KR20040088191A - Shelter device for lower portion of door - Google Patents

Abstract

PURPOSE: A lower closing device of a door is provided to improve the cooling and heating efficiencies by shielding a gap between the lower end of a door and the bottom when closing a door and not to interrupt the movement of an infant or the old and the weak. CONSTITUTION: The lower closing device of a door comprises: a housing(101) installed to the lower end of a door; a shield plate(102) installed to the inside of the housing(101) and moved vertically to cover up a gap between the lower end of the door and the bottom; and a driving device sensing the opening and closing of the door and moving the shield plate(102) downward when the door is closed. The driving device comprises: a driving plate(103) installed to the inside of the housing(101) and moved horizontally; a movable plate(105) converting the horizontal movement of the driving plate(103) into the vertical movement of the shield plate(102); a push rod(104) projected to one end of the housing(101) and inserted into the housing(101) when the door is closed to move the driving plate(103) horizontally, and screwed on one end of the driving plate(103) to control the projected length to one side of the housing by controlling the pitch; and a stopper(106) installed to the inside of the housing(101) and pressuring both sides of the push rod(104) with elasticity to prevent the movement of the pitch of the push rod(104).

Description

Door lower shield {SHELTER DEVICE FOR LOWER PORTION OF DOOR}

The present invention relates to a door installed in the doorway connecting the indoor and outdoor, and more particularly, to a device for shielding the lower end of the case type door.

Typically, doors installed indoors and outdoors, or between a room and a room may be divided into a sliding type and a sliding type. The sliding method is a structure in which the rail is installed on the bottom surface and a roller is installed at the bottom of the door to open and close the roller by sliding on the rail. The opening and closing method is a door and the door frame is coupled by a hinge, the door is a structure that is opened and closed by rotating around the rotation axis provided by the hinge. Since the door of the opening and closing method is a structure that is opened and closed by rotating, the door is not opened and closed well when the bottom of the door is in contact with the bottom surface, the door or the bottom surface is damaged when opened and closed by excessive force. Therefore, the bottom of the door of the opening type is coupled to the door frame in a state spaced apart by a certain height.

However, not only the cooling and heating efficiency is lowered due to the gap between the bottom and the bottom of the door, but also inconvenient to install the door to prevent the cooling and heating efficiency. Moreover, when the threshold is installed, there is a problem in that the movement of the infant or the elderly is inconvenient, and when the object is moved, it becomes an obstacle.

In order to solve the above problems, the present invention is to provide a device for shielding the gap between the bottom and the bottom surface of the door in the closed state.

In order to achieve the above object, the present invention is a housing installed in the lower end of the door; A shielding plate installed inside the housing to shield between the bottom and bottom surfaces of the door by linearly moving in a vertical direction; And a driving device which senses whether the door is opened or closed and moves the shielding plate downward while the door is closed. The drive device includes a drive plate installed inside the housing to linearly move in the horizontal direction; A rotation plate for converting the horizontal motion of the drive plate into a vertical motion of the shield plate; When the door is closed to protrude to one side of the housing, the door is inserted into the housing to horizontally move the driving plate, and is screwed to one end of the driving plate to adjust the pitch to adjust the length of the protruding side of the housing. Push rod; And a stopper installed inside the housing and provided with a predetermined elastic force to press both sides of the push rod to prevent the pitch of the push rod from flowing.

1 is an exploded perspective view showing a lower shield of the door according to an embodiment of the present invention;

2 is an exploded perspective view illustrating a state in which the push rod and the driving plate illustrated in FIG. 1 are coupled to each other;

3 is a partially cutaway perspective view illustrating the configuration of the stopper shown in FIG. 1;

Figure 4 is an exploded perspective view showing another form of the stopper of the components of the shield shown in Figure 1,

5 is an exploded perspective view showing another form of the stopper among the components of the shield shown in FIG. 1;

6 is an exploded perspective view showing a state in which the shield shown in FIG. 1 is installed at the bottom of the door;

FIG. 7 is an exploded perspective view illustrating another example in which the shielding device illustrated in FIG. 1 is installed at the bottom of the door;

8 is a front view showing the shielding device in the state shown in FIG.

