JP6802546B2 - Lifting window device - Google Patents

Description

The present invention relates to, for example, an elevating window device installed in an opening provided on a wall surface, and particularly relates to a device devised so that maintenance such as replacement or repair of members can be easily performed.

For example, Patent Document 1 and Patent Document 2 disclose the configuration of a conventional elevating window device.
First, the draft chamber described in Patent Document 1 has a main body provided with an opening, and an upper door and a lower door are installed in the opening. The frames installed on the left and right sides of the opening are provided with a guide groove for the upper door and a guide groove for the lower door, and the upper door and the lower door can be raised and lowered along the guide groove. It has become.

The upper door is a frame-shaped frame with a transparent plate attached, and sliders engaged with the guide grooves are projected on the left and right sides of the frame. The lower door is a frame-shaped frame equipped with two sliding transparent plates. The lower door is suspended from a pulley and is connected to balance weights installed on both sides in the width direction on the back side of the main body via suspension belts installed on both sides in the width direction. The balance weight balances the left and right sides of the lower door so that the lower door can be raised and lowered smoothly. Further, the balance weight is used to balance the lower door so that it can be stopped at an arbitrary position, so that the lower door can be raised and lowered regardless of the weight of the lower door. Further, on the left and right sides of the frame, guide rollers and fall prevention devices that roll in the guide groove are installed.

The fall prevention device includes a block fixed to the frame, a holder slidably installed up and down with respect to the block, and a safety brake claw rotatably installed above the block of the holder. It is composed of a compression spring that urges the holder downward with respect to the block. In a state where the lower door and the balance weight are connected by the hanging belt, the compression spring is compressed by the weight of the lower door, and the safety brake claw rotates downward in the frame of the lower door. It is in a state of being housed in. On the other hand, when the suspension belt is cut, the holder is pushed down relative to the block by the elastic force of the compression spring, and the safety brake claw is urged by the block to lower the above. It rotates and protrudes to the left and right of the door. The rotating / protruding safety brake claw bites into the frame of the opening, thereby preventing the lower door from falling.

Further, the fume hood described in Patent Document 2 has a housing, and a fixed glass plate and a front door that can be raised and lowered are installed in the opening of the housing. End members protruding to the left and right are installed on the front door. In addition, fall prevention devices are installed on the left and right sides of the front door. The fall prevention device has a holder member, and the end member is installed in the holder member so as to be movable in the vertical direction. Further, a locking claw is rotatably installed on the upper side of the end member of the holder member. Further, an elastic member is inserted between the lower side of the end member and the holder member. Further, the holder member is connected to the weight via a suspension wire material suspended from the pulley, and by balancing the weight and the front door, the user can move the front door up and down with a light force. It has become.
Further, the fall prevention device is provided with a guide roller as a guide member in order to smoothly move the front door. Rail members are installed on the left and right sides of the opening, and the guide rollers are rolled in the holding grooves formed in the rail members.

In a state where the holder member and the weight are connected by the suspension wire, the elastic member is compressed by the weight of the weight, and the end member is moved downward with respect to the holder member. The engaging claw is rotated downward and housed in the fall prevention device. When the suspension wire is cut, the end member is moved upward with respect to the holder member by the elastic force of the elastic member, and the engaging claw is rotated / projected toward the rail member by the end member. Then, the engaging claw is engaged with the rail member to prevent the front door from falling.

Japanese Patent No. 35533555 Japanese Patent No. 6037785

However, the conventional configuration has the following problems.
That is, in the draft chamber described in Patent Document 1, if the fall prevention device and the suspension belt are arranged inside the left and right frames of the opening and the lower door is not removed from the main body, the fall prevention device and the above-mentioned fall prevention device and , The maintenance work such as replacement and repair of the hanging belt cannot be performed, and the maintenance work is very troublesome.
Further, also in the case of the fume hood described in Patent Document 2, if the fall prevention device and the suspension wire material are arranged inside the rail member and the front door is not removed from the housing, the fall prevention device and the suspension wire material The configuration is such that maintenance work such as replacement and repair cannot be performed, and maintenance work is still very troublesome.

