Door opener, lever handle operation tool, and door opener

Abstract

The invention provides a door opener, a lever handle operating tool, and a door opener, which can open a door main body through a tool with a small size relative to the door main body regardless of the opening direction of the door main body. The door opener (20) is provided with: a mounting part (21) fixed to the end of a door main body (101) of a side hung door (100); and a pressing part (22) that is provided to the mounting part (21) and presses a door shield (102A) provided to a frame (102) of the door (100) by compressing a coil spring (32), i.e., a biasing member.

Description

Technical Field

[0001] The invention relates to a door opening tool, a lever handle operating tool and a door opening device. Background Art

[0002] Swing doors with lever handles are widely used in buildings such as homes, offices, and public facilities. By turning the lever handle, the latch bolt of the door's latch mechanism disengages from the latch receiver, allowing the door to be opened. Generally, to open the door, the lever handle must be grasped and pressed.

[0003] Patent Document 1 discloses a door opening device that can open a door by pressing a push member without having to grip a lever handle and perform a pressing operation.

[0004] Prior art literature

[0005] Patent Document 1: Japanese Patent Application Laid-Open No. 2020-133362

[0006] The door opening device described in Patent Document 1 is fixed to the door body via bolts and other fixing components. The size of the door opening device is such that it covers substantially the entire width of the door body. Furthermore, since the door opening device utilizes a pressing and pushing component, the door can be opened by pressing the pushing component when the door is opened. However, in a structure where the door is opened by pulling the door toward the front, the door cannot be opened simply by disengaging the latch bolt from the latch receiving member. Pulling the door is required to open the door. Summary of the Invention

[0007] An object of the present disclosure is to provide a technology capable of opening a door body by using an instrument that is sufficiently small relative to the size of the door body, regardless of the opening direction of the door body.

[0008] The door opening device according to the first aspect includes: a mounting portion fixed to an end portion of a door body of a swing-door type door; and a pressing portion provided on the mounting portion for pressing a door stop provided on a frame of the door via a biasing member.

[0009] The door opening device is a device that is smaller than the door body and has a mounting portion fixed to the end of the door body of a swing-door type door. The swing-door type door maintains the door body in a closed state by retaining devices such as the latch bolt and latch receiving member of the latch mechanism. When the retaining device is released, the pressing portion of the door opening device presses the door stop via a force-applying component. Through this reaction, the door body leaves the door stop and the door body opens. Whether the structure is to open by pressing the door body or to open by pulling the door body, the door body can be opened by the door opening device. When closing the door body, the pressing portion overcomes the force of the force-applying component and returns to the original position, and the door body can be closed to the position where the retaining device works.

[0010] The second method is based on the door opening device involved in the first method, wherein the pressing part is arranged between the end part of the door body and the door stop, the force-applying component is arranged on the side opposite to the door stop side in the thickness direction of the door body, the pressing part and the pressure-receiving part are connected by a transmission part spanning the end edge of the door body, the pressure-receiving part is able to move relative to the mounting part due to the force of the force-applying component, and the pressing part also moves as the pressure-receiving part moves.

[0011] In this door opening device, when the door retaining device is released, the pressure-receiving portion is subjected to the force of a force-applying member provided on the opposite side of the door stop in the thickness direction of the door body and moves relative to the mounting portion. The pressure-receiving portion is connected to a pressing portion provided between the end of the door body and the door stop via a transmission portion, so the pressing portion also moves as the pressure-receiving portion moves. That is, the force of the force-applying member is transmitted to the pressing portion via the transmission portion across the end of the door body. As a result, the pressing portion provided between the door body and the door stop presses the door stop. Through this reaction, the door body leaves the door stop and the door body opens. The force-applying member is provided on the opposite side of the door stop in the thickness direction of the door body, so it is easy to ensure the installation space of the force-applying member.

[0012] The third method is based on the door opening device of the second method, and the mounting portion has a clamping member, and the clamping member has: a base end portion, which is arranged on the side opposite to the door stop side in the thickness direction of the door body; a jaw portion, which is arranged between the door body and the door stop in the clamping member; and a main shaft, which is threadedly connected to the base end portion and can move forward and backward along the thickness direction of the door body, and the base end portion and the jaw portion are connected by a connecting portion spanning the end edge of the door body, and can clamp the end of the door body between the front end of the main shaft and the jaw portion.

[0013] The door opening device can be mounted on the door body by clamping the end of the door body between the front end of the main shaft of the clamp of the mounting portion and the jaw portion.

[0014] A fourth aspect is the door opening device according to the third aspect, wherein a stopper is provided on the jaw side of the clamp, and the stopper determines an upper limit of movement of the pressing portion by the urging member.

[0015] In this door opening device, the upper limit of the movement of the pressing portion utilizing the force member is determined by the stopper arranged on the jaw side of the clamp. Thus, the useless flying out of the pressing member is restricted, and the return of the pressing portion when the door body is closed also becomes smooth.

[0016] A fifth aspect is the door opener according to the third aspect, wherein the transmission portion is guided and moved by the clamp.

