JPH024211Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a hinge used for bending, for example, a table or a top plate of a writing desk.

[Prior Art] Conventionally, flag hinges have been frequently used to bend top plates and the like. Further, as shown in Japanese Utility Model Application No. 48-76354, a hinge is disclosed that connects two L-shaped link plates at the center and slides one end of each plate into a long hole.

[Problems to be solved by the invention] However, adding a horizontal holding function such as a top plate to the flag hinge complicates the structure. For this reason, the horizontal holding of the top plate and the like is currently performed by a stay extending from the fixed portion toward the top plate.

Furthermore, with the latter hinge, the entire top plate load had to be supported by a single connecting pin in the center of the link plate, which resulted in an overload condition and was likely to break due to continued use.

However, in view of the above-mentioned conventional situation, the present invention is
The purpose is to provide a hinge that can horizontally hold and fold a top plate etc. with a simplified structure.

[Means for Solving the Problems] In the present invention for solving the above object, the embedded piece 10 of the main body member 1 is attached to the embedded groove of the fixed side top plate A, and the horizontal Connecting piece 1 in the direction
1 has been extended. The embedded piece 20 of the wing member 2 is attached to the embedded groove of the folding side top plate B. Two pins 3 and 4 are respectively provided upright on the connecting piece 11 of the main body member 1 and the embedded piece 20 of the wing member 2, and these two pins 3 and 4 are guided mutually. Horizontal guide grooves 5 and 6 are provided in the horizontal direction. Therefore, the connecting piece 11 and the embedded piece 20 are assembled to each other through the pin groove to basically constitute a hinge.

Further, one of the horizontal guide grooves is connected with a rotation guide groove 7 in a cross direction, and the two members 1 and 2 are connected to each other.
As the pins 3 and 4 approach each other, the pins 3 and 4 are separated from each other at the ends of the horizontal guide grooves 5 and 6, so that the folding side top plate B
The wing fixing position is configured such that the two members 1 and 2 are separated, so that the pins 3 and 4 approach each other in the horizontal guide grooves 5 and 6, and one pin is located in the rotation guide groove 7. This constitutes a wing release position where the folding side top plate B can be folded.

[Function] In the hinge, the embedded piece 10 of the main body member 1 and the embedded piece 20 of the wing member 2 are embedded in the embedded grooves of the fixed side top plate A and the folding side top plate B, and are connected. The piece 11 and the embedded piece 20 are assembled by engaging with each other through a pin groove.

In the wing fixed position, the fixed side top plate A and the folding side top plate B are in a horizontal position. In this case, as both top plates A and B approach each other, the main body member 1 and the wing member 2 approach each other. In this approach state, the pin 3 of the connecting piece 11 of the main body member 1 is located at the end of the horizontal guide groove 6 in the embedded piece 20 of the wing member 2, and the pin 4 of the embedded piece 20 is located in the embedded piece 20 of the wing member 2. It is located at the end of the 20 horizontal guide grooves 5. As a result, the pins 3 and 4 are regulated by the mutual horizontal guide grooves 5 and 6, thereby forming the wing fixing position.

On the other hand, in the wing release position, the folding side top plate B is separated from the fixed side top plate A, so that the main body member 1 and the wing member 2 are separated from each other. In this separated state, the pins 3 and 4 are close to each other, and one of the pins 4 is located in the rotation guide groove 7, so that a wing release position is formed. As a result, the pin 4 is guided in the cross direction by the rotation guide groove 7, so that the folding side top plate B is folded.

[Embodiment] FIGS. 1 to 3 show an embodiment of the present invention.

As shown in the first figure, the hinge includes a main body member 1, a wing member 2, two pins 3, 4, two horizontal guide grooves 5, 6, and a rotation guide groove 7.