The present invention has been made based on such a point, and an object of the present invention is to provide an elevating window device capable of easily performing maintenance such as replacement and repair of members.

The elevating window device according to claim 1 for solving the above problems includes a window frame composed of a window frame main body and a lid material detachably installed on the front side of the window frame main body, and the inside of the window frame. The lid is provided with an elevating window installed so as to be able to move up and down, and a counter weight installed in the window frame main body and connected to the elevating window via a connecting body to urge the elevating window in the ascending direction. By removing the material, the connecting body and the counter weight can be exposed , the elevating window and the counter weight are connected in a loop through the connecting body, and the connecting body is above the elevating window and the counter weight. It is composed of an upper connecting body which is connected and wound around the upper rotating body, and a lower connecting body which connects the lower side of the elevating window and the counter weight and is wound around the lower rotating body. A part of the lower connecting body is an elastic member .
The elevating window device according to claim 2 is the elevating window device according to claim 1, wherein the connecting body and the counterweight are installed on both left and right sides of the elevating window, respectively. It is a thing.
Further, the elevating window device according to claim 3 is the elevating window device according to claim 1 or 2, in which the elevating window falls when the connection with the counterweight is impaired. A fall prevention means is installed to prevent the fall prevention means, and the fall prevention means can also be exposed by removing the lid material .
Further, the elevating window device according to claim 4 is the elevating window device according to claim 3, wherein the fall prevention means is installed at the center of the elevating window in the vertical direction, and is located on the upper and lower ends of the elevating window. Each is characterized by having a guide installed .
Further, the elevating window device according to claim 5 is the elevating window device according to claim 3 or 4, wherein the fall prevention means can be moved to a base attached to the elevating window and to the base. From a slider that is installed and one end is connected to the counter weight side via the connecting body and the other end is connected to the base via an elastic member, and an engaging claw oscillatingly attached to the base. The slider is always urged toward the anti-engagement claw side against the urging force of the elastic member by the counter weight, and when the connection by the connecting body is impaired, the slider is elastic. The engaging force is moved in the direction of the engaging claw by the urging force of the member, and the engaging claw is swung by contacting the engaging claw, and the engaging claw is engaged with the window frame side of the elevating window. It is characterized in that it prevents the fall .
Further, the elevating window device according to claim 6 is the elevating window device according to claim 5, wherein the slider, the elastic member, and the engaging claw are previously incorporated in the base and unitized. It is characterized by.

As described above, according to the elevating window device according to claim 1, a window frame composed of a window frame main body and a lid material detachably installed on the front side of the window frame main body, and inside the window frame. The lid material includes an elevating window installed so as to be able to elevate, and a counter weight installed in the window frame main body and connected to the elevating window via a connecting body to urge the elevating window in the ascending direction. Since the connecting body and the counter weight can be exposed by removing the above, maintenance such as replacement and repair of the members arranged in the window frame can be easily performed.
Further, according to the elevating window device according to claim 2, in the elevating window device according to claim 1, since the connecting body and the counterweight are installed on the left and right sides of the elevating window, respectively, the elevating and lowering is performed. The window can be raised and lowered stably and smoothly.
Further, according to the elevating window device according to claim 3, in the elevating window device according to claim 1 or 2, the elevating window and the counterweight are connected in a loop through the connecting body. Therefore, it is possible to prevent malfunctions and failures by preventing the impact on the connecting body and the loosening of the connecting body due to the sudden stop of the elevating window and the counter weight.
Further, the elevating window device according to claim 4 is the elevating window device according to claim 3, wherein the connecting body connects the elevating window and the upper side of the counter weight and is wound around the upper rotating body. Since it is composed of a body, a lower connecting body that connects the lower side of the elevating window and the counter weight and is wound around a lower rotating body, the elevating window can be raised and lowered stably and smoothly. Can be done.
Further, the elevating window device according to claim 5 is the elevating window device according to any one of claims 1 to 4, since a part of the connecting body is an elastic member, so that a constant tension is applied. By doing so, it is possible to further prevent the impact on the connecting body and the loosening of the connecting body due to the sudden stop of the elevating window and the counter weight, and it is possible to surely prevent malfunction and failure.
Further, the elevating window device according to claim 6 is the elevating window device according to any one of claims 1 to 5, when the elevating window is impaired in connection with the counter weight. A fall prevention means is installed to prevent the elevating window from falling, and the fall prevention means can also be exposed by removing the lid material, so that maintenance such as replacement or repair of the fall prevention means can be easily performed. be able to.
Further, the elevating window device according to claim 7 is the elevating window device according to claim 6, wherein the fall prevention means is installed at the center of the elevating window in the vertical direction, and is located on the upper and lower ends of the elevating window. Since each guide is installed, the fall prevention means can be easily replaced or repaired without removing the elevating window.
Further, the elevating window device according to claim 8 is the elevating window device according to claim 6 or 7, wherein the fall prevention means can be moved to a base attached to the elevating window and to the base. From a slider that is installed and one end is connected to the counter weight side via the connecting body and the other end is connected to the base via an elastic member, and an engaging claw that is swingably attached to the base. The slider is always urged toward the anti-engagement claw side against the urging force of the elastic member by the counter weight, and when the connection by the connecting body is impaired, the slider is elastic. Since the elevating window is prevented from falling by being moved in the direction of the engaging claw by the urging force of the member and swinging and engaging with the window frame side, the elevating window has a simple configuration. Can be prevented from falling.
Further, the elevating window device according to claim 9 is the elevating window device according to claim 8, because the slider, the elastic member, and the engaging claw are incorporated in the base in advance and unitized. , The maintenance of the elevating window device can be facilitated.

