KR101002861B1 - Fail safe door - Google Patents

Abstract

The present invention relates to a double safety door, comprising: at least one door having a glass material and an upper frame and a lower frame; A floor hinge connected to one side of the lower frame of the door; And a door frame having a hinge connected to one side of the upper frame of the door to rotatably support the door, and a pair of vertical frames having one side fixed to a wall by a plurality of bolts. At least one of the vertical frames, the through groove is formed in the longitudinal direction on the opposite side of the one side, therein, the nuts are respectively fastened to the bolt, the ball is attached to one end and the other end is A spring fitted to the bolt, and a movable member having a U-shaped cross section so as to surround the bolt and the nut, the spring and the ball, each having wings on both sides, and protruding out of the vertical frame through the through groove; In addition, it prevents accidents such as finger or part of the body getting caught when the door is opened and closed, and energy loss during refrigeration. In addition, even if the door is slightly inclined from the door frame, the original function can be achieved, thereby providing a time allowance for simple repairs while preventing a sudden collapse, and reducing the cost of maintenance. Will be.

Description

Double safety door {FAIL SAFE DOOR}

The present invention relates to a double safety door, and more particularly, it is possible to prevent a safety accident in which a part of the body such as a human finger is caught between the door and the door frame when the door is opened and closed, and smooth operation even if used for a long time It relates to a double safety door that can improve the use reliability.

Recently, glass doors are widely used as entrances and exit doors of various buildings, offices, officetels, etc., due to their beautiful appearance, transparency, merits, convenience, and economy.

In particular, the construction and dismantling or maintenance is very easy, so most of the doors are replaced with glass doors. Such glass doors generally allow natural light to pass through, so as to brighten the atmosphere from the entrance of the building and ensure safety. It is manufactured using tempered glass with excellent durability as a main material.

1 shows a front view of a door assembly made of glass doors according to the prior art, the door assembly 100 having a pair of upper frames 2 and lower frames 3 surrounding the glass material 1. At least one door 10 comprising a side frame 4; A pair of vertical frames 21 installed on a wall such as an anchor through a plurality of fasteners (not shown), such as anchor bolts, and hinges 11 and 11a installed vertically on one side of the door 10. Door frame 20 including at least one horizontal frame 22 to rotatably support the door 10 by means of;

However, when the door 10 is closed in a state in which a human finger is inserted in a gap between the door 10 and the door frame 20 or between both doors 10 in the process of opening and closing the door 10, the finger is broken. There is a risk of serious injury. Safety accidents caused by these doors occur frequently in children who are more playful and distracted than adults, and are actually left in a very dangerous state.

In addition, after the door is installed, the heating or cooling may not be performed well due to a gap formed between the door 10 and the door frame 20 or between both doors 10, resulting in energy waste. In addition, there is a problem that external dust or rain water is introduced by the gaps.

In order to solve these problems, various door assemblies have been proposed to reduce the risk of safety accidents along with windbreaks, but most of these door assemblies have a hinged or door frame (20) due to the load according to the weight of the door (10) over a long period of use. If the door 10 is tilted from), it is difficult to operate smoothly, and the gap is widened, so that the effect of preventing wind and safety accidents is reduced, and in a serious case, a sudden collapse occurs, thereby increasing the cost of maintenance. There was this.

Accordingly, the present invention has been made to solve the above problems, the present invention is a double safety that can prevent the safety accidents such as a finger or a part of the body between the door and the door frame or the door and the door when the door is opened and closed The purpose is to provide a door.

In addition, another object of the present invention is to provide a double safety door that can minimize the energy loss when heating or cooling.

Another object of the present invention, even if the door is slightly inclined from the door frame to prevent the safety accident during the opening and closing with the windshield, as well as to prevent the occurrence of a sudden collapse accident can obtain a time allowance to simply repair Therefore, to provide a double safety door that can reduce the cost of maintenance.

In addition, another object of the present invention is to provide a double safety door that can be prevented from being damaged from the cover or the glass even when the impact from the outside.

