JP3079020U - Folding structure of folding desk - Google Patents

Abstract

(57) [Problem] To provide a folding machine structure of a folding desk which is easy to operate, quick, convenient, labor-saving, has no direction angle limitation, has a wide range of use, and is highly practical. SOLUTION: The folding structure of the folding desk includes a leg installation part 3.
A convex arc surface 310 and a hooked convex block 32 are installed on the support plate 31 of No. 0, and a perforation 43 is installed on the desk board installation section 40. A spring 53 and a control rod 52 having a stereotaxic mass 50 are installed between the leg installation portion 30 and the desk board installation portion 40, and the stereotactic mass 50 has a concave arc surface 50.
1 and the stereotaxic mass 50 blocks the leg installation part 30, so that the desk-board installation part 40 and the leg installation part 30 are in a vertical state, and the legs are opened to have a function of supporting the desk-board. When the legs are folded, simply by pressing the control rod 52, the leg installation section 30 and its legs are bent. Thereby, the operation is simple, convenient, labor-saving, fast, and promotes very good practicality and effect.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a folding desk structure of a folding desk which fixes and bends a leg installation part and a desk board installation part, and is particularly easy to operate, quick, convenient, labor saving, The present invention also relates to a folding machine structure of a folding desk which has a wide range of use without any limitation of direction angle and is highly practical.

[0002]

[Prior art]

 Conventionally, in general, a folding device of a folding desk is a part that assembles and integrates the leg and the desk board, supports the desk board with the legs standing up, or folds the legs and approaches the bottom of the desk board This reduced the size.

FIGS. 9 to 11 show a folding device of a conventional folding desk, FIG. 9 is an exploded perspective view, FIG. 10 is a sectional view, and FIG. 11 is a side view. FIG. 12 is a bottom view and an enlarged view of a main part when the folding device of the folding desk shown in FIG. 9 is used for a desk provided with a side decorative plate.

As shown in FIGS. 9 to 11, a folding device of a conventional folding desk includes a leg installation part 10 and a desk board installation part 20, and the leg installation part 10 has a fixing hole for assembling the leg 6. 3, a support plate 11 is provided on both sides of the upper end, a rivet shaft hole 2 is provided in the support plate 11, and a holding groove 12 is provided in one of them. The desk-board mounting portion 20 is U-shaped, and has a rivet contact shaft hole 2 penetrating therethrough. The leg mounting portion 10 is integrally combined with the rivet shaft 1, and the leg mounting portion 10 rotates.

A fixing hole 3 for installing the desk plate 5 is provided at an upper end of the desk plate installation portion 20, and a corresponding rectangular sliding groove 22 and a rivet contact hole 4 are installed therein. Insert the positioning rod 23. A hook 25 is provided at the rear end in the desk board installation portion 20, and a tension spring 24 is attached to the engagement protrusion 25, and is connected to the positioning rod 23. Before the positioning rod 23 is operated, it is clamped in the clamping groove 12 of the leg installation portion 10.

As a function of use, when the legs 6 are opened and the desk plate 5 is supported, as shown in FIG. 10 and FIG. 11, the leg setting portion 10 and the desk plate setting portion 20 maintain a vertical state with respect to each other. The positioning rod 23 is caught in the holding groove 12 of the support plate 11 of the leg installation part 10 by the action of the tension spring 24, and the leg installation part 10 is caught and cannot be bent. .

When it is desired to bend the leg 6, as shown by the dotted lines in FIGS. 10 and 11, the positioning rod 23 is bent outward and detached from the holding groove 12, and the leg installation part 10 is The leg installation part 10 and the leg 6 are bent toward the bottom surface of the desk plate 5 and the leg 6 is attached to the bottom surface of the desk plate to reduce the volume.

[0008]

[Problems to be solved by the invention]

 As described above, in the folding structure of the conventional folding desk, when the bending operation is performed in a vertically sandwiched state, the weight of the desk plate 5 is applied with downward pressure. In addition, since the positioning rod 23 is sandwiched in the holding groove 12 of the leg installation portion 10, and the positioning rod 23 is more strongly sandwiched by the weight of the board, a great force is required during operation.

