JPH03187439A - Tenoning structure - Google Patents

Abstract

PURPOSE:To secure the junction by connecting straight wall parts, which widen corresponding interval as they go up, to an R-shaped wall facing to the under face so as to form a male tenon, and further providing a female tenon in the shape of tailing in the male tenon. CONSTITUTION:A tailing projection 14, consisting of an R-shaped wall part 14a and straight wall parts 14a and 14b which widen the corresponding interval as they go up, is provided at a seat base 13 projected on the reference plane 12 at the end of one member 11 so as to form a male tenon A. Moreover, a tailing hole 24, consisting of an R-shaped wall part 24a and straight wall parts 24a and 24c which widen the corresponding interval as they go up, is provided in the seat receiving hole 23 cut in the reference plane 22 of the other member 21 so as to form a female tenon B. And the male tenon A is led down from above to the female tenon B, whereby it is tailed, and both members 11 and 21 are junctioned.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a pattern structure of a wooden joint used in the field of wooden construction.

(Prior Art) In recent years, pattern processing in wooden buildings has been mechanized in order to compensate for the shortage of skilled workers or to improve work efficiency and processing accuracy.

Examples of machine-processed patterns that follow the merits of the traditional pattern structure include the koshikakama pattern shown in Figure 4 and the large-sized pattern shown in Figure 5. It is used depending on the purpose, such as pulling or connecting the trunk and joists.

These handle assembly structures (male ■ and female ■ fitting) are specified by the characteristics of the processing machine, and the lower half has arc-shaped walls a and a', and the upper part connected to this is Both sides have vertical walls S, b' and c, c'.The tightness of the fit between the male and female handles depends on the dimensions of each vertical wall, that is, the width, as shown in Figure 5. It is managed by the directional gap t.

(Problem to be Solved by the Invention) By the way, the above-mentioned member whose handle has been cut is transported from the processing factory where the processing machine is installed to the construction site and is actually used there. It is normal to wait for a considerable amount of time.

As time passes, the handle part warps and becomes distorted, but the degree of this changes depending on the length of time, the moisture content of the parts, the material, etc., making it extremely difficult to manage the degree of fit. .

In particular, in the case of the above-mentioned vertical wall where the length l is large and the width W is narrow, the amount of deformation becomes large and dimensional control is difficult.In particular, when the clearance dimension is large, it may lead to defects due to backlash. The handles must be ground together, making on-site work extremely time-consuming.

The present invention has been made by focusing on the problems of the prior art described above, and has a design that allows accurate fitting and firmness even when warping or distortion occurs, and enables suitable on-site work. It attempts to provide a set structure.

(Means for Solving the Problems) In order to achieve the above object, the pattern structure according to the present invention is as follows.

That is, the gist of the present invention is to form a handle on the negative member and a female handle on the other member, and
In a wood joint in which both parts are joined by fitting a stopper, the above male handle is connected to the rounded wall facing the bottom surface, and the corresponding interval on both sides increases as it extends upward. The above-mentioned female ■ has a curved wall section facing the upper surface corresponding to the male handle, and a curved wall section on both sides that connects to this curved wall section and widens the corresponding distance as it extends upward. The present invention is constructed by a linear wall portion, and at least the linear wall portions on the male storage side and the secondary storage side are joined to each other.

(Function) Both sides of the fitting part of the handle and the male handle that fit there are tapered, that is, the fitting part becomes gradually wider on the female oil side, and the fitting part on the male storage side is tapered. Since the fitting portion is tapered, initial fitting can be easily performed.Also, even if there is some warpage or distortion, the two can be accurately and firmly joined by a wedge action.

(Example) Hereinafter, one example of the pattern structure according to the present invention will be specifically described.

In Fig. 1, 11 is a member that is seated at one end in the longitudinal direction (forming A) and 21 in Fig. 2.
12 is a reference plane provided at the end of the member; 13 is a seat protruding from the reference plane 12;
Reference numeral 14 denotes a dovetail-shaped fitting protrusion in plan view that is continuous with the seat 13 and provided at its tip.

In the above-mentioned fitting protrusion 14, 14a is a rounded wall portion with a circumferential surface facing the lower surface side, and this rounded wall portion r
4a41 forms the lower half of the fitting protrusion 14.

14b and 14c are linear wall portions provided continuously to the rounded wall portion 14a, and these linear wall portions 14b and 14c form the upper half of the fitting protrusion 14.

