KR102659277B1 - safety device in the door - Google Patents

Abstract

The present invention relates to a door safety device that prevents children from being injured through the gap between the door and the door frame. More specifically, it significantly improves the assembling of the screen assembled to connect the drum and the door fixing piece. It was invented to provide economic benefits through cost reduction by preventing product defects.
The configuration of the present invention is a door fixing piece ( 10), and a housing 20 that is installed on the door frame 2 in the vertical direction in a position close to the door fixing piece 10, and has a plurality of screw grooves 21 with the upper and lower parts open. And, a screen member 30 with one end fixed to the door fixing piece 10 and made of a flexible material that can be freely unfolded and wound, and the housing (30) in a hollow cylindrical shape with the other end of the screen member 30 fixed. 20), and a drum 40 having a Ω-shaped assembly groove 43 cut in the longitudinal direction, and both ends of the screen member 30 are fixed to the drum 40 and the door fixing piece 10, respectively. In providing a fixing pin (60) and an elastic means provided inside the drum (40) so that the screen member (30) has a certain elasticity,
The fixing pin 60 is made of synthetic resin and has a cylindrical head 61 that is fitted with a loose tolerance into the assembly groove 43 of the drum 40 and the fitting groove 12 of the door fixing piece 10, respectively. The support is integrally molded along the entire length of the head 61 to have a wing shape with a certain thickness thinner than the diameter of the head 61 on one side of the circumference of the head 61 and is fixed by sewing and the end of the screen member 30. It is characterized in that it consists of a member (62).

Description

Safety device in the door}

The present invention relates to a door safety device that prevents children from being injured through the gap between the door and the door frame. More specifically, it significantly improves the assembling of the screen assembled to connect the drum and the door fixing piece, and significantly improves the assembly of the product. It was invented to provide economic benefits through cost reduction by preventing defects.

Generally, a plurality of hinges are installed up and down between the door frame and the door to open and close the door.

A hinge is a tool that allows two metal plates fixed to the door frame and the door to rotate around the hinge axis.

When the door is opened around the hinge, a gap is inevitably formed between the door and the door frame. In particular, in the case of children or infants who lack attention, safety accidents often occur when the swing door is closed while the hand is caught through the gap. occurred.

Conventionally, in order to prevent safety accidents caused by damage to door gaps, a configuration for sealing door gaps has been proposed, such as Domestic Utility Model Publication No. 20-1991-11745, “Door Gap Safety Protector.”

However, structures such as conventional door gap blocking protective films have problems in that their structure and installation are complicated, their appearance is not attractive, and their shape changes or loses their resilience over time, interfering with the opening and closing of swing doors.

Meanwhile, as in Domestic Registered Utility Model No. 20-0224343, "Device for preventing fingers from being caught in an entrance door," a cylindrical body with an anti-entrapment film wrapped around the door frame is attached to the door frame, and the end of the anti-entrapment film is fixed to the door that opens and closes around the hinge. Therefore, it has been proposed that when the door is opened, the anti-jamming membrane unfolds to block the door gap.

According to the structure of the previously registered utility model No. 20-0224343, the rotating shaft with the anti-jamming film wrapped around the rotating shaft is installed inside the rotating shaft operating groove, and springs are hung from the upper and lower inner sides of the rotating shaft for elastic return. The end portion was designed to be hung inside the cover so that the anti-jamming membrane was unfolded and returned to the elastic force of the spring when the door was closed.

Therefore, if the door is opened while inserted inside the hollow tubular rotating shaft and the jamming prevention film is unfolded, the shape and position of the spring cannot be controlled, so the spring is severely twisted and bent, and at this time, the diameter is expanded and the rotation occurs. As it adheres closely to the inner diameter of the coaxial shaft, it affects the rotation of the rotating shaft due to severe friction.

In addition, since a pinch prevention membrane is installed approximately in the middle of the door and the door frame, it was possible to prevent injuries to adults or children from getting their hands caught in the door gap while standing.

However, for example, in the case of 1-3 year old infants who usually lie down or are very short, safety accidents often occur when their fingers enter the gap formed between the lower part of the door. In these cases, there was a problem in preventing accidents.

On the other hand, there is no support structure that allows the rotating shaft around which the anti-jamming film is wrapped to rotate smoothly while accurately maintaining its center, causing noise when the door opens and closes or friction caused by twisted springs. Due to this, the product does not operate smoothly and its marketability and reliability are lowered, so people are avoiding using it.

