JPH0545693Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention relates to a joint structure for a crosspiece joint for civil engineering and construction.

Here, the civil engineering and construction crosspiece joints refer to at least one
A crosspiece assembly in which one crosspiece of a book is joined at a right angle or diagonally to at least one other crossbench, and is attached to the inside or outside of a building, or is attached to a building site, park, playground, or factory. This refers to things that are installed around sites such as roads, rivers, etc., or along roads, rivers, etc.

These crosspiece joints for civil engineering and construction include handrails such as window handrails, stair handrails, balcony handrails, and bridge handrails; lattices such as window lattices, lattice doors, and partition lattices; and pastures, farms, flower beds, lawns, roads, etc. This includes partitions or protective fences for rivers, ponds, lakes, etc., and fences such as building exterior walls and fences.

[Prior Art] In the conventional joint structure disclosed in Japanese Utility Model Application Publication No. 60-99606, a connecting plate portion is provided at the end face of one of the crosspieces, and a plate portion is cut and raised from the tip side of the connecting plate portion. is provided at an angle, and a slot into which the connecting plate part is inserted is provided in the joint plate part of the other crosspiece made of hollow material, and the connecting plate part is made by cutting and raising the edge surface of the slot to elastically deform the plate part. is inserted into the slot, and the tip surface of the cut and raised plate part, which is elastically restored within the hollow part of the other crosspiece, is brought into contact with the back surface of the joint plate part.

[Problems to be solved by the invention] Compared to conventional joint structures that are assembled using screws or rivets, this joining structure, which can be assembled by just the mating operation, does not require separate fixing tools such as screws, making the work easier. Although it is excellent in simplicity, depending on the material used for the crosspiece forming the connecting plate part, the elastic recovery of the cut and raised plate part after passing through the slot may be incomplete.

In order to incline each cut-and-raised plate sufficiently so that the tip of the cut-and-raised plate properly contacts the connecting plate, press the cut-and-raised plate from the side and press the connecting plate. However, since the other crosspiece with the slotted hole is made of hollow material and the back side of the crosspiece is completely closed, the cut and raised plate parts are not visible except near the left and right ends of the crosspiece. There is no space available for pressurized operation.
Therefore, it is necessary to separately devise a pressurizing operation jig that is inserted from the left and right ends of the only open crosspiece, which may conversely complicate the assembly work.

Therefore, the purpose of the present invention is to easily and accurately restore the slope of a cut-and-raised plate portion whose elastic restoration is incomplete through plastic deformation from a wide opening for pressurizing operation, thereby increasing the joint strength of the assembly work. It is an object of the present invention to provide a joining structure for civil engineering crosspiece joints that can be proceeded efficiently.

[Means for Solving the Problems] The joining structure of the civil engineering crosspiece joint of the present invention will be explained below using the reference numerals in the attached drawings. A joining notch 3 is provided in the side plate 9 of the crosspiece 1, a connecting plate 4 is provided protrudingly on the inner bottom surface 3a of the notch 3, and the connecting plate 4 is cut and raised from the tip side so that the plate 5 is inclined. and the other crosspiece 2 is provided with a joint plate portion 7 that the notch portion 3 abuts,
When the connecting plate part 4 is inserted, a groove hole 8 is provided in the joint plate part 7, the edge surface of which slides into sliding contact with the inclined side surface of the cut and raised plate part 5 to elastically deform the cut and raised plate part 5 in the burying direction, An opening part 15 for pressurizing operation is formed in the part of the crosspiece 2 facing the joint plate part 7 to restore the slope of the cut-and-raised plate part 5, which is incompletely elastically restored after passing through the slot, by plastic deformation. 2 joint plate portions 7 are held between the end surface portion 3 of the crosspiece 1 and the tip surface 6 of the cut and raised plate portion 5.

[Example] The crosspiece joint for civil engineering of the example shown in FIGS. 1 to 5 is a window lattice fixed to the wall of a building. One of the vertical bars 1 is composed of a channel-shaped material in which left and right side plates 9, 9 are connected by a front plate 10, and a connecting notch 3 is formed in a rectangular shape in the rear half of each side plate 9. The connecting plate portion 4 is formed at the center thereof. The other crosspiece 2 serving as the lower crosspiece is constituted by a channel-shaped member in which a joint plate portion 7 disposed on the front side is connected by an upper surface plate portion 12 and a lower surface plate portion 13.

The upper plate portion 12 and the lower plate portion 13 of the crosspiece 2 are provided with reinforcing band-like ribs 14, 14 protruding inward from the rear ends thereof.
The pair of left and right slots 8, 8 are formed in the center of the joining plate portion 7 so as to be elongated vertically.

As shown in FIG. Since the edge surface of the cut-and-raised plate portion 5 comes into sliding contact with the inclined side surface,
The cut and raised plate portion 5 is elastically deformed in the direction of being buried within the connecting plate portion 4. The entire cut and raised plate portion 5 has a slot 8
The moment the cut and raised plate part 5 passes through, it is elastically restored and projects in an inclined state toward the back surface 16 side of the joint plate part 7.

