JP5380642B2 - Shutter - Google Patents

Description

  The present invention relates to a shutter having a mechanism for reducing an impact when opening and closing a shutter door.

  Conventionally, there is a shutter disclosed in Patent Document 1 as a shutter for reducing the impact when closing the shutter door. As shown in FIG. 9, the shutter 100 is provided with a braking mechanism 106 that receives the weight of the shutter door 102 when the shutter door 102 is closed. The braking mechanism portion 106 is slidably fitted on each of the front portions of the pair of guide rails 103 formed in an inverted U shape so that the contact receiving member 162 abuts against the shutter door 102 while the shutter door 102 is being moved. And a telescopic elastic member 161 having one end fixed in a groove provided in the guide rail 103 and the other end connected to the receiving member 162. According to this, when the shutter door 102 is closed, the elastic member 161 is pulled when the front end portion of the shutter door 102 comes into contact with the receiving member 162, and the weight of the shutter door 102 is received by the tensile elastic force of the elastic member 161. Since the closing operation speed of the shutter door 102 is sufficiently reduced, the shutter door 102 can be quietly closed without giving a large impact.

JP 2003-3769 A

  However, in the conventional shutter 100, in order to reduce the impact not only when the shutter door 102 is closed but also when the shutter door 102 is opened, the guide rail 103 is separated from the elastic member 161 on the front side of the guide rail 103. It is necessary to provide a similar elastic member 161 at the rear part. Then, the elastic member 161 and the contact receiving member 162 are provided at the front and rear portions of the guide rail 103 corresponding to the time when the shutter door 102 is closed and the time when the shutter door 102 is opened. The configuration becomes complicated and the cost increases. Further, when the contact receiving member 162 or the like is arranged on the front side, the appearance is not good and it is difficult to adopt it for furniture.

  Therefore, for example, one end of the elastic member 161 is fixed to the shutter door 102 and the other end of the shutter door 102 is fixed so that the movement of the shutter door 102 is braked when the shutter door 102 is closed and opened by the same elastic member 161. It is conceivable to fix it to the attached housing (see FIGS. 10A and 10B). However, depending on the mounting position of the elastic member 161, there is a problem that the elastic member 161 deeply enters the internal space 107 of the shutter 100 as the shutter door 102 is closed, and the internal arrangement is caught (FIG. 10A). The elastic force of the elastic member 161 is so strong that when the shutter door 102 is opened, the shutter door 102 moves to the closing side and cannot be completely held open (see FIG. 10B).

  The present invention has been made in view of the above circumstances, and in providing a mechanism for mitigating the impact when the shutter door is opened and closed by the same elastic member, the elastic member is prevented from entering the internal space and the shutter door is opened and closed. It is an object to provide a shutter that can be reliably held.

The shutter according to the present invention is:
A foldable shutter door is movably mounted between a pair of guide rails. When the shutter door is closed, the front portion of the shutter door is suspended downward, and when the shutter door is opened, the shutter door A shutter configured to hang downward at the rear,
A braking mechanism for receiving the weight of the shutter door when opening and closing the shutter door;
The braking mechanism includes an elastic member that can be expanded and contracted,
The elastic member has one end attached to the shutter door and the other end movably attached to the rail. When the shutter door is closed, the other end of the elastic member is pulled elastically during the closing movement of the shutter door. When the shutter door is opened, the other end of the elastic member is moved by the tensile elastic force of the elastic member during the opening movement of the shutter door even when the shutter door is opened. On the other hand, it is configured to be movable so as to be in the open operation braking posture moved to the movement limit.

  According to the above configuration, when the shutter door is closed, the elastic member becomes the closing operation braking posture, and the closing operation speed of the shutter door is sufficiently reduced by the tensile elastic force of the elastic member without giving a large impact. The shutter door can be closed gently. On the other hand, when the shutter door is opened, the elastic member is in the opening motion braking posture, and the opening operation speed of the shutter door is sufficiently decelerated by the tensile elastic force of the elastic member, and a large impact is applied even when the shutter door is opened. The shutter door can be opened gently without giving.

