Top hanging means of shaft suspension device

Abstract

To provide top hanging means of a shaft suspension device that can achieve workability and low costs and also can make dispersion as small as possible.SOLUTION: There is provided top hanging means 5 of a shaft suspension device that suspends a swing door D in a door frame W rotatably on an upper pivot shaft 15 and a lower pivot shaft 35 as spindles, the top hanging means comprising an upper supporter 10 with the upper pivot shaft 15 and a fall stopper 20 for the upper pivot shaft 15, wherein the fall stopper 20 has a base body 21 and a clamper 25, the base body 21 is a thin plate in a rectangular shape, the base body 21 also has a clamp groove part 21a formed to clamp the upper pivot shaft 15, and the clamper 25 is provided to ensure that an opening part of the clamp groove part 21a is freely opened and closed, and when the swing door D is fitted to the shaft suspension device J, the upper pivot shaft 15 comes into contact with a rear end of the clamp groove part 21a.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to an upper suspending means constituting an upper hinge portion in a suspending device for suspending a hinged door to a door frame so that the door can rotate about pivot shafts provided in upper and lower hinge portions. [Background technology]

[0002] Conventionally, a pivot hinge type hinge device has been used as a hinge device for swing doors that takes appearance into consideration, in which the swing door is supported by pivot shafts provided on the upper and lower hinge sections and rotatably hung on the upper and lower corners of the door frame.

[0003] As the pivoting device, the applicant has proposed an upper hoisting fitting that constitutes the upper hinge part of the pivoting device, which pivots a swing door to a door frame using pivot shafts provided on the upper and lower hinge parts as support shafts. This upper hoisting fitting comprises a pivot attachment on the swing door side that resiliently inserts an upper pivot shaft, which has a locking jaw protruding from the outer periphery between the head and neck at the tip, into a shaft cylinder embedded in the upper end of the swing door and holds it with its tip protruding, and a support that fixes the pivot attachment to the door frame corresponding to the pivot attachment. When the head is fitted into a bearing hole in the support to pivot the swing door to the door frame, a locking device is attached to the support and the neck is locked in a locking groove in the locking device, and the locking jaw is sandwiched between the support and the locking device to prevent the upper pivot shaft from coming off (Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2012-132150 Summary of the Invention [Problem to be solved by the invention]

[0005] However, with conventional overhead lifting fixtures, the upper pivot shaft moves up and down, which can cause it to come off during use. To prevent this, a stopper is required, which increases the number of parts, making the structure more complicated and increasing manufacturing costs. In addition, with the increasing number of high-ceiling doors, there is a demand for products that can be easily installed even when the upper hinges are difficult to reach.Furthermore, to prevent voyeurism, etc., it is desirable to minimize the scattering of the overhead suspension means.

[0006] The present invention has been made to solve the above problems, and its objective is to provide an overhead suspending means for a shaft fishing device that is easy to install and low cost, and that minimizes scattering. [Means for solving the problem]

[0007] In order to achieve the above object, the present invention provides a pivoting device that includes an upper suspending means having an upper hinge portion and a lower suspending means having a lower hinge portion, and that pivots a hinged door to a door frame so that the door can be pivoted around an upper pivot shaft (rotation shaft) provided in the upper hinge portion and a lower pivot shaft (rotation shaft) provided in the lower hinge portion as support shafts. The upper suspending means is a component of the pivoting device, and the upper suspending means is attached to the door frame and includes a support on which the upper pivot shaft is provided, and a stopper for the upper pivot shaft provided on the upper edge of the hinged door, The stopper has a base and a clamping body for preventing the upper pivot shaft from coming out, the base being a thin rectangular plate, a clamping groove portion for clamping the upper pivot shaft, and the clamping body is provided so that the opening of the clamping groove portion can be opened and closed freely, and is characterized in that when the upper pivot shaft is inserted into the clamping groove portion and the hinged door is attached to the shaft lifting device, the upper pivot shaft abuts against the rear end portion of the clamping groove portion (hereinafter, this invention may be referred to as the "top lifting means").

[0008] Here, this upper suspending means is a component of the axial suspension device, and the axial suspension device can adopt any appropriate structure as long as it is configured to axially suspend the hinged door so that it can be rotated around the door frame, using the upper and lower pivot axes provided on the upper and lower hinge portions of the upper suspending means and the lower suspending means as support axes. In particular, the upper suspending means and the lower suspending means may have any structure that can rotatably support the pivot shaft, and may be constructed by combining a vertical hole, a three-dimensional cam, a bearing, a recess, and other components.