It is a figure which shows the 1st Embodiment of this invention, and is the front view of the elevating window device. 2 (a) is a cross-sectional view taken along the line IIa-IIa of FIG. 1, and FIG. 2 (b) is a cross-sectional view taken along the line IIb-IIb of FIG. 1, which shows a first embodiment of the present invention. 3A is a diagram showing a first embodiment of the present invention, in which FIG. 3A is an enlarged view of a portion IIIa of FIG. 2A and a lid material is separated from the window frame main body, and FIG. 3B is a diagram. FIG. 2B is an enlarged view of part IIIb of FIG. 2B in a state where the lid material is separated from the window frame main body. It is a figure which shows the 1st Embodiment of this invention, and is the IV-IV sectional view of FIG. It is a figure which shows the 1st Embodiment of this invention, and is the front view of the elevating assisting means. It is a figure which shows the 1st Embodiment of this invention, and is the VI-VI arrow view of FIG. It is a figure which shows the 1st Embodiment of this invention, and is the exploded perspective view of the fall prevention means. 8 (a) is a side view of a fall prevention means in a non-operating state, and FIG. 8 (b) is a side view of a fall prevention means in an operating state, showing a first embodiment of the present invention. It is a figure which shows the 2nd Embodiment of this invention, and is the front view of the elevating window device. It is a figure which shows the 2nd Embodiment of this invention, and is the XX sectional view of FIG.

Hereinafter, the first embodiment of the present invention will be described with reference to FIGS. 1 to 8. In this first embodiment, as shown in FIG. 1, the elevating window device 5 is installed in the opening 3 of the wall 1 that covers the manufacturing line or the transport line.
The elevating window device 5 includes a window frame 7, a fixed window 9 installed on the upper side of the window frame 7, and an elevating window 11 installed inside the window frame 7 so as to be able to move up and down in the vertical direction in FIG. It is composed of the elevating assisting means 15 and 15 which are installed on both the left and right sides in FIG. 1 in the window frame 7 and assist the elevating operation of the elevating window 11.

As shown in FIGS. 1 to 3, the window frame 7 is installed on both sides of the window frame main body 21 and the width direction (left-right direction in FIG. 2) on the front side (lower side in FIG. 2) of the window frame main body 21. It is composed of the lid materials 23 and 23. As shown in FIGS. 1 and 2, the window frame main body 21 includes the outer frame 25 and the elevating assisting means accommodating members 27 installed on both sides of the outer frame 25 in the width direction (left-right direction in FIG. 1). It is composed of 27 and. The outer frame 25 has a configuration in which an upper frame member 29, a lower frame member 31, a right side frame member 33, and a left side frame member 35 having the same cross-sectional shape are combined and fixed in a quadrangular frame shape.