The main body member 1 has a rectangular shape made by folding one plate-like member into two and overlapping each other. One half of the embedded piece 10 is formed, and a connecting piece 11 is formed on the other half. Attachment pieces 12, 12 are formed on both sides of the lower edge of the embedded piece 10, respectively, bent outward at a substantially right angle. Each mounting piece 12,1
2 has a plurality of countersunk holes 13, 13 as mounting holes. One of the two pins 3 and 4 is erected approximately at the center of the tip of the connecting piece 11. This one pin 3 protrudes only from one plate surface of the connecting piece 11, that is, from the front surface side.
The two horizontal guide grooves 5 and 6 are provided at the bottom of the connecting piece 11 located between one of the pins 3 and the embedded piece 10.
One of them is punctured. This one horizontal guide groove 5 is elongated toward the tip of the connecting piece 11 and the embedded piece 10.

The wing member 2 includes the other embedded piece 20, which is formed by bending a single plate-like member into an inverted U shape.
20, and these embedding pieces 20, 20 are embedded in embedding grooves b bored in the back surface of the folding side top plate B. A mounting groove 21 into which the connecting piece 11 is inserted is formed between each embedded piece 20, 20. The width T of this mounting groove 21 is slightly larger than the thickness t of the connecting piece 11;
The depth H of the mounting groove 21 is greater than the height h of the connecting piece 11.

On both sides of the lower edge of the embedded pieces 20, 20, mounting pieces 22, 22 are bent outward at a substantially right angle, and each mounting piece 22, 22 has a plurality of countersinks 23, 23 as mounting holes. It is worn. Further, the embedded piece 20 located on the front side has the other horizontal guide groove 6 into which the one pin 3 is slidably inserted. The embedded piece 20 on the side opposite to this embedded piece 20 on the near side and the embedded piece 20 on the near side have another pin 4 that is slidably fitted into the one horizontal guide groove 5. It will be straddled. An escape hole 24 for fixing the pin 3 to the connecting piece 11 is bored in the embedded piece 20 facing a part of the other horizontal guide groove 6 .

Then, the main body member 1 and the wing member 2 are assembled as follows. Insert the connecting piece 11 into the mounting groove 21. After that, with one pin 3 fitted into the other horizontal guide groove 6, one pin 3 is fixed to the connecting piece 11 by using the relief hole 24, and the other pin 4 is inserted into one horizontal guide groove 5. After fitting, insert both ends of the other pin 4 into the embedded pieces 20, 2.
Fix it to 0. Therefore, the two pins 3 and 4
and the two horizontal guide grooves 5 and 6, the wing member 2 is connected to the main body member 1 so as to be movable in the horizontal direction.

In this connected state, when the wing member 2 assumes the wing fixed position with respect to one mounting member 1, one pin 3 is located at the left end of the other horizontal guide groove 6, as shown in FIG. 2a. At the same time, the other pin 4 is located at the right end of one horizontal guide groove 5. Further, when the wing member 2 takes the wing release position with respect to one of the mounting members 1, as shown in FIG. 2b, one pin 3 is located at the right end of the other horizontal guide groove 6, and the other Pin 4 of
is located at the left end of one horizontal guide groove 5.

Further, a rotation guide groove 7 is bored in the connecting piece 11. This rotation guide groove 7 is connected to the left end of the one horizontal guide groove 5 and has an arc shape centered on one pin 3, and the groove width D of the rotation guide groove 7 is equal to the width of the other pin 4. slightly larger than the outer diameter d. Therefore, in the wing release position, the wing member 2 is in contact with the main body member 1.
As shown in FIGS. 2c to 2e, the pin 3 is rotated at a substantially right angle using one pin 3 as a rotation fulcrum. At this time, the rear end 2a of the other mounting member 2 is
It is designed so that it does not cross the end face of the fixed side top plate A shown by the imaginary line in .