A double safety door according to the present invention for achieving this object, at least one door having a glass material, and an upper frame and a lower frame installed on the upper and lower portions of the glass material; A floor hinge connected to one side of the lower frame of the door; A door frame having a hinge connected to one side of the upper frame of the door to rotatably support the door, and a pair of vertical frames having one side fixed to the wall by a plurality of bolts;

At least one of the vertical frames, the through groove is formed in the longitudinal direction on the opposite side of the one side, the inside, the nut is fastened to each of the bolt, the ball is attached to one end and the other end A spring fitted to the bolt, and having a U-shaped cross section surrounding the bolt and the nut, the spring and the ball, each having wings on both sides, and protruding out of the vertical frame through the through groove. With a member,
Covers are further provided along the hinge side lengthwise ends at the front and rear surfaces of the glass material of the door, each having a semicircular cross section and having a fixed groove formed at both ends, corresponding to both ends of the main body. A pair of holders, which are attached to the glass material in the longitudinal direction at the position and having fixing grooves formed on one side thereof, and fixing portions having cross-sectional shapes corresponding to the cross-sectional shapes of the fixing grooves inserted into the fixing grooves in the longitudinal direction on both sides thereof, respectively. And a pair of elastic members having corrugations formed between these fixing parts, a plurality of columnar support members attached to the glass material between the holders, and one end of which is fitted to the support member and the other end of the It is characterized by consisting of a spring in contact with the body.

In addition, the double safety door according to the present invention comprises: a glass material, at least one door having an upper frame and a lower frame installed on the upper and lower parts of the glass material; A floor hinge connected to one side of the lower frame of the door; A horizontal frame rotatably supporting the door with a hinge connected to one side of the upper frame of the door, a pair of outer vertical frames fixed to the wall, and at least one intermediate vertical frame disposed between the outer vertical frames And a door frame having a plate disposed between the intermediate vertical frame and one of the outer vertical frames.

At least one of the intermediate vertical frames has a concave groove formed in a longitudinal direction on the side surface of the plate, a through groove is formed in a longitudinal direction on the side opposite to the side, and therein, in the concave groove A plurality of screw members inserted into and fixed through the side surface of the plate, fastening members respectively fastened to the screw members, springs having a ball attached to one end and the other end fitted to the fastening members, and the screw members. And a U-shaped cross section surrounding the fastening member, the spring and the ball, each having wings on both sides, and a movable member protruding out of the intermediate vertical frame through the through groove.

In the double safety door according to the present invention, a vertical guard is further provided at a longitudinal end of the door opposite to the hinge, and the vertical guard has a U-shaped cross section to be fitted to the glass material of the door and has a longitudinal direction at least on one side thereof. And a mounting member having a mounting groove formed therein, and an elastic member having a mounting protrusion having a cross-sectional shape corresponding to a cross-sectional shape of the mounting groove so as to be inserted into the mounting groove.

In addition, the double safety door according to the present invention is further provided with a cover along the longitudinal side of the hinge side in the front and rear of the glass material of the door, the cover has a semi-circular cross-section main body formed with fixing grooves at both ends And a pair of holders which are longitudinally attached to the glass material at positions corresponding to both ends of the main body and having fixing grooves formed on one side thereof, and end surfaces of the fixing grooves inserted into the fixing grooves in the longitudinal direction on both sides thereof, respectively. A pair of elastic members having a fixing portion having a cross-sectional shape corresponding to the shape and having a pleat formed therebetween, a plurality of columnar supporting members attached to the glass material between the holders, and one end side It is fitted to the support member and the other end is composed of a spring in contact with the main body.

As described above, according to the present invention, it is possible to prevent a safety accident such as a finger or a part of the body between the door and the door frame or the door and the door when the door is opened and closed, as well as energy when heating or cooling. In addition, the loss can be reduced as much as possible, and even if the door is inclined slightly from the door frame, the original function can be achieved, thereby freeing up time for simple repairs while preventing a sudden collapse. This is reduced, and there is an effect to provide a double safety door that can be prevented from damage to the cover or the glass even when the impact from the outside.

EMBODIMENT OF THE INVENTION Hereinafter, the structure and effect | action of this invention are demonstrated in detail based on an accompanying drawing. First, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

The double safety door according to the present invention can be applied to a double door or short door, and it is known that the door can be applied to a structure having three or more doors.

2 is an exploded perspective view of the double safety door according to the first embodiment of the present invention, Figure 3 is a plan sectional view showing the assembled state of the double safety door shown in FIG.

Double safety door according to the first embodiment of the present invention is a glass material 1, the upper frame (2: Fig. 1) and the lower frame (3: Fig. 1) installed on the upper and lower portions of the glass material (1) At least one door 10; A floor hinge 11a (see FIG. 1) connected to one side of the lower frame 3 of the door 10; A hollow horizontal frame 22 (see FIG. 1) having a hinge 11 (see FIG. 1) connected to one side of the upper frame 2 of the door 10 to rotatably support the door 10, and one side surface. And a door frame 20 having a pair of vertical frames 21 fixed to the wall 60 by the plurality of bolts 23.

