WO2024242368A1 - Spring mounting structure of hand-jamming prevention frame for elevator - Google Patents

Abstract

A spring mounting structure of a hand-jamming prevention frame for an elevator, according to the present invention, comprises: a fixed frame that is installed fixed to a framework and has a guide piece protruding diagonally toward a plate from an end of a support protruding from one surface of the plate; and a blocking frame which has a slot open to one side and is fitted into the guide piece of the fixing frame and slides along the guide piece. The fixing frame has an installation recess that is partially cut into the support and guide and gradually narrows from the guide toward the support. The fixing frame includes: a spring-receiving member that has inclined surfaces formed on both sides so as to correspondingly fit into the installation groove and has catching protrusions that are formed on both sides and catch on the lower portion of the guide piece; and a compression spring that has one end in close contact with the spring-receiving member and the other end inserted into the slot of the blocking frame and moves the blocking frame toward the plate of the fixing frame.

Description

Spring-loaded structure of anti-hand-trapping frame for elevator

The present invention relates to an anti-hand-trapping frame for an elevator, and more specifically, to a spring-loaded structure of an anti-hand-trapping frame for an elevator that enables smooth operation in a narrow space.

In general, a sliding door is a door that opens and closes by sliding sideways. These sliding doors are used in various places such as windows, doors, and elevators.

A typical sliding door consists of a door that slides sideways and a frame frame that forms a space into which the door is inserted. Here, a gap is formed between the door and the frame frame so that they do not interfere when the door is slid. However, safety accidents such as fingers getting caught in this gap and skin being scratched occur. In particular, accidents occur more frequently in young children due to curiosity and play.

A patent for solving this problem is registered as No. 10-1442577. It allows the finger to be removed by moving the tilting plate backward to widen the gap when the finger is caught in the gap of the door. However, this structure takes action when the finger is already caught, so there is a problem in that it does not prevent the problem.

In addition, registered utility model No. 20-0332674 prevents fingers from getting caught by installing a 'ㄷ' shaped rubber close to the door, but there is still a problem of fingers getting caught as it does not completely block the problem.

In addition, Patent Registration No. 10-1732420 has a structure that blocks a gap by comprising a fixed portion formed to be attached to the outer wall frame of an elevator entrance and the elevator frame, a hinge-joining groove formed integrally with the fixed portion and having a partially open cylindrical internal shape, a catch portion formed integrally with the fixed portion and formed to catch a spring, a rigid fluid portion having a catch portion formed integrally with a connecting rod that is fitted into the hinge-joining groove to form a hinge joint and is formed to catch a spring, a soft fluid portion connected to the opposite edge of the connecting rod in the rigid fluid portion, and a spring that is connected by hooking both ends of the catch portion of the fixed portion and the catch portion of the hard fluid portion. However, since the sliding door and the soft fluid portion are always in contact, there is the inconvenience of having to regularly replace the soft fluid portion due to wear, and there are problems of energy loss and frictional heat generated due to friction, and there are problems of scratches occurring on the door.

In addition, Patent Registration No. 10-2347346 includes a fixed frame fixedly installed on a frame frame, in which a guide member protruding diagonally in the direction of the plate is formed from an end of a support member protruding from one side of the plate; a blocking frame having a slot opened diagonally on one side and fitted into the guide member of the fixed frame and sliding along the guide member; and a return means for maintaining the blocking frame in a state of being close to the plate direction of the fixed frame; wherein the return means is formed of a spring having a 'ㄷ' shaped fixed end that surrounds the support member and a free end that extends diagonally from one end of the fixed end and is fitted into the blocking frame, so that no interference occurs at all when the door is operated, thereby enabling smooth operation, and scratches, etc. do not occur, and in particular, the blocking frame blocks the gap at the moment when a finger is about to get caught, so that the finger can no longer enter, but since the return means is formed of a plate spring, it is structurally difficult to control the elastic coefficient, so that there is a problem that the movement of the blocking frame is not smooth.

The present invention was created to solve the problems of the prior art, and the purpose is to provide a spring-mounted structure for an elevator anti-finger-trapping frame that enables a coil spring to be mounted even in a very narrow space, thereby achieving smooth sliding operation.

