KR101358945B1 - Caterpillar of moth-proof net for door - Google Patents

Abstract

The present invention relates to a caterpillar structure for a screen door. More specifically, by forming an engaging unit on a connection projection which is to connect a plurality of caterpillars, when caterpillars are continuously connected, the present invention is able to prevent the caterpillars from being separated from each other due to conditions such as external impacts or twisting of the caterpillars and thus improves the stability of the opening/closing operation of a screen door.

Description

Caterpillar structure of door screens {Caterpillar of Moth-proof net for door}

The present invention relates to a caterpillar structure of the door insect screen, and more particularly, by forming a latch on the protruding connecting projection to connect a plurality of caterpillar, in the continuous connection of the caterpillar, such as external impact or torsion of the caterpillar Accordingly, it relates to a caterpillar structure of an insect screen for doors, which prevents the caterpillars from being separated from each other, thereby preventing the caterpillars from being separated from each other, thereby improving the stability of the screen opening and closing operation.

In general, the insect screen is designed to maintain the ventilation of the room in the summer and to prevent the insects from entering the room. The insect screen is composed of a mesh body and a frame supporting the circumference of the mesh body. The fixed type is mainly used for windows, and since the opening operation is impossible, it has the disadvantage of making it impossible or difficult for people to evacuate through the window in an emergency such as a fire.

On the other hand, the open screen is made of a structure that can be opened and closed to allow escape from the indoor to the outdoor in an emergency, and is divided into a rotary type and a slide type according to the opening and closing method.

Among them, the rotary screen is rotatably connected to one side of the frame by a hinge on the window frame or the door frame like a general door, and is provided with a locking device at the other end, and is locked using the locking device in the closed state, and is opened. The city is operated by rotating and opening.

Here, in the insect screen installed in doors, windows, etc. in order to block pests, there is a retractable insect screen that allows the insect to hit and walk the insect screen as needed. An example of a retractable insect screen that is installed in a place where a human traffic is located such as a front door is a 'door insect screen' of Korean Utility Model Registration No. 354559 (announced June 25, 2004).

Since the screen does not exist when the mesh is opened by the application of the caterpillar and the caterpillar receiver, the problem such as being caught on the threshold or stuck in the threshold could be solved. There is a disadvantage in that the door is narrower by the application of the unit, the construction cost is increased.

That is, the insect screen is narrowed in the entrance area by the frame forming the door frame when installed in the door, the prior art described above has four configurations to narrow the access area on the vertical side (vertical door frame, horse stand, opening and closing caterpillar) The caterpillar, which moves when opening and closing the insect screen, especially the caterpillar, has a large volume and has a certain weight, so that the caterpillar is easily separated when a collision occurs with the vertical door frame.

Korea Utility Model Registration No. 20-354559 Republic of Korea Patent Publication No. 10-1005256 Republic of Korea Patent Publication No. 10-2013-0013022

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art,

Since a plurality of caterpillars are formed in the projections protruding to connect, the caterpillars are prevented from being separated from each other due to external shock or caterpillar twisting during continuous connection of the caterpillars, thereby preventing the caterpillar from being separated from each other. It is an object of the present invention to provide a caterpillar structure of a door screen for improved operation stability.

In order to achieve the above object, the present invention is provided in the structure of the caterpillar is provided in the door frame is installed at the lower end of the insect screen that is movable and opened and closed according to the rotation function, and guides the insect screen when the left and right opening and closing of the insect screen,

The caterpillar is connected to each other in series is continuously flowed upward while being transported along the insect screen, the connection hole is formed to be connected to the other caterpillar on one side, the connection protrusion is formed to be inserted into the connection hole of the other caterpillar,

The outer periphery of the connecting protrusion relates to the caterpillar structure of the door screen insect net, characterized in that the latch is formed to protrude so as not to be separated from the connection hole when the caterpillar is twisted.

As described above, the caterpillar structure of the door insect screen of the present invention is formed by a latch on the protruding connecting projection to connect a plurality of caterpillar, when the caterpillar continuous connection, such as external impact or torsion of the caterpillar Accordingly, the caterpillars are not separated from each other, thereby preventing them from being separated, thereby improving the stability of the screen opening and closing operation.

1 is an assembled perspective view showing a insect screen according to an embodiment of the present invention,
Figure 2 is an exploded perspective view showing a insect screen according to an embodiment of the present invention,
Figure 3 is a perspective view of a plurality of caterpillar according to an embodiment of the present invention,
Figure 4 is a front view showing one caterpillar according to an embodiment of the present invention,
5 is a plan view showing one caterpillar according to an embodiment of the present invention.

The present invention has the following features in order to achieve the above object.

