JP4668715B2 - Shutter curtain guide structure - Google Patents

Description

  The present invention relates to a guide structure of a shutter curtain that is disposed in a shutter case, for example, at the upper end of a guide rail and guides the guide rail and the shutter case when the shutter curtain is opened and closed.

  In general, the guide rail that guides the left and right edges of the shutter curtain that is opened and closed by moving up and down, as shown in a part of the figure in the following patent document, has a funnel shape toward the upper side of the guide rail upper end. A widening guide member is integrally formed and guides the change in the moving direction due to the change in the diameter of the shutter in the case when the shutter curtain is wound up and taken out from the shutter case, and the winding and feeding out are guided. A defective state is prevented, and winding and feeding can be performed in an always aligned state, and the guide member is disposed in the shutter case as shown in the figure.

  However, the guide member having the above structure has a shape that is expanded in the shutter case with respect to the slit that is the entrance / exit portion of the shutter curtain formed on the bottom surface on the guide rail installation side of the shutter case. Therefore, the construction procedure is such that the guide rail is arranged before the bottom surface of the shutter case and the slit are constructed. That is, when the guide rail is assembled, if the slit is constructed first, the guide member cannot be mounted. In addition, when a malfunction occurs as a shutter device and repair / replacement work is performed, it is not possible to replace only the guide rail, and there are cases where restrictions are imposed during such work.

  In the case of a so-called continuous shutter in which shutter curtains are arranged side by side, the guide rail that guides and supports the shutter curtain is an intermediate guide that supports the side edge of the adjacent shutter curtain when the shutter curtain is released. The rail is configured to be removed, and if the funnel-shaped guide member is integral, it cannot be removed from the shutter case, and the guide member and the guide rail are required to be separate.

  Therefore, the present applicant has previously developed the guide member 101 having the structure shown in FIGS. 8 (a) and 8 (b). The guide member 101 is on both sides of a slit opened at the lower part of the shutter case (not shown), and a bottom plate 102 that is flange-coupled to the bottom surface of the shutter case. And a guide portion 105 processed into a curved shape so as to face each other in a funnel shape from the upper part of the recess 104 to the inside of the shutter case, and the top portion of the guide rail 103. Is inserted into the recess 104 to form the guide rail 103 in a straight state so that the guide rail 103 can be detachably positioned with respect to the shutter case side.

  By the way, in recent shutter devices, a locking device is arranged in the middle in the height direction when the shutter curtain is closed, and the locking mechanism is moved in the width direction of the shutter curtain according to the locking and unlocking operations. Some of the curtains are locked by engaging substantially rake-like locking claws protruding in a hook shape provided at the tip of the locking mechanism on both side ends of the curtain with engaging pieces provided in the guide rail.

  FIGS. 9A and 9B show a slat 107 which is one constituent member of the shutter curtain provided with the locking mechanism 106 described above. In the figure, a locking device 108 linked to the locking mechanism 106 is arranged at the center in the width direction of the slat 107, and a thumb turn (not shown) is arranged on the indoor side, and a lock is used on the outdoor side. A substantially rake-like locking claw 106a projecting in a hook shape provided at the tip of the locking mechanism 106 by a moving operation is projected and retracted to engage with an engaging portion (not shown) provided in an inner back portion which becomes a groove bottom portion of the guide rail 103. Stopped and locked.

In addition, this locking mechanism uses the reverse biasing force of the spring, and when locking with the shutter curtain closed, the spring protrudes the locking pawl by turning the lock or thumb turn completely in the locking direction. The spring is biased to the locked position by the biasing force of the spring. Conversely, when the key lock or thumb turn is turned in the unlocking direction, the locking claw is immersed, the spring biasing direction is changed, and the locking claw 106a is reversely biased in the unlocking direction, and is held in that state thereafter. The
Japanese Patent Laid-Open No. 10-148060 (FIG. 5)

  However, the locking claw 106a is unlocked from the engaging portion in the guide rail even when the spring is not completely reversed when the unlocking operation is performed from the locked state when the shutter curtain is closed. For this reason, it may be determined that the unlocking operation can be unlocked without completely turning the key or thumb turn in the unlocking direction.

