JP2006097248A - Opening device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an opening device which can downsize a door-pull part by making a handle mechanism possess a door-pull structure and which can enhance designability. <P>SOLUTION: This opening device comprises: a frame 2 which is composed of a head 2a, a sill 2b, and left and right jambs 2c and 2d; sashes 3 and 4 which are slidably and openably/closably provided in the frame 2; and the handle mechanism 8 which is provided in door end parts 5d and 7d of the sashes 3 and 4, and which assists an opening-direction force when the sashes 3 and 4 are opened. The handle mechanism 8 is provided with a lever member 10 which is journaled in a laterally rotatable manner and one end of which serves as the door-pull part 9, and a protrusive part 11 which is protruded to a frame side by the rotation of the lever member 10, so as to push out the sashes 3 and 4 in an opening direction. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an opening device, and more particularly to an opening device having an improved handle mechanism so that a shoji can be easily opened by a simple operation.

  The sash, which is an opening device, has a handle mechanism (also called an assist handle) that uses the lever principle to reduce the opening force of the shoji to improve the opening and closing operability of the shoji. A known one is known (for example, see Japanese Patent Application Laid-Open No. 2003-13634). This handle mechanism has a lever member that is pivotally supported on a door tip of the shoji (door tip portion) so as to be pivotable in a vertical direction within a plane substantially parallel to the face of the shoji. When the lever member is gripped and rotated, the other end of the lever member is pressed toward the frame and the shoji is opened by the reaction force.

JP2003-13634

  However, since the handle mechanism of the sash has a structure in which the lever member is grasped by a hand, the projecting size becomes large, the design is not good, and there is a possibility of interfering with an indoor curtain or a Japanese paper sliding door. It was. Also, when opening the external shoji of the sliding door by holding the lever member with your hand, make sure that you do not get your hand caught between the handbag and the lever member. It is necessary to secure a large gap with the summon bowl, and this causes a large amount of leftover of the shoji, which narrows the opening width, or the screen door can only be used on the inner shoji side (on the outer shoji side) The screen door insect repellent packing does not hit the door edge of the shoji screen.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide an opening device that can reduce the size of the handle part by making the handle mechanism a handle structure and can improve the design. To do. It is another object of the present invention to provide an opening device that can reduce the remaining of the shoji and can widen the opening width.

  Among the present inventions, the invention according to claim 1 is a frame comprising an upper frame, a lower frame, and left and right vertical frames, a shoji that is slidably openable in the frame, and a door tip of the shoji. And a handle mechanism that assists the force in the opening direction when opening the shoji, the handle mechanism is pivotally supported so as to be pivotable in the lateral direction, and a lever member having one end as a handle portion, and a rotation of the lever member. It has a protrusion part which protrudes to the frame side by movement and pushes out the shoji in the opening direction.

  According to a second aspect of the present invention, there is provided a frame comprising an upper frame, a lower frame, and left and right vertical frames, a shoji that is slidably opened and closed within the frame, and a door that is provided at the door tip of the shoji to open the shoji. A handle mechanism for assisting the force in the opening direction sometimes, the handle mechanism is a base part, a lever member pivotally supported by the base part so as to be pivotable in the lateral direction, and a lever member having one end as a handle part, and the lever A protrusion that protrudes toward the frame from the inside of the base portion by rotation of the member and pushes the shoji in the opening direction, and a return spring that returns the protrusion to the base portion. When not in use, the protrusion is stored in the base portion. It is characterized by being.

  The invention according to claim 3 is a frame comprising an upper frame, a lower frame, and left and right vertical frames, a shoji that is slidably opened and closed within the frame, and a door that is provided at the door tip of the shoji to open the shoji. A handle mechanism that sometimes assists the force in the opening direction. The handle mechanism is pivotally supported so as to be pivotable in the lateral direction, and a lever member having one end serving as a pulling portion, and the lever member pivots toward the frame side. A stopper member for securing a gap for inserting a finger between the lever member and the summing part of the shoji when the shoji is fully opened in the handle mechanism. Is provided integrally or separately.

