JP2004150167A - Opening/closing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an opening/closing device dispensing with separate release operation for both a lower end regulating means and an intermediate regulating means besides having excellent crime preventiveness and preventing the intermediate regulating means from being released from regulation when the lower end regulating means is unintendedly released from regulation. <P>SOLUTION: This opening/closing device 1 is provided with an opening/closing body 6 lifted along an opening to open/close the opening. The opening/closing device 1 is provided with the lower end regulating means for regulating the rise of the opening/closing body 6 in the lower end side position of the opening/closing body 6 when closing the opening, and the intermediate regulating means for regulating the rise of the opening/closing body 6 in the vertically intermediate position of the opening/closing body 6 when closing the opening. The intermediate regulating means and the lower end regulating means are connected by an interlocking means 63 releasing the regulation of the lower end regulating means in response to the regulation release of the intermediate regulating means while not releasing the regulation of the intermediate regulating means in response to the regulation release of the lower end regulating means. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a switchgear provided with a lower end regulating unit and an intermediate regulating unit.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, there is known an opening / closing device provided with an intermediate regulating means (intermediate lock) for regulating the elevation of an opening / closing body at an intermediate position in a vertical direction (for example, a height of about 120 cm from the lower end) when the opening is closed. (For example, see Patent Document 1). An opening / closing device provided with a lower end regulating means (lower end lock) for restricting the rise of the opening / closing body at the lower end side position of the opening / closing body when the opening is closed is also conventionally known.
[0003]
[Patent Document 1]
Japanese Patent No. 3077641 (page 3, FIG. 1)
[0004]
[Problems to be solved by the invention]
Thus, for example, an opening / closing device that regulates the rise of the opening / closing body by both the lower end regulating means and the intermediate regulating means is considered.
[0005]
However, when the lower end regulating means and the intermediate regulating means are provided separately and independently from each other, it is necessary to perform the releasing operation separately for both.
[0006]
Further, when the lower end regulating means and the intermediate regulating means are provided so as to be always linked to each other, when the lower end regulating means is unintentionally released, the intermediate regulating means is also released.
[0007]
The present invention has been made in view of such a point, and is not only excellent in security, but also does not require a separate release operation for both the lower end regulating means and the intermediate regulating means. It is an object of the present invention to provide an opening / closing device which can prevent the intermediate regulation means from being unregulated when the regulation is unintentionally canceled.
[0008]
[Means for Solving the Problems]
The opening / closing device according to claim 1, wherein the opening / closing body moves up and down along the opening to open and close the opening, and a lower end that regulates a rise of the opening / closing body at a lower end side position of the opening / closing body when the opening is closed. Regulating means, intermediate regulating means for regulating the elevation of the opening / closing body at an intermediate position in the vertical direction of the opening / closing body when the opening is closed, and regulating the lower end regulating means in response to the regulation cancellation of the intermediate regulating means. Interlocking means that does not release the regulation of the intermediate regulation means in response to the regulation release of the lower end regulation means.
[0009]
Then, not only is the crime-prevention property superior to that in which the opening / closing body is restricted only by the intermediate regulating means or the lower end regulating means alone, but also the release operation is separately performed for both the lower end regulating means and the intermediate regulating means. Therefore, when the lower end regulating means is unintentionally released from the restriction, the intermediate restriction means is also prevented from being released from the restriction.
[0010]
The opening and closing device according to claim 2 is the opening and closing device according to claim 1, wherein the interlocking unit is configured by a flexible member connected to the lower end regulating unit and the intermediate regulating unit, and the flexible member is The lower end restricting means is pulled and lifted in response to the restriction release of the intermediate restricting means to release the lower end restriction means. There is something.
[0011]
The lower end restricting means is pulled and lifted in accordance with the restriction release of the intermediate restriction means to release the lower end restriction means, and may be bent in response to the restriction release of the lower end restriction means and does not release the restriction of the intermediate restriction means. By using a flexible member, the configuration can be simplified.
[0012]
According to a third aspect of the present invention, there is provided the opening and closing device according to the second aspect, wherein the flexible member has a lower end connected to the lower end regulating means and an upper end connected to the intermediate regulating means. This is an elongated member having
[0013]
The flexible member is a flexible and flexible elongated member having a lower end connected to the lower end regulating means and an upper end connected to the intermediate regulating means. Sticking is prevented.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a configuration of an opening and closing device according to an embodiment of the present invention will be described with reference to FIGS. 1 to 9.
