JP4128317B2 - Mortise joint - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a mortise-attached joint suitable for joining a plurality of members such as columns and beams that intersect each other.
[0002]
[Prior art]
Utility Model Registration No. 2574473 and Utility Model Utility Publication No. 6-37402 disclose a box-shaped tenon provided with a rear edge of two side plates and a fixing hole for inserting a fixing tool such as a bolt on the back surface. Disclosed is a mortise bracket with a tenon for construction.
This beam bracket is attached to the column to fix the column and beam. When the beam bracket is attached to the column, it is easy to engage the tenon of the beam bracket with the mortise formed in the column. Since the beam is supported by the two side plate pieces, the beam is difficult to rotate around the central axis with respect to the column.
Furthermore, the back plate for connecting the rear edge of the side plate is not provided on the back surface of the beam receiving metal fitting, and the rear edges of the two side plates are connected only by the tenon portion so that the rear edge of the side plate contacts the column. Therefore, it is not necessary to form a notch that escapes the thickness of the back plate at the end of the beam in order to completely fit the tenon to the tenon. For this reason, it is easy to process the joint end portion of the beam, and the strength of the joint portion does not decrease, and the end surface of the beam is in close contact with the side surface of the column, so that the appearance is good.
[0003]
However, since the tenon portion of the conventional beam receiving metal fitting is a box shape formed by bending and engages with the tenon hole of the box shape, the load applied to the joint portion between the column and the beam is a contact surface between the tenon portion and the mortise portion. In particular, the stress is concentrated at the corner of the tenon portion, and this portion is easily deformed. To form a box-shaped tenon, the metal plate must be cut into a shape that expands the back, sides, and connection allowance of the box, and each part must be folded with a press, which complicates the manufacturing process. , Material loss also increases.
[0004]
[Problems to be solved by the invention]
This invention has high strength and is difficult to be deformed, is easy to process and is low in cost, requires less joint processing of the other member with respect to one member to be joined, and has a good appearance at the joint. It is an object to provide a joint with a mortise.
[0005]
[Means for Solving the Problems]
The tenon-equipped connector of the present invention (hereinafter referred to as a connector) is formed by connecting the rear edges of two side plates at a tenon part. The two side plates are flat, and an insertion hole is provided at the same position. The tenon portion has a side surface and a bottom portion, and a fixing hole is provided at the bottom portion. The tenon portion is formed into a round cross section or a vertically long oval shape in a direction along the rear edge of the side plate by drawing with a press from a cut piece integral with the two side plates. The oval includes a so-called oval shape in which both ends are semicircular.
[0006]
To form the joint, the metal plate is cut into a shape in which two side plates and a portion corresponding to the tenon portion are continuously developed, and then the tenon portion is protruded to the back side by drawing and is pressed by pressing. The side plates are folded parallel to each other. The boundary between the bottom and side surfaces of the tenon is gently connected with a relatively large roundness, and the side surfaces are flush with the side plates. Alternatively, the portion corresponding to the tenon portion and the two side plates may be cut separately, and the tenon portion may be drawn and attached to the rear edge of the side plate by welding or the like.
The side plate and mortise are made of iron plate, galvanized steel plate or stainless steel plate. In the case of iron plate or galvanized steel plate, after forming, a film is formed on the surface by zinc phosphate treatment, and the surface is a resin with high corrosion resistance. Rust prevention treatment such as electrodeposition coating of paints.
A locking notch may be formed downward at the same position in the center of the upper edge of the two side plates. The insertion hole and the locking notch may be one or more on each side plate depending on the size of the connector.
When the tenon portion is formed into an oval shape, a plurality of fixing holes can be arranged vertically in the tenon portion.
[0007]
In order to connect one member and the other member with such a connector, a mortise hole is formed on the side surface of the one member, and one member is moved from a position corresponding to the fixing hole of the connector of the mortise. A hole for inserting a fixture such as a bolt is passed through the other side surface (through coupling hole is provided). In addition, two slits for receiving the side plate of the connector are formed in parallel at the end of the other member, and the first position corresponding to the insertion hole provided in the side plate and the deep end of the locking notch, First and second through transverse holes for inserting the second connecting pin are formed.
