JP2016113888A - Door structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a low-priced door structure of high work efficiency and without a scratch on a surface, the door structure allowing automatic correction of a mutual dislocation between end surfaces of door frame bodies and fixing of a pair of door frame bodies without welding, only by engaging a tapered hook groove and a hook part gripping groove, when the pair of door frame bodies are assembled.SOLUTION: A pair of door frame bodies is fixed only in the following steps: inserting a pair of hook parts into an engaging hole of an engaging member disposed between the pair of door frame bodies, the hook part having a tapered hook groove formed on a consolidated part at both ends of each of the pair of door frame bodies; and sliding the engaging member so as to engage a hook part gripping groove formed on the engaging hole of the engaging member with the pair of tapered hook grooves.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a door structure suitable for use in various doors such as building doors and fire doors, and in particular, the manufacturing process can be simplified and the manufacturing cost can be kept low, and the door appearance can be reduced. It relates to an excellent door structure.

  Conventionally, various door structures have been proposed. Generally, this type of door structure is basically composed of a pair of door frames and reinforcing members molded from a galvanized iron plate. The reinforcing member is provided between the door frame bodies by a welding and joining method.

  Therefore, a conventional method for manufacturing a door structure performed by a welding method will be described with reference to FIGS. In FIG. 15, first, a pair of U-shaped reinforcing members 103 having welded portions 102 formed on both side edges are formed on the back surface of a U-shaped door frame body 101 formed from a galvanized iron plate. The welded portion 102 is contacted with a predetermined interval. Thereafter, carbon dioxide arc welding is performed on an appropriate portion of the welded portion 102 from above in a state where the welded portion 102 of the reinforcing member 103 and the rear surface of the door frame body 101 are pressed against each other.

  During such carbon dioxide arc welding, protruding welding marks P remain on the surface of the door frame 101 as shown in FIG. If such welding marks P remain on the surface of the door frame body 101, the commercial value is extremely lowered. Therefore, the grinder 105 scrapes off the welding marks P from the surface of the door frame body 101 as shown in FIG.

  Next, with respect to the door frame body 101 to which the pair of reinforcing members 103 are welded as described above, the other door frame body 101 constituting the door in cooperation with the door frame body 101 is opposed from above as shown in FIG. The carbon dioxide arc welding is performed at a plurality of positions in the same manner as described above from above the position corresponding to the other welded portion 102 in each reinforcing member 103. At this time, since welding marks P are generated on the surface of the door frame 101 as described above, the grinder 105 removes the welding marks P in the same manner as described above.

  Subsequently, as shown in FIG. 19, carbon dioxide arc welding is performed from both side surfaces of each door frame body 101 at a plurality of locations S of the U-shaped opposed parts of the pair of upper and lower door frame bodies 101, 101. Even in such a case, since a plurality of welding marks P are generated on the side surfaces of the door frames 101, 101, the welding marks are removed by the grinder 105 in the same manner as described above in order to remove these welding marks P.

  As a result, the door body is obtained, but the part that has been finished with the grinder 105 as described above is rusted and galvanized, so it is easy to rust. Finishing is done with sandpaper. Then, the door is completed by painting.

  In this conventional door structure manufacturing method, one door frame 101 and the reinforcing member 103 are welded and joined, the other door frame 101 and the reinforcing member 103 are welded and joined, and both door frames 101 are joined. , 101, welding marks P are formed on the surface of the door frame body 101, respectively. Therefore, a finishing process by the grinder 105 is necessary to remove the welding marks P, and this work is extremely complicated. At the same time, there is a problem that the manufacturing efficiency of the door structure is lowered. Further, there is a problem that the manufacturing cost of the door structure will be increased in the future.

  For this reason, various techniques for solving these problems have been proposed. For example, in Patent Document 1, a reinforcing member is provided in an internal gap formed between a pair of door frame bodies, and a back surface and a reinforcing member of each door frame body are connected to each other through a welded portion formed on the reinforcing member. In the door structure formed by welding and joining, the welded portion of the reinforcing member has projections formed at regular intervals, and the projections are in contact with the back surface of the door frame body and a pair of welds. One of the welding electrodes is brought into contact with the welded portion corresponding to the position where the projection is formed, and the other welding electrode is brought into contact with the back surface of the door frame body, By energizing the other welding electrode from the welding electrode and passing a current along a path from one welding electrode through the inside of the door frame body to the other welding electrode from the protrusion, the door frame The door structure which welded and joined the body and the reinforcement member is described.

  Further, in Patent Document 1, a reinforcing member is provided in an internal gap formed between a pair of door frame bodies, and a back surface of each door frame body and a reinforcing member are provided via a welded portion formed on the reinforcing member. In the door structure manufacturing method of manufacturing the door structure by welding and joining, a first step of forming protrusions at a predetermined interval on the welded portion of the reinforcing portion, and the reinforcing member on which the protrusion is formed A second step of abutting and arranging on the back surface of each door frame body, one welding electrode of the pair of welding electrodes is brought into contact with the welded portion corresponding to the position where the projection is formed, and the other A third step of bringing the welding electrode into contact with the back surface of the door frame, and in a state in which the contact state is maintained, energization is performed from one welding electrode to the other welding electrode; Current flows along the path from the inside of the door frame to the other welding electrode A fourth step of welding and joining the door frame body and the reinforcing member, a fifth step of mutually facing the back surfaces of the door frame bodies to which the reinforcing member is welded, and the door frame bodies. A manufacturing method of a door structure is described which includes a sixth step of welding and joining each door frame body through plasma welding in a state of being opposed to each other.

  According to the door structure of Patent Document 1 described above, protrusions are formed at regular intervals on the welded portion of the reinforcing member, and after placing the reinforcing member in contact with the back surfaces of the pair of door frame bodies, a pair of welding members is used. One of the electrodes for welding is brought into contact with the welded portion corresponding to the position where the projection is formed, and the other electrode for welding is brought into contact with the back surface of the door frame. And in the state which maintained the contact state, it supplies with electricity to the other welding electrode from one welding electrode, passes through the inside of a door frame body from one welding electrode and a projection part to the other welding electrode. The door frame body and the reinforcing member are welded to each other by flowing an electric current along the route. At this time, one welding electrode is in contact with the welding portion corresponding to the position where the projection is formed, and the other welding electrode is in contact with the back surface of the door frame, and accordingly The current that flows between the welding electrodes during welding is energized from one welding electrode to the other welding electrode, passing through the inside of the door frame body from the one welding electrode and the projection, and for the other welding It will flow along the path leading to the electrode. Certainly, this prevents current from flowing through the surface side of the door frame body, so that welding marks are not formed on the surface of the door frame body.

