JP2008248495A - Hinge structure of door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enhance the workability of the mounting of a door by obtaining a hinge structure of the door, which enables the intensive performance of the operation of aligning a shaft with a shaft hole, without the need for the concurrent performance of a plurality of operations. <P>SOLUTION: This hinge structure 100 of the door 15 comprises: the shaft hole 13a which is provided in an upper opening frame 11; the shaft 25 which is housed in such a manner as to be protrusible from the door 15, and the protruding-direction coming-off of which is regulated by the abutment of a protrusion regulating portion 25b; a storage body 27 for movably holding the shaft 25; an urging means 29 for urging the shaft 25 in a protruding direction; a lever 41 which is swingably attached to the door 15 via a supporting shaft 43, to which the storage body 27 is connected via a cam plate 39 fixed to one swinging end, and the other swinging end 41a of which is protruded from the door 1 and swingably arranged in parallel with a door surface, so as to compress the urging means 29 and make the protrusion regulating portion 25b abut on it; and a temporary locking means 49 for holding the lever 41 at a predetermined swing angle so that the urging means 29 can be put into a compressed state. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a door hinge structure in which a shaft protruding from an upper end surface on a door suspension base side is inserted into a shaft hole provided in an upper opening frame on a building housing side to support the door so that the door can be opened and closed.

  In the hinge structure that supports the door openably and closably in the opening frame of the building, the shaft protruding from the upper end surface of the door is inserted into the shaft hole provided in the upper opening frame on the building frame side, and protrudes from the lower end surface of the door There are some which support the door so that it can be opened and closed by inserting the shaft into the lower opening frame on the building frame side or the shaft hole provided on the floor. In such a door hinge structure, generally, a shaft protruding from the upper end surface of the door has a structure that can be pulled into the door. For example, there is a hinge structure in which a shaft that can be protruded from the upper end surface of a door is brought into a protruding state by an urging means, and the shaft can be retracted into the door by pushing the shaft tip against the urging means. (See Patent Document 1). Further, the hinge is configured such that the rear end portion of the shaft is connected to the swing lever through a link mechanism or the like, and the shaft that is housed in the door protrudes from the upper end surface of the door by the swing of the swing lever. There is also a structure.

In these hinge structures, first, the door is lifted, and the lower hinge provided at the lower part of the door is inserted into the shaft hole of the lower opening frame to support the door. Next, the shaft in the protruding state of the inclined upper portion of the door is accommodated in the door by pushing it with a finger or operating the swing lever, and the upper end surface of the door is disposed opposite to the lower surface of the upper opening frame. In the hinge structure protruding by the biasing means, the shaft tip presses the lower surface of the upper opening frame at this stage, and the shaft is attached by searching the shaft tip into the shaft hole while moving the upper part of the door. The door is fitted into the shaft hole by the biasing force of the biasing means. Also, in the hinge structure with swing lever, when the shaft and the shaft hole are aligned, the swing lever is operated, the shaft protrudes from the upper end surface of the door, and the door is attached by inserting into the shaft hole. Complete.
Japanese Patent Laid-Open No. 9-49361

  However, in the conventional hinge structure, when the door is heavy, it is forced to push in the shaft or operate the swing lever to protrude the shaft while holding the door with both hands, and the door falls down. While supporting the weight, the upper shaft hole position is searched, and when the shaft and the shaft hole are aligned, the shaft must be extended simultaneously, resulting in poor workability and skill. was there. In addition, when the total height of the door is large, it is necessary to push in the protruding shaft or operate the swing lever at a high place, which further reduces the door installation workability.

  The present invention has been made in view of the above situation, and its first object is to provide a door hinge structure that can concentrate on the operation of aligning the shaft with the shaft hole without simultaneously performing a plurality of operations, Therefore, it aims at improving the workability of attaching the door. Moreover, the 2nd objective is to obtain the door hinge structure which can attach a door easily irrespective of the height of a door.

Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments.
The hinge structure of the door according to claim 1 of the present invention includes a shaft hole 13a provided in the upper opening frame 11,
A shaft 25 in which a front end portion 25a is accommodated so as to be protrudeable from the door upper end surface 15a and the protrusion in the protruding direction is restricted by the contact of the protrusion restricting portion 25b;
A container 27 for holding the rear end portion 25c of the shaft 25 movably in the axial direction;
A biasing means 29 that is disposed between the container 27 and the shaft 25 and biases the shaft 25 in a protruding direction;
The container 27 is connected to the door 15 via a support shaft 43 extending in a direction perpendicular to the vertical direction, and is swingably attached to the door 15. A lever 41 that compresses the urging means 29 and abuts the protrusion restricting portion 25b by oscillating the other end 41a protruding from the side parallel to the door surface;
Temporary locking means provided on the door 15 for holding the lever 41 at a predetermined swing angle so that the biasing means 29 is compressed by a reaction force received from the upper opening frame 11 through the shaft 25. 49,
It is characterized by comprising.

  In this door hinge structure, when a heavy door 15 is attached, the upper part of the door is inclined, and after the lower part of the door is first attached to the lower hinge, the door 15 is erected in the vertical direction and the upper end surface 15a of the door is the upper part. Opposed to the lower surface of the opening frame 11. In this state, the temporary lock means 49 holds the lever 41 at a predetermined swinging angle, so that the tip 25a of the shaft 25 projecting from the door upper end face 15a is urged by the urging means 29 to lower the lower surface of the upper opening frame 11. Will be pressed. Thereby, it can concentrate on aligning the axis | shaft 25 which presses the lower surface of the upper opening frame 11 to the axial hole 13a, moving a door upper part centering on the lower hinge which supported the door weight. Accordingly, it is not necessary to simultaneously perform a large number of operations such as feeding the shaft 25 when the shaft 25 and the shaft hole 13a are matched while supporting the heavy door as in the prior art while the two are matched.

In the hinge structure of the door according to claim 2, an engagement pin 37 in the same direction as the support shaft 43 protrudes from the housing body 27.
The cam plate 39 is formed with a cam-shaped groove having a short side portion 39b and a long side portion 39a with which the engaging pin 37 is engaged,
The engaging pin 37 is disposed on the short side 39b of the cam groove by the swinging other end 41a being swingably disposed in parallel with the door surface.

  In this door hinge structure, the container 27 that is to be pushed down by the biasing means 29 in the compressed state falls to the lower end of the short side portion 39b that is inclined like a letter, so that the container 27 and the shaft 25 cannot be retracted. .

  The hinge structure of the door according to claim 3 is characterized in that the shaft 25 is formed with different lengths according to the height of the door 15.

  In this door hinge structure, the lever 41 can be arranged at the position with the best operability from the door upper end surface 15a from which the tip 25a of the shaft 25 protrudes. There is no need to do it.

  According to the hinge structure of the door according to claim 1 of the present invention, a shaft that can be protruded from the upper end surface of the door is movably held in the housing, and biasing means that biases the shaft in the protruding direction is provided. Provided with a lever for compressing the biasing means by placing the other end of the swinging in parallel with the door surface and abutting the protrusion restricting portion and holding the lever at a predetermined swinging angle. Therefore, even when attaching a heavy door, tilt the upper part of the door, attach the lower part of the door to the lower hinge, and then place the upper end of the door on the lower surface of the upper opening frame while standing the door vertically. In this state, the lever is held at a predetermined swing angle by the temporary lock means, and the tip of the shaft protruding from the upper end surface of the door is pressed against the lower surface of the upper opening frame by the urging means. it can. This makes it possible to concentrate on aligning the shaft that presses the lower surface of the upper opening frame with the shaft hole while moving the upper part of the door around the lower hinge that supports the door weight, making it very easy to make a heavy door Can be attached to.

  According to the hinge structure of the door according to claim 2, the engaging pin protrudes from the housing, and the cam groove having a rectangular shape composed of the short side portion and the long side portion engaged with the engaging pin is camped. Since the engaging pin is arranged on the short side of the cam groove when the other end of the lever is arranged to oscillate parallel to the door surface, The container to be pushed down falls to the lower end of the short side portion inclined in a letter-like shape, making it impossible to retract the container and the shaft, so that the protruding state of the shaft can be securely fixed.