  If the shutter curtain is opened in such a state that the engagement of the locking claw is incomplete, the biasing direction of the spring may be displaced in the locking direction of the locking claw 106a due to vibration accompanying the upward movement. After passing through the engaging portion, the locking claw 106a protrudes within the guide rail, and the tip of the locking claw comes into contact with the bottom surface of the guide rail. Cause failure. However, when the shutter curtain is lifted and moved to the storage portion while the engagement of the engagement claw is incomplete, the guide member 101 has a leading end of the engagement claw 106a as shown in a circle in FIG. 8B. When the shutter curtain is raised, there is a risk of damaging the locking claw or damaging the locking claw or damaging the guide member. Since it cannot be stored when the key is caught, it has been necessary to re-operate the key and thumb turn to the fully unlocked position and then perform the shutter release operation again.

  Therefore, the present invention facilitates assembly work in order to solve the above-mentioned problems, and in particular, in the shutter curtain provided with the locking device, the interference between the guide member and the locking claw when it remains protruding. It is an object of the present invention to provide a shutter curtain guide structure which can prevent encroachment or damage during the shutter curtain opening / closing operation.

Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments.
The guide structure of the shutter curtain according to the first aspect of the present invention is disposed in a slit 1b formed in the shutter case 1 and through which the shutter curtain 3 enters and exits, and the shutter curtain 3 is disposed in the shutter case 1 with respect to the slit 1b. A shutter curtain guide structure for guiding at least one surface,
An upper end portion of a substantially U-shaped and wide groove-shaped guide rail 4 that is located at the end of the slit 1b and supports the edge of the shutter curtain 3 to guide the opening and closing operation of the shutter curtain 3 Connected to
A guide member 5 having a curved convex guide portion 9 extending from the vicinity of the edge of the slit 1b toward the inside of the shutter case 1 and expanding in a substantially funnel shape with respect to the slit width. Prepared,
The guide portion 9 of the guide member 5 is disposed away from the inner back portion 4 b of the guide rail 4 and is substantially continuously disposed in the inner and outer directions of the opening groove edge 4 d of the guide rail 4. It is characterized by being.
Furthermore, a substantially V-shaped inclined cut portion 4a is formed at the upper edge of the opening groove edge of the left and right pieces of the guide rail 4 , and the lower portion of the guide portion 9 of the guide member 5 is formed on the cut portion 4a . A downward hanging substantially wedge-shaped hanging portion 8a to be fitted is formed .

  The shutter curtain guide structure according to claim 2 is characterized in that at least one ridge 9a (9b) is formed in the guide portion 9 along a curved surface direction thereof.

  The guide structure of the shutter curtain according to claim 3, wherein the ridges are formed of a plurality formed in parallel to each other, the protruding height is high on the inner back portion 4 b side of the guide rail 4, and the groove opening side It is characterized by being low.

The guide structure of the shutter curtain according to claim 4, wherein the guide 4 member 5 having the guide portion 9 is applied to the outer portion of the guide rail 4 along the slit edge portion of the shutter case 1 and the shutter. A mounting plate 7 fixed to the surface of the case 1 is provided, and a space portion where the guide portion 9 does not exist is formed between the inner back portion of the guide rail 4 and the guide portion 9 where the hanging portion 8a is formed. It is characterized by being.

According to the shutter curtain guide structure according to claim 1, when the unlocking operation is performed, the locking claw is not in an immersive state, and the shutter curtain is opened in a state of protruding to the inner back side which is the groove bottom of the guide rail. Even when the operation is performed, when the guide rail is moved from one end of the guide rail to the shutter case, there is no portion that interferes with the locking claw, and problems such as generation of abnormal noise and damage can be avoided. Thereby, it is possible to prevent the occurrence of a failure or the like when the shutter curtain is opened or closed. In addition, the fitting structure between the guide rail cut part and the guide part hanging part makes the positioning and assembling work between the guide rail and the guide part easy and reliable, and the movement of the shutter curtain during the lifting operation is smooth. .

  According to the guide structure of the shutter curtain of the second aspect, the contact friction at the time of passing the shutter curtain with respect to the guide portion can be reduced by forming the ridge. In addition, due to the ridges, the guide portion does not have a simple surface shape, and the rigidity is improved. Thereby, the deformation | transformation of a guide part etc. are prevented.