  The elastic member is connected to the other end of the elastic member so as not to enter deeply into the internal space surrounded by the shutter when changing to the closing operation braking posture when closing the shutter door and the opening operation braking posture when opening the shutter door. Is movable. Therefore, when the elastic member changes to each of the above postures when opening and closing the shutter door, the elastic member does not enter deeply into the internal space surrounded by the shutter. Therefore, when the shutter door is opened and closed, the elastic member is not caught by the arrangement of the internal space surrounded by the shutter, and the internal space can be secured widely.

  In addition, the elastic member has a closing operation braking posture when the other end moves to close the shutter door and an opening operation braking posture when the shutter door is opened, so that the tensile elastic force of the elastic member is too strong when the shutter door is opened and closed. Without any problem, the shutter door can be reliably opened and closed.

The pair of guide rails are formed in an inverted U-shape, and the shutter door that travels on the guide rail has its rear end moved laterally from the middle of the closing movement to the closing position, and the opening position from the middle of the opening movement. The rear end of the shutter door is configured to move vertically until
The rails are provided in a pair extending in the vertical direction in the vicinity of the outer peripheral position of the rear part of the pair of guide rails,
The elastic member has two pieces,
Each elastic member has one end attached to the outer surface of the rear end of the shutter door, and the other end attached to each of the rails, and has a lateral posture as the closing operation braking posture and a vertical orientation as the opening operation braking posture. It is desirable to be configured to be movable so as to be in a posture.

  According to this, when the shutter door is closed, the other end of the elastic member located at the lower limit (the other movement limit) of the rail is pulled upward along with the upward movement of the rear end of the shutter door. Move up. Subsequently, the other end of the elastic member is further pulled upward along with the lateral movement of the rear end of the shutter door, and moves to the upper limit (one movement limit) of the rail. Then, while the rear end of the shutter door moves laterally until the shutter door reaches the closed position, the elastic member is pulled in a horizontal posture. Therefore, the elastic member is prevented from entering deeply into the internal space surrounded by the shutter while the shutter door is closed.

  On the other hand, when the shutter door is opened, the rear end of the shutter door is moved downward from the lateral movement (vertical movement), and the other end of the elastic member located at the upper limit of the rail is moved downward along with the downward movement. Pulled to move down the rail. Subsequently, as the rear end of the shutter door moves downward, the other end of the elastic member is further pulled downward to move to the lower limit of the rail. The elastic member is pulled in a vertical orientation while the rear end of the shutter door moves downward until the shutter door reaches the open position. Therefore, the elastic member is prevented from entering deeply into the internal space surrounded by the shutter while the shutter door is opened.

  As described above, when the elastic member changes to each of the above postures when opening and closing the shutter door, the other end of the elastic member moves, so that the elastic member does not enter deeply into the internal space surrounded by the shutter. Therefore, when the shutter door is opened and closed, the elastic member is not caught by the arrangement of the internal space surrounded by the shutter, and the internal space can be secured widely.

  In addition, the elastic member has a horizontal posture when the other end moves to close the shutter door and a vertical posture when the shutter door is opened, so that the tensile elastic force of the elastic member does not become too strong when the shutter door is opened and closed. The shutter door can be reliably opened and closed.

  When the other end of the elastic member is attached to a slide member that is movable with low friction with respect to the rail having a stopper capable of setting a movement limit, the elastic member is used when the shutter door is opened and closed. The other end of the lens moves smoothly and assumes the above postures smoothly.

  When one end of the elastic member is attached via a hinge member so as to be swingable with respect to the shutter door, one end of the elastic member swings smoothly when the shutter door is opened and closed. The above postures are smoothly achieved.