Further, the straight wall portions 14b and 14c are the rounded wall portion 1.
It is formed so that the corresponding interval increases as it extends upward from the lower end connected to 4a, and has a tapered shape (indicated by angle α) in front view as shown in FIG.

In addition, the above-mentioned rounded wall portion and linear wall portion are connected to the seat portion 1.
3 (indicated by symbols 13a, 13b, and 13c)
Form.

Next, in the dovetail handle B, 22 is a reference plane cut into the side surface of the member, 23 is a seat receiving hole, and 24 is a fitting hole provided on the inside continuous to the seat receiving 23. The above seat receiving 23 is attached to the seat base 13. , the fitting holes 24 correspond to the fitting protrusions 24, respectively.

In the above-mentioned fitting hole 24, 24a is a rounded wall portion with the circumferential surface facing the upper surface side, and 24b and 24c are linear wall portions provided continuously to the above-mentioned rounded wall portion 24a, when viewed from the front. It has a tapered shape. This tapered shape is the same as that of the linear wall portions 14b and 14C of the fitting protrusion 14.

In addition, the above-mentioned rounded wall portion and straight wall portion are connected to the seat receiving portion 23.
Similarly, (numerals 23a, 23b, 23c) are also formed.

Since the handle assembly structure according to one embodiment is as described above, in order to join one member 11 to the other member 21, the dovetail handle A is dropped from above against the dovetail handle B. mating. In this case, the width of the lower end of the fitting protrusion 14 of the male handle A, that is, the rounded wall portion 14a, is sufficiently small with respect to the upper end of the opening of the fitting hole 24 of the female handle B, that is, the entrance of the tapered part, and there is a gap. The fitting operation is easy.

Further, as the above-mentioned rounded wall portion gradually lowers and the degree of fitting increases, the following portion, that is, the straight wall portion 1
6 where 4b and 14c are joined to the straight wall portions 24b and 24c of the female handle B, both of which have a tapered shape,
The above-mentioned gap is eliminated and the fit becomes tighter. In actual work, one member 11 is press-fitted with an impact tool such as a hammer, and the above-mentioned degree of fitting is set. Furthermore, the above-mentioned relationship between the fitting protrusion 14 and the fitting hole 24 also applies to the relationship between the seat part 13 and the seat receiving part 23, and appropriate fitting is performed in this part as well.

In one embodiment, the rounded wall portion is formed by a simple circular arc (semicircle), but it goes without saying that it may be formed by two circular arcs, an ellipse, etc. including a straight portion in the center. Further, in one embodiment, an example was given in which the present invention was applied to a handle with a seat, but it can also be applied to other well-known handle joints.

(Effects of the Invention) As described above, in the handle assembly structure of the present invention, since the lower handle and the lower handle are fitted using the tapered surfaces, reliable joining of both members can be expected. In addition, since it is possible to create a gap in the width direction between re-drawings at the beginning of fitting, fitting is possible even if the handle part is slightly warped or distorted, and it has the effect of obtaining an appropriate fit without play. Demonstrate.

[Brief explanation of drawings]

The drawings show an embodiment of the handle assembly structure according to the present invention, and FIG. 1 is a perspective view showing the structure of the male handle. FIG. 2 is a perspective view showing the structure of the male handle. FIGS. 4 and 5 are perspective views showing the conventional handle assembly configuration. FIG. 6 is an explanatory view showing the same conventional handle fitting state. A: Male handle B: Female handle 11D One member 21: Other member 12.22: Reference plane 13: Stool part 14
: Fitting protrusion 13a, 14a: Rounded wall part 13b,
13c, 14b, 14c: Straight wall portion 23: Seat receiving portion 24: Fitting hole 23a, 24a: Rounded wall portion 23b, 23c, 24b, 24c: Straight wall portion

Claims (1)

[Claims] In a wood joint in which a male ■ is formed on one member and a female ■ is formed on the other member, and the male ■ and female ■ are fitted together to join both members, It consists of a rounded wall part connected to this rounded wall part, and linear walls on both sides that widen the corresponding distance as they extend upward, and the above female ■ is placed on the top surface so as to correspond to the above male ■. Consisting of opposing rounded walls and linear walls on both sides that connect to the rounded walls and widen the corresponding distance as they extend upward, the linear walls on at least the male ■ side and the female ■ side are connected to each other. ■Gumi structure designed to join.