Further, rotation regulating grooves 8 and 9 are formed in the main body member 1 and the wing member 2, respectively. The rotation regulating groove 8 of the main body member 1 is formed in a long hole shape from the end of the rotation guide groove 7 toward the embedded piece 10 in a state substantially parallel to one of the horizontal guide grooves 5. The groove width L is slightly larger than the outer diameter d of the other pin 4. The rotation regulating groove 9 of the wing member 2 is formed in the shape of a long hole in the embedding piece 20 on the front side so as to be connected to the right end of the other horizontal guide groove 6 at a substantially right angle. This rotation regulating groove 9
The groove width F is slightly larger than the outer diameter f of one pin 3. Therefore, by moving the wing member 2, which has been rotated approximately perpendicularly to the main body member 1, in the direction of the arrow Y, as shown in FIG. The rotation of the wing member 2 is restricted by the cooperation of the pins 3 and 4 and the two rotation restriction grooves 5 and 6.

In the embodiment configured as above,
After bringing the end surfaces of the fixed side top plate A and the folding side top plate B into abutment state, the main body member 1 and the wing member 2 are brought into a horizontal wing fixed position as shown in FIG. 2A, One embedded piece 10 and the other embedded piece 20, 20 are placed in the embedded grooves a and b of both top plates A and B, respectively.
Insert. Then, by screwing the mounting screws C and C into each of the top plates A and B through the countersinks 13, 13..., the main body member 1 is fixed to the fixed side top plate A, and the main body member 1 is fixed to the folding side top plate B. The wing member 2 is fixed. As a result, as shown in FIG.
4 and the two horizontal guide grooves 5 and 6, a horizontal locked position can be maintained.

Next, a case will be described in which the folding side top plate B is folded downward at a substantially right angle. First, from the state shown in Figure 3a, move the folding side top plate B in the direction of arrow v (arrow V in Figure 2).
(same direction) as shown in Figure 3b. As a result, the wing member 2 is placed in the wing release position relative to the main body member 1, and one pin 3 is used as a rotation fulcrum while the other pin 4 is moved into the rotation guide groove 6.
, and the wing member 2 rotates in the direction of arrow x (same as arrow X in FIG. 2). As a result, the folding side top plate B is folded as shown in FIGS. 3b to 3c. In other words, by horizontally moving the folding side top plate B from the wing fixing position of the main body member 1 and the wing member 2 to the wing release position in the direction of arrow v, the folding side top plate B is folded downward at a substantially right angle by its own weight. Is possible.

After that, in the state shown in Fig. 3c, move the folding side top plate B in the direction of arrow y (same as the direction of arrow Y in Fig. 2).
By pushing it, the two pins 3 and 4 are moved to the two rotation restriction grooves 8 and 9, and the rotation of the folding side top plate B is restricted.

FIG. 4 is a schematic diagram corresponding to FIG. 3 when the folding side top plate B is folded upward at a substantially right angle using the hinge of the above embodiment. In this case, the embedded grooves a and b are bored on the upper surfaces of the ends of both top plates A and B, and the mounting pieces 12 and 23 of the main body member 1 and wing member 2 are attached to the upper surfaces of both top plate elements A and B. fixed to the side. Therefore, in order to fold the folding side top plate B upward in this modification, the folding side top plate B is moved in the direction of the arrow v1 (same as the direction of the arrow v in FIG. 3) from the state shown in FIG. 4a. ) to bring it into the state shown in FIG. 4b, and then rotate it in the direction of arrow x1 (opposite to the direction of arrow x in FIG. 3) to bring it into the state shown in FIG. 4c. Thereafter, the folding side top plate B is pushed in the direction of arrow y1 (same as the direction of arrow y in FIG. 3) to bring it into the state shown in FIG. 4d. As a result, due to the cooperation of the two pins 3 and 4 and the two rotation restriction grooves 8 and 9, the folding side top plate B is folded upward with its rotation being restricted. .

