JP2017095934A - Latch lock for building shutter apparatus, and method for assembling the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an unusual noise from being generated because a latch bar 7 of a latch lock 5 provided for a shutter curtain 1 for opening/closing an opening of a doorway and the like abuts on a groove surface of a guide groove 10.SOLUTION: A heat-shrinkable tube 11 before heat shrinkage, which is externally fitted in a loosely-fitted manner to a latch bar 7, is externally fitted in an intimate contact manner to the latch bar 7 by being shrunk by heating. Thus, generation of an unusual noise is prevented by avoiding the latch bar 7 directly abutting on a groove surface.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a technical field of a latch lock and a method of assembling a latch lock in an architectural shutter device built in an opening such as a doorway of a building.

Today, an architectural shutter device for opening and closing an opening can be built by raising and lowering the shutter curtain at an opening such as an entrance / exit. In this case, the shutter curtain is closed with the shutter curtain closed. A latch lock may be provided to prevent inadvertent lifting. As such a latch lock, a latch bar is projected and moved in the left-right direction by operating a lock operation tool (lock operation lever) on the indoor side surface of the seat plate slat, whereby the latch provided at the tip of the latch bar is attached to the guide rail. The shutter curtain is prevented from ascending by adopting a structure in which the latch receiver is locked from the lower side (see, for example, Patent Document 1). By the way, in this structure, a C-shaped guide groove having an opening on the indoor side is formed on the indoor side surface of the seat plate slat, and a latch bar is provided in the guide groove. In this case, when the wind blows, the latch bar However, an unpleasant impact sound generated when hitting the bottom of the guide groove is reduced by making the latch bar C-shaped and reducing the contact area of the latch bar with the guide groove. However, this has the problem that although the contact area between the latch bar and the bottom surface of the groove is reduced, there is still a contact portion, so that the generation of collision noise cannot be effectively eliminated.
On the other hand, the thing which provided the buffer member in the slat side surface of the latch bar and avoided the direct collision with a latch bar and a slat is proposed (for example, refer patent document 2).

Japanese Patent No. 4773164 Japanese Patent No. 5058502

  However, this prevents the buffer member from inadvertently moving or coming off by causing the buffer member to bite the lip portion provided on the latch bar and bonding the buffer member and the latch bar with an adhesive. However, the work is not easy because it requires the work to bite in the lip and the adhesive work, and the adhesive peels off when the shutter curtain opens and closes, or when the shutter is exposed to vibration or deterioration of the adhesive. Therefore, there is a problem that the durability is inferior, and there is a problem to be solved by the present invention.

The present invention was created with the object of solving these problems in view of the above circumstances, and the invention of claim 1 is an architectural shutter in which a shutter curtain opens and closes an opening / closing portion such as an entrance / exit. In the apparatus, the shutter curtain is provided with a latch lock that moves the latch bar in the left-right direction by operating the operation tool, and the latch at the end of the latch bar is detachably locked to the latch receiver provided on the guide rail. A latch lock in an architectural shutter device characterized in that an abnormal noise is prevented by closely fitting a loosely-fitted buffer material contracted to the latch bar.
The invention according to claim 2 is the latch lock in the architectural shutter device according to claim 1, wherein the cushioning material is a heat shrinkable material.
The invention according to claim 3 is the latch lock in the architectural shutter device according to claim 1, wherein a plurality of the heat-shrinkable materials are provided in a scattered state.
The invention according to claim 4 is the latch lock in the architectural shutter device according to claim 2 or 3, wherein the heat shrinkable material is a heat shrinkable tube.
According to a fifth aspect of the present invention, in the architectural shutter device in which the shutter curtain opens and closes the opening / closing opening and the like, the latch bar is moved in the left-right direction by operating the operation tool, and the latch at the tip of the latch bar is the guide rail. In order to provide a latch lock that can be detachably locked to the latch receiver provided on the door, the buffer material is loosely fitted on the latch bar, and then the buffer material is contracted to closely contact the latch bar. The latch lock assembling method in the architectural shutter device is characterized in that an abnormal noise is prevented by externally fitting in a shape.

