove 6
The vertical plate portion 2b is positioned in a predetermined direction and position by engaging with the opening 6a of the vertical plate portion 4b of the projecting portion 4.
b is fixed to the horizontal plate 2a by screws 13.
Is configured to be provided above the hanger roller 8.

[0043]

Since the present invention is constructed as described above, according to the first aspect, the door is prevented from being separated by a separate member with respect to the main body base by means of a hanger roller. Since it can be incorporated even after being hung on the base rail, the hanger bracket can be temporarily attached to the door in advance without being restricted by the door drop prevention plate. Can be performed easily and quickly, and the safety of hanging the door at a high place can be improved, and even if a locking device is incorporated, the locking plunger portion does not require a door drop prevention plate. By calculating the location corresponding to the locking plunger in advance and cutting the door fall prevention plate, it can be incorporated, and the hanger roller also It can be incorporated in a position where it does not occur.

In addition, the door drop-off prevention mechanism according to the second aspect of the present invention can not only be installed after the door is hung, but also install the drop-off prevention plate which does not cause any trouble when the locking device is installed. The positioning locking groove and the means for fixing the first and second fixing brackets with screws can be performed accurately and firmly.

According to the third aspect of the present invention, it is possible to make the door drop-out prevention plate extremely simple, easy, and excellent in re-movability by rotating and rotating only the drop-out prevention plate fixing cam. According to the fourth aspect of the present invention, the locking groove of the projecting portion can be used for positioning and fixing the door falling prevention plate and can be fixed only with screws, so that the configuration is extremely simple. , And can be provided at low cost.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional side view showing a use state of an embodiment showing a mechanism for preventing a hanger roller from falling off in a door device of the present invention.

FIG. 2 is a front view of a usage state in which a part of the embodiment is cut away.

FIG. 3 is an exploded perspective view showing the main body base and a part of the door drop-prevention plate of the embodiment in a cutaway manner.

FIG. 4 is a partially cutaway front view of the entire automatic door device showing a use state of the embodiment.

FIG. 5 is a partially cutaway plan view showing another embodiment of the falling-off prevention mechanism according to the present invention.

FIG. 6 is a partial vertical sectional side view of a use state showing the embodiment.

FIG. 7 is a longitudinal sectional side view showing a different embodiment according to the present invention, in which a part of a use state is cut away.

FIG. 8 is a vertical sectional side view of a partly cutaway showing an example of a drop-off prevention mechanism in a conventional automatic door device.

FIG. 9 is a vertical sectional side view of a partially cut-out state of use showing another example of a fall-off prevention mechanism in a conventional automatic door device.

FIG. 10 is a front view of a partially cutout in a use state showing the same mechanism.

FIG. 11 is a vertical sectional side view showing a different example of a fall prevention mechanism in a conventional automatic door device in a use state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body base 1d Base rail 2 Door fall prevention plate 2a Horizontal plate part 4a Horizontal plate part 2b Vertical plate part 4b Vertical plate part 2c Locking protrusion 7 Locking protrusion 3 Door 4 Projection part 5 Locking groove for positioning Article 5c Bottom wall 6 Recessed groove for fixing 8 Hanger roller 10 Seamless plate 11 First fixing metal 12 Second fixing metal 13 Screw 19 Drop fixing plate fixing cam 20 Vertical axis C Width D Width

Claims (4)

(57) [Claims] 1. A base having a base rail extending along a blind board or the like, a main body base on which a door is hung freely through a hanger roller, and a door falling-off prevention plate, On the base, at a protruding portion continuously provided on the base side upper portion of the base rail, a positioning locking groove of the door drop prevention plate is formed in the length direction,
The door drop prevention plate is formed along the length direction of the main body base, and has a locking projection that can be locked to the positioning locking groove on the base end in the lateral width direction. Projecting in the direction, the falling-off prevention plate is engaged with the locking projection groove for positioning of the projection, and is fixed to the projection by fixing means. And a mechanism for preventing the hanger roller from falling off in the door device, wherein the mechanism is disposed adjacent to the upper part of the hanger roller and in parallel with the base rail. 2. The base according to claim 1, further comprising a base rail along a blind board or the like, the base rail having a main body base on which a door is hung movably via a hanger roller, and a door drop prevention plate. A positioning member, which is located at an upper portion and a substantially intermediate portion of the front surface of the vertical plate portion of the protruding portion connected to the upper portion on the base side of the base rail, and is used for a door drop prevention plate that opens forward, respectively. The recess groove and the groove having a substantially convex cross-section are provided in the length direction, while the door drop prevention plate extends in the length direction of the main body base and extends in the width direction. At the base end, a locking projection having a substantially L-shaped cross section is formed in the length direction so as to be lockable with the positioning locking groove, and the door drop prevention plate is provided with the positioning lock. On the front surface of the locking projection engaged with the groove, and on the front surface of the vertical plate portion of the projection. By fixing the first fixing fitting butted and the second fixing fitting engaged with the concave groove by screwing, the first fixing fitting is parallel to the base rail in a state close to the upper part of the hanger roller. A mechanism for preventing falling of a hanger roller in a door device, wherein the mechanism is disposed in a door device. 3. A base rail having a base rail along a blind board or the like, the base rail having a main body base on which a door is hung freely through a hanger roller, and a door drop prevention plate, On the base, on the upper surface of the horizontal plate portion of the protruding portion connected to the upper part of the base side of the base rail, a positioning lock for a door falling prevention plate having an upward opening and a substantially convex cross section. A concave groove is recessed in the longitudinal direction, while the door drop prevention plate extends in the longitudinal direction of the main body base, and has a substantially U-shaped cross section at the base end in the lateral width direction. The locking projections are bent in the length direction, and the bottom wall inside the positioning locking groove has a falling-off plate fixing cam having a different width in the two axial directions rotatable by the vertical axis. The door drop prevention plate is pivotally supported, and the locking protrusion is formed by the drop prevention plate fixing cam. The hanger roller of the door device, wherein the hanger roller is disposed close to the top of the hanger roller and in parallel with the base rail by being pressed and locked to one side of the positioning locking groove. Fall prevention mechanism. 4. A base rail having a base rail along a blind board or the like, the base rail having a main body base on which a door is hung movably via a hanger roller, and a door drop prevention plate, On the base, a concave groove having a substantially convex cross-sectional shape, which is open in a forward direction, is formed on the front surface of a projecting portion continuously provided on the base side upper portion of the base rail, and is formed in a longitudinal direction. On the other hand, the door drop-prevention plate is extended in the longitudinal direction of the main body base by a horizontal plate portion and a vertical plate portion so as to have an L-shaped cross section substantially in the opposite direction, and a surface of the vertical plate portion. A locking projection that can be engaged with the groove is projected in the length direction, and the door drop prevention plate engages the locking projection with the fixing groove. , The vertical plate portion is arranged in contact with the front surface of the projecting portion, and the vertical plate portion is screwed to the projecting portion. A mechanism for preventing the hanger roller from dropping off in the door device, wherein the hanger roller is fixed and disposed in parallel with the base rail in a state close to the upper portion of the hanger roller.