TWI642837B - Door switch device - Google Patents

Abstract

A door opening and closing device is provided for causing a predetermined movement of the door without using a hinge that limits the door, and on the one hand, the door is taken out to the front of the frame, and on the other hand, the door is opened.

A door switch device according to the present invention includes: a switch device body mounted on a frame; a fixture mounted on the door; and an arm portion rotatably disposed on the switch device body and via the fixture And the door is given a force in at least one direction of the door opening direction and the door closing direction; the slider is slidably disposed in a direction to the switch device body; and the potential energy means is provided, and the potential energy is imparted to the slider in one direction; a mechanism that imparts the potential of the potential energy means to the arm; and a door limiting link for causing the door to perform a predetermined movement, and being rotatably positioned away from the center of rotation of the arm Attached to the arm and rotatably coupled to the fixture and slidably coupled to the switchgear body.

Description

Door switch device

The present invention relates to a door opening and closing device for easily performing a switching operation of a door.

A door opening and closing device shown in Fig. 16 has been proposed as a door opening and closing device for easily opening and closing a door (see Patent Document 1). As shown in FIG. 14, the door 2 is rotatably coupled to the frame 1 via a hinge 3 about a horizontal axis. As the opening angle of the door 2 is closer to 90 degrees, the torque generated by the weight of the door 2 is also larger, so that in order to open the door 2, more force is required. The door opening and closing device 4 exerts a force for assisting the switching operation of the door 2 in order to easily perform a door opening and closing operation by a human hand.

The door opening and closing device 4 includes a switch device body 5 attached to the casing 1 and an arm portion 6 rotatably provided to the switch device body 5. An arm slider 7 is slidably provided in the longitudinal direction of the arm portion 6 at the front end of the arm portion 6. The arm slider 7 is rotatably coupled to the door 2. A slider crank mechanism (not shown) that exerts a force for assisting the switching operation of the door 2 is provided inside the switch device body 5. The force for assisting the switching operation of the door 2 is transmitted from the slider crank mechanism to the arm portion 6.

[Previous Technical Literature] [Patent Literature]

Patent Document 1: International Publication No. 2010/097996

However, in the conventional door opening and closing device, in addition to the door opening and closing device 4, a hinge 3 for restricting the door 2 is required to cause the door 2 to perform a predetermined movement. Since both the door opening and closing device 4 and the hinge 3 need to be attached to the casing 1 and the door 2, there is a problem that the installation work is complicated.

Accordingly, it is an object of the present invention to provide a door opening and closing device that can provide a hinge for a predetermined movement of a door without restricting the door in a door opening and closing device that imparts a force in a door opening direction and/or a door closing direction toward the door.

In order to solve the above problems, the present invention is a door switch device comprising: a switch device body mounted on a frame; a fixture mounted on the door; and an arm portion rotatably disposed on the switch a device body, wherein the door is provided with a force in at least one of a door opening direction and a door closing direction via the fixing device; the slider is slidably disposed in the one direction to the switch device body; and the potential energy means is oriented The one direction imparts potential energy to the slider; the transmission mechanism transmits the potential giving capability of the potential energy imparting means to the arm; and the door limiting link is configured to cause the door to perform a predetermined movement while leaving the arm a position of a rotation center of the portion rotatably coupled to the arm portion, and rotatably coupled to the fixture, and slidably coupled to the switch device body or the slider Or being connected to the switch device body or the slider via an auxiliary link, and from the axis direction of the rotating shaft of the arm portion Police, the door linkage with the slider to limit overlap.

According to a preferred aspect of the present invention, the switch device body is provided with a shaft, and the slider and the door restricting link are provided with a long hole through which the shaft enters.

According to a preferred aspect of the present invention, a recessed portion is formed on a side surface of the slider, and the door restricting link is housed in the recessed portion of the slider.

According to a preferred aspect of the present invention, the potential energy applying means is one or more coil springs, and the slider is formed when the slider is viewed in a cross section orthogonal to the one direction. The lateral width of the portion of the recess is smaller than the outer diameter of at least one of the coil springs.

According to a preferred aspect of the present invention, the door switch device further includes a telescopic damper that moves the shaft portion in the one direction with respect to the main body portion, the main body portion and the shaft portion Either the second arm portion is in contact with the arm portion, and the other of the main body portion and the shaft portion is in contact with the slider.

According to a preferred aspect of the present invention, the transmission mechanism is a cam provided on the slider, and the arm is provided with a roller that comes into contact with the cam.

The door is a flap door that is rotatable about a horizontal axis, and the switch device body is attached to a side plate of the frame, and the fixture is attached to the wing door. On the back.

According to the present invention, since the door opening and closing device is provided with the door limiting link for restricting the door to perform the predetermined movement, the door switching device does not need to be provided. Set the hinge. Further, the door restricting link is rotatably coupled to the arm at a position away from the center of rotation of the arm, so that when the door is opened, the door restricting link moves toward the front of the frame as the arm rotates. Therefore, on the one hand, the door can be taken out toward the front of the frame to open the door. The door can be prevented from interfering with the frame by removing the door on the one hand and opening the door on the one hand. Further, since the door restricting link system and the slider are overlapped from the axial direction of the rotating shaft of the arm portion, the degree of freedom in arrangement of the door restricting link and the slider can be improved. Even if the door restricting link is rotated on the one hand, it moves in the front-rear direction, and even if the slider is increased in size to obtain a large potential, the door switch device can be prevented from being enlarged.

According to a preferred aspect of the present invention, the shaft is disposed on the main body of the switchgear, thereby preventing the shaft from being shaken, and the operation of the door guide shaft to be restrained by the shaft is stabilized. Further, since the slider is provided with a long hole into which the shaft enters, even if the slider is increased in size to obtain a large potential giving capability, the size of the door opening and closing device can be prevented from increasing.