The elevating assisting means accommodating member 27 has a cross-sectional shape as shown in FIGS. 2 and 3, and an elevating assisting means accommodating portion 37 is provided inside. Further, the lid material 23 is detachably installed on the front side (lower side in FIG. 3) of the window frame main body 21 so as to close the elevating assisting means accommodating portion 37. The lid material 23 is fixed to the outer frame 25 by screwing a plurality of lid material fixing screws 39 into the outer frame 25 through through holes 40 formed in the lid material 23. By removing the lid material 23, the elevating assisting means accommodating portion 37 can be exposed.

Further, as shown in FIGS. 1 and 4, a fixed window installation frame 41 is installed on the upper side in FIG. 1 between the elevating assisting means accommodating members 27, 27. The fixed window installation frame 41 is a combination of the upper fixed window frame material 43a, the lower fixed window frame material 43b, the right side fixed window frame material 43c, and the left side fixed window frame material 43d in a quadrangular frame shape. It is welded and fixed. As shown in FIG. 2, the upper fixed window frame material 43a, the lower fixed window frame material 43b, the right fixed window frame material 43c, and the left fixed window frame material 43d are on the back side (upper side in FIG. 2). A convex portion 45 for holding a fixed window is formed in each of the above. Further, a groove 47 is provided on the front side (lower side in FIG. 2) of the upper fixed window frame material 43a, the lower fixed window frame material 43b, the right side fixed window frame material 43c, and the left side fixed window frame material 43d. A fixed window holding member 49 is engaged with the groove 47. The outer peripheral side of the fixed window 9 is a fixed window holding convex portion 45 of the upper fixed window frame material 43a, the lower fixed window frame material 43b, the right side fixed window frame material 43c, and the left side fixed window frame material 43d. It is held by the fixed window installation frame 41 by being inserted between the fixed window holding member 49 and the fixed window holding member 49.
Further, as shown in FIGS. 2 and 3, the fixed window installation frame 41 is fixed to the elevating assisting means accommodating members 27, 27 by a plurality of screws 50.
The right-side fixed window frame material 43c and the left-side fixed window frame material 43d are extended to the lower side of the elevating window device 5 as shown in FIGS. 2 (b) and 3 (b).

For example, as shown in FIGS. 1 and 4, the elevating window 11 has an outer frame 51. The outer frame 51 is welded and fixed by combining the upper frame material 53 for the elevating window, the lower frame material 95 for the elevating window, the right frame material 57 for the elevating window, and the left frame material 59 for the elevating window in a quadrangular frame shape. It has a structured structure. An elevating window plate 61 is installed inside the outer frame 51. The upper frame material 53 for the elevating window, the lower frame material 55 for the elevating window, the right frame material 57 for the elevating window, and the left frame material 59 for the elevating window are on the front side (lower side in FIG. 3) for the elevating window. A plate holding convex portion 63 is formed. Further, a groove 65 is formed on the upper side in FIG. 3 of the upper frame material 53 for the elevating window, the lower frame material 55 for the elevating window, the right frame material 57 for the elevating window, and the left frame material 59 for the elevating window. An elevating window plate holding member 67 is engaged with the groove 65. The elevating window plate 61 is held by the outer frame 51 by interposing the outer peripheral side thereof between the elevating window plate holding convex portion 63 and the elevating window plate holding member 67.
Further, a handle 75 is installed on the lower frame member 59 for the elevating window.

Further, as shown in FIGS. 2 and 3, a guide rail 81 is extended and formed in the elevating assisting means accommodating member 27 in a direction perpendicular to the paper surface in FIG.