In particular, the double safety door according to the first embodiment of the present invention, as shown in detail in Figures 2 and 3, at least one of the vertical frame 21 constituting the door frame 20, a plurality of bolts ( Through-holes 21a are formed in the longitudinal direction, that is, up and down, on the opposite side of one side fixed to the wall 60 by 23, and nuts inside are fastened to the bolts 23, respectively. (24), a spring (25) having a ball (25a) attached to one end and the other end fitted to the bolt (23), the bolt (23), the nut (24), and the spring (25) A movable member 26 having a U-shaped cross section and wings extending in both sides so as to surround the ball 25a and protruding out of the vertical frame 21 through the through groove 21a. Equipped.

Vertical frame 21 is a hollow rectangular pipe shape, one side is formed with a plurality of fixing holes (not shown) for fixing to the wall 60 via the bolt 23, the other side will be described later The through groove 21a having a predetermined width formed to move the protruding member 26 is formed long. A protective cap 27 made of plastic or the like is disposed at both ends of the through groove 21a to protect the movable member 26 and prevent its abrasion upon contact with the movable member 26.

The bolt 23 is buried in the wall 60, for example, such as an anchor bolt, and a threaded portion protrudes from the wall 60, passes through the vertical frame 21, and then fastens with a nut 24. It can be good. As long as the bolt 23 can support and fix the vertical frame 21, the number is not limited but it is preferable to use at least three bolts 23 as shown. In addition, a washer 24a may be additionally provided between the bolt 23 and the nut 24.

The bolt 23 is generally installed in the hole by drilling a hole of a suitable size using a tool such as a drill in the wall (60).

The spring 25 uses a coiled spring, one end of which is fixed by welding a ball 25a or a spherical body, the other end of which is fitted into the bolt 23, and the other end of which is in contact with the nut 24. . Since this spring 25 is fitted over a part of the bolt 23, it can be mounted stably without flowing. The number of springs 25 may be equal to or less than the number of bolts 23.

The movable member 26 having a generally U-shaped cross section so as to surround the above-described bolt 23, the nut 24, the spring 25, the ball 25a, and the like is a through groove of the vertical frame 21 that is formed long. (21a) is installed in the form penetrating through the entire length, which is in contact with the ball (25a) fixed to one end of the spring 25 protrudes out of the vertical frame 21 due to the elastic force of the spring (25) However, the wings 26a extend on both sides, and their protruding degree is limited.

On the end surface of the protruding portion of the movable member 26, a coupling groove 26b for mounting the windshield 12 along the longitudinal direction of the movable member 26 is formed. For smooth operation of the door 10, there is a slight gap between the door 10 and the vertical frame 21 (and consequently the movable member), through which the outside wind, dust or rainwater flows in, or the building The internal air flows to the outside during the heating and cooling to reduce the cooling and heating efficiency, forming a coupling groove (26b) in the movable member (26) forming the gap to install a windshield 12 here to prevent it will be. At this time, the windshield 12 is preferably formed of a mohair (Mohair) or a rubber strip so as not to interfere with the operation of the door.

At the bottom of the movable member 26, at least one wheel or roller 26c is mounted to facilitate the movement of the movable member 26. The roller 26c is provided at both lower sides of the movable member 26. After inserting the roller 26c into the movable member 26 by making a hole in the wall surface, the fixing pin fitted through the hole in one wall surface can pass through the movable member 26 and the roller 26c.

The glass material 1 of the door 10 positioned adjacent to the vertical frame 21 is vertically positioned between the upper frame 2 and the lower frame 3, but preferably, tempered glass is used. Ordinary glass plates can be used. In addition, the glass material 1 may be a double tempered glass which is integrally bonded by applying a silicone and an adhesive between two glass plates, in which case the fragments of the glass material do not splash when broken and are easy to remove when broken. There is an advantage, in particular, the glass frame (1) to maintain the shape so that the upper frame (2) does not fall in case of breakage has the advantage of enabling the use of the door (10) continuously. In addition, it is possible to form letters, patterns or patterns between two glass plates, which makes the aesthetics of the door more colorful, and also has the advantage of providing rigidity to which a locking device or other security device can be installed. .