According to a preferred aspect of the present invention, the recessed portion is provided on the side surface of the slider, and the door restricting link is housed in the recessed portion of the slider, thereby preventing the door opening and closing device from being enlarged in the thickness direction.

According to a preferred aspect of the present invention, the potential energy means is a coil spring, and when the slider is viewed in a cross section orthogonal to one direction, the lateral width of the portion of the slider formed with the concave portion is smaller than the outer diameter of the coil spring. It is small, so that even if the diameter of the coil spring is increased to obtain a large potential, the width of the slider can be reduced.

According to a preferred aspect of the present invention, a telescopic damper for moving the shaft portion in a direction relative to the main body portion is provided between the arm portion and the slider, so that the rotation of the arm portion and the direction of one of the sliders can be utilized. Sliding pair telescopic shock absorbers are compressed. Therefore, a large damping force can be generated.

According to a preferred aspect of the present invention, the transmission mechanism is disposed on the cam of the slider, and the arm is provided with the roller that contacts the cam, so that the potential imparting ability of the potential energy means can be stably transmitted to the arm.

According to a preferred aspect of the present invention, the door system can rotate the wing door about the horizontal axis, and the switch device body is mounted on the side plate of the frame body, and the fixture is mounted on the back side of the wing door, so that the door can be opened with a small force. A wing door that rotates about a horizontal axis. In addition, the wing door can be stopped at any position.

1‧‧‧ frame

2‧‧‧

3‧‧‧ Hinges

4‧‧‧Door switchgear

5‧‧‧Switch unit

6‧‧‧ Arms

7‧‧‧Band slider

11‧‧‧ frame

11a‧‧‧ inside

12‧‧‧

13‧‧‧ Fixtures

13a‧‧‧ bottom wall

13a1‧‧‧ screw hole

13b‧‧‧ Sidewall

14‧‧‧ Arms

14a‧‧‧Link board

14b‧‧‧arm body

14c‧‧‧Band slider

14c1‧‧‧Protruding

15‧‧‧door limit link

15a‧‧‧ long hole

15b‧‧‧ base

15c‧‧‧ front end

18‧‧‧Coil spring

20‧‧‧Door switchgear

21‧‧‧ housing

21a, 21b‧‧‧ shell half

21a1‧‧‧ Guide wall

22‧‧‧First axis

23‧‧‧Decorative cover

24‧‧‧Power to give the connecting rod

25‧‧‧ Sixth axis

25a‧‧‧First slider rotation axis

25b‧‧‧Second slider rotation axis

27‧‧‧ Slider

27a‧‧‧Protrusion

27b‧‧‧ recess

27c‧‧‧ long hole

31‧‧‧Friction adjustment plate

32‧‧‧second axis

33‧‧‧ Third axis

34‧‧‧Axis insertion plate

35‧‧‧fourth axis

36‧‧‧ Position adjustment screw

38‧‧‧ fifth axis

41‧‧‧ Spring support

42‧‧ ‧ sales

43‧‧‧ Shock absorbers

44‧‧‧movable department

50‧‧‧Door switchgear

51‧‧‧Auxiliary connecting rod

52‧‧‧door limit link

60‧‧‧ door switchgear

61‧‧‧ frame

61a‧‧‧ side panels

62‧‧‧

63‧‧‧ bolt

64‧‧‧Shell

64a, 64b‧‧‧ shell half

65‧‧‧ Fixtures

65a‧‧‧shims

65b‧‧‧ fixture body

66‧‧‧arms

66a‧‧‧arm body

66b‧‧‧Roller

66c‧‧‧Band slider

67‧‧‧door limit link

67a‧‧‧ long hole in the door limiting link

68‧‧‧Decorative cover

69‧‧‧Axis

70‧‧‧ cam

70a‧‧‧ cam surface

71‧‧‧ Slider

71a, 71b‧‧‧ long hole of the slider

71c‧‧‧The recess of the slider

72a~72c‧‧‧Helical spring

73, 74‧‧‧ axis

75a, 75b‧‧‧ axis

76‧‧‧arm shaft

78‧‧‧ Spring support

79‧‧‧Axis

80‧‧‧Location adjustment agency

81‧‧‧Spring inner diameter guide

83‧‧‧Adjustment screw

84‧‧‧ Shock absorbers

84a‧‧‧ (shock absorber) body

84b‧‧‧ (shock absorber) shaft

85‧‧‧Auxiliary connecting rod

C1, C2‧‧‧ chain

A~f‧‧‧ connecting rod

S1‧‧‧Slider crank mechanism

Fig. 1 is a perspective view of a door opening and closing device according to a first embodiment of the present invention.

Fig. 2 is a side view of the door opening and closing device of the first embodiment.

Fig. 3 is a vertical sectional view of the door opening and closing device of the first embodiment (a vertical sectional view parallel to the side plate of the casing).

Fig. 4 is an exploded perspective view showing the door opening and closing device of the first embodiment;

Figure 5 is a cross-sectional view taken along line V-V of Figure 2 .

Fig. 6 is a schematic view showing the mechanism of the door opening and closing device of the first embodiment.

Fig. 7 is a view showing the operation of the door opening and closing device of the first embodiment (Fig. 7(a) shows the fully closed state of the door, Fig. 7(b) shows the state where the door is opened about 30 degrees, and Fig. 7(c) shows the door about. Open the state of 60 degrees, Figure 7 (d) shows the fully open state of the door).

Fig. 8 is a perspective view of a door opening and closing device according to a second embodiment of the present invention.

Fig. 9 is a vertical sectional view of the door opening and closing device of the second embodiment (a vertical sectional view parallel to the side plate of the casing).

Figure 10 is a perspective view of a door opening and closing device according to a third embodiment of the present invention.