[0017] In this door opening device, the transmission part connecting the pressure receiving part and the pressing part is guided by the clamp and moves, so the pressure receiving part, the transmission part and the pressing part move smoothly.

[0018] The lever handle operating device involved in the sixth mode is installed on a swing door type door equipped with a lever handle, wherein the lever handle operating device comprises: a fixed component, which has a setting portion fixed to the door body near the lever handle; a movable component, which has an abutment portion that can abut against the grip portion of the lever handle and can move relative to the fixed component; and an operating portion, which is provided on the movable component and can receive input of a force for moving the movable component toward the setting portion side, the fixed component having a column portion extending from the setting portion side toward the movable component side, the movable component having a cylindrical portion with an opening portion on the fixed component side, the cylindrical portion being able to slide relative to the column portion when the column portion is inserted into the inner side of the cylindrical portion from the opening portion, and the abutment portion having a pressing surface that presses down the grip portion while sliding relative to the grip portion when the movable component is moved toward the setting portion side.

[0019] This lever handle operating device can be installed on the door body without modifying the door body. Furthermore, by applying force to the operating portion, the movable member moves toward the mounting portion of the fixed member. The pressing surface of the movable member's abutment portion slides relative to the grip portion of the lever handle while depressing the grip portion. Therefore, the latch bolt of the door's latch mechanism can be disengaged from the latch receiver without having to grasp the lever handle and depress it, thereby enabling the door body to rotate.

[0020] Furthermore, the column of the fixed member is inserted into the cylindrical portion of the movable member. When the movable member moves, the cylindrical portion slides relative to the column. In other words, the cylindrical portion is guided by the column. This improves the strength of the lever handle operating device.

[0021] A seventh aspect is the lever handle operating tool according to the sixth aspect, wherein the operating portion is capable of receiving input of a force in a moving direction of the movable member toward the setting portion and input of a force from an obliquely upward direction intersecting the moving direction.

[0022] In this lever handle operating device, the operating portion can receive input of force in the direction of movement of the movable part toward the setting portion, as well as input of force from an obliquely upward direction intersecting with the movement direction. Therefore, even if the operating portion is in a lower position when viewed from the operator of the lever handle, the movable part can be smoothly moved toward the setting portion, and the grip portion of the lever handle can be pressed down.

[0023] The eighth aspect is the operating tool involved in the lever handle of the sixth aspect, wherein the movable member has a stopper that abuts against the grip portion when the column portion is inserted into the cylindrical portion when the movable member is moved in a direction opposite to the setting portion.

[0024] In this lever-handle operating device, when the movable member is moved in a direction opposite to the setting portion, the stopper of the movable member abuts against the grip portion while the cylindrical portion of the movable member is guided by the column portion of the fixed portion. Therefore, it is possible to prevent the movable member from being separated from the fixed portion during use of the lever-handle operating device.

[0025] A door opening device according to a ninth aspect includes the door opening device according to any one of the first to fifth aspects and the lever handle operating device according to any one of the sixth to eighth aspects.

[0026] In this door opening device, if the latch bolt of door is disengaged from the latch receiving member by utilizing the lever handle operating tool to operate the lever handle, the door opening tool is utilized to open the door body. Therefore, only by operating the lever handle operating tool, the door body can be opened.

[0027] The effects of the present invention are as follows.

[0028] According to the present invention, regardless of the opening direction of the door main body, the door main body can be opened by a tool that is sufficiently small relative to the size of the door main body. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 (A) is a front view of a door equipped with a door opening device according to the present embodiment. (B) is a cross-sectional view of the door when the door is cut along line AA extending vertically along the door in (A). (C) is a cross-sectional view of the door when the door is cut along line BB extending horizontally along the door in (A).

[0030] Figure 2 It is a three-dimensional diagram showing a door opening device.

[0031] Figure 3 It is a three-dimensional diagram showing a door opening device.

[0032] Figure 4 It is an exploded perspective view showing a door opening device.

[0033] Figure 5 It means door opening device Figure 2 DD section view in.

[0034] Figure 6 Indicates the closed state of the door body with the door opening device installed. Figure 1 Enlarged cross-sectional view viewed in the CC direction.

[0035] Figure 7 It means from Figure 6 A sectional view of the state in which the door body is opened by the action of the door opening device.

[0036] Figure 8 It is a perspective view showing a lever handle operating device.

[0037] Figure 9 It is an exploded perspective view showing a lever handle operating device.

[0038] Figure 10 This is a perspective view showing the movable member extracted from the lever handle operating tool.

[0039] Figure 11 It is a cross-sectional view showing a state where the lever handle operating device is mounted on a door.

[0040] Figure 12 This is a cross-sectional view showing the lever handle operating tool in use.