  According to the hinge structure of the door according to claim 3, since the shaft is formed with different lengths according to the height of the door, the floor having the best operability with respect to the door upper end surface from which the tip of the shaft protrudes. It is possible to place the lever at a position away from the head, and there is no need to operate the lever at a high place using a platform or the like. As a result, regardless of the height of the door, the operability by the lever, that is, the swinging operability of the lever for projecting the shaft can be improved, and the installation of a large large door is easy. Become.

DESCRIPTION OF EMBODIMENTS Hereinafter, a preferred embodiment of a door hinge structure according to the present invention will be described in detail with reference to the drawings.
FIG. 1 is a longitudinal sectional view of a hinge structure of a door according to the present invention, and FIG. 2 is an exploded perspective view showing the base plate and the case shown in FIG.
The hinge structure 100 of the door by this Embodiment is employ | adopted as the suspension base side of the door 15 attached to the opening part 19 of a building frame. A vertical opening frame 17 is built in the opening 19, and an upper end of the vertical opening frame 17 is connected to the upper opening frame 11. A bearing 13 is embedded in the suspension base side of the upper opening frame 11, and the bearing 13 has a shaft hole 13a. The shaft hole 13 a provided in the upper opening frame 11 is preferably opened in the same plane as the lower surface of the upper opening frame 11.

  A housing portion 51 shown in FIG. 2 is provided at the suspending portion of the door upper end surface 15a with the door corner portion sandwiched between the upper end and the side end, and the housing portion 51 has a stepped portion 53 on the periphery of the opening. A base plate 21 is attached to the accommodating portion 51, and the base plate 21 is bent into an L shape including a long piece portion 21a and a short piece portion 21b. The base plate 21 is fitted to the stepped portion 53 by a screw 33 inserted through a hole 59 formed in the short piece portion 21b and a screw 45 inserted through a hole 61 formed in the long piece portion 21a. 15 is fixed.

  A case 23 is accommodated in the accommodating portion 51 covered with the base plate 21, and the case 23 is formed in a substantially U-shaped cross section by bending a pair of side plates on the substrate. The case 23 is provided on both side plates while a screw 35 inserted through a hole 67 formed in the fixing plate 23a bent at one end is screwed into a screw hole 57 of the short piece portion 21b of the base plate 21. A screw (not shown) inserted through the fixed piece 71 is screwed into the long piece portion 21 a of the base plate 21 to be fixed to the base plate 21.

  A container 27 is further provided in the case 23 so as to be movable up and down. The container 27 is formed in a bottomed cylindrical shape having an upper part opened and a lower part closed by a bottom plate 31a. A pressing rod 31 is integrally suspended from the lower portion of the housing 27, and an engaging pin 37 in a direction perpendicular to the vertical direction is projected from the lower end of the pressing rod 31. A rear end portion 25c of the shaft 25 is accommodated inside the housing body 27, and the shaft 25 has a flange 25b as a protrusion restricting portion that protrudes with a diameter larger than the outer diameter of the shaft at the central portion in the axial direction. . The shaft 25 is divided into a front end portion 25a and a rear end portion 25c with the flange 25b as a boundary. The tip 25 a of the shaft 25 is inserted from below into an insertion hole 55 formed in the short piece 21 b of the base plate 21. That is, the shaft 25 is prevented from being pulled upward by the flange 25b coming into contact with the lower surface of the short piece portion 21b.

  A large-diameter portion is continuously provided in the housing body 27 above the housing space 27a for housing the rear end portion 25c, and the boundary serves as a step portion 27b. The large-diameter portion accommodates a coil spring 29 as an urging means externally attached to the rear end portion 25c. One end of the coil spring 29 is in contact with the flange 25b and the other end is in contact with the step portion 27b.

  That is, the shaft 25 is accommodated so that the tip end portion 25a can protrude from the upper end surface 15a of the door 15, and the protrusion in the protruding direction is restricted by the contact of the flange 25b. The shaft 25 is urged in the protruding direction by a coil spring 29 disposed between the container 27 and the shaft 25, that is, between the step portion 27b and the flange 25b.