  According to the first aspect of the present invention, a frame composed of an upper frame, a lower frame, and left and right vertical frames, a shoji that is slidably opened and closed within the frame, and a shoji that is provided at the door tip of the shoji. A handle mechanism that assists the force in the opening direction when opening the handle, and the handle mechanism is pivotally supported so as to be pivotable in the lateral direction, and has a frame formed by pivoting the lever member. Since it has the protrusion part which protrudes in the side and pushes out a shoji in an opening direction, the magnitude | size of a handle part can be made small by making a handle mechanism into a handle structure, and the design property can be improved. In addition, since the remaining of the shoji can be reduced, the opening width can be increased.

  According to the invention of claim 2, a frame comprising an upper frame, a lower frame, and left and right vertical frames, a shoji that is slidably opened and closed within the frame, and a shoji that is provided at the door tip of the shoji. A handle mechanism that assists the force in the opening direction when opening the handle, the handle mechanism is a base portion, and a lever member that is pivotally supported by the base portion so as to be pivotable in the lateral direction and has one end as a handle portion, The lever member has a protruding portion that protrudes from the inside of the base portion toward the frame by pushing the lever member and pushes the shoji in the opening direction, and a return spring that returns the protruding portion into the base portion. The protruding portion is stored in the base portion when not in use. Therefore, the size of the handle portion can be reduced by making the handle mechanism a handle structure, and the design can be improved. In addition, since the remaining of the shoji can be reduced, the opening width can be increased.

  According to the invention of claim 3, a frame comprising an upper frame, a lower frame, and left and right vertical frames, a shoji that is slidably opened and closed within the frame, and a shoji that is provided at the door tip of the shoji. A handle mechanism that assists the force in the opening direction when opening the handle, and the handle mechanism is pivotally supported so as to be pivotable in the lateral direction, and has a frame formed by pivoting the lever member. A protrusion that protrudes to the side and pushes out the shoji in the opening direction, and in order to secure a clearance for inserting a finger between the lever member and the summing part of the shoji when the outer shoji is fully opened in the handle mechanism. Since the stopper member is provided integrally or separately, the size of the handle portion can be reduced by making the handle mechanism a handle structure, the design can be improved, and the finger can be placed in the gap secured by the stopper member. It can be easily closed by the pulling part. That.

  The best mode for carrying out the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a front view of the interior side of a sash according to an embodiment of the present invention, FIG. 2 is an enlarged cross-sectional view of the sash, FIG. 3 is a perspective view of an assist handle, and FIG. FIG. 5A is a cross-sectional view when not operating, FIG. 5B is an exploded perspective view of the assist handle, and FIG. 6 is a perspective view of the stopper member.

  1 and 2, reference numeral 1 denotes a window or terrace sash exemplified as an opening device. The sash 1 includes a frame (sash frame) 2 attached to an opening of a building frame, and a frame 2. In the illustrated example of the shoji that is slidably openable and closable, a sliding type inner and outer shoji 3, 4 are provided. The frame 2 is configured by assembling, for example, an upper frame 2a, a lower frame 2b, and left and right vertical frames 2c and 2d made of a shape material such as an aluminum alloy into a square shape. The inner shoji 3 is configured by assembling an upper gutter 5a, a lower gutter 5b, and left and right vertical gutters 5c, 5d made of a shape such as an aluminum alloy into a square shape, and mounting a panel such as a glass panel 6 inside. The outer shoji 4 is also configured by assembling an upper collar 7a, a lower collar 7b, and left and right vertical collars 7c, 7d made of a shape material such as an aluminum alloy into a square shape and mounting a panel, for example, a glass panel 6 therein.

  An assist handle (grip mechanism) that assists the force in the opening direction when opening the shoji 3 and 4 is provided at the toe fence 5d and 7d which is the door toe of the inner and outer shoji 3 and 4 8 is provided. As shown in FIGS. 3, 4 to 5, the assist handle 8 includes a lever member 10 that is pivotally supported so as to be pivotable in the lateral direction and has one end serving as a pulling portion 9, and a frame formed by the rotation of the lever member 10. In the illustrated example of the side, it has a protruding portion 11 that protrudes toward the vertical frames 2c and 2d and pushes the shoji 3 and 4 in the opening direction. More specifically, the assist handle 8 includes a base portion (also referred to as a pedestal portion or a case portion) 12 and a lever member that is pivotally supported by the base portion 12 so as to be pivotable in the lateral direction and has one end serving as a handle portion 9. 10, a protrusion 11 that protrudes from the inside of the base portion 12 to the vertical frames 2c and 2d in the illustrated example by the rotation of the lever member 10 and pushes the shoji 3 and 4 in the opening direction. The protrusion 11 is stored in the base part 12 when not in use.