  As described above, according to the shutter of the present invention, it is possible to reduce the impact at the time of opening and closing by reducing the moving speed of the shutter door when the shutter door is closed and opened by the same elastic member. Therefore, the shutter door can be opened and closed quietly, no large impact sound is generated, and no great impact is applied to each part, so that the durability of the shutter can be improved.

  In addition, since the elastic member does not enter deeply into the internal space surrounded by the shutter when opening and closing the shutter door, the internal space can be secured widely without the elastic member being caught by the arrangement in the internal space. it can. Furthermore, the elastic member has a closing operation braking posture when the other end moves to close the shutter door and an opening operation braking posture when the shutter door is opened, so that the tensile elastic force of the elastic member is too strong when the shutter door is opened and closed. Without any problem, the shutter door can be reliably opened and closed.

It is a perspective view which shows the external appearance of the shutter by embodiment. It is a figure which shows the state which closed the shutter door, The same figure (a) is sectional drawing seen from the side, The figure (b) is sectional drawing seen from back. It is a figure which shows the state which opened the shutter door, The figure (a) is sectional drawing seen from the side, The figure (b) is sectional drawing seen from back. It is sectional drawing which shows the state by which the shutter door was engage | inserted between a pair of guide rails. It is sectional drawing which shows the connection part of each slat by a hinge. It is sectional drawing which shows the attachment state of the guide roller with respect to a hinge. It is a perspective view which shows the part which attached the other end of the elastic member to the slide member provided in the rail. It is a top view which shows the part which attached the end of the elastic member to the hinge member provided in the shutter door rear-end part. It is a side view which shows what provided the braking mechanism when closing a shutter door in the conventional shutter. It is a figure for demonstrating the problem at the time of trying to implement | achieve braking at the time of opening and closing of a shutter door with the same elastic member, The same figure (a) is a side view which shows a mode that the elastic member penetrated deeply into internal space. FIG. 4B is a side view showing a state where the elastic member is too strong.

  As shown in FIGS. 1 to 3, the shutter 1 according to the embodiment is provided with a pair of guide rails 3 in a housing 10 whose front surface is open, and a shutter door 2 that can be bent between the pair of guide rails 3. It is attached so that it can run freely, and the front opening of the housing 10 is opened and closed by the shutter door 2. Referring to FIG. 4, the pair of guide rails 3 is configured by a U-shaped concave groove formed at an opposing position on the inner surface of the left and right side walls 11 of the housing 10. Each guide rail 3 is formed in an inverted U shape, and the shutter door rear end 20 moves laterally from the middle of the closing movement to the closing position of the shutter door 2 (see FIG. 2A), and the opening movement is performed. The shutter door rear end 20 is configured to move vertically from the middle to the open position (see FIG. 3A).

  Referring to FIG. 5, the shutter door is configured such that each slat 4 can be bent by connecting long sides of a plurality of rectangular flat slats 4 with hinges 5. Specifically, in the side grooves 51 on both sides of the hinge 5, convex portions 52 having an arcuate cross section serving as a pivotal support point for the slat 4 are formed, and the slats 4 are rotated around the convex portions 52 along the long sides. A recess 41 is formed to engage freely. Then, by inserting the slat 4 into the side groove 51 of the hinge 5 and engaging the concave portion 41 and the convex portion 52, the slat 4 has a predetermined angle with the engaging portion of the concave portion 41 and the convex portion 52 as a rotation fulcrum. It can be bent. Each hinge 5 is formed with an insertion hole 53. As shown in FIG. 6, the guide roller 21 is rotatably attached to the insertion holes 53 at both ends of the hinge 5 in the longitudinal direction. And the guide roller 21 is arrange | positioned by the pair of guide rail 3 formed in the housing | casing 10 so that rolling is possible (refer FIG. 4).