Upper elevating window side guides 91 and 91 are installed on both left and right sides of the upper end side of FIG. 1 of the elevating window 11, and lower elevating window side guides are installed on both left and right sides of the lower end side of FIG. 1 of the elevating window 11. 93 and 93 are installed. A guide engaging recess 95 is formed in the upper elevating window guide 91 and the lower elevating window side guide 93. As shown in FIG. 3, the guide engaging recess 95 of the upper elevating window guide 91 and the lower elevating window side guide 93 is engaged with the tip ends of the guide rails 81 and 81. The elevating window 11 is elevated and lowered along the guide rails 81 and 81 via the upper elevating window side guides 91 and 91 and the lower elevating window side guides 93 and 93.

As shown in FIG. 5, the elevating assisting means 15 is a chain 105 as an upper connecting body that connects the counterweight 101, the fall prevention means 103, and the counterweight 101 and the fall prevention means 103 on the upper side in FIG. And the chain 107 as a part of the lower connecting body connecting the counterweight 101 and the falling prevention means 103 on the lower side in FIG. 5, and the upper sprocket 109 as the upper rotating body around which the chain 105 is wound. And the lower sprocket 111 around which the chain 107 is wound. The upper sprocket 109 and the lower sprocket 111 are rotatably installed on the elevating assisting means accommodating member 27. The counterweight 101, the fall prevention means 103, the chain 105, and the chain 107 are connected in a loop.

As shown in FIGS. 1 to 3, the counterweight 101 is on the anti-elevating door side of the elevating assisting means accommodating portion 37 (on the right side of the elevating assisting means accommodating portion 37 on the right side in FIG. 2, and on the left side in FIG. 2). It is installed on the left side of the accommodation unit 37 so that it can be raised and lowered. Further, a weight-side screw member 113 is fixed to the upper end side of the counterweight 101 in FIG. 5, and a chain-side screw member 115 is fixed to the end of the chain 105 on the counterweight side (right side in FIG. 5). Has been done. The counterweight 101 and the chain 105 are connected by screwing the weight-side screw member 113 and the chain-side screw member 115 to both ends of the long nut 117.

Further, the weight side screw member 119 is also fixed to the lower end side of the counter weight 101 in FIG. 5, and the chain side screw member 121 is fixed to the end of the chain 107 on the counter weight side (right side in FIG. 5). Has been done. The counterweight 101 and the chain 107 are connected by screwing the weight-side screw member 119 and the chain-side screw member 121 to both ends of the long nut 123.
By rotating the long nut 123, the amount of screwing of the weight side screw member 119 and the chain side screw member 121 with respect to the long nut 123 can be adjusted, whereby the chain 105, The tension of 107 and the coil spring 171 described later is adjusted.

Further, as shown in FIG. 1, the fall prevention means 103 and 103 are installed in the width direction of the elevating window 11 (both sides in the left-right direction in FIG. 1) and at the center of the elevating window 11 in the vertical direction in FIG. There is. As shown in FIGS. 6 and 7, the fall prevention means 103 has a base 131. The base 131 is composed of a substrate 133 fixed to the elevating window 11 and a slider mounting portion 135 having an L-shaped cross section erected from the substrate 133. As shown in FIGS. 5 and 7, the base 131 is screwed into the elevating window 11 through the through holes 134 and 134 formed in the substrate 133 to form the elevating window 11. It is stuck.

Further, there is a slider 137, and the slider 137 is installed on the slider mounting portion 135 so as to be movable in the vertical direction in FIG. As shown in FIG. 7, elongated holes 139 and 139 are formed in the slider 137, and tubular slider support members 141 and 141 are incorporated in the elongated holes 139 and 139. By screwing the slider support screws 142, 142 into the slider mounting portion 135 through the slider support members 141, 141, the slider 137 is movably attached to the slider mounting portion 135 in the vertical direction in FIG. ing. The slider 137 moves in the vertical direction in FIG. 5 within the range of the elongated holes 139 and 139.