[0009] There are also no restrictions on the shape of the door and door frame. Furthermore, the configurations of the upper and lower hinge portions and the pivot shafts, as well as the attachment positions of the upper and lower suspension means to the hinged door and door frame can also be determined appropriately.

[0010] Furthermore, the shapes of the support and stopper constituting the present overhead suspending means, as well as the shapes of the clamping groove and clamping body of the stopper, can be appropriately formed in a manner that achieves their respective functions and effects.

[0011] The clamping body is configured so that the opening of the clamping groove can be opened and closed freely, but the opening only needs to be configured so that it can be closed to the extent that the upper pivot shaft does not slip out of the clamping groove when the hinged door is attached to the door frame.

[0012] Furthermore, in this overhead hanging means, the clamping body is formed in a hook shape, and is configured so that when the upper pivot shaft is attached to the clamping groove, the tip can engage with the upper pivot shaft, and if it has a protruding piece for gripping, even if a load acts on the swing door in an unexpected direction, it is possible to prevent the upper pivot shaft from slipping out of the clamping groove and the supported swing door from falling. However, in order to achieve the intended effect, it is sufficient that at least a portion of the tip of the clamping body abuts against the upper pivot shaft, regardless of the degree of engagement.

[0013] Furthermore, if the present hanging means has a biasing member that biases the clamping body in a direction that closes the opening of the clamping groove, this is preferable because it allows for easy operation of the clamping body. In addition, in the main hanging means, it is preferable that the base body has a cylinder for attachment to the hinged door. Furthermore, it is preferable that the overhead suspending means is provided with a reinforcing plate for reinforcing the periphery of the clamping groove.

[0014] This upper lifting means comprises a support on which an upper pivot shaft is provided and a stopper for the upper pivot shaft, and a clamping body is provided so that the opening of the clamping groove formed in the base of the stopper can be opened and closed freely. Therefore, when attaching a hinged door equipped with a shaft tensioning device to a door frame or when removing the hinged door, the opening of the clamping groove can be easily opened and closed by operating the clamping body, allowing the upper pivot shaft to be inserted and removed, and when the insertion work is completed, the opening of the clamping groove can be closed to prevent the upper pivot shaft from slipping out.

[0015] The door frame is designed to be able to accommodate a wide range of applications, from door frames to door handles, to door handles. [Effects of the Invention]

[0016] According to the present invention, it is possible to provide an overhead suspending means for a shaft fishing device that has a simple structure, making it easy to install and low cost, and also minimizing scattering as much as possible. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a side view of a hinged door to which a shaft suspension device using the overhead suspension means of the present invention is attached. [Figure 2]This is a side view showing a shaft suspension device using the overhead suspension means of the present invention (when the hinged door is in a fully closed state). [Figure 3] This is a side view showing a shaft suspension device using the overhead suspension means of the present invention (when the hinged door is fully open). [Figure 4] FIG. 2 is an exploded perspective view of the upper suspending means of the present invention as viewed from above. [Figure 5] FIG. 2 is an exploded perspective view of the upper suspending means of the present invention as viewed from below. [Figure 6] 1 is a horizontal cross-sectional view of a stopper for the upper suspension means of the present invention. FIG. [Figure 7] This is an enlarged oblique view of a portion showing a method for attaching a hinged door equipped with an axis suspension device using the overhead suspension means of the present invention to a door frame, where (a) shows the state just before the opening of the clamping groove portion opens, (b) shows the state when the opening of the clamping groove portion opens, and (c) shows the state when the opening of the clamping groove portion is closed. [Figure 8] This is an enlarged top view of a hinged door equipped with a shaft suspension device using the overhead suspension means of the present invention, showing the case where it is being removed from the door frame, (a) showing the time of installation, and (b) showing the time of removal. [Figure 9] (a) is an enlarged side view of a portion of a hinged door equipped with an axial suspension device using the overhead suspension means (another embodiment) of the present invention, and (b) is an enlarged view of the X portion of the same figure. DETAILED DESCRIPTION OF THE INVENTION

[0018] An embodiment of the overhead suspending means will be described in detail below with reference to the drawings. In the description of the drawings, the same elements are given the same reference numerals, and duplicated explanations will be omitted. Furthermore, each component can be modified as appropriate, and explanations of detailed structures that are not directly related to the present invention will be omitted. In the following description, the left-right direction is based on Fig. 1 (the door tail direction is the left direction, and the door tip direction is the right direction). In addition, when describing the positional relationship with the hinged door D in the description of each element and each member, the door D is attached to the door frame W and closed.