[0041] In the figure: 10—door opening device, 20—door opening device, 21—installation part, 22—pressing part, 23—clamping member, 24—base end part, 25—jaw part, 26—connecting part, 27—main shaft, 28—abutting part, 29—connecting part, 29A—stopper, 32—compression coil spring (force-applying part), 33—pressure-receiving part, 34—transmission part, 50—lever handle operating device, 60—fixing part, 61—setting part, 63—column part, 70—movable part, 71—abutting part, 72—pressing bottom, 75—stopper, 76—operating part, 78—cylindrical part, 78A—opening part, 100—door, 101—door body, 102—frame, 102A—door stop, 104—lever handle. DETAILED DESCRIPTION

[0042] Below, the mode for implementing the present invention is described based on the accompanying drawings. The constituent elements represented by the same reference numerals in each of the accompanying drawings refer to the same or similar constituent elements. In addition, in the embodiments described below, repeated descriptions and reference numerals are sometimes omitted. In addition, the drawings used in the following description are all schematic, and the relationship between the dimensions of the elements shown in the drawings, the ratio of the elements, etc. may not be consistent with the actual situation. In addition, the relationship between the dimensions of the elements, the ratio of the elements, etc. may not be consistent between multiple drawings.

[0043] [Door opening device]

[0044] Figure 1 FIG. 1 is a diagram showing a door 100 provided with the door opening device 10 according to the present embodiment. Figure 1 In the embodiment, the side of the door 100 where the door body 101 opens in a manner close to the operator of the lever handle operating device 50 is set as the "front", and the side of the door body 101 opened in a manner away from the operator is set as the "back", and the up, down, left and right directions are set as the up, down, left and right directions based on the situation of observing the door 100 from the front. Figure 1 (A) is a front view of the door 100 as seen from the front. Figure 1 (B) is to follow the Figure 1 (A) is a cross-sectional view of the door 100 when the door 100 is cut along line AA extending in the vertical direction of the door 100 . Figure 1 (C) is to follow the Figure 1 (A) is a cross-sectional view of the door 100 when the door 100 is cut along line BB extending in the horizontal direction of the door 100.

[0045] Door 100 is a swing door made of wood, aluminum, or the like, and is installed in an opening in wall 14 of building 12. Door 100 includes a door body 101 and a door frame 102 to which door body 101 is fixed. Depending on the building, there may be less space between ceiling 16 and frame 102. Furthermore, depending on the design of frame 102, the width of frame 102 may be relatively narrow.

[0046] The door body 101 has a rectangular plate shape with the vertical direction as the longitudinal direction, and is rotatably mounted on the frame 102 via a hinge 103. The door body 101 can be rotated from Figure 1 The frame 102 is made of wood or aluminum, and has a rectangular space formed inside with the vertical direction being the longitudinal direction. The frame 102 is fixed to the wall 14 of the building 12 by screws, nails, etc. Figure 6As shown, door stops 102A are provided on the upper frame and left and right frames of frame 102, for example, to abut or approach the ends of door body 101 when door body 101 is closed. By closing door 100, the space within building 12, and the interior and exterior of building 12, can be separated. When door 100 is closed, a slight gap of several millimeters is formed between door body 101 and frame 102.

[0047] Lever handles 104 that can be rotated downward relative to the door body 101 are provided on the right side of the front and back of the door body 101. The lever handle 104 is made of metal such as aluminum alloy and is generally the part that the operator's hand touches when opening and closing the door 100. In addition, a latch mechanism (not shown) that is linked to the lever handle 104 is provided on the door body 101. When the lever handle 104 is in the initial position extending horizontally, the latch bolt of the latch mechanism protrudes from the right side of the door body 101 and is inserted into the latch receiving member (not shown) provided on the right side of the frame 102, thereby preventing the door body 101 from rotating. The latch mechanism is activated by rotating the lever handle 104 downward. Through the action of the latch mechanism, the latch bolt is pulled into the right side of the door body 101 and disengaged from the latch receiving member, so that the door body 101 can be opened.

[0048] The door opening device 10 is a device for opening the door 100 without directly operating the lever handle 104. The door opening device 10 includes a door opening device 20 and a lever handle operating device 50. The door opening device 20 is, for example, an device used in combination with the lever handle operating device 50. According to the door opening device 10 in which the lever handle operating device 50 and the door opening device 20 are combined, the door 100 can be opened by operating the lever handle operating device only once without operating the lever handle 104. In addition, the lever handle operating device 50 can be set on the near front side and the inner side of the door body 101. The lever handle operating device 50 can also be set on at least one of the near front side and the inner side of the door body 101. In addition, the following description will be made by taking the lever handle operating device 50 arranged on the near front side of the door body 101 as an example.

[0049] [Door opener]

[0050] exist Figures 2 to 7 In the embodiment, the door opening device 20 includes a mounting portion 21 and a pressing portion 22 .

[0051] (Installation Department)

[0052] The mounting portion 21 is fixed to an end portion, for example, an upper end portion, of a door body 101 of a swing door. The mounting portion 21 includes, for example, a clamp 23 .