In order to solve this problem, the applicant of this application, as registered in Korean Patent Registration No. 10-2287492, completely blocks the gap where infants and toddlers' hands can get caught across the entire length between the door and the door frame with a screen to ensure various safety features. A safety device for doors has been proposed to prevent accidents.

The screen must be firmly fixed to the drum, which is elastically installed by a spring inside the housing, which is fixed to the door frame, and the door stopper, which is fixed to the door.

Therefore, when the door is opened, the screen unfolds together to close the gap between the door frame and the door, and when the door is closed, it is wound around the outside of the drum by the elasticity of the spring installed elastically inside the drum, maintaining a simple state without sagging. do.

Conventionally, in order to fix both ends of the screen to the drum and the door fixing piece, Ω-shaped fitting grooves were dug in the drum and door fixing piece in the longitudinal direction, and both ends of the screen were placed on the inner walls of the fitting grooves in a roughly round arc shape. The assembly pin is forcibly pressed into the insertion groove from the top to the bottom.

In this way, the screen was attached to the drum and door stopper, respectively.

However, in order to completely block the gap formed between the door and the door frame, the vertical length of the drum, door fixing piece, and screen must be manufactured to be relatively long, so the fixing pins for fixing each of these screens have a thin diameter and long shape. has.

Therefore, the assembly process for fixing the screen by forcibly fitting the fixing pins in the longitudinal direction with the screen positioned on the inner wall of the fitting groove is very difficult and requires a high degree of skill.

In addition, when skill is insufficient, defects such as frequently bent fixing pins or damaged screens occur frequently, and assembly work efficiency is very low, leading to increased product costs.

Republic of Korea Patent Registration No. 10-2287492 (registration date: August 3, 2021) Republic of Korea Public Utility Model No. 20-1991-11745 (publication date: July 29, 1991) Republic of Korea registered utility model No. 10-0224343 (registration date: March 7, 2001)

Accordingly, the present invention was created to solve the conventional problems as described above, and the assembly of the drum for winding the screen member and the door fixing piece fixed to the door can be done very simply, improving assembly efficiency. The purpose is to provide door safety devices with excellent economics and marketability through mass production.

Another object of the present invention is to provide a door safety device that has excellent screen fixation and can be disassembled and reassembled simply and quickly, making inspection and replacement of parts convenient.

In order to achieve the purpose of the present invention, a type of door safety device according to the present invention is formed of a metal material, has several holes 11 drilled, is fixed to the indoor side of the door 1 through a screw 5, and has a Ω shape. A door fixing piece (10) whose fitting groove (12) is dug in the longitudinal direction,
A housing (20) installed on the door frame (2) in a vertical direction in a position close to the door fixing piece (10), the upper and lower portions of which are open and provided with a plurality of screw grooves (21);
A screen member (30) whose one end is fixed to the door fixing piece (10) and which is made of a flexible material and can be freely unfolded and wound,
A drum 40 that is positioned inside the housing 20 in a hollow cylindrical shape with the other end of the screen member 30 fixed and has a Ω-shaped assembly groove 43 cut in the longitudinal direction;
A fixing pin (60) that secures both ends of the screen member (30) to the drum (40) and the door fixing piece (10), respectively;
In the screen member 30 being provided with elastic means provided inside the drum 40 to have a certain elasticity,
The fixing pin 60 is made of synthetic resin and has a cylindrical head 61 that is fitted with a loose tolerance into the assembly groove 43 of the drum 40 and the fitting groove 12 of the door fixing piece 10, respectively.
It is integrally molded along the entire length of the head 61 to have a wing shape of a certain thickness thinner than the diameter of the head 61 on one side of the circumference of the head 61 and is fixed by sewing and the end of the screen member 30. It is characterized by consisting of a support member (62).

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At the tip of the support member 62, a waist portion 63 is provided concavely in the shape of a narrow waist.

Additionally, a round portion 64 is formed at the end of the support member 62.

As described above, in the present invention, assembly is completed by simply inserting the head with a loose tolerance in the longitudinal direction along the groove provided in the drum and the door fixing piece while fixing both ends of the screen member to the support member by sewing. do.

Therefore, the number of assembly steps is small and work efficiency is very high, which can provide economic benefits by lowering production costs.