[0019] [Configuration of shaft tensioning device] (1) Overall structure of the shaft fishing device The shaft fishing device J, which uses the main upper suspending means 5 as a component, is a pivot hinge type shaft fishing device equipped with a pair of upper and lower hinge parts. The shaft fishing device J is equipped with the main upper suspending means 5 which constitutes the upper hinge part and the lower suspending means 6 which constitutes the lower hinge part (Fig. 1).

[0020] On the other hand, the hinged door D, which is a rectangular door panel, is attached to a door frame W formed by an upper frame W1 and left and right vertical frames W2, W3 located at the top and left and right of the rectangular opening, in a suspended state by a shaft suspension device J so that it can be opened and closed. That is, the hinged door D is axially suspended at the upper corner of the left vertical frame W2 of the door frame W on the door end side by an upper suspension means 5 of the suspension device J, and at the lower end by a lower suspension means 6.

[0021] The vertical edge of the wood at the end of the swing door D is chamfered (processed to create a rounded surface) to create a curved section at the corner (Figure 6), so that the swing door D does not interfere with the door frame W when opening and closing.

[0022] In addition, vertical holes of a predetermined shape are formed near the upper corner, which is the mounting position of the upper hanging means 5 on the upper end surface of the hinged door D, and near the lower end, which is the mounting position of the lower hanging means 6 on the lower end surface of the hinged door D (hereinafter, the upper vertical hole will be referred to as the "upper vertical hole D1" and the lower vertical hole will be referred to as the "lower vertical hole D2" (Figures 2 and 3)). The hinged door D in this embodiment is a normally open type that is in an open state when not in use, but may also be a normally closed type.

[0023] (2) Configuration of the suspension means The lower suspension means 6 includes a lower support member 30 and a pivot mount 40 (FIGS. 2 and 3). The lower support 30 has an angle member 31 bent into an L shape having a horizontal plate portion 32 and a vertical plate portion 33, and a lower pivot shaft 35. The lower pivot shaft 35 has a predetermined length and is provided at the tip of the horizontal plate portion 32 so as to protrude upward. The vertical plate portion 33 of the lower support member 30 is screwed to a position a predetermined height above the lower end of the left vertical frame W2 of the door frame W, and the horizontal plate portion 32 extends horizontally.

[0024] The pivot mount 40 mainly comprises an upper cam 41 and a lower cam 42, which are a type of three-dimensional cam. The upper cam 41 and the lower cam 42 are formed as a pair of identical upper and lower shapes. That is, the upper cam 41 and the lower cam 42 are formed as modified cylinders with inclined cam surfaces 41a, 42a, respectively, formed by cutting a flat cylinder obliquely. The inclined cam surfaces 41a, 42a are formed so that the highest peak and lowest valley are positioned point-symmetrically with respect to the center of rotation and have a continuous gradient up to the highest peak and lowest valley.

[0025] The upper cam 41 is embedded in the lower vertical hole D2 with the inclined cam surface 41a facing downward. The lower cam 42 is disposed on the upper surface of the horizontal plate portion 32 of the lower support tool 30 via the rectangular mounting plate 34 with the inclined cam surface 42a facing upward. The upper cam 41 and the lower cam 42 are arranged so that the inclined cam surfaces 41a, 42a face each other and are superimposed, and so that the central hole of the upper cam 41 and the central hole of the lower cam 42 (both not shown) are aligned.

[0026] A circular hole (not shown) is formed in the center of the mounting plate 34, and the circular hole is aligned with the central hole of the lower cam 42 and the central hole of the upper cam 41. The lower pivot shaft 35 is inserted through the circular hole, the central hole of the lower cam 42 and the central hole of the upper cam 41, and the lower pivot shaft 35 serves as a support shaft to pivotally support the hinged door D.

[0027] (3) Configuration of the main suspension means The main upper suspending means 5 of the first embodiment includes an upper support member 10 and a retaining member 20 for the upper pivot shaft 15 (FIGS. 4 and 5).

[0028] The upper support tool 10 has an angle member 11 that is bent into an L shape and has a horizontal plate portion 12 and a vertical plate portion 13, and an upper pivot shaft 15. The upper pivot shaft 15 has a predetermined length and is provided at the tip of the horizontal plate portion 12 so as to protrude downward. The vertical plate portion 13 of the upper support member 10 is screwed to a position a predetermined height below the upper end of the left vertical frame W2 of the door frame W (symbol 13a indicates a mounting hole). The horizontal plate portion 12 extends horizontally and abuts against the underside of the upper frame W1.

