JPH0532699U - Opening blocking device - Google Patents

Abstract

(57) [Abstract] [Purpose] It is non-combustible and can reliably block even if you inadvertently extend your hands or feet. Also, you can smoothly move the blocking net up and down to completely open the opening. Allow it to be closed. [Structure] A substantially rhombic front face that can be rolled up and unwound by vertically arranging metal line elements 1 formed in a corrugated polygonal shape and running in the horizontal direction and hooking each other at respective bent portions 2 It is possible to wind up and unwind the rhombus net 3 by forming the rhombus net 3 having the unit pattern of No. 3 and installing the winding shaft 4 for attaching the upper side portion of the rhombus net 3 above the opening where blocking is required. And a lower rod 5 attached to the lower side of the rhombus net 3 for blocking the opening.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a blocking device for opening and closing an opening provided in a construction site, a garage, etc.

[0002]

[Prior Art]

 This type of openable / closable shutoff device has been publicly known, and in many cases it opens / closes in the left / right direction and opens / closes in the up / down direction. As shown in the figure, it is possible to make a simple structure in which the mesh shield is folded up by the guide reinforcing rod and folded up.

However, the reticulated shield is disadvantageous when nonflammability is required. In the vicinity of the opening of a lift used at a construction site, etc., it is difficult for an accident to occur if you accidentally stretch your hand or foot, so regardless of the will of the person, you cannot stretch your hand or foot in a dangerous direction. It is desired to have such a structure.

[0004]

[Problems to be solved by the device]

 The present invention has been made in view of the above points, and its problem is that it has non-combustibility, and even if it accidentally stretches out the hand or foot, it can be cut off without fail. It should be possible to raise and lower it to completely close the opening.

[0005]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention arranges vertically-moving metal wire elements 1 formed in a corrugated polygonal shape in a vertical direction and hooking them at respective bent portions 2 to form a substantially front rhombic shape. Forming a diamond-shaped net 3 having the unit pattern, and installing a winding shaft body 4 rotatable around a horizontal axis on the upper part of the opening requiring shutoff. By attaching the upper side portion and winding up and rewinding the winding shaft 4, the opening can be opened and closed, and the lower rod member 5 that keeps the lower side portion of the rhombus net 3 substantially horizontal and makes the net a vertical surface is provided. This means that it is attached to the lower side.

[0006]

【Example】

 A description will be given below with reference to the drawings. The drawings relate to a device installed at a construction site for opening and closing the entrances and exits of construction lifts and material carrying entrances.

The diamond-shaped net 3, which is a breaking means, is a non-combustible material made of metal having a substantially rhombic unit pattern on the front surface. The metal wire elements 1 formed in a corrugated polygonal line are arranged vertically. , The flat nets are stretched in the vertical direction by being hooked together at the respective bent portions 2. Since the hooking points 14 locked to each other are aligned in a line in the horizontal direction (FIG. 2), they can be wound around the horizontal axis and unwound. The metal material of the wire element 1 is not particularly limited, but a stainless steel wire is the best in terms of strength, durability, fire resistance and the like.

Although such a net itself is known and provided at a relatively low price, it is originally a material for tensioning a fence and is not wound or unwound. There is a problem that is not suitable for seed use. For example, it is desirable that the corrugated line elements 1 are hooked to each other at the bent portions 2, but there is a problem that the line elements 1 overlap with each other when they are rolled up and unwound.

Therefore, the rhombus net 3 of the present invention is provided with stringers 6 extending from the upper end to the lower end, which vertically extend by sewing the front side and the back side of the line elements 1 forming the unit pattern (see FIG. 3). .. The stringer 6 is made of a strip-shaped metal material such as a strip of iron or the like so that flexibility for winding and unwinding and rigidity or contact resistance for preventing the upper and lower line elements 1, 1 ... Wires are used.

One or more such stringers 6 are interposed at appropriate places, and the upper and lower ends thereof are fixed to the winding shaft body 4 or the lower rod 5 which will be described later. Reference numeral 15 is an end portion reinforcing member of the rhombus net 3, which is made of wires and is vertically attached to both left and right sides of the rhombus net 3, and is attached by hooking the end portion of the wire element 1.

The winding shaft body 4 is rotatably installed on the upper part of the entrance and exit of a construction lift requiring shutoff around a horizontal axis, and the upper side part of the rhombus net 3 having the above structure is mounted. Be done. The winding shaft body 4 according to the embodiment has several winding rings 17 fixed at intervals in the axial direction of the central rotating shaft 16 (Fig. 1), and each ring 17 has its outer periphery wound. The diamond-shaped net 3 having a core diameter is wound into a cylindrical shape. Reference numeral 18 is a connecting member for connecting the ring 17 and the rotary shaft 16, and 19 is a net mounting rod, which is a rod-shaped member in the axial direction and is fixed to each ring 17.

The diamond-shaped net 3 is attached to the winding shaft body 4 by connecting the upper side of the net to the attachment rod 19 with a linear attachment member 8. The attachment member 8 connects the bent portion 2 of the line element 1 on the upper side portion to the attachment rod 19. Therefore, in addition to the method of binding each piece of wire or cord with a short piece that is cut to an appropriate length one by one, while bending the long mounting member 8 around the mounting rod 19 of the winding shaft body 4 in a spiral shape. The method of hanging the part 2 is adopted (Fig. 2).

A lower rod 5 is attached to the lower side of the diamond net 3. As for the attachment of the rod 5 to the lower side of the net, the above-described method of attaching the upper side of the net to the winding shaft body 4 can be used as it is (FIG. 2). The lower rod 5 serves as a ruler for keeping the lower side of the net substantially horizontal and as a weight for making the net surface vertical.

