TW201817953A - Door opening-closing device and cabinet with the same - Google Patents

Abstract

An opening-closing device of a door includes an assembling member, an opening-closing member, a compression member, a cam slider, a tending member and an engaging mean. The assembling member at least has a back plate and two side plate portions bending from the back plate, and the assembling member is disposed on the main body side of a cabinet body. The opening-closing member at least has a mount plate portion disposed on the door and two side plates bending from the mount plate portion. Two side plates of the opening-closing member are disposed on the two side plate portions of the assembling member rotatably by a hinge shaft. The compression member is disposed on rotation position which uses the hinge shaft between the two side plates of the opening-closing member. The cam slider is sliding disposed in the assembling member and adjacent to the compression member. The tending member is disposed in the assembling member and used for extruding the cam slider toward the compression member. The engaging mean is disposed on the assembling member and releasably engaged with an engaging portion. The sliding position of the cam slider is varied by the rotation angle of the opening-closing member during the operation of opening and closing door.

Description

   Door opening and closing device and cabinet with the door opening and closing device   

The invention relates to a door opening and closing device and a cabinet provided with the door opening and closing device. The door opening and closing device is mainly used for assembling various cabinets collectively referred to as a lift-up door body, so that the above-mentioned various The cabinet is assembled by opening and closing.

In order to make it easy for a person housed in the cabinet to enter and exit the door opening and closing device of this type, it is expected that the general door body can stably stop and maintain the function of being opened upward for various cabinets. Therefore, as the door opening and closing device, for example, those disclosed in Patent Document 1 are well known. The door opening and closing device described in Japanese Patent Publication No. 2011-129154. The opening and closing device is assembled on both sides of the inside of the cabinet, and the arm or support is extended by the opening and closing device to support the door. Most other such door opening devices have similar structures.

The door opening and closing device described in Japanese Re-publication Patent Publication No. 2011-129154. The door opening and closing device itself protrudes from both sides of the inside of the cabinet and has arms that enter and exit the cabinet when the door is opened. Therefore, it is a problem to hinder the storage and storage of the cabinet, and it is also a problem that the function of keeping the door stably stopped at a predetermined opening angle of the door is not sufficient. In addition, it is used as a damper means when the door is closed, and other elastic members need to be used, which does not contribute to the structure.

Therefore, an object of the present invention is to provide a door opening device and various cabinets provided with the door opening device. The door opening device does not hinder the entry and exit of the contents stored in the cabinet. Moreover, the door body can be kept and stopped at a predetermined opening position more stably.

Another object of the present invention is to provide a door opening and closing device and various cabinets provided with the door opening and closing device. The door opening and closing device does not hinder the entrance and exit of the contents stored in the cabinet. The door body can be kept stably stopped at a predetermined opening position, and its structure can prevent the door body from closing suddenly when the door body is closed.

In order to achieve the above object, claim 1 of the present invention is a door opening device, which is arranged between the cabinet body and the door body, so that the door body is connected to the cabinet body in an openable manner, Its features include: an assembly member having at least a back plate and two side plate portions bent by the back plate and assembled on the side of the cabinet body; an opening member having at least an assembly plate portion assembled on the door body And the two side plates bent by the assembling plate portion, and the two side plates are rotatably assembled on the two side plates of the assembling member through a hinge shaft; the pressure member is assembled on the aforementioned opening member The aforementioned hinge axis between the plates on both sides is the pivoting position of the fulcrum; the cam slider, which is adjacent to the pressured member, is slidably assembled in the aforementioned assembly member; The member slides and is arranged in the assembly member; and the engaging means is arranged in the assembly member, and the cam slider is changed according to the rotation angle of the opening member of the opening operation of the door body. The sliding position of the cam slider can be detachably engaged with the engaging portion of the cam slider.

At this time, the feature of claim 2 of the present invention is that the trending means of the cam slider includes: a spring bearing member which is arranged in the assembly member to face the cam slider; and an elastic member, It elastically connects the spring bearing member and the cam slider.