  The base portion 13 and the lever member 10 are made of, for example, plastic and are elongated. The base member 13 is provided with a lever member 10 via a vertical support shaft 14 so as to be horizontally rotatable. One end of the lever member 10 is formed as a pulling portion 9 protruding to the indoor side. In the illustrated example, a plurality of, for example, three output portions 10x on the base side (the other end) of the lever member 10 are branched, and shaft holes 15 through which the support shafts 14 are formed are formed at the respective root portions. A support receiving portion 16 corresponding to the output portion 10x of the lever member 10 is formed on the base portion 12, and a root portion of the output portion 10x of the lever member 10 is formed on the support receiving portion 16 via, for example, a metal support shaft 14. It is rotatably supported. The lever member 10 utilizes the lever principle, and the lever ratio from the support shaft 14 to the handle portion 9 side and from the support shaft 14 to the output portion 10x side is large force (impact output, kick) Can be used.

  Inside the base portion 12, in the illustrated example, a protruding portion (also referred to as a protruding member or a kick-out member) 11 separate from the output portion 10x of the lever member 10 is provided so as to be slidable in the horizontal direction. In this case, the protruding portion 11 is provided corresponding to the central output portion 10x of the output portions branched into three of the lever member 10. The base portion 12 is provided with a hole 17 into which the distal end side of the projecting portion 11 slides so as to be able to project or retract from one side portion of the base portion 12, and the base end portion of the projecting portion 11 extends in the projecting direction. A bowl-shaped restricting portion 18 is formed for preventing the drop-off and restricting the protruding amount to a constant amount.

  The output portion 10x of the lever member 10 is in contact with the outer surface of the restricting portion 18. A return spring 13 is interposed between the inner surface of the restricting portion 18 and the inner surface of the base portion 12 to return the protruding portion 11 into the base portion 12. The pulling portion 9 of the lever member 10 is in a standby position substantially perpendicular to the surface of the shoji as shown in FIG. 4A in the non-operated state, and in this standby position, the outer surface of the proximal end portion of the protruding portion 11 (The outer surface of the restricting portion 18) is in contact with the side surface of the output portion 10x of the lever member 10, and the side surface of the handle portion 9 is in contact with the edge portion of the base portion 12, whereby the handle portion 9 is on standby. Held in position.

  When the hand 9 is pulled from this standby position to the pulling part 9 and pulled in the opening direction of the shoji (in the case of the shoji shown in the illustrated example), the output part 10x of the lever member 10 is moved to the left with the support shaft 14 as a fulcrum. The protrusion 11 protrudes to the left against the spring force of the return spring 13, and the protrusion 11 protrudes from the inner surface of the vertical frame 2c, in the illustrated example, the inner surface of the vertical frame 2c. By the reaction force that abuts against and presses the distal end portion of the rib 19, the outer shoji 4 is pushed and moved in the rightward opening direction, and the shoji 4 can be easily opened.

  When the hand is released from the handle part 9, the handle part 9 is returned to a standby position (non-operating position) substantially perpendicular to the surface of the shoji by the return spring 13. In order to close the external shoji 4, it is only necessary to put the hand on the pulling part 9 and pull it to the left. At this time, the pulling part 9 is locked to the edge of the base part 12 and holds the standby position. The outer screen 4 can be easily closed without the part 9 rotating. The base portion 12 is fixed to the interior surfaces of the door-end fences 5d and 7d of the shoji 3 and 4 with a fixing tool such as a screw. It is preferable that the cap 20 which hides a screw is detachably attached to the base portion 12. Although the assist handle for the external shoji and the assist handle for the internal shoji are the same, the mounting directions are different.

  The assist handle 8 is provided with a stopper member 21 as a single body or as a separate body for ensuring a gap S for inserting a finger between the handle portion 9 and the summing portion 5c of the inner shroud 3 when the external shoji 4 is fully opened. It has been. FIG. 7A is a partial cross-sectional view showing a state in which the stopper member is used, and FIG. 7B is a partial cross-sectional view showing a state in which a gap is secured between the assist handle and the calling inner collar. FIG. 8 is a cross-sectional view in which a gap is eliminated between the assist handle and the calling inner collar when the screen door is used.

