JP2008057623A - Joining structure for frame, and air conditioner stand using it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a joining structure for a frame with simplified joining means by using a deep groove for self-tapping screw screwing formed in a longitudinal direction of the frame as the joining means, and to provide an air conditioner stand using it. <P>SOLUTION: In the frame joining structure, an end of a second frame (a longitudinal frame 3) is joined to an end of a first frame (a transverse frame 2) provided with the deep groove 22 having a screwing part 22a for self-tapping screw screwing. In a longitudinal end of the deep groove 22 originally to be used for a purpose other than joining of the frames, self-tapping screws 33, 14 are screwed together with the screw part 22a from a groove opening face side and an end face 2a side of the first frame exposing the deep groove 22. The two frames are joined together in an L-shape without using joint members by the self-tapping screws 33, 14. The air conditioner stand is composed of a horizontal member by the frame joining structure. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a frame connecting structure, and in particular, an L-shaped end portion of a frame provided with a deep groove in a longitudinal direction for selectively screwing a tapping screw at an appropriate position and an end portion of another frame. The present invention relates to a frame coupling structure. An apparatus for using such a frame connection structure is an air conditioner stand, and the present invention also relates to an air conditioner stand using such a connection structure.

  Utilizing a frame coupling structure in which the end of a frame having a deep groove in the longitudinal direction for selectively screwing a tapping screw at an appropriate position and the end of another frame are joined in an L shape. For example, the air-conditioning stand described in Patent Document 1 can be cited. This air conditioner stand is shown in FIGS.

  As shown in the perspective view of FIG. 10, the air conditioner table described in Patent Document 1 is roughly divided by a pair of front and rear horizontal frames 102 and a pair of left and right vertical frames 103 with respect to four columns 101 erected at four corners. A horizontal member 104 assembled in a square shape is attached. In addition, a pair of left and right base frames 105 for mounting an air conditioner are placed between a pair of front and rear horizontal frames 102 so as to be arranged at an appropriate interval. This interval is changed according to the size of the air conditioner.

  As shown in the exploded perspective view of the connecting portion in FIG. 11, the support column 101, the horizontal frame 102, and the vertical frame 103 are each formed in a substantially rectangular cross-sectional shape of a hollow shape, and are each made of aluminum or an aluminum-based alloy. The extrusion mold material is used. In addition, a deep groove 106 is formed in the central portion in the width direction of the upper surface forming the belt-like flat portion above the horizontal frame 102 so as to extend in the longitudinal direction from the end surface of the upper surface. The deep groove 106 allows the base frame 105 to be attached at an appropriate interval corresponding to the size of the air conditioner. For this purpose, a screw threaded portion 106a having a groove width that allows the tapping screw to be screwed at an arbitrary position is formed in the lower portion (bottom side) of the deep groove 106, and the base frame is formed in the upper portion of the deep groove 106. A guide groove portion 106b is formed in which a boss portion (not shown) through which a tapping screw formed on the lower surface of 105 is inserted is slidably inserted.

  The horizontal frame 102 and the vertical frame 103 are connected in an L shape via a joint member 107 at each end in order to form a rectangular horizontal member 104. As shown in FIG. 11 and FIG. 12 which is a plan sectional view of the connecting portion, the joint member 107 includes a base wall portion 107a disposed obliquely in plan view and in contact with the inner corner surface 101a of the cylindrical column 101. Two connecting wall portions 107b arranged on both sides of the base wall portion 107a so as to be orthogonal to each other are provided. The two connecting wall portions 107 b are disposed between the end surfaces of the horizontal frame 102 and the vertical frame 103 and the side surface 101 b of the support column 101. In addition, a joint insertion portion 107 c that is inserted into the cylindrical shape of the horizontal frame 102 or the vertical frame 103 is formed on the surface side of the horizontal frame 102 or the vertical frame 103 of the two connecting wall portions 107 b. Further, on the surface side of the support column 101 of the two connecting wall portions 107b, there is a joint portion 107d having a substantially T-shape in plan view that is slidably fitted into a joint groove portion 101c formed on the side surface 101b of the support column 101. Is formed. Further, the base wall portion 107a is formed with a bolt insertion hole 107e for bolting the joint member 107 via a bolt insertion hole 101d formed in the inner corner surface 101a of the support column 101. A plurality of bolt insertion holes 101d of the support column 101 are provided in the height direction.