Furthermore, the feature of claim 3 of the present invention is that the trending means of the aforementioned cam slider is composed of a plurality of elastic members, at least one of which is provided with elasticity adjusting means, and at least one of which is provided with fluid damping The two can be set at the same time or selectively.

Furthermore, the feature of claim 4 of the present invention is the maximum opening angle position of the opening and closing member by the engaging position of the engaging means and the engaging portion provided on the cam slider.

Furthermore, the feature of claim 5 of the present invention is that the aforementioned engaging means includes: an engaging box portion, which is fixed to the aforementioned assembly member; and an engaging slider, which is provided in the aforementioned manner in a movable manner. An engaging box portion; an engaging convex portion that can be engaged with the aforementioned engaging portion of the cam slider provided on the engaging slider; and an elastic member that causes the aforementioned engaging convex portion to tend toward The direction in and out from the engaging box.

Furthermore, the feature of claim 6 of the present invention is that a long guide hole is formed along the moving direction of the engaging box portion of the engaging means, and the engaging slider is assembled and penetrated through the foregoing. Guide pin that guides the long hole.

Furthermore, the feature of claim 7 of the present invention is that the assembly member includes: a metal plate box portion that houses the cam slider and the trending means inside; and an assembly side plate member that is assembled in Both sides of the box section.

Furthermore, the feature of claim 8 of this invention is that the said assembly member is integrally formed by synthetic resin.

The feature of claim 9 of the present invention is that a cover is assembled to the assembly member and / or the opening and closing member.

Furthermore, the feature of claim 10 of the present invention is that the aforementioned hinge shaft is configured in a bisecting manner.

Further, the feature of claim 11 of the present invention is that the pressure-receiving member is constituted by a rotary drum, and the pressure-receiving pin and the pressure-receiving pin are rotatably installed on the outer periphery of the pressure-receiving pin.

Furthermore, the feature of claim 12 of the present invention is that the pressure-receiving member is composed of a sheet metal member and includes a protruding portion that abuts against a cam portion of the cam slider.

Furthermore, the feature of claim 13 of the present invention is that, in the door opening device, a first cover is installed outside the assembly member, and a second cover is installed outside the opening member. .

Furthermore, the feature of claim 14 of the present invention is that, in various cabinets, the cabinet is connected to the cabinet in a manner that can be opened by the door opening device described in any one of claims 1 to 13. The main body and the aforementioned door body.

With the present invention having the above-mentioned structure, since the door opening and closing device does not protrude from the cabinet body, it can be under the storage object that does not obstruct the entrance and exit of the cabinet body. With the engaging means, even without using a support rod or arm, The door body can be stably maintained and stopped at a predetermined opening angle. In addition, a fluid damper can buffer the action so that the door body does not close suddenly from a predetermined closing angle.