According to the first or fifth aspect of the present invention, the noise generated when the latch bar comes into contact with the shutter curtain can be prevented by the cushioning material that is externally attached to the latch bar in a state of being in close contact with the latch bar.
By setting it as invention of Claim 2, since a shock absorbing material will be a heat shrink material, it will become easy to carry out the external fitting and contact | adherence to the latch bar of a shock absorbing material.
By setting it as invention of Claim 3, the usage-amount of a heat shrink material can be reduced and cost reduction can be aimed at.
According to the invention of claim 4, by using the heat shrinkable material as the heat shrinkable tube, the entire circumference of the latch bar is externally fitted to the heat shrinkable tube, so that the generation of abnormal noise can be efficiently reduced.

It is a front view of a shutter device. It is a principal part rear view of a shutter curtain. It is a principal part side view of a shutter curtain. It is a front view of a latch bar. It is effect | action explanatory drawing which shows the shrinkage | contraction before and after heat shrinkable tube.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a shutter curtain. The shutter curtain 1 is wound around a winding drum 2 provided on the ceiling, and is guided by guide rails 3 provided on the left and right sides of the opening to open and close, etc. Are both conventional.

The seat lock (seat plate slat) 4 provided at the lowermost end of the shutter curtain 1 is provided with a latch lock 5 in which the present invention is implemented. The latch lock 5 is an operation lever (operating tool) attached to the seat plate 4. 6) and a latch bar 7 linked to the operation lever 6 and moved in the left-right direction by the operation of the operation lever 6, and provided at the tip of the latch bar 7, and the operation lever 6 is locked when the shutter curtain 1 is fully closed. When operated to the position, the latch 9 is provided with a latch 9 that is locked to a latch receiver 8 provided on the guide rail 3 and prohibits the opening movement of the shutter curtain 1. Note that the latch bar 7 and the latch 9 may be integral or separate.
The latch bar 7 is provided on the indoor side surface of the seat plate 4 and is slidably fitted in the guide groove 10 that is open on the indoor side. In the present embodiment, the C is open on the groove bottom side of the guide groove 10. It is formed of a mold material.

The latch bars 7 are externally fitted in close contact with the heat-shrinkable tubes 11 that are scattered at appropriate intervals. The heat-shrinkable tube 11 is dimensioned so that the latch bar 7 is loosely fitted before heat shrinkage, and the heat-shrinkable tube 11 before heat shrinkage is loosely fitted to the latch bar 7, When the heat shrinkable tube 11 is heated by a heating tool 12 such as a heater, the heat shrinkable tube 11 is heat-shrinked so as to be tightly fitted to the latch bar 7, thereby the groove surface of the guide groove 10. On the other hand, the heat shrinkable tube 11 is in direct contact (sliding contact), so that generation of abnormal noise due to metal contact is prevented. In this case, the heat-shrinkable tube 11 serves as a cushioning material and fits tightly around the entire periphery of the latch bar 7, so that the heat-shrinkable tube 11 is attached to the surface of the latch bar 7 so as to be even (smooth) and difficult to slide. Since it can abut against the entire inner peripheral surface of the guide groove 10, the generation of abnormal noise can be prevented more efficiently.
The heat-shrinkable tube 11 is preferably made of a resin material such as polyolefin, fluororesin, silicone resin, or polyvinyl chloride as a material, and has excellent flame resistance (fire resistance).

  In the present embodiment configured as described, the opening can be opened and closed by raising and lowering the shutter curtain 1, but when the operation lever 6 is operated to the locked position when the shutter curtain 1 is fully closed, the latch bar 7 is moved outward in the left-right direction. Accordingly, the latch 9 is engaged with the latch receiver 8 from below and is locked.