Figure 11 is a side view of the door opening and closing device of the third embodiment.

Fig. 12 is an exploded perspective view showing the door opening and closing device of the third embodiment.

Fig. 13 is a view showing the operation of the slider crank mechanism of the door opening and closing device of the third embodiment (Fig. 13(a) shows the state in which the door is opened, and Fig. 13(b) shows the state in which the slider crank mechanism reaches the dead point, Fig. 13 (c) shows the state of the door closed).

Fig. 14 is a graph showing the relationship between the opening angle of the arm portion and the moment acting on the arm portion.

Fig. 15 is a side view of the door opening and closing device according to the fourth embodiment of the present invention (Fig. 15(a) shows a state in which the door is closed, and Fig. 15(b) shows a state in which the door is opened at a predetermined angle or more, and Fig. 15(c) shows The state of the door is open).

Figure 16 is a perspective view of a conventional door opening and closing device.

Hereinafter, a door opening and closing device according to a first embodiment of the present invention will be described in detail with reference to the accompanying drawings. 1 is a perspective view showing a door opening and closing device 60 attached to a frame 61 and a door 62. A casing 64 as a main body of the switchgear is attached to the inner surface of the side plate 61a of the casing 61 by a locking means such as a bolt 63. In order to stabilize the switch of the door 62, the door opening and closing device 60 is provided on each inner surface of the left and right side plates 61a of the casing 61. Door 62 is a wing door that is rotatable about a horizontal axis. A fixture 65 is attached to the back of the door 62.

An arm portion 66 and a door restriction link 67 are disposed between the housing 64 and the fixture 65. The arm portion 66 serves to assist the person's hand in switching the door 62. The door restriction link 67 restricts the door 62 to cause the door 62 to perform a predetermined movement. Since the door 62 is restricted by the door restriction link 67, the hinge of the restriction door 62 is not provided except for the door opening and closing device 60. The housing 64 is covered by a trim cover 68.

2 shows the inside of the door opening and closing device 60 in a state where the door 62 is closed. Department structure. An arm portion 66 is rotatably provided around the arm shaft 76 in the housing 64. The arm portion 66 includes an elongated arm main body 66a formed in a substantially L shape and facing downward from the arm shaft 76, a drum 66b provided at a corner portion of the L-shape, and an arm portion slip provided at a front end of the arm main body 66a. Block 66c.

As shown in the cross-sectional view of Fig. 3, the drum 66b is in rolling contact with the cam 70 as a transmission mechanism. The cam 70 is provided to the slider 71 so as to linearly move together with the slider 71. The slider 71 is provided with potential energy in one direction by the coil springs 72a to 72c which are means for imparting potential energy. The coil springs 72a to 72c are composed of large diameter coil springs 72a and 72c and small diameter coil springs 72b. The cam 70 transmits the imparting ability of the coil springs 72a to 72c to the arm portion 66. A cam-shaped cam surface 70a is formed on the cam 70 for changing the direction of the moment applied to the arm portion 66.

The arm portion slider 66c is rotatable relative to the arm body 66a via the shaft 69, and is slidable in the vertical direction with respect to the fixture 65. As shown in FIG. 2, a door restricting link 67 is rotatably coupled to the arm main body 66a via a shaft 73 at a position away from the arm shaft 76. One end of the door restricting link 67 is rotatably coupled to the fixture 65 via a shaft 74. The other end of the door restricting link 67 is slidably and rotatably coupled to the housing 64 via a shaft 75a.

Hereinafter, the structure of each part of the door opening and closing device 60 will be described with reference to an exploded perspective view of FIG. 4 on the one hand. The housing 64 is formed by combining the half-shell halves 64a, 64b. The housing halves 64a, 64b are formed by bending a thin plate. Parts such as the slider 71 are interposed between the housing half bodies 64a and 64b. An arm shaft 76 as a rotating shaft of the arm portion 66 is fixed to the casing 64. Further, a pair of shafts 75a and 75b for guiding the slider 71 are fixed to the casing 64. Further, a shaft 79 for guiding the spring support 78 is fixed to the casing 64. Also, the slider 71 is in the housing 64. In the case where the inner surface is guided, the pair of shafts 75a, 75b may not guide the slider 71. At this time, the long holes 71a, 71b of the slider 71 serve only as escape holes for the shafts 75a, 75b.

The arm portion 66 includes an elongated arm main body 66a formed in a substantially L shape and facing the fixture main body 65b from the arm shaft 76, a drum 66b provided at a corner portion of the L-shape, and an arm provided at a front end of the arm main body 66a. The slider 66c is used. The arm body 66a has two revolute pairs. That is, one end of the arm body 66a is rotatably coupled to the casing 64 via the arm shaft 76. The other end portion of the arm main body 66a is rotatably coupled to the arm portion slider 66c via a shaft 69. The arm portion slider 66c has a sliding pair and is slidably coupled to the fixture body 65b in one direction.

The door restricting link 67 is formed in a substantially L-shape as a whole. The door restriction link 67 has three rotation pairs and one slide pair. That is, one end of the door restricting link 67 is rotatably coupled to the fixture body 65b via the shaft 74. The central portion of the door restriction link 67 is rotatably coupled to the arm body 66a via a shaft 73. A substantially U-shaped elongated hole 67a is formed at the other end of the door restricting link 67. The shaft 75a enters the long hole 67a. The other end of the door restricting link 67 is slidably and rotatably coupled to the housing 64.