A vertical guard 30 is additionally provided at an end of the door 10 opposite to the hinges 11 and 11a in the longitudinal direction, and the vertical guard 30 is formed of the glass material 1 of the door 10. ), A mounting member 31 having a substantially U-shaped cross section to be fitted into the mounting member 31 having a mounting groove 31 a formed in a longitudinal direction on at least one side thereof, and a cross section of the mounting groove 31 a to be inserted into the mounting groove 31 a. An elastic member 32 having a mounting protrusion 32a having a cross-sectional shape corresponding to the shape and having a coupling groove 32b on one side opposite to the mounting protrusion 32a, and inserted into the coupling groove 32b. It is made of a windshield (12).

The mounting member 31 of the vertical guard 30 is installed to surround the front and rear portions of the glass material 1 along the longitudinal direction of the glass material 1, the upper frame 2 of the door 10 and In order not to interfere with the lower frame 3, an upper end portion and a lower end portion are provided with mounting grooves 31a which are stepped apart. The mounting groove 31a is fitted with an elastic member 32 made of a material such as rubber, for example, so that a safety accident can be prevented even if a human finger or hand is caught. The elastic member 32 also includes a door 10. It is preferable to form a step with respect to the mounting member 31 by being formed in accordance with the length of the stepped mounting groove 31a so as not to interfere with the upper frame (2) and the lower frame (3). At this time, it is preferable to form at least one air distribution hole 32c along the longitudinal direction in the center of the elastic member 32 so that the material can be reduced and smooth elastic deformation can be made. In addition, the windshield 12 inserted into the coupling groove 32b of the elastic member 32 is the same as the windshield installed in the movable member 26, but the length is just the same as the elastic member 32.

In the mounting member 31 of the vertical guard 30, at least one row of longitudinal grooves 31b is preferably formed on both inner circumferential surfaces of the front and rear portions of the glass material 1, correspondingly to the above. On both outer circumferential surfaces of the glass material 1, at least one row of longitudinal projections 1a is formed to have a cross section corresponding to the cross section of the longitudinal grooves 31b, such a longitudinal groove 31b and a longitudinal projection. By the engagement of (1a), there is an effect that the support and fixing of the mounting member 31 to the glass material 1 become more firm.

4 shows in cross section various modifications of the vertical guard which can be used in the double safety door according to the first embodiment of the present invention.

Referring now again to FIGS. 2 and 3, the double safety door according to the first embodiment of the present invention is close to the hinges 11 and 11a at the front and rear surfaces of the glass material 1 of the door 10, respectively. A cover 40 is additionally provided along the longitudinal end, and the cover 40 has a semi-circular cross section and a main body 41 having fixed grooves 41a formed at both ends thereof, and both side ends of the main body 41. A pair of holders 42 are attached to the glass material 1 in a lengthwise direction at a position corresponding to the holder 42 and a fixing groove 42a is formed at one side thereof, and the fixing grooves 41a and 42a are formed at both sides of the holder 42. A pair of expansion and contraction members 43 having a fixing portion 43a having a cross-sectional shape corresponding to the cross-sectional shape thereof, and having a corrugation portion 43b formed between the fixing portions 43a, A plurality of columnar support members 44 attached to the glass material 1 between the holders 42, and one end is fitted to the support member 44 and the other The end is composed of a spring 45 in contact with the body 41.

The cover 40 has a semicircular cross-sectional shape as a whole, and as shown in the figure, the main body 41 has a hollow tube shape and alternately formed peaks and valleys on its outer surface in the longitudinal direction. Due to the shape of the outer surface, crushing or surface damage of the cover 40, in particular, the main body 41 can be prevented. In addition, a spring groove 41b for easily positioning the spring 45 to be described later may be formed on the inner surface of the main body 41. In FIG. 5, a double safety door according to the first embodiment of the present invention. Variations of the body of the cover that can be used for the are shown. Among the modified examples shown in (b) of FIG. 5, an additional groove member is additionally formed in the fixing grooves at both ends of the main body, and the fixing portion of the elastic member is also in the form of a groove. 5 (c) shows an example of a main body having an arc-shaped cross section and a hill and a valley alternately formed in the longitudinal direction on the outer surface thereof, and fixed portions 41c are formed at both ends thereof. Simple structure, but the same effect can be achieved.

Referring back to Figures 2 and 3, the cover 40 is composed of a length extending to the top of the upper frame 2 of the door 10 and the bottom of the lower frame (3).