The present invention is provided in the structure of the caterpillar is provided in the door frame is installed at the lower end of the insect screen that is movable and open and close according to the rotation function, and guides the insect insect net when the left and right opening and closing of the insect screen,

The caterpillar is connected to each other in series is continuously flowed upward while being transported along the insect screen, the connection hole is formed to be connected to the other caterpillar on one side, the connection protrusion is formed to be inserted into the connection hole of the other caterpillar,

The outer periphery of the connecting protrusion is characterized in that the latch is projected so as not to be separated from the connection hole when the caterpillar is twisted.

The present invention having such characteristics can be more clearly described by the preferred embodiments thereof.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Before describing in detail several embodiments of the present invention with reference to the accompanying drawings, it is to be understood that the present invention is not limited to the details of construction and the arrangement of components shown in the following detailed description or illustrated in the drawings will be. The invention may be embodied and carried out in other embodiments and carried out in various ways. It should also be noted that the device or element orientation (e.g., "front," "back," "up," "down," "top," "bottom, Expressions and predicates used herein for terms such as "left," " right, "" lateral, " and the like are used merely to simplify the description of the present invention, Or that the element has to have a particular orientation. Also, terms such as " first "and" second "are used herein for the purpose of the description and the appended claims, and are not intended to indicate or imply their relative importance or purpose.

Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

1 is an assembled perspective view showing a insect screen according to an embodiment of the present invention, Figure 2 is an exploded perspective view showing a insect screen according to an embodiment of the present invention, Figure 3 is a plurality of caterpillar according to an embodiment of the present invention Figure 4 is a perspective view, Figure 4 is a front view showing one caterpillar according to an embodiment of the present invention, Figure 5 is a plan view showing one caterpillar according to an embodiment of the present invention.

As shown in Figures 1 to 5, the caterpillar 70 structure of the door screen insect net of the present invention is formed so that the plurality of caterpillar 70 is not easily separated according to the torsion of the caterpillar 70 to support the lower end of the insect screen to do,

First, as shown in FIGS. 1 and 2, the insect screen includes a door frame 10 having an upper horizontal door frame 11, a right vertical door frame 17, and a left horizontal door frame 12, and an opening and closing support 20. And a stem 30, a mesh 40, a spring 50, a locking device 60, a guide piece 19 and a caterpillar 70.

The door frame 10 includes an upper horizontal door frame 11 having a guide groove 11a formed downward, and two left and right vertical door frames 12 and 17 connected downwardly at both ends of the upper horizontal door frame 11. For example, it is assembled in a U-shape using two L-shaped couplers 13. Here, each door frame (11, 12, 17) is marked with a scale as shown, it is possible to cut to the exact dimensions in the field as needed. In addition, the right and left door frame 17 is a configuration in which a hollow portion 18, which is accommodated in the caterpillar 70, and a mesh joint arm portion (not shown) to which the mesh joint 91 can be coupled in a slide form. Will be described together with the description of the caterpillar 70 below.

The opening and closing column 20 is inserted and mounted to move freely from side to side in a state spanned between the guide groove 11a of the upper horizontal door frame 11 and the guide groove of the lower U-shaped caterpillar 70. Preferably, the suspension roller 21 is mounted on the upper end of the opening and closing column 20 so as to be able to move well without friction in the suspended state by being guided by the guide groove 11a of the upper horizontal door frame 11. Such suspension rollers may be referred to, for example, "suspension roller blocks for insect screens" of the Korean Utility Model Registration No. 419330 (June 19, 2006). In addition, the opening and closing column 20 is formed with a joint groove (not shown) for fixing the net, and is provided with a joint (not shown) detachable to the joint groove. In order to fix the mesh to the opening and closing column 20, first, the mesh is introduced into the joint groove, and if the joint groove is filled with the next joint, the mesh is pinched.

The stand 30 is disposed between the left and right door frame (12, 17) between the guide groove 11a of the upper horizontal door frame 11 and the guide groove of the lower caterpillar 70, like the opening and closing column 20 It is mounted so that it can freely rotate left and right while being over. In the illustrated embodiment, the stem 30 is shown an example disposed between the right vertical door frame 17 and the opening and closing column 20. Preferably, the suspension roller 31 is mounted on the upper end of the horse carriage 30 so as to be able to move well without friction in the suspended state by being guided by the guide groove 11a of the upper horizontal door frame 11.

The mesh 40 is a conventional mesh woven into a mesh to prevent the introduction of pests, the middle portion of which is fixed to the end 30, one end is fixed to the opening and closing column 20, the other end of the right vertical door frame (17) It is fixed to, and is opened and closed by winding and unwinding on the stand 30 in accordance with the left and right movement of the opening and closing column 20.