The slider 71 is movably provided in the housing 64 in one direction. The slider 71 is provided with a pair of long holes 71a and 71b which are fixed to a linear shape in which one of the shafts 75a and 75b of the casing 64 enters. The shaft 75a enters the long hole 71a of the slider and the long hole 67a of the door restriction link 67. A concave portion 71c is formed on a side surface of the slider 71. The recess 71c is formed by a groove extending in one direction. A door restriction link 67 is housed in the recess 71c. The door restriction link 67 is sandwiched between the slider 71 and the housing 64 (refer to FIG. 5). As shown in Fig. 5, when the slider 71 is viewed from a cross section (vertical cross section) orthogonal to one direction, the lateral width W of the portion of the slider 71 where the concave portion 71c is formed is compared with the large-diameter coil springs 72a and 72c which will be described later. Outer diameter narrow.

As shown in FIG. 4, a plurality of coil springs 72a to 72c as a means for imparting potential energy are accommodated in the slider 71. The coil springs 72a to 72c are provided with coil springs 72a and 72c having large diameters and a coil spring 72b having a small diameter. The coil springs 72a to 72c are compressed between the slider 71 and the spring support 78. The spring support 78 is configured such that the position adjustment mechanism 80 can adjust the position in one direction, and the ability to impart force of the coil springs 72a to 72c can be adjusted. The position adjustment mechanism 80 includes a spring inner diameter guide 81 fixed to the casing 64 via a support plate 82, and an adjustment screw 83 provided on the spring inner diameter guide 81. The adjusting screw 83 is screwed into the spring support 78, and when the adjusting screw 83 is rotated, the position in one direction of the spring support 78 can be adjusted. A cam 70 having a mountain-shaped cam surface 70a is attached to the front end of the slider 71. The cam surface 70a is in contact with the drum 66b of the arm portion 66.

A damper 84 that generates a damping force by the viscous resistance of the fluid is embedded in the front end of the slider 71. The damper 84 includes a tubular main body portion 84a and a telescopic damper that moves in a direction relative to the main body portion 84a. The moving direction of the shaft portion 84b is parallel to the moving direction of the slider 71, that is, one direction. One of the main body portion 84a and the shaft portion 84b is in contact with the arm portion 66, and the other of the main body portion 84a and the shaft portion 84b is housed in the damper housing hole of the slider 71 and is in contact with the slider 71. The damper 84 is interposed between the arm portion 66 and the slider 71. When the arm portion 66 is rotated by a predetermined angle or more in the closing direction, the arm portion 66 comes into contact with the damper 84, and the damper 84 is compressed.

As shown in Fig. 3, the fixture 65 has a spacer 65a attached to the door 62 by a locking means such as a bolt, and a fixture main body 65b attached to the spacer 65a by a locking means such as a bolt. A spacer 65a is preliminarily mounted on the door 62, and then the fixture body 65b is attached to the spacer 65a. By providing the spacer 65a, the three-dimensional position of the front, rear, left and right, and up and down of the door 62 can be adjusted.

As seen in Figure 2, viewed from the direction of the arm axis 76 of the arm portion 66, the door The restriction link 67 overlaps with the slider 71. In Figure 2, these overlaps are shown in the area of a little chain line. In order to increase the potential of the coil springs 72a to 72c, if a plurality of coil springs 72a to 72c are provided or the coil springs 72a to 72c are increased in size, the slider 71 is also increased in size. The door restricting link 67 is coupled to the arm portion 66 via the shaft 73, and is rotated forward and backward in the left-right direction in FIG. 2 on the one hand with the rotation of the arm portion 66. By overlapping the door restricting link 67 and the slider 71, the degree of freedom in arrangement of the door restricting link 67 and the slider 71 can be increased even if the door restricting link 67 is rotated on the one hand in the front-rear direction, and even if the slider is When the size of the 71 is increased, the size of the door opening and closing device 60 can be prevented from increasing.

The reason why the door 62 is subjected to the predetermined movement by the door restriction link 67 is as follows. As shown in FIG. 2, the center portion of the door restricting link 67 in the longitudinal direction is rotatably coupled to the arm portion 66 via the shaft 73. One end of the door restricting link 67 is rotatably coupled to the fixture 65 via a shaft 74. A long hole 67a is formed at the other end of the door restricting link 67. The long hole 67a is slidably and rotatably inserted into the shaft 75a fixed to the housing 64.

On the other hand, one end of the arm portion 66 is rotatably coupled to the arm shaft 76 of the housing 64. The other end of the arm portion 66 is rotatably and slidably coupled to the fixture 65 via a shaft 69.

The arm portion 66 and the door restriction link 67 are X-shaped to form an X-link mechanism. As shown in Fig. 6, this X-link mechanism is conceivable as a combination of two interlocking chains C1 and C2. 2 and 6, the door restriction link 67 corresponds to the link a, the arm portion 66 corresponds to the link b, the arm portion slider 66c corresponds to the link c, and the fixture 65 corresponds to the link d. Further, the casing 64 corresponds to the link e, and the long hole 67a of the door restriction link 67 corresponds to the link f. According to the skeleton, if the link e is fixed, the link d You can perform a given exercise. By providing the door limit link 67, the door 62 can perform a predetermined movement.

FIG. 7 shows an action diagram of the door opening and closing device 60. As shown in Fig. 7(a), the door 62 is further biased by the cam 70 in a state in which the door 62 is closed. Therefore, the door 62 is maintained in the closed state.

As shown in FIG. 7(b), when the door 62 is opened at a predetermined angle (for example, about 30 degrees), the direction of the force applied from the cam 70 to the door 62 is changed, thereby imparting a force to the door 62 in the opening direction. Further, the door 62 can be opened from the state shown in Fig. 7 (b) to the fully open state shown in Fig. 7 (d) with a small force. Further, between the state shown in Fig. 7 (b) and the fully open state shown in Fig. 7 (d), the door 62 can be stopped at an arbitrary position. As shown in FIG. 7(d), the door 62 is further biased in the opening direction by the cam 70 in a state where the door 62 is opened. Therefore, the door 62 is maintained in an open state.