In addition, as shown in FIG. 12, when the side decorative plate 7 is used on the side surface of the desk board 5, the side decorative plate 7 is shielded outside at the point of the side decorative plate 7 near the positioning rod 23. Therefore, it is extremely inconvenient to form the stenosis space H and insert and move a human hand. In addition, two types of standards are required for manufacturing, and the dies and manufacturing procedures are different, which increases costs and is inconvenient for selection. Here, in order to improve the problem of the constricted space H in FIG. 12, if the folding device is set to the same standard of the left-right type, there is not much advantage since the stereotactic rods must be installed on both the left and right sides.

The present invention has been made in view of these circumstances, and is a folding desk folding device that is easy to operate, quick, convenient, labor-saving, has no direction angle limitation, and can be used in a wide range. It is to provide a structure.

[0011]

[Means for Solving the Problems]

 In order to achieve the above object, the folding desk structure of a folding desk according to claim 1 is provided with a leg installation portion for installing a leg, and provided on both upper ends of the leg installation portion, and a first rivet contact hole. A first support plate penetrating therethrough, a hooked protrusion protruding from a front end of the first support plate, and a first rivet shaft inserted into a first rivet contact hole of the first support plate. A second U-shape hole is formed in the U-shape so as to press and wrap the first support plate of the leg installation part, and the second U-shape hole is formed in the second U-shape hole. A table mounting portion for rotatably mounting the leg mounting portion by inserting the first tack shaft with the first tack connecting shaft hole of the supporting plate; and an upper end of the table mounting portion A second support plate for mounting a desk plate, an assembly shaft hole formed on one side surface of the desk plate installation portion, and a second stud shaft inserted into the assembly shaft hole. A hole formed in a surface of the desk board installation portion in the rotation direction of the leg installation portion, a control rod inserted into the hole, and a control rod provided on the base end side of the control rod; A rivet shaft hole is formed, and the second rivet shaft is inserted into the third rivet shaft hole, so that the second rivet shaft is rotatably attached to the inside of the desk board installation portion, and the hooked mass is formed. A stereotactic mass that can be locked at a fixed position with extended legs, and a spring that is provided between the stereotactic mass and the desk board installation portion and that urges the stereotactic mass in a direction to lock the engaging convex mass. It is characterized by having.

[0012] The folding desk structure of the folding desk according to claim 2 is the folding desk structure of the folding desk according to claim 1, wherein the first rivet connection shaft hole of the leg installation portion is provided with The center of gravity of the first support plate is set so that the center of gravity is slightly inclined in the forward direction, and the protrusions are provided at both corners of the leg installation portions. The leg installation portion is set to a vertical or outward inclination by bending or making a horizontal straight line at a predetermined angle based on the angle, and the legs support the desk board with the vertical or outward inclination. .

According to a third aspect of the present invention, there is provided the folding desk structure of the folding desk according to the first aspect, wherein the spring employs a linear tension spring. You.

[0014] According to the configuration of the first to third aspects, the control rod operated when the legs are folded protrudes from the front surface of the desk board installation portion instead of the side surface, and there is no left and right narrow space, so that the operation is simple and quick. It is convenient, labor-saving, has no directional angle limitation, and can be used widely.

[0015]

[Embodiment of the invention]

 Hereinafter, embodiments of the folding device structure of the folding desk according to the present invention will be described with reference to the drawings. 1 to 4 show a first embodiment of the folding device structure of the folding desk according to the present invention, FIG. 1 is an exploded perspective view, FIG. 2 is a perspective view, and FIG. 3 is a state in which legs are extended. FIG. 4 is a sectional view in a state where the legs are folded, and FIG. 5 is a bottom view and a perspective view when the folding device of the folding desk in FIG. 1 is used for a desk provided with a side decorative plate.