  The stopper member 21 of the present embodiment includes a base portion 22 fixed to the interior surface of the door toe 7d of the shoji 4 with a fixing tool, for example, a screw, and the base portion 22 via a vertical support shaft 23. It has the latching | locking part 24 supported so that a movement was possible. The base portion 22 and the locking portion 24 are made of plastic, for example, and the support shaft 23 is made of metal, for example. It is preferable that a cap 25 for hiding the screw is detachably attached to the base portion 22. As shown in FIG. 7 (a), the locking portion 24 has a non-operating position (virtual line) that stands substantially perpendicular to the surface of the shoji so as to protrude toward the indoor side, It is possible to selectively switch to an operating position (solid line) that lies parallel to the face of the shoji so as to face 5c (also called a servant or a callee) by turning about the support shaft 23 as a fulcrum. It has become.

  When the engaging portion 24 of the stopper member 21 is set to the operating position, the stop position of the outer cover 4 is restricted by the engaging portion 24 when the outer cover 4 is fully opened. As shown in FIG. A clearance S can be secured between the pulling part 9 of the handle 8 and the summoning cage 5c of the inner impingement 3 so that the hand 9 can be easily put into the pulling part 9 of the assisting handle 8 when closing the outer cover 4. It can be applied and the external shoji 4 can be easily closed. On the other hand, when the latching portion 24 of the stopper member 21 is set to the non-operating position, the external shoji is operated until the assist handle 8 comes into contact with the summing rod 5c of the inner shoji 3 as shown in FIG. 4 can be opened widely (the amount of leftover can be reduced and the opening width can be widened), and even if the screen door 26 is positioned on the side of the handicap (left side), the insect repellent packing 27 abuts against the door toe 7d of the handbag 4 Therefore, the screen door 26 can be used by being positioned on the side of the shoji. In addition, when the inner shoji 3 is fully opened, the screen door 26 can be used by being positioned on the inner shoji side (right side). In other words, the screen door 26 can be used on either the inner or outer shoji side.

  Although the example in which the stopper member 21 is provided separately from the assist handle 8 in the external obstacle 4 is shown in the above embodiment, the stopper member 21 may be provided integrally with the assist handle 8. 9A and 9B are diagrams showing an assist handle integrally provided with a stopper member, where FIG. 9A is a plan view and FIG. 9B is a front view. In this case, the base portion 12 of the assist handle 8 and the base portion 22 of the stopper member 21 are integrally formed. According to the present embodiment, since the assist handle 8 and the stopper member 21 are provided integrally, the cost can be reduced and the mounting property can be improved.

  FIG. 10 is a cross-sectional view of a sash showing another embodiment of the present invention, FIG. 11 is a cross-sectional view in which a gap is eliminated between the assist handle and the calling inner collar when the screen door is used, and FIG. 12 is an assist handle. (A) is a transverse cross-sectional view at normal time, (b) is the front view thereof, (c) is a cross-sectional view when used as a stopper, and (d) is a front view thereof. In the present embodiment, the same parts as those of the above embodiment are denoted by the same reference numerals and the description thereof is omitted, and different parts are described. In the present embodiment, the lever member 10 of the assist handle 8 can be used as a stopper member.

  Specifically, the handle portion 9 of the lever member 10 has a non-actuated position standing substantially perpendicular to the face of the shoji as shown in FIG. 12 (a), and the face of the shoji as shown in FIG. 12 (b). It is possible to selectively switch to a stopper function position that lies sideways toward the inner impeller 3 side substantially in parallel. Note that the pulling portion 9 returns to the state of being substantially perpendicular to the surface of the shoji as shown in FIG. 11 by the spring force of the return spring 13. The base side of the lever member 10 of the present embodiment is accommodated in the base portion and supported by a support shaft (not shown) so as to be horizontally rotatable. Further, an output portion 10 x that is in contact with the outer surface of the restricting portion 18 of the projecting portion 11 is provided at the base side end portion of the lever member 10. According to the present embodiment, since the lever member 10 can be used as a stopper member, it is not necessary to separately provide a stopper member, and the structure can be simplified and the cost can be reduced.