In addition, the screen member is well fixed and can be disassembled and reassembled simply and quickly, making inspection and replacement of parts convenient, resulting in excellent product reliability and marketability.

1 is an exploded perspective view showing the configuration according to an embodiment of the present invention.
Figure 2 is a flat cross-sectional view showing the hand pinch prevention device of the present invention installed on a door and door frame.
Figure 3 is a flat cross-sectional view showing a state in which the door is opened and the screen member is spread to block the door gap.
Figure 4 is a longitudinal cross-sectional view showing an assembled state in which the drum of the present invention is elastically installed by a spring assembly.
Figures 5 and 6 are enlarged cross-sectional views of the main part of Figure 4.
Figures 7a and 7b are plan views showing a structure in which a screen member is coupled to a drum through a fixing pin according to the present invention.
Figures 8a and 8b are plan views showing a structure in which a screen member is coupled to a door fixing piece through a fixing pin according to the present invention.
Figure 9 is a partially enlarged perspective view showing the head of the fixing pin being inserted into the assembly groove of the drum.
Figure 10 is an enlarged perspective view of a portion of the spring assembly.

The advantages and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings.

However, the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms. The present embodiments are merely provided to ensure that the disclosure of the present invention is complete and that the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms. It is provided to fully inform those with knowledge of the scope of the invention, and the present invention is only defined by the scope of the claims.

Additionally, the terms used in this specification are for describing embodiments and are not intended to limit the present invention.

As used herein, singular forms also include plural forms, unless specifically stated otherwise in the context. As used in the specification, “comprises” and/or “comprising” does not exclude the presence or addition of elements other than the mentioned elements.

Unless otherwise defined, all terms (including technical and scientific terms) used in this specification may be used with meanings that can be commonly understood by those skilled in the art to which the present invention pertains.

Hereinafter, the configuration of the present invention will be described in detail according to embodiments with reference to the attached drawings.

Figure 1 shows the configuration of the door safety device according to the present invention in an exploded perspective view.

The door (1) is rotatably connected to the door frame (2) around a hinge (3), and a door fixing piece (10) is fixedly attached to the door (1) with screws (5).

The door fixing piece (10) is made of metal and has several holes (11) drilled into it and is firmly fixed to the door (1) through screws (5), and the door (1) is opened and closed by combining the front end of the screen member (30). When rotated, the screen member 30 wound around the drum 40, which will be described later, can be unfolded.

The screen member 30 is a thin sheet of synthetic fiber or synthetic resin material and is selected as a material with good flexibility and toughness. Its front end is fixed to the door fixing piece 10 and its rear end is coupled to the drum 40 and is attached to the door (1). ) is wound around the outer peripheral surface of the drum 40 in the closed state, and unfolds when the door 1 is opened, thereby serving to block the gap created between the door 1 and the door frame 2.

The housing 20 has a cross-sectional shape shown in FIGS. 2 and 3, has a length corresponding to the screen member 30, is open at both upper and lower ends, and extends to the outside of the drum 40 on which the screen member 30 is wound. It is protected, and the position where the screen member 30 enters and exits is open.

A support plate 22 is integrally provided on one side of the housing 20, and is fixed in position through screws 5 while in close contact with the door frame 2. Since the upper and lower widths of the screen member 30 are considerably long, the door ( 1) In order to prevent excessive fluttering or sagging during the opening or closing process, the support plate 23 is integrally formed toward the passage through which the screen member 30 enters and exits.

In addition, screw grooves 21 are provided in the corners of the housing 20 in the longitudinal direction, and the positions of these screw grooves 21 are determined when the finishing members 51 of the spring assembly 50 are positioned at the upper and lower opening positions, respectively. The fixing screw (4) is fastened so that the finishing member (51) can be fixedly installed.

Here, the length of the drum 40 including the housing 20 and the screen member 30 may be molded to correspond to the inner vertical height of the door frame 2.

In addition, the screen member 20 is expanded by the opening and closing operation of the door 1 inside the housing 20 by molding it from the bottom surface where the door frame 2 is installed to a height that can be touched by a person's hand. It is possible to completely block the door gap formed between the door (1) and the door frame (2) to prevent injuries caused by inserting fingers.