[0053] The clamp 23 includes a base end 24, a jaw 25, and a spindle 27. The base end 24 is located on the side of the door body 101 opposite the door stop 102A in the thickness direction. A pair of jaws 25 are provided in the clamp 23 between the door body 101 and the door stop 102A. The spindle 27 is threadedly engaged with the base end 24 and can move forward and backward in the thickness direction of the door body 101.

[0054] The base end portion 24 and the pair of jaws 25 are connected, for example, integrally, by a pair of connecting portions 26 that span the edge of the door body 101. The base end portion 24, jaws 25, and connecting portions 26 can also be formed by, for example, bending a metal plate. The thickness of the connecting portions 26 is smaller than the gap between the door body 101 and the frame 102. Furthermore, the thickness of the jaws 25 is smaller than the gap between the door body 101 and the door stop 102A when the door 100 is closed.

[0055] An internal thread portion 24A is formed at the base end portion 24, for example, by flanging. The main shaft 27 has, for example, an external thread portion 27A, which is threadedly engaged with the internal thread portion 24A of the base end portion 24. An abutment portion 28, for example, made of rubber, is mounted at the front end of the main shaft 27. The end of the door body 101 can be clamped between the abutment portion 28 and the jaw portion 25. The abutment portion 28 is provided to increase friction with the door body 101 and stabilize the installation state of the clamp 23.

[0056] The lower edges of the pair of jaws 25 are integrally connected by a connecting portion 29 that projects and terminates inward (on the side opposite the base end portion 24). A stopper 29A may be provided on the jaw 25 side of the clamp 23, for example, on the connecting portion 29, to determine the upper limit of movement of the pressing portion 22 by the compression coil spring 32 described later. This stopper 29A corresponds to the inner end of the notch formed in the connecting portion 29 and is formed at a position away from the jaw 25.

[0057] A knob 30 is attached to the rear end of the spindle 27. When the knob 30 is rotated, the spindle 27 rotates and, due to the action of the screw thread, advances and retreats in the thickness direction of the door body 101. This can narrow or widen the gap between the jaw 25 and the abutment portion 28 at the front end of the spindle 27.

[0058] The base end portion 24 and a portion of the connecting portion 26 in the clamp 23 are arranged on the inner side of a cover 31 made of, for example, resin. The cover 31 is formed into a bottomed shape with an opening portion 31A on the door body 101 side. A pair of protrusions 31B that protrude toward the inner side of the cover 31 are provided on, for example, the upper wall portion 31U of the cover 31. A recess 31C is formed at a position corresponding to the protrusion 31B in the upper surface of the upper wall portion 31U. A notch 26B is formed at each end of the pair of connecting portions 26, for example, on the side of the base end portion 24. By engaging the notch 26B with the protrusion 31B of the cover 31, it is possible to prevent the base end portion 24, the jaw portion 25, and the connecting portion 26 from detaching from the cover 31. A through hole 31D for inserting the main shaft 27 is formed in the front wall portion 31R (the wall portion near the front side) of the cover 31.

[0059] (Pressing part)

[0060] The pressing portion 22 is provided on the mounting portion 21 and is a portion that presses the door stop 102A provided on the frame 102 of the door 100 via a compression coil spring 32 as an example of a biasing member. The pressing portion 22 is provided between the door body 101 and the door stop 102A.

[0061] The compression coil spring 32 is provided on the side opposite to the door stop 102A in the thickness direction of the door body 101. The compression coil spring 32 is provided coaxially with the main shaft 27, with one end contacting the base end 24 and the other end contacting the pressure receiving portion 33.

[0062] The pressure-receiving portion 33 is a portion that is able to move relative to the mounting portion 21 by the force of the compression coil spring 32. The pressing portion 22 and the pressure-receiving portion 33 are connected, for example, integrated, by a transmission portion 34 that spans the end edge of the door body 101. The pressing portion 22 also moves as the pressure-receiving portion 33 moves. In addition, the pressing portion 22, the pressure-receiving portion 33 and the transmission portion 34 can also be formed by bending a metal plate, for example. The thickness of the transmission portion 34 is smaller than the gap between the door body 101 and the frame 102, for example, it is the same as the thickness of the connecting portion 26 in the clamp 23. The width of the transmission portion 34 is set to be slightly smaller than the spacing between the pair of connecting portions 26. Thus, the transmission portion 34 is guided by the clamp 23 and moves. Specifically, the inner edges of the pair of connecting portions 26 that are opposite to each other become the guide portions 26A, and the transmission portion 34 is guided by the guide portions 26A on both sides thereof. In addition, such a guiding structure may not be provided.

[0063] The pressure receiving portion 33 has a through hole 33A through which the spindle 27 is inserted. The front end of the spindle 27 is inserted through the through hole 33A, and the contact portion 28 is attached to the front end. Thus, the contact portion 28 is located between the pressure receiving portion 33 and the pressing portion 22 (jaw 25).