  When the shoji is opened by putting the hand on the handle 9, the catch 9 will lie down as shown in FIG. 10 to exert a stopper function. When the outer shovel 4 is fully opened, the assist handle 8 and the inner pouch 3 are summoned. It is possible to secure a clearance S in which a hand enters between the flange 5c. On the other hand, only when it is desired to make a large opening when using a screen door or the like, it is only necessary to open the outer screen 4 by touching a portion other than the handle portion 9, for example, the base portion 12 of the handle portion 9. As a result, the outer cover 4 can be opened widely until the assist handle 8 of the outer cover 4 comes into contact with the summoning hook 5c of the inner cover 3 (the leftover can be reduced and the opening width can be increased), and the screen door 26 can be connected to the outer cover 26. Since the insect repellent packing 27 is in contact with the door rod 7d of the external shoji 4 even if it is positioned on the side (left side), the screen door 26 can be used while being positioned on the external door side. Of course, when the pouch is fully opened, the screen door can be positioned on the pouch side (right side).

  FIG. 13 is a front view of the interior side of a sash showing another embodiment of the present invention, FIG. 14A is a partial cross-sectional view when the stopper member is used, and FIG. 13B is a partial view when the stopper member is not used. It is a cross-sectional view. In the present embodiment, the same parts as those of the above embodiment are denoted by the same reference numerals and the description thereof is omitted, and different parts are described. In the present embodiment, the stopper member 28 is provided on the summoning cage 5c of the inner cot 3 which is at a position different from the assist handle 8. This stopper member 28 has a base portion 29 fixed to the end portion of the summoning cage 5c of the inner cot 3 and a locking portion 30 provided on the base portion 29 so as to be slidable indoors and outdoors. Yes. As shown in FIG. 14B, when the locking portion 30 is slid in the indoor direction (non-actuated position), the outer shoji 4 is fully opened until the assist handle 8 comes into contact with the summing rod 5c of the inner shoji 3. (The leftover can be reduced and the opening width can be widened), and when the locking part 30 is slid in the outdoor direction (operating position) as shown in FIG. The locking portion 30 hits the inner edge of the door rod 7d of the external shoji 4, and a clearance S can be secured between the assist handle 8 and the summoning hook 5c of the internal shroud 3.

  FIG. 15 is a partial cross-sectional view showing another embodiment of the present invention. In the present embodiment, the base portion 12 of the assist handle 8 is formed so as to protrude inward (right side) from the position of the handle portion 9. By abutting against the hook 5c, a clearance S is formed so that the hand can be inserted between the pulling portion 9 of the assist handle 8 and the summing hook 5c of the inner limb 3. According to the present embodiment, there is no need to provide a switching type stopper member, and the structure can be simplified and the cost can be reduced.

  FIG. 16 is a partial cross-sectional view showing still another embodiment of the present invention. In this embodiment, the assist handle 8 is formed so as to incline outward (left side) from the inner end (right end) of the base portion 12 when the handle portion 9 of the assist handle 8 is in an inoperative state. When the portion 12 comes into contact with the summoning hook 5c of the inner impingement 3, a clearance S is formed so that a hand can enter between the pulling portion 9 of the assist handle 8 and the summing hook 5c of the inner impingement 3. . According to the present embodiment, there is no need to provide a switching type stopper member, and the structure can be simplified and the cost can be reduced.

  FIGS. 17A and 17B are diagrams showing still another embodiment of the present invention, in which FIG. 17A is a cross-sectional view when not operated, and FIG. 17B is a cross-sectional view when opening a shoji. In this embodiment, a part of the assist handle 8 is disposed inside the door toe 7d. A thin base portion (pedestal) 12 is fixed to the interior surface of the door rod 7d of the shoji screen 4 such as the shoji screen 4 with a screw, and a lever member 10 having a handle portion 9 at one end is supported on the base portion 12 by a spindle. 14 is provided so as to be leveled and movable. The output portion 10x, which is the base end of the lever member 10, is inserted into the interior of the door toe 34 from an opening 34 provided on the indoor surface of the door toe 7d. The door rod 7 d has a hollow structure having a hollow portion 33.

  At the side end of the door rod 7d, a case 32 in which the protruding portion (kicking member) 11 is housed so as to protrude and retract is fitted into the notch 35 and fixed with a screw. The case 32 is provided with a return spring 13 that urges the protruding portion 11 to the storage position, and the output portion 10x of the lever member 10 is in contact with the rear end portion of the protruding portion 11. The pulling part 9 is in a standby position substantially perpendicular to the surface of the shoji when not in operation. When opening the external shoji 4, if the hand 9 is pulled in the opening direction, the pulling part 9 rotates in the opening direction. The output part 10x moves and pushes the protruding part 11 from the side edge part of the door toe 7d, and the external element 4 is easily pushed in the opening direction by the reaction force by which the protruding part 11 presses the inner surface of the vertical frame 2c. Can be opened. According to the present embodiment, in addition to the effects similar to those of the above embodiment, the exposed portion of the assist handle 8 exposed from the interior surface of the door sliding rod 7d of the shoji is reduced, and the portion that kicks out the frame further Since the (protruding part 11) is not visible, an effect that the design property is excellent is obtained.