[0029] The retaining member 20 includes a base body 21 made of synthetic resin, a reinforcing plate 24 made of metal, a holding member 25, and a torsion spring 26 (biasing member). The base 21 is a thin plate having a substantially rectangular shape, and has a clamping groove 21a formed therein, which has a predetermined width and extends from the short side to the approximate center. The short side of the clamping groove 21a is open, and the tip of the opening (hereinafter referred to as the "opening tip") is formed to be wide so that the upper pivot shaft 15 can be easily inserted and removed.

[0030] Furthermore, a cylinder 22 is provided on the underside of the end (hereinafter referred to as the "rear end") of the base 21 opposite the tip of the opening of the clamping groove 21a, with the rear end as its center. This cylinder 22 is formed in a shape that fits into the upper vertical hole D1 of the hinged door D, and a vertical groove 22a is formed on the rear end side to prevent interference with the rotation shaft 23 described below. Furthermore, an elongated insertion hole 22b for the upper pivot shaft 15 is formed from the center of the cylinder 22 toward the tip of the opening. The elongated insertion hole 22b is formed wider on the peripheral side to make it easier to insert the upper pivot shaft 15.

[0031] A U-shaped groove 21b is formed so as to surround the peripheral end of the sandwiching groove portion 21a in the base 21. A reinforcing plate 24 formed in the same shape as the U-shaped groove 21b is inserted into the U-shaped groove 21b, and the periphery of the sandwiching groove portion 21a in the base 21 is reinforced. The protruding portion of the U-shaped groove 21b (the portion corresponding to the bottom position of the U-shape) and the protruding portion of the reinforcing plate 24 are formed with central holes 21h and 24a, respectively.

[0032] A gap 21c is formed in the horizontal direction at approximately mid-height on the side of the base 21, one of which is the long side on the door-tip side when the hinged door D is open (Figure 3), for inserting a clamping body 25 and guiding the rotational movement of the clamping body 25. The gap 21c is formed in a shape that surrounds one side of the U-shaped groove 21b. The door-end side surface of the base 21 and the side surface on the side of the clamping groove 21a (hereinafter referred to as the "clamping groove side surface") on the tip side of the opening are open (FIG. 6).

[0033] In addition, an attachment groove 21d is provided for attaching one end of the torsion spring 26 so that it connects to the protruding portion of the U-shaped groove 21b of the base 21, and attachment portions 21e, 21f are formed at the four corners of the base 21 for attachment to the hinged door D.

[0034] The clamping body 25 is a member provided to prevent the upper pivot shaft 15 from slipping out of the clamping groove portion 21a, and is formed in a generally hook shape. A circular hole 25a is formed at the base end of the clamping body 25, and a protruding piece 25b is provided at the bent portion. In addition, a vertical groove 25c is formed near the circular hole 25a to prevent interference with the mounting screw 28.

[0035] This clamping body 25 has a rotating shaft 23 inserted from below with the circular hole 25a aligned with the positions of the central holes 21h, 24a of the base 21 and the reinforcing plate 24, and is supported so as to be freely rotatable using the gap 21c as a guide, so that the tip 25d of the clamping body 25 can freely appear and disappear from the side surface of the clamping groove portion of the gap 21c. A recess 21g is formed on the opposing side surface of the clamping groove portion, and the recess 21g can engage with the tip end 25d of the clamping body 25. When the upper pivot shaft 15 is inserted into the clamping groove portion 21a, the clamping body 25 can engage with the upper pivot shaft 15.

[0036] In addition, one end of the torsion spring 26 is attached to the mounting groove 21d of the base 21, and the other end is attached near the vertical groove 25c of the clamping body 25, and the torsion spring 26 constantly applies a biasing force to the clamping body 25 in a direction that closes the opening of the clamping groove portion 21a.

[0037] The stopper 20 has its cylinder 22 fitted into the upper vertical hole D1 of the hinged door D, and is attached to the end face of the wood near the corner at the upper end of the hinged door D at the attachment parts 21e, 21f of the base 21 with attachment screws 28. When the hinged door D is attached to the door frame W, the tip of the upper pivot shaft 15 is inserted into the elongated insertion hole 22b of the cylinder 22 of the stopper 20 and is axially supported so as to be rotatable. The upper pivot shaft 15 is movable in the up and down direction of the clamping groove portion 21a of the base body 21 of the stopper 20 depending on whether the hinged door D is open or closed (FIGS. 2 and 3).