9 is a front view showing the shielding device in the state shown in FIG. 5 is closed.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, if it is determined that the detailed description of the related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

1 to 4, the lower shielding device 100 of the door according to the preferred embodiment of the present invention includes a housing 101, a shielding plate 102 and a driving device, and the driving device is pushed. It consists of the rod 104, the drive plate 103, the rotation plate 105, and the stopper 106.

The housing 101 is completely open at one side and the bottom, and a predetermined cover 108 is coupled to the open one side. The housing 101 and the cover 108 are formed with screw holes 117 and 187, respectively, and are completely coupled by the screw 183. A through hole 111 through which the push rod 104 protrudes is provided at one end of the housing 101, and the driving support shaft 113a extends in the horizontal direction inside the other side of the housing 101. The driving support shaft 113a is provided with a through hole 113b in the longitudinal direction thereof, and the through hole 113b communicates with both side surfaces of the housing 101. In addition, a first support groove 115 extending in the longitudinal direction and having a predetermined width is formed at the lower end of the other side of the housing 101.

The shielding plate 102 shields the bottom and bottom surfaces of the door 10 (shown in FIG. 6) by reciprocating vertically in the housing 101. The shielding plate 102 is provided with a vertical guide hole 121 extending in the vertical direction so that the driving support shaft 113a passes. The vertical reciprocating motion of the shielding plate 102 is guided by the vertical guide hole 121 and the driving support shaft 113a. The shielding plate 102 includes a driving hole 123 extending in a horizontal direction at a position close to the vertical guide hole 121. A shield plate 129 of a predetermined material may be attached to a lower end of the shield plate 102. The shielding plate 129 may be configured in various ways such as a metal material, a rubber material in consideration of the use, cost, etc. of the door. A second support groove 127 is formed at an upper end of the shielding plate 102 and extends in the lengthwise direction.

The driving device detects whether the door is opened or closed, and moves the shield plate 102 downward in the closed state. When the door is closed, the driving plate 103 is horizontally moved by the push rod 104, and the link plate 105 performs the horizontal movement of the driving plate 103 by the vertical movement of the shielding plate 102. Will be converted to.

1 and 2, the push rod 104 includes a protrusion 141 protruding through a through hole 111 formed at one end of the housing 101, and a length direction at an end of the protrusion 141. It consists of a stopper portion 143 extending in the longitudinal direction and the pitch portion 145 extending in the longitudinal direction from the end of the stopper portion 143. The protrusion 141 is configured in a cylindrical shape but is not limited to the shape. The stopper part 143 has a cross section formed of a square, but may be formed of another shape of a polygon, for example, a regular hexagon or a regular octagon. The pitch portion 145 is formed in a cylindrical shape, the outer peripheral surface is formed with a thread. When the door is closed, the push rod 104 is pushed into the housing 101 by pressing the protrusion 141 into the door frame.

The driving plate 103 extends in a horizontal direction, the horizontal guide hole 131 through which the driving support shaft 113a penetrates, a driving piece 133 extending upwardly at an upper end, and one side end of the push rod 104. The fastening part 137 is provided with a screw hole 139 to which the pitch part 145 is screwed. When the push rod 104 is retracted, the driving plate 103 is guided by the horizontal guide hole 131 and the driving support shaft 113a to move horizontally. Meanwhile, as the pitch portion 145 of the push rod 104 adjusts the pitch coupled to the screw hole 137, the length of the protrusion 141 protruding toward one end of the housing 101 is adjusted. do. When the protruding portion 141 protrudes relatively long, the horizontal moving distance of the driving plate 103 becomes long, and when the protruding portion 141 protrudes relatively short, the horizontal moving distance of the driving plate 103 becomes short. .