1‧‧‧ cabinet

2‧‧‧ cabinet body

2a‧‧‧ opening

3‧‧‧ door body

4‧‧‧Door opening and closing device

5‧‧‧Assembly components

6‧‧‧Box

6a‧‧‧Back

6b‧‧‧ both sides

6c‧‧‧Holding board

6d‧‧‧ rear panel

6e‧‧‧Card

6f‧‧‧lock groove

6g‧‧‧Bottom bending piece

6h‧‧‧bearing hole

6i‧‧‧ positioning hole

6j, 6k, 6l‧‧‧Assembly holes

6m‧‧‧screw hole

6n‧‧‧ Bend Sheet

7‧‧‧Assembling side plate members

7a‧‧‧Detent

7b‧‧‧Side panel section

7c‧‧‧Assembly board

7d‧‧‧bearing hole

7e‧‧‧lock hole

7f, 7g ‧‧‧ hollow rivets

7h‧‧‧Assembly hole

8‧‧‧Opening member

8a‧‧‧Assembly board

8b‧‧‧ both sides

8c‧‧‧ rear panel

8d‧‧‧bearing hole

8e‧‧‧lock hole

8f‧‧‧Support hole

9‧‧‧ hinge shaft

9a‧‧‧Deformation Department

10‧‧‧bearing components

11‧‧‧ Collar

12‧‧‧Pressed member

12a‧‧‧Pressed Pin

12b‧‧‧rotating drum

12c‧‧‧bearing member

13‧‧‧Pressed member

14‧‧‧ cam slider

14a‧‧‧Cam

14b‧‧‧Storage hole

14c‧‧‧ both sides

14e‧‧‧ both sides

14f‧‧‧ recess

15‧‧‧ Engagement Department

15a‧‧‧ convex

15b‧‧‧ recess

16‧‧‧ trending means

17‧‧‧ spring bearing member

17a‧‧‧Storage hole

18‧‧‧ Elastic member

18a‧‧‧small-diameter elastic member

19‧‧‧ Fluid Damper

19a‧‧‧Damper box

19b‧‧‧Piston rod

19c‧‧‧ flange

20‧‧‧ Elasticity adjustment means

20a‧‧‧Bearing Department

20b‧‧‧Adjustment screw

20c‧‧‧nut

21‧‧‧first cover

21a‧‧‧Locking member

22‧‧‧second cover

22a‧‧‧Stopper

25‧‧‧ engagement means

25a‧‧‧Snap Box Division

25b‧‧‧ engagement projection

25c‧‧‧ snap slider

25d‧‧‧Inner upper end wall

25e‧‧‧Compression coil spring

25f‧‧‧Assembly piece

25g‧‧‧Guide slot

25h‧‧‧Assembly hole

25i‧‧‧Assembly

25j‧‧‧ positioning protrusion

26‧‧‧Guide Pin

A‧‧‧ Airliner

a‧‧‧seat

FIG. 1 is an explanatory diagram showing an example of a door opening and closing device using the door opening and closing device of the present invention on a hand luggage storage cabinet on an airplane seat, for example.

FIG. 2 is an external perspective view of an embodiment of the door opening and closing device of the present invention.

FIG. 3 is a top view of the door opening and closing device shown in FIG. 2.

Fig. 4 shows the door opening and closing device shown in Fig. 2. Fig. 4 (a) is a cross-sectional view taken along line AA in Fig. 3, and Fig. 4 (b) is a cross-sectional view taken along line BB in Fig. 3. 4 (c) is a sectional view taken along line CC in FIG. 3, FIG. 4 (d) is a sectional view taken along line DD in FIG. 3, and FIG. 4 (e) is a sectional view taken along line EE in FIG.

5 is an exploded top view of the door opening and closing device shown in FIG. 2.

Fig. 6 shows the box part of the assembly member of the door opening device shown in Fig. 2. Fig. 6 (a) is a perspective view viewed from the inside, Fig. 6 (b) is a bottom view viewed from the inside, and Fig. 6 ( c) is a side sectional view thereof, and FIG. 6 (d) is a front view thereof.

FIG. 7 shows a cam slider of the door opening and closing device shown in FIG. 2. FIG. 7 (a) is a perspective view thereof, and FIG. 7 (b) is a right side view thereof.

FIG. 8 shows the engaging means in the door opening and closing device shown in FIG. 2. FIG. 8 (a) is an external perspective view of the door viewed obliquely from below, and FIG. 8 (b) is an exploded perspective view thereof.

9 is a right side view of a second damper in the door opening and closing device shown in FIG. 2.

FIG. 10 is an explanatory diagram illustrating the actions of the fluid damper and the engaging means of the door opening device shown in FIG. 2 according to the opening angle of the door. FIG. 10 (a) shows that the door is closed to the cabinet body. Fig. 10 (b) shows the state where the door body is opened to 45 ° to the cabinet body.