On the other hand, the pair of holders 42 are horizontally spaced apart from each other along the longitudinal direction of the glass material 1 between the upper frame 2 and the lower frame 3. The holder 42 is an elongated pipe member having a rectangular cross section, and a fixing groove 42a is formed in the longitudinal direction on the side opposite to the attachment surface with the glass material 1. When attaching the holder 42 to the door 10, a part of the upper end portion and the lower end portion of the holder 42 is cut out so as not to interfere with the upper frame 2 and the lower frame 3 of the door 10. It is desirable to make wealth. Accordingly, a side shorter than one side having the fixing groove 42a is attached to the glass material 1, and the upper and lower sides of the exposed rear surface of the one side are respectively the upper frame 2 and the door 10. It is attached to the lower frame (3). When attaching the holder 42, it is preferable to adhere using a double-sided tape or an adhesive.

6A shows a fixing groove 41a formed in the main body 41 of the cover 40 that can be used for the double safety door according to the first embodiment of the present invention, or a fixing groove formed in the holder 42 ( 42a and a modification of the fixing portion 43a of the elastic member 43 inserted into these fixing grooves 41a and 42a are shown. The feature of this modification is that the projections 412 are formed in the fixing grooves 41a and 42a, and the fixing portion 43a is formed in the shape of a groove to which the projections 412 can be fitted. As a result, the fixing grooves 41a and 42a are engaged with the inside and the outside of the fixing portion 43a, thereby achieving reliable fixing.

6 (b) and (d), the fixing portion 43a in the form of a groove can be fitted in the fixing grooves 41a and 42a, and in FIG. As shown in FIG. 3, the fixing part 41c is installed in the main body 41 or the holder 42 of the cover 40, and the fixing part 43a of the elastic member 43 is in the form of a groove. FIG. 6 (d) shows an example of a structure in which the wrinkle part described later is omitted.

The wrinkled portion 43b of the elastic member 43 is formed such that a plate member made of rubber or plastic is folded in several layers, and the wrinkled portion 43b is elastic in response to the elastic force of the spring 45 to be described later. Allow member 43 to elongate or retract. In addition, the outer end of the corrugation portion 43b is provided with a projection of a substantially circular cross section (see FIG. 6), so that the outer end of the corrugation portion 43b and its projection are vertical frames when the door 10 is rotated. 21 is in contact with the windshield 12, such as mohair mounted there is an effect that can shake off the foreign matter attached to the windshield 12.

One end is fitted to the columnar support member 44 attached to the glass material 1 between the holders 42, and the other end is provided with a spring 45 so as to contact the main body 41. ) Is inserted into the groove (41b) for the spring while one end is fitted to the support member 44, it can be mounted stably without flow. Due to such a spring 45, there is an effect that can absorb the impact applied from the outside and prevent the damage to the cover 40 to the glass material (1). As long as the spring 45 supports the cover 40 and exerts sufficient elastic force, the number is not limited but it is preferable to use at least three springs 45 as shown, and thus at least three supports. Of course, the member 44 should be installed.

Figure 7 is a perspective view showing a horizontal guard that can be mounted to the double safety door according to the first embodiment of the present invention, such a horizontal guard 50 is at the top of the upper frame 2 or the bottom of the lower frame 3 Each is installed, the structure is the same, but the action or effect is slightly different, each case will be described in more detail.

In general, the upper frame 2 or the lower frame 3 of the door 10 is made of a thin iron plate on the inside and is installed by applying stainless steel to the outside. In addition, a gap of about 9 mm is created between the glass material 1 and the upper frame 2 or the lower frame 3, which is hermetically sealed using a sealing material such as silicon.

If the door 10 is installed where there is no raining eaves, water may accumulate inside the upper frame 2 due to rain or condensation due to temperature difference, and such water may be accumulated in the upper frame 2. It also promotes corrosion and sometimes expands, so that the sealant is released and the seal is released, and there is a danger that the melt flows into the glass material or the upper frame 2 due to corrosion falls off.

On the other hand, a gap exists between the door 10 and the floor, and furthermore, since the lower frame 3 of the door 10 is mostly made of a metallic material, the shoe of the person in the gap in the process of opening and closing the door 10. Or even your toes may get caught, injuring your shoes or injuring your toes.

In order to solve the above problems, the horizontal guard 50 as shown is mounted on the upper or lower portion of the door 10. The horizontal guard 50 includes a cover 51 made of an elastic material, such as rubber or plastic, which surrounds the upper surface of the upper frame 2 of the door 10 or the lower surface of the lower frame 3, and the horizontal frame of the door frame. Or it is made of a windshield 12 installed on the cover 51 to extend toward the bottom side, the windshield 12 is preferably formed of a mohair or rubber strips and the like.