As shown in FIGS. 7(a) to 7(d), if the opening angle of the door 62 is increased, the arm portion 66 is rotated in the clockwise direction. The door restricting link 67 moves toward the front of the casing 61 in accordance with the clockwise rotation of the arm portion 66. Therefore, on the one hand, the door 62 can be taken out toward the front of the frame 61 to be opened on the one hand.

When the door 62 in the fully open state shown in FIG. 7(d) is closed, if the door 62 is closed to the state shown in FIG. 7(b), the door 62 is biased in the closing direction. Therefore, even if the hand is released from the door 62, the door 62 automatically achieves the fully closed state shown in Fig. 7(a). When the door 62 is in the fully closed state, the damper 84 is compressed between the arm portion 66 and the slider 71. Therefore, the damping force is generated and the door 62 is slowly closed.

According to the door opening and closing device 60 of the first embodiment, the following effects can be obtained. Since the door restricting the link 67 of the restriction door 62 is provided to cause the door 62 to perform a predetermined movement, it is not necessary to provide a hinge other than the door opening and closing device 60. In addition, the threshold The link 67 is rotatably coupled to the arm portion 66 at a position away from the center of rotation of the arm portion 66, so that when the door 62 is opened, the door restricting link 67 faces the frame 61 as the arm portion 66 rotates. Party moves. Therefore, on the one hand, the door 62 can be taken out toward the front of the frame 61 to open the door on the one hand. The door 62 can be prevented from interfering with the frame 61 by taking the door 62 toward the front of the frame 61 on the one hand and opening the door. Further, since the door restriction link 67 is overlapped with the slider 71 as viewed in the axial direction of the arm shaft 76, the degree of freedom in arrangement of the door restriction link 67 and the slider 71 can be improved even if the door restriction link 67 is on the one hand The rotation moves on the one hand in the front-rear direction, and even if the slider 71 is enlarged in order to obtain a large potential, the door switch device 60 can be prevented from being enlarged.

Further, since the shaft 75a is provided in the casing 64, and the long holes 71a and 67a into which the shaft 75a enters are provided in the slider 71 and the door restriction link 67, the shaft 75a and the door restriction for guiding the slider 71 can be doubled. The link 67 is used to guide the shaft 75a. When the slider 64 is guided by the casing 64 and the slider 71 is slid in one direction, the ability to impart potential to the potential energy means is increased, which may cause deformation of the casing 64. Since the direction of the moment imparted to the arm portion 66 from the cam 70 is reversed, the slider 71 pushes up or down the housing 64. According to the present embodiment, the slider 71 is slid in one direction by guiding by the shaft 75a, and deformation of the casing 64 can be prevented.

The concave portion 71c is provided on the side surface of the slider 71, and the door restriction link 67 is housed in the concave portion 71c of the slider 71. Therefore, as shown in FIG. 5, the door opening and closing device 60 can be prevented from being enlarged in the thickness direction (the horizontal direction in FIG. 5). .

A telescopic damper 84 that slides the shaft portion 84b in the axial direction with respect to the main body portion 84a is provided between the arm portion 66 and the slider 71, so that the rotation of the arm portion 66 and the sliding of one of the sliders 71 can be utilized. The telescopic shock absorber 84 is compressed. Therefore, a large damping force can be generated.

The transmission mechanism is provided on the cam 70 of the slider 71, and the arm portion 66 is provided with the roller 66b that is in contact with the cam 70, so that the imparting ability of the coil springs 72a to 72c can be stably transmitted to the arm portion 66.

The door 62 is a wing door 62 that is rotatable about a horizontal axis, and the housing 64 is attached to the inner surface of the side plate 61a of the frame 61, and the fixture 65 is attached to the back surface of the wing door 62, so that the level can be opened with a small force. The wing rotation wing door 62 (auxiliary function) allows the wing door 62 opened to a predetermined angle to be stopped at any position (free stop function).

8 and 9 show a door opening and closing device according to a second embodiment of the present invention. In the first embodiment, the arm portion 66 is slidably coupled to the fixture 65. On the other hand, as shown in FIG. 8, in the second embodiment, the arm portion 66 is coupled to the fixture 65 via the auxiliary link 85. There are differences in the points. Other configurations are the same as those of the door switch device of the first embodiment described above, and therefore, the same reference numerals will be given thereto, and description thereof will be omitted.

As shown in FIG. 9, one end of the auxiliary link 85 is rotatably coupled to the fixture 65 via a shaft 86. The other end of the auxiliary link 85 is rotatably coupled to the arm portion 66 via a shaft 87. According to the second embodiment, even if the arm portion 66 is coupled to the fixture 65 via the auxiliary link 85, the door 62 can perform only a predetermined movement by the door restriction link 67.

10 to 13 show a door opening and closing device according to a third embodiment of the present invention. The door opening and closing device of the third embodiment differs from the door opening and closing device of the first embodiment mainly in the following three aspects. First, in the first and first embodiments, the cam 70 as the transmission mechanism is provided in the slider 71. On the other hand, as shown in Fig. 11, in the third embodiment, the arm portion 14 and the slider 27 are rotatably The force is applied to the link 24 as a transmission mechanism, and the force imparting link 24 imparts a potential imparting force to the arm portion 66. In the second and first embodiments, the door limiting link 67 is slidably coupled to the housing 64, as opposed to Here, in the third embodiment, the door restricting link 15 is slidably coupled to the slider 27. In the third and first embodiments, the damper 84 is provided between the slider 71 and the arm portion 66. In the third embodiment, a damper is interposed between the housing 21 and the arm portion 14. 43. Hereinafter, the door opening and closing device of the third embodiment will be described in detail.