  According to the guide structure of the shutter curtain of the third aspect, the protrusion on the inner back side of the guide rail comes into contact with the shutter curtain during normal opening / closing operation, and the shutter curtain winds on the groove opening side. It will come into contact when bent by. And, since the protrusion on the inner side of the guide rail that is in contact with the normal time is inside the guide rail as the appearance of the shutter curtain, wear and contact scratches are usually invisible parts, Impairing the appearance of the shutter curtain is reduced.

  According to the guide structure of the shutter curtain of the fourth aspect, in the open state in which the shutter curtain is fully accommodated, the draining plate provided at the lower end, for example, the lowermost end of the shutter curtain is an edge portion in the slit portion of the shutter case. It will contact the mounting plate portion without directly contacting the plate, so that the surface of the plate portion of the shutter case will not be soiled or damaged. That is, this mounting plate is configured as a door stop and serves as a reinforcement of the shutter case at this position.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. In the present embodiment, a shutter device configured to be opened and closed by moving the shutter curtain up and down will be described. 1 is a schematic side view showing an overall configuration of a shutter device according to the present invention, FIG. 2 is a plan view showing a single guide member, FIG. 3 is a rear view thereof, FIG. 4 is a side view thereof, and FIG. 6A and 6B are a side sectional view and a plan sectional view showing the relationship between the guide member, the guide rail and the locking device, and FIGS. 7A and 7B are the same guides. It is a schematic perspective view which shows the attachment relationship between a member and a guide rail.

  In FIG. 1, a slit 1 b is formed in the bottom 1 a on the guide rail installation side of the shutter case 1 having a rectangular cross section, and is wound around the outer periphery of a winding shaft 2 disposed at a substantially central position in the shutter case 1. The taken shutter curtain 3 is arranged so as to be able to descend and rise substantially vertically through the slit 1b. For example, the inside and outside of the building are partitioned by the shutter curtain 3.

  The lower end of the shutter case 1 in the width direction of the shutter case 1 is the tip of the guide case 4 on the shutter case 1 side of the guide rail 4 that is vertically disposed in the building frame and has a substantially U-shaped cross-section and has a substantially dovetail shape. A pair of guide members 5 that are detachably fitted at one upper end, are continuously fixed to the upper surface of the shutter case 1 so as to face the bottom surface of the shutter case 1, and the upper portion expands in a funnel shape.

  Further, a draining plate 6 having a substantially inverted T-shaped cross section is connected to the lowermost end, which is the extended end of the shutter curtain 3, and the shutter curtain 3 wound around the winding shaft 2 has a minimum diameter Mmin. The shutter curtain 3 is completely closed by closing the shutter curtain 3 at the maximum extended position to partition the interior and exterior, and in the state where the winding diameter is maximum Mmax, the shutter curtain 3 is fully opened and the draining plate 6 is It contacts the bottom 1a of the shutter case 1 and closes its slit 1b.

  The guide member 5 is a press-molded body made of a metal plate having a predetermined plate thickness, and is fixed along both edges of the slit 1b of the shutter case 1 as shown in FIGS. A door stop plate 7 as a mounting plate applied to each portion, and a recess formed upright on the upper front edge 7a of each door stop plate 7 and fitted to the side of the groove opening 4c that is the front side of the guide rail 4 8, a guide portion 9 formed in a curved convex shape that expands in a funnel shape by being paired with the upper portion of the concave portion 8, and a vertical guide raised vertically to the rear front edge 7 b of the door stop plate 7 As shown in FIG. 2 (in plan view), the concave portion 8 and the guide portion 9 have a space portion that is cut out at a position corresponding to the inner back portion 4b side. The door stop plate 7 and the vertical guide plate 10 are The one that is located outside the Doreru 4. Here, the guide member 5 is configured as a pair as described above, and the portions 7, 8, 9, and 10 are formed so as to correspond to both surfaces of the shutter curtain 3, that is, may be symmetrical. preferable.

  A substantially V-shaped cut portion 4a is formed at the upper edge of the groove opening 4c of the guide rail 4 so as to widen the groove opening 4c. In addition, a substantially wedge-shaped hanging part 8a is formed on the rear end side of the recess 8 corresponding to the cut part 4a so as to be continuous with the cut part 4a. The hanging portion 8a enables a smooth transition in both directions between the guide rail 4 side and the guide portion 9 side of the guide member 5 when the shutter curtain 3 moves up and down.