As shown in FIGS. 1 to 4, the folding structure of the folding desk includes a leg mounting portion 30 on which the leg 6 is mounted, and a first stud provided on both upper ends of the leg mounting portion 30. A first support plate 31 having a contact hole 2 formed therethrough, a hook 32 protruding from a front end of the first support plate 31, and a first rivet contact shaft of the first support plate 31; A first rivet shaft 1 inserted into the hole 2 is formed so as to press and wrap the first support plate 31 of the leg installation portion 30 in a U-shape, and a second rivet contact shaft hole 2 penetrates. When the first rivet shaft 1 is inserted into the second rivet contact hole 2 together with the first rivet contact hole 2 of the first support plate 31, the leg mounting portion 30 is provided. And a second support plate 41 which is provided at an upper end of the desk board installation part 40 and on which the desk board 5 is installed, and An assembly shaft hole 42 formed on one side surface of the mounting portion, a second stud shaft 1 inserted into the assembly shaft hole 42, and a surface formed in the rotation direction of the leg installation portion 30 of the desk board installation portion 40. And a control rod 52 to be inserted into the hole 43, a third rivet contact hole 2 formed at the base end of the control rod 52, and a third rivet contact hole 2. By inserting the second stud shaft 1 into the hole 2, the second stud shaft 1 is rotatably attached to the inside of the desk board installation portion 40, and the engaging convex block 32 can be locked at a fixed position where the leg is extended. A stereotaxic mass 50; and a spring 53 provided between the stereotaxic mass 50 and the desk board setting unit 40 and biasing in a direction in which the stereotaxic mass 50 locks the engaging convex mass 32. And

More specifically, the folding desk structure of the folding desk according to the present embodiment includes a leg installation section 30 and a desk board installation section 40. The support plate 31 provided with the rivet contact shaft hole 2 is installed on both sides of the upper end. The desk board installation part 40 has a U-shape, and the rivet contact shaft hole 2 is also provided therethrough. When the desk-board mounting section 40 is installed so as to press and wrap the support plate 31 of the leg-installing section 30 and is stopped with the rivet shaft 1, the leg-installing section 30 and the desk-board mounting section 40 are integrated, and the leg-installing section is formed. 30 rotates and stops by control. Further, a support plate 41 having a fixing hole 3 is installed at the upper end of the desk plate installation section 40, and is attached to the desk plate 5 to be integrated.

The support plate 31 of the leg installation portion 30 has a protruding engaging mass 32 protruding from the front end, and the engaging convex mass 32 extends to a lower bottom edge to form a convex arc surface 310. The center of gravity of the rivet contact hole 2 of the support plate 31 is set at the front, and is not the center of the support plate 31. Further, outwardly protruding locking protrusions 33 are provided at both upper ends of the upper ends of the leg mounting portions 30. The locking protrusions 33 are bent at a predetermined angle or become a horizontal straight line depending on the setting.

The desk board installation part 40 has an assembly shaft hole 42 penetrating through one side surface and a rectangular perforation 43 penetrating the front end. The control rod 52 provided with the stereotaxic mass 50 is attached there. At the bottom, the stereotaxic mass 50 is provided with a rivet contact hole 2, which is rotated by the rivet shaft 1 by aligning it with the assembling axial hole 42 of the desk-board installation section 40. Then, one end of the V-shaped spring 53 is inserted therein. The V-shaped spring 53 has a V-shaped shape and is combined with one end of the stud shaft 1, and the other end is installed on the front inner side wall of the desk board installation part 40. In addition, the control rod 52 of the stereotaxic mass 50 is put out from the perforation 43 to the front end of the desk board installation portion 40, and the stereotaxic mass 50 is provided with a concave arc surface 501 at the tip corresponding to the leg installation portion 30 support plate 31 convex arc surface 310, Due to the operation, the convex arc surface 310 of the support plate 31 is fitted in an arc shape, the leg installation portion 30 and its legs are bent, and the corners of the stereotactic mass 50 become the hooked mass 32 of the leg installation portion 30 support plate 31. In this case, the leg installation section 30 and the desk board installation section 40 have a vertical angle of 90 °, and the legs support the desk board.

In the case of using a desk board, as shown in FIG. 3, the leg installation section 30 and the desk board installation table 40 are set in a 90-degree vertical state, and the stereotactic mass 50 is subjected to the tension action of the V-shaped spring 53. Then, the stereotaxic mass 50 is moved forward, and rides on the convex mass 32 engaged with the support plate 31 of the leg installation portion 30. In other words, the protruding block 32 engaging with the support plate 31 of the leg installation section 30 is blocked by the stereotactic block 50. That is, the localization mass 50 serves as a fulcrum at the location of the stud axis 1, and a contact point between the engaging convex mass 32 and the localization mass 50, and a contact point between the control rod 52 and the bottom end of the perforation 43 of the table board installation portion 40, and two support points. D1 and D2 are formed to form triangular support points, which prevent the support plate 31 of the leg installation portion 30 from rotating, thereby keeping the leg installation portion 30 in a vertical state. Further, as can be seen from the above description, the insertion of the stereotaxic mass 50 is prevented by the engaging convex mass 32, a very good stopping effect is obtained, and the engaging convex mass 32 never comes off from the engaging convex mass 32 except for inverting the control rod 52 artificially. There is no accidental rotation.