[0038] [Method of attaching and detaching the shaft suspension device to and from the door frame] Next, a method for attaching the shaft suspension device J to the door frame W and a method for removing the shaft suspension device J from the door frame W will be described. In addition, the upper support 10 of the main upper suspending means 5 of the shaft suspension device J, and the lower support 30 (including the lower pivot shaft 35) of the lower suspending means 6 and the lower cam 42 constituting the pivot mounting 40 are attached to predetermined positions of the left vertical frame W2. In addition, the upper cam 41 constituting the pivot mounting 40 of the lower suspending means 6 is embedded in the lower vertical hole D2 of the hinged door D, and the stopper 20 of the upper suspending means 5 is attached to the hinged door D.

[0039] (1) How to attach a swing door to a door frame First, the lower pivot shaft 35 of the suspending means 6 of the shaft suspension device J is inserted into the lower vertical hole D2 of the hinged door D and then into the central hole of the upper cam 41. Then, the hinged door D is attached to the suspending means 6 so that the inclined cam surfaces 41a, 42a of the upper cam 41 and the lower cam 42 face each other.

[0040] Next, the stopper 20 of the upper hanging means 5 provided on the hinged door D is gradually brought closer to the upper pivot shaft 15 from the clamping groove 21a side of the base body 21, and is brought into the opening tip side of the clamping groove 21a (FIG. 7(a)). At this time, the opening of the clamping groove 21a in the clamping body 25 is blocked by the biasing force of the torsion spring 26. However, when the upper pivot shaft 15 abuts against the clamping body 25, the clamping body 25 rotates (counterclockwise in FIG. 7(b)) due to the pressing force, opening and being inserted into the clamping groove 21a. Thereafter, the biasing force of the torsion spring 26 returns the clamping body 25 to its original position, and the opening of the clamping groove 21a is blocked (FIG. 7(c)). When the swing door D is attached to the shaft tensioning device J, the weight of the swing door D acts in a direction that tilts the door tip downward, so that the upper pivot shaft 15 abuts against the rear end of the clamping groove portion 21a and is stably supported.

[0041] (2) How to remove the hinged door from the door frame First, the protruding piece 25b of the clamping body 25 of the stopper 20 in the upper hanging means 5 is grasped (FIG. 8(a)), and the clamping groove 21a is rotated in the direction that opens the clamping groove 21a (counterclockwise in FIG. 8(b)), forming an opening, and the upper pivot shaft 15 is pulled out from the clamping groove 21a. When the gripping of the protruding piece 25b of the clamping body 25 is released, the opening of the clamping groove 21a is closed by the biasing force of the torsion spring 26.

[0042] Next, the lower pivot shaft 35 of the lower suspension means 6 of the shaft suspension device J is pulled out from the lower vertical hole D2 of the hinged door D, and the hinged door D is removed from the lower suspension means 6, and further, the hinged door D is removed from the door frame W.

[0043] [Effects of the overhead lifting means] The overhead suspending means 5 includes an upper support 10 on which an upper pivot shaft 15 is provided, and a stopper 20 for the upper pivot shaft 15, and a clamping body 25 is provided so that the opening of a clamping groove 21a formed in a base 21 of the stopper 20 can be opened and closed. Therefore, when attaching a hinged door D provided with a shaft suspension device J to a door frame W or when removing the hinged door D, the opening of the clamping groove 25a can be easily opened and closed by operating the clamping body 25, allowing the upper pivot shaft 15 to be inserted and removed, and when the insertion work is completed, the opening of the clamping groove 21a can be closed to prevent the upper pivot shaft 15 from coming out.

[0044] In this way, by using the main overhead hoisting means 5, it is possible to realize a shaft hoisting device J with a simple structure. Also, since only the minimum necessary distance is provided between the upper support 10 of the main overhead hoisting means 5 and the hinged door D, it is possible to reduce scattering between the door frame W and the hinged door D.

[0045] Furthermore, the clamping body 25 of the anti-pullout device 20 in this upper hanging means 5 is roughly hook-shaped, and is configured so that when the upper pivot shaft 15 is attached to the clamping groove portion 21a, the tip portion can engage with the upper pivot shaft 15. Therefore, even if a load acts on the hinged door D in an unexpected direction, the upper pivot shaft 15 can be prevented from slipping out of the clamping groove portion 21a, preventing the supported hinged door D from falling.