Then, the tenon portion of the connector is fitted into a tenon hole provided in one member, a bolt is inserted into the fixing hole of the tenon portion and the through-coupling hole of one member, and a nut is tightened to the end portion, A connector is attached to one member.
Next, the side plate of the connector is inserted into the slit of the other member, the end surface of the other member is brought into contact with the side surface of the one member, and the through transverse hole provided in the other member (second through transverse hole) The connecting pin (second connecting pin) is pierced through and the insertion hole in the side plate of the connector is passed through.
[0008]
In the case where the connector includes a locking notch in the side plate, the second member corresponding to the through-crossing hole (first through-crossing hole) and the insertion hole is formed on the other member at a position corresponding to the inner end of the locking notch. A through-cross hole is provided, and a connecting pin (first connecting pin) is inserted into the first through-cross hole in advance, and then the other member is attached to the side plate of the joint that is already fixed to one member. The slit is inserted, and the first connecting pin is engaged with the locking notch of the side plate. Then, the other member is in a temporarily fixed state with respect to the one member. Next, the second connecting pin is pierced from the second through-crossing hole to penetrate the insertion hole in the side plate of the connector.
As a result, the other member is accurately coupled to the one member.
[0009]
With the above configuration, the joining tool connects the two side plates at the tenon portion and does not provide the back plate, so that the thickness of the back plate escapes between the two slits on the end surface of the other member. It is not necessary to form a notch for the purpose. Further, since the tenon portion is circular or oval, it is easier to form than the box-shaped tenon portion formed by bending, and the tenon portion itself is sturdy because of the integral molding. Furthermore, since the tenon portion and the tenon hole are in contact with each other with a gently curved surface, the stress is less likely to be concentrated on a part, and the tenon portion has a high strength even in the coupled state.
[0010]
There may be a plurality of fixing holes provided in the tenon. By changing the position of the fixing hole to be used, when changing the surface to the same position of one joining member and mounting multiple joining tools, the height of the bolts for fixing each joining tool is varied, It can be prevented from interfering with each other.
In addition, if the vertical dimension of the side plate in the connector is increased and the insertion holes for the connecting pins are provided near the upper end and the lower end, respectively, one connector fixed to one member formed with a mortise A plurality of members (land beams and climbing beams, etc.) can be connected to each other.
A metal is usually used as a material for the joint, but a mechanical synthetic resin can also be used if the strength is sufficient. Injection molding or stamping can be used for molding.
The connecting pin may be a bolt.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
FIGS. 1 to 3 show a structure in which a beam B (land beam B) is coupled to a column A using a connector 1.
The connector 1 is made of a galvanized steel plate and is composed of two side plates 2 and a tenon portion 3 (FIG. 1). A coating is formed on the surface by a zinc phosphate treatment, and the surface is a resin-based paint with high corrosion resistance. Is electrodeposited.
The two side plates 2 are arranged in parallel, and two insertion holes 4 and 4 are formed in each side plate, and a locking notch 5 is formed downward from the center portion of the upper edge.
The tenon section 3 has an oval cross section which is long in the vertical direction, the front surface thereof is opened between the side plates 2 and 2, and two pairs of two at the bottom section, a total of four fixing holes 6 are arranged vertically. They are formed side by side. The tenon 3 connects the rear edges of the two side plates 2 and 2 so that the side surface of the tenon 3 and the side plate 2 are flush with each other.
[0012]
In order to form the joint 1, the galvanized steel sheet is cut into a shape in which two side plates 2, 2 and a portion corresponding to the tenon portion 3 are continuously developed, and at the same time, a portion corresponding to the side plates 2, 2. In addition, two pairs of fixing holes 6 are formed in a portion corresponding to the two insertion holes 4, one locking notch 5, and tenon portion 3. Next, a portion corresponding to the tenon portion 3 is drawn to the back side by drawing with a press to form the tenon portion 3, and the two side plates 2 and 2 are bent in parallel.