Next, Figure 8 is a cross-sectional view showing a state in which the double safety door according to the second embodiment of the present invention is assembled. As shown here, the double safety door according to the second embodiment of the present invention is formed similarly to the double safety door of the first embodiment described above, but this second embodiment is formed between the wall 60 and the door 10. When the plate is added, the present invention is applied to the example, there is a difference in the configuration of the vertical frame. Other configurations are the same or similar to the first embodiment and the second embodiment, so that the same reference numerals are given to them, and the detailed description thereof will be omitted.

The double safety door according to the second embodiment of the present invention, the glass material 1, the upper frame (2: Fig. 1) and the lower frame (3: Fig.) Installed on the upper and lower portions of the glass material (1) 1) at least one door 10; A floor hinge 11a (see FIG. 1) connected to one side of the lower frame 3 of the door 10; A hollow horizontal frame 22 (see FIG. 1) having a hinge 11 (see FIG. 1) connected to one side of the upper frame 2 of the door 10 to rotatably support the door 10, and one side surface. A pair of outer vertical frames 21 'fixed to the wall 60, at least one intermediate vertical frame 21 "disposed between these outer vertical frames 21', and this intermediate vertical frame 21 Door frame 20 having a plate material 28 disposed between ") and one of the outer vertical frames 21 '.

In particular, in the double safety door according to the second embodiment of the present invention, as shown in FIG. 8, at least one of the intermediate vertical frames 21 ″ constituting the door frame 20 is the plate 28. The concave groove 21b is formed in the longitudinal direction in the longitudinal direction, ie, up and down, on the side, and the through groove 21a is formed in the longitudinal direction on the opposite side of the side, and in the concave groove 21b. ) A plurality of screw members 23 ′ inserted into and fixed to the side surface of the plate 28, a fastening member 29 fastened to each of these screw members 23 ′, and a ball 25a once. A spring 25 attached to the other end and fitted to the fastening member 29, and surrounding the screw member 23 ', the fastening member 29, the spring 25 and the ball 25a. It has a U-shaped cross section so as to have wings (26a) extending to both sides so that the intermediate vertical rope through the through groove (21a) A movable member 26 is provided to protrude out of the frame 21 ".

The outer vertical frame 21 'is in the form of a hollow square pipe, one side of which is fixed to the wall 60, and the other side is formed with a concave groove 21b into which a part of the plate member 28 to be described below is inserted and fixed. .

The intermediate vertical frame 21 "also has a hollow rectangular pipe shape, and on one side is formed a concave groove 21b into which the plate 28 is partially inserted and fixed, and the screw member 23 'is formed in the concave groove 21b. ) Is provided with a fixing hole (not shown) for inserting, and on the opposite side, a through hole 21a of a predetermined width is formed so that the movable member 26 to be described later can protrude and move.

The plate 28 disposed between the outer vertical frame 21 ′ and the intermediate vertical frame 21 ″ is fixed with both ends inserted into the concave groove 21 b of these contracting frames. It is made of a material such as metal, plastic, or glass, and it is generally preferable to install a glass plate consistently around the glass door.

The screw member 23 'is preferably a screw having a drill portion, for example, with a countersunk head, but the shape thereof is not limited as long as it can support and fix the fastening member 29 described later. At least three screw members 23 'and fastening members 29 may be provided.

The fastening member 29 fits into the concave groove 21b of the intermediate vertical frame 21 ″ to one side, that is, the projection projecting inward due to the concave groove 21b when viewed from the inside of the intermediate vertical frame 21 ″. It consists of the fitting part 29a fitted to 21c and the cylindrical support part 29b extended to the opposite side of this fitting part 29a, and the through-hole penetrated from this support part 29b to the center of the fitting part 29a. 29c is formed, and a thread is formed in the inner circumferential surface of the through hole 29c. Thus, the screw member 23 'is inserted into the fixing hole formed in the concave groove 21b of the intermediate vertical frame 21 "to enter the through hole 29c of the fastening member 29 to be fastened and fixed. .

The spring 25 is the same as the coiled spring of the first embodiment, except that the support 29b of the fastening member 29 is fitted on the opposite side to the side of the ball 25a or the spherical body.

The movable member 26, which is generally elongated with a U-shaped cross section, surrounds the above-described screw member 23 ', the fastening member 29, the spring 25, the ball 25a, and the like. It is to be installed in the form of penetrating through the entire length of the through groove (21a) of).