Figure 10 shows a perspective view of the frame and the door opening and closing device 20 mounted on the door. A casing 21 as a main body of the switchgear is attached to the inner surface 11a of the casing 11 by a locking means such as a bolt. In order to stabilize the switch of the door 12, the casing 21 is provided on each of the left and right sides of the casing 11. A fixture 13 is attached to the inner surface of the door 12 by a locking means such as a bolt. The fixture 13 extends in a direction along the surface of the door 12. An arm portion 14 and a door restriction link 15 are disposed between the housing 21 and the fixture 13 . The arm portion 14 functions to assist the person's hand in switching the door 12. The door limiting link 15 limits the door 12 to cause the door 12 to perform a predetermined movement. Since the door 12 is restricted by the door restricting link 15, it is not necessary to provide a hinge for restricting the door 12 except for the door opening and closing device 20. The housing 21 is covered by a trim cover 23.

FIG. 11 shows the internal configuration of the door opening and closing device 20. An arm portion 14 is rotatably provided to the housing 21. The center of rotation of the arm portion 14 is provided on the first shaft 22 of the housing 21 as an arm shaft. The arm portion 14 includes a coupling plate 14a around the first shaft (arm shaft) 22, an arm body 14b extending from the first shaft (arm shaft) 22 toward the fixture 13, and is slidably disposed in the longitudinal direction. The arm portion of the arm body 14b is a slider 14c. The arm slider 14c is rotatably coupled to one end of the fixture 13. The arm portion slider 14c is provided with a friction adjusting plate 31 (see FIG. 12) for adjusting the friction between the arm portion slider 14c and the arm portion body 14b. The friction between the arm portion slider 14c and the arm portion 14b is adjusted to achieve a so-called free stop.

The connecting plate 14a of the arm portion 14 is separated from the first axis (arm axis) 22 The door restriction link 15 and the force application link 24 are rotatably coupled to the position. As described above, the door restriction link 15 is a link for causing the door 12 to perform a predetermined movement. On the other hand, the force imparting link 24 is a link for giving the door 12 a force for opening the door and closing the door.

As shown in FIG. 11, the slider 27 is slidably provided in the housing 21 in one direction. The slider 27 is provided with potential energy in one direction by the coil spring 18 as a means for imparting potential energy. A force is applied to the link 24 between the slider 27 and the arm portion 14. One end of the force imparting link 24 is rotatably coupled to the arm portion 14. The other end portion of the force imparting link 24 is rotatably coupled to the slider 27 via a sixth shaft 25 as a slider rotating shaft. The imparting ability of the coil spring 18 is converted into the moment of the arm portion 14.

Hereinafter, the structure of each part of the door opening and closing device 20 will be described with reference to an exploded perspective view of FIG. 12 on the one hand. The casing 21 is formed by combining the half-shell halves 21a, 21b. The case halves 21a, 21b are formed by bending a thin plate. Guide walls 21a1 projecting inward are formed in the housing half bodies 21a, 21b. A substantially rectangular slider 27 is slidably accommodated in the guide wall 21a1 in one direction along the guide wall 21a1. A first shaft (arm shaft) 22 is provided between the housing halves 21a and 21b, and the first shaft (arm shaft) 22 serves as a center of rotation of the arm portion 14 to the housing 21. The housing 21 is covered by a trim cover 23.

The arm portion 14 includes one pair of connecting plates 14a around the first shaft (arm shaft) 22, an arm body 14b extending from the first shaft (arm shaft) 22 toward the fixture 13, and slidable in the longitudinal direction The arm portion slider 14c is provided in the arm body 14b. A shaft insertion plate 34 is interposed between the pair of coupling plates 14a. The shaft insertion plate 34 is inserted into the first shaft (arm shaft) 22, the second shaft 32, and the third shaft 33, and the second shaft 32 is the rotation shaft of the pair of arm portions 14 of the door restriction link 15, and the third shaft 33 The force is applied to the axis of rotation of the pair of arms 14 of the link 24. One end of the arm body 14b is opened for mounting a pair of connecting plates 14a Mounting holes. A coupling plate 14a is inserted into one end of the arm body 14b. Further, the connecting plate 14a is coupled to the arm main body 14b by a pin. One end of the arm body 14b is surrounded by a frame-shaped fixing piece. The front end of the arm body 14b is closed by a plug.

The arm portion slider 14c is slidably provided in the arm body 14b so as to be slidable in the longitudinal direction of the arm body 14b. The arm portion slider 14c is formed in a frame shape surrounding the arm portion body 14b. The arm portion slider 14c is formed with a projection portion 14c1 that is coupled to the fixture 13. The fixture 13 is rotatably attached to the protrusion 14c1 of the arm body 14b via the fourth shaft 35.

A friction adjusting plate 31 is provided between the arm main body 14b and the arm portion slider 14c. The friction adjusting plate 31 slides together with the arm portion slider 14c. The force of pressing the arm portion 14b of the friction adjusting plate 31 is adjusted by the position adjusting screw 36. By adjusting the pressure of the friction adjusting plate 31, the resistance when the arm slider 14c slides with respect to the arm main body 14b can be adjusted.

The fixture 13 is formed in a U-shaped cross section and elongated in a direction. A screw hole 13a1 for inserting a bolt for attaching the fixture 13 to the surface of the door 12 is formed on the bottom wall 13a of the fixture 13. An arm slider 14c is rotatably coupled to one end portion of the fixture 13 in the longitudinal direction. A door restriction link 15 is rotatably coupled to the other end portion of the holder 13 in the longitudinal direction. The side wall 13b of the fixture 13 is inserted into the fourth shaft 35 and the fifth shaft 38, the fourth shaft 35 is the rotation shaft of the pair of sliders 14c for the arm portion 14, and the fifth shaft 38 is the door limiting link 15 The axis of rotation of the fixture 13.