[0064] In the direction of movement of the pressing portion 22, a portion of the pressing portion 22 faces a stopper 29A provided on the connecting portion 29. A flange portion 39 is provided at the lower edge of the pressing portion 22, protruding and terminating inward (on the side opposite the pressure receiving portion 33). The flange portion 39 is positioned below the connecting portion 29 in the clamp 23. The flange portion 39 hooks onto the connecting portion 29, preventing the pressing portion 22 from moving upward relative to the flange portion 39 and facing the stopper 29A.

[0065] The movement stroke of the pressing portion 22 when the door 100 is opened or closed can be set by the depth of the cutout of the connecting portion 29 forming the stopper 29A (the distance from the flange portion 25 to the stopper 29A).

[0066] (Function of door opener)

[0067] exist Figure 1 、 Figure 6 In the embodiment, the door opening device 20 involved in this embodiment is fixed to the door body 101 of the swing-door type door 100 by the mounting portion 21, and the end of the door body 101 is clamped between the abutment portion 28 at the front end of the main shaft 27 of the clamping member 23 of the mounting portion 21 and the jaw portion 25, so that the door opening device 20 can be installed on the door body 101. The door opening device 20 is a device smaller than the door body 101. The swing-door type door 100 maintains the door body 101 in a closed state by a holding device (not shown) such as a latch bolt and a latch receiving member of the latch mechanism. When the holding device is released by operating the lever handle 104 or the lever handle operating device 50 described later, the pressing portion 22 of the door opening device 20 presses the door stop 102A by the compression coil spring 32.

[0068] Specifically, the pressure-receiving portion 33 moves relative to the mounting portion 21 due to the force of the compression coil spring 32, which is provided on the side opposite to the door stop 102A in the thickness direction of the door body 101. When the compression coil spring 32 is provided coaxially with the main shaft 27, this force can be efficiently applied to the pressure-receiving portion 33. The pressure-receiving portion 33 is connected to the pressing portion 22, which is provided between the door body 101 and the door stop 102A, via the transmission portion 34. Therefore, as the pressure-receiving portion 33 moves, the pressing portion 22 also moves. In other words, the force of the compression coil spring 32 is transmitted to the pressing portion 22 via the transmission portion 34, passing over the end of the door body 101. As a result, the pressing portion 22, which is provided between the door body 101 and the door stop 102A, presses the door stop 102A. Due to this reaction, the door body 101 moves away from the door stop 102A, and the door body 101 opens. Since the compression coil spring 32 is provided on the side opposite to the door stop 102A side in the thickness direction of the door body 101 , it is easy to secure a space for providing the compression coil spring 32 .

[0069] Regardless of whether the door 100 is opened by pressing the door body 101 or by pulling the door body 101, the door body 101 can be opened by the door opening device 20. When closing the door body 101, the pressing portion 22 overcomes the force of the compression coil spring 32 and returns to its original position, thereby closing the door body 101 to the position where the holding device works.

[0070] The upper limit of the movement of the pressing portion 22 caused by the compression coil spring 32 is determined by the stopper 29A provided on the jaw 25 side of the clamp 23. Thus, the unnecessary flying out of the pressing portion 22 is restricted, and the return of the pressing portion 22 when closing the door body 101 also becomes smooth.

[0071] Since the transmission portion 34 connecting the pressure receiving portion 33 and the pressing portion 22 moves while being guided by the clamp 23 , the pressure receiving portion 33 , the transmission portion 34 , and the pressing portion 22 can move smoothly.

[0072] Thus, the door opening device 20 according to the present embodiment is configured such that the pressing portion 22 presses the door stop 102A of the frame 102 of the door 100. Figure 1 In the embodiment, the door body 101 can be opened even when there is little space between the ceiling 16 of the building 12 and the frame 102 and the wall 14 cannot be pressed, or when the width of the frame 102 is narrow and the frame 102 itself cannot be pressed. In addition, regardless of the opening direction of the door body 101, the door body 101 can be opened by an instrument that is sufficiently small relative to the size of the door body 101. In addition, in this embodiment, it is also possible to configure the door body 101 so that only the door opening instrument 20 is provided instead of the lever handle operating instrument 50. When the lever handle 104 is operated, the door body 101 is opened by the door opening instrument.

[0073] [Lever handle operating device]

[0074] exist Figure 1 In FIG, the lever handle operating device 50 is a device that is mounted on a swing door having a lever handle 104 and can open the door 100 without operating the lever handle 104. Figures 8 to 12 , the lever handle operating tool 50 according to the present embodiment includes a fixed member 60, a movable member 70, and an operating portion 76. In the description of the lever handle operating tool 50, "near front side" refers to the side where the operating portion 76 is located.

[0075] The fixing component 60 has a setting portion 61 fixed to the door body 101 of the door 100 near the lever handle 104. The setting portion 61 is the back surface of the inner side and is formed to be roughly flat. The fixing component 60 can fix the setting portion 61 to the surface of the door body 101 by sticking, for example, a double-sided tape on the setting portion 61. The fixing component 60 has a column portion 63 extending from the side of the setting portion 61 to the side of the movable component 70. In this embodiment, the fixing component 60 includes a first fixing component 91 having the setting portion 61 and a second fixing component 92 having the column portion 63 and mounted on the first fixing component 91.