Japanese Patent Publication No. 7-100996

However, according to the door structure of Patent Document 1, in order to fix the pair of door frames opposite to each other in the sixth step, the thickness of the door frame on the side surfaces of the pair of door frames is determined. Each door frame is welded and joined via plasma welding in a state where the cross sections are opposed to each other.
For this reason, plasma welding makes it possible to narrow the welding width and perform precise welding, and there is almost no welding mark left on the surface of the door frame body, but a polishing blade made of glass fiber is applied to the plasma welded portion. It is said that the polishing finish will be performed.
This requires a finishing process by a grinder to remove the welding marks of the prior art, and this work is extremely troublesome, and the manufacturing efficiency of the door structure is reduced, and the door is accompanied by this. In contrast to the problem that the manufacturing cost of the structure will be increased in the future, performing plasma welding and performing a polishing finish through a polishing blade made of glass fiber cause the same problem.
Further, in the fifth step of making the back sides of the pair of door frames face each other, a plurality of cut and raised portions provided from the top surfaces of the plurality of reinforcing members attached to the back side of the one door frame. The locking piece is attached to and opposed to a plurality of locking holes formed on the top surfaces of the plurality of reinforcing members mounted on the back surface side of the other door frame body, but it is not a work that can be performed visually, so time Since the locking piece is cut and raised, the work cannot be visually observed when it is inserted into the locking hole, so that the locking piece is crushed or pulled up to be deformed. is there.
Further, in the fifth step in which the back surfaces of the pair of door frames are opposed to each other, it is described in the embodiment that positioning is performed using the above-described locking pieces and locking holes. Since the locking piece must be larger than the locking hole due to the structure, there is a problem that when the pair of door frame bodies are assembled, the end face of the door frame body is displaced.
Therefore, there is a method of creating and assembling a jig based on the side surfaces of a pair of door frames, but there is a problem that costs such as jig costs and man-hours such as installation occur. There is also a problem that the cost is incurred every time the shape of the material changes.

  The present invention has been made in order to solve the above-described problems, and includes a hook groove with a taper formed on a reinforcing portion provided at each end of each of a pair of door frame bodies, and a pair of hook grooves. A hook portion that is a pair of door frame bodies is inserted into a locking hole of a locking member disposed between the door frame bodies, and a hook portion holding groove formed in the locking hole of the locking member is inserted. By fixing the pair of door frames only by meshing them, it is possible to easily assemble and fix the taper hook groove and the hook part holding groove without deformation, and assembled the pair of door frames. When the taper hook groove and the hook pinching groove are only engaged, the misalignment of the end face of the door frame body can be automatically corrected and eliminated, and the welding operation is eliminated, so the polishing blade made of grinder or glass fiber The surface finish can be omitted without the scratches on the surface. And an object thereof is to provide a Do not work efficient door structure.

  In order to achieve the object, a door structure according to claim 1 is a door structure including a first door frame and a second door frame, and one side end portion of the first door frame. A first reinforcing portion having a first side surface and a first contact surface formed in a U-shaped cross-sectional view that is open in an inner direction of the first door frame body, and opening the first contact surface A first hook portion having a first tapered hook groove extending from the first end portion on the side and having one end open; and a second door frame provided at one side end portion of the second door frame body. A second reinforcing portion having a second side surface and a second abutting surface formed in a U-shape in cross-sectional view opened in the inner direction of the body, and extending from a second end portion on the open side of the second abutting surface. A second hook portion having a second tapered hook groove with one end opened and having the same shape as the first hook portion; the first door frame body; and the second door frame body. A first locking member having a U-shaped cross-sectional view having a first end abutting surface disposed between and abutting the first end and the second end; and the first end abutting surface A first locking hole that is perforated and inserted in a state in which the first hook portion and the second hook portion are overlapped and abutted with each other based on the same shape of the first hook portion and the second hook portion; The guide groove with the first taper provided in the first locking hole and the end of the guide groove with the first taper corresponding to the thickness of the first hook portion and the second hook portion. A holding groove having a groove width, wherein the first door frame body and the second door frame body have a first end contact surface of the first locking member as the first end portion and the second end portion. The first tapered hook groove of the first hook portion and the second tapered hook groove of the second hook portion are sandwiched by the first locking member while being in contact with the portion. By fitting to each other in the groove, characterized in that it is positioned and fixed to each other

  The door structure according to claim 2 is the door structure according to claim 1, wherein the holding groove of the first locking member has a thickness of the first hook portion and the second hook portion. Corresponding to the change, two or more holding grooves having different groove widths are provided.

  The door structure according to claim 3 is the door structure according to claim 1 or 2, wherein the first side surface of the first door frame body and the second door frame at the end surface of the door structure body. The second aspect of the body is flush with the body.

  According to a fourth aspect of the present invention, there is provided the door structure according to any one of the first to third aspects, wherein the first locking member has a U-shaped height in the cross-sectional view of the first door. The height is slidable between the frame and the second door frame.

  According to the door structure according to claim 1, the door structure is a door structure including a first door frame and a second door frame, and one side end portion of the first door frame. A first reinforcing portion having a first side surface and a first contact surface formed in a U-shaped cross-sectional view that is open in an inner direction of the first door frame body, and opening the first contact surface A first hook portion having a first tapered hook groove extending from the first end portion on the side and having one end open; and a second door frame provided at one side end portion of the second door frame body. A second reinforcing portion having a second side surface and a second abutting surface formed in a U-shape in cross-sectional view opened in the inner direction of the body, and extending from a second end portion on the open side of the second abutting surface. A second hook portion having a second taper hook groove with one end opened and having the same shape as the first hook portion; and between the first door frame body and the second door frame body. A first locking member having a U-shaped cross-sectional view and having a first end contact surface that contacts the first end portion and the second end portion, and is drilled in the first end contact surface. A first locking hole that is inserted in a state where the first hook portion and the second hook portion are overlapped and abutted with each other based on the same shape of the first hook portion and the second hook portion; A first tapered guide groove provided in the first locking hole, and a groove width provided at an end of the first tapered guide groove and corresponding to the plate thickness of the first hook portion and the second hook portion. The first door frame body and the second door frame body have a first end contact surface of the first locking member at the first end portion and the second end portion, respectively. In a state of contact, the first tapered hook groove of the first hook portion and the second tapered hook groove of the second hook portion are used as the holding grooves of the first locking member. By mutually fitting, and is configured to be positioned and fixed to each other.

