TWM629644U - Tenon joint structure of table and chair components - Google Patents

Abstract

A mortise-joint structure for table and chair components includes a foot post, a first cross bar, a second cross bar and a screw. Two tenon holes, and the second tenon holes communicate with the first tenon holes at right angles. The screw is inserted into the second tenon hole on the second surface, and the end face of the second tenon is close to or in contact with the side surface of the first tenon, and the screw is locked inward from the fixing hole on the first surface into the first crossbar extending through the first crossbar. The tenon on both sides, and the screw continues to be locked into the second tenon end face of the second crossbar, so as to achieve a three-axis tenon reinforcement structure, which can prevent the structure from loosening and shaking, and is more reliable and durable, and improves safety.

Description

Mortise structure of table and chair components (1)

This creation is related to the technical field of table and chair structures, especially a tenon joint structure of table and chair components.

Press, wooden desks and chairs are indispensable in the classroom, allowing students to use desks and chairs in the classroom. In the current combined structure of desks and chairs, most of the legs and crossbars adopt a tenon joint structure, and the tenons of each crossbar are inserted into the corresponding tenon holes of the legs to form desks and chairs.

However, under the long-term use of the current desks and chairs, the tenon of each crossbar and the tenon hole of the foot post are only combined individually, so that the tenon of the crossbar and the tenon hole of the foot post are easily loosened from each other, thereby causing The desks and chairs are shaken or disassembled, which seriously affects the safety of use. Therefore, how to solve the above-mentioned problems is the topic that the industry-related industry is eager to study.

The main purpose of this creation is that the legs of the table and chair, the first crossbar and the second crossbar achieve a three-axis tenon joint reinforcement structure, which can prevent the structure from loosening and shaking, and is more reliable and durable, and improves safety.

In order to achieve the above purpose, the tenon joint structure of the table and chair components in this creation includes The first cross bar, the second cross bar and the screw, wherein: the foot post has a front and rear opposite first surface, a second surface and a left and right opposite first side and second side, and the first side is recessed with a first tenon hole. , the second surface is concave with a second tenon hole, and the second tenon hole is connected to the first tenon hole at right angles, and the first surface is provided with a fixing hole toward the second tenon hole; There is a first tenon, and the first tenon is inserted into the first tenon hole of the first side; the end of the second crossbar is protruded with a second tenon, and the second tenon is inserted into the second surface inside the second tenon hole, and the end face of the second tenon is close to or in contact with the side surface of the first tenon; the screw is locked inward from the fixing hole of the first surface into both sides of the first tenon passing through the first crossbar, and the screw Continue to lock into the end face of the second tenon of the second crossbar.

In the tenon joint structure of the table and chair components, the width of the first tenon is smaller than the width of the second tenon.

In the tenon joint structure of the table and chair components, the length of the first tenon is greater than the length of the second tenon.

In the tenon joint structure of the table and chair components, the first tenon is deviated from the center of the end of the first crossbar.

1: Footpost

11: The first surface

12: Second surface

13: The first side

14: Second side

15: The first tenon hole

16: The second tenon hole

17:Fixing hole

18: tenon

2: The first crossbar

21: The first tenon

22: Side

3: Second crossbar

31: Second tenon

32: End face

4: Screws

41: Screws

5: Rear legs

6: Backplane

61: Rear crossbar

62: Rear crossbar

63: Rear crossbar

64: Bearing plate

7: Seat plate

71: Side Crossbar

8: Angle iron

81: Angle iron

The first picture is a three-dimensional view of the front view of the desk and chair components formed by the mortise and tenon structure group of this creation.

The second picture is a three-dimensional view of the chair from the rear of the first picture.

The third picture is a perspective view of the left side member of the classroom chair in the first picture.

The fourth picture is a perspective view of the rear side member of the first picture.

The fifth picture is a perspective view of the right side member of the classroom chair in the first picture.

Fig. 6 is a perspective view of the front end member of Fig. 5.

Fig. 7 is an exploded perspective view of the front end member of Fig. 5 when viewed from the rear.

Fig. 8 is an exploded perspective view of the front end member of Fig. 5 as viewed from the front.

Figure 9 is a top cross-sectional view of the mortise joint structure of the front end member in Figure 5 .

