JP6050655B2 - Fixed glass plate mounting structure - Google Patents

Description

  The present invention relates to a fixed glass plate mounting structure applied to a fume hood used in conducting chemical experiments and the like.

  Conventionally, the fume hood exhausts the air in the processing chamber inside the hood main body, opens the front door provided at the front opening of the hood main body, and supplies the air into the processing chamber. To conduct the experiment. In such a fume hood, on both side edges of the front opening of the hood body, door guide grooves are provided along the vertical direction, and both side edges of the open / close door are slidably accommodated in the door guide grooves, An open / close door is attached to be movable up and down (see, for example, Patent Document 1). Generally, such a door guide groove is formed in an extruded rail-like member extending in the up-down direction, and the rail-like member is provided with a similar groove in the vicinity of the door guide groove, A gallery plate (fixed glass plate) made of a transparent plate disposed at the upper edge of the front opening is held above the groove.

JP 2009-97775 A (page 6, FIG. 1)

  However, in the fume hood described in Patent Document 1, a fixed glass plate having a heavy weight is attached to an upper portion of a groove extending in the vertical direction at the time of manufacturing and assembling. This requires a plurality of workers, a person who supports the fixing glass plate, and a person who fixes the fixed glass plate to the hood main body using screws or the like, which not only complicates the assembly work but also increases the manufacturing cost.

  The present invention has been made paying attention to such problems, and it is possible to easily perform the mounting operation of the fixed glass plate provided above the opening on the front surface, and to mount the fixed glass plate which can reduce the manufacturing cost. The purpose is to provide a structure.

In order to solve the above problems, the fixed glass plate mounting structure of the present invention is:
A rail member formed by extrusion molding is disposed on the left and right edges of the opening, a rail groove extending in the vertical direction is formed in the rail member, and a fixed glass plate mounting structure for attaching a fixed glass plate to an upper portion of the rail groove. There,
A vertically long frame member fitted to the rail groove is provided at a lower portion of the rail groove, and left and right edges of the fixed glass plate are held at an upper portion of the rail groove, and left and right lower ends of the fixed glass plate are It is supported by the upper end of a vertically long frame member.
According to this feature, when the fixed glass plate is mounted on the rail member, the left and right lower ends of the fixed glass plate are supported on the upper end of the vertically long frame member fitted to the lower portion of the rail groove. Therefore, it is possible to easily perform the attaching operation of the fixed glass plate provided above the opening on the front surface, and to reduce the manufacturing cost.

The mounting structure of the fixed glass plate of the present invention is
The vertically long frame member is a resin member having elasticity.
According to this feature, since the vertically long frame member is elastically deformed, it becomes easy to fit the vertically long frame member into the rail groove of the rail member, and when the fixed glass plate is dropped from above the rail groove, the fixed glass plate Even if the left and right lower ends of the two collide with the upper end of the vertical frame member, the lower vertical frame member can absorb the impact force.

The mounting structure of the fixed glass plate of the present invention is
The fixed glass plate is fitted into an upper part of the rail groove in a state in which the left and right edges are sandwiched by a vertically long frame member having a substantially U shape in a cross-sectional view, and the vertically long plate having the same cross sectional shape as the vertically long frame member The frame member is fitted into a lower portion of the rail groove in an inverted state.
According to this feature, the vertical frame member fitted to the lower part of the rail groove and the vertical frame member fitted to the upper part of the rail groove have the same cross-sectional shape, and therefore formed by the same manufacturing process. The vertical frame member having the same cross-sectional shape can be used to hold the left and right edges of the fixed glass plate and support the left and right lower ends of the fixed glass plate, so that the manufacturing cost of the vertical frame member can be reduced.

The mounting structure of the fixed glass plate of the present invention is
The front and rear surfaces of the vertically long frame member have an inner surface of the rail groove regardless of whether they are fitted to an upper part of the rail groove or a lower part of the rail groove. A convex portion or a concave portion that is engaged with the concave portion or the convex portion formed in the above is provided.
According to this feature, the concave portion or the convex formed on the inner surface of the rail groove regardless of whether the rail groove is fitted to the upper portion of the rail groove or the lower portion of the rail groove. Since the projections or recesses on the front and rear surfaces of the vertically long frame member engaged with the portion are prevented from coming off, it is possible to prevent each vertically long frame member from falling off the rail groove.