When it is desired to fold the leg 6, as shown in FIG. 4, the control rod 52 is moved upward and the stereotaxic mass 50 is rotated. The convex block 32 is no longer obstructed by the stereotaxic block 50, the support plate 31 rotates, and the leg placement section 30 and its leg 6 are bent and become parallel to the desk board 5. Further, a convex-arc surface 310 and a concave-arc surface 510 are provided on the leg-mounting section 30 support plate 31 and the stereotactic mass 50, respectively, which correspond to each other. The orientation is held by the support plate 31. Advantages of this are: (1) The concave arc surface 510 of the stereotaxic mass supports the convex arc surface 310 at the lower end of the support plate 31, and the horizontal state of the leg installation section 30 is maintained. (2) Further, when the desk board installation section 40 is used again in the vertical state, the support plate 31 supports the stereotactic mass 50 through the reversing action and moves to the opening of the engaging convex mass 32, and the stereotaxic mass is instantaneously moved. Then, the support plate 31 is automatically engaged, and the reaction is prompt and accurate.

When it is desired to bend the leg installation section 30 (desk board 5) of the present embodiment, simply press the control rod 52 to rotate the legs, and return to the original position to remove the desk board. If you want to erect it, just flip it up and it will be hooked automatically and will be in a vertical support state. Thus, the “push” operation is simple, fast, and labor-saving. Further, by setting the “arc” angle of the convex arc surface 310 and the concave arc surface 501, the rotation is smooth and labor saving.

In the case of the desk board 5 provided with the side decorative plate 7, as shown in FIG. 5, the control rod 52 of the present embodiment is exposed at the front end of the desk board installation section 40, and is not the side. For this reason, the problem of the narrow space of the side decorative plate 7 is solved, and the space at the front end simplifies the operation with the fingers of the hand. Further, unlike the conventional case, there is no need to perform the manufacturing process of the left-right standard, and the present embodiment is suitable for any position and has a wide practical range.

FIG. 6 is a bottom view and a side view showing a second embodiment of the folder structure of the folding desk according to the present invention. As shown in FIG. 6, in the second embodiment, locking projections 33 are installed on both sides of the upper end edge of the leg installation portion 30, and the center of gravity of the rivet contact hole 2 of the support plate 31 is deviated. For this reason, if the locking convex block 33 is provided with a curved angle, the blocking length at the edge of the desk board setting section 40 becomes longer, and even if the center of gravity of the leg setting section 30 is biased, the desk board and the legs are set in a vertical state. be able to.

FIG. 7 is a bottom view and a side view showing the third embodiment of the folding device structure of the folding desk according to the present invention. As shown in FIG. 7, in the third embodiment, in order to support the legs 6 in the shape of an figure of eight, the protrusions 33 engaging the leg mounting portions 30 are set in a “horizontal straight line” shape. 6, the center of gravity at the desk-board setting section 40 is biased by the leg-mounting section 30 support plate 31, so that the locking protrusion 33 has a blocking length at the desk-board setting section 40. Become shorter. Therefore, the leg installation portion 30 is no longer in a vertical state, and the legs 6 are supported in a figure eight shape, which has an effect of increasing the support area. In addition, if the angle of the locking projection 33 of the leg installation portion of the present embodiment is set to support the legs at different angles, the practical range becomes extremely wide.

FIG. 8 is a sectional view showing a fourth embodiment of the folding device structure of the folding desk according to the present invention. 8, in the fourth embodiment, a spring for controlling the stereotaxic mass 50 employs an elastic component such as a linear tension spring 530, and a hook 34 is installed on the leg installation portion 30 and tension is applied thereto. By hooking one end of the spring 530 and installing the other end of the tension spring 530 in the spring insertion hole 51 of the stereotactic mass 50, the stereotactic mass 50 can be supported by the support plate 31 or stopped by the engaging convex mass 32. I have.

In such an embodiment, the same effects as those in the embodiment shown in FIGS. 1 to 5 can be obtained.