On the other hand, the shielding device 100 after adjusting the coupling pitch of the push rod 104 and the screw hole 139, the stopper 106 for preventing the coupling pitch is changed while increasing the number of opening and closing operations of the door. Equipped. The stopper 106 is installed inside one side of the housing 101 so that the stopper portion 143 of the push rod 104 is positioned on the stopper 106. Referring to FIG. 3, the stopper 106 includes a stopper housing 161, a pair of coil springs 169, and a stopper plate 165. The stopper housing 161 has an opening 163 formed at both ends thereof with a closed end and a stopper part 143 of the push rod 104 is positioned at the center thereof, and the openings 163 are formed at both sides of the opening 163. A coil spring 169 having one end supported by the inner end of the stopper housing 161 is accommodated, and the stopper plate 165 is in close contact with each other end of the coil spring 169. The stopper plate 165 is configured to face each other to receive the elastic force of the coil spring 169 to pressurize the outer circumferential surface of the push rod 104, preferably both sides of the stopper portion 143 having a polygonal cross section. do. Therefore, it is prevented to flow after the pitch in which the push rod 104 and the screw hole 139 are coupled is set. On the other hand, the stopper plate 165 is a pressing piece (165a) for pressing the push rod 104 by the elastic force of the coil spring 169, and the pressing piece (in the longitudinal direction of the push rod 104) ( Both ends of 165a are formed of bending pieces 165b that are bent into the stopper housing 161. That is, the ends of the stopper plate 165 facing each other are bent in a direction away from each other.

When the push rod 104 needs to be replaced, when the push rod 104 is removed from the screw hole 139 and moved in the longitudinal direction, the push rod 104 is separated from the housing 101, and the stopper plate 165 is separated from each other. Close contact. When the new push rod 104 is introduced in the longitudinal direction through the through hole 111 of the housing 101, the end of the pitch portion 145 causes the bending piece 165b of the stopper plate 165 to both sides. While pushing out, it is coupled to the screw hole 139 through the opening 163 of the housing 101. That is, by bending both ends of the stopper plate 165, maintenance of the push rod 104 is facilitated.

4 shows a stopper 206 of another configuration. The stopper 206 illustrated in FIG. 4 includes a guide plate 261, a spring support rod 277, a pair of stopper plates 270, and a coil spring 275.

The guide plate 261 is attached to an inner surface of the housing 101, and includes a fixing piece 263a extending at both ends thereof facing each other and a guide rail 265 extending at both side ends thereof. . A fixing hole 263b is formed in the fixing piece 263a to fix the spring supporting rod 277.

The stopper plate 270 is provided with a pair, each side end of the sliding piece 267 and the sliding piece 267 vertical movement in the guide rail 265 under the guidance of the guide rail 265, respectively And a stopper piece 269 extending from one end of the push rod 104 to press the outer circumferential surface of the push rod 104 to press the outer circumferential surface of the push rod 104 on both sides of the push rod 104. On the other hand, the sliding piece 267 and the stopper piece 269 may be connected to the support piece 273 on both sides. In addition, although not shown, it is obvious that bending of both ends of the stopper piece 269 may facilitate replacement of the push rod 104.

The coil springs 275 are coupled to spirally surround the support rods 277, respectively, so that one end thereof is supported by the fixing piece 263a and the other end is supported by the stopper piece 269 so that the outer circumferential surface of the push rod 104 is fixed. It provides an elastic force to press.

5 shows a stopper 306 of yet another configuration. The stopper 306 shown in FIG. 5 is provided with leaf springs 369, each end of which is supported on the inner surface of the stopper housing 361 and bent in a direction facing each other on both sides of the opening 363. . The leaf spring 369 presses the outer circumferential surfaces of the push rod 104 passing through the opening 363 in a direction facing each other.

The rotation plate 105 includes a through hole 151 through which the driving support shaft 113a penetrates, and the first driving pin 153 on one surface thereof and the second driving pin 155 on the other surface thereof respectively extend.

When the driving support shaft 113a passes through the through hole 151, the rotation center of the rotation plate 105 is provided, and when the driving plate 103 is horizontally moved, the driving piece 133 is moved by the driving piece 133. The first driving pin 153 is rotated about the driving support shaft 113a. Therefore, the link plate 105 is rotated. The second driving pin 155 is accommodated in the driving hole 123 of the shielding plate 103, and when the link plate 105 rotates, the second driving pin 155 is in the second driving pin 155 in the driving hole 123. As a result, the shield plate 103 is vertically moved.