The drum 40 is made of a hollow cylindrical metal material and is formed to approximately the same length as the installation height of the screen member 30, and has several assembly grooves 43 on the outer surface to secure the end of the screen member 30. They are dug concavely along the length.

Accordingly, the screen member 30 is attached to the drum 40 by pressing the fixing pin 60 inward into the assembly groove 43 while positioning the end of the screen member 30 to the outside of the drum 40. (FIGS. 7A and 7B)

In addition, the screen member 30 is attached to the door holding piece 10 by forming the fitting groove 12 in the door holding piece 10 in the longitudinal direction concavely toward the inside and assembling the fixing pin 60 in the longitudinal direction. ) is fixed to (Figures 8a and 8b).

Here, the entrances of the assembly groove 43 and the fitting groove 12 are formed into an approximately Ω shape slightly narrower than the inner diameter, so that the screen member is assembled with fixing pins 60 having the same structure along the longitudinal direction. (30) is firmly fixed so that it cannot be separated in the operating direction.

The fixing pin 60 according to the present invention is made of synthetic resin and has a cylindrical head 61 that is fitted into the assembly groove 43 of the drum 40 and the fitting groove 12 of the door fixing piece 10 with a loose tolerance, respectively. ), and is integrally molded along the entire length of the head 61 to have a wing shape with a certain thickness thinner than the diameter of the head 61 on one side of the circumference of the head 61 and is attached to the end of the screen member 30 and the seam. It consists of a support member 62 fixed by.
Meanwhile, at the tip of the support member 62, a concave waist portion 63 is provided in the shape of a narrow waist, and both ends of the screen member 30 overlap at a certain width at the position of the waist portion 63. It is fixed along the length direction by sewing.

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By forming the waist portion 63 narrowly in this way, flexibility is maintained when wound around the outer peripheral surface of the drum 40 along the screen member 30 (FIG. 7b).

In addition, when installed on the door fixing piece 10, it retains flexibility even when it is severely bent along the space between the screen member 30 and the door (FIG. 8b).

In addition, the end of the support member 62 is formed with a round portion 64, so that even if the direction is bent while contacting the screen member 30, there is no damage to the screen member 30 or other components.

In this structure, the screen member 30 is connected to the door fixing piece 10 and the drum 40, respectively, and unfolds when the door 1 is opened, or the drum 40 is opened through elastic means for the return of the drum 40. ) is rotated and the screen member 30 can be wound around the outer circumferential surface.

Elastic means for providing the screen member 30 with a certain elasticity is mounted inside the drum 40.

That is, the drum 40 is formed with a connecting groove 42 on one or both sides of the long hole 41 passing through the center, so that it can be assembled in a state of maintaining elasticity through the spring assembly 50 of the elastic means. .

The spring assembly 50 includes a shaft 52 integrated with the finishing member 51, an assembly 54 fitted into the long hole 41 of the drum 40, and a structure between the shaft 52 and the assembly 54. It consists of a coiled spring 53 that connects in the longitudinal direction.

The finishing member 51 seals the opening in the longitudinal direction of the housing 20, and a shaft 52 that is inserted into the long hole 41 of the drum 40 is integrally formed in the center.

In addition, the assembly 54 located at the end of the spring assembly 50 has a locking protrusion 55 on one side or both left and right sides so as to be hung in the locking groove 42 while being inserted into the long hole 41 of the drum 40. It is protruded and molded in one piece.

A spring 53 is assembled between the assembly 54 and the shaft 52. One end of the spring 53 is connected to the shaft 52, and the other end is connected to the assembly 54. In order to provide elastic force to the drum 40 and the screen member 30, the finishing member 51 and the drum 40 are connected with the assembly 54 and the spring 53 deeply inserted into the drum 40. After rotating the spring 53 several times in the twisting direction, the finishing member 51 and the housing 20 are fixed.

At this time, the elasticity of the coil spring 50 is such that the screen member 30 can maintain the elasticity to be wound toward the drum 40 even when the door 1 is closed to the door frame 2, as shown in FIG. 2. This prevents the screen member 30 from sagging loosely or damaging its appearance.

Holes 51b are drilled at the corner positions of the finishing member 51 in positions corresponding to the screw grooves 21 of the housing 20, and the finishing member 51 is placed in an opening on one side of the housing 20. By fastening the fixing screw 4 to the position of the hole 51b and the screw groove 21, the finishing member 51 is fixed in position while maintaining elastic force in the drum 40.