If the elastic recovery of the cut-and-raised plate portion 5 is incomplete, an appropriate tool or jig may be inserted through the pressurizing operation opening 15 that is widely formed over the entire length on the back side of the crosspiece 2. As a result, a pressurizing operation can be carried out to restore the cut and raised plate portion 5 to its inclined state with good working efficiency.

In this way, the crosspiece 2 fits into the notch 3 of the crosspiece 1, the connecting plate part 4 fits into the slot 8, and each side plate part 9 of the crosspiece 1
The upper and lower cutout end surfaces 24 of the crosspiece 2 come into contact with the upper surface of the upper surface plate portion 12 and the lower surface of the lower surface plate portion 13, and the tip surface 6 of the cut-and-raised plate portion 5 restored to the inclined state is brought into contact with the joint plate portion 7.
Since the inner bottom surface 3a of the cutout portion 3 abuts the front surface 17 of the joint plate portion 7, the crosspiece 1 is in contact with the rear surface 16 of the crosspiece 2.
The crosspieces 1 and 2 are firmly joined and connected in a state where they intersect at right angles, and are prevented from moving in any of the front and rear, left and right, and up and down directions.

The direction in which the cut and raised plate portion 5 projects obliquely is the third direction.
As shown in the figure, it may be on the outside of the left and right side plate portions 9, 9 of the crosspiece 1, or on the inside as shown in FIG. 4, and it is also possible to use both the inside and outside projections. As shown in FIG. 5, a window lattice assembled with two upper and lower crosspieces 2 and a plurality of crosspieces 1 is fitted with an appropriate mounting bracket 19 or the like connected to the left and right ends of each crosspiece 2 with fixing screws 18. It is fixed to the wall of the building by a member. In the embodiment shown in FIGS. 6 to 8, the crosspiece 1 is made of a square pipe material in which left and right side plates 9, 9 are connected by a front plate part 10 and a back plate part 11, and the connecting notch 3 are the left and right side plates 9, 9 and the back plate 11.
It is formed by cutting out each part of.

Top plate part 1 of crosspiece 2 made of channel shaped material
2 and the lower plate part 13 have a cut end surface 2 of the side plate part 9.
4 as well as the cut end surface 23 of the back plate portion 11, high bonding strength can be obtained. In this embodiment as well, as shown in FIGS. 7 and 8, the inclined protrusion direction of the cut and raised plate portion 5 may be either inside or outside, and a mixed form thereof is also possible.

In the embodiment shown in FIG. 9, the crosspiece 1 is composed of an H-shaped member in which left and right side plate parts 9, 9 are connected by an intermediate plate part 21, and the crosspiece 2 has an upper plate part 12 and a lower plate part 13 connected to each other by a connecting plate. Consisting of channel sections connected at section 7,
The crosspiece 1 and the crosspiece 2 are joined so that the intermediate plate part 21 is parallel to the joining plate part 7.

In the embodiment shown in FIGS. 10 and 11, the crosspiece 1 is composed of a channel-shaped member in which left and right side plates 9, 9 are connected by a front plate 10, and each left and right end of the front plate 10 is reinforced. A band-shaped rib 20 for use is provided protrudingly. The crosspiece 2 is composed of a C-shaped member in which the upper surface plate portion 12, the joint plate portion 7, and the lower surface plate portion 13 are curved in series, and correspondingly, the joint notch 3 of the crosspiece 1 is formed in an arc shape. ing.

In the embodiment shown in FIG. 12 and FIG.
is a curved front plate part 10 and left and right side plate parts 9, 9.
The crosspiece 2 is composed of a channel-shaped member in which an upper plate part 12 and a lower plate part 13 are connected by a joint plate part 7. Reinforcing strip-shaped ribs 22 are provided in parallel at each of the upper and lower ends of the joint plate portion 7 in a protruding manner. In the embodiment shown in FIG. 14, the crosspiece 1 is made of a round pipe material, and the pair of left and right connecting plate portions 4, 4 are extended straight.

This invention can be implemented in various forms,
The forming portions and cross-sectional shapes of the joining cut-out portion 3 and the connecting plate portion 4 of the crosspiece 1 are not limited to those shown in the drawings, and the forming positions and numbers of the connecting plate portion 4 and the cut-and-raised plate portions 5 are not particularly limited either. The number can be increased or decreased as appropriate depending on the use of the civil engineering crosspiece joint. I can do that. Various combination changes are possible, such as a combination of a rectangular cross section and a rectangular cross section, a combination of a rectangular cross section and a circular or arcuate cross section, a combination of a circular cross section and a circular arc cross section, etc. The crosspieces 1 and 2 are typically made of aluminum, but other metal materials can also be used, and they are applicable not only to handrails such as the balcony handrails shown, but also to the above-mentioned lattices and fences. It is possible.