[0076] The first fixing member 91 includes a mounting portion 61, an upper plate portion 88, and left and right side plates 87. The first fixing member 91 is open at its lower portion (bottom opening 81) and near-front side (front opening 86). In the first fixing member 91, the lower portions of the near-front end edges of the left and right side plates 87 form cutout steps 85 that are lowered inward relative to the upper portions. The cutout steps 85 are located between the contact portion 71 of the movable member 70 and the free end of the grip of the lever handle 104. The depth of the side plates 87 is shorter at the cutout steps 85 than at the upper portions.

[0077] The column portion 63 serves as a guide for the movable member 70 when it moves toward the setting portion 61. The column portion 63 is formed, for example, in a substantially rectangular cylindrical shape with an opening on the side of the setting portion 61. The column portion 63 is formed, for example, at the upper portion of the fixed member 60, protruding from the back plate portion 84 to the outside of the front opening 66. Gaps are formed between the column portion 63 and the side plate portion 67, and between the column portion 63 and the upper plate portion 68, for inserting the cylindrical portion 78, which will be described later.

[0078] The near-front edge of the bottom plate portion 69 and a portion of the near-front edge of the left and right side plate portions 67 form a cutout step portion 65 that descends inward from the near-front edge of the column portion 63. The cutout step portion 65 is a portion where the free end of the gripping portion of the lever handle 104 is inserted between the contact portion 71 of the movable member 70. The cutout step portion 65 is located below the column portion 63, and with respect to the depth dimension of the side plate portion 67, the cutout step portion 65 is shorter than the column portion 63. Figure 9 As shown, a groove 54 in which one end of the compression coil spring 53 is arranged is provided on the inner surface side of the installation portion 61 .

[0079] The position of the second fixing member 92 relative to the first fixing member 91 is adjusted according to the position of the grip portion of the lever handle 104 relative to the door body 101 (door 100). Figure 9), three mounting grooves 87A, 87B, and 87C are formed in the first fixing member 91. The mounting grooves 87A, 87B, and 87C extend vertically, open downward, and are formed parallel to the depth direction of the first fixing member 91 at predetermined intervals. The spacing between the mounting grooves 87A, 87B, and 87C may be constant or variable. Engaging portions 87D and 87E are provided above and below the mounting grooves 87A, 87B, and 87C at predetermined heights. The engaging portions 87D and 87E, for example, communicate with the mounting grooves 87A, 87B, and 87C and are formed as recessed portions that are recessed toward the mounting portion 61.

[0080] The second fixing member 92 comprises a back plate 84, an upper plate 68, left and right side plates 67, and a bottom plate 69. This box-shaped member contains the interior space 64, into which the movable member 70 is inserted through the front opening 66. The movable member 70's abutment portion 71 can be moved toward the mounting portion 61. Protrusions 67D and 67E are provided, respectively, on the upper and lower ends of the side plates 67 on either side of the second fixing member 92, for example, on the inner side. After inserting the second fixing member 92 into the first fixing member 91 by fitting these protrusions 67D and 67E into one of the mounting grooves 87A, 87B, and 87C, the second fixing member 92 is then offset toward the mounting portion 61, allowing the protrusions 67D and 67E to engage with the engaging portions 87D and 87E, respectively. This prevents the second fixing member 92 from falling out of the first fixing member 91. Furthermore, this arrangement allows the second fixing member 92's mounting position relative to the first fixing member 91 to be adjusted in the depth direction. The second fixing member 92 is slidably mounted relative to the first fixing member 91 in a direction intersecting the moving direction of the movable member 70, for example, in the vertical direction.

[0081] The movable member 70 includes a cylindrical portion 78 having an opening 78A on the fixed member 60 side. The cylindrical portion 78 is provided on the upper portion of the movable member 70, corresponding to the column 63. The cylindrical portion 78 is slidable relative to the column 63 when the column 63 is inserted into the cylindrical portion 78 through the opening 78A. A groove 78B, for example, extends along the depth direction of the cylindrical portion 78 on the inner side surface of the cylindrical portion 78. The end of the groove 78B in the depth direction serves as a portion for hooking a claw of the mounting portion 82 of the operating portion 76, which will be described later.

[0082] The movable member 70 includes an abutment portion 71 that can abut against the grip portion of the lever handle 104 and is movable relative to the fixed member 60. The abutment portion 71 includes a pressing surface 72 that presses down the grip portion while sliding relative to the grip portion when the movable member 70 is moved toward the setting portion 61. The pressing surface 72 may be inclined downward as it moves from the opening side of the cylindrical portion 78 toward the operating portion 76.

[0083] The movable member 70 is inserted into the front opening 66 of the second fixed member 92 from the cylindrical portion 78 and the front plate portion 73. In other words, the cylindrical portion 78 and the front plate portion 73 are sized to allow them to move within the internal space 64 of the second fixed member 92 toward the back plate portion 84 and the opposite side (toward the front opening 66) as the movable member 70 moves. The front plate portion 73 extends downward from the inner end of the cylindrical portion 78. While the movable member 70 of this embodiment is formed so that the lower end of the front plate portion 73 does not contact the upper surface of the bottom plate portion 69 of the second fixed member 92, it may alternatively be formed so that the lower end of the front plate portion 73 slides on the upper surface of the bottom plate portion 69.