By the way, the shutter 1 is provided with a brake mechanism 6 for receiving the weight of the shutter door 2 when the shutter door 2 is opened and closed (see FIGS. 2 and 3). The braking mechanism unit 6 includes an elastic member 61 (extension spring) 61 having one end attached to the shutter door 2 and the other end movably attached to the rail 62. A pair of rails 62 are provided extending in the vertical direction in the vicinity of the outer peripheral position of the rear part of the pair of guide rails 3. The pair of rails 62 are attached to the left and right side walls 11 of the housing 10. The rail 62 has a concave groove to which a slide member 63 described later is attached so as to be able to run. Two elastic members 61 are provided, and one end of each elastic member 61 is attached to the approximate center of the outer surface of the shutter door rear end 20, and the other end is attached to each rail 62. Specifically, one end of each elastic member 61 is attached to a hinge member 65 provided on the shutter door 2 and can swing (see FIG. 8), and the other end of each elastic member 61 is It is attached to a slide member 63 provided on the rail 62 so as to move up and down along each rail 62 (see FIG. 7). A rolling element 64 is attached to the slide member 63 so as to move to the rail 62 with low friction. For example, the static friction coefficient is set to 0.05 or less, preferably 0.01 or less.
Referring to FIG. 7, a stopper 66 for setting the movement limit of the slide member 63 is provided on the lower side of the rail 62, whereby the effect of the elastic force of each elastic member 61, the movement posture, etc. are appropriately set. Can be adjusted. The stopper 66 is provided only on the lower side of the rail 62, but may be provided on the upper side.

  With the above configuration, when the shutter 1 is closed, the shutter 1 is elastically disposed at the lower limit position of the rail 62 with the upward movement of the rear end portion 20 of the shutter door with reference to FIG. The other end of the member 61 is pulled upward and moves upward of the rail 62. Subsequently, the other end of the elastic member 61 is further pulled upward with the lateral movement of the rear end portion 20 of the shutter door, and moves to the upper limit of the rail 62. Then, while the shutter door rear end 20 moves laterally until the shutter door 2 reaches the closed position, the elastic member 61 is pulled in a lateral posture (closed operation braking posture). Therefore, the elastic member 61 is prevented from entering deeply into the internal space 7 surrounded by the shutter 1 while the shutter door 2 is closed. The weight of the shutter door 2 is received when the shutter door 2 is closed by the tensile elastic force of the elastic member 61.

  On the other hand, when the shutter door 2 is opened, referring to FIG. 3, the rear end portion 20 of the shutter door is arranged at the upper limit position of the rail 62 as it moves downward from the horizontal movement to the vertical movement. The other end of the elastic member 61 is pulled downward and moves downward of the rail 62. Subsequently, as the shutter door rear end 20 moves downward, the other end of the elastic member 61 is further pulled downward to move to the lower limit of the rail 62. Then, while the shutter door rear end 20 moves downward until the shutter door 2 reaches the open position, the elastic member 61 is pulled in a vertical posture (open operation braking posture). Accordingly, the elastic member 61 is prevented from entering the internal space 7 surrounded by the shutter 1 while the shutter door 2 is opened. The weight of the shutter door 2 is received when the shutter door 2 is opened by the tensile elastic force of the elastic member 61.

  Further, since the other end of each elastic member 61 is attached to a slide member 63 provided so as to be movable with low friction with respect to each rail 62, the other end of each elastic member 61 is not opened when the shutter door 2 is opened and closed. It moves smoothly and takes the above postures smoothly. In addition, since one end of each elastic member 61 is attached via a hinge member 65 so as to be swingable with respect to the shutter door 2, one end of each elastic member 61 is smooth when the shutter door 2 is opened and closed. Oscillates smoothly to the above postures.

  Thus, when each elastic member 61 changes to each said attitude | position according to opening / closing of the shutter door 2 when opening / closing the shutter door 2, when the other end of each elastic member 61 moves up and down, each elastic member 61 does not enter deeply into the internal space 7 surrounded by the shutter 1. Therefore, when the shutter door 2 is opened and closed, the elastic member 61 is not caught on the arrangement of the internal space 7 and the internal space 7 can be secured widely. Further, each elastic member 61 moves in the horizontal direction (closed operation braking posture) when the other end moves to close the shutter door 2 and in the vertical posture (open operation braking posture) when opened, so that the shutter door 2 is opened. The opening and closing of the shutter door 2 can be reliably performed without the tension elastic force of each elastic member 61 being too strong when opening and closing.