[0013]
In order to join the land beam B to the side surface of the column A, the mortise hole 7 is formed in the side surface of the column A in advance, and the other side of the column A from the position corresponding to the fixing hole 6 in the joint at the bottom of the mortise 7. A through-coupling hole 9 for inserting the bolt 8 is drilled over the side. In this embodiment, a counterbore 10 is formed around the opening at the portion where the through coupling hole 9 is opened on the other side surface of the column A (FIG. 3).
On the other hand, at the end of the land beam B, two slits 11 for receiving the side plate 2 are formed in parallel along the axial direction of the land beam B. A through transverse hole 13 for inserting the connecting pin 12 is formed through the slit 11 at a position corresponding to the back end of the notch 5 (FIG. 2).
A through transverse hole 13 provided at a position corresponding to the back end of the locking notch 5 corresponds to a first through transverse hole 13a, and a connecting pin 12 inserted through the through cross hole 13 corresponds to a first connecting pin 12a and through holes 4 and 4. The through-cross hole 13 provided at the position to be used is the second through-cross hole 13b, and the connecting pin 12 inserted through the through-cross hole 13b is the second connecting pin 12b.
[0014]
The washer 14 is applied to the counterbore 10 of the column A, and the bolt 8 is inserted into the through-coupling hole 9 from the other side of the column A. The tenon portion 3 is fitted into the tenon hole 7 of the column A to attach the connector 1, and the cylindrical nut 15 is inserted into the through-coupling hole 9 from the fixing hole 6 of the tenon portion 3 to the tip of the bolt 8. Screw together. The connector 1 can be fixed to the column A by tightening the cylindrical nut 15 (FIG. 3). Fastening with the bolts 8 and the cylindrical nut 15 is performed by using the fixing holes 6 positioned at the upper part of each pair of the two fixing holes 6 provided in the tenon portion 3. In addition, when the beams C are connected to the same position using the same connector 1 (FIG. 2), the columns A are different, but each of the two pairs of fixing holes 6 in the connector 1 Using the fixing holes 6 located at the lower part of the pair, the vertical positions of the bolts 8 for fixing the other connector 1 to the column A and the bolts 8 for fixing the connector 1 are different. Prevent interference with each other.
[0015]
Next, after the first connecting pin 12a is inserted into the first through-cross hole 13a of the land beam B, the side plate 2 of the connector 1 is inserted into the slit 11 of the land beam B, and the land beam B is formed on the side surface of the column A. Abut the end face. Then, the 1st connection pin 12a inserted in the land beam B engages with the latching notch 5 of the connector 1, and the land beam B will be temporarily fixed with respect to the pillar A, and will be stabilized. And connecting pin 12b, 12b is inserted in the 2nd penetration crossing hole 13b of the land beam B, and the insertion holes 4 and 4 provided in the side plate 2 of the connector 1, and the pillar A and the land beam B are connected via the connector 1. Join.
[0016]
4 and 5 show a second embodiment, and shows a structure in which a land beam B and a climbing beam D are coupled to a column A by using a connector 16.
The vertical dimension of the side plate 2 of the joint 16 is formed to be larger than the beam back of the land beam B, the insertion holes 4 and the locking notches 5 are provided in each side plate 2 and the upper insertion is also made on both sides of the locking notches 5. A hole 17 is formed (FIG. 4).
Further, slits 18 and 18 for receiving the side plates 2 and 2 of the connector 16 are formed at the end of the climbing beam D, and the third connecting pin 12c is inserted through the slits 18 and 18. A third through transverse hole 13c is formed (FIG. 5).
[0017]
In order to join the land beam B and the climbing beam D to the column A, first, as in the first embodiment, the joining tool 16 is fixed to the side surface of the column A, and the land beam B is coupled to the column A. At this time, the upper portions of the side plates 2 and 2 of the connector 16 protrude upward from the upper end surface of the land beam B.