FIG. 5 shows another embodiment of the hinge of the present invention, in which the same elements as those in the previous embodiment are given the same reference numerals and redundant explanation will be omitted. The feature of this embodiment is that when the horizontal guide grooves 5, 6, the rotation guide groove 7, and the rotation restriction grooves 8, 9 are taken as standards, each mounting piece 12,
12, 22, 22 are provided from the upper edge of each embedded piece 10, 20, respectively. Therefore, according to this embodiment, when folding side top plate B is folded downward with respect to fixed side top plate A, each mounting piece 1
2, 12, 22, and 22 are arranged on the upper surface sides of both top plates A and B. In addition, when folding the folding side top plate B upward with respect to the fixed side top plate A, each mounting piece 12, 12,
22, 22 are arranged on the lower surface side of both top plates A, B.

FIG. 6 shows yet another embodiment, which is characterized in that the other mounting member 2 is not provided with a mounting groove 21 for the connecting piece 11, and the other embedded pieces 20, 20 are formed into one plate-shaped body. It is that you are. In this embodiment, large-diameter heads 30 and 40 are formed at the tops of one pin 3 and the other pin 4, respectively, and each head 30 and 40 connects the main body member 1 and the wing member. 2 are connected in a manner that prevents them from coming off.

In each of the above-mentioned embodiments, it is assumed that the main body member 1 is provided on the fixed side top plate A, but the design can be changed such that the main body member 1 is provided on the folding side top plate 2, replacing each other.

[Effects of the invention] As explained above, the invention has the following effects.

(b) The main body member and the wing member that are horizontally moved between the wing fixing position and the wing release position are provided with two
A main pin and two horizontal guide grooves for guiding these two pins are provided, and one of the horizontal guide grooves is provided with a rotation guide groove in which the wing member rotates relative to the main body member at the wing release position. Since the structure is arranged in series, the top surface of the foldable top plate element can be held substantially flush and horizontal, and the top plate element can be folded with a simple operation.

(b) The horizontal holding function and rotation function of the hinge are made up of two pins, two horizontal guide grooves that guide these two pins, and a rotation guide groove that is connected to one of the horizontal guide grooves. It was possible to put it into practical use with a simplified structure.

(c) Since there are two pins, the joint structure is strong,
Can withstand top plate loads.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view of one embodiment of the hinge according to the present invention, and Fig. 2 is a side view of the same hinge, where a shows the horizontal wing fixing position, and b shows the horizontal wing fixing position. It shows the release position, c and d show the rotation state, e shows the rotation end position, and f shows the wing fixing position after the rotation end. Figures 3 a to d are schematic diagrams illustrating the function of the hinge in its assembled state;
Figures a to d are schematic diagrams illustrating the operation of the same hinge in other assembled states, Figure 5 is an exploded perspective view showing another embodiment, and Figure 6 is an exploded perspective view showing still another embodiment. be. 1... Main body member, 2... Wing member, 3, 4
... Pin, 5, 6 ... Horizontal guide groove, 7 ... Rotation guide groove, 8, 9 ... Rotation regulation groove, 10, 20 ...
...embedded piece, 11...connection piece, A...fixed side top plate,
B...Folding side top plate.

Claims (1)

[Scope of utility model registration request] Insert the embedded piece 1 of the main body member 1 into the embedded groove of the fixed side top plate A.
0 is attached, and the connecting piece 11 is extended horizontally from this embedded piece 10, and the embedded piece 20 of the wing member 2 is attached to the embedded groove of the folding side top plate B, and the connecting piece 1 of the main body member 1 is attached. In the piece 11 and the embedded piece 20 of the wing member 2, two pins 3 and 4 are respectively provided upright, and horizontal guide grooves 5 and 6 for mutually guiding these two pins 3 and 4 are provided. Each of the pins 3 and 4 is provided in the horizontal direction and assembled to each other, and one of the horizontal guide grooves is provided with a rotation guide groove 7 in the cross direction. A wing fixing position is formed in which the folding side top plate B is horizontal by being spaced apart from each other at the ends of the horizontal guide grooves 5 and 6, and each pin 3 and 4 is mutually spaced apart from each other in a horizontal guide position. A hinge in which the wing release position where the folding side top plate B can be folded is formed by bringing the grooves 5 and 6 closer together and positioning one pin in the rotation guide groove 7.