[0015]
In the figure, reference numeral 1 denotes an opening / closing device, which is, for example, a manual window shutter device for opening and closing an opening 3 formed in a building 2. A portion on the indoor side from the opening 3 is opened and closed by, for example, a sash window device 4 (see FIG. 6).
[0016]
The opening / closing device 1 includes an opening / closing body 6 such as a shutter curtain that moves up and down along the opening 3 to open and close the opening 3, and a left-right winding shaft and the like that can wind the opening / closing body 6 and rewind. And a winding body 7.
[0017]
The opening / closing body 6 is lowered along the opening 3 by rewinding by the winding body 7 to be in a substantially rectangular plate-like closed state to close the opening 3, and the opening 3 is wound by the winding body 7. Along the line 3 to form a substantially cylindrical opening state, and the opening 3 is opened. The opening / closing body 6 is housed in the housing case 5 by winding by the winding body 7.
[0018]
The opening / closing body 6 includes a plurality of opening / closing body components 8 such as slats having the same shape and connected to each other in the vertical direction, and a left / right longitudinal hollow body connected to the lower end opening / closing body component 8. An opening / closing body lower end member 9 such as a skirting board.
[0019]
Each opening / closing member 8 is integrally formed of, for example, a metal or the like into a substantially rectangular plate elongated in the left-right direction. Further, the cross-sectional shape of each of the opening / closing member 8 is substantially arc-shaped convex toward the outdoor side, and each of the opening / closing member 8 has a housing portion 10 that is open toward the indoor side.
[0020]
The inner surface side of one of the plurality of opening / closing body components 8 which is located at the intermediate portion in the vertical direction (for example, substantially the center in the vertical direction) of the opening / closing body 6 in the closed state when the opening 3 is closed. An operating body 12 such as an intermediate operating lever having protruding engaging portions 11 on both left and right sides is provided on the (indoor side surface side) substantially the entire length of one opening / closing body constituent member 8 (substantially the entire width of the opening / closing body 6). ) Is provided via the mounting base 13 so as to be rotatable up and down around the upper end so as to be positioned over the mounting base 13. Since the operating body 12 is disposed on the inner surface side of the one opening / closing body constituent member 8, it cannot be seen from the outdoor.
[0021]
The mounting base 13 is formed in a substantially rectangular plate shape elongated in the left-right direction, and is fixed to an inner surface (a surface on the indoor side) of the one opening / closing member 8 along the inner surface. A bearing portion 14 having a substantially C-shaped cross section is formed at the upper end of the mounting base 13. A spring hole 15 is formed at a longitudinal end of the mounting base 13.
[0022]
A linear spring 16, which is an urging member for urging the operating body 12 in the upward rotation direction, is attached to the attachment base 13 by being inserted into the spring hole 15. The spring 16 is formed integrally with a projecting action portion 17 projecting from an inner surface (a surface on the indoor side) of the mounting base 13 toward the indoor side by bending.
[0023]
The operating body 12 changes between a housed state, a regulated state, and a released state by rotation about an upper end portion, and has a substantially rectangular plate-shaped operating body main body 21 elongated in the left-right direction. I have. At the upper end of the operating body 21, there is provided a substantially cylindrical support shaft portion 22 rotatably fitted to the bearing portion 14 of the mounting base 13. At both ends in the longitudinal direction of the operation body 21, projecting plate-shaped engaging portions 11 projecting sideways from the end surface of the operation body 21 are integrally formed with the operation body 21. It is provided integrally so as to rotate.
[0024]
In addition, a hooking projection 23 is provided at a free end, which is the lower end of the operation body main body 21, so that the operation body 12 can be easily turned upward by human power.
[0025]
As shown in FIG. 3, when the operating body 12 is wound by the rotating winding body 7, the operating body 12 is placed on the outer surface side of a plurality of other opening / closing body constituent members 8 wound earlier. In a pressed form, it is rotated downward against the urging force of the spring 16 to be housed, and housed in the housing portion 10 of the one opening / closing member 8 (see FIG. 3).
[0026]
As shown in FIG. 4, when the operating body 12 is rewound by the rotating winding body 7, the operating body 12 is rotated upward to a predetermined position by the urging force of the spring 16 to form one opening / closing body constituent member. 8 is a handle portion inclined from the accommodating portion 10 of the opening and closing member 8. As shown by a two-dot chain line in FIG. 4, when the operator puts his hand on the operating body 12 supported by the action portion 17 of the spring 16 and rotates the operating body 12 upward, the opening / closing body 6 is raised as it is. be able to.