The spring-mounted structure of the anti-hand-trapping frame for an elevator according to the present invention to achieve the above purpose is as follows:

A fixed frame fixedly installed on a frame frame, wherein a guide member protruding diagonally in the direction of the plate is formed from the end of a support member protruding from one side of the plate;

A blocking frame having a slot formed open on one side and fitted into a guide member of a fixed frame and sliding along the guide member;

The above fixed frame forms an installation groove by partially cutting the support and guide, and gradually narrows from the guide to the support.

A spring receiving member formed with inclined surfaces on both sides to fit into the above-mentioned installation groove and with a protruding catch formed on both sides to catch on the lower part of the guide member;

It is characterized by comprising a compression spring, one end of which is in contact with a spring holder and the other end is inserted into a slot of a blocking frame to move the blocking frame toward the plate of a fixed frame.

In addition, the spring holder is characterized by having a seating groove formed into which one end of the compression spring is partially inserted.

In addition, a fixed piece is further provided that fits into the slot of the above blocking frame;

The two ends of the above compression spring are bent in the axial direction to form a protruding fixed pin,

The spring holder and fixed member are characterized in that pinholes are formed in a direction facing each other, and a fixing pin of a compression spring is inserted and installed.

The above-mentioned settling groove and pin hole are formed in two or more numbers, and the above-mentioned compression spring is provided in one or more numbers and is installed by being fitted into one or more of the above-mentioned settling grooves and pin holes.

The spring-mounted structure of the anti-hand-trapping frame for an elevator according to the present invention has the effect of allowing the compression spring to be installed in a very narrow space, thereby enabling the blocking frame to operate smoothly.

In addition, since it can be assembled and disassembled by fitting, it can be installed quickly and easily, and since it has a structure that can sufficiently withstand the compression force of the spring, it can be manufactured with synthetic resin, which has the effect of significantly reducing the manufacturing cost.

Figure 1 is an installed cross-sectional view of an elevator hand-trapping prevention frame according to the present invention.

Figure 2 is a perspective view showing the spring-mounted structure of the anti-finger pinching frame according to the present invention.

Figure 3 is a cross-sectional view showing the spring-mounted structure of the anti-finger pinching frame according to the present invention.

Figure 4 is an exploded perspective view showing the spring-mounted structure of the anti-finger pinching frame according to the present invention.

Figure 5 is an exploded cross-sectional view showing the spring-mounted structure of the anti-hand-jamming frame according to the present invention.

Figure 6 is a perspective view showing the structure of a fixed frame according to the present invention.

Figure 7 is a perspective view showing the structure of a spring holder according to the present invention.

Figure 8 is a usage state diagram showing the operation process of the hand-trapping prevention frame according to the present invention.

FIG. 9 is a perspective view illustrating a compression spring structure according to another embodiment of the present invention.

Hereinafter, a preferred embodiment of a spring-loaded structure of an anti-hand-trapping frame for an elevator according to the present invention will be described in detail with reference to the attached drawings.

FIG. 1 is an installed cross-sectional view of an elevator hand-trapping prevention frame according to the present invention, FIG. 2 is a combined perspective view illustrating a spring mounting structure of a hand-trapping prevention frame according to the present invention, FIG. 3 is a combined cross-sectional view illustrating a spring mounting structure of a hand-trapping prevention frame according to the present invention, FIG. 4 is an exploded perspective view illustrating a spring mounting structure of a hand-trapping prevention frame according to the present invention, FIG. 5 is an exploded cross-sectional view illustrating a spring mounting structure of a hand-trapping prevention frame according to the present invention, FIG. 6 is a perspective view illustrating a structure of a fixed frame according to the present invention, and FIG. 7 is a perspective view illustrating a structure of a spring receiver according to the present invention.

As illustrated in these drawings, the spring-mounted structure of the elevator hand-trapping prevention frame according to the present invention comprises: a fixed frame (10) fixedly installed on a frame frame (1), in which a guide member (13) is formed that protrudes diagonally in the direction of the plate (11) from an end of a support member (12) that protrudes from one side of the plate (11); a blocking frame (20) that is formed with a slot (21) that is opened on one side and is fitted into the guide member (13) of the fixed frame (10) and slides along the guide member (13); wherein the fixed frame (10) forms an installation groove (16) in which the support member (12) and the guide member (13) are partially cut off, but are formed to gradually narrow from the guide member (13) to the support member (12), and a spring receiver (30) that is formed with inclined surfaces (31) on both sides so as to be fitted in correspondence with the installation groove (16), and has a catch protrudingly formed on both sides with a catch protrusion (32) that catches the lower part of the guide member (13); It consists of a compression spring (40) that is first attached to a spring holder (30) and the other end is inserted into a slot (21) of a blocking frame (20) to move the blocking frame (20) toward the plate (11) of the fixed frame (10).