Further, there is an elastic member 143 for the slider, and the upper end of the elastic member 143 for the slider in FIG. 7 is fixed to the lower end side in the middle of FIG. 7 of the slider 137, and the lower end of the elastic member 143 for the slider in FIG. The slider mounting portion 135 is fixed to the lower end side in FIG. 7. The slider 137 is urged toward the lower side in FIG. 7 by the elastic member 143 for the slider. The upper end of the elastic member 143 for the slider in FIG. 7 is formed by screwing the fixing screw 145 to the lower end side in FIG. 7 of the slider 137 through the hook portion 147 on the upper end side of the elastic member 143 for the slider and the spacer 149. It is fixed. Further, at the lower end of FIG. 7 of the elastic member 143 for the slider, the fixing screw 151 is screwed into the lower end side of FIG. 7 of the slider mounting portion 135 through the lower end side hook portion 153 and the spacer 155 of the elastic member 143 for the slider. It is fixed by doing.

Further, an engaging claw 157 is oscillatingly installed on the slider mounting portion 135. That is, a through hole 159 is formed on the upper side of the engaging claw 157 in FIG. 7, and the bearing member 161 is built in the through hole 159. Then, by screwing the fixing screw 163 into the slider mounting portion 135 through the bearing member 161 so that one end of the engaging claw 157 is rotatably fixed to the slider mounting portion 135. Further, an arcuate through hole 165 is formed in the engaging claw 157. A cylindrical bearing member 167 is incorporated in the arc-shaped through hole 165. Then, by screwing the fixing screw 169 into the slider mounting portion 135 through the bearing member 167, the other end of the engaging claw 157 is attached to the slider mounting portion 135. The engaging claw 157 swings within the range of the arc-shaped through hole 165.
As described above, the fall prevention means 103 is configured as a unit incorporated in the base 131.

Further, as shown in FIG. 6, the upper end side of the slider 137 in FIG. 6 is connected to the chain 105. Further, the lower end side of the slider mounting portion 135 in FIG. 6 is connected to the chain 107 via a coil spring 171 as a part of the elastic member of the lower connecting body. That is, the chain 107 and the coil spring 171 are combined to function as the lower connecting body 172.

As shown in FIG. 8A, the slider 137 is constantly moved upward in the middle of FIG. 8A against the elastic force of the elastic member 143 for the slider by the counterweight 101. There is. At this time, since the center of gravity of the engaging claw 157 is on the lower middle side in FIG. 8 (a), the tip side faces the lower middle side in FIG. 8 (a) with the fixing screw 163 as a fulcrum, and the fall prevention means. It is in a state of being housed in 103.
On the other hand, for example, when the chain 105 is cut, as shown in FIG. 8B, the slider 137 is moved to the lower middle side in FIG. 8B by the elastic member 143 for the slider. The engaging claw 157 is brought into contact with the upper end side in FIG. 8 (b). As a result, the engaging claw 157 is swung counterclockwise in FIG. 8 (b).
Due to the swing of the engaging claw 157 in the counterclockwise direction in FIG. 8 (b), the tip side (lower middle side in FIG. 8 (b)) of the engaging claw 157 is on the back side (middle right side in FIG. ), And is engaged with the engaging through hole 173 formed in the elevating assisting means accommodating member 27. As a result, the elevating window 11 is prevented from falling.
The fall prevention means 103 is installed in the elevating window 11 separately from the upper elevating window guides 91 and 91 and the lower elevating window guides 93 and 93, and the elevating window 11 is not removed. Only the fall prevention means 103 can be removed.

Next, the operation by this first embodiment will be described.
The elevating window 11 is manually elevated and lowered in the vertical direction in FIG. 1 by the user. The elevating window 11 is balanced by the counterweight 101 and is stopped at an arbitrary position.

As shown in FIG. 8A, the fall prevention means 103 is always in a state in which the engaging claw 157 is housed with the tip end side toward the middle and lower sides of FIG. The windows 11 are allowed to move up and down.
For example, when the chain 105 is cut, as shown in FIG. 8B, the slider 137 is moved to the lower middle side in FIG. 8B by the elastic member 143 for the slider, and the engaging claw 157 is moved. 8 (b) is abutted on the upper end side. As a result, the engaging claw 157 is urged and swung counterclockwise in FIG. 8 (b), and the tip side (middle lower side in FIG. 8 (b)) of the engaging claw 157 is the back side (FIG. 8). (B) It is projected to the middle right side) and is engaged with the engaging through hole 173 formed in the elevating assisting means accommodating member 27. As a result, the elevating window 11 is prevented from falling.