FIG. 11 is an explanatory diagram illustrating each action of the fluid damper and the engaging means of the door opening device shown in FIG. 2 according to the opening angle of the door, which shows that the door is opened to the cabinet body to 90 ° status.

The following describes a preferred embodiment of the present invention, for example, when it is used in a cabinet provided on a seat of a passenger aircraft for storing hand luggage. For cabinets of other machines (such as photocopiers).

FIG. 1 shows a door body opening device 4 of the present invention shown in each of the embodiments described below, using the cabinet body 2 and door of the cabinet 1 on the seats a, a, ... of the passenger aircraft A An explanatory diagram when the bodies 3 are in between. The door opening and closing device 4 generally uses a pair of the same configuration, but only one of them will be described in the following description.

[Example 1]

2 to 9 show a first embodiment of a door opening device 4 according to the present invention. According to the drawings, the door opening device 4 is a door body 3 connected to the cabinet body 2 in an openable manner, and includes: an assembly member 5 that is assembled on the cabinet body 2 side; The cymbal member 8 is assembled to the door body 3, and is rotatably assembled to the assembly member 5 by the hinge shaft 9; the pressure member 12 is assembled between the two side plates 8b, 8b of the split member 8 The aforementioned hinge shaft 9 is a rotation position of the fulcrum; the cam slider 14 is connected to the pressure-receiving member 12 and is slidably assembled in the assembly member 5; the trending member 16 is used for the cam slider 14 is disposed in the assembly member 5 by being pressed toward the pressure-receiving member 12 side; and engaging means 25 and 25 are provided in the assembly member 5 and are viewed as opening members according to the opening operation of the door 3 The sliding position of the cam slider 14 that is changed by a rotation angle of 8 is detachably engaged with the engaging portions 15 and 15 provided on the cam slider 14. This is explained in detail below.

Cabinet 1, as shown in Figure 1, is a portable luggage storage device provided on the seats a, a, ... in the passenger aircraft A, including: cabinet body 2, which is open at the front The door-like enclosure 3 and the door body 3 are assembled at the opening 2a of the cabinet body 2 by the door opening device 4 of the present invention in such a manner that it can be opened upward. The cabinet 1 is only an example, and it also widely includes other furniture and office users, and also includes the case where the cabinet is used as the device body of the photocopier.

The door body 3 is in a curved shape when viewed from the side, but its shape and structure can be deformed depending on the purpose of the cabinet 1 and is not limited to those in the embodiment. It is a flat plate or a photocopier. The door body 3 becomes an original cover.

Hereinafter, Embodiment 1 will be described in detail with reference to FIGS. 2 to 9. The assembly member 5 is an example of a metal plate made of SUS, such as SUS, which is made by press working. It is composed of a box portion 6 and a pair of assembly side plates for assembling the box portion 6 to the cabinet body 2. The members 7, 7 are composed. In addition to the back plate 6a and the side plates 6b, 6b, the box portion 6 also has a pair of holding plates 6c, 6c formed by bending the side plates 6b, 6b inward, and bent by the back plate 6a. Although the rear panel 6d is folded, although not fully shown, the two sides of the rear panel 6d are provided with protruding locking pieces 6e, 6e (only one of which is described), so that the locking pieces 6e, 6e are locked at Locking grooves 6f and 6f (only one of which is described) provided on the side plates 6b and 6b. A bottom bent piece 6g is provided from the lower end portion of the rear plate 6d toward the holding plates 6c and 6c. Furthermore, bearing holes 6h, 6h, 7d, and 7d common to the shaft center are provided on both side plates 6b and 6b of the box portion 6 and the side plate portions 7b and 7b of the assembling side plate members 7,7. The side plates are provided with bent pieces 6n, 6n, and are fixed by hollow rivets 7f, 7f passing through the assembly holes 6k, 6k provided at the rear of the two side plates 6b, 6b.