  A convex surface is formed on the guide surface which is a curved convex surface of the guide portion 9, and in this embodiment, as shown in FIG. 2, the guide surface is composed of two parallel to each other and has a predetermined protrusion on the rear end side. A protrusion 9a having an amount d1 is formed, and a protrusion 9b having a protrusion d2 smaller than the protrusion 9b is formed on the tip side. Further, a reinforcing rib 9c that is bent is formed on the tip side with the ridge 9b as a ridge line so as to be continuous with the guide surface.

  The ridges 9a and 9b reduce the sliding contact area with the shutter curtain 3 when passing through the guide portion 9, reduce sliding resistance, and prevent the generation of abnormal noise such as contact noise. Further, these ridges 9a, 9b reinforce the guide portion 9 by forming the guide portion 9 in a substantially corrugated shape without making the shape of the guide portion 9 smooth, and by the reinforcing rib 9c formed to be bent. Also, the rigidity of the entire guide portion 9 is enhanced. In addition, the protruding item | line 9a which will be located in the inner back part side of the guide rail 4 is continuously formed with the drooping part 8a mentioned above, as shown in FIG.

  Further, the door stop plate 7 is formed with a locking claw 7c by being cut and raised at a substantially central portion of the plate surface. The locking claw 7c is a positioning claw for installing a lintel that forms a slit 1b through which the shutter curtain 3 enters and exits. In addition, you may comprise this latching claw 7c so that this guide member 5 may be fixed to the bottom part 1a surface of the shutter case 1 by crimping to the bottom part 1a of the shutter case 1. FIG.

  FIG. 6 is a side view and a plan view showing the relationship between the guide member 5, the guide rail 4, and the locking mechanism. Of the plurality of slats 3a constituting the shutter curtain 3, a locking device (not shown) is disposed at a predetermined distance from the floor in the height direction in the closed state at the center in the left-right width direction of the slats 3a. The The locking device is disposed on the back side, which is the indoor side of the slat 3a, a key hole is exposed on the outdoor side, and a locking mechanism 20 that interlocks according to the locking / unlocking operation of the locking device extends along the longitudinal direction of the slat 3a. Arranged. The distal end of the locking mechanism 20 is located at the end of the slat 3a, and includes, for example, a substantially rake-shaped locking claw 20a protruding in a bowl shape.

  With such a configuration, when the unlocking operation is performed using the combined key or thumb turn from the locked state, the locking mechanism 20 is not completely unlocked, as shown in FIG. When the claw 20a is projected without being retracted by the reverse biasing force of the spring and the shutter curtain 3 is opened, the locking claw 20a remains in the inner back portion 4b of the guide rail 4, The guide part 9 is not arranged in the inner back part 4b, and the guide part 9 is positioned away from the inner back part 4b, and does not interfere when the shutter curtain 3 is wound into the shutter case 1, Causes of malfunctions such as generation of abnormal noise, collision, damage, and poor entrainment due to this are prevented in advance. Further, when the shutter curtain 3 is moved up and down, as shown in FIG. 6A, the shutter edge 4 d, which is the edge portion of the groove opening 4 c of the guide rail 4, and the hanging portion 8 a and the convex portion 9 a of the guide member 5, as shown in FIG. The contactable part with the curtain 3 is substantially continuous, and the up and down movement of the shutter curtain 3 is made smooth.

FIG. 7 is a schematic perspective view of the guide member 5 and the guide rail 4 described above.
As shown in FIG. 7A, the pair of guide members 5 are fixed in advance facing the end of the slit 1b in the bottom 1a of the shutter case 1, and from this state, FIG. ), The guide rail 4 can be positioned and fixed to the shutter case 1 via both guide members 5 by attaching the upper end of the guide rail 4 from below so as to fit between the guide members 5. .
At this time, as shown in FIG. 1, the upper end of the guide rail 4 is fitted into the guide member 5, and this upper end requires a predetermined length as an allowance as appropriate.

  With such a configuration, since the guide rail 4 can be easily assembled, the workability can be greatly improved, and it is also easy to remove only the guide rail 4, and the setup during assembly and disassembly as a shutter device is possible. It becomes possible to eliminate the restriction of the shape and greatly improve the workability.