[0084] The movable member 70 also has a stopper 75. An insertion space 74 is formed between the abutment portion 71 and the stopper 75, through which the grip of the lever handle 104 can be inserted. The insertion space 74 is open downward. The stopper 75 is a portion that abuts the grip of the lever handle 104 when the movable member 70 is moved in a direction opposite to the mounting portion 61, with the column 63 inserted into the cylindrical portion 78. The stopper 75 is located on the surface of the front plate 73 facing the abutment portion 71.

[0085] The contact portion 71 is provided below the cylindrical portion 78 and on the near side of the stopper portion 75. The pressing lower surface 72 is inclined downward from the rear side toward the near side. Therefore, when the contact portion 71 moves toward the mounting portion 61, the grip portion of the lever handle 104 can be pressed while sliding against the grip portion. In addition, in this embodiment, the contact portion 71 and the pressing lower surface 72 are formed to be bilaterally symmetrical, allowing the lever handle operating device 50 to be used with the lever handle 104 facing either left or right.

[0086] A compression coil spring 53 is disposed between the fixed member 60 and the stopper 75 of the movable member 70, urging the movable member 70 in a direction (near the front) opposite to the mounting portion 61 of the fixed member 60. With the cylindrical portion 78 of the movable member 70 guided by the column 63, the stopper 75 abuts against the grip of the lever handle 104. Therefore, the movable member 70 does not separate from the fixed member 60 even when urged by the compression coil spring 53.

[0087] The operating portion 76 is provided on the movable member 70 and is capable of receiving input of a force for moving the movable member 70 toward the setting portion 61. The operating portion 76 is configured, for example, to receive input of a force in the direction of movement of the movable member 70 toward the setting portion 61, as well as input of a force from an obliquely upward direction intersecting with the direction of movement. The operating portion 76 has, for example, a convex curved surface on the side opposite to the setting portion 61 side in the direction of movement of the movable member 70. In addition, the operating portion 76 extends upward, for example, from the upper front side of the first fixed member 91, that is, the upper plate portion 88. Furthermore, the operating portion 76 may extend to the left and right beyond the movable member 70, or may extend downward from the contact portion 71. In the example shown in the figure, the operating portion 76 extends upward, downward, left and right relative to the movable member 70, with the extension upward being the greatest. This is to facilitate the action of placing a hand on the operating portion 76 from above and pulling it.

[0088] like Figure 11 、 Figure 12 As shown, the movable member 70 and the operating portion 76 are fastened together, for example, by screws 80. As an example, mounting portions 82 and 83 are provided on the upper and lower sides of the inner side of the operating portion 76 to be inserted into the inner side of the movable member 70. The movable member 70 engages with the claws of the mounting portion 82, and the abutting portion 71 is fastened to the mounting portion 83.

[0089] (Function of lever handle operating device)

[0090] exist Figure 11 、 Figure 12 The lever handle operating device 50 can be installed on the door body 101 without modifying the door body 101. The operating portion 76 is formed as a curved surface that convexly projects toward the side opposite the setting portion 61 in the direction of movement of the movable member 70. This surface is capable of receiving force input from the movable member 70 in the direction of movement of the setting portion 61, as well as force input from an obliquely upward direction intersecting the direction of movement. Therefore, from the perspective of operating the lever handle 104, the operating portion 76 is positioned relatively low, allowing the movable member 70 to move smoothly toward the setting portion 61 even when the operating portion 76 is pressed from an obliquely upward direction.

[0091] By inputting force into the operating portion 76, the movable part 70 is moved toward the setting portion 61 of the fixed part 60, and the pressing surface 72 of the contact portion 71 of the movable part 70 slides relative to the gripping portion of the lever handle 104 while pressing the gripping portion. Therefore, the latch bolt of the door 100 can be disengaged from the latch receiving member without having to hold the lever handle 104 and perform a downward operation. As a result, the door body 101 can be made to be in a state where it can rotate. Here, in a case where the door opening device 10 includes a door opening device 20 and a lever handle operating device 50, when the latch bolt is disengaged from the latch receiving member, the door body 101 is then opened by the action of the door opening device 20. Therefore, the door body 101 can be opened only by operating the lever handle operating device 50.

[0092] Since the operating portion 76 extends upward from the upper portion of the front side of the fixed member 60, that is, the upper plate portion 68 of the fixed member 60, even in the absence of the door opening device 20, it is easy to open the door 100 by placing a hand on the operating portion 76 and pulling it toward the front. Furthermore, since the insertion space 74 of the movable member 70 is also open downward, the contact portion 71 is not hindered from pressing the grip of the lever handle 104, compared to a case where the insertion space 74 is closed at the bottom. This allows the lever handle 104 to be properly rotated to a position where the latch bolt is disengaged from the latch receiver.