A pair of assembled side plate members 7 and 7 includes locking portions 7a, 7a, side plate portions 7b, 7b, and assembly plate portions 7c, 7c, so that the locking portions 7a, 7a are locked at the corners of the back plate 6a of the box portion 6. Part, the hollow rivets 7g, 7g penetrate the assembly holes 7h, 7h provided in the left-right direction of the side plate parts 7b, 7b. 7h, 7h, and assembly holes 6j, 6j provided with the side plates 6b, 6b of the box portion 6. 6j and 6j are assembled to the both side plates 6b and 6b of the box portion 6. The assembly plate portions 7c and 7c are assembled on the cabinet body 2 with assembly screws (not shown). The side plate portions 7b and 7b are provided with a plurality of locking holes 7e and 7e for fixing them to a first cover 21 described later. 7e, 7e.

In addition, the material of the box portion 6 of the assembly member 5 and the assembly side plate members 7 and 7 are made of, for example, a metal plate such as SUS, which is press-processed, and thus has the above-mentioned structure. , It is not necessary to divide the box portion 6 and the assembly side plate members 7 and 7 into different members. Can be made in one piece. In this case, it is not necessary to assemble the side plate members 7, 7, and the hanging two side plates are provided from the back plate, and the assembling plate portion and the holding plate portion are simultaneously formed by the two side plates. Therefore, in the present invention, both the side plates 6b, 6b of the box portion 6 and the side plate portions 7b, 7b of the assembled side plate members 7, 7 are referred to as a side plate portion.

Next, the opening and closing member 8 is an example, which is a metal plate made of SUS or the like made by press working. Therefore, the assembly plate 8a is assembled from the door body 3, and the two side plates 8b are stood up from both sides of the assembly plate 8a. , 8b, and a plate 8c formed by bending the assembly plate 8a upward. On both side plates 8b and 8b, bearing holes 8d and 8d of the hinge shaft 9 in common with the center of the shaft and support holes 8f and 8f supporting the pressure pin 12a of the pressure-receiving member 12 are provided, and on both side plates 8b and 8b, There are locking holes 8e, 8e for locking pieces 22a, 22a,... Of the second cover 22.

The opening and closing member 8 is rotatably connected to both side plates 6b and 6b of the box portion 6 of the assembling member 5 and the side plate portions of the assembling side plate members 7 and 7 by a hinge shaft 9. 7b, 7b. That is, the hinge shaft 9 penetrates the box portion 6 provided in the assembly member 5 and each of the bearing holes 8d, 8d of the assembly side plate members 7, 7 so as to be rotatably connected to the assembly member 5. The component symbols 10 and 10 shown in FIG. 5 are bearing components with anti-rotation functions assembled in the bearing holes 6h, 6h and 7d, 7d, 8d, and 8d, and the component symbols next to the bearing components 10, 10 The one shown at 11 is a collar for filling the gap between the two side plates 8b and 8b of the split member 8 and the two side plates 6b and 6b of the box portion 6 of the assembly member 5 as shown in FIG. 4 (d). .

In addition, the bearing hole 7d provided in one of the assembly side plate members 7, 7 is deformed, and a deformed portion 9a provided in one end portion of the engaging hinge shaft 9 is inserted in the deformed portion. The pressure-receiving member 12 is a pressure-receiving pin 12a supported by support holes 8f and 8f provided on both side plates 8b and 8b of the opening and closing member 8 and a cylindrical rotary drum assembled with the pressure-receiving pin 12a. 12b. As shown in FIG. 5 in particular, those shown by element symbols 12c and 12c are bearing members having a rotation prevention function of the pressure pin 12a. The pressure receiving member 12 is connected to the cam portion 14 a of the cam slider 14. The pressure-receiving member 12 may be composed of only pressure-receiving pins, or may be a sheet-metal member having convex portions fixed to both side plates 8b and 8b as described later.