[0027]
On the other hand, as shown in FIG. 9, a substantially disc-shaped turn is provided at a substantially central portion in the longitudinal direction of an opening / closing body lower end member 9 located at a lower end of the opening / closing body 6 in a closed state when the opening 3 is closed. The moving body 31 is provided so as to be rotatable around a center axis 32 in the front-rear direction which is the indoor / outdoor direction. The outer periphery of the rotating body 31 is provided with two protrusions 33 which are spaced apart from each other.
[0028]
In addition, a pair of left and right movable bodies 34 that are elongated in the left-right direction are provided on the open / close body lower end member 9 so as to be movable in the left-right direction. Each movable body 34 changes between a restricted state and a restricted state by the movement based on the rotation of the rotating body 31.
[0029]
A hole 35 such as a long hole or a circular hole is formed at the inner end of each movable body 34, and the projection 33 of the rotating body 31 is inserted into this hole 35, and the rotating body 31 and both movable bodies 34 are inserted. 34 are linked to each other. At the outer end of each movable body 34, a lower end engaging portion 36 is formed which moves forward and backward with respect to the opening / closing body lower end member 9 in accordance with the movement of the movable body 34.
[0030]
On the other hand, the opening / closing device 1 is disposed so as to be separated from and opposed to each other via the opening 3 and includes a pair of right and left guide rails 41 for guiding the opening / closing body 6 when the opening / closing body 6 moves up and down. Each of the guides 41 is formed with a guide groove 42 having a substantially U-shaped cross section, which is vertically elongated and into which the side end of the opening / closing body 6 is inserted.
[0031]
The guide groove portion 42 has a pair of opposed plate portions 44 separated from each other via a space 43 opened toward the opening 3, and the indoor opposed plate portion 44 of the pair of opposed plate portions 44. A protruding plate portion 45 protrudes toward the indoor side from the front end portion.
[0032]
At the middle part in the up-down direction of each guide body 41 (for example, substantially the center part in the up-down direction), when the opening 3 is closed, the opening / closing body 6 in the closed state is raised by engagement with the engaging portion 11 of the operating body 12. An engagement receiving body 51, which is an engagement receiving portion that regulates releasably at an intermediate position in the vertical direction of the opening / closing body 6, is provided so as to be adjustable in height.
[0033]
The engagement receiver 51 is arranged so as not to be visible from outside when the opening 3 is closed. That is, when the opening 3 is closed, the engagement receiving body 51 is located on the indoor side with respect to the opening / closing body 6 in the closed state and is hidden by the opening / closing body 6 from the outside. For example, the engagement receiver 51 is provided on the protruding plate portion 45 located on the indoor side from the opening 3.
[0034]
The engagement receiving body 51 has a guide surface 52 inclined downward toward the indoor side with respect to the vertical plane, and has an engagement receiving surface 53 substantially along the horizontal plane. On the other hand, the engaging portion 11 of the operating body 12 is disengaged.
[0035]
As shown in FIG. 9, the lower end of each guide body 41 opens and closes the opening and closing body 6 in the closed state by engagement with the lower end engaging portion 36 of the movable body 34 when the opening 3 is closed. A lower end engagement receiving body 55 is provided as a lower end engagement receiving portion that regulates releasability at a lower end side position of the body 6. The lower end engagement receiving body 55 changes between an advanced state and a retracted state by, for example, rotation about a central axis 56 in the front-rear direction.
[0036]
The lower end engagement receiving body 55 has a guide surface 57 inclined downward toward the opening 3 side with respect to the vertical surface in the advanced state, and has an engagement receiving surface 58 substantially along a horizontal plane. The lower end engaging portion 36 of the movable body 34 is disengaged from the engagement receiving surface 58.
[0037]
When the opening 3 is closed, the operation of the operating body 12 having the engaging portion 11, the mounting base 13, the spring 16, the engaging receiving body 51, and the like raises the closed state of the opening / closing body 6 in the vertical direction of the opening / closing body 6. Standing from the indoor side which is releasably regulated at an intermediate position (for example, a substantially central position in the vertical direction), that is, for example, at a height of about 50 cm to 150 cm, preferably about 120 cm from the lower end of the closed state of the opening / closing body 6. The intermediate restricting means 61 is configured to be capable of being released while being held in the posture. The intermediate regulating means 61 is arranged so as not to be visible from outside when the opening 3 is closed.