  Further, according to the shutter 1 according to the present embodiment, the weight of the shutter door 2 when the shutter door 2 is opened and closed is received by the common elastic member 61, so that the shutter door 2 can be closed without increasing the number of parts. Even when the shutter door is opened, the moving speed of the shutter door 2 can be reduced to reduce the impact at the time of opening and closing. Accordingly, the shutter door 2 can be opened and closed quietly, no large impact sound is generated, and no great impact is applied to each part, so that the durability of the shutter 1 can be improved. Further, since the impact at the time of opening and closing the shutter door 2 can be mitigated by the common elastic member 61, the structure of the shutter 1 is not complicated, and the cost can be kept low. Further, the braking mechanism 6 is arranged on the rear side so that it cannot be seen from the appearance of the housing 10, so that the aesthetic appearance is good. Therefore, the shutter 1 can be easily applied to furniture and the like.

In the above-described embodiment, one end of each elastic member 61 is attached to the approximate center position of the shutter door rear end 20, but may be attached closer to each arrangement side. In this case, each elastic member 61 can be configured to be short.
Moreover, in the said embodiment, although the two elastic members 61 were provided, one piece may be sufficient.
Moreover, in the said embodiment, although the illustrated elastic member 61 is a tension spring, it is not restricted to this, Various elastic members, such as a rubber string and a cylinder mechanism, are applicable.
Furthermore, the shutter according to the present invention is not limited to the one illustrated in the above embodiment, and can be changed as appropriate.

DESCRIPTION OF SYMBOLS 1 Shutter 2 Shutter door 3 Guide rail 4 Slat 5 Hinge 6 Braking mechanism part 7 Internal space 10 Case 11 Side wall 20 Shutter door rear end part 21 Guide roller 41 Concave part 51 Side groove 52 Convex part 53 Insertion hole 61 Elastic member 62 Rail 63 Slide Member 64 Rolling element 65 Hinge member 66 Stopper

Claims (4)

A foldable shutter door is movably mounted between a pair of guide rails. When the shutter door is closed, the front portion of the shutter door is suspended downward, and when the shutter door is opened, the shutter door A shutter configured to hang downward at the rear,
A braking mechanism for receiving the weight of the shutter door when opening and closing the shutter door;
The braking mechanism includes an elastic member that can be expanded and contracted,
The elastic member has one end attached to the shutter door and the other end movably attached to the rail. When the shutter door is closed, the other end of the elastic member is pulled elastically during the closing movement of the shutter door. When the shutter door is opened, the other end of the elastic member is engaged with the other end of the rail by the tensile elastic force of the elastic member when the shutter door is opened. A shutter configured to be movable so as to have an open operation braking posture moved to a movement limit. The shutter according to claim 1,
The pair of guide rails are formed in an inverted U-shape, and the shutter door that travels on the guide rail has its rear end moved laterally from the middle of the closing movement to the closing position, and the opening position from the middle of the opening movement. The rear end of the shutter door is configured to move vertically until
The rails are provided in a pair extending in the vertical direction in the vicinity of the outer peripheral position of the rear part of the pair of guide rails,
The elastic member has two pieces,
Each elastic member has one end attached to the outer surface of the rear end of the shutter door, the other end attached to each of the rails, and has a lateral attitude as the closing action braking attitude and a vertical attitude as the opening action braking attitude. A shutter configured to be movable so that The shutter according to claim 1 or 2,
The other end of the elastic member is a shutter attached to a slide member that is movable with low friction with respect to the rail having a stopper that can set a movement limit. The shutter according to claim 1 or 2,
One end of the elastic member is a shutter attached via a hinge member so as to be swingable with respect to the shutter door.

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