As shown in FIG. 6, the shielding device 100 includes a groove 15 formed at a lower end of the door 10 rotatably coupled to a door frame (not shown) by a hinge 11 provided at one side. Can be accommodated in In addition, although not shown, it is apparent that the door 10 may be installed on the inner side or the outer side. The coupling hole 113b penetrating the driving support shaft 113a is exposed through the coupling hole 181 of the cover, and a coupling hole 13 corresponding to the coupling hole 181 is formed in the door 10. It is fastened using the nut 17 or the like.

In addition, as shown in FIG. 7, fastening holes 23 may be formed at both ends of the door 20, and a fastening piece having another fastening hole may be installed and coupled to the shielding device 100. . That is, the fastening device 100 is accommodated in the groove 25 at the bottom of the door 20 and fastened by using a screw.

The operation of the shield 100 is shown in FIGS. 8 and 9. When the door is closed, the push rod 104 protruding in the open state of the door 10 moves in the direction of arrow ① so that the driving plate 103 moves horizontally. As the driving plate 103 moves horizontally, the first driving pin 153 is pushed by the driving piece 133 so that the link plate 105 rotates in the direction of an arrow ②, and the second driving pin is rotated. Reference numeral 155 moves the shielding plate 102 in the direction of arrow ③ by pressing the driving hole 123.

With the shield plate 102 moved downward, when the door 10 is opened, the shield plate 102 should be moved upward again into the housing 101. Referring to FIG. 1, the shielding device 100 includes a torsion spring 191 for upwardly moving the shielding plate 102. The torsion spring 191 extends from both ends of the coil 191a and the coil 191a coupled to the driving support shaft 113a, and the first support groove 115 of the housing 101 and the shielding. The first and second free ends 191b and 191c supported by the second support groove 127 of the plate 102 are provided to provide an elastic restoring force for moving the shielding plate 102 upward. Meanwhile, as the shielding plate 102 moves upward, the link plate 105 rotates so that the driving plate 103 moves horizontally. A tension spring 193 having one end fixed to a predetermined position on an inner surface of the housing 101 for smooth movement of the drive plate 103 and the other end fixed to a hole 135 formed at one end of the driving piece 133. ) May be further provided. Accordingly, when the door 10 is opened, the shielding plate 102 is moved upward by the torsion spring 191, and the driving plate 103 is horizontally moved by the tension spring 193 to allow the push rod 104 to move. ) Is projected out of the housing 101.

The moving distance of the shielding plate 102 depends on the coupling pitch of the push rod 104 and the screw hole 139. That is, when the protruding length of the push rod 104 is longer, the moving range of the driving plate 103 and the link plate 105 is increased, and the moving distance of the shielding plate 102 is also increased. Therefore, the movement range of the shielding plate 102 can be appropriately adjusted according to the gap size between the lower end portion and the bottom surface of the door.

As shown in FIG. 1, the lower shielding device configured as described above includes a washer 195 interposed between the shielding plate 102, the driving plate 103, and the link plate 105, respectively. Rotation can be made smoothly. In addition, components such as the housing 101, the shielding plate 102, the driving plate 103, and the link plate 105 may be manufactured by a press working method using a metallic material such as stainless steel or an injection method using a synthetic resin. It will be readily understood by those skilled in the art. In selecting the materials of the above components, considering the durability and cost, such as damage due to corrosion due to long-term use can be appropriately applied according to the product.

In the foregoing detailed description of the present invention, specific embodiments have been described. However, it will be apparent to those skilled in the art that various modifications can be made without departing from the scope of the present invention.

As described above, the shielding device according to the present invention shields the gap between the lower end and the bottom surface in the state in which the door is closed, thereby improving the cooling and heating efficiency as well as eliminating the need for the threshold of the infant or the elderly. Obstacles were removed when moving and moving objects.