[0046] Furthermore, the upper hanging means 5 has a torsion spring 26 that biases the clamping body 25 in a direction that closes the opening of the clamping groove 21 a. Therefore, when the upper pivot shaft 15 is inserted into the clamping groove 21 a during installation of the hinged door D, the opening of the clamping groove 21 a is closed without any special operation, which is preferable because it allows for easy operation of the clamping body 25.

[0047] Furthermore, this upper suspending means 5 uses a synthetic resin base 21 for the stopper 20 and is provided with a metal reinforcing plate 24 for reinforcing the periphery of the clamping groove 21a. Therefore, the reinforcing plate 24 increases the strength of the stopper 20, and the coefficient of friction between the clamping groove 21a formed in the base 21 and the upper pivot shaft 15 is reduced, allowing for easy sliding, thereby improving workability.

[0048] [Another embodiment of the main suspension means] Other embodiments may also be employed as the main hanging means. For example, this upper suspending means 5' differs from the above-described upper suspending means 5 in the shape of the upper pivot shaft 15' of the upper support tool 10' and the clamping groove portion 21a' of the base 21' of the stopper tool 20'. That is, a flange 15a' is formed at the lower tip of the upper pivot shaft 15'. The sandwiching groove 21a' of the base 21' is formed in a convex shape when viewed from the front. Therefore, when the upper pivot shaft 15' is inserted into the sandwiching groove 21a', the flange 15a' of the upper pivot shaft 15' is engaged with the boundary between the wide portion 21j' and the narrow portion 21k' of the sandwiching groove 21a' (FIG. 9).

[0049] According to this overhead hanging means 5', when the hinged door D is attached to the door frame W, when the upper pivot shaft 15' is inserted into the clamping groove portion 21a', the presence of the flange portion 15a' of the upper pivot shaft 15' means that it can be inserted only into the wide portion 21j' of the clamping groove portion 21a', so that the pivot shaft 15' can be easily inserted into the correct location, improving workability.

[0050] Furthermore, although not shown, for the upper support of this overhead hanging means, which has a horizontal plate portion and a vertical plate portion, by providing an upper pivot axis in the horizontal plate portion at a position eccentric to the vertical plate portion, it is possible to prevent interference with the door frame when the swing door is rotated.

[0051] While one example of a preferred embodiment of the present invention has been described above, the present invention is not limited to this embodiment, and appropriate design modifications are possible within the scope of the spirit of the present invention. Furthermore, the above invention-specific matters define the minimum necessary components, and other components may be added as long as they do not impair the effects of the invention.

[0052] In particular, in the above embodiment, the lower suspending means is configured using two three-dimensional cams. However, various configurations are possible, such as inserting a lower pivot shaft with a ball member at its tip into a vertical hole in the hinged door so that it can rotate freely, or supporting the lower pivot shaft with a bearing so that it can rotate freely.

[0053] Furthermore, the support device and pivot shaft removal prevention device (clamping groove portion and clamping body), which are components of the overhead lifting means described in the claims, have the basic configuration, and various components can be used as long as they can achieve the desired function and effect. [Explanation of symbols]

[0054] J shaft fishing device W door frame W2 left vertical frame D. Swing door 5.5' overhead lifting means 6. Hanging means 10,10' upper support 11,11' angle iron 12,12' horizontal plate part 13,13' Vertical board section 15,15' Upper pivot axis 15a' Tsubabe 20,20' Stopper 21,21' Base 21a,21a' Holding groove 23 Rotating shaft 25 Clamping body 26 Torsion spring (biasing member) 30 Lower support 31 Angle iron 32 Horizontal plate part 33 Vertical plate section 35 Lower pivot axis 40 Pivot fitting 41 Upper cam 42 Lower cam

Claims

1. The device is provided with an upper suspending means having an upper hinge portion and a lower suspending means having a lower hinge portion, The upper pivot shaft provided in the upper hinge portion and the lower pivot shaft provided in the lower hinge portion are used as support shafts to pivotally support a hinged door to a door frame. The upper pivot shaft is a component of the pivoting device, a support attached to the door frame and having the upper pivot shaft; a stopper for the upper pivot shaft provided at the upper edge of the hinged door, The stopper is a base body and a clamping body for preventing the upper pivot shaft from coming out, The substrate is a thin plate having a rectangular shape, The base body is formed with a clamping groove for clamping the upper pivot shaft, The clamping body is provided so that an opening of the clamping groove can be freely opened and closed, An upper pivot shaft is inserