JPH0742773U - Safety door - Google Patents

Abstract

(57) [Summary] [Purpose] A safety door for the entrance of materials, etc. on each floor of the building under construction that cannot be opened except during cargo handling. [Structure] Pillars 1 and 1 are erected on both sides of a carry-in port, a guide rail 9 is connected between upper ends of the pillars, and a lower rail 12 is connected between lower ends thereof. The safety door 20 also serves as a fulcrum for the guide rails. The safety door 20 is constituted by a plurality of door members 2 supported on the guide rails by a door member fixing metal fitting 6, and the safety door 20 is opened and closed by rotating a rope 13 connecting all the planned door members 2 with a handle 13. The safety door 20 is provided with a lock that is unlocked only when the elevator stops at the floor for cargo handling.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is a safety door provided at a carry-in entrance for carrying the above-mentioned materials and equipment (hereinafter simply referred to as materials) into the building under construction from the elevator when the materials and equipment are transported by the building construction elevator during building construction. Regarding

[0002]

[Prior art]

 When building a building, an elevator that moves up and down along the wall surface of the building will be installed to transport the necessary materials and equipment. The materials transported as described above are usually carried into the building under construction using the opening that will become a veranda after the building is completed. Further, necessary workers can enter and leave the building through the opening.

Therefore, the opening is closed by a safety door on a floor where the elevator is not carrying out cargo-handling work so as to prevent a danger due to material falling and a worker from falling.

In this type of conventional safety door, a free wheel is provided on a pin lever that connects the respective constituent members of the bellows type door, and an operator manually operates one end of the door to open and close the door. It is carried on the elevator parallel to the building wall. [Problems to be Solved by the Invention] In the conventional safety door having the above-mentioned configuration, an operator must move a considerable distance in parallel to the building wall surface at a high place when opening and closing the door, which is dangerous in operating the safety door. There was a contradiction.

The present invention has been made based on the above circumstances, and when the building is constructed so that the operator can open and close it without stopping the elevator at the required floor so that the worker does not move on the elevator carrier parallel to the building wall surface. Provide a safety door for the material loading entrance.

[0006]

[Means for Solving the Problems]

 The safety door of the present invention has pillars standing upright on both sides of the material entrance on the wall surface of the building under construction, connecting the upper ends of these pillars with guide rails connecting the lower ends with lower rails, respectively. A rope is stretched over a driving pulley and a driven pulley provided at each end of the guide rail, and a door main body is composed of a plurality of door member loads supported and guided by the rails and folded in a bellows shape. It is characterized in that a lock is provided to unlock the door body only when the elevator to that floor is stopped.

[0007]

[Action]

 The safety door of the present invention configured as described above is safe because it can be opened only when the elevator is stopped for the purpose of loading and unloading the floor. In addition, when opening and closing the safety door, it is not necessary for the worker to hold the safety door and move on the elevator carriage along the wall surface of the building, and it is sufficient to rotate the handle or turn the switch on and off. Improved safety can be seen.

[0008]

【Example】

 FIG. 1 is a front view of one embodiment of the present invention, FIG. 2 is an enlarged front view showing details of a lock portion thereof, FIG. 3 is a perspective view of a main part when shifting to an open (closed) state of the embodiment, and FIG. FIG. 5 is a plan view of the embodiment in the closed state, FIG. 5 is a plan view of the embodiment in the state of FIG. 3, FIG. 6 is a plan view of a main part of the embodiment in which the door is being opened, and FIG. FIG. 8 is a plan view of an essential part of the handling mechanism in the above-described embodiment, and FIG. 9 is a plan view of an essential part of a modified example of the above embodiment.

In these figures, pillars 1 and 1 are respectively provided upright at the end of the opening of an outer wall of a building (not shown). A guide rail 9 is provided between the upper ends of the pillar 1 and a lower rail 12 is provided between the lower ends thereof. It is fixed. The safety door 20 is made up of a plurality of door members 2 (13 in the figure) united by hinges 7 so that they can be folded and bent. The odd-numbered door members 2 serve as fulcrums for their upper sides. The door member fixing bracket 6 supports the guide rail 9, and the lower sides thereof are supported by the lower rail 12 by the fulcrum / door member fixing bracket 6. The fulcrum / door member fixing bracket 6 is provided on one side of the door member (the right end in the drawing). Further, a freely rotating wheel 8 engaged with the inside of the guide rail 9 is attached to the fulcrum / door member fixing fitting 6 provided on the upper side. A drive pulley 10 is provided at one end (the left end in the figure) of the guide rail 9, and a driven pulley 11 is provided at the other end (the right end). A rope 4 is stretched between these two pulleys, and the rope 4 and a door member at one end (the left end in the figure) of the safety door 20 are connected by a fixing metal fitting 3. Further, a door member restriction fitting 5 is provided on the upper side of the even numbered one of the door members 2 (FIG. 3). On the lower surface of the front end of the door member regulating fitting 5, a protrusion 5a is hung so as to project downward from a plane including each reciprocating running portion of the rope 4.

On the other hand, for example, a lock 14 is provided on the pillar 1 at the left end in the drawing (FIG. 2). The lock 14 has a doglegged lever 14a rotatably provided in a vertical plane near the upper end of the front surface of the pillar 1. A hook portion 14b is formed at the tip of the lever 14a and an elevator is provided at the base end. A roller 16 is provided which cooperates with an unlocking cam 15 provided on the (not shown) side. Further, a locking pin 17 is provided near the upper left end of the door member 2 at the left end in the drawing.