The cam slider 14 rotates with the hinge shaft 9 as a fulcrum when the split member 8 rotates with the hinge shaft 9 as a fulcrum, so that the cam slider 14 slides in the longitudinal direction against the elastic force of the elastic member 18. The cam slider 14 is provided with a cam portion 14a and three receiving holes 14b, 14b, and 14b on the opposite side to receive a part of an elastic member described later. The cam slider 14 is further provided with protruding portions 15 and 15 constituting the engaging means 25 and 25 on both side portions 14 c and 14 c of the cam portion 14 a side. The protruding portions 15 a and 15 a and the recessed portions are provided. 15b, 15b. On both side portions 14e and 14e of the cam slider 14, recessed portions 14f and 14f that accommodate one of the assembly pieces 25f and 25f described later are provided.

On the side of the rear plate 6d of the box portion 6, a spring bearing member 17 containing the trending means 16 constituting the cam slider 14 is housed. The spring bearing member 17 is provided with three accommodation loading holes 17a, 17a, and 17a. Between the members 14, the two end portions are respectively housed in the accommodation holes 14b, 14b, 14b and 17a, 17a, 17a, and elastic members 18, 18, 18 composed of three compression coil springs are elastically provided, and the cam slider 14 is pressed toward the pressure-receiving member 13 side. Thereby, the spring bearing member 17 and the elastic member 18 constitute the trending means 16 of the cam slider 14. When the assembly member 5 is integrally molded with synthetic resin, the spring bearing member 17 is integrally molded with the assembly member 5. Furthermore, the middle elastic member 18 has a double-layered structure of the large-diameter elastic member 18 and the small-diameter elastic member 18a.

Furthermore, a fluid damper 19 is housed in one of the elastic members 18, 18, and 18, and an elastic force adjusting means 20 is provided in the other elastic member 18. The fluid damper 19 has its flange portion 19c held by one end portion of one of the elastic members 18 and 18a, and the elasticity adjusting means 20 has a seat portion 20a receiving one end portion of the elastic member 18 and a screw. The adjusting screw 20b and the nut 20c are engaged with the screw hole 6m provided in the board 6d after receiving the seat portion 20a.

The assembly member 5 is covered by the first cover 21 covering the assembly member 5 from above, and the second cover 22 is also assembled to the slit member 8. The assembling means for assembling the first cover body 21 and the second cover body 22 to the assembling member 5 and the opening and closing member 8 is constituted as follows: each provided on the inside of the first cover body 21 and the second cover body 22, respectively. The locking members 21a, 21a, ... and 22a, 22a, ...; and the locking holes for locking the respective locking members 21a, 21a, ... and 22a, 22a, ... 7e, 7e ..., and each locking hole 8e, 8e, ..., each locking hole 7e, 7e ... are provided on both side plate portions 7b, 7b of the assembly side plate members 7, 7 of the assembly member 5 Each of the locking holes 8e, 8e,... Is provided on both side plate portions 8b, 8b,... Of the split member 8.

As described above, the engaging means 25 for stopping the door body 3 at a predetermined opening angle is composed of the following: The engaging portions 15 and 15 are formed by two portions provided on the cam portion 14a side of the cam slider 14. The convex portions 15a, 15a and the concave portions 15b, 15b are formed on the side; the engaging box portion 25a has an opening portion below, and has assembly pieces 25f and 25f at the front and rear. The assembly pieces 25f and 25f are assembled to the assembly member 5. Inside of both side plates 6b, 6b of the box portion 6; an engaging slider 25c, which is slidably received in the engaging box portion 25a, and has an engaging convex portion 25b at the front end; and a compression coil spring 25e It is elastically provided between the engaging slider 25c and the inner upper end wall 25d of the engaging box portion 25a; and a guide long hole 25g is provided in the abdomen of the engaging slider 25c and penetrates the guide long hole A guide pin 26 of 25 g is assembled to the engaging box portion 25 a. Furthermore, positioning protrusions 25j are provided on the abdomen of the engaging box portion 25a, and the positioning protrusions 25j are inserted into positioning holes 6i and 6i provided on both side plates 6b and 6b of the box portion 6. Other component symbols 25h and 25h are assembling holes, and the assembling holes 6l and 6l provided on the two side plates 6b and 6b of the box portion 6 are assembled by using the assembling pieces 25i and 25i. In this way, the engaging means 25 and 25 are assembled on both sides of the open end side of the box portion 6.