[Effect of the invention] As described above, the joining structure of the civil engineering crosspiece joint of the present invention has the joining notch 3 in the side plate part 9 of one crosspiece 1.
A connecting plate portion 4 is provided and protrudes from the inner bottom surface 3a of the cutout portion.
The cut and raised plate portion 5 is provided at an angle from the tip side,
The other crosspiece 2 is provided with a connecting plate portion 7 that the notch 3 contacts, and a slot 8 into which the connecting plate portion 4 is inserted is inserted into the connecting plate portion 7.
Since the pressurizing operation opening part 15, which can easily access the cut-and-raised plate part 5 protruding from the slot 8, is formed in the part of the crosspiece 2 facing the joint plate part 7, the slot 8
Even if there is a cut-and-raised plate portion 5 whose elastic recovery is incomplete after passing, the cut-and-raised plate portion 5 is tilted by plastic deformation by applying pressure immediately from the pressure operation opening 15. By restoring all the cut and raised plate parts 5
can be set to a necessary and sufficient inclined protruding state, and the crosspiece 1 and the crosspiece 2 can be assembled with high work efficiency and high joint strength.

[Brief explanation of the drawing]

1 to 5 show the joining structure of a crosspiece joint for civil engineering and construction according to an embodiment of the present invention, and FIG.
It is a perspective view when two crosspieces are in an unjoined state,
FIG. 2 is a perspective view of the joined state, FIG. 3 is a horizontal cross-sectional view of the joined state, FIG. 4 is a horizontal cross-sectional view of another joined state, and FIG. 5 is a cross-piece joint with completed assembly. It is a front view of an object. 6 to 8 show the joining structure of a jointed crosspiece for civil engineering and construction according to another embodiment of the present invention, FIG. 6 is a perspective view when two crosspieces are in an unjoined state, and FIG. FIG. 7 is a horizontal sectional view of a bonded state, and FIG. 8 is a horizontal sectional view of another bonded state. FIG. 9 is a horizontal sectional view of a joined state of a crosspiece joint for civil engineering and construction according to yet another embodiment of the present invention. FIG. 10 is a right side view of the bonded state of the bonded structure according to another embodiment of the present invention, and FIG.
The figure is a horizontal sectional view of the bonded state. FIG. 12 is a right side view of a jointed crosspiece for civil engineering and construction according to another embodiment of the present invention, and FIG. 13 is a horizontal sectional view of the joined state. FIG. 14 is a horizontal sectional view of a joined state of a crosspiece joint for civil engineering and construction according to yet another embodiment of the present invention. DESCRIPTION OF SYMBOLS 1...One crosspiece, 2...The other crosspiece, 3...End face part, 4...Connecting plate part, 5...Cut and raised plate part, 6...
Tip surface, 7... Joint plate part, 8... Slot, 9... Side plate part, 10... Front plate part, 11... Rear plate part,
12... Front plate part, 13... Rear plate part, 14...
Reinforcing rib, 15... Opening part for pressurizing operation, 16...
...Rear side of the joint plate part, 17...Front side of the joint plate part, 18...
...Fixing screw, 19...Mounting bracket, 20...
...Reinforcing rib, 21... Intermediate plate portion, 22... Reinforcing rib, 23, 24... Cut end surface.

Claims (1)

[Claims for Utility Model Registration] (1) A joining notch 3 is provided in the side plate portion 9 of one of the two crosspieces 1 and 2 that are joined in a crossed manner,
A connecting plate portion 4 is provided protrudingly on the inner bottom surface 3a of the notch portion 3,
The connecting plate part 4 is provided with a cut-and-raised plate part 5 inclined from the tip side, and the connecting plate part 7 that the notch part 3 abuts is provided on the other crosspiece 2, so that when the connecting plate part 4 is inserted, the edge A slot 8 is provided in the joining plate part 7, the surface of which slides into sliding contact with the inclined side surface of the cut and raised plate part 5 to elastically deform the cut and raised plate part 5 in the burial direction, so that elastic recovery after passing through the groove is incomplete. An opening part 15 for pressure operation that restores the slope of the cut and raised plate part 5 by plastic deformation is formed in the part of the crosspiece 2 facing the joint plate part 7, and the joint plate part 7 of the crosspiece 2 is connected to the end surface of the crosspiece 1. A joint structure of a crosspiece joint for civil engineering and construction sandwiched between a section 3 and a tip surface 6 of a cut and raised board section 5. (2) The joint plate part 7 placed on the front is connected to the top plate part 12.
Claim 2, wherein the crosspiece 2 is constituted by a channel-shaped member connected by a lower plate part 13, and an operating opening part 15 is formed between the rear end portions of the upper plate part 12 and the lower plate part 13 over the entire length of the crosspiece 2. 1) The described joint structure. (3) The crosspiece 1 is made of square pipe material, and a portion of each of the left and right side panels 9, 9 and the back panel 11 are cut out to form the joining notch 3, and the back panel 11 is cut out. The joint structure according to claim (1), wherein the end surfaces 23, 23 are brought into contact with the upper surface plate portion 12 and the lower surface plate portion 13 of the crosspiece 2.