Regarding the technical means and their effects used in this creation to achieve the above-mentioned purpose, feasible embodiments are hereby presented, and the descriptions are as follows in conjunction with the drawings:

First of all, please refer to the first picture to the fifth picture. It can be clearly seen from the pictures that the mortise and tenon joint structure of the table and chair components of this creation is used to form a class chair. The class chair is mainly on two opposite legs 1 and two rear legs. The first crossbar 2, the second crossbar 3, the back plate 6, the rear crossbars 61, 62, 63, the support plate 64, the seat plate 7 and the side crossbar 71 are connected between the columns 5, and the angle iron 8, 81 and screws 4 and 41 are reinforced and fixed.

Please refer to Figure 1 and Figures 5 to 8. The mortise structure of the table and chair components of this creation includes a foot post 1, a first crossbar 2, a second crossbar 3 and screws 4, wherein:

The foot post 1 has a front and rear facing first surface 11, a second surface 12 and a left and right facing first side 13, a second side 14, the first side 13 is recessed inward with a first tenon hole 15, and the second surface 12 is inward A second tenon hole 16 is recessed, and the second tenon hole 16 communicates with the first tenon hole 15 at right angles (refer to the seventh and eighth figures). The first surface 11 is provided with a fixing hole 17 toward the second tenon hole 16 (refer to the Eight and nine), and the top of the foot post 1 is provided with a tenon 18.

Both ends of the first cross bar 2 are protruded with a first tenon 21, and the first tenon 21 is offset from the center of the end of the first cross bar 2, and the first tenon 21 and the two side surfaces 22 cooperate to insert It is placed in the first tenon hole 15 of the first side surface 13 .

A second tenon 31 is protruded from both ends of the second crossbar 3 . The second tenon 31 and the end surface 32 are inserted into the second tenon hole 16 of the second surface 12 , and the second tenon 31 is inserted into the second tenon hole 16 of the second surface 12 . The end surface 32 is close to or in contact with the side surface 22 of the first tenon 21 (refer to the seventh to ninth figures), and the width of the first tenon 21 is smaller than the width of the second tenon 31 , and the length of the first tenon 21 is greater than that of the second tenon 21 The length of the tenon 31.

The screw 4 is locked inward from the fixing hole 17 of the first surface 11 into the two side surfaces 22 of the first tenon 21 passing through the first crossbar 2 (refer to Figures 7 to 9), and the screw 4 is locked into the second horizontal In the end surface 32 of the second tenon 31 of the rod 3, a three-axis tenon joint reinforcement structure can be achieved, which can prevent the structure from loosening and shaking, and is more reliable and durable, and improves safety.

The above-mentioned embodiments are only for the convenience of illustrating the present creation, and are not intended to limit it. Various simple changes and modifications that can be made by those skilled in the industry without departing from the spirit of the present creation should still be included in the following patent applications. in the range.

1: Footpost

11: The first surface

12: Second surface

13: The first side

14: Second side

15: The first tenon hole

16: The second tenon hole

18: tenon

2: The first crossbar

21: The first tenon

22: Side

3: Second crossbar

31: Second tenon

32: End face

4: Screws

41: Screws

8: Angle iron

Claims (4)

A mortise joint structure for table and chair components, comprising a foot post, a first cross bar, a second cross bar and a screw, wherein: The foot post has front and rear opposite first surfaces, second surfaces and left and right opposite first and second sides. The first side is concave with a first tenon hole, and the second surface is concave with a second tenon hole. and the second tenon hole communicates with the first tenon hole at right angles, and the first surface is provided with a fixing hole facing the second tenon hole; The end of the first transverse rod is protruded with a first tenon, and the first tenon is inserted into the first tenon hole of the first side surface; The end of the second crossbar is protruded with a second tenon, the second tenon is inserted into the second tenon hole on the second surface, and the end face of the second tenon is close to or in contact with the side surface of the first tenon; The screw is locked inward from the fixing hole on the first surface into both sides of the first tenon passing through the first crossbar, and the screw is continuously locked into the end face of the second tenon of the second crossbar. The mortise-joint structure for table and chair components according to claim 1, wherein the width of the first tenon is smaller than the width of the second tenon. The mortise-joint structure of the table and chair components according to claim 2, wherein the length of the first tenon is greater than the length of the second tenon. The tenon joint structure of the table and chair components as claimed in claim 1, wherein the first tenon is deviated from the center of the end portion of the first crossbar.

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