When performing maintenance work, the lid materials 23 and 23 of the window frame 7 are removed from the front side (front side in the middle of FIG. 1) of the window frame main body 21. As a result, the inside of the elevating assisting means accommodating portions 37, 37 can be completely exposed. In this state, maintenance work such as replacement and repair of the lifting assisting means 15 and 15 is performed.
Since the fall prevention means 103 is installed in the elevating window 11 separately from the upper elevating window guides 91 and 91 and the lower elevating window guides 93 and 93, the fall prevention means 103 is installed in the elevating window 11 without removing the elevating window 11. Only the preventive means 103 is removed for replacement or repair.

Next, the effect of this first embodiment will be described.
First, the maintenance work of the elevating assisting means 27, 27 can be easily performed. This is because by removing the lid members 23, 23 of the window frame 7, the inside of the elevating assisting means accommodating portions 37, 37, and by extension, the elevating assisting means 15, 15 can all be exposed. As a result, maintenance work such as replacement and repair of the lifting assisting means 15, 15, that is, the counterweight 101, the fall prevention means 103, the chain 105, the chain 107, the upper sprocket 109, and the lower sprocket 111 can be easily performed. be able to.
Further, since the chain 105, the lower connecting body 172, and the counterweight 101 are installed on both the left and right sides of the elevating window 11, the elevating window can be moved up and down stably and smoothly.
Since the fall prevention means 103 and 103 are installed on both sides of the elevating window 11 in the width direction (horizontal direction in FIG. 1) and in the center in the vertical direction in FIG. 1, the elevating window 11 should be supported in a well-balanced manner. It can be raised and lowered stably and smoothly.
Further, the fall prevention means 103 and 103 are installed on both sides of the elevating window 11 in the width direction (horizontal direction in FIG. 1) and in the center of the vertical direction in FIG. Since the upper elevating window guides 91 and 91 and the lower elevating window guides 93 and 93 are separately installed, only the fall prevention means 103 can be removed without removing the elevating window 11, and the fall can be easily performed. The preventive means 103 can be replaced or repaired.

Further, since the counterweight 101, the fall prevention means 103, the chain 105, and the chain 107 are connected in a loop, the elevating window 11 and the elevating window 11 when the elevating window 11 is moved up and down and stopped. It is possible to prevent the counterweight 101 from impacting the chains 105 and 107 and loosening the chains 105 and 107, thereby preventing malfunctions and failures of the elevating window device 5.
Further, the fall prevention means 103 is movably installed on the base 131 attached to the elevating window 11 and one end connected to the counter weight 101 side via the chain 107, and the other end is a slider. The slider 137 is connected to the base 131 via the elastic member 143, and the engaging claw 157 is swingably attached to the base 131. The slider 137 is always the counter weight. When the anti-engagement claw 157 side is urged against the urging force of the slider elastic member 143 by 101 and the connection by the chain 105 is impaired, the slider 137 is urged by the slider elastic member 143. A simple configuration because the elevating window 11 is prevented from falling by being moved in the direction of the engaging claw 157 and swinging to engage with the elevating auxiliary means accommodating member 27 of the window frame 7. Therefore, it is possible to prevent the elevating window 11 from falling.
Further, since the fall prevention means 103 is configured as a unit incorporated in the base 131, this facilitates maintenance of the elevating window device 5.

Further, since there is a coil spring 171 between the fall prevention means 103 and the chain 107, and the coil spring 171 is a part of the lower connecting body 172, a constant tension is applied to the coil spring 171. The impact on the chains 105 and 107 due to the sudden stop of the elevating window 11 and the counterweight 101 and the slackening of the chains 105 and 107 can be further prevented, and malfunctions and failures can be reliably prevented.
Further, since the chain 107 is wound around the upper sprocket 109 and the chain 109 of the lower connecting body 172 is wound around the lower sprocket 111, the elevating window 11 is stably and smoothly raised and lowered. be able to.