The above fixed frame (10) has a support member (12) vertically protruding from one side of a long plate (11), and a guide member (13) extending diagonally from the end of the support member (12), with the guide member (13) facing the plate (11). It is preferable that the guide member (13) formed in this manner be formed at an angle of 45° with respect to the plate (11), but this may vary depending on the environment. The end of the guide member (13) is spaced sufficiently apart from the plate (11) so that a blocking frame (20) can be installed therebetween. The support member (12) may be formed straight or curved in a vertical or diagonal direction from the plate (11). A plurality of screw holes (14) are formed in the fixed frame (10) and fixed to the frame frame (1) by screws (2).

The above blocking frame (20) slides along the guide piece (13) of the fixed frame (10), and has a long bar shape with a slot (21) that is opened on one side formed long. The blocking frame (20) is inserted by fitting the guide piece (13) of the fixed frame (10) into the slot (21). The fixed frame (10) and the blocking frame (20) are assembled by positioning the slot (21) in the guide piece (13) and pushing it in while they are positioned parallel in the length direction. The blocking frame (20) assembled in this way can slide along the guide piece (13) toward the door (3). Here, the plate (11) of the fixed frame (10) is provided so that one end thereof extends along the extension line of the guide piece (13) to prevent the blocking frame (20) assembled to the fixed frame (10) from being separated from the guide piece (13).

And, the blocking frame (20) and the plate (11) located on the inner side of the guide member (13) are formed with slip surfaces (15) (25) parallel to the guide member (13) so that they are in close contact with each other and slide. By means of the slip surfaces (15) (25), when the blocking frame (20) slides, it slides while being supported once more by the slip surface (25) rather than relying solely on the guide member (13) and the slot (21), thereby achieving more stable sliding.

Meanwhile, the fixed frame (10) has a number of installation grooves (16) formed at regular intervals by partially cutting the support member (12) and the guide member (13). The installation grooves (16) are formed so that their width gradually narrows as they go from the guide member (13) to the support member (12).

The spring holder (30) is formed to gradually narrow by forming inclined surfaces (31) on both sides so that it can be fitted into the installation groove (16). Accordingly, it is installed by being caught on the narrowing end of the installation groove (16), and although it can move in the direction of the widening of the installation groove (16), it is caught on the narrowing end. A catch (32) is formed protruding on both sides of the spring holder (30) so that it is inserted into and caught on the lower part of the guide piece (13). Here, the catch (32) is slightly protruded so that it is inserted into the wide part of the installation groove (16) and then caught on the lower part of the guide piece (13) at the narrow part.

The above compression spring (40) has one end pressed against the spring receiver (30) and the other end inserted into the slot (21) of the blocking frame (20) to pressurize and move the blocking frame (20) toward the plate (11) of the fixed frame (10).

The above spring holder (30) has a circular mounting groove (33) formed into which one end of a compression spring (40) is partially inserted, thereby preventing the compression spring (40) from being detached.

In addition, a fixed piece (50) can be installed by inserting it into the slot (21) of the above-described blocking frame (20). The fixed piece (50) is formed in a plate shape and its thickness is formed to a size that can be forcibly fitted into the slot (21) so that the end of the compression spring (40) is in close contact with the end of the fixed piece (50). Since the compression spring (40) has a strong elastic force when its diameter becomes small enough to be inserted into the slot (21), to solve this problem, the diameter is made large, and the fixed piece (50) is inserted into the slot (21) so that the compression spring (40) is installed between the fixed piece (50) and the spring receiver (30). Here, both ends of the compression spring (40) are bent in the axial direction to form a protruding fixed pin (41), and pinholes (35) (55) are formed in the spring receiver (30) and fixed piece (50) facing each other so that the fixed pin (41) of the compression spring (40) is inserted and installed, thereby preventing the compression spring (40) from being detached.

The above-mentioned settling grooves (33) and pin holes (35, 55) are formed in two or more numbers, and the above-mentioned compression springs (40) are provided in one or more numbers so that they can be installed by being inserted into one or more of the settling grooves (33) and pin holes (35, 55). That is, when weak elasticity is desired, the compression springs (40) are installed only in the central settling groove (33), and when strong elasticity is desired, the compression springs (40) are installed in all the settling grooves (33).