  In this way, the latch bar 7 moves to the left and right in the guide groove 10. Since the heat-shrinkable heat-shrinkable tube 11 is in close contact with the latch bar 7, for example, assuming that the latch bar 7 swings back and forth, the guide groove Since the heat-shrinkable tube 11 is in contact with the groove surface 10, unpleasant noise (metal sound) is not generated, and it becomes quiet.

  Moreover, since the heat shrinkable tube 11 is loosely fitted to the latch bar 7 before the heat shrinkage, the outer fitting work is easy, and the heat shrinkable tube 11 is in close contact with the latch bar 7 by the heat treatment by the heating tool 12. Since it shrinks, the work of assembling the heat shrinkable tube 11k is also simplified.

In addition, since a plurality of the heat-shrinkable tubes 11 are provided on the latch bar 7 in a scattered state, the heat-shrinkable tubes 11 can be made shorter than the case where they are provided over the entire length, and the cost can be reduced.
Moreover, since the heat shrinkable tube 11 can be attached with the latch bar 7 removed, the heat shrinkable tube 11 can be attached later to an existing one, and can be easily replaced when worn out.

In addition, this invention is not limited to the said embodiment, As a latch lock, it can implement as what was provided not in the seat board but in the slat of the up-down direction middle.
Further, the cushioning material is not limited to the heat-shrinkable material, and may have, for example, rubber elasticity, and in this case, the cushioning material is free from the one that is forcibly expanded against the rubber elasticity. After fitting, it is contracted by releasing the expansion, and is brought into close contact.
Further, when the cushioning material is a heat shrinkable material, the shape is not limited to a tube, and the shape is not particularly limited as long as the material is heat-shrinkable and closely fit, such as a C-shape.
As the cushioning material, an adhesive may be applied to the inner surface, and in this way, inadvertent movement of the cushioning material is further prevented. Moreover, it is better that the cushioning material has a slippery surface.
Further, in the above-described embodiment, the latch groove is fitted in the guide groove so as to be movable left and right. However, the present invention is not limited to this, and a C-shaped latch band on the slat has an appropriate interval on the left and right. Can be attached to the latch band, and the latch bar can be guided so as to be movable in the left-right direction. Can be attached to either.

  INDUSTRIAL APPLICABILITY The present invention can be used as a latch lock in which abnormal noise is prevented from being generated in an architectural shutter device provided at an opening such as an entrance.

DESCRIPTION OF SYMBOLS 1 Shutter curtain 2 Winding drum 3 Guide rail 4 Seat plate 5 Latch lock 6 Operation lever 7 Latch bar 8 Latch receiver 9 Latch 10 Guide groove 11 Heat shrinkable tube

Claims (5)

In an architectural shutter device in which a shutter curtain opens and closes an opening / exit such as an entrance / exit, a latch bar is moved in the left / right direction by operating an operation tool, and a latch at the end of the latch bar is associated with a latch receiver provided on a guide rail. When providing a latch lock that can be detachably locked and locked, a loosely-fitted cushioning material is contracted on the latch bar to prevent the generation of abnormal noise. A latch lock in an architectural shutter device. 2. The latch lock in the architectural shutter device according to claim 1, wherein the cushioning material is a heat shrinkable material. The latch lock in the shutter device for building according to claim 1, wherein a plurality of heat shrink materials are provided in a scattered state. The latch lock in the architectural shutter device according to claim 2 or 3, wherein the heat-shrinkable material is a heat-shrinkable tube. In an architectural shutter device in which a shutter curtain opens and closes an opening / exit such as an entrance / exit, a latch bar is moved in the left / right direction by operating an operation tool, and a latch at the end of the latch bar is associated with a latch receiver provided on a guide rail. In order to provide a latch lock that is detachably locked and locked, after the buffer material is loosely fitted on the latch bar, the buffer material is contracted so that the latch bar is tightly fitted on the latch bar. A method of assembling a latch lock in an architectural shutter device, wherein sound generation is prevented.

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