  A pair of support shafts 43 perpendicular to the vertical direction and in the same direction as the engagement pins 37 protrude from both side plates of the case 23, and the lever 41 is supported on the support shaft 43 so as to be swingable. A cam plate 39 is fixed to one end of the swing of the lever 41, and the cam plate 39 has a cam-shaped groove having a long side portion 39a and a short side portion 39b. An engaging pin 37 of the pressing rod 31 is engaged with the cam groove of the cam plate 39. That is, one end of the swing of the lever 41 is connected to the container 27 via the cam plate 39. The other swinging end 41 a of the lever 41 is led out from a rectangular opening window 63 formed in the long piece portion 21 a of the base plate 21.

  The lever 41 is freely swingable within a swing range between a position where the swinging other end 41a is in contact with the vertical end surface 15b of the door 15 and a position protruding from the vertical end surface 15b. Therefore, if the swinging other end 41a is disposed parallel to the end surface 15b, the cam plate 39 is disposed upward, and if the swinging other end 41a is disposed at a position protruding from the end surface 15b, the cam plate 39 is moved downward. Arranged. The engaging pin 37 that engages with the cam plate 39 is located at the short side portion 39b with the cam plate 39 in the upper position, and is located at the long side portion 39a with the cam plate 39 in the lower position. Due to the vertical displacement of the cam plate 39, the container 27 and the pressing rod 31 are moved up and down via the engagement pin 37. That is, in the lever 41, the swinging other end 41a protruding from the end surface 15b is swingingly arranged in parallel with the end surface 15b (the state of FIG. 1). It is made to contact the lower surface.

  The engaging pin 37 is disposed on the short side portion 39b of the cam groove when the other swinging end 41a of the lever 41 is swung in parallel with the door surface (end surface 15b). As a result, the container 27 to be pushed down by the urging force of the coil spring 29 falls to the lower end of the short side portion 39b inclined like a letter, so that the container 27 and the shaft 25 cannot be retracted. Thus, when the engaging pin 37 protrudes from the pressing rod 31 of the housing body 27 and the swinging other end 41a of the lever 41 is swingably arranged in parallel with the end face 15b, the engaging pin 37 becomes the cam plate 39. Therefore, the container 27 cannot be retracted, and the shaft 25 can be reliably fixed in the protruding state.

  When not in use, the lever 41 is fixed in parallel with the long piece portion 21a by screwing the screw 42 inserted through the swinging other end 41a into a screw hole 65 provided in the long piece portion 21a of the base plate 21. And stored (the state of FIG. 1).

  Protruding pieces 69 project from both side plates of the case 23, and the protruding pieces 69 are inserted into the opening windows 63 of the base plate 21. A temporary lock plate 49 as a temporary lock means is supported between the pair of projecting pieces 69, and both ends of the upper edge of the temporary lock plate 49 are supported by the pair of projecting pieces 69 by a rotating shaft or the like. That is, the temporary lock plate 49 is suspended from the upper edge as the center of rotation, and the lower portion is swingable in the left-right direction in FIG. The lower end of the temporary lock plate 49 is in contact with the upper surface of the swinging other end 41a of the lever 41 in the vicinity of the support shaft 43 as shown in FIG. In this way, the lever 41 whose swinging other end 41a is in contact with the lower end of the temporary lock plate 49 does not swing the swinging other end 41a upward.

  In this state, the shaft 25 is urged to the protruding state by the coil spring 29 as shown in FIG. The temporary lock state of the lever 41 can be released by swinging the temporary lock plate 49 as shown in FIG. If the swing restriction by the temporary lock plate 49 is released from this state, the lever 41 is moved at the other swing end 41a to the upper end swing position as shown in FIG. Is retracted into the door 15. That is, the shaft 25 is stored when the other swinging end 41a is in the upper end swinging position. That is, the temporary lock plate 49 can hold the lever 41 at a predetermined swing angle so that the coil spring 29 is compressed by the reaction force received from the upper opening frame 11 via the shaft 25.

Next, the door attachment procedure of the above-described door hinge structure will be described.
3 is an operation explanatory diagram before the opening of the door having the hinge structure shown in FIG. 1 is attached, FIG. 4 is an operation explanatory diagram in a state where the lower part of the door is attached, and FIG. 5 is a state where the door is opened around the lower hinge. FIG. 6 is a longitudinal sectional view of the hinge structure before the shaft protrudes, FIG. 7 is an operational explanatory view in a state where the upper end surface of the door is inserted directly under the upper opening frame, and FIG. 8 is a longitudinal sectional view of the lever temporarily locked state. FIG. 9 is a longitudinal sectional view of the shaft fitted state, FIG. 10 is a longitudinal sectional view of the shaft protruding fixed state, and FIG. 11 is a perspective view of the door that has been attached to the opening frame.
As shown in FIG. 3, in order to attach the door 15 provided with the hinge structure 100 to the building opening 19, the door 15 is held with both hands, and as shown in FIG. A lower hinge (for example, a shaft) (not shown) provided at the door lower portion 15c on the suspending side is attached to the shaft hole of the lower opening frame while the upper portion of the lower opening frame 11 is approached. At this time, the lever 41 may have the other swinging end 41 a fixed by a screw 42 in parallel with the long piece portion 21 a. In addition, the lower hinge may have a configuration in which a shaft hole is formed in the door lower portion 15c and a shaft is erected in the lower opening frame.

  Next, as shown in FIG. 5, the door 15 is rotated and opened around the door lower portion 15c, and the screw 42 is removed. The lever 41 from which the screw 42 is removed is oscillated to the upper end oscillating position as shown in FIG. In this state, the tip 25a of the shaft 25 is accommodated in the door 15 without protruding from the door upper end surface 15a.

  Next, as shown in FIG. 7, the protruding position of the shaft 25 is opposed to the lower surface of the upper opening frame 11 and carried to a position close to the shaft hole 13 a, and the lever 41 is rotated downward to project the shaft 25. When the lever 41 is lowered to a predetermined position, the temporary lock plate 49 comes into contact with the swinging other end 41a of the lever 41 from above as shown in FIG. 8, and the upward rotation of the swinging other end 41a is prevented. The In this state, the coil spring 29 is sandwiched between the flange 25b and the stepped portion 27b, and urges the shaft 25 in the protruding direction. That is, the tip 25a of the shaft 25 places the lower surface of the upper opening frame 11 in a pressed state.

  In this state, the upper suspension base position of the door 15 is finely adjusted so that the positions of the shaft 25 and the shaft hole 13a are matched. When the shaft 25 coincides with the shaft hole 13a, as shown in FIG. 9, the tip portion 25a of the shaft 25 biased by the coil spring 29 protrudes and is inserted into the shaft hole 13a.

  Next, as shown in FIG. 10, the other end 41a of the lever 41 is further swung to come into contact with the long piece portion 21a of the base plate 21 in parallel, and the screw 42 is inserted and fixed to the long piece portion 21a. To do. When the lever 41 is fixed, the cam plate 39 is disposed at the upper end position, and the engagement pin 37 is lowered and held at the lower end of the short side portion 39b. In addition, the coil spring 29 is in a compressed state, and the shaft 25 is in a fixed state with the flange 25b abutting against the short piece portion 21b of the base plate 21 so that the forward / backward movement is restricted. As a result, as shown in FIG. 11, the door 15 can be freely opened and closed inside the upper opening frame 11 and the vertical opening frame 17 provided in the opening 19, and the attachment is completed.

  In the hinge structure 100, when the heavy door 15 is attached, the upper part of the door is inclined. First, after the door lower part 15c is attached to the lower hinge, the door 15 is erected in the vertical direction, and the door upper end face 15a is the upper part. Opposed to the lower surface of the opening frame 11. In this state, the lever 41 is held at a predetermined swing angle by the temporary lock plate 49, so that the tip 25 a of the shaft 25 protruding from the door upper end surface 15 a is pressed against the lower surface of the upper opening frame 11 by the coil spring 29. It can be maintained in a state.

  Therefore, according to the above hinge structure of the door, the shaft 25 that can protrude from the door upper end surface 15a is movably held in the housing 27, and the coil spring 29 that urges the shaft 25 in the protruding direction is provided to swing. A lever 41 that compresses the coil spring 29 and contacts the flange 25b by providing the other end 41a swinging parallel to the door surface is provided, and a temporary lock plate 49 that holds the lever 41 at a predetermined swing angle is provided. Therefore, even when a heavy door 15 is attached, the upper part of the door is inclined, and after the door lower part 15c is first attached to the lower hinge, the upper end surface 15a of the door is opened upward while the door 15 is standing vertically. The front end portion 25 a of the shaft 25 protruding from the door upper end surface 15 a is held by the coil spring 29 by being opposed to the lower surface of the frame 11 and holding the lever 41 at a predetermined swing angle by the temporary lock plate 49 in this state. Can the pressing state to the lower surface of the upper opening frame 11.

  As a result, as in the past, while supporting a heavy door, the operation of retracting the protruding shaft, searching the shaft and the shaft hole, and extending the shaft when they match, The shaft 25 that presses the lower surface of the upper opening frame 11 while moving the upper part of the door around the lower hinge supporting the weight of the door is not required to perform many operations such as fixing in the protruding state. The work can be concentrated only by aligning with 13a, and the heavy door 15 can be attached very easily and in a short time.

FIG. 12 is an enlarged perspective view of a main part showing a modification of the hinge structure having a long shaft.
In the configuration of the hinge structure described above, the shaft 25 can be formed with different lengths according to the height of the door 15. According to the hinge structure 100A according to such a modified example, in the case of the door 15A having a large overall height, the upper end surface 15a of the shaft 25A from which the tip portion 25Aa protrudes is formed by forming the shaft 25A longer according to the height of the door 15A. Therefore, the lever 41 and the temporary lock plate 49 can be arranged at the position where the operability is most favorable, that is, the height from the floor surface where the operability is good. There is no need to do it. As a result, the operability by the lever 41, that is, the swinging operability of the lever 41 for projecting the shaft 25A can be improved regardless of the door height. And by setting it as such a structure, workability | operativity improves and an assembly construction becomes easy.

It is a longitudinal cross-sectional view of the hinge structure of the door which concerns on this invention. It is the disassembled perspective view which represented the base plate and case shown in FIG. 1 with the door accommodating part. It is operation | movement explanatory drawing before the opening part attachment of a door provided with the hinge structure shown in FIG. It is operation | movement explanatory drawing of the state which attached the door lower part. It is operation | movement explanatory drawing of the state which opened the door centering on the lower hinge. It is a longitudinal cross-sectional view of the hinge structure before axial protrusion. It is operation | movement explanatory drawing of the state which inserted the door upper end surface directly under the upper opening frame. It is a longitudinal cross-sectional view of a lever temporary lock state. It is a longitudinal cross-sectional view of a shaft insertion state. It is a longitudinal cross-sectional view of a shaft protrusion fixed state. It is a perspective view of the door completed attachment to the opening frame. It is a principal part expansion perspective view showing the modification of the hinge structure provided with the elongate shaft.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 ... Upper opening frame 13a ... Shaft hole 15 ... Door 15a ... Door upper end surface 25 ... Shaft 25a ... Tip part 25b ... Projection control part (flange)
25c ... Rear end of shaft 27 ... Housing 29 ... Biasing means (coil spring)
37 ... engagement pin 39 ... cam plate 39a ... long side portion 39b ... short side portion 41 ... lever 41a ... oscillating other end 43 ... support shaft 49 ... temporary locking means (temporary locking plate)
100: Hinge structure

Claims (3)

A shaft hole provided in the upper opening frame;
A shaft whose tip is housed in a projectable manner from the upper end surface of the door and is prevented from coming off in the projecting direction by abutment of the projecting regulating portion;
A container for holding the rear end of the shaft movably in the axial direction;
A biasing means disposed between the container and the shaft to bias the shaft in a protruding direction;
The container is connected to the door through a support shaft extending in a direction perpendicular to the vertical direction, and is connected to the housing through a cam plate fixed to one end of the swing. A lever that compresses the urging means by causing the other end of the movement to swing in parallel with the door surface, and abuts the protrusion restricting portion;
Provisional lock means for holding the lever at a predetermined swinging angle so that the biasing means is compressed by a reaction force provided on the door from the upper opening frame via the shaft;
A door hinge structure characterized by comprising: An engagement pin in the same direction as the support shaft protrudes from the container.
The cam plate is formed with a cam-shaped groove having a short side portion and a long side portion with which the engagement pin engages,
The door hinge structure according to claim 1, wherein the engaging pin is disposed on a short side portion of the cam groove by the other end of the swinging being disposed in parallel with the door surface.   The door hinge structure according to claim 1 or 2, wherein the shaft is formed with different lengths according to the height of the door.

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