  In order to connect the horizontal frame 102 and the vertical frame 103, the joint insertion portion 107 c of the joint member 107 is inserted into the horizontal frame 102 and the vertical frame 103, respectively. Further, as shown in FIG. 12, a hook-shaped engagement portion 107f that can be flexibly deformed is formed at the insertion end portion of the joint insertion portion 107c. In addition, on the inner side surfaces of the horizontal frame 102 and the vertical frame 103, locked portions 102f and 103f cut and raised in an inward projecting manner are formed so as to be elastically deformed and engaged with the engaging portion 107f. ing. Therefore, the inserted joint insertion portion 107c is engaged with the locked portions 102f and 103f that are elastically deformed, so that the end portions of the pair of front and rear horizontal frames 102 and the end portions of the pair of left and right vertical frames 103 are joint members. A rectangular horizontal member 104 is formed by being coupled in an L shape at each corner via 107.

Further, in order to attach the horizontal member 104 assembled in this way to the column, the joint portion 107d of the joint member 107 is slidably fitted into the joint groove portion 101c formed on the side surface 101b of the column 101. Match. Further, the bolt insertion hole 107e formed in the base wall portion 107a of the joint member 107 is matched with the bolt insertion hole 101d having an appropriate height formed in the inner corner surface 101a of the support column 101, and these bolt insertion holes 107e. , 101d, the bolt 108 is inserted. On the other hand, the holder body 110 holding the nut 109 is attached to the holder guide portion 101e formed between the joint groove portions 101c of the support column 101 while sliding in the height direction. Then, the horizontal member 104 can be attached to the column 101 at an arbitrary height position by fastening the nut 109 to the bolt 108.
JP 2005-299953 A

  As described above, in the air conditioner stand described in Patent Document 1, the horizontal frame 102 and the vertical frame 103 in which the deep groove 106 is formed on the upper surface are coupled via the joint member 107 and the holder body 110 having a complicated structure. In addition, since an engagement structure by elastic deformation is used for this connection, there is a problem that high processing accuracy is required and material restrictions are increased in order to increase the connection strength. For this reason, the cost reduction by simplification of a coupling | bonding means was calculated | required. The deep groove 106 formed on the upper surface is formed over the entire length in the longitudinal direction of the horizontal frame 102 and the cross-section is exposed at the end face of the horizontal frame 102. The deep groove 106 is a tapping screw for attaching the base frame 105. It was used only for screwing and was not used for anything other than mounting the base frame 105.

  The present invention has been made on the basis of such a background, and uses a deep groove for tapping screw threading formed in the longitudinal direction of the frame as the coupling means, thereby simplifying the coupling means. It aims at providing an air-conditioning stand using this.

  The frame coupling structure according to the present invention solves such a problem, and is a frame coupling structure in which ends of the first frame and the second frame are coupled in an L shape. The first frame includes at least one strip-shaped first plane portion extending in the longitudinal direction, and a deep groove extending in the longitudinal direction is formed in the first plane portion. In addition, the deep groove is formed with a screw threading portion having a groove width that allows the tapping screw to be screwed to the bottom side, and a cross section of the deep groove is exposed at the end face of the first frame. Further, the second frame has a second plane portion that is overlapped with the first plane portion, and a third plane portion that covers an end surface of the first frame where a cross section of the deep groove is exposed. The second plane portion is screwed to the screw threaded portion by a tapping screw inserted in a direction perpendicular to the first plane portion, and the third plane portion is a deep groove cross-section with respect to the screw threaded portion. Is fixed by a tapping screw inserted in a direction perpendicular to the exposed end face.

  According to the frame coupling structure according to the present invention having such a structural feature, a direction perpendicular to the first flat portion where the deep groove opens with respect to the screw threaded portion of the deep groove formed in the first frame. The second frame is screwed from two directions perpendicular to the end face where the cross section of the deep groove is exposed. As a result, the first frame and the second frame are coupled by simply screwing without using a joint member as in the prior art. Moreover, since the screwing hole required for screwing is also used as the screwing part of the deep groove used for other purposes, the hole machining operation is reduced.

  Moreover, it is preferable that the deep groove is formed with a screw guide portion having a groove width larger than the groove width of the screw threaded portion on the opening side. If comprised in this way, the tapping screw for couple | bonding a flame | frame can be easily screwed by the screw threading part by a screw guide part, and workability | operativity improves.

  Moreover, it is preferable to comprise the 1st frame and the 2nd frame from the extrusion type | mold material made from the aluminum or aluminum-type alloy extruded in the longitudinal direction. If comprised in this way, the deep groove which is the main component of the 1st frame can be easily formed by extrusion. In addition, by configuring the first frame and the second frame from an extrusion mold material made of aluminum or an aluminum-based alloy, it is possible to provide a frame structure with an excellent appearance, and the frame is reduced in weight so that it can be transported and assembled. Workability in work is improved.

  In addition, the first frame has a belt-like fourth plane part orthogonal to the first plane part at a side in the longitudinal direction, and the third plane part and the fourth plane part are L-shaped end coupling parts. The first frame and the second frame are joined to form a shaped outer surface. Furthermore, it can be set as the coupling | bonding structure of the flame | frame which couple | bonds the edge part of a 3rd frame orthogonally with respect to the coupling | bond part of the 1st frame and 2nd frame couple | bonded in this way. In this case, the third frame may be provided with two plane portions that are fixed to the third plane portion and the fourth plane portion by overlapping from the L-shaped outside of the coupling portion. . If comprised in this way, with respect to the coupling | bond part to which a 1st frame and a 2nd frame are couple | bonded in L shape, a 3rd frame is connected to a 1st frame and a 2nd frame, and a coupling member is attached Can be easily combined without use. Further, the fixing position in the longitudinal direction of the third frame relative to the first frame and the second frame can be easily changed.

  In addition, the third frame may be screwed together with the third flat portion by a tapping screw in a direction perpendicular to the end surface at which the cross section of the deep groove is exposed with respect to the screw threaded portion. If it does in this way, the screw which connects the 3rd frame to the 2nd frame and the screw which connects the 2nd frame to the 1st frame can be shared, and the joint structure of a frame can be simplified.

  The air conditioner mount according to the present invention is an air conditioner mount in which a pair of front and rear horizontal frames and a pair of left and right vertical frames are attached to pillars erected at four corners, and the horizontal frame and the vertical frame are the first frame. And the second frame, and the first frame and the second frame are coupled by the frame coupling structure. According to the air conditioner base of the present invention configured as described above, a horizontal member having a horizontal frame and a vertical frame as constituent elements can be formed without a joint member, and cost reduction can be achieved. Further, the base frame can be attached to the deep groove formed in the horizontal frame, and the attachment position can be appropriately selected according to the size of the air conditioner.

  The air conditioner mount according to the present invention is an air conditioner mount in which a pair of front and rear horizontal frames and a pair of left and right vertical frames are attached to support columns provided upright at four corners. Each frame may be composed of one frame, a second frame, and a third frame. Furthermore, in this case, the horizontal frame, the vertical frame, and the support column may be coupled by the coupling structure of the first frame, the second frame, and the third frame. According to the air conditioner stand of the present invention configured as described above, a horizontal member having a horizontal frame and a vertical frame as constituent elements can be coupled without a joint member. In addition, since the flat portion of the column as the third frame is coupled so as to overlap the outer surface of the coupling portion of the horizontal member, the position in the length direction of the planar portion constituting the column superimposed on the outer surface is appropriately selected. By doing so, a horizontal member can be attached to the appropriate height position of a support | pillar. Further, the base frame can be attached to the deep groove formed in the horizontal frame, and the attachment position can be appropriately selected according to the size of the air conditioner.

  Further, if the base frame on which the air conditioner is placed between the horizontal frames is constructed in this way, and the base frame is selectively fixed to an appropriate position with a tapping screw with respect to the screw threaded portion, the base frame Since the mounting position can be easily adjusted in the left-right direction, the workability of the air-conditioner mounting work is improved.

  Further, in this case, the horizontal frame is formed so that the deep groove opens to a flat surface portion forming an upper surface, and the base frame is screwed to the screw threaded portion from above with a tapping screw. It is preferable to do. In this way, the workability of the air conditioner mounting work is further improved.

  According to the frame coupling structure of the present invention, the first frame and the second frame are coupled simply by screwing without using a joint member as in the prior art. Moreover, since the screwing hole required for screwing is also used as the screwing part of the deep groove used for other purposes, the hole machining operation is reduced. Further, according to the air conditioner mounting base of the present invention, the horizontal frame and the vertical frame are constituted by the first frame and the second frame, respectively, and are coupled by the frame coupling structure. A horizontal member as a component can be formed without a joint member, and cost can be reduced.

  DESCRIPTION OF EMBODIMENTS Hereinafter, a frame coupling structure according to an embodiment of the present invention and an air conditioner stand using the frame coupling structure will be described with reference to the drawings. In addition, in this specification, when referring to the directions such as left and right and near side, the direction with the left front side in the air conditioner table shown in FIG.

  As shown in the perspective view of FIG. 1, the air conditioner stand is assembled in a substantially rectangular shape by a pair of front and rear horizontal frames 2 and a pair of left and right vertical frames 3 with respect to four columns 1 erected at four corners. A horizontal member 4 is attached. A pair of base frames 5 for placing an air conditioner are placed between a pair of front and rear horizontal frames 2 at a predetermined interval. Here, the support | pillar 1, the horizontal frame 2, and the vertical frame 3 are respectively corresponded to the 3rd frame, 1st frame, and 2nd frame as a component in the coupling | bonding structure of the flame | frame concerning this invention.

  The front and rear columns 1 of the columns 1 are formed symmetrically with respect to each other, and the left and right columns 1 are formed symmetrically with each other. The front and rear horizontal frames 2 are formed symmetrically with each other, and the left and right vertical frames 3 are formed symmetrically with each other. In the following description of the frame coupling structure and the structure of each frame according to the present invention, the frame coupling unit at the left back in FIG. 1 and the frame coupled to the coupling unit will be described, and other frame coupling units and frames will be described. Since they are in the symmetrical relationship as described above, the description thereof is omitted.

  As shown in FIGS. 1, 3, and 4, the column 1 has elevation surfaces 11 and 12 that form an L-shaped cross-section, and these elevation surfaces 11 and 12 are the two in the present invention. It forms a flat part, and is arranged and erected so that the upper part is in contact with the outside of the coupling part of the horizontal member 4. Further, a plurality of through holes 15 and 16 are formed at predetermined intervals in the height direction in order to screw the support column 1 to the horizontal member 4 with tapping screws 13 and 14 in each of the elevational surface portions 11 and 12. ing. An adjuster 17 formed in an L shape from a vertical portion and a horizontal portion is attached below the support column 1. The plurality of through holes 15, 16 formed in the upright portions 11, 12 are formed at the same height position at the same interval between the compatible surface portions 11, 12.

  As shown in FIG. 2, the horizontal frame 2 is made of an extrusion mold material made of aluminum or an aluminum-based alloy having a substantially square cylindrical cross section. The upper surface portion 21 of the horizontal frame 2 forms a belt-like flat surface portion, and a deep groove 22 is formed at the center in the width direction so as to extend from the end surface 2a of the upper surface portion 21 over the entire length in the longitudinal direction. The deep groove 22 enables the base frame 5 to be attached at an appropriate interval corresponding to the size of the air conditioner. For this purpose, as shown in FIG. 9, a screw threaded portion 22a having a groove width that allows the tapping screw 23 to be screwed at an arbitrary position is formed in the lower portion (bottom side) of the deep groove 22, and the deep groove A screw guide portion 22b is formed in an upper portion (on the upper surface portion 21 side) of 22 so that a boss portion 51 formed on the lower surface of the base frame 5 is slidably fitted. The boss portion 51 is for inserting the tapping screw 23. Furthermore, the end surface 2a of the horizontal frame 2 is in a state where the extruded mold material is cut, and is formed so that the cross section of the deep groove 22 is exposed as it is. In addition, said upper surface part 21 comprises the 1st plane part as a component of the coupling | bonding structure of the flame | frame which concerns on this invention.

  Furthermore, a rising wall portion 24 is formed along the longitudinal direction at the outer edge portion of the upper surface portion 21 of the horizontal frame 2. The upright wall portion 24 is adapted to follow the end portion of the base frame 5 in the longitudinal direction, and functions as a guide when the base frame 5 is moved along the longitudinal direction of the horizontal frame 2. Further, the rising wall portion 24 is continuous with the side surface portion 25 of the lateral frame 2 on the side thereof. As shown in FIG. 2, a pilot hole 26 for tapping screw 13 is formed at the end of side surface portion 25 to fix standing surface portion 11 on the back side of support column 1 with tapping screw 13. ing. In addition, this side part 25 comprises the 4th plane part as a component of the coupling | bonding structure of the flame | frame which concerns on this invention.

  As shown in FIGS. 1 to 8, the vertical frame 3 is made of an extrusion mold member made of aluminum or an aluminum alloy having an L-shaped cross section. The upper surface portion 31 of the vertical frame 3 is formed in a belt-like flat surface portion, and is joined to the horizontal frame 2 in a state where the end portion is superimposed on the upper surface portion 21 of the horizontal frame 2. Further, the side surface portion 32 of the vertical frame 3 is formed in a belt-like flat surface portion, and the end portion thereof is coupled to the horizontal frame 2 in a state of covering the end surface 2a of the horizontal frame 2 where the cross section of the deep groove 22 is exposed. .

  For this purpose, a notch 31 a for avoiding interference with the rising wall portion 24 is provided at the end of the upper surface portion 31 of the vertical frame 3, and a tapping screw 33 for screwing with the tapping screw 33 is provided. A through hole 34 is formed through which is inserted. The tapping screw 33 is inserted into the screw threaded portion 22a of the deep groove 22 through the through hole 34 in a direction perpendicular to the upper surface portions 21 and 31, and is screwed. Further, a through hole 35 through which the tapping screw 14 is inserted is formed at the end portion of the side surface portion 32 of the vertical frame 3 to be screwed to the end portion of the horizontal frame 2 by the tapping screw 14. The tapping screw 14 is inserted into the through hole 35 in a direction perpendicular to the end surface 2a where the cross section of the deep groove 22 is exposed, and is screwed to the screw threaded portion 22a of the deep groove 22. Further, the side surface portion 32 of the vertical frame 3 is fastened together with the vertical surface portion 11 on the back side of the support column 1 in this embodiment. In addition, the upper surface part 31 and the side part 32 in the vertical frame 3 comprise the 2nd plane part and the 3rd plane part as a component of the coupling | bonding structure of the flame | frame which concerns on this invention.

  The base frame 5 is for mounting an air conditioner, and as shown in FIG. 1, two base frames 5 are arranged in parallel at a predetermined interval between the front and rear horizontal frames 2. As described above, the pair of base frames 5 is formed with the boss portion 51 through which the tapping screw 23 formed on the lower surface is inserted, and the boss portion 51 is slidably fitted into the screw guide portion 22 b of the deep groove 22. . When the base frame 5 is slid in the left-right direction, the end of the base frame 5 is guided by the rising wall portion 24 of the horizontal frame 2. The base frame 5 is positioned according to the size of the air conditioner to be mounted, and then screwed from above with the tapping screw 23 to the screw threaded portion 22a of the deep groove 22.

In the air conditioner stand configured as described above, the horizontal member 4 including the horizontal frame 2 and the vertical frame 3 is assembled as follows.
First, the material extruded into a predetermined shape is cut into a predetermined length, and the through-frames 34, 35, the lower hole 26, the notch 31a, etc. for screwing with a predetermined tapping screw are processed. Prepare frame 3. Then, as shown in FIG. 2, the upper surface portion 31 of the vertical frame 3 is superimposed on the upper surface of the upper surface portion 21 of the horizontal frame 2, and the vertical frame 3 is opposed to the end surface 2a where the cross section of the deep groove 22 of the horizontal frame 2 is exposed as it is. The horizontal frame 2 and the vertical frame 3 are arranged so as to be in a combined state in which the side surface portions 32 are overlapped. When arranged in this way, the through-hole 34 of the upper surface portion 31 of the vertical frame 3 is generally positioned above the deep groove 22, and the through-hole 35 of the side surface portion 32 substantially coincides with the end surface of the screw threaded portion 22a. In this state, the tapping screw 33 is screwed into the screw threaded portion 22a through the through hole 34 from a direction perpendicular to the upper surface portions 21 and 31. Further, the tapping screw 14 is screwed into the screw threaded portion 22a through the through hole 35 from the direction perpendicular to the end surface 2a of the lateral frame 2 where the deep groove 22 is exposed. Thereby, the horizontal frame 2 and the vertical frame 3 can be joined orthogonally at the ends. Moreover, the horizontal member 4 which consists of the horizontal frame 2 and the vertical frame 3 can be assembled | attached by performing this operation | work with respect to four corners. In this embodiment, in order to attach the support column 1 to the horizontal member 4, the vertical surface portion 12 of the support column 1 is fastened together with the side surface portion 32 of the vertical frame 3 by the tapping screw 14. The screwing of the tapping screw 14 is preferably performed simultaneously with the attachment of the column 1.

  Therefore, the work of assembling the support column 1 to the horizontal member 4 is performed on a temporarily fixed horizontal member in which the tapping screw 33 is screwed and the tapping screw 14 is not screwed. First, the horizontal frame 2 and the vertical frame constituting the horizontal member 4 so that the upper portions of the upright portions 11 and 12 of the support column 1 forming an L-shaped cross-sectional shape are in contact with the outside of the coupling portion of the horizontal member 4. 3 are arranged orthogonally to 3. At this time, the rear elevation surface portion 11 is overlapped on the outer side of the side surface portion 25 of the horizontal frame 2. Further, the side surface elevation 12 is placed on the outside of the side surface 32 of the vertical frame 3 so as to face the end surface 2 a of the horizontal frame 2 via the side surface 32. Then, the tapping screw 13 is inserted through the through hole 15 of the vertical surface portion 11 and screwed to the lower hole 26 of the side surface portion 25 of the horizontal frame 2. Further, the tapping screw 14 is inserted through the through hole 16 of the vertical surface portion 12 and the through hole 35 of the side surface portion 32 of the vertical frame 3, and the screw threaded portion of the deep groove 22 from the direction perpendicular to the end surface 2 a of the horizontal frame 2. Screw onto 22a. Thereby, the support | pillar 1 is couple | bonded with the coupling | bond part of the horizontal member 4 orthogonally.

  In addition, when connecting the above-mentioned support columns 1, by selecting the positions in the longitudinal direction of the through holes 15 and 16 through which the tapping screws 13 and 14 are inserted, the positions in the longitudinal direction of the support columns 1 fixed to the horizontal member 4 are appropriately set. You can choose.

According to the frame coupling structure configured as described above, the following effects can be obtained.
(1) According to the frame coupling structure according to the present embodiment, the horizontal frame 2 as the first frame and the vertical frame 3 as the second frame are simply used without using a joint member as in the prior art. They can be joined simply by screwing. Further, since the screwing hole necessary for screwing is also used as the screw screwing part 22a of the deep groove 22 used for other purposes, the hole machining work is reduced.

  (2) Since the deep groove 22 is formed with the screw guide portion 22b having a groove width larger than the groove width of the screw screw portion 22a on the opening side, the tapping screw 33 for connecting the vertical frame 3 is used as the screw guide portion. The screw 22b is easily screwed into the screw screw 22a. As a result, the assembly work of the horizontal member 4 is made efficient.

  (3) The horizontal frame 2 as the first frame and the vertical frame 3 as the second frame are made of an extruded mold member made of aluminum or aluminum alloy extruded in the longitudinal direction. The deep groove 22 as an element can be easily formed by extrusion. Moreover, since the horizontal frame 2 and the vertical frame 3 are made of an extrusion mold material made of aluminum or an aluminum-based alloy, the appearance can be improved, and the horizontal member 4 is reduced in weight, so that it can be transported and assembled. Workability is improved.

  (4) The connecting portion of the horizontal member 4, that is, the L-shaped connecting portion of the horizontal frame 2 as the first frame and the vertical frame 3 as the second frame, two of the columns 1 as the third frame Elevated surface portions 11 and 12 which are flat portions are arranged so as to overlap from the outside. Therefore, the upright portions 11 and 12 can be screwed to the joint portion of the horizontal member 4 from the outside with a screw such as a tapping screw without using a joint member. Moreover, the position of the longitudinal direction of the support | pillar fixed to a horizontal member can be easily changed by shifting and fixing to the direction orthogonal to the coupling | bond part of a horizontal member slidably.

  (5) Further, the vertical surface as the third frame is fixed by the tapping screw 14 when the vertical surface portion of the support column 1 as the third frame, in particular, the vertical surface portion 12 of the side surface is fixed to the coupling portion of the horizontal member 4. Together with the side surface portion 32 of the frame 3, it is fastened to the screw threaded portion 22a of the horizontal frame 2 as the first frame, so that the frame coupling structure is simplified.

Moreover, according to the air-conditioning stand comprised as mentioned above, there can exist the following effects.
(6) Since the horizontal member 4 having the horizontal frame 2 and the vertical frame 3 as the constituent elements is formed without the joint member as described above, the cost can be reduced.

  (7) When attaching the support column 1 to the horizontal member 4, the upright portions 11 and 12 constituting the support column 1 are coupled so as to overlap the outer surface of the coupling portion of the horizontal member 4. Without being screwed together, the cost can be reduced. Moreover, the horizontal member 4 is attached to the appropriate height position of the support | pillar 1 by selecting suitably the position of the elongate part 11 and 12 of the support | pillar 1 overlaid on the outer surface of the coupling | bond part of the horizontal member 4 in the length direction. be able to.

  (8) Moreover, since the deep groove 22 is formed in the longitudinal direction in the horizontal frame 2, the base frame 5 can be attached to the deep groove 22 while selecting an attachment position according to the size of the air conditioner. Further, since the base frame 5 is attached in this manner, the position of the base frame 5 in the left-right direction can be easily adjusted.

  (9) Further, since the horizontal frame 2 is formed so that the deep groove 22 opens in the upper surface portion 21, the base frame 5 can be tapped and screwed to the screw threaded portion 22a from above, and the air conditioner is attached. Workability is further improved.

  The above-described combined structure of the air conditioner stand and the frame according to the present embodiment is an example, and can be appropriately changed within the scope of the present invention. For example, it can be modified as follows.

  In the above embodiment, one tapping screw 14 is screwed to the screw threaded portion 22a of the deep groove 22 from the direction perpendicular to the end surface 2a of the horizontal frame 2, but a plurality of ( For example, the tapping screws 14 may be used for screwing. In this case, through holes 16 and 35 through which the tapping screw 14 is inserted are formed in the upright surface portion 12 of the support column 1 and the side surface portion 32 of the vertical frame 3 as many as the tapping screws 14 used for screwing. If comprised in this way, the horizontal frame 2 and the vertical frame 3 can be combined more firmly.

  In the above-described modification, a plurality of tapping screws 14 are used for screwing, but the standing surface portion 11 of the column 1 and the side surface portion 32 of the vertical frame 3 are fastened together by some tapping screws 14, You may make it screw with the tapping screw 14 only through the through-hole 35 of the side part 32 of the vertical frame 3. FIG. In this case, the tapping screw 14 screwed through only the through hole 35 of the side surface 32 passes through the upright surface portion 12 of the support column 1 which is stacked and assembled on the side surface portion 32 so as to escape. Make a hole. If comprised in this way, since the assembly | attachment of the horizontal member 4 will become reliable, it will become easy to attach the support | pillar 1.

  In the above embodiment, one tapping screw 33 is screwed to the screw threaded portion 22 a of the deep groove 22 from the direction perpendicular to the upper surface portion 21 of the horizontal frame 2. Screwing may be performed using tapping screws 33 (for example, two). In this case, through holes 34 through which the tapping screws 33 are inserted are formed in the upper surface portion 31 of the vertical frame 3 by the same number as the tapping screws 33 used for screwing. If comprised in this way, the horizontal frame 2 and the vertical frame 3 can be combined more firmly.

  In the embodiment described above, a single tapping screw 13 is used to fix the upright portion 11 of the support column 1, but a plurality (for example, two) are used in the height direction or the horizontal direction. The tapping screw 13) may be screwed. In this case, the same number of through holes 15 and lower holes 26 as the tapping screws 13 used for screwing are formed in the upright surface portion 11 of the support column 1 and the side surface portion 25 of the horizontal frame 2. If comprised in this way, the support | pillar 1 and the horizontal frame 2 can be combined more firmly.

In the above embodiment, the screw may be fixed using a normal screw without using the tapping screw 13.
In the above-described embodiment, the screw guide portion 22b may be configured to simply insert the tips of the tapping screws 23 and 33.

  In the above embodiment, the rising wall portion 24 is formed along the longitudinal direction at the outer edge portion of the upper surface portion 21 of the horizontal frame 2, but the upper surface is formed without forming the rising wall portion 24. The horizontal frame 2 may form an L-shaped cross-sectional shape by the portion 21 and the side surface portion 25.

It is a perspective view of the air-conditioning stand based on embodiment of this invention. FIG. 4 is a diagram of a connecting procedure of a frame connecting portion on the left front side in the air conditioner mounting table, and is a connecting procedure diagram of a horizontal frame and a vertical frame constituting a horizontal member. It is the connection procedure figure of the same frame coupling | bond part, Comprising: It is the coupling procedure figure of the support | pillar with respect to the coupling | bond part of the assembled horizontal member. FIG. 4 is a diagram illustrating a connection procedure of the frame connecting portion, and is a state diagram after a support column is assembled to a connecting portion of a horizontal member. It is a top view of the frame coupling | bond part. It is AA sectional drawing in FIG. It is a front view of the frame coupling | bond part. It is BB sectional drawing in FIG. It is a sectional side view of the connection part of the horizontal frame and base frame in the same air-conditioning stand. It is a perspective view of the air-conditioning stand based on a prior art example. It is a disassembled perspective view of the frame coupling | bond part of the left back side in the same air-conditioning stand. It is a plane sectional view of the frame coupling part.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Column (as 3rd frame), 2 ... Horizontal frame (as 1st frame), 2a ... End face, 3 ... Vertical frame (as 2nd frame), 5 ... Base frame, 14, 33 ... Tapping screw , 21 ... upper surface part (as the first plane part), 22 ... deep groove, 22a ... screw screwing part, 22b ... screw guide part, 25 ... side part (as the fourth plane part), 31 ... (second plane) Upper surface part (as part), 32 ... side part (as third plane part).

Claims (9)

A frame connecting structure for connecting the ends of the first frame and the second frame in an L shape,
The first frame includes at least one strip-shaped first plane portion extending in the longitudinal direction, and a deep groove extending in the longitudinal direction is formed in the first plane portion.
The deep groove is formed such that a screw threading portion having a groove width that allows the tapping screw to be screwed to the bottom side is formed, and a cross section thereof is exposed on the end face of the first frame,
The second frame has a second plane portion that is overlaid on the first plane portion, and a third plane portion that covers an end surface of the first frame where a cross section of the deep groove is exposed,
The second flat surface portion is screwed to the screw threaded portion by a tapping screw inserted in a direction perpendicular to the first flat surface portion, and the third flat surface portion has a deep groove cross-section exposed to the screw threaded portion. A frame coupling structure characterized by being screwed by a tapping screw inserted in a direction perpendicular to the end face.   2. The frame coupling structure according to claim 1, wherein a screw guide portion having a groove width larger than the groove width of the screw screw portion is formed on the deep groove.   The frame connecting structure according to claim 1 or 2, wherein the first frame and the second frame are made of an extruded mold member made of aluminum or an aluminum alloy extruded in the longitudinal direction. The first frame has a belt-like fourth plane part orthogonal to the first plane part at the side in the longitudinal direction, and the first frame and the second frame are the third plane part and the fourth plane part. Are coupled to form an L-shaped outer surface of the coupling portion,
Further, a frame coupling structure in which the end of the third frame is coupled orthogonally to the coupling portion of the first frame and the second frame coupled in this way,
The third frame includes two plane portions that are fixed to each of the third plane portion and the fourth plane portion by overlapping from the L-shaped outside of the coupling portion. 4. The frame connection structure according to any one of 3 above.   The flat portion of the third frame is screwed together with the third flat portion by a tapping screw in a direction perpendicular to an end surface at which the cross section of the deep groove is exposed with respect to the screw threaded portion. 4. The frame connecting structure according to 4. An air conditioner mounting table in which a pair of front and rear horizontal frames and a pair of left and right vertical frames are attached to support columns erected at four corners,
4. An air conditioner mounting table according to claim 1, wherein a horizontal frame and a vertical frame are constituted by the first frame and the second frame, respectively, and are coupled by the frame coupling structure according to any one of claims 1 to 3. An air conditioner mounting table in which a pair of front and rear horizontal frames and a pair of left and right vertical frames are attached to support columns erected at four corners,
6. An air conditioner characterized in that a horizontal frame, a vertical frame, and a support column are constituted by the first frame, the second frame, and the third frame, respectively, and are coupled by the frame coupling structure according to claim 4 or 5. Stand.   A pair of left and right base frames for mounting an air conditioner is installed between the pair of front and rear horizontal frames, and the base frame is selectively screwed and fixed to an appropriate position by a tapping screw to the screw threaded portion. The air conditioner mounting stand according to claim 6 or 7, wherein   The horizontal frame is formed so that the deep groove opens in a flat portion forming an upper surface, and the base frame is configured to be screwed from above with a tapping screw with respect to a screw threaded portion. The air conditioner stand according to claim 8.

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