The door restricting link 15 has a base portion 15b that is elongated in one direction and an end portion 15c that is bent before the base portion 15b, and is formed in an L shape as a whole. A second shaft 32 is inserted into a central portion of the base portion 15b in the longitudinal direction. The outer shape of the substrate 15b is expanded. The long hole 15a of the base portion 15b is inserted into the sixth shaft (slider rotation shaft) 25, and the sixth shaft (slider rotation) The rotation shaft 25 gives the rotation axis of the pair of sliders 27 of the link 24. A fifth shaft 38 is inserted into the front end portion 15c of the door restriction link 15. The door restricting link 15 overlaps the slider 27 as viewed in the axial direction of the first shaft (arm shaft) 22 (refer to Fig. 11).

The pair of force imparting links 24 are elongated in one direction. One end of the force imparting link 24 is rotatably coupled to the connecting plate 14a via the third shaft 33. The other end portion of the force imparting link 24 is rotatably coupled to the slider 27 via a sixth shaft (slider rotating shaft) 25. The sixth shaft (slider rotation shaft) 25 is composed of a first slider rotation shaft 25a and a second slider rotation shaft 25b.

The slider 27 is movably disposed in the housing 21 in one direction. The spring support 41 is attached to the housing 21 via a pin 42. A coil spring 18 is provided between the slider 27 and the spring support 41. The slider 27 is biased in one direction by the coil spring 18. A mountain-like projection 27a is formed at one end of the slider 27. The projection 27a is formed with a recess 27b and a long hole 27c corresponding to the first slider rotating shaft 25a and the second slider rotating shaft 25b of the force applying link 24. The first slider rotating shaft 25a is inserted into the recess 27b, and the second slider rotating shaft 25b is inserted into the long hole 27c.

A damper 43 that generates a braking force by the viscous resistance of the fluid is incorporated in the casing 21. When the arm portion 14 rotates in a direction higher than a predetermined angle, the arm portion 14 abuts against the movable portion 44 of the damper 43, and the damper 43 is compressed. When the damper 43 is compressed, the damper 43 applies a braking force to the arm portion 14.

In the present embodiment, the sixth shaft (slider rotation shaft) 25, which is the center of rotation of the pair of sliders 27, is composed of the first and second slider rotation shafts 25a and 25b. Further, when the opening angle of the door 12 is equal to or less than a predetermined angle, the first slider rotating shaft 25a is switched to the second slider rotating shaft 25b, and the force acting on the closing direction of the door 12 is alleviated. Hereinafter, the second slider rotating shaft 25a is turned to the second The switching operation of the slider rotating shaft 25b will be described.

As shown in Fig. 13 (a), in a state where the door 12 is opened, the second slider rotating shaft 25b of the force imparting link 24 is located at the right end of the long hole 27c of the slider 27. In this state, the center of rotation of the force imparting link 24 with respect to the slider 27 is the second slider rotating shaft 25b. The imparting force of the coil spring 18 is transmitted to the arm portion 14 via the second slider rotating shaft 25b and the force imparting link 24. In the state where the door 12 is opened, the moment of the door opening direction is applied to the arm portion 14.

As shown in Fig. 13 (b), when the door 12 is rotated in the closing direction, the slider crank mechanism S1 reaches the dead point. As shown in FIG. 13(c), if the door 12 is further rotated in the closing direction, the slider crank mechanism S1 exceeds the dead point, and the arm portion 14 acts on the moment in the closing direction.

In the door opening and closing device 20 in which the door 12 is rotated about the horizontal axis, the moment acting on the door 12 increases as the door 12 is opened up to approximately 90 degrees. The slider crank mechanism S1 is utilized in order to easily perform the door opening operation of the door 12 by a human hand. If the imparting ability of the coil spring 18 is enhanced, the door opening operation of the door 12 can be made easier. However, if the potential of the coil spring 18 is enhanced, there is a heavy feeling when the door 12 in the state of the door is opened. In order to prevent this, as shown in FIGS. 13(b) to 13(c), the force is applied to the center of the rotation of the pair of sliders 27 of the link 24, and is switched from the second slider rotation shaft 25b to the first slider rotation. Axis 25a. As shown in FIG. 13(c), when the force imparting link 24 is rotated, the second slider rotating shaft 25b floats from the right end of the long hole 27c of the slider 27, and instead, the first slider The rotating shaft 25a is seated in the recess 27b of the slider 27.

Figure 14 is a graph showing the relationship between the door opening angle of the door 12 and the moment acting on the door 12. If the door opening angle of the door 12 reaches a predetermined angle of 30 degrees or more, then The slider crank mechanism S1 acts on the door 12 to apply a moment in the opening direction. The moment increases sinusoidally as the door opening angle of the door 12 increases. Therefore, the door 12 can be easily opened. On the other hand, when the door opening angle of the door 12 is less than the predetermined angle, the torque acting on the door closing direction of the door 12 can be obtained by switching from the second slider rotating shaft 25b to the first slider rotating shaft 25a. The solid line is reduced to the dotted line. Therefore, the closed state door 12 can be easily opened.

Fig. 15 shows a door opening and closing device 50 according to a fourth embodiment of the present invention. In the third embodiment, the door restricting link 15 is slidably and rotatably coupled to the slider 27. In the fourth embodiment, the door restricting link 15 is coupled to the housing 21 via the auxiliary link 51. The point is different from the door opening and closing device 20 of the third embodiment. One end of the auxiliary link 51 is rotatably coupled to the housing 21. The other end of the auxiliary link 51 is rotatably coupled to the door restriction link 52. The rest of the configuration is the same as that of the door switch device 20 of the third embodiment, and therefore the same reference numerals will be given thereto, and the description thereof will be omitted.