The mounting structure of the fixed glass plate of the present invention is
The fixed glass plate is provided in an opening on the front side of the processing chamber in the fume hood, and the rail member is raised or lowered to open or close the opening on the front side of the processing chamber on the front side or the rear side of the rail groove. A sliding groove is provided in which the left and right edges of the front door are slid.
According to this feature, the rail member in which the rail groove for holding the fixed glass plate and the sliding groove for sliding the front door is formed by extrusion molding, and the rail member is formed by the fixed glass plate and the front surface. Since it can be used as a member for holding the door, the fume hood can be manufactured at low cost.

It is a perspective view which shows the fume hood in an Example. It is a front view which shows a fume hood. It is an AA vertical side view in FIG. 2 which shows a fume hood. It is a perspective view which shows a rail member. It is a perspective view which shows a vertically long frame member. It is a BB cross-sectional plan view in FIG. 2 which shows a longitudinally long frame member and a rail member. It is CC cross-sectional top view in FIG. 2 which shows a longitudinally long frame member and a rail member. It is a perspective view which shows the state in which a fixed glass plate is contact | abutted to the upper end of a vertically long frame member.

  EMBODIMENT OF THE INVENTION The form for implementing the attachment structure of the fixed glass plate which concerns on this invention is demonstrated below based on an Example.

  The fume hood according to the embodiment will be described with reference to FIGS. In the following description, the left side of FIG. 3 is the front side (front side) of the fume hood, and the lower side of FIG. 6 and FIG. 7 is the front side (front side) of the fume hood. The code | symbol 1 of FIG. 1 is a fume hood used when performing a chemical experiment etc. The fume hood 1 has a processing chamber 3 inside a housing 2 (see FIG. 3), and an exhaust device 4 for exhausting air in the processing chamber 3 is provided on the top of the housing 2. .

  As shown in FIGS. 2 and 3, a fixed glass plate 5 made of tempered glass or the like is fixed above the opening on the front side of the housing 2. A front door 6 that is raised and lowered to open and close the opening of the housing 2 is provided below the fixed glass plate 5. Further, the front door 6 has an elevating glass plate 7 made of tempered glass or the like similarly to the fixed glass plate 5, and the lower edge of the elevating glass plate 7 has a gripping side gripped by the user. 8 is attached. The user can open and close the opening of the housing 2 by grasping the gripping side 8 and raising and lowering the front door 6.

  Further, the front door 6 is suspended in a state where the left and right lower ends thereof are connected to the suspension wires 9 and 9 formed of wires or the like. As shown in FIG. 1, a pair of left and right suspension wires 9, 9 that suspend the front door 6 are provided on one side (the left side in this embodiment) of the housing 2 via a plurality of pulleys 10. It is connected to a weight 11 made of a heavy metal plate or the like. By balancing the weight 11 and the front door 6 with the same weight, the user can raise and lower the front door 6 with a light force.

  As shown in FIG. 2, the upper position on the front side of the housing 2 is covered with an openable / closable decorative panel 12. Further, by opening the decorative panel 12, maintenance of the suspended wire rod 9, the pulley 10, the exhaust device 4, the control board (not shown) and the like at the upper position of the housing 2 can be performed. Further, the decorative panel 12 is provided with a plurality of lamps 13 indicating the operating state of the fume hood 1, and a lighting board (not shown) for controlling the lighting of the lamps 13 is provided on the back side of the decorative panel 12. ing.

  As shown in FIG. 3, the fixed glass plate 5 and the front door 6 are held by a pair of left and right rail members 14 provided on the left and right sides of the opening of the housing 2. Further, the front door 6 is suspended from the suspension wire 9 via a fall prevention device 15 (see FIG. 7) disposed in the rail member 14. The fall prevention device 15 is provided at each of the left and right lower ends of the front door 6 and operates in an emergency such as when the suspension wire 9 is cut or the suspension wire 9 is detached from the weight 11. 6 is provided in order to prevent the fall of 6.

  In addition, the user inserts his / her hand into the processing chamber 3 in the state where the front door 6 is raised and opened to a predetermined opening (about one third). The experiment performed in the processing chamber 3 is performed while the exhaust device 4 is operated, and air is supplied into the processing chamber 3 from the opening below the front door 6, and Air is exhausted from the exhaust device 4. As described above, the air flowing in the processing chamber 3 always flows in one direction, and the gas generated in the processing chamber 3 does not flow backward toward the user. Furthermore, in this embodiment, the surface wind speed is secured at about 0.5 m / s.