Further, the post 1 on the left side of the drawing is provided with a handle 13 for rotating the drive pulley 10 as described later. That is, as shown in FIG. 7, a drive wheel 13a is provided coaxially with the handle 13, the drive wheel 13a is connected to the idler 13c by a belt 13b, and the idler 13c is coaxially integrated with the drive pulley 10 by the belt 13d. 13e is connected. That is, when the handle 13 is rotated, the drive pulley 10 is rotated, and the rope 4 is driven in either direction depending on the rotating direction of the handle 13.

The operation of the safety door 20 of the present invention having the above structure will be described below. The safety door 20 on the floor which is not loaded and unloaded is closed as shown in FIG. At this time, the lock 14 has the hook 14b engaged with the locking pin 17 as shown by the solid line in FIG. 2, and the safety door 20 cannot be opened even if the handle 13 is rotated. If you are currently loading and unloading on that floor, the elevator (not shown) will be stopped on that floor. At this time, the cam 15 on the elevator side pushes the roller 16 to disengage the hook portion 14b from the locking pin 17. As a result, the safety door 20 can be opened by operating the handle 13. It should be noted that the door is momentarily unlocked even while the elevator is passing, but even if the handle 13 is rotated, the safety door 20 cannot be opened.

The operation of the door member restriction fitting 5 will be described with reference to FIGS. When the handle 13 is rotated in the reverse direction, the rope 4 is driven so that the upper running portion is directed to the left and the lower running portion is directed to the right, as shown by the arrow in the figure. The door member 2 and the fixing metal member 3 for fixing the door member 2 to the rope 4 start moving in the arrow direction while drawing an arc with the universally rotatable wheel 8 as a fulcrum, and the safety door 20 opens as shown in FIG. Assuming that there is no door member restricting metal fitting 5 attached to an even-numbered door member, the door member 2 is in the relationship of the fulcrum / door member fixing metal fitting 6 (fulcrum), the hinge 7, and the freely rotatable wheel 8 (power point). Will be in a straight line as shown by the dotted line in FIG. 5, and they will stick to each other, making it impossible to open the safety door 20.

As shown in FIG. 7, when the door member 2 is folded, the door member restricting metal member 5 is provided at an angle such that no contact occurs between the door member 2 and the tip of the door member regulating metal member 5 hangs on the rope 4. As shown in FIG. When the safety door is opened as shown in FIG. 5, the protrusion 5a of the door member restriction fitting 5 is hooked on the rope 4, and is guided by the guide rail 9 to make the hinge 7 easy to fold. As the freely rotatable wheel 8 advances, the door member 2 is smoothly folded as shown in FIG. 7 to open the safety door. The present invention is not limited to the above embodiment. For example, the motor drive indicated by M in FIG. 3 may be performed without manually rotating the drive pulley 10. Further, as shown in FIG. 9, if the rope 4 between the drive pulley 10 and the driven pulley 11 is used as a shackle and separate safety doors are attached to both sides of the intersection of the ropes 4, both sides can be opened. It can be a safety door.

[0015]

As described above, the safety door of the present invention is safe because it can be opened only when the elevator is stopped for the purpose of loading and unloading the floor. In addition, when opening and closing the safety door, it is not necessary for the worker to carry the safety door and move on the elevator carriage along the wall surface of the building; it is sufficient to rotate the handle or turn the switch on and off. The improvement of safety can be seen.

[Brief description of drawings]

FIG. 1 is a front view of one embodiment of the present invention.

FIG. 2 is an enlarged front view showing details of the lock portion.

FIG. 3 is a perspective view of an essential part when shifting to an open (closed) state of the embodiment.

FIG. 4 is a plan view of the embodiment in a closed state.

FIG. 5 is a plan view of the embodiment in the state of FIG.

FIG. 6 is a plan view of the main part of the embodiment in which the door is being opened.

FIG. 7 is a plan view of an essential part in a state where the door is completely opened.

FIG. 8 is a schematic perspective view of a handling mechanism in the embodiment.

FIG. 9 is a plan view of a main part of a modified example of the above embodiment.

[Explanation of symbols]

 1 ………… Pillar 2 ………… Door member 3 ………… Fixing metal fitting 4 ………… Rope 5 ………… Door material regulating fitting 6 ………… Support point and door fixing fitting 7 ……… Hinge 8 ………… Free rotation Wheels 9 ... Guide rails 10 ... Drive pulleys 11 ... Driven pulleys 12 ... Lower rails 13 ... Handles 14 ... Locks 15 ... Cams 16 ... Rollers 17 ... Locking For pin

Claims (1)

[Scope of utility model registration request] 1. Pillars are erected on both sides of a material entrance on a wall surface of a building under construction, and guide rails are connected by connecting upper ends of these pillars with lower rails by connecting lower ends thereof. A rope is wound around a driving pulley and a driven pulley provided at each end, and a door main body is constituted by a plurality of door member loads supported and guided by the rails and folded in a bellows shape, and one of the pillars is connected to the floor. A safety door having a lock for unlocking the door body only when the elevator is stopped.