[0028]

[Effect of the invention]

 As described above, according to the present invention, the control rod operated when folding the legs protrudes not on the side but on the front of the desk board installation part, and there is no narrow space on the left and right, so the operation is easy, quick and convenient. Therefore, it is labor-saving, has no direction angle limitation, has a wide range of use, is highly practical, and can have extremely good practicality and productivity.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a first embodiment of a folding device structure of a folding desk according to the present invention.

FIG. 2 is a perspective view showing a state where the folding device of the folding desk shown in FIG. 1 is assembled.

FIG. 3 is a sectional view of the folding desk of FIG. 1 in a state where legs of the folding device are extended.

FIG. 4 is a cross-sectional view of the folding desk of the folding desk of FIG. 1 in a state where legs of the folding device are folded.

5 is a bottom view and a perspective view when the folding device of the folding desk of FIG. 1 is used for a desk provided with a side decorative plate.

FIG. 6 is a bottom view and a side view showing a second embodiment of the folding device structure of the folding desk according to the present invention.

FIG. 7 is a bottom view and a side view showing a third embodiment of the folding device structure of the folding desk according to the present invention.

FIG. 8 is a sectional view showing a fourth embodiment of the folding device structure of the folding desk according to the present invention.

FIG. 9 is an exploded perspective view of a folding device of a conventional folding desk.

FIG. 10 is a sectional view of the folding device of the folding desk of FIG. 9;

FIG. 11 is a side view of the folding device of the folding desk in FIG. 9;

12 is a bottom view and an enlarged view of a main part when the folding device of the folding desk of FIG. 9 is used for a desk provided with a side decorative plate.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 stud shaft 10 leg setting portion 11 support plate 12 clamping groove 2 stud contact shaft hole 20 desk plate setting portion 21 support plate 22 sliding groove 23 positioning rod 24 tension spring 25 engaging convex 3 fixing hole 30 leg setting portion 31 support plate 310 Convex arc surface 32 Engage convex mass 33 Engage convex mass 34 Engage convex 4 Tack contact hole 40 Desk installation part 41 Support plate 42 Assembly shaft hole 43 Drilling 5 Machine plate 50 Stereotaxic mass 501 Concave arc surface 51 Spring insertion hole 52 Control rod 53 V-shaped spring 530 Extension spring 6 Leg 7 Side decoration plate D1 Support point D2 Support point H Narrow space

Claims (3)

[Utility model registration claims] A first support plate provided on both sides of an upper end of the leg installation portion, the first support plate having a first rivet contact hole formed therethrough; and a first support plate. A projecting protruding mass at the front end of the first support plate, a first tack shaft inserted into a first tack contact shaft hole of the first support plate, and a U-shaped first support plate of the leg mounting portion. It is formed so as to hold down and wrap, and a second rivet contact shaft hole is provided through,
Desk board for mounting the leg installation portion in a rotatable state by inserting the first stud shaft together with the first stud shaft hole of the first support plate into the second stud shaft hole. An installation part, a second part which is provided at an upper end of the desk board installation part and installs the desk board.
A support plate, an assembly shaft hole formed on one side surface of the desk board installation portion, a second stud shaft inserted into the assembly shaft hole, and a rotation direction of the leg installation portion of the desk board installation portion. A perforation formed in the surface, a control rod inserted into the perforation, and a third rivet contact shaft hole formed at the base end side of the control rod and formed in the third rivet contact shaft hole. A stereotactic mass that is rotatably attached to the inside of the desk board installation portion by inserting the second tack shaft, and is capable of locking the engaging convex mass in a fixed position where the leg is extended; A spring provided between the lump and the desk board setting portion, and biasing in a direction in which the stereotactic lump locks the hooked convex lump; and a spring structure for a folding desk. 2. The first rivet connection shaft hole of the leg installation portion is installed not at the center of the first support plate but so that the center of gravity is slightly inclined in the forward direction. By providing a protruding locking convex block, and bending or forming the locking convex block to a predetermined angle or a horizontal straight line based on the setting, the leg installation portion is set to a vertical or outward inclination, 2. The folding structure for a folding desk according to claim 1, wherein the supporting means supports the desk plate at a vertical or outward inclination. 3. The folding structure for a folding desk according to claim 1, wherein said spring employs a linear tension spring.