At this time, a plurality of position fixing holes 51a are further drilled in the finishing member 51 of the spring assembly 50 at positions corresponding to the assembly grooves 43 of the drum 40.

Therefore, in the process of assembling the finishing member 51 to the housing 20, the drum 40 and the screen member 30 are fixed to prevent themselves from being released by the spring 53, which has elasticity in the rotation direction. When the pin (8) is inserted into the position fixing hole (51a) and the assembly groove (43), loosening can be temporarily prevented until assembly is completed, making assembly convenient.

When the assembly of the drum 40 and the spring assembly 50 is completed, the temporarily assembled fixing pin 8 is removed and the screen member 30 is wound around the drum 40 by the elasticity of the spring 53. enable it to be maintained.

Only one spring assembly 50 may be installed.

In addition, as shown in FIGS. 1 and 4, a plurality of spring assemblies 50 may be installed on both sides of the drum 40 so that the winding directions of the springs 53 are symmetrical to each other.

In addition, it is desirable to shape the distal end of the locking protrusion 55 provided on the assembly 54 of the spring assembly 50 to be slanted so that it can be smoothly inserted into the long hole 41 and the locking groove 42. (Figure 10)

Here, the hinge 3, which is installed between the door frame 2 to enable the door 1 to rotate, is installed at the top, center, and bottom, respectively, and is connected between them with a connector (not shown) to form the door 1. It is desirable to completely block each gap not only on the inside but also on the outside of the door (1) in terms of the effect of preventing safety accidents due to hand entrapment.

According to the structure of the fixing pin 60 of the present invention, the head 61 with a loose tolerance is connected to the drum 40 and the door while both ends of the screen member 30 are fixed to the waist portion 63 by sewing. Assembly is completed by simply inserting the fixing piece 10 in the longitudinal direction along the assembly groove 43 and the fitting groove 12 provided, respectively.

Therefore, the assembly process is small and the work efficiency is very high, thereby lowering the production cost and providing economic benefits.

Although the door safety device according to the present invention has been described in detail above, this is only a description of the most preferred embodiment of the present invention, and the present invention is not limited thereto, and the scope is determined by the appended claims. It is limited. In addition, anyone skilled in the art will be able to make various modifications and imitations based on the contents described in the specification of the present invention, but it will be clear that these are not beyond the scope of the present invention.

10 - Door fixing section
20 - Housing
30 - Screen member
40 - Drum
41 - Janghol
42 - Hook groove
50 - Spring assembly
51 - Finishing members
52 - Shaft
53 - Spring
54 - Assembly
55 - Stumbling block
60 - fixing pin
61 - Head
62 - Support member
63 - waist

Claims (3)

A door fixing piece (10) that is formed of metal, has several holes (11) drilled into it, is fixed to the interior side of the door (1) through screws (5), and has a Ω-shaped fitting groove (12) drilled in the longitudinal direction,
A housing (20) installed on the door frame (2) in a vertical direction in a position close to the door fixing piece (10), the upper and lower portions of which are open and provided with a plurality of screw grooves (21);
A screen member (30) whose one end is fixed to the door fixing piece (10) and which is made of a flexible material and can be freely unfolded and wound,
A drum 40 that is positioned inside the housing 20 in a hollow cylindrical shape with the other end of the screen member 30 fixed and has a Ω-shaped assembly groove 43 cut in the longitudinal direction;
A fixing pin (60) that secures both ends of the screen member (30) to the drum (40) and the door fixing piece (10), respectively;
In the screen member 30 being provided with elastic means provided inside the drum 40 to have a certain elasticity,
The fixing pin 60 is made of synthetic resin and has a cylindrical head 61 that is fitted with a loose tolerance into the assembly groove 43 of the drum 40 and the fitting groove 12 of the door fixing piece 10, respectively.
It is integrally molded along the entire length of the head 61 to have a wing shape of a certain thickness thinner than the diameter of the head 61 on one side of the circumference of the head 61 and is fixed by sewing and the end of the screen member 30. A safety device for a door, characterized in that it consists of a support member (62).
In claim 1,
A safety device for a door, characterized in that a waist portion 63 is provided at the tip of the support member 62 in a concave shape with a narrow waist between the heads 61.
In claim 1,
A door safety device, characterized in that the end of the support member (62) is formed with a round portion (64).

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