Next, effects will be described. When the door body 3 is closed to the cabinet body 2, as shown in FIG. 4 (a), FIG. 4 (b) and FIG. 10 (a), the cam slider 14 in the box portion 6 of the assembly member 5 , Will be pressed by the pressure member 13 on the side of the split member 8 to resist the resistance of the elastic members 18, 18, 18, and back to the right position in the figure. At this position, the piston rod 19b of the fluid damper 19 is sucked into the damper box 19a as shown in Figs. 4 (b) and 10 (a), and the door body 3 is kept closed by its own weight. status.

If the door body 3 is opened upward by hand from this closed state, the closed state member 8 will rotate clockwise in the figure with the hinge shaft 9 as a fulcrum. In this way, the cam slider 14 presses the pressured member 13 due to the elastic force of the elastic members 18, 18, 18, and the opening and closing member receives a tendency to rotate in a clockwise direction. Therefore, the door body 3 can be light without feeling the original weight. The operating force opens upward. FIG. 10 (b) shows a state where the door body 3 is opened to 45 °.

As the opening and closing member 8 rotates in a clockwise direction, the cam slider 14 squeezed by the elastic members 18, 18, 18 slides under the pressure receiving member 13 and forwards to the left in the figure. Based on the predetermined rotation angle of the opening and closing member 8, when the engaging slider 25c of the engaging means 25 passes over the convex portions 15a and 15a of the engaging portions 15, 15, it is in an engaged state falling into the concave portions 15b and 15b. In this way, from this opening angle, even if the door body 3 is subjected to a turning force in the closing direction, the engaging convex portions 25b and 25b will receive resistance beyond the concave portions 15b and 15b, so the door body 3 can be stopped and held at the opening angle in a stable manner. . The stable stopping and holding angle of the door body 3 is 90 ° as shown in the embodiment, but it is not limited to this opening angle. By changing the engaging slides 25c and 25c of the engaging means 25 and the cam slide, The positions of the recessed portions 15b and 15b of the engaging portions 15 and 15 provided in the member 14 can be arbitrarily adjusted.

When the door body 3 is closed in this opened state, the door body 3 is pulled downwards by hand, and the door body 3 and the opening and closing member 8 rotate together in the counterclockwise direction, and the pressure member 13 moves the cam slider 14 toward the figure. The middle right rear is squeezed, so that the engagement between the engaging sliders 25c and 25c of the engaging means 25 and the recessed portions 15b and 15b of the engaging portions 15 and 15 is released. It suffers resistance, but it can be closed as long as it is pressed down slightly. If the predetermined closing angle is reached, the piston rod 19b of the fluid damper 19 will abut the cam slider 14, and the damper effect starts to take effect. The closing force accompanying the closing motion suddenly weakens, and can be closed quietly. Those who display this state are shown in Figs. 4 and 10 (a).

The elastic force of the trending means 16 is adjusted by the elasticity adjusting means 20. That is, if the adjustment screw 20b is rotated in either of the right and left directions, the seat portion 20a will move in the axial direction of the adjustment screw 20b, so the elastic force of the elastic member 18 is adjusted, and the overall elastic force of the trending means 16 can be adjusted.

As another implementation force, although omitted from the drawing, the side plates 6b and 6b on the side of the box portion 6 and the side plate portions 7b and 7b of the assembled side plate members 7 and 7 may be connected so that the hinge shaft 9 is bisected. The structure of each side plate 8b, 8b of the member 8. In addition, similarly, although omitted from the drawings, the pressure-receiving member 13 may be formed by assembling a convex member formed by sheet metal processing between the two side plates 8 b of the split member 8.