  Further, when the front door 6 is opened beyond a certain opening amount, the air supply amount flowing from the opening below the front door 6 exceeds the exhaust amount of the exhaust device 4, and the air in the processing chamber 3 is directed toward the user side. There is a risk of backflow. In order to prevent this, a stopper member 16 that restricts the front door 6 from opening more than a certain opening amount is provided. The stopper member 16 is provided only on the left side of the left and right sides of the opening of the housing 2 (see FIG. 2). Further, when cleaning or maintenance in the processing chamber 3 is performed, if the stopper member 16 is operated, the restricted state of the front door 6 can be released, and the front door 6 can be fully opened.

  As shown in FIG. 3, two upper and lower baffle plates 19, which form an exhaust passage 18 for guiding the air in the processing chamber 3 to the exhaust device 4, are formed on the front side of the back plate 17 constituting the housing 2. 20 is attached. Of these baffle plates 19 and 20, the lower baffle plate 20 disposed on the lower side is attached via a cylindrical spacer member 21 provided on the front surface of the back plate 17. The upper baffle plate 19 disposed on the upper side is held by a holding frame 23 provided on the lower surface of the ceiling plate 22 constituting the housing 2, and the lower end edge of the upper baffle plate 19 of the lower baffle plate 20. It is held by a fixture 24 provided at the top.

  Next, the mounting structure of the fixed glass plate 5 will be described in detail with reference to FIGS. In addition, since the left and right rail members 14 to which the fixed glass plate 5 is attached have the same configuration, the rail member 14 disposed on the right side will be described below as an example.

  As shown in FIG. 4, the rail member 14 is a member that is formed by extrusion and extends in the vertical direction. The rail member 14 has the same cross-sectional shape from the upper end to the lower end. A slide groove 39 that accommodates the fall prevention device 15 so as to be slidable in the vertical direction is formed inside the rail member 14.

  As shown in FIG. 7, an opening 40 is formed on the side of the rail member 14 facing the front door 6, and the end member 32 of the front door 6 is introduced into the sliding groove 39 from the opening 40. And the front door 6 is hold | maintained at the sliding groove | channel 39 in the state which can be slid to an up-down direction via the fall prevention apparatus 15 to which the end member 32 of the right-and-left end part was attached.

  As shown in FIG. 6, the left and right upper end portions of the front door 6 are held by a guide member 61 having a substantially U shape in plan view. The guide member 61 is attached to the front arrangement groove 50 of the rail member 14 via an attachment fitting 62. Further, a locking frame 41 extending in the vertical direction to which the claw member 28 of the fall prevention device 15 is locked is fixed to the inner surface on the opposite side of the opening 40 of the rail member 14. The locking frame 41 is disposed in a side portion arranging groove 42 formed in the rail member 14.

  The rail member 14 is formed with a rail groove 63 for holding the fixed glass plate 5 behind the sliding groove 39. The rail groove 63 is substantially U-shaped in a plan view and is a groove extending from the upper end to the lower end of the rail member 14. Furthermore, the vertical dimension of the fixed glass plate 5 is a size that can cover the upper part of the opening of the housing 2 (see FIGS. 1 and 2), and the fixed glass plate 5 is located above the rail groove 63. It is arranged at the site.

  Further, the fixed glass plate 5 is fitted to the upper portion of the rail groove 63 in a state where the left and right edges are sandwiched by the vertically long frame members 64. In this embodiment, in the rail member 14, the rail groove 63 is formed on the rear side of the sliding groove 39, but the rail groove 63 may be formed on the front side of the sliding groove 39.

  As shown in FIG. 5, the vertically long frame members 64 and 65 are formed of an elastic synthetic resin such as polypropylene, have a substantially U shape in cross-sectional view, and are members formed by extrusion molding. The opening edges of the vertically long frame members 64 and 65 are provided with a protruding piece 66 for holding the fixed glass plate 5 in the front-rear direction, and the portion where the holding piece 66 is formed is made of an elastomer or the like. It is made of a synthetic resin having flexibility.

  Further, as shown in FIGS. 5 and 6, convex portions 67 are formed along the longitudinal direction on the front side and the rear side of the vertically long frame members 64 and 65. Furthermore, the inner surface of the rail member 14 before and after the rail groove 63 is formed with a recess 68 along the longitudinal direction to which the protrusion 67 of the vertically long frame members 64 and 65 is engaged. The protrusions 67 of the vertically long frame members 64 and 65 are engaged with the recesses 68 of the rail groove 63, so that the vertically long frame members 64 and 65 are difficult to be removed from the rail groove 63, and the fixed glass plate 5 is firmly held. be able to.

  Each of the front and rear inner surfaces of the rail groove 63 is formed with two concave portions 68 in the left-right direction. As will be described later, the vertically long frame member 65 is inverted and fitted into the rail groove 63. Also, the convex portion 67 of the vertically long frame member 65 is engaged with the concave portion 68 of the rail groove 63.