The spring 50 provides a rotational force to the rod 30 toward the opening of the mesh 40 is wound around the net 30 to the net (40). In the illustrated embodiment, the spring 50 is inserted into the stem 30 in the form of a circular tube, and the top of the spring 50 does not rotate even if the stem 30 rotates on the top of the spring 50. Fixing holding (51: in the embodiment shown, the suspension roller also serves as a fixed holding) to be maintained in the guide groove (11a) in a non-state, is mounted on the lower end of the spring (50) When the rotation is rotated to maintain the lower end of the spring (50) to the stem 30 so that the lower end of the spring 50 is inserted into the rotation holding (52).

In accordance with such a coupling relationship, when the rod 30 is rotated toward the unfolding of the mesh 40, the other end of the spring 50 is wound around the spring 50 in a fixed state so that the spring 50 is wound. Is stored.

In addition, the state in which the elastic force 50 is stored in the spring 50 is a state in which the mesh 40 is unfolded by pulling the opening and closing column 20 to the left vertical door frame 12, and in this state, the opening and closing column 20 is opened. When it is released, the spring 50 is unrolled while the stand 30 is rotated and the mesh 40 is wound around the stand 30 so that the opening and closing column 20 moves to the right vertical door frame 17. It is wound up and opened.

Here, the expanded state of the mesh 40 is a state in which the elastic force is stored by forcibly turning the spring 50, so to maintain the expanded state of the mesh 40 as it is, the opening and closing column 20 moves to the right vertical door frame 17. It should be limited to try to move, for this purpose the screening device is provided with a locking device (60). In the illustrated embodiment, an example in which a conventional locking device that is easy to lock and release is installed between the opening and closing column 20 and the left vertical door frame 12 is illustrated.

The caterpillar 70 is a member formed as a bendable track by assembling a plurality of units rotatably with each other.

Here, one end of the caterpillar 70 is a fixed end and the other end is a free end. As shown in the illustrated embodiment, it is preferable that the left end of the caterpillar 70 is a fixed end fixed to the opening and closing column 20, and the right end thereof is a free end extending to the right vertical door frame 17, and in more detail below. Explain.

The right vertical door frame 17 provides a space in which the caterpillar 70, which is bent and raised in the opening and closing process of the mesh 40, is accommodated. That is, the right vertical door frame 17 has a hollow portion 18 therein to accommodate the caterpillar 70 entering and bending. In addition, at the lower end of the right vertical door frame 17, a bending accommodating part (not shown) in which the bending radius of the bending part (corresponding to the free end) of the caterpillar 70 is accommodated is formed. The bending accommodation portion can be formed by making the lower end of the right vertical door frame 17 shorter in length by the opening and closing column 20 or the left vertical door frame 12 by the length corresponding to the bending accommodation portion. That is, even if the caterpillar 70 can be bent upwards, it is difficult to bend straight to 90 degrees vertically, and the bending portion must have a bending radius of a certain size, and the right vertical door frame 17 is large enough to accommodate such bending radius. The lower side may be formed shorter than the length of the opening and closing column 20 or the left vertical door frame 12 by the length to form the bent accommodation portion.

Preferably, the guide piece 19 for guiding the flexible upward bending of the caterpillar 70 is attached to the bent accommodation portion of the right vertical door frame 17. The guide piece 19 is shaped into a shape corresponding to the bending radius of the caterpillar 70, for example, made of plastic, or the like, and is detachably attached to the lower end of the right vertical door frame 17, for example.

On the other hand, the insect screen of the present invention may be applied to the pedestal 73 supporting the caterpillar 70 between the left and right door frame 12, 17 on both sides. This pedestal 73 is not a protruding, grooved member like a typical lower side door frame (not shown), but the caterpillar 70, which is folded and unfolded as a substantially flat plate-like member so that there is no catch or groove, is in direct contact with the floor. It serves to prevent and smoothly guide the folding of the caterpillar (70).

Here, by forming a low height protrusion 73a on the upper surface of the pedestal 73 so as to be naturally inserted into the bottom recess of the caterpillar 70, it is possible to guide the unrolled caterpillar 70. Although it exaggerated largely and showed in figure so that the structure of the pedestal 73 can be clearly understood, what is necessary is just to form it in the near flat plate which is slightly convex actually.

On the other hand, by connecting the lower end of the left and right door frame 12, 17 using the guide piece 19, the left and right door frame (12, 17), the upper horizontal door frame 11 and While the pedestal 73 forms a rectangular frame as a whole, the pedestal 73 reinforces the structural strength of the insect screen while the screen is easily attached to the door, but the pedestal 73 has a left and right door frame ( It is also possible to attach to the floor (bonding, etc.) without connecting to 12,17). In addition, the scale is displayed on the surface of the pedestal 73, it is also possible to cut and install the custom in the field.