  As mentioned above, although embodiment thru | or example of this invention has been explained in full detail with drawing, this invention is not limited to the said embodiment thru | or example, Various in the range which does not deviate from the summary of this invention. Design changes can be made. For example, in the invention according to claim 1 or 2, the type of shoji or door is applicable not only to the draw type but also to the single draw type.

It is an indoor side front view which shows the sash which is embodiment of this invention. It is an expanded cross-sectional view of the sash. It is a perspective view of an assist handle. It is a figure which shows an assist handle, (a) is sectional drawing at the time of non-operation, (b) is sectional drawing at the time of shoji opening operation. It is a disassembled perspective view of an assist handle. It is a perspective view of a stopper member. (A) is a partial cross-sectional view which shows the state which uses the stopper member, (b) is a partial cross-sectional view which shows the state which ensured the clearance gap between an assist handle and a calling inner collar. It is the cross-sectional view which eliminated the clearance gap between an assist handle and a calling inner wall at the time of screen door use. It is a figure which shows the assist grip which provided the stopper member integrally, (a) is a top view, (b) is a front view. It is a cross-sectional view of the sash which shows other embodiment of this invention. FIG. 5 is a cross-sectional view in which a gap is eliminated between the assist handle and the calling inner collar when using the screen door. It is a figure which shows an assist handle, (a) is a cross-sectional view at the normal time, (b) is the front view, (c) is a cross-sectional view when used as a stopper, and (d) is the front view. It is a room inner side front view of the sash which shows other embodiment of this invention. (A) is a partial cross-sectional view when the stopper member is used, and (b) is a partial cross-sectional view when the stopper member is not used. It is a partial cross-sectional view which shows other embodiment of this invention. FIG. 6 is a partial cross-sectional view showing still another embodiment of the present invention. It is a figure which shows other embodiment of this invention, (a) is a cross-sectional view at the time of non-operation, (b) is a cross-sectional view at the time of shoji opening operation.

Explanation of symbols

1 Sash (opening device)
2 Frames 3, 4 Shoji 5c Inner shoji (summing bowl) summing section 5d, 7d (door-end bowl) door tip section 8 Assist handle 9 Pull handle section 10 Lever member 11 Protruding section 12 Base section 13 Return spring 21 Stopper member 28 Stopper member

Claims (3)

  A frame composed of an upper frame, a lower frame, and left and right vertical frames, a shoji that is slidably opened and closed within the frame, and a door tip of the shoji that assists the force in the opening direction when opening the shoji. The handle mechanism includes a lever member that is pivotally supported so as to be pivotable in the lateral direction and has one end serving as a handle portion, and protrudes toward the frame by the rotation of the lever member to push the shoji in the opening direction. An opening device having a protrusion.   A frame composed of an upper frame, a lower frame, and left and right vertical frames, a shoji that is slidably opened and closed within the frame, and a door tip of the shoji that assists the force in the opening direction when opening the shoji. A handle mechanism. The handle mechanism includes a base portion, a lever member pivotally supported by the base portion so as to be pivotable in a lateral direction, and one end serving as a handle portion. An opening having a protrusion that protrudes toward the frame and pushes the shoji in the opening direction, and a return spring that returns the protrusion to the base, and the protrusion is stored in the base when not in use. apparatus.   A frame composed of an upper frame, a lower frame, and left and right vertical frames, a shoji that is slidably opened and closed within the frame, and a door tip of the shoji that assists the force in the opening direction when opening the shoji. The handle mechanism includes a lever member that is pivotally supported so as to be pivotable in the lateral direction and has one end serving as a handle portion, and protrudes toward the frame by the rotation of the lever member to push the shoji in the opening direction. And a stopper member for securing a gap for inserting a finger between the lever member and the summing part of the inner shoji when the shoji is fully opened. An opening device characterized by that.

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