JPS6117171Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a door opening/closing device, and more specifically, the purpose of the invention is to smoothly open and close the door in a device in which the door can be stored inside the furniture body when opened. be.

The present invention will be explained in detail with reference to the attached drawings below. The door opening/closing device of the present invention includes a door body 1, a rotary support 3 for rotatably attaching the door body to the front part of the furniture 2, and a door body 2 to the furniture 2.
As shown in FIG. 1, the door body 1 is provided with a rolling member 5 such as a roller on one end of its inner surface to protrude from the upper edge of the door. One end (center end) is rotatably attached to the front edge of the top plate and bottom plate of the furniture body 2 by a pivot 6, and the other end (outer edge) is attached to the end part. The door body 1 is connected to the front opening of the furniture 2 via the rotary support 3 by being rotatably mounted on a pivot 7. Further, at a predetermined position between the mounting position of the rolling member 5 on the inner surface of the door body 1 and the pivot point of the rotation support body 3 by the pivot shaft 6, an operation regulating pin 8 is provided to protrude from the upper edge of the door, and to prevent the top from falling when the door is closed. It is installed so as to be able to come into contact with the inner edge 9' of the front stile 9, and the guide rail 4 that allows the door body 1 to be stored inside the furniture 2 is slidably fitted with the rolling member 5. A groove is formed at a predetermined depth on the lower surface of the top plate, and the entrance/exit portion 4' of the groove is used as a rotation locus P of the rolling member 5 about the pivot 6.
It is formed into an arc shape that matches the . On the other hand, from the functional point of view of connecting and supporting the door body 1 to the furniture 2, the rotary support 3 is structured as a bent rod consisting of upper and lower horizontal pieces 3', 3' and vertical pieces 3'', as shown in FIG. As shown in FIG. 6, pivot shafts 6, which are rotatably attached to the upper and lower horizontal pieces at 3' and 3', are inserted into the long holes 11 formed in the support plate and bottom plate through locking nuts 10. The rotary support body 3 can be rotated around the pivot 6 by screwing it into a square nut 12 that penetrates and is located on the back side of the support plate and the bottom plate, and the rotary support body 3 and the door body are screwed together. The pivot shafts 7, 7, which rotatably connect the two parts, are attached to predetermined positions of the vertical piece 3'' using another connecting plate or the like.

Therefore, the operation of the present device as described above is as shown in FIG. 3. When opening the door body 1 in the closed state, if the door body 1 is pulled out in the direction of the arrow Q in the figure, the entire door body is moved in the direction of the drawer at the beginning of the drawer. Due to the force applied to the door body 1
Since the operation regulating pin 8 provided on the upper edge is in contact with the inner edge 9' of the front stile 9 of the top plate, the door body 1 can be rotated momentarily around the operation regulating pin 8 together with the rotating support 3. As the rolling member 5 of the door body 1 moves, the rolling member 5 of the door body 1
Immediately after, the operation regulating pin 8 separates from the front stile 9 of the top plate, and the door body 1 rotates about the pivot 6. As the rolling member 5 is guided by the entrance/exit portion 4' of the guide rail 4, the state shown in FIG. Due to movement, one side becomes furniture 2
While being pulled out to the front, the rolling member 5 on the other side (the right side in the figure) is guided by the straight section 4'' of the guide rail 4 and pushed into the furniture 2 in the storage direction, as shown in FIG. The door body 1 is in an open state, that is, a state in which it is stored in the furniture 2. Conversely, when the door in the stored state is pulled out and the front of the furniture is closed, it is operated in the opposite direction to the above. The operation from the state shown in the figure to the state shown in FIG. If possible, the sliding speed will naturally decrease due to the arcuate rail shape of the entrance/exit part 4', so the door can be operated while alleviating the impact when the door is closed, and after that, the door body will be supported once around the pivot 6. The body 3 is rotated together, and finally the operation regulating pin 8 is brought into contact with the inner edge 9' of the front stile 9 of the top plate, so that the door is closed as shown in FIG. 3.