Next, a second embodiment of the present invention will be described with reference to FIGS. 9 and 10.
The elevating window device 201 according to the second embodiment employs an elevating window 203 having a configuration different from that of the elevating window 11 (shown in FIGS. 1 to 8) of the elevating window device 5 according to the first embodiment. There is.
The elevating window 203 has an outer frame 205. The outer frame 205 includes an upper frame material 211 for an elevating window, a lower frame material 213 for an elevating window, a right frame material 215 for an elevating window, and a left frame material 217 for an elevating window having a substantially U-shaped cross-sectional shape. Are combined in a quadrangular frame shape to form a welded and fixed structure. The elevating window plate 219 is held inside the outer frame 205. Further, the elevating window plate 219 is thicker than the elevating window plate 61 according to the first embodiment.
The same parts as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

Also in the case of this second embodiment, the same action / effect as that of the first embodiment is obtained.

The present invention is not limited to the first embodiment and the second embodiment.
In the first and second embodiments, an example in which a chain is used as a connecting body has been described, but a wire or the like may be used instead. In this case, a pulley or the like is used instead of the sprocket.
Further, in the first and second embodiments, the present invention has been described by exemplifying a case where the present invention is installed at an opening of a wall covering a production line or a transport line, but the present invention is not limited thereto. For example, it may be applied to a draft chamber.
In addition, various modifications are conceivable without being limited to the illustrated configuration.

The present invention relates to an elevating window device, and particularly to a device devised so that maintenance such as replacement or repair of a member can be easily performed. For example, the elevating window device installed in an opening provided on a wall surface. It is suitable for.

5 Lifting window device 7 Window frame 11 Lifting window 21 Window frame body 23 Lid material 91 Upper lifting window guide 93 Lower lifting window guide 101 Counterweight 103 Fall prevention means 105 Chain (upper connecting body)
107 Chain (part of lower connector)
109 Upper sprocket (upper rotating body)
111 Lower sprocket (lower rotating body)
131 Base 171 Coil spring (elastic member that is part of the lower coupling)
172 Lower connecting body 137 Slider 173 Engagement claw 201 Lifting window device 203 Lifting window

Claims (6)

A window frame composed of a window frame main body and a lid material detachably installed on the front side of the window frame main body, and
Elevating windows installed inside the above window frame so that they can be raised and lowered,
A counterweight that is installed in the window frame main body and is connected to the elevating window via a connecting body to urge the elevating window in the ascending direction.
Equipped with
By removing the lid material, the connecting body and the counterweight can be exposed .
The elevating window and the counterweight are connected in a loop via the connecting body.
The connecting body connects the upper elevating window and the upper side of the counterweight and is wound around the upper rotating body, and the elevating window and the lower side of the counterweight are connected and wound around the lower rotating body. It is composed of a lower connecting body and
An elevating window device characterized in that a part of the lower connecting body is an elastic member . In the elevating window device according to claim 1,
A lifting window device characterized in that the connecting body and the counterweight are installed on both left and right sides of the lifting window, respectively. In the elevating window device according to claim 1 or 2.
The elevating window is provided with a fall prevention means for preventing the elevating window from falling when the connection with the counterweight is impaired.
An elevating window device characterized in that the fall prevention means can also be exposed by removing the lid material . In the elevating window device according to claim 3,
The elevating window device is characterized in that the fall prevention means is installed at the center of the elevating window in the vertical direction, and guides are installed on the upper and lower ends of the elevating window. In the elevating window device according to claim 3 or 4.
The fall prevention means is movably installed on the base attached to the elevating window, one end is connected to the counterweight side via the connecting body, and the other end is connected to the base via an elastic member. It consists of a connected slider and an engaging claw that is swingably attached to the base.
The slider is always urged to the anti-engagement claw side against the urging force of the elastic member by the counter weight, and when the connection by the connecting body is impaired, the slider is urged by the urging force of the elastic member. The one that is moved in the direction of the engaging claw and abuts on the engaging claw to swing the engaging claw and engages the engaging claw with the window frame side to prevent the elevating window from falling. An elevating window device characterized by being. In the elevating window device according to claim 5.
An elevating window device characterized in that the slider, the elastic member, and the engaging claw are preliminarily incorporated in the base and unitized .

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