The door restriction link 52, the arm portion 14, the housing 21, and the auxiliary link 51 constitute the second interlock C2 of FIG. All four links are interlocked by a pair of rotations. According to the present embodiment, even if the second interlock C2 is constituted by the four-section rotation interlock, the door 12 performs the predetermined movement by the door restricting link 52.

As shown in Fig. 15 (a), in a state where the door 12 is closed, the door 12 is further biased in the closing direction. As shown in FIG. 15(b), when the door 12 in the closed state is opened by a predetermined angle or more, the door 12 is given a force in the door opening direction. As shown in FIG. 15(c), when the door 12 is in the open state, the door 12 is further biased in the door opening direction.

Further, the present invention is not limited to the specific embodiments of the embodiments described above, and may be embodied in various embodiments without departing from the spirit and scope of the invention.

In the above embodiment, the present invention is applied to the upper portion of the door frame An example in which the horizontal axis rotates above the open wing door is described, but the present invention can also be applied to a wing door that is opened below the horizontal axis of the lower portion of the frame. In addition, it can also be applied to a folding door type door that connects two doors with a hinge.

In the above embodiment, the door restriction link and the slider are overlapped from the state in which the door is closed to the state in which the door is opened, as viewed from the direction of the rotation axis of the arm, but the door may be opened only from the state in which the door is closed. In a certain range up to the state, the door restriction link is overlapped with the slider.

In the above embodiment, the door restricting link is formed with a long hole, and the slider or the casing is provided with a shaft that enters the long hole. However, it is also possible to provide a shaft for the door limiting link and a long hole for the shaft to enter the slider or the housing.

The shape of the door restricting link, the arm portion, the force applying link, the slider, the fixing tool, and the like of the above-described embodiment can be appropriately changed depending on the size of the door, the weight of the door, and the opening manner of the door.

In the above embodiment, the fixture main body is constituted by one component. However, the fixture main body may be configured by two components including the first divided body connected to the door restricting link and the second divided body connected to the arm.

In the above embodiment, the casing of the door opening and closing device is attached to the inner surface of the side plate of the casing, but may be attached to the outer surface of the side plate of the casing. When the outer surface of the side plate of the casing is attached, the arm portion and the door restriction link do not interfere with the storage, so that the article can be easily stored in the casing.

The present specification is based on Japanese Patent Application No. 2012-210302 filed on September 25, 2012. The contents are all included in this specification.

Claims (6)

A door switch device comprising: a switch device body mounted on a frame; a fixture mounted on the door; and an arm portion rotatably disposed on the switch device body, and The fixing device applies a force to at least one of a door opening direction and a closing direction of the door; the slider is slidably disposed in the one direction to the switch device body; and the potential energy means is provided to the slider in the one direction a potential mechanism; a transfer mechanism that transmits the potential imparting ability imparted to the potential energy means to the arm; and a door restricting link for causing the door to perform a predetermined movement at a position away from a center of rotation of the arm portion a rotating manner is coupled to the arm portion and rotatably coupled to the fixture, and slidably coupled to the switch device body or the slider, or coupled to the slider via an auxiliary link The switch device body or the slider; the door restricting link overlaps with the slider when viewed from an axial direction of a rotating shaft of the arm portion Said switching means is provided with a shaft main body, the slider and the door to the limit for the long link is provided with the hole into the shaft. The door opening and closing device of claim 1, wherein a concave portion is formed on a side surface of the slider, and the door restriction link is housed in the concave portion of the slider. For example, the door opening and closing device of claim 2, wherein The potential energy imparting means is one or more coil springs, and when the slider is viewed in a cross section orthogonal to the one direction, a lateral width of a portion of the concave portion of the slider is formed to be smaller than at least one of the coil springs path. A door switch device comprising: a switch device body mounted on a frame; a fixture mounted on the door; and an arm portion rotatably disposed on the switch device body, and The fixing device applies a force to at least one of a door opening direction and a closing direction of the door; the slider is slidably disposed in the one direction to the switch device body; and the potential energy means is provided to the slider in the one direction a potential mechanism; a transfer mechanism that transmits the potential imparting ability imparted to the potential energy means to the arm; and a door restricting link for causing the door to perform a predetermined movement at a position away from a center of rotation of the arm portion a rotating manner is coupled to the arm portion and rotatably coupled to the fixture, and slidably coupled to the switch device body or the slider, or coupled to the slider via an auxiliary link The switch device body or the slider; the door restricting link overlaps with the slider when viewed from an axial direction of a rotating shaft of the arm portion Said side surface of the slider is formed with a recess to limit the door rod accommodated in the recessed portion of the slider. For example, the door switch device of claim 4, wherein the above-mentioned energy-giving hand The segment is one or more coil springs, and when the slider is viewed in a cross section orthogonal to the one direction, a lateral width of a portion of the concave portion forming the slider is smaller than an outer diameter of at least one of the coil springs. A door switch device comprising: a switch device body mounted on a frame; a fixture mounted on the door; and an arm portion rotatably disposed on the switch device body, and The fixing device applies a force to at least one of a door opening direction and a closing direction of the door; the slider is slidably disposed in the one direction to the switch device body; and the potential energy means is provided to the slider in the one direction a potential mechanism; a transfer mechanism that transmits the potential imparting ability imparted to the potential energy means to the arm; and a door restricting link for causing the door to perform a predetermined movement at a position away from a center of rotation of the arm portion a rotating manner is coupled to the arm portion and rotatably coupled to the fixture, and slidably coupled to the switch device body or the slider, or coupled to the slider via an auxiliary link The switch device body or the slider; the door restricting link overlaps with the slider when viewed from an axial direction of a rotating shaft of the arm portion Transmission line cam mechanism is provided on the slider, the arm portion provided to the contacting of the cylinder with the cam.