[0093] Furthermore, the column portion 63 of the fixed member 60 is inserted into the cylindrical portion 78 of the movable member 70. When the movable member moves, the cylindrical portion 78 slides relative to the column portion 63. In other words, the cylindrical portion 78 is guided by the column portion 63. Therefore, the strength of the lever handle operating device 50 can be improved.

[0094] In this lever-handle operating device 50, when the movable member 70 is moved in a direction opposite to the mounting portion 61, the stopper 75 of the movable member 70 abuts against the grip portion while the cylindrical portion 78 of the movable member 70 is guided by the column portion 63 of the fixed portion. Therefore, it is possible to prevent the movable member 70 from being separated from the fixed portion 60 during use of the lever-handle operating device 50.

[0095] [Other embodiments]

[0096] An example of an embodiment of the present invention has been described above, but the embodiment of the present invention is not limited to the above, and it is apparent that various modifications other than the above can be made without departing from the spirit and scope of the present invention.

[0097] The door opener 20 is mounted on the upper end portion of the door body 101 , but if there is no door stop corresponding to the upper end portion, it may be mounted on an end portion where a door stop exists, such as a side end portion.

[0098] In the door opener 20, the pressing portion 22 is disposed between the door body 101 and the door stop 102A, and the compression coil spring 53 (force-applying member) is disposed on the side opposite to the door stop 102A in the thickness direction of the door body 101. However, as long as space is available for the installation, the pressing portion 22 and the force-applying member may be disposed between the door body 101 and the door stop 102A. Alternatively, the pressing portion 22 may be directly pressed by the force-applying member.

[0099] The mounting portion 21 of the door opener 20 has the clamp 23 , but the mounting portion 21 may be mounted to the door body 101 by means other than the clamp 23 , such as bonding or fastening.

[0100] In the lever handle operating device 50, the column portion 63 is provided on the second fixed component 92 (fixed component 60) and the cylindrical portion 78 is provided on the movable component 70, but it can also be a structure in which the column portion 63 is provided on the movable component 70 and the cylindrical portion 78 is provided on the second fixed component 92 (fixed component 60).

Claims

1. A door opening device, characterized in that: have: a mounting portion fixed to an end portion of a door body of a swing door type; and The pressing portion is provided on the mounting portion and presses the door stopper provided on the door frame through a force applying member.

2. The door opening device according to claim 1, characterized in that The pressing portion is provided between the end portion of the door body and the door stop, The force applying member is provided on the side opposite to the door stop in the thickness direction of the door body. The pressing portion and the pressure receiving portion are connected via a transmission portion spanning the end edge of the door body. The pressure receiving portion is movable relative to the mounting portion by the biasing force of the biasing member. The pressing portion also moves as the pressure receiving portion moves.

3. The door opening device according to claim 2, characterized in that: The mounting portion has a clamping member, The clamping member comprises: a base end portion, which is provided on a side opposite to the door stop in the thickness direction of the door body; a jaw portion, which is provided between the door body and the door stop in the clamping member; and a main shaft, which is threadedly coupled to the base end portion and can move forward and backward in the thickness direction of the door body. The base end portion and the jaw portion are connected via a connection portion that spans the end edge of the door body, and the end portion of the door body can be sandwiched between the front end of the main shaft and the jaw portion.

4. The door opening device according to claim 3, characterized in that: A stopper is provided on the jaw side of the clamp, and the stopper determines an upper limit of movement of the pressing portion by the urging member.

5. The door opening device according to claim 3, characterized in that: The transmission portion is guided to move by the clamping member.

6. A lever handle operating device, mounted on a swing door having a lever handle, characterized in that: have: a fixing member having a setting portion fixed to a door body of the door near the lever handle; a movable member having an abutment portion capable of abutting against the grip portion of the lever handle and capable of moving relative to the fixed member; as well as an operating portion provided on the movable member and capable of receiving an input of a force for moving the movable member toward the setting portion, The fixing member has a column portion extending from the setting portion side toward the movable member side, The movable member includes a cylindrical portion having an opening on the fixed member side, wherein the cylindrical portion is slidable relative to the column portion in a state where the column portion is inserted into the inner side of the cylindrical portion from the opening. The contact portion includes a pressing surface that presses down the grip portion while sliding relative to the grip portion when the movable member is moved toward the installation portion.

7. The lever handle operating device according to claim 6, characterized in that: The operating portion is capable of receiving input of a force in a moving direction of the movable member toward the setting portion and input of a force from an obliquely upward direction intersecting the moving direction.

8. The lever handle operating device according to claim 6, characterized in that: The movable member includes a stopper that abuts against the gripping portion in a state where the column portion is inserted into the cylindrical portion when the movable member is moved in a direction opposite to the installation portion.

9. A door opening device, characterized in that: have: The door opening device according to any one of claims 1 to 5; and The lever handle operating device according to any one of claims 6 to 8.

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