Next, the upper parts of the side plates 2 and 2 of the connector 16 are inserted into the slit 18 of the climbing beam D, the end of the climbing beam D is placed on the upper surface of the end of the land beam B, and the end surface of the climbing beam D is It is brought into contact with the side surface of the column A. Then, the third connecting pin 12 c is inserted into the third through-transverse hole 13 c of the climbing beam D and the upper insertion hole 17 of the side plate 2 to couple the climbing beam D to the column A. At the same time, the land beam B and the climbing beam D are coupled via the side plates 2 and 2.
[0018]
In this embodiment, the land beam B and the climbing beam D are connected by another means using a pipe 19. That is, the pipe 19 has diametrical through holes 20 at both ends and is fitted into circular holes 21 and 21 provided in the land beam B and the climbing beam D, and is inserted from the land beam B and the climbing beam D side. The fourth connecting pin 12 d is engaged with the through hole 20 of the pipe 19.
Since the other structure of the connector 16 is substantially the same as that of the connector 1 shown in FIGS. 1 to 3, the same parts are denoted by the same reference numerals and detailed description thereof is omitted.
[0019]
【The invention's effect】
According to the configuration of the first aspect, the circular or oval tenon can be easily formed by drawing, and the manufacturing process is less and the entire tenon is integrally formed. The strength of the mortise is high. Further, since the tenon portion and the tenon hole are in contact with each other with a gently curved surface, the load is not concentrated on a part and the tenon portion is not easily deformed.
By fitting the tenon portion into the tenon hole of one member, the connector can be accurately positioned, so that the other member can be accurately coupled to one member. In addition, the side plate is connected by a tenon, the rear edge of the side plate is used as a contact portion for one member, and no back plate is provided between them, so a notch for escaping the thickness of the back plate is formed on the end surface of the other member There is no need to do. For this reason, one to-be-joined member and the other to-be-joined member closely_contact | adhere, and the appearance is good. In addition, it is possible to reduce the joint processing of the other member, and it is possible to prevent the strength of the joint from being lowered.
[0020]
According to the structure of Claim 2, when attaching a connector at the same height to several side surfaces of one member, it arrange | positions fixing tools, such as a volt | bolt which fixes each connector, in a position from which height differs. And the fixtures do not interfere with each other.
According to the configuration of the third aspect, the other member can be temporarily fixed to one member and then fixed, and the joining operation of the one member and the other member can be performed safely and Can be done accurately.
[Brief description of the drawings]
FIG. 1 is a perspective view of a tenon joint (first embodiment).
FIG. 2 is a perspective view of the coupling structure as seen through. FIG. 3 is a front view showing the coupling portion in cross section (first embodiment).
FIG. 4 is a perspective view of a mortise-attached connector (second embodiment).
FIG. 5 is a front view showing a coupling portion in cross section (second embodiment).
[Explanation of symbols]
1 Tenon joint (joint)
2 Side plate 3 Tenon part 4 Insertion hole 5 Locking notch 6 Fixing hole 7 Mortise hole 8 Bolt 9 Through joint hole 10 Counterbore 11 Slit 12 Connection pin 12a First connection pin 12b Second connection pin 12c Third connection Pin 12d Fourth connecting pin 13 Through transverse hole 13a First through transverse hole 13b Second through transverse hole 13c Third through transverse hole 14 Washer 15 Tubular nut 16 Joint 17 Upper insertion hole 18 Slit 19 Pipe 20 Through hole 21 Circular hole A Column (one member)
B Land beam (the other member)
C Other beams D Climbing beams

Claims (3)

Consists of a tenon connecting the rear edges of two side plates. Each side plate has an insertion hole at the same position. The tenon is formed into a circular or oval cross-section by drawing with a press and fixed to the bottom. A mortise-attached connector comprising a hole, the tenon side surface being flush with the side plate, and the rear edges of the two side plates serving as contact portions for a member to which the connector is to be attached.   The tenon-equipped connector according to claim 1, wherein the tenon has a plurality of fixing holes.   The mortise-attached joint device according to claim 1 or 2, wherein each side plate includes a locking notch at the same position.

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