Claims (12)

A housing installed at the lower end of the door; A shielding plate installed inside the housing to shield between the bottom and bottom surfaces of the door by linearly moving in a vertical direction; And Sensing whether the door is opened or closed, and including a driving device to move the shielding plate downward while the door is closed; The drive device, A driving plate installed inside the housing and linearly moving in a horizontal direction; A rotation plate for converting the horizontal motion of the drive plate into a vertical motion of the shield plate; When the door is closed to protrude toward one end of the housing, the door is inserted into the housing to horizontally move the driving plate, and is screwed to one end of the driving plate to adjust the pitch to adjust the length of the protruding side of the housing. Being a push rod; And And a stopper installed inside the housing and receiving a predetermined elastic force to press both sides of the push rod to prevent the pitch of the push rod from flowing. The method of claim 1, wherein the push rod, A protrusion protruding to one side of the housing; A stopper portion extending from one end of the protruding portion by a predetermined length in a longitudinal direction, the cross section of the longitudinal direction being formed in a polygonal shape and pressed by the stopper; And The lower shield of the door, characterized in that it comprises a pitch portion extending in the longitudinal direction from the end of the stopper portion, the thread formed on the outer peripheral surface. The method of claim 1, wherein the stopper, A spring housing attached to an inner side of the housing and having a closed end at both ends thereof and having an opening through the push rod at the center thereof; A pair of coil springs respectively accommodated in the spring housing at both sides of the opening of the spring housing and having one end supported at the closed end of the spring housing; And And a pair of stopper plates each of which is in close contact with the other end of the coil spring and is provided with an elastic force of the coil spring to press the outer circumferential surface of the push rod passing through the opening on both sides. The method of claim 3, wherein The pair of stopper plates facing each other is bent in the direction in which both ends are separated from each other along the longitudinal direction of the push rod. The method of claim 1, wherein the stopper, A guide plate attached to an inner side of the housing, and having both ends bent to face each other to form a fixing piece, and both side ends to extend to face each other to form a guide rail; A spring support rod whose both ends are fixed to the fixing piece; Each side end is composed of a sliding piece that is guided by the guide rail vertically in the guide rail, and a stopper piece that is bent from one end of the sliding piece to press the outer peripheral surface of the push rod, both sides of the push rod A pair of stopper plates each for pressing the outer circumferential surface of the push rod; And A lower shield of the door, characterized in that it is coupled to surround the support rods in a spiral manner, one end being supported by the fixing piece and the other end being supported by the stopper piece to provide elastic force. The method of claim 5, The stopper plate further includes a through hole through which the spring support rod passes. The method of claim 1, wherein the stopper, A spring housing attached to an inner side of the housing and having an opening through the push rod at the center thereof; And a pair of leaf springs supported by the side walls of the spring housing on both sides of the opening of the spring housing, respectively, and bent in a direction facing each other to press the outer circumferential surface of the push rod passing through the opening from both sides. Lower shield of the door. According to claim 1, At least one driving support shaft extending from a predetermined position of the housing in a direction perpendicular to the direction of movement of the shielding plate and the driving plate; The driving plate includes a horizontal guide hole extending in a horizontal direction and through which the driving support shaft passes, and a driving piece extending from one end to the outside; The rotating plate has a through hole through which the driving support shaft penetrates, rotates about the driving support shaft, and rotates about the driving support shaft in a predetermined angle range by the driving piece as the driving plate moves horizontally. A first driving pin is provided at a predetermined position on one surface thereof, and a second driving pin is protruded at a position forming a predetermined angle with the first driving pin about the through hole at the other surface; The shielding plate extends in a vertical direction and includes a vertical guide hole through which the driving support shaft passes, and a driving hole extending in a horizontal direction and passing through the second driving pin; And the driving plate, the rotation plate and the shielding plate are sequentially coupled to the driving support shaft. The method of claim 8, At least one slip washer is further coupled between the drive plate and the pivot plate or between the pivot plate and the shield plate. The method of claim 7, wherein A torsion spring further comprising a coil in the housing and first and second free ends extending from both ends of the coil, The coil is coupled to the driving support shaft, the first or second free end is supported by the housing, and the second or first free end is supported by the shielding plate, Lower shielding device of the door, characterized in that to provide a resilient restoring force to move the shielding plate upwards when the door is open. The method of claim 8, The housing further includes a coupling hole penetrating both surfaces, and the coupling hole penetrates through the driving support shaft. According to claim 1, One end is fixed to the inner surface of the housing, the other end is fixed to the drive plate, the lower part of the door further comprises a tension spring for providing an elastic restoring force in the direction in which the push rod protrudes when the door is opened Shield.