The present invention is composed of the above. Therefore, it is used for opening and closing the door body of the cabinet body. The engaging part provided with the cam slider is provided by the engaging means provided inside the assembly member. Because it is configured by the sliding position of the cam slider, it does not hinder the entry and exit of luggage, and it is small and does not take up space, so it can be applied to a door opening device with a simple structure.

Claims (14)

    The utility model relates to a door opening device, which is arranged between a cabinet body and a door body, so that the door body is connected to the cabinet body in an openable manner, and comprises: an assembly member having at least a back plate And two side plate portions bent by the back plate and assembled on the side of the cabinet body; an opening and closing member having at least an assembly plate portion assembled on the door body and two side plates bent by the assembly plate portion And assemble the two side plates on the two side plate portions of the assembly member in a rotatable manner through a hinge shaft; a pressure member is assembled on the hinge shaft between the two side plates with the opening and closing member as Rotating position of the fulcrum; a cam slider that is adjacent to the pressured member and is slidably assembled in the assembly member; a trending member that is used to move the cam slider to the pressured member side It is provided in the assembly member by squeezing; and an engaging means is provided in the assembly member, which changes in the cam slider according to the rotation angle of the opening member of the opening operation of the door body. Sliding position And as to the detachment of the card can be engaged with the engaging portion provided in the ramp member.         The door opening and closing device according to item 1 of the scope of the patent application, wherein the approaching means of the cam slider includes: a spring bearing member which is arranged in the assembly member to face the cam slider; And an elastic member, which elastically connects the spring bearing member and the cam slider.         The door opening and closing device according to item 1 of the scope of patent application, wherein the approaching means of the cam slider is composed of a plurality of elastic members, at least one of which is provided with elasticity adjusting means, and at least the other One is provided with a fluid damper, both of which can be provided simultaneously or selectively.         The door opening device according to item 1 of the scope of patent application, wherein the engagement position between the engaging means and the engaging portion provided on the cam slider is the maximum opening angle position of the opening member.         The door opening and closing device according to item 1 of the scope of patent application, wherein the aforementioned engaging means includes: an engaging box portion which is fixed to the aforementioned assembly member; and an engaging sliding member which is capable of being raised and lowered. Is provided on the engaging box portion; an engaging convex portion that can be engaged on the engaging portion of the cam slider provided on the engaging slider; and an elastic member that enables the engaging portion The engaging convex portion tends to go in and out from the aforementioned engaging box portion.         The door opening device according to item 5 of the scope of patent application, wherein a long guide hole is formed along the moving direction of the engaging box portion of the aforementioned engaging means, and A guide pin penetrating the guide slot is assembled.         The door opening and closing device according to item 1 of the scope of patent application, wherein the aforementioned assembly member includes: a metal plate box part which houses the cam slider and the aforementioned trending means inside; and an assembly side panel member It is assembled on both sides of the box.         The door opening and closing device according to item 1 of the scope of patent application, wherein the two assembly members are formed by integrally molding a synthetic resin.         The door opening and closing device according to item 1 of the scope of patent application, wherein a cover is assembled to the assembly member and / or the opening and closing member.         The door opening and closing device according to item 1 of the scope of patent application, wherein the aforementioned hinge shaft is configured in a bisecting manner.         The door opening device according to item 1 of the patent application range, wherein the pressure-receiving member is constituted by a rotary drum, and the pressure-receiving pin is rotatably installed on the outer periphery of the pressure-receiving pin.         The door opening device according to item 1 of the patent application scope, wherein the pressure-receiving member is composed of a sheet metal member and includes a protruding portion that abuts against a cam portion of the cam slider.         The door opening device according to item 1 of the scope of the patent application, wherein a first cover is installed outside the assembly member, and a second cover is installed outside the opening member.         A cabinet body is connected with the cabinet body and the door body in an openable manner by the door body opening device according to any one of claims 1 to 13 of the scope of patent application.