As shown in Figures 3 to 5, the caterpillar 70 structure of the door screen of the present invention has a substantially U-shaped cross-section, the plurality of which are connected in succession to each other at least bend upward and open the upper side. The caterpillar 70 is formed in an approximately U-shape so that the lower ends of the mesh 40, the stem 30, and the opening and closing column 20 are moved left and right in the state where they are inserted into the U-shaped guide grooves 74. In order to guide the naturally in cooperation with the upper side door frame 11 and at the same time to block the gap between the bottom and the mesh 40 to prevent the inadvertent entry of the pest.

Here, the caterpillar 70 is to be bent upward to open the mesh 40, so that the caterpillar 70 is bent upward, so as to be accommodated in the right vertical door frame 17.

In addition, as shown in FIGS. 3 and 4, the caterpillar 70 has a connection hole 71 formed at one side to be connected to the other caterpillar 70, and the other side is inserted into the connection hole 71 of the other caterpillar 70. The connecting protrusion 72 is formed to protrude, that is, the connecting hole 71 is formed at the fixed end of the caterpillar 70, and the connecting protrusion 72 is formed at the other end of the free end.

In addition, the fixed end of the caterpillar 70 is formed in a triangular shape, the connection hole 71 is formed in the vertex, the inner surface is inserted so that a part of the caterpillar 70 is inserted when connected to the other caterpillar 70. Groove 76 is formed. That is, the free end of the other caterpillar 70 is provided in the inner insertion groove 76 of the fixed end.

In addition, the free end of the caterpillar 70 is formed in a circular arc shape so that when the caterpillar 70 is bent upwards, it is bent flexibly, the stopper 77 is so that other caterpillar 70 is not bent downward other than the top Protruding from the outer surface.

On the other hand, the outer periphery of the connecting projection 72, as shown in Figure 5, when the caterpillar 70 is twisted, the locking projection 75 is formed to protrude so that the connecting projection 72 is not separated from the connection hole 71, the latch 75 is formed to protrude on the outer periphery of the end portion of the connecting projection 72, the connecting projection 72 is formed in a shape similar to "♀" on the plane.

In addition, the connecting protrusion 72 is formed in a cylindrical shape so that the caterpillar 70 smoothly flows upwards, and the connecting hole 71 is in the form of a connecting protrusion 72 in which the catch 75 is protruded. By forming the same as, the connection projection 72 is easily coupled.

As such, since the connecting protrusion 72 and the connecting hole 71 are formed as described above, the connecting protrusion 72 is easily inserted into the connecting hole 71, and after insertion, the caterpillar 70 rotates in a straight line. When the locking projections 75 of the connection protrusions 72 are supported on one surface of the fixed end, the connection protrusions 72 are not separated from the connection holes 71.

10: door frame 11: upper side door frame
11a: Information Home 12: Left and Right Door Frame
13: End 14: Cover
17: right vertical door frame 18: hollow part
19: Guide Pr. 20: Opening and Closing Columns
21, 31: Suspension roller 30: Horse stand
40: net 50: spring
51: fixed holding zone 52: rotating holding zone
60: locking device 70: caterpillar
71: connecting hole 72: connecting projection
73: base 73a: protrusion
74: guide groove 75: brace
76: insertion groove 77: stopper

Claims (3)

In the structure of the caterpillar 70 which is provided in the door frame and is installed at the lower end of the insect screen that is movable and opened and closed according to the rotation function, and guides the insect insect net when the left and right opening and closing movement of the insect screen,
The caterpillar 70 is connected to each other in series and continuously flows along the insect screen, the connection hole 71 is formed to be connected to the other caterpillar 70 on one side, the other side of the other caterpillar 70 The connecting protrusion 72 is formed to protrude so as to be inserted into the connecting hole 71.
Caterpillar structure of the door screen insect net, characterized in that the latch 75 is formed to protrude from the outer periphery of the connecting protrusion 72 so as not to be separated from the connection hole 71 when the caterpillar 70 is twisted.
The method of claim 1,
The connecting protrusion 72 is formed in a cylindrical shape so that the caterpillar 70 smoothly flows upward, and the locking protrusion 75 is formed to protrude from the outer periphery of the end portion of the connecting protrusion 72, thereby connecting at the connection hole 71. Caterpillar structure of the door screen for doors, characterized in that not separated.
3. The method according to claim 1 or 2,
The connection hole 71 is formed in the same manner as the shape of the connecting projection 72 protruding the clasp 75, the connection projection 72 is caterpillar structure of the door screen screen, characterized in that the coupling is easy.

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