  As will be described later, when assembling the fume hood 1, when the fixed glass plate 5 is attached to the rail groove 63, the vertically long frame member 64 that sandwiches the left and right edges of the fixed glass plate 5 extends from the upper end of the rail member 14. It is inserted into the rail groove 63 and lowered to a predetermined position (see FIG. 8). When the vertically long frame member 64 is slid in the rail groove 63, a friction reducing convex portion 69 extending in the longitudinal direction on the inner surface of the rail groove 63 in order to reduce the sliding resistance of the vertically long frame member 64. Is provided.

  As shown in FIG. 7, the vertically long frame member 65 is fitted to the lower portion of the rail groove 63 in a state where it is inverted in the left-right direction. Note that the vertically long frame member 65 in the lower part uses a member having the same configuration as the vertically long frame member 64 that sandwiches the fixed glass plate 5. Further, the vertically long frame member 65 in the lower part is provided over the entire length of the lower part in the rail groove 63 than the part in which the vertical frame member 64 that sandwiches the left and right edges of the fixed glass plate 5 is disposed. Yes.

  When the fixed glass plate 5 is attached to the rail groove 63, the vertically long frame member 64 sandwiching the left and right edges of the fixed glass plate 5 is inserted into the rail groove 63 from the upper end of the rail member 14, and the vertically long frame member 64. And the left and right lower ends of the fixed glass plate 5 are lowered to a position where they are in contact with the upper ends of the vertically long frame members 65 in the lower part. Thus, the fixed glass plate 5 can be supported by the upper end of the vertically long frame member 65 in the lower part. Furthermore, in a state where the fixed glass plate 5 is temporarily supported by the vertically long frame member 65 in the lower portion, the fixed glass plate 5 can be screwed and fixed to a predetermined portion of the housing 2 using a screwing member.

  Further, since the vertically long frame member 65 is fitted to the lower portion of the rail groove 63, the lower portion of the rail groove 63 can be blinded, and the appearance can be improved. In the present embodiment, the vertically long frame member 65 is used as a blindfold for the lower portion of the rail groove 63, but after the fixed glass plate 5 is fixed to the housing 2, the vertically long frame member 65 of the lower portion is fixed to the rail groove 63. You may make it remove from.

  As described above, in the mounting structure of the fixed glass plate 5 in the present embodiment, the vertically long frame member 65 fitted to the rail groove 63 is provided in the lower portion of the rail groove 63, and the fixed glass plate is provided in the upper portion of the rail groove 63. The left and right edges of the fixed glass plate 5 are held and the lower left and right edges of the fixed glass plate 5 are supported by the upper ends of the vertically long frame members 65, so that the fixed glass plate 5 is installed on the rail member 14 when the fixed glass plate 5 is attached. In doing so, since the left and right lower ends of the fixed glass plate 5 are supported by the upper ends of the vertically long frame members 65 fitted into the lower portion of the rail groove 63, the fixed glass plates provided above the opening on the front surface of the housing 2 5 can be easily performed, and the manufacturing cost can be reduced.

  Further, since the vertically long frame members 64 and 65 are made of resin having elasticity, the vertically long frame members 64 and 65 are elastically deformed. Therefore, the vertically long frame members 64 and 65 are formed in the rail groove 63 of the rail member 14. When the fixed glass plate 5 is dropped from above the rail groove 63, even if the left and right lower ends of the fixed glass plate 5 collide with the upper end of the vertical frame member 65, the lower vertical frame member becomes lower. 65 can absorb the impact force.

  Further, the fixed glass plate 5 is fitted to the upper portion of the rail groove 63 in a state where the left and right edges are sandwiched by the vertically long frame member 64 having a substantially U shape in a cross sectional view, and has the same cross sectional shape as the vertically long frame member 64. The vertically long frame member 65 having the above is fitted to the lower part of the rail groove 63 in the inverted state, so that the vertically long frame member 65 fitted to the lower part of the rail groove 63 and the upper part of the rail groove 63 are fitted. Since the vertically long frame members 64 to be joined have the same cross-sectional shape, the vertical frame members 64 and 65 having the same cross-sectional shape formed by the same manufacturing process are used to sandwich the left and right edges of the fixed glass plate 5. Since the left and right lower ends of the fixed glass plate 5 can be supported, the manufacturing cost of the vertically long frame members 64 and 65 can be reduced.