  In the above-described embodiment, the case where the guide member 5 of the present invention is applied to each guide rail 4 positioned at the left and right ends of the shutter curtain 3 has been described. Needless to say, the present invention can be applied to a combination with the guide rail, and the same effect can be obtained by providing it in the shutter case 1 with the same configuration as described above. In particular, in the case of such a continuous shutter, the guide member combined with the intermediate guide rail may have a structure in which symmetrical guide members 5 are connected in the width direction of the shutter and integrated.

  In the above-described embodiment, the configuration example in which the guide member 5 is disposed so as to be paired at the end portion with respect to the slit 1b of the shutter case 1 has been described. However, at least the shutter curtain 3 has the shutter case. What is necessary is just to set it as the structure arrange | positioned by the one-side structure in the side close | similar to the storage direction in 1, or to be arrange | positioned in the position corresponding to the direction which the latching claw 20a front-end | tip of the locking mechanism 20 protrudes. In other words, it is not necessary to configure a pair.

Further, in the above-described embodiment, the example in which the opening / closing direction of the shutter curtain 3 is set as the up / down direction and the shutter curtain 3 is opened / closed by moving up / down is described. However, the opening / closing direction of the shutter curtain 3 is not limited to the up / down direction. Further, the present invention may be applied to a shutter device having a configuration in which the other direction, for example, the left and right lateral direction, the oblique direction, and the rising is closed and the lowering is opened.
In the above-described embodiment, the shutter curtain 3 has been described with respect to an example including a plurality of slats 3a. However, the shutter curtain 3 may include a plurality of slats 3a connected to each other. The pipe-shaped member may be connected, or may be configured by a single or a plurality of panels, a sheet-like material, a screen-like material, a net-like shape, or the like, or a combination thereof. It is good as a thing.

It is explanatory drawing which shows the whole structure of the shutter apparatus which concerns on this invention. It is a top view which shows a guide member simple substance. It is the same rear view. It is the same side view. It is the sectional view on the AA line in FIG. (A), (b) is the side sectional view and plane sectional view which show the relationship between a guide member, a guide rail, and a locking device. (A), (b) is a simplified perspective view which shows the attachment relationship of the guide member and a guide rail. (A), (b) is the side sectional view and plane sectional view which show the relationship between the guide member which the present applicant developed previously, a guide rail, and a locking device. (A), (b) is the center sectional view of the side protrusion type locking device provided in the slat, and the plane sectional view in an end surface.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Shutter case 1b ... Slit 3 ... Shutter curtain 3a ... Slat 4 ... Guide rail 4b ... Inner part 7 ... Mounting plate 8 ... Recessed part 9 ... Guide part 9a, 9b ... Projection strip 20 ... Locking mechanism 20a ... Locking claw

Claims (4)

A shutter curtain guide structure that is formed in a shutter case and is disposed in a slit through which the shutter curtain enters and exits, and guides at least one surface of the shutter curtain in the shutter case with respect to the slit,
It is located at the end of the slit, and is connected to the upper end of a substantially dovetail-shaped guide rail that extends substantially in a U shape and supports the edge of the shutter curtain to guide the opening and closing operation of the shutter curtain,
A guide member that extends from the vicinity of the edge of the slit toward the inner side of the shutter case and has a curved convex guide portion that expands in a substantially funnel shape with respect to the slit width length,
The guide portion of the guide member is disposed away from the inner back portion of the guide rail, and is disposed substantially continuously in the inner and outer directions of the opening groove edge of the guide rail,
A substantially V-shaped inclined cut portion is formed at the upper edge of the opening groove edge of the left and right pieces of the guide rail, and a downward substantially wedge-like shape that fits into the cut portion is formed at the lower portion of the guide portion of the guide member. A shutter curtain guide structure characterized in that a hanging part of the shutter curtain is formed .   The guide structure of the shutter curtain according to claim 1, wherein at least one ridge is formed in the guide portion along a curved surface direction thereof.   The protrusion is composed of a plurality of protrusions formed in parallel with each other, and the protrusion height is high on the inner back side of the guide rail and lower on the groove opening side. Shutter curtain guide structure. The guide member having the guide portion includes a mounting plate that is applied to the outer portion of the guide rail along the slit edge of the shutter case and is fixed to the surface of the shutter case . The space part in which the guide part does not exist is formed between the back part and the guide part in which the hanging part is formed . Shutter curtain guide structure.

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