[0038]
Further, the movable body 34 having the lower end engaging portion 36, the rotating body 31, the lower end engaging receiver 55, and the like are used to raise the closed state of the opening / closing body 6 when the opening 3 is closed. A lower end restricting means 62 for restricting releasability is constituted.
[0039]
On the other hand, the opening / closing device 1 releases the regulation of the lower end regulation means 62 in response to the regulation release of the intermediate regulation means 61 based on the upward rotation operation of the operating body 12, and responds to the unregulated release of the lower end regulation means 62. An interlocking unit 63 that does not release the regulation of the intermediate regulating unit 61 is provided.
[0040]
The interlocking means 63 is composed of flexible members 65 (for example, a string, a belt, a wire, a band member, etc.) connected to the rotating body 31 of the lower end regulating means 62 and the operating body 12 of the intermediate regulating means 61, respectively. ing.
[0041]
The flexible member 65 can be wound and unwound with the opening / closing body 6 with respect to the winding body 7. For example, the lower end which is one end is connected to the rotating body 31 of the lower end regulating means 62 and One flexible and flexible elongate member 66 connected to the substantially central portion in the longitudinal direction of the operating body 12 of the intermediate restricting means 61 is an upper end which is an end. Since the elongated member 66 comes into contact with the opening / closing body 6 at the time of winding or the like, a string or the like having such flexibility as not to damage the opening / closing body 6 is preferable.
[0042]
The flexible member 65, which is the elongated member 66, is pulled and lifted in response to the restriction release of the intermediate restriction member 61 based on the upward rotation operation of the operating body 12, and releases the lower end restriction member 62. The intermediate portion bends in response to unintentional release of the lower end restricting means 62 and the intermediate restricting means 61 is not released.
[0043]
Next, the operation of the embodiment will be described.
[0044]
When the opening 3 is manually closed, the opening / closing body 6 is lowered along the opening 3 while being rewound from the winding body 7.
[0045]
When the opening / closing body 6 is rewound by the winding body 7, as shown in FIG. 4, the operating body 12 is rotated upward to a predetermined position by the urging force from the spring 16, and one opening / closing body constituent member is provided. 8 comes out of the accommodating portion 10 and becomes a handle portion.
[0046]
During this downward movement, the engaging portion 11 of the operating body 12 is guided by the guide surface 52 of the fixed engagement receiving body 51, and after climbing over the guide surface 52, the lowering of the operating body 12 due to its own weight is performed. The movement causes the engagement receiving body 51 to enter below the engagement receiving surface 53, whereby the operating body 12 is brought into a restricted state in which the operating body 12 is supported by the spring 16 in an inclined manner.
[0047]
Further, the lower end engaging portion 36 of the movable body 34 moves over the guide surface 57 of the lower end engaging receiver 55 once the lower end engaging Go down.
[0048]
As is apparent from FIG. 5 and the like, even if the opening / closing body 6 is to be lifted without bringing the operating body 12 into the regulation releasing state, the rise of the opening / closing body 6 is caused by the intermediate regulating means 61 and the lower end regulating means 62. Regulated by. That is, the engagement between the engaging portion 11 of the operating body 12 in the restricted state and the engagement receiving surface 53 of the engagement receiving member 51, and the lower engaging portion 36 of the movable body 34 in the restricted state and the lower end engaging in the advanced state. The engagement of the receiving member 55 with the engagement receiving surface 58 restricts the opening and closing member 6 from rising.
[0049]
On the other hand, as shown by the two-dot chain line in FIG. 4, when the operator places his / her hand on the operating body 12 serving as a handhold and turns the operating body 12 upward (release operation) from the indoor side, the interlocking means 63 ( Since the intermediate restricting means 61 and the lower end restricting means 62 are both released from the restriction by the flexible member 65), the opening / closing body 6 can be lifted as it is, so that the restricting state of the operating body 12 and the movable body 34 is restricted. The change to the release state and the lifting of the opening / closing body 6 can be performed by one action of a standing natural body.
[0050]
That is, when the operating body 12 is rotated upward, the operating body 12 is released from the regulation, while the flexible member 65 in the pulled state is raised (pulled up), and the rotating body 31 is interlocked with the operating body 12. The movable body 34 is moved in the approaching direction by the rotation of the rotating body 31, and the regulation is released.
[0051]
In addition, even though the movable body 34 may be in the regulation release state in conjunction with the operation body 12, the operation body 12 is not in the regulation release state in conjunction with the movable body 34. Further, the movable body 34 automatically returns to the regulated state by the urging force from the urging means (not shown).