In addition, as shown in FIG. 3, the spring holder (30) is formed with a spring insertion hole (36) into which a compression spring (40) is inserted at the bottom. The spring insertion hole (36) is formed to penetrate in the front-back direction and is formed to be open toward the bottom. In addition, the mounting groove (33) and the pin hole (35) are also open toward the bottom and communicate with the spring insertion hole (36). This spring holder (30) is installed first before the compression spring (40) is installed, and the compression spring (40) can be finally inserted through the exposed spring insertion hole (36). At this time, the front end of the compression spring (40) is inserted first, and the rear end is inserted while the compression spring (40) is compressed, and when the insertion is completed, the rear end is lifted and positioned in the mounting groove (33). In this process, the mounting groove (33) and the pin hole (35) are open at the bottom, so that the compression spring (40) can be installed. Since it can be installed by inserting a compression spring and compressing and lifting it, it can be installed quickly and easily every time.

Due to this structure, installation of a compression spring (40) is possible even in a narrow space, and since the spring receiver (30) is installed in an installation groove (16) that gradually narrows, deformation of the spring receiver (30) is prevented, enabling quick and easy installation and removal.

FIG. 9 is a perspective view illustrating a compression spring structure according to another embodiment of the present invention. As illustrated in the drawing, an extension portion (42) is formed to extend one end of two compression springs (40). Here, the extension portion (42) is formed in a 'ㄷ' shape, and the compression springs (40) are positioned in parallel.

And the pinhole (55) of the fixed member (50) is penetrated so that the extension (42) of the compression spring (40) penetrates the pinhole (55) and is installed. That is, when the compression spring (40) is inserted into the slot (21) of the blocking frame (20) while being fitted to the fixed member (50), the two compression springs (40) protrude and maintain a fixed state. Since the compression spring (40) is maintained in a fixed state, it is easier to install by compressing the spring holder (30) by pressing it against the compression spring (40).

Claims (5)

A fixed frame (10) is formed with a guide piece (13) that protrudes diagonally in the direction of the plate (11) from the end of a support member (12) that protrudes from one side of the plate (11), and is fixedly installed on a frame frame (1); It includes a blocking frame (20) that is formed with a slot (21) that is opened on one side and is fitted into a guide member (13) of a fixed frame (10) and slides along the guide member (13); The above fixed frame (10) forms an installation groove (16) by partially cutting the support (12) and the guide (13), but is formed to gradually narrow from the guide (13) to the support (12). A spring receiving member (30) having inclined surfaces (31) formed on both sides to fit into the above-mentioned installation groove (16), and having a protruding catch (32) formed on both sides to catch on the lower part of the guide member (13); A spring-mounted structure for an elevator hand-trapping prevention frame, characterized by comprising a compression spring (40) whose first end is in contact with a spring holder (30) and whose other end is inserted into a slot (21) of a blocking frame (20) to move the blocking frame (20) toward the plate (11) of the fixed frame (10). A spring mounting structure for an elevator hand-trapping prevention frame, characterized in that in the first paragraph, the spring receiver (30) has a mounting groove (33) formed into which one end of a compression spring (40) is partially inserted. In the first paragraph, a fixed piece (50) fitted into the slot (21) of the blocking frame (20) is further provided; The two ends of the above compression spring (40) are bent in the axial direction to form a protruding fixed pin (41). A spring mounting structure for an elevator hand-trapping prevention frame, characterized in that pinholes (35, 55) are formed in the spring holder (30) and fixed member (50) facing each other, and a fixed pin (41) of a compression spring (40) is inserted and installed. In the third paragraph, the spring receiving member (30) forms a spring insertion hole (36) at the bottom, and the fixing groove (33) and the pin hole (35) are opened downward to communicate with the spring insertion hole (36), so that the compression spring (40) is inserted and installed through the spring insertion hole (36), characterized in that the spring mounting structure of the elevator hand-trapping prevention frame. In the third paragraph, a 'ㄷ' shaped extension part (42) is formed to extend one end of two compression springs (40) so that the compression springs (40) are positioned parallel to each other. A spring mounting structure for an elevator hand-trapping prevention frame, characterized in that two compression springs (40) are fixed when the fixed member (50) is inserted into the slot (21) while the extension part (42) of the compression spring (40) is installed by penetrating the pinhole (55) of the fixed member (50).

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