Further, a rigid intermediate rod 7 that runs in the horizontal direction (width direction) is attached to the intermediate portion of the rhombus net 3 integrally with the rhombus net 3. The rod or rhombus net 3 is wound up and rewound on a winding shaft body 4, and is connected to the net surface by a mounting member 8 similar to the lower rod 5.

The winding shaft body 4 is wound up by a motor 10 connected to a central shaft 16 and is rotationally driven for rewinding. The drive system of the motor 10 also rotates the rotary shaft 11 of the control system, and the mover 12 screwed onto the rotary shaft 11 cannot rotate due to the restriction portion 21 such as an elongated hole. When the rotary shaft 11 rotates in one direction, the mover 12 moves on the axis in one direction, and when it rotates in the opposite direction, the mover 12 moves on the axis in the opposite direction. Two detection means 22 and 23 are arranged in the moving range of the moving element 12, and these detect the upper and lower limits of winding of the diamond-shaped net 3 and define the switches for controlling the operation of the motor 10. 13 is formed (FIG. 7).

On the left and right sides of the rhombus net 3 configured as described above, vertical guide columns 9, 9 that define the opening width of the opening are provided. The guide struts 9, 9 are made of a U-shaped or channel-shaped cross section into which the right and left sides of the rhombus net 3 are inserted, and support the beam-shaped machine box 24 accommodating the winding shaft body 4. Also plays the role of. Reference numeral 25 is a support projection that is provided on the left and right of the guide columns 9, and 26 is another support that supports the projection 25.

Therefore, in the device of the present invention, when the operating portion 27 is operated, for example, the diamond-shaped net 3 is rolled up from the cut-off state of FIG. 1 to open the opening, and when the switch 13 is operated, the maximum (or set) opening is opened. In this state, the diamond net 3 is stopped, and when the rewind switch is turned on, the diamond net 3 is rewound and the opening is closed.

In the rhombus net 3 in the cut-off state, each wire element 1 is made of a metal wire material such as stainless steel wire, and is reinforced by a lower rod 5 and an intermediate rod 7, and both left and right sides are guides. Since it is inserted into the pillars 9 and 9, it is not greatly bent even if a force for pushing the net surface is applied.

Further, even when an external force that displaces the line elements 1, 1, ... Is applied when the rhombus net 3 is moved up and down, the flexible stringer 6 that vertically passes the line elements 1 is Since the movement of 1 is prevented from moving freely, the flatness of the diamond net 3 is maintained during winding and rewinding without shifting or overlapping.

[0020]

[Effect of the device]

 Therefore, according to the present invention, the diamond-shaped net 3 made of the metallic wire element 1 provides a blocking device which is non-combustible and has rigidity, so that even if the hand or foot is accidentally stretched, Can be reliably shut off, and the rhombus net 3 is formed by hooking the line element 1 running in the horizontal direction at the bent portion 2, so that the winding and unwinding can be performed very smoothly. In addition, it is possible to obtain a low-priced, highly durable shutoff device that is optimal for construction sites, garages, and the like.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a blocking device according to the present invention.

FIG. 2 is a partially omitted front view showing an enlarged main part.

FIG. 3 is a cross-sectional view of a winding shaft body and a diamond net.

FIG. 4 is a partially omitted front view showing a relationship with a drive unit.

FIG. 5 is a sectional view of a winding shaft portion.

FIG. 6 is a side view seen from the right side of FIG.

FIG. 7 is a front view of a switch portion.

[Explanation of symbols]

 1 Wire Element 2 Bent Part 3 Rhombic Net 4 Winding Shaft 5 Lower Rod Material 6 Longitudinal Material

Claims (6)

[Scope of utility model registration request] 1. A rhombus having an approximately rhombic unit pattern on the front by vertically arranging metal line elements 1 formed in a corrugated polygonal line and running in the horizontal direction and hooking each other at respective bent portions 2. A net 3 is formed, and a winding shaft body 4 rotatable around a horizontal axis is installed above an opening requiring shutoff, and an upper side portion of the net 3 is attached to the winding shaft body 4 to wind the winding shaft. An opening having a configuration in which a lower rod 5 that allows the opening and closing of the diamond net 3 to be opened and closed by hoisting and rewinding 4 and keeps the lower side of the diamond-shaped net 3 substantially horizontal and makes the net a vertical surface is attached to the lower side. Cutoff device. 2. A flexible stringer 6 which extends vertically so as to sew the front side and the back side of the wire element 1 of the diamond-shaped net 3 and prevents the wire elements 1 from being displaced and overlapping with each other. Item 1. A device for blocking an opening according to item 1. 3. The opening blocking device according to claim 1, wherein a rigid intermediate rod 7 that runs horizontally in the middle portion of the diamond-shaped net 3 is provided integrally with the diamond-shaped net 3. 4. The winding shaft body 4 and the lower rod 5 have a linear mounting member 8 for attaching the upper side portion of the rhombus net 3 to the winding shaft body 4 and the lower side portion to the lower rod material 5. The opening blocking device according to claim 1, wherein the bent portion 2 of the diamond-shaped net 3 can be hooked while being spirally wound around. 5. The opening blocking device according to claim 1, further comprising guide columns 9 for vertically guiding the left and right sides of the diamond net 3. 6. The rotating shaft 1 is driven by a motor 10 and rotates in association with its drive system.
It is turned on and off by a moving element 12 which is screwed with 1 and moves to the left or right on the rotation axis depending on the rotation direction, and detects the winding position and the rewinding position of the diamond net 3 and stops the operation of the motor 10. The opening blocking device according to claim 1, further comprising a switch 13 for causing the opening.