According to this configuration, the first hook portion and the second hook portion having the same shape are inserted into the first locking hole of the first locking member in a state where the first hook portion and the second hook portion are in contact with each other. The door frame body and the second door frame body have the first taper of the first hook portion in a state where the first end contact surface of the first locking member is in contact with the first end portion and the second end portion. Since the hook groove with the second hook and the hook groove with the second taper of the second hook portion are mutually fitted into the holding groove of the first locking member, the assembly is easy. As a result, assembly time can be shortened.
Further, since the first taper hook groove and the second taper hook groove and the first hook portion holding groove are only guided and fitted by the first taper guide groove, the welding marks are removed as in the prior art. Thus, the polishing finish through a polishing blade made of a grinder or glass fiber can be omitted, and the surface of the member can be used as it is.
Further, since the first tapered hook groove and the second tapered hook groove and the first hook portion clamping groove are guided by the first tapered guide groove and intersected at right angles, the deformation of each member is eliminated. be able to.
Further, the positional deviation between the first door frame body and the second door frame body due to the width of the first locking hole of the first locking member and the width of the first tapered hook groove and the second tapered hook groove is as follows. The first taper hook groove and the second taper hook groove and the first hook portion holding groove are guided by the first taper guide groove and fitted at a right angle to automatically correct and align. It can be carried out. That is, since a slight positional shift when the first door frame is placed on the second door frame can be absorbed, the work can be simplified and the burden on the operator can be reduced.
And, by these, it is possible to provide an inexpensive door structure with no scratches on the surface with good work efficiency.

Next, according to the door structure of the second aspect, the holding groove of the first locking member has a groove width corresponding to the change in the plate thickness of the first hook portion and the second hook portion. It is the structure provided with two or more clamping grooves from which these differ.
Therefore, the first locking member can be shared with other door structures having different plate thicknesses, and the unit price of the first locking member can be lowered with the expectation of an increase in quantity.
Moreover, the complexity of component management can be reduced by sharing.

Next, according to the door structure according to claim 3, the first taper hook groove, the second taper hook groove and the holding groove are fitted to each other, and the first door frame body and the second door frame body are fitted. Is positioned and fixed, the first side surface of the first door frame body and the second side surface of the second door frame body are flush with each other at the end surface of the door structure.
That is, the first side surface of the first door frame body and the second side surface of the second door frame body are from the first end portion of the first contact surface and the second end portion of the second contact surface, which are reference end portions. The distance is determined by design. Therefore, the first end contact surface of the first locking member that is the reference contact surface, the first end portion of the first contact surface that is the reference end portion, and the second end portion of the second contact surface. When abutting, the first side surface of the first door frame body and the second side surface of the second door frame body are configured to be flat. It is possible to eliminate the correction work due to the shift of the first side surface and the second side surface of the second door frame.
Thereby, the positional deviation of the first door frame body and the second door frame body due to the width of the first locking hole of the first locking member and the width of the first tapered hook groove and the second tapered hook groove is The first taper hook groove and the second taper hook groove and the first hook portion holding groove are guided by the first taper guide groove and meshed at right angles so that they are automatically corrected and aligned. It can be carried out. That is, since a slight positional shift when the first door frame is placed on the second door frame can be absorbed, the work can be simplified and the burden on the operator can be reduced.

And according to the door structure which concerns on Claim 4, the cross-sectional view U-shaped height of a 1st locking member is the height of the slidable height between a 1st door frame body and a 2nd door frame body. It is configured.
As a result, the U-shape of the first locking member in the cross-sectional view is such that the first locking member is inserted in the first locking member in order to insert the first hook portion and the second hook portion into the first locking hole of the first locking member. When sliding to the 1st hook part and the 2nd hook part side, it can be made to slide smoothly.
Further, the height of the U-shaped section of the first locking member is slidable between the first door frame body and the second door frame body, so the first locking member is attached to the first hook. When sliding to the side and the second hook part side, it can be prevented from falling down.
Thereby, since the operation | work which slides a 1st latching member between a 1st door frame body and a 2nd door frame body is not the operation | work which can be performed by complete visual observation, a worker's burden can be eased.

It is decomposition | disassembly structure explanatory drawing explaining the structure of the door structure which concerns on this embodiment. It is explanatory drawing explaining the process of an assembly of a door structure. It is explanatory drawing explaining the process of an assembly of a door structure. It is explanatory drawing explaining the assembly process in the 1st reinforcement part and the 2nd reinforcement part side in the 1st door frame body and 2nd door frame body of a door structure (for thick plates). It is a fragmentary sectional view explaining the assembly process in the inside of the 1st reinforcement part and the 2nd reinforcement part side in the 1st door frame body and 2nd door frame body of a door structure (process I). It is a fragmentary sectional view explaining the assembly process inside the 1st reinforcement part and the 2nd reinforcement part side in the 1st door frame of a door structure, and the 2nd door frame (process II). It is a fragmentary sectional view explaining the assembly process inside the 1st reinforcement part and the 2nd reinforcement part side in the 1st door frame of a door structure, and the 2nd door frame (process III). It is explanatory drawing explaining the assembly process in the inside of the 1st reinforcement part in the 1st door frame body of a door structure, and a 2nd door frame body, and the 2nd reinforcement part side (for thin plates). It is explanatory drawing explaining the assembly process in the 3rd reinforcement part and the 4th reinforcement part side in the 1st door frame body and 2nd door frame body of a door structure (for thick plates). It is a fragmentary sectional view explaining the assembly process inside the 3rd reinforcement part and the 4th reinforcement part side in the 1st door frame body and the 2nd door frame body of a door structure (process I). It is a fragmentary sectional view explaining the assembly process inside the 3rd reinforcement part and the 4th reinforcement part side in the 1st door frame body and the 2nd door frame body of a door structure (process II). It is a fragmentary sectional view explaining the assembly process inside the 3rd reinforcement part and the 4th reinforcement part side in the 1st door frame body and the 2nd door frame body of a door structure (process III). It is explanatory drawing explaining the assembly process in the 3rd reinforcement part and the 4th reinforcement part side in the 1st door frame body of a door structure, and a 2nd door frame body (for thin plates). It is a completion perspective view of the completed door structure. It is a perspective view which shows the welding state of the conventional door frame body and a reinforcement member. It is explanatory drawing which shows typically the state in which the welding trace produced on the surface of the door frame by the conventional welding method. It is explanatory drawing which shows typically the state which has removed the welding trace via the grinder. It is explanatory drawing which shows typically the state in which the welding trace produced on the surface of the door frame by the conventional welding method. It is explanatory drawing which shows typically the state after removing a welding trace via a grinder and welding and joining door frame bodies.

Hereinafter, a door structure according to the present invention will be described based on an embodiment of the present invention with reference to the drawings.
Initially, based on FIG. 1, schematic structure of the door structure 1 which concerns on this embodiment is demonstrated.
As shown in FIG. 1, the door structure 1 includes a pair of a first door frame 2 and a second door frame 3, a first locking member 4, a second locking member 5, an upper lid member 6, and a lower lid. Consists of member 7.

First, the pair of first door frame body 2 and second door frame body 3 constitutes the front and back of the door structure 1.
As shown in FIG. 1, the first door frame body 2 is formed with a first reinforcing portion 8 having a U-shaped cross-sectional view at the left end and a third reinforcing portion 9 having a U-shaped cross-sectional shape at the right end. ing.
And the 1st reinforcement | strengthening part 8 is provided with the 1st side surface 8a and the 1st contact surface 8b which were formed in the cross-sectional view U-shape open | released in the inner side direction of the 1st door frame body 2. As shown in FIG.
Further, the third reinforcing portion 9 is provided with a third side surface 9a and a third contact surface 9b formed in a U-shaped cross-sectional view opened in the inner direction of the first door frame body 2.
Further, the first abutting surface 8b is provided to extend to the first end portion (reference end portion) 8c on the open side, and is provided in parallel with the first end portion (reference end portion) 8c. In addition, a first hook portion 8f including a first tapered hook groove 8e provided with a first tapered portion 8d on the side wall opposite to the first end portion (reference end portion) 8c is provided. In the present embodiment, five first hook portions 8f are provided.
Similarly, the third abutting surface 9b is provided to extend to the third end portion (reference end portion) 9c on the open side, and is provided in parallel with the third end portion (reference end portion) 9c. A third hook portion 9f including a third tapered hook groove 9e provided with a third taper portion 9d on the side wall opposite to the third end portion (reference end portion) 9c is provided. In the present embodiment, five third hook portions 9f are provided.

Subsequently, as shown in FIG. 1, the second door frame body 3 includes a fourth reinforcing portion 10 having a U-shaped cross-sectional view at the left end and a second reinforcing portion 11 having a U-shaped cross-sectional shape at the right end. Is formed.
And the 4th reinforcement part 10 is provided with the 4th side surface 10a and the 4th contact surface 10b which were formed in the cross-sectional view U shape open | released in the inner side direction of the 2nd door frame 3. As shown in FIG.
Further, the second reinforcing portion 11 is provided with a second side surface 11 a and a second contact surface 11 b that are formed in a U-shaped cross-sectional view opened in the inner direction of the second door frame body 3.
Furthermore, it is provided to extend to the fourth end (reference end) 10c on the open side of the fourth contact surface 10b, and is provided in parallel with the fourth end (reference end) 10c, one of which is open. In addition, a fourth hook portion 10f including a fourth tapered hook groove 10e provided with a fourth tapered portion 10d on the side wall opposite to the fourth end portion (reference end portion) 10c is provided. In the present embodiment, five fourth hook portions 10f are provided.
Similarly, it is provided to extend to the second end (reference end) 11c on the open side of the second contact surface 11b, and is provided in parallel with the second end (reference end) 11c. There is provided a second hook portion 11f that is opened and includes a second tapered hook groove 11e provided with a second tapered portion 11d on the side wall opposite to the first end portion (reference end portion) 11c. In the present embodiment, five second hook portions 11f are provided.

Subsequently, the first locking member 4 and the second locking member 5, but the first locking member 4 and the second locking member 5 are formed by the pair of the first door frame body 2 and the second door frame body 3. It arrange | positions between and has a role which fixes and latches the 1st door frame body 2 and the 2nd door frame body 3. FIG.
The first locking member 4 and the second locking member 5 are formed in a U shape in a sectional view, and the height of the U shape in a sectional view is determined by the first door frame body 2 and the second door frame body 3. When combined, the height is slidable without falling between the first door frame body 2 and the second door frame body 3.

Further, the tall portion of the first locking member 4 formed in a U-shape in cross-sectional view becomes a first end contact surface (reference contact surface) 12, and the first end contact surface (reference contact surface). The first locking hole 13 into which the first hook portion 8f of the first reinforcing portion 8 and the second hook portion 11f of the second reinforcing portion 11 are inserted is formed in the surface 12). In the present embodiment, five first locking holes 13 are drilled.
When the first hook portion 8f of the first reinforcing portion 8 and the second hook portion 11f of the second reinforcing portion 11 are inserted into the first locking hole 13 so as to overlap each other, the first end contact surface (reference contact surface) ) 12 contacts the first end (reference end) 8c provided on the first contact surface 8b and the second end 11c provided on the second contact surface 11b.
Thereby, while the 1st side surface 8a of the 1st reinforcement | strengthening part 8 is determined by the distance from the 1st edge part (reference | standard edge part) 8c, the 2nd side surface 11a of the 2nd reinforcement | strengthening part 11 is 2nd end. Since the two distances are the same, the first hook portion 8f of the first reinforcing portion 8 and the second reinforcing portion 11 of the first reinforcing portion 8 are determined by the distance from the portion (reference end portion) 11c. When the second hook portion 11f is inserted and fixed in an overlapping manner, the first side surface 8a of the first reinforcing portion 8 and the second side surface 11a of the second reinforcing portion 11 become a flat surface without a step.

Similarly, the tall portion of the second locking member 5 formed in a U-shape in cross-section is a second end contact surface (reference contact surface) 14, and the second end contact surface (reference contact). A second locking hole 15 into which the third hook portion 9f of the third reinforcing portion 9 and the fourth hook portion 10f of the fourth reinforcing portion 10 are inserted is formed in the contact surface 14). In the present embodiment, five second locking holes 15 are perforated.
When the third hook portion 9f of the third reinforcing portion 9 and the fourth hook portion 10f of the fourth reinforcing portion 10 are inserted into the second locking hole 15 in an overlapping manner, the second end contact surface (reference contact surface) ) 14 contacts the third end (reference end) 9c provided on the third contact surface 9b and the fourth end 10c provided on the fourth contact surface 10b.
Thereby, while the 3rd side surface 9a of the 3rd reinforcement | strengthening part 9 is determined by the distance from the 3rd edge part (reference | standard edge part) 9c, the 4th side surface 10a of the 4th reinforcement | strengthening part 10 is a 4th edge. Since the two distances are the same, the third hook portion 9f of the third reinforcing portion 9 and the fourth reinforcing portion 10 are connected to the second locking hole 15. When the fourth hook portion 10f is inserted and fixed in an overlapping manner, the third side surface 9a of the third reinforcing portion 9 and the fourth side surface 10a of the fourth reinforcing portion 10 become a flat surface without steps.

Then, although it is the upper cover member 6 and the lower cover member 7, these are shape | molded by cross-sectional view U shape. When the pair of first door frame body 2 and second door frame body 3 are fixedly locked by the first locking member 4 and the second locking member 5, the first door frame body 2 and the second door frame body. The upper and lower portions of 3 are open.
Therefore, the upper lid member 6 and the lower lid member 7 are the lid member of the released part, and are formed in a U shape in a sectional view, thereby serving as a reinforcing member for twisting of the door structure 1. have.
The upper lid member 6 is mounted and fixed to the open portions of the upper portions of the first door frame body 2 and the second door frame body 3, and the lower lid member 7 is disposed under the first door frame body 2 and the second door frame body 3. It is attached and fixed to the open part of.

Next, a method for assembling the door structure 1 will be described with reference to FIGS.
FIG. 1 is an exploded view of parts before assembly. From this state, as shown in FIG. 2, the first locking member 4 is disposed in the vicinity of the second reinforcing portion 11 of the second door frame body 3.
At this time, the second hook portion 11 f provided in the second reinforcing portion 11 of the second door frame body 3 is arranged in the middle of the first locking hole 13 provided in the first locking member 4. The position of the end of the one locking member 4 may be marked on the second door frame body 3.
Similarly, as shown in FIG. 2, the second locking member 5 is disposed in the vicinity of the fourth reinforcing portion 10 of the second door frame body 3.
At this time, the fourth hook portion 10f provided in the fourth reinforcing portion 10 of the second door frame body 3 is arranged in the middle of the second locking hole 15 provided in the second locking member 5. 2 The position of the end of the locking member 5 may be marked on the second door frame body 3.

And as shown in FIG. 3, the 1st contact surface 8b of the 1st door frame 2, the 2nd contact surface 11b of the 2nd door frame 3, and the 3rd contact surface 9b of the 1st door frame 2 The first door frame from above the second door frame body 3 in which the first locking member 4 and the second locking member 5 are arranged to contact the fourth contact surface 10b of the second door frame body 3 respectively. The body 2 is placed.
At this time, in order not to damage each member of the door structure 1, it is preferable to place each member on the work table.

Subsequently, based on FIGS. 4 to 13, the first locking member 4 and the second locking member 5 are connected to the first door frame body 2 and the first door frame body 2 in the first door frame body 2 and the second door frame body 3. How the two-door frame 3 is assembled will be described.
Here, the relationship between FIG. 4 and FIGS. 5 to 7 will be described.
4A and 4B are paired with the partial cross-sectional view of FIG.
(C) and (D) of FIG. 4 are paired with the partial cross-sectional view of FIG.
(E) and (F) of FIG. 4 are paired with the partial cross-sectional view of FIG.
Similarly, the relationship between FIG. 9 and FIGS. 10 to 12 will be described.
9A and 9B are paired with the partial cross-sectional view and the top partial cut view of FIG.
(C) and (D) of FIG. 9 are paired with the partial cross-sectional view of FIG.
(E) and (F) of FIG. 9 are paired with the partial cross-sectional view of FIG.

First, the shape of the periphery of the first locking hole 13 provided in the first locking member 4 will be described with reference to FIG.
A first tapered guide groove 13a is formed continuously on the left side of the first locking hole 13 shown in FIG.
Furthermore, the 1st hook part clamping groove 13b is provided in the left side of the 1st taper guide groove 13a continuously.
The first hook portion holding groove 13b has a plurality of hook portion holding grooves so that the first locking member 4 can be shared even if the plate thicknesses of the first door frame body 2 and the second door frame body 3 are changed. It is provided continuously. In the present embodiment, two hook portion sandwiching grooves having different groove widths of the first hook portion sandwiching groove A13c for thick plates and the first hook portion sandwiching groove B13d for thin plates are continuously provided.
In the embodiment of FIG. 4, thick plate members are used for the first door frame body 2 and the second door frame body 3.

Next, the shapes of the first hook portion 8f and the second hook portion 11f inserted into the first locking hole 13 provided in the first locking member 4 will be described with reference to FIG.
The second hook portion 11f is disposed on the back surface of the first hook portion 8f in the drawing when the first contact surface 8b and the second contact surface 11b are in contact with each other. This state can be confirmed from the cross-sectional views of FIGS.
The first hook portion 8f extends from the first end portion (reference end portion) 8c along the first end portion (reference end portion) 8c of the first contact surface 8b provided in the first reinforcing portion 8. It is provided.
Further, the first hook portion 8f is formed with a first tapered hook groove 8e sandwiched between the first tapered portion 8d and the first end portion (reference end portion) 8c. Similarly, the second hook portion 11f is The second reinforcing portion 11 is provided so as to extend from the first end portion (reference end portion) 11c along the first end portion (reference end portion) 11c of the second contact surface 11b.
The first hook portion 11f is formed with a second tapered hook groove 11e sandwiched between the first taper portion 11d and the first end portion (reference end portion) 11c.

From here, how the 1st locking member 4 has assembled | attached the 1st door frame 2 and the 2nd door frame 3 inside the 1st door frame 2 and the 2nd door frame 3 is demonstrated.
As shown in the partial sectional view of FIG. 5, the first hook portion 8f and the second hook surface 8b are brought into contact with the first contact surface 8b and the second contact surface 11b of the first door frame body 2 and the second door frame body 3, respectively. The hook portion 11f is brought into contact.
At this time, the 1st latching member 4 is previously arrange | positioned so that it may become the vicinity of the 1st hook part 8f and the 2nd hook part 11f. In this state, the first and second hook portions 8f and 11f are in contact with the first locking hole 13 of the first locking member 4 and are in a positional relationship with respect to the vertical and horizontal directions.
In addition, it is good to mark the position of the edge part of the 1st locking member 4 on the 2nd door frame body 3 beforehand so that it may be in this state.
5 is a first cut-off hole 13, a first tapered guide groove 13a, and a first hook portion clamping groove 13b (13d, 13c) for the first hook portion 8f and the second hook portion 11f. The positional relationship is shown.

The partial sectional view of FIG. 6 slides the first locking member 4 downward (actually laterally) from the partial sectional view of FIG. The hook portion 8f and the second hook portion 11f are inserted while being in contact with each other, and the first end contact surface (reference contact surface) 12 of the first locking member 4 and the first end of the first contact surface 8b. A state is shown in which the portion (reference end portion) 8c and the second end portion (reference end portion) 11c of the second contact surface 11b are in contact with each other.
6 and FIG. 4D are a first locking hole 13, a first tapered guide groove 13a, and a first hook with respect to the first hook portion 8f and the second hook portion 11f. The positional relationship between the portion clamping groove A13c and the first hook portion clamping groove B13d is shown.
4C shows the first hook hole 8, the first tapered guide groove 13a, and the first hook portion clamping groove A13c with respect to the first hook portion 8f and the second hook portion 11f as viewed from above. The positional relationship of 1st hook part clamping groove B13d is shown.

The upper surface partial cut view of FIG. 7 is the same as the upper surface partial cut view of FIG. By moving the first locking member 4 in a state where it is in contact with the first end (reference end) 8c of 8b and the second end (reference end) 11c of the second contact surface 11b, By engaging the first tapered hook groove 8e of the first hook portion 8f and the second tapered hook groove 11e of the second hook portion 11f with the first hook portion clamping groove A13c of the first locking member 4, the first hook portion is engaged. 8f shows a state in which the members of the second hook portion 11f are clamped in the first hook portion clamping groove A13c (shaded portion).
Similarly, in the partial cross-sectional view of FIG. 7, the first hook portion 8 f of the first hook portion 8 f and the second taper hook groove 11 e of the second hook portion 11 f are sandwiched by the first hook portion of the first locking member 4. A state in which the members of the first hook portion 8f and the second hook portion 11f are held in the first hook portion holding groove A13c by being engaged with the groove A13c is shown.

FIG. 4E shows a first locking hole 13, a first tapered guide groove 13a, and a first hook portion clamping groove A13c with respect to the first hook portion 8f and the second hook portion 11f as viewed from above. The positional relationship of 1st hook part clamping groove B13d is shown.
Thereby, it turns out that the 1st hook part 8f and the 2nd hook part 11f are clamped by 1st hook part clamping groove A13c.
FIG. 4 (F) shows the first locking hole 13, the first tapered guide groove 13a, the first hook portion clamping groove A13c, and the first hook with respect to the first hook portion 8f and the second hook portion 11f. The positional relationship of the part clamping groove B13d is shown.
Thereby, it turns out that the 1st hook part 8f and the 2nd hook part 11f are clamped by 1st hook part clamping groove A13c (shaded part).
Thereby, the 1st door frame 2 and the 2nd door frame 3 are connected and fixed.

Further, FIG. 8 is a view showing an assembled state when thin plates are used for the members of the first door frame body 2 and the second door frame body 3.
8 (A), (B), (C), and (D) have the same arrangement as the drawings of FIG. 4 (A), (B), (C), and (D). The drawings of FIGS. 8E and 8F are different from the drawings of FIGS. 4E and 4F.
8E and 8F use thin plates for the first door frame body 2 and the second door frame body 3, so that the first hook portion clamping groove 13b and the first hook portion 8f The engagement between the first tapered hook groove 8e and the second tapered hook groove 11e of the second hook portion 11f becomes deeper. Therefore, in the first hook portion holding groove 13b, the position where the first hook portion 8f and the second hook portion 11f are held changes from the first hook portion holding groove A13c to the position of the first hook portion holding groove B13d. Thereby, the clamping force which clamps the 1st hook part 8f and the 2nd hook part 11f does not change.
Thus, by providing a plurality of hook portion holding grooves in the first hook portion holding groove 13b formed in the first locking member 4, the plate of the members of the first door frame body 2 and the second door frame body 3 is provided. Even if the thickness changes, one first locking member 4 can be shared.

Next, the shape of the periphery of the second locking hole 15 provided in the second locking member 5 will be described based on FIG.
A second tapered guide groove 15a is formed continuously on the left side of the second locking hole 15 shown in FIG.
Further, a second hook portion clamping groove 15b is provided continuously on the left side of the second tapered guide groove 15a.
The second hook portion holding groove 15b has a plurality of hook portion holding grooves so that the second locking member 5 can be shared even if the plate thickness of the first door frame body 2 and the second door frame body 3 is changed. It is provided continuously. In the present embodiment, two hook portion sandwiching grooves having different groove widths are provided in succession, the second hook portion sandwiching groove A15c for thick plates and the second hook portion sandwiching groove B15d for thin plates.
In the embodiment of FIG. 9, thick plate members are used for the first door frame body 2 and the second door frame body 3.

Next, the shapes of the third hook portion 9f and the fourth hook portion 10f inserted into the second locking hole 15 provided in the second locking member 5 will be described with reference to FIG.
The fourth hook portion 10f is arranged on the back surface of the third hook portion 9f in the drawing by contacting the third contact surface 9b and the fourth contact surface 10b. This state can be confirmed from the cross-sectional views of FIGS.
The third hook portion 9f extends from the third end portion (reference end portion) 9c along the third end portion (reference end portion) 9c of the third contact surface 9b provided in the third reinforcing portion 9. It is provided.
The third hook portion 9f is formed with a third tapered hook groove 9e sandwiched between the third tapered portion 9d and the third end portion (reference end portion) 9c. Similarly, the fourth hook portion 10f is The fourth reinforcing portion 10 is provided so as to extend from the fourth end portion (reference end portion) 10c along the fourth end portion (reference end portion) 10c of the fourth contact surface 10b.
The fourth hook portion 10f is formed with a fourth tapered hook groove 10e sandwiched between the fourth tapered portion 10d and the fourth end portion (reference end portion) 10c.

From here, how the 2nd latching member 5 has assembled | attached the 1st door frame 2 and the 2nd door frame 3 inside the 1st door frame 2 and the 2nd door frame 3 is demonstrated.
As shown in the partial cross-sectional view of FIG. 10, the third hook portion 9f and the fourth hook surface 9b are brought into contact with the third contact surface 9b and the fourth contact surface 10b of the first door frame body 2 and the second door frame body 3, respectively. The hook portion 10f is brought into contact.
At this time, the second locking member 5 is disposed in advance so as to be in the vicinity of the third hook portion 9f and the fourth hook portion 10f. In this state, the vertical and horizontal positional relationships are such that the third hook portion 9f and the fourth hook portion 10f can be inserted while being in contact with the second locking hole 15 of the second locking member 5.
In addition, it is good to mark the position of the edge part of the 2nd latching member 5 on the 2nd door frame 3 beforehand so that it may be in this state.
Further, the top partial cutaway view of FIG. 10 shows the second locking hole 15, the second tapered guide groove 15a, the second hook portion clamping groove A15c, the second hook portion 9f and the fourth hook portion 10f. The positional relationship of hook part clamping groove B15d is shown.

11 is a partial cross-sectional view of FIG. 10 in which the second locking member 5 is slid upward (actually sideways) in the drawing to contact the second end contact surface (reference). A contact surface) 14 and a third end surface (reference end portion) 9c of the third contact surface 9b and a fourth end portion (reference end portion) 10c of the fourth contact surface 10b are shown. Yes.
FIG. 11D is a top cutaway view of FIG. 11 and FIG. 9D is a second locking hole 15, a second tapered guide groove 15a, and a second hook with respect to the third hook portion 9f and the fourth hook portion 10f. The positional relationship between the portion clamping groove A15c and the second hook portion clamping groove B15d is shown.
FIG. 9C shows the second locking hole 15, the second tapered guide groove 15a, and the second hook portion clamping groove A15c with respect to the third hook portion 9f and the fourth hook portion 10f as viewed from above. The positional relationship of 2nd hook part clamping groove B15d is shown.

The upper surface partial cut view of FIG. 12 is the same as the upper surface partial cut view of FIG. 11, but the second end contact surface (reference contact surface) 14 and the third contact surface of the second locking member 5 in the right direction of the drawing. By moving the second locking member 5 in a state of being in contact with the third end (reference end) 9c of 9b and the fourth end (reference end) 10c of the fourth contact surface 10b, By engaging the third tapered hook groove 9e of the third hook portion 9f and the fourth tapered hook groove 10e of the fourth hook portion 10f with the second hook portion clamping groove A15c of the second locking member 5, the third hook portion A state is shown in which the members 9f and the fourth hook portion 10f are clamped in the second hook portion clamping groove A15c (shaded portion).
Similarly, in the partial cross-sectional view of FIG. 12, the third hook portion 9 f of the third hook portion 9 f and the fourth hook portion 10 f of the fourth hook portion 10 f are sandwiched by the second hook portion of the second locking member 5. A state in which the members of the third hook portion 9f and the fourth hook portion 10f are held in the second hook portion holding groove A15c by being engaged with the groove A15c is shown.

FIG. 9E shows a second locking hole 15, a second tapered guide groove 15a, and a second hook portion clamping groove A15c with respect to the third hook portion 9f and the fourth hook portion 10f as viewed from above. The positional relationship of 2nd hook part clamping groove B15d is shown.
Thereby, it turns out that the 3rd hook part 9f and the 4th hook part 10f are clamped by 2nd hook part clamping groove A15c.
FIG. 9F shows the second locking hole 15, the second tapered guide groove 15a, the second hook portion clamping groove A15c, the second hook with respect to the third hook portion 9f and the fourth hook portion 10f. The positional relationship of the part clamping groove B15d is shown.
Thereby, it turns out that the 3rd hook part 9f and the 4th hook part 10f are clamped by 2nd hook part clamping groove A15c (shaded part).
Thereby, the 1st door frame 2 and the 2nd door frame 3 are connected and fixed.

Further, FIG. 13 is a view showing an assembled state when thin plates are used for the members of the first door frame body 2 and the second door frame body 3.
The drawings of FIGS. 13A, 13B, 13C, and 13D are exactly the same as the layout of FIGS. 9A, 9B, 9C, and 9D. FIGS. 13E and 13F are different from FIGS. 9E and 9F.
In the drawings of FIGS. 13E and 13F, since thin plates are used for the first door frame body 2 and the second door frame body 3, the second hook portion clamping groove 15b and the third hook portion 9f The engagement between the third tapered hook groove 9e and the fourth tapered hook groove 10e of the fourth hook portion 10f becomes deeper. Therefore, the position where the third hook part 9f and the fourth hook part 10f are clamped in the second hook part clamping groove 15b is changed from the second hook part clamping groove A15c to the position of the second hook part clamping groove B15d. Thereby, the clamping force which clamps the 3rd hook part 9f and the 4th hook part 10f does not change.
Thus, by providing a plurality of hook portion holding grooves in the second hook portion holding groove 15b formed in the second locking member 5, the plate of the members of the first door frame body 2 and the second door frame body 3 is provided. Even if the thickness changes, one second locking member 5 can be shared.

Thus, the first door frame body 2 and the second door frame body 3 are fixedly locked by the first locking member 4 and the second locking member 5, and the upper lid member 6 and the lower lid member 7 are fixed to the door structure 1. After being attached vertically, the door structure 1 is completed when the knob 16 and the key slot 17 are attached.
The completed door structure 1 is shown in FIG.
The door structure 1 includes a first door frame 2, a second door frame 3, a first locking member 4, a second locking member 5, an upper lid member 6, a lower lid member 7, a knob 16, and a key insertion. Since it is comprised by the opening | mouth 17 and can be completed by mechanical assembly, it can provide the cheap door structure 1 which is excellent also in external appearance and has little load. Moreover, the first locking member 4 and the second locking member 5 can be shared.

  As described above, according to the door structure 1 according to the present embodiment, the door structure 1 includes the first door frame body 2 and the second door frame body 3. A first side face 8a and a first abutting face 8b, which are provided at one side end of the door frame body 2 and are formed in a U-shaped cross-sectional view opened in the inner direction of the first door frame body 2, are provided. A first hook portion including a first reinforcing portion 8 and a first tapered hook groove 8e extending from a first end portion (reference end portion) 8c on the open side of the first contact surface 8b and having one end opened. 8f, a second side surface 11a and a second contact surface provided at one side end of the second door frame body 3 and formed in a U-shaped cross-sectional view opened in the inner direction of the second door frame body 3. A second reinforcing portion 11 provided with 11b, and a second tapered hook groove extending from the second end portion (reference end portion) 11c on the open side of the second contact surface 11b and having one end open. 1e is provided between the first hook frame 11f, the first door frame body 2 and the second door frame body 3, the first end (reference end) 8c and the second end (reference end). A first engagement hole 13 into which the first hook portion 8f and the second hook portion 11f are inserted is formed in the first end contact surface (reference contact surface) 12 that contacts the 11c, and the first engagement member 13c. The stop hole 13 is provided with a first tapered guide groove 13a, and a groove corresponding to the plate thickness of the first door frame body 2 and the second door frame body 3 is provided at the end of the first tapered guide groove 13a. A first locking member 4 having a U-shaped cross-sectional view provided with a clamping groove having a width, and abutting and positioning the first hook portion 8f and the second hook portion 11f. Inserted into the first locking hole 13, the first end contact surface (reference contact surface) 12 of the first locking member 4 is replaced with the first end (reference end) 8 c and the second end (reference end). Part) 1 c, and the first tapered hook groove 8e and the second tapered hook groove 11e are guided by the first tapered guide groove 13a, and the sandwiching groove is the first end (reference end) 8c and the second. By moving along the end surface of the end portion (reference end portion) 11c, the first tapered hook groove 8e and the second tapered hook groove 11e and the sandwiching groove are fitted to each other, and the first door frame body 2 The second door frame 3 is positioned and fixed.

According to this configuration, the first hook portion 8 f and the second hook portion 11 f are abutted and positioned, inserted into the first locking hole 13 of the first locking member 4, and the first end of the first locking member 4. The portion contact surface (reference contact surface) 12 is brought into contact with the first end portion (reference end portion) 8c and the second end portion (reference end portion) 11c, and the first tapered hook groove 8e and the second taper. The hook groove 11e and the first hook portion sandwiching groove 13b are guided and fitted by the first tapered guide groove 13a, and the first end portion (reference end portion) 8c and the second end portion (reference end portion) 11c are connected. First, since the first door frame body 2 and the second door frame body 3 on the first reinforcing portion 8 and the second reinforcing portion 11 side are positioned and fixed by pulling along the end surface to deepen the fitting, Since assembly is simple, assembly time can be shortened.
Further, since the first taper hook groove 8e and the second taper hook groove 11e and the first hook portion clamping groove 13b are only guided and fitted by the first taper guide groove, welding is performed as in the prior art. Polishing finish through a grinding blade made of a grinder or glass fiber can be omitted to remove the trace, and the surface of the member can be used as it is.
Further, since the first taper hook groove 8e and the second taper hook groove 11e and the first hook portion sandwiching groove 13b are engaged at right angles, the deformation of the respective members can be eliminated.
Further, the first door frame body 2 and the second door frame body 3 according to the width of the first locking hole 13 of the first locking member 4 and the widths of the first tapered hook groove 8e and the second tapered hook groove 11e. The first taper hook groove 8e and the second taper hook groove 11e and the first hook portion clamping groove 13b are fitted at a right angle so as to be automatically corrected and aligned. be able to. That is, since a slight positional shift when the first door frame body 2 is placed on the second door frame body 3 can be absorbed, the work can be simplified and the burden on the operator can be reduced.
And, by these, it is possible to provide an inexpensive door structure with no scratches on the surface with good work efficiency.

Next, according to the door structure 1, the first hook portion clamping groove 13b of the first locking member 4 can be shared even if the plate thicknesses of the first hook portion 8f and the second hook portion 11f are changed. Two or more first hook part clamping grooves A13c, first hook part clamping grooves B13d,... Are provided.
Therefore, the 1st latching member 4 can be shared with the other door structure body from which plate | board thickness differs, and the unit price of the 1st latching member 4 can be lowered | hung expecting the increase in quantity.
Moreover, the complexity of component management can be reduced by sharing.

Next, according to the door structure 1, the first end contact surface (reference contact surface) 12 of the first locking member 4 is used as the reference contact surface, and the first end portion of the first contact surface 8b. (Reference end portion) 8c and the second end portion (reference end portion) 11c of the second contact surface 11b are used as reference end portions, whereby the first hook portion 8f and the second hook portion 11f are contacted and positioned. Inserted into the first locking hole 13 of the first locking member 4, the first end contact surface (reference contact surface) 12 of the first locking member 4 is changed to the first end (reference end) 8 c and The first taper hook groove 8e, the second taper hook groove 11e, and the first hook portion clamping groove 13b are guided by the first taper guide groove 13a while being brought into contact with the second end portion (reference end portion) 11c. The first reinforcing portion 8 and the second strength are deepened by pulling along the end surfaces of the first end portion (reference end portion) 8c and the second end portion (reference end portion) 11c. When the first door frame 2 and the second door frame 3 on the part 11 side are positioned and fixed, the first side surface 8a of the first door frame 2 and the second side surface 11a of the second door frame 3 are flat. It is configured.
That is, the first side surface 8a of the first door frame body 2 and the second side surface 11a of the second door frame body 3 have a first end portion (reference end portion) 8c of the first contact surface 8b which is a reference end portion, and The distance is determined by design from the second end (reference end) 11c of the second contact surface 11b. Therefore, the first end contact surface (reference contact surface) 12 of the first locking member 4 that is the reference contact surface and the first end portion (reference end) of the first contact surface 8b that is the reference end portion. Portion) 8c and the second end surface (reference end portion) 11c of the second contact surface 11b contact each other, the first side surface 8a of the first door frame body 2 and the second side surface 11a of the second door frame body 3 are Since the structure becomes flat, it is possible to eliminate a sense of incongruity in appearance and to perform a correction work by shifting the first side surface 8a of the first door frame body 2 and the second side surface 11a of the second door frame body 3. It can be lost.
Accordingly, the first door frame body 2 and the second door frame body according to the width of the first locking hole 13 of the first locking member 4 and the widths of the first tapered hook groove 8e and the second tapered hook groove 11e. 3 is such that the first taper hook groove 8e and the second taper hook groove 11e and the first hook portion holding groove 13b are guided by the first taper guide groove 13a so as to intersect at right angles. Thus, it is possible to automatically correct and align the position. That is, since a slight positional shift when the first door frame body 2 is placed on the second door frame body 3 can be absorbed, the work can be simplified and the burden on the operator can be reduced.

According to the door structure 1, the height of the first locking member 4 having a U-shaped cross-sectional view is configured to be slidable between the first door frame body 2 and the second door frame body 3. It has become.
As a result, the U-shape of the first locking member 4 in the cross-sectional view is such that the first hook portion 8f and the second hook portion 11f are inserted into the first locking hole 13 of the first locking member 4 in order to The locking member 4 can be smoothly slid when sliding toward the first hook portion 8f and the second hook portion 11f.
Further, the height of the first locking member 4 in a U-shaped cross-sectional view is a height that allows the first locking member 4 to slide between the first door frame body 2 and the second door frame body 3. Can be prevented from falling down when sliding toward the first hook portion 8f and the second hook portion 11f. This is because the operation of sliding the first locking member 4 between the first door frame body 2 and the second door frame body 3 is not an operation that can be performed by complete visual observation, so that the burden on the operator can be reduced.

  Note that the present invention is not limited to the above-described embodiment, and various improvements and modifications can be made without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Door structure 2 1st door frame body 3 2nd door frame body 4 1st latching member 8 1st reinforcement | strengthening part 8a 1st side surface 8b 1st contact surface 8c 1st edge part (reference | standard edge part)
8d 1st taper part 8e 1st taper hook groove 8f 1st hook part 11 2nd reinforcement | strengthening part 11a 2nd side surface 11b 2nd contact surface 11c 2nd edge part (reference | standard edge part)
11d 2nd taper part 11e 2nd taper hook groove 11f 2nd hook part 12 1st edge contact surface (reference contact surface)
13 1st locking hole 13a 1st taper guide groove 13b 1st hook part clamping groove 13c 1st hook part clamping groove A
13d 1st hook part clamping groove B
14 Second end contact surface (reference contact surface)
15 2nd latching hole 15a 2nd taper guide groove 15b 2nd hook part clamping groove 15c 2nd hook part clamping groove A
15d 2nd hook part clamping groove B
16 Knob 17 Key slot

Claims (4)

In the door structure composed of the first door frame and the second door frame,
1st provided with the 1st side surface and 1st contact surface which were provided in one side edge part of the said 1st door frame body, and were formed in cross-sectional view U shape open | released in the inner side direction of the 1st door frame body. Strengthening part,
A first hook portion including a first tapered hook groove extending from the first end portion on the open side of the first contact surface and having one end open;
A second side provided on one side end of the second door frame body and having a second side surface and a second contact surface formed in a U-shaped cross-sectional view opened in the inner direction of the second door frame body. Strengthening part,
A second hook portion extending from the second end portion on the open side of the second contact surface and having a second tapered hook groove having one end opened, and having the same shape as the first hook portion;
A first U-shaped cross section having a first end abutting surface disposed between the first door frame and the second door frame and abutting the first end and the second end. A locking member;
In a state where the first hook portion and the second hook portion are overlapped with each other and are in contact with each other based on the same shape of the first hook portion and the second hook portion. A first locking hole to be inserted;
A first tapered guide groove provided in the first locking hole;
A holding groove provided at an end of the first tapered guide groove and having a groove width corresponding to the plate thickness of the first hook portion and the second hook portion;
With
The first door frame body and the second door frame body are configured so that the first end contact surface of the first locking member is in contact with the first end portion and the second end portion. The first taper hook groove of the first hook portion and the second taper hook groove of the second hook portion are fitted to the holding groove of the first locking member to be positioned and fixed to each other. A door structure characterized by   The sandwiching groove of the first locking member is provided with two or more sandwiching grooves having different groove widths corresponding to changes in the plate thickness of the first hook portion and the second hook portion. The door structure according to claim 1, wherein:   3. The door structure according to claim 1, wherein a first side surface of the first door frame body and a second side surface of the second door frame body are flush with each other at an end surface of the door structure body. body. The height of the U-shaped cross-sectional view of the first locking member is a slidable height between the first door frame body and the second door frame body. Item 4. The door structure according to any one of Items 3 to 4.

Images