[0052]
As described above, according to the above-described embodiment, not only the security but also the lower end regulation is improved as compared with the case where the rise of the opening / closing body 6 is restricted only by the intermediate restrictor 61 or the lower end restrictor 62. It is not necessary to perform the release operation separately for both the means 62 and the intermediate regulating means 61, and when the lower end regulating means 62 is unintentionally released from the outdoor side, the intermediate regulating means 61 is also released. Can also be prevented.
[0053]
Further, by using a flexible member 65 having flexibility and flexibility as the interlocking means 63, the configuration can be simplified, the assembling work can be facilitated, the manufacturing cost can be reduced, and the opening and closing can be performed. The body 6 can be prevented from being damaged.
[0054]
Further, since the intermediate regulating means 61 including the operating body 12 and the engagement receiving body 51 is disposed so as not to be visible from the outside when the opening 3 is closed, the intermediate regulating means 61 is not seen from the outdoor when the opening 3 is closed. It has even better security.
[0055]
In addition, since the operating body 12 is accommodated in the accommodating portion 10 of the opening / closing body constituent member 8 during winding by the winding body 7, the winding diameter is not greatly increased due to the presence of the operating body 12. The opening / closing body 6 can be appropriately wound.
[0056]
Furthermore, not only can the operating body 12 be easily operated by the natural body while standing, but also when the rewinding by the winding body 7 is performed, the operating body 12 comes out of the housing portion 10 by the biasing force of the spring 16 and becomes a handle portion. Therefore, the operation body 12 can be easily put on the hand, and the operability is excellent.
[0057]
The lower end restricting means 62 is not limited to the one formed by the substantially disk-shaped rotating body 31 or the like. For example, as shown in FIG. The rotating body 71 may be provided, and the movable body 34 may be connected to both ends of the rotating body 71 via the connecting shaft 72. The lower end of the flexible member 65 of the interlocking means 63 is connected to one end of the rotating body 71 by being hooked on a pulley 73.
[0058]
Further, the intermediate regulating means 61 is not limited to the one constituted by the operating body 12 or the like which cannot be identified from the outside. For example, as shown in FIG. 11, the basic constitution is the same as the lower end regulating means 62. , A movable body 82 having an engaging portion 81, a rotating body 84 provided with two protrusions 87 and rotatable about a central axis 83, and an engagement having an engagement receiving surface 85 engaged with and disengaged from the engaging portion 81. It may be constituted by a receiving body 86 or the like. In addition, the rotating body 84 of the intermediate regulating means 61 is rotatable in the releasing direction from the indoor side.
[0059]
Further, the interlocking means 63 is not limited to the one composed of the flexible member 65 connected to the lower end regulating means 62 and the intermediate regulating means 61. For example, as shown in FIGS. It may be constituted by an elongated link member (for example, a metal link bar or the like) 91 having no property.
[0060]
The interlocking member 91 shown in FIG. 12 has a lower end connected to the rotating body 31 of the lower end restricting means 62 via a rotating shaft 92, and has a long hole 93 formed at the upper end formed by the rotation of the intermediate restricting means 61. The interlocking projection 94 of the moving body 84 is inserted. In this case, even if the rotating body 31 of the lower end regulating means 62 rotates and the interlocking member 91 rises, no force is transmitted from the intermediate interlocking member 91 to the rotating body 84 of the intermediate regulating means 61. Does not rotate, and the movable body 82 of the intermediate regulating means 61 remains in the regulated state.
[0061]
An interlocking member 91 shown in FIG. 13 has an upper end connected to a turning body 84 of the intermediate restricting means 61 via a turning shaft 92, and a lower end interlocking projection 94 formed of the turning body 31 of the lower end restricting means 62. Is inserted into a long hole 93 formed in an arc shape. In this case, even if the rotating body 31 of the lower end regulating means 62 rotates, no force is transmitted from the rotating body 31 to the interlocking member 91, so that the interlocking member 91 does not move upward and the movable body 82 of the intermediate regulating means 61. Remains in a regulated state.
[0062]
Although not shown, the flexible member 65 may be urged in the tension direction by a biasing means such as a spring so that the flexible member 65 does not expand due to aging. The 65 itself may have elasticity.
[0063]
Further, although not shown, a lowering extension for lowering the opening / closing body 6 may be formed on the flexible member 65 so that the opening / closing body 6 can be pulled down without stretching out. For example, a pull-down extension may be provided continuously at the lower end of the elongated member 66.