In this case, a bent edge 13 is formed on the side end surface of the door body 1 on the side where the rolling member 5 is attached, and is positioned inside the side stile 14 of the furniture when the door is closed. A plate 15 in contact with 13 may be provided.

According to the door opening/closing device of the present invention as described above, the door body 1 is rotatably provided on the furniture 2 via the pivot 7, the rotation support 3, and the pivot 6, and the operation regulating pin 8
and the entrance/exit part 4' of the guide rail 4 is connected to the door body 1.
First, the door body 1 in the closed state is
Even if the rolling member attachment side of the door body 1 momentarily pops out toward the front when the door is opened by pulling it out toward the front, the operation regulating pin 8 is in contact with the inner edge 9' of the front stile 9 of the top plate. Not only can this be reliably prevented, but the door body 1 momentarily rotates around the operation regulating pin 8, slides inward to the arcuate entry/exit portion 4' of the guide rail 4, and immediately thereafter, the door body 1 rotates around the pivot 6. When the door body 1 is rotated and one side is pulled out, the other side of the door body 1, that is, the side facing the rolling member 5, can be smoothly stored inside the furniture along the entrance/exit part 4' of the guide rail 4. The operation is extremely simple compared to the conventional structure in which the door is completely rotated and opened to extend the guide rail inside the furniture and then pushed into the furniture. Next, door body 1
When closing the door body 1 from the open state, that is, the state stored in the furniture 2, when the rolling member 5 slides on the straight part 4'' of the rail, it is very easy to pull out the door body 1, but Since the impact when the door is closed as it is is extremely large, in this case, when the rolling member 5 reaches the entrance/exit part 4' of the rail, the sliding speed is naturally reduced due to the arcuate rail shape of the entrance/exit part 4'. It is possible to reduce the impact when closing the door, and to convert the pulling force of the door body 1 toward the front of the furniture 2 into a rotational force in the closing direction of the door body 1, allowing smooth closing. The pin 8 comes into contact with the inner edge 9' of the front stile 9 of the top plate and can reliably prevent the door from jumping out in the forward direction.

[Brief explanation of the drawing]

Figure 1 is a perspective view showing the inner surface of the door body, Figure 2 is a cross-sectional view of the installed state, Figures 3, 4, and 5 are simplified plan views of the proposed device in its operating state. 4 shows the door in the closed state, FIG. 5 shows the door in the open state, and FIG. 6 is an enlarged sectional view showing the rotary support mounting structure. 1... Door body, 2... Furniture, 3... Rotating support body,
4... Guide rail, 5... Rolling member, 6... Pivot, 7... Pivot, 8... Operation regulating pin.

Claims (1)

[Scope of claim for utility model registration] A door opening/closing device in which a rolling member provided on one side of the door body is slidably fitted to a guide rail inside the furniture, so that the door body can be stored inside the furniture when opened. A rolling member 5 is provided at one end of the inner surface of the door body 1 protruding from the upper edge of the door body 1, and one side edge is attached to the furniture 2 near the other end.
Pivot 6 is located on the front edge of the top plate and bottom plate near the center of the main body.
The other end of the rotary support 3 is rotatably mounted on a pivot 7, and the mounting position of the rolling member 5 on the inner surface of the door body 1 and the rotation support 3 on the pivot 6 are An operation regulating pin 8 is provided at a predetermined position between the mounting positions so as to protrude from the upper edge of the door body 1 so as to be able to come into contact with the inner edge of the top plate front stile 9, and on the lower surface of the top plate corresponding to the rolling member 5, The rolling member 5 is slidably fitted to guide the door body 1 deep into the furniture 2 main body, and the entrance/exit part on the front side of the furniture 2 is smoothly continuous with the straight line part 4'' extending deep into the furniture 2 main body. 4′,
Rolling member 5 when the door body 1 rotates around the pivot 6
A door opening/closing device characterized in that a guide rail 4 is provided in an arc shape that matches the rotation locus of the door opening/closing device.