  In addition, the front and rear surfaces of the vertically long frame members 64 and 65 are rails regardless of whether they are fitted to the upper part of the rail groove 63 or the lower part of the rail groove 63. When the convex portion 67 that is engaged with the concave portion 68 formed on the inner surface of the groove 63 is provided, when the upper portion of the rail groove 63 is fitted or when the lower portion of the rail groove 63 is fitted. In any of these states, the projections 67 on the front and rear surfaces of the longitudinal frame members 64 and 65 engaged with the recesses 68 formed on the inner surface of the rail groove 63 prevent the longitudinal frame members 64 from being removed. , 65 can be prevented from falling off from the rail groove 63.

  Further, the fixed glass plate 5 is provided in the opening on the front surface of the processing chamber 3 in the fume hood 1, and the rail member 14 is configured to open and close the opening on the front surface of the processing chamber 3 on the front side of the rail groove 63. By providing sliding grooves 39 on which the left and right edges of the front door 6 to be moved up and down are provided, a rail groove 63 for holding the fixed glass plate 5 and a sliding groove 39 on which the front door 6 slides are formed. Since the formed rail member 14 is formed by extrusion molding and can be used as a member for holding the fixed glass plate 5 and the front door 6, the fume hood 1 can be manufactured at low cost. .

  Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments, and modifications and additions within the scope of the present invention are included in the present invention. It is.

  For example, in the said Example, although this invention is applied to the attachment structure of the fixed glass plate 5 used for opening of the housing | casing 2 of the fume hood 1, this invention is not only the fume hood 1 but various sashes and windows. It can also be applied to a fixed glass plate mounting structure in a frame or a showcase.

  Moreover, in the said Example, although the vertically long frame member 65 of a lower part is fitted and attached to the rail groove 63, the aspect which attaches the vertically long frame member 65 of a lower part to the rail groove 63 is the aspect attached by fitting. In addition to the above, it may be attached using an adhesive or a screw.

  Moreover, in the said Example, the vertical frame member 65 of a lower part is provided over the full length of a lower part rather than the site | part in which the vertical frame member 64 which clamps the right-and-left edge of the fixed glass plate 5 in the rail groove 63 is arrange | positioned. However, the vertically long frame member 65 in the lower part does not need to be extended to the lower end of the rail groove 63 as long as the left and right lower ends of the fixed glass plate 5 can be supported.

  Moreover, in the said Example, the convex part 67 is provided in the front-and-back surface of the vertical frame members 64 and 65, and this convex part 67 becomes a mode engaged with the recessed part 68 formed in the inner surface of the rail groove | channel 63. However, a recessed part is provided in the front-and-back surface of the longitudinally long frame members 64 and 65, and this recessed part may become the aspect engaged with the convex part formed in the inner surface of the rail groove | channel 63.

DESCRIPTION OF SYMBOLS 1 Fume hood 5 Fixed glass board 6 Front door 14 Rail member 63 Rail groove 64,65 Vertical frame member 67 Convex part 68 Concave part

Claims (5)

A rail member formed by extrusion molding is disposed on the left and right edges of the opening, a rail groove extending in the vertical direction is formed in the rail member, and a fixed glass plate mounting structure for attaching a fixed glass plate to an upper portion of the rail groove. There,
A vertically long frame member fitted to the rail groove is provided at a lower portion of the rail groove, and left and right edges of the fixed glass plate are held at an upper portion of the rail groove, and left and right lower ends of the fixed glass plate are A mounting structure for a fixed glass plate, which is supported by an upper end of a vertically long frame member.   The mounting structure for a fixed glass plate according to claim 1, wherein the vertically long frame member is an elastic resin member.   The fixed glass plate is fitted into an upper part of the rail groove in a state in which the left and right edges are sandwiched by a vertically long frame member having a substantially U shape in a cross-sectional view, and the vertically long plate having the same cross sectional shape as the vertically long frame member The fixed glass plate mounting structure according to claim 1, wherein the frame member is fitted to a lower portion of the rail groove in a state where the frame member is inverted.   The front and rear surfaces of the vertically long frame member have an inner surface of the rail groove regardless of whether they are fitted to an upper part of the rail groove or a lower part of the rail groove. 4. The fixed glass plate mounting structure according to claim 1, further comprising a convex portion or a concave portion that is engaged with the concave portion or the convex portion formed on the surface.   The fixed glass plate is provided in an opening on the front side of the processing chamber in the fume hood, and the rail member is raised or lowered to open or close the opening on the front side of the processing chamber on the front side or the rear side of the rail groove. The mounting structure for a fixed glass plate according to any one of claims 1 to 4, wherein sliding grooves are provided for sliding the left and right edges of the front door.

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