As a result, even if the door is slightly inclined from the door frame, it is possible to prevent windfalls and safety accidents, as well as to allow time for simple repairs while preventing the occurrence of sudden collapse, thereby reducing the cost of maintenance. It will be able to provide a safety door. That is, it provides a double safety door that can prevent not only the safety accident of the user but also the collapse of the entire door.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention.

For example, Figure 9 shows a variant of the double safety door according to the present invention, which is shown that the vertical frame 21 and the movable member 26 of the door frame 20 is the first embodiment ( Or the same as the second embodiment), but the cover is fixedly deformed, that is, the cover 40 'has a substantially circular cross section and has an insert portion fitted to the glass member 1, so that the above-described embodiments are provided. The configuration can be simpler.

Therefore, the embodiments disclosed in this specification are not intended to limit the technical spirit of the present invention but to explain, and the protection scope of the present invention should be interpreted by the following claims, and all technical spirits within the scope equivalent thereto. Should be construed as being included in the scope of the present invention.

1 is a front view of a door assembly with glass doors according to the prior art.

2 is an exploded perspective view of a double safety door according to a first embodiment of the present invention.

3 is a plan sectional view showing the assembled state of the double safety door shown in FIG.

4 is a cross-sectional view showing various modifications of the vertical guard that can be used in the double safety door according to the first embodiment of the present invention.

5 is a cross-sectional view showing various modifications of the main body of the cover that can be used in the double safety door according to the first embodiment of the present invention.

Figure 6 is a cross-sectional view showing various modifications of the coupling method of the main body and the holder and the elastic member of the cover that can be used in the double safety door according to the first embodiment of the present invention.

7 is a perspective view showing a horizontal guard that can be mounted to a double safety door according to a first embodiment of the present invention.

8 is a plan sectional view showing a state in which the double safety door is assembled according to the second embodiment of the present invention.

9 is an exploded perspective view showing a modification of the double safety door according to the present invention.

Claims (20)