[0064]
On the other hand, the opening / closing device 1 is not limited to the window shutter device fixed around the opening 3, for example, other shutter devices fixed around other openings, door devices such as shutters, sliding doors, and the like. A blind device, a screen device, or the like, or a plurality of the same or different types of these devices may be arranged in parallel.
[0065]
When the shutter 6 is a shutter curtain, the configuration is not limited to a configuration using a plurality of slats and the like, a configuration using panels, pipes, sheets, and the like, a configuration in which these are appropriately combined, a single sheet member, A configuration formed by one sheet-like member may be used.
[0066]
Further, the storage method of the opening / closing body 6 is not limited to the winding type by rotation of the winding body 7 such as a winding shaft, but may be any type such as a folding type, a feeding type, and a separation polymerization type.
[0067]
Further, the contacted portion with which the lower end portion of the opening / closing body 6 contacts is not limited to the lower frame, but may be, for example, a protrusion protruding from a floor surface or a guide rail.
[0068]
Further, the opening / closing device 1 may be installed sideways so that the opening / closing body 6 moves in the left-right direction, and may be of a horizontal pulling type.
[0069]
【The invention's effect】
According to the first aspect of the present invention, not only is the security property superior to that in which the opening / closing body is restricted by only the intermediate regulating means or only the lower regulating means, but also both the lower regulating means and the intermediate regulating means are improved. On the other hand, there is no need to separately perform the release operation, and it is possible to prevent the intermediate restriction means from being released when the lower end restriction means is unintentionally released.
[0070]
According to the second aspect of the invention, the lower end restricting means is pulled and lifted in accordance with the release of the restriction of the intermediate restricting means to release the restriction of the lower end restricting means. By using a flexible member that is not released from the regulation, the configuration can be simplified.
[0071]
According to the third aspect of the present invention, the flexible member is a flexible and flexible elongated member whose lower end is connected to the lower end regulating means and whose upper end is connected to the intermediate regulating means. The opening / closing body can be prevented from being damaged by the sex member.
[Brief description of the drawings]
FIG. 1 is a perspective view of an opening and closing device according to an embodiment of the present invention as viewed from the inside of a room.
FIG. 2 is a perspective view showing an intermediate regulating means of the opening and closing device.
FIG. 3 is a side view showing a state in which the opening / closing body of the opening / closing device is wound up.
FIG. 4 is a side view showing a state where the opening / closing body of the opening / closing device is rewound.
FIG. 5 is a side view showing a state in which the opening / closing body of the opening / closing device is lifted by an intermediate regulating means.
FIG. 6 is a sectional view of the opening and closing device.
FIG. 7 is a diagram showing the mounting base of the opening and closing device as viewed from the inside of the room.
FIG. 8 is a sectional view of a mounting base of the opening and closing device.
FIG. 9 is a schematic diagram showing a lower end regulating means of the opening and closing device.
FIG. 10 is a view showing a modification of the lower end regulating means of the opening and closing device.
FIG. 11 is a view showing a modification of the intermediate regulating means of the opening and closing device.
FIG. 12 is a diagram showing a modification of the interlocking means of the opening and closing device.
FIG. 13 is a diagram showing another modification of the interlocking means of the opening and closing device.
[Explanation of symbols]
1 Opening / closing device 3 Opening 6 Opening / closing body 61 Intermediate regulating means 62 Lower end regulating means 63 Interlocking means 65 Flexible member 66 Slender member

Claims (3)

An opening / closing body that moves up and down along the opening to open and close the opening;
Lower end regulating means for regulating the rise of the opening and closing body at the lower end side position of the opening and closing body when closing the opening,
Intermediate regulating means for regulating the elevation of the opening / closing body at a vertically intermediate position of the opening / closing body when the opening is closed,
An opening / closing device comprising: an interlocking unit that releases the regulation of the lower end regulation unit in response to the regulation release of the intermediate regulation unit and does not release the regulation of the intermediate regulation unit in response to the regulation release of the lower end regulation unit. . The interlocking means is constituted by a flexible member connected to the lower end regulating means and the intermediate regulating means,
The flexible member is pulled and lifted in accordance with the release of the regulation of the intermediate regulating means to lift and regulate the lower end regulating means. 2. The switchgear according to claim 1, wherein the means is not released. 3. The opening / closing device according to claim 2, wherein the flexible member is a flexible and flexible elongated member having a lower end connected to the lower end regulating means and an upper end connected to the intermediate regulating means. .

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