At least one door having a glass material, and an upper frame and a lower frame installed on upper and lower portions of the glass material; A floor hinge connected to one side of the lower frame of the door; A door frame having a hinge connected to one side of the upper frame of the door to rotatably support the door, and a pair of vertical frames having one side fixed to the wall by a plurality of bolts; At least one of the vertical frames, the through groove is formed in the longitudinal direction on the opposite side of the one side, the inside, the nut is fastened to each of the bolt, the ball is attached to one end and the other end A spring fitted to the bolt and a movable member configured to have a U-shaped cross section so as to surround the bolt and the nut, the spring and the ball, each having wings on both sides, and protrude out of the vertical frame through the through groove. and, Covers are further provided along the hinge side lengthwise ends at the front and rear surfaces of the glass material of the door, each having a semicircular cross section and having a fixed groove formed at both ends, corresponding to both ends of the main body. A pair of holders, which are attached to the glass material in the longitudinal direction at the position and having fixing grooves formed on one side thereof, and fixing portions having cross-sectional shapes corresponding to the cross-sectional shapes of the fixing grooves inserted into the fixing grooves in the longitudinal direction on both sides thereof, respectively. And a pair of elastic members having corrugations formed between these fixing parts, a plurality of columnar support members attached to the glass material between the holders, and one end of which is fitted to the support member and the other end of the Double safety door, characterized in that consisting of a spring in contact with the body. At least one door having a glass material, and an upper frame and a lower frame installed on upper and lower portions of the glass material; A floor hinge connected to one side of the lower frame of the door; A horizontal frame rotatably supporting the door with a hinge connected to one side of the upper frame of the door, a pair of outer vertical frames fixed to the wall, and at least one intermediate vertical frame disposed between the outer vertical frames And a door frame having a plate disposed between the intermediate vertical frame and one of the outer vertical frames. At least one of the intermediate vertical frames has a concave groove formed in a longitudinal direction on the side surface of the plate, a through groove is formed in a longitudinal direction on the side opposite to the side, and therein, in the concave groove A plurality of screw members inserted into and fixed through the side surface of the plate, fastening members respectively fastened to the screw members, springs having a ball attached to one end and the other end fitted to the fastening members, and the screw members. And a movable member having a U-shaped cross section so as to surround the fastening member, the spring and the ball, each having wings on both sides, and protruding out of the intermediate vertical frame through the through groove. . The double safety door of claim 1, wherein a washer is further provided between the bolt and the nut. The double safety door according to claim 1 or 2, wherein an end face of the protruding portion of the movable member is provided with a coupling groove for mounting the windscreen along the longitudinal direction of the movable member. The double safety door according to claim 1 or 2, wherein the glass material of the door is a double tempered glass which is integrally bonded by applying silicone and an adhesive between two glass plates. The double safety door according to claim 5, wherein letters, patterns, or patterns are formed between the two glass plates. The longitudinal end of the door opposite to the hinge further comprises a vertical guard, the vertical guard having at least one side having a U-shaped cross section so as to fit into the glass material of the door. And a mounting member having a mounting groove formed in a longitudinal direction, and an elastic member having a mounting protrusion having a cross-sectional shape corresponding to a cross-sectional shape of the mounting groove so as to be inserted into the mounting groove. The double safety door of claim 7, wherein the elastic member has a coupling groove on one side of the mounting protrusion opposite to the mounting protrusion, and a windshield is inserted into the coupling groove. The double safety door of claim 7, wherein the mounting groove has a portion of the upper end portion and the lower end portion cut off stepwise so as not to interfere with the upper frame and the lower frame of the door. The method of claim 7, wherein the mounting member is formed with at least one row of longitudinal grooves on both inner circumferential surfaces of the front and rear portions of the glass material, The glass material is a double safety door, characterized in that at least one row of longitudinal projections are formed on both outer peripheral surfaces of one end of the glass sheet, corresponding to the longitudinal grooves. The main body according to claim 2, wherein a cover is further provided along the longitudinal side end of the hinge at the front and rear surfaces of the glass material of the door, and the cover has a semicircular cross section and has fixing grooves formed at both ends thereof, and the main body. A pair of holders are longitudinally attached to the glass material at positions corresponding to both ends of the holder, and a pair of holders having fixing grooves formed on one side thereof, and both sides thereof correspond to the cross-sectional shapes of the fixing grooves so as to be inserted into the fixing grooves in the longitudinal direction, respectively. A pair of elastic members having a fixing portion having a cross-sectional shape and having wrinkles formed therebetween, a plurality of columnar supporting members attached to a glass material between the holders, and one end of the supporting member. Double safety doors, characterized in that the other end is composed of a spring in contact with the body. 12. The double safety door of claim 11, wherein the main body is in the form of a hollow tube and alternately formed with a peak and a valley on its outer surface in the longitudinal direction. 13. The double safety door of claim 12, wherein a spring groove is formed on an inner surface of the main body to easily position the spring. 12. The double safety door of claim 11, wherein the cover extends to an uppermost end of the upper frame of the door and a lower end of the lower frame. 12. The holder of claim 11, wherein the holder is an elongated pipe member having a rectangular cross section, and the upper end portion and the lower end portion of the holder are cut out so as not to interfere with the upper and lower frames of the door when the holder is attached to the door. Double safety doors, characterized in that. 12. The double safety door of claim 11, wherein a protrusion or a groove member is formed in the fixing grooves, and the fixing part is formed in the shape of a groove to which the protrusion or the groove member is fitted. 12. The double safety door of claim 11, wherein a fixing part is formed in the main body and the holder, and the fixing part of the elastic member is formed in the form of a groove. According to claim 1 or 2, wherein the cover is further provided along the longitudinal side edge of the hinge at the front and rear of the glass material of the door, respectively, the cover has an arc-shaped cross section in the longitudinal direction on the outer surface; The main body is alternately formed and has a fixed part at both ends, a pair of holders attached to the glass material in a lengthwise direction at a position corresponding to both ends of the main body, and a pair of holders having a fixed part at one side thereof, and a longitudinal direction at both sides, respectively. A pair of elastic members having a fixing groove for inserting the fixing portions and having a corrugation portion formed between the fixing grooves, a plurality of columnar supporting members attached to the glass material between the holders, and one end thereof Double safety door, characterized in that the other end is fitted to the support member consisting of a spring in contact with the main body. The double safety door of claim 1 or 2, further comprising a cover surrounding a top surface of the upper frame of the door or a bottom surface of the lower frame, and a horizontal guard formed on the cover. . 3. The fastening member of claim 2, wherein the fastening member comprises a fitting portion fitted to a protrusion projecting inwardly due to the concave groove in one side of the intermediate vertical frame, and a supporting portion extending to the opposite side of the fitting portion. A double safety door, characterized in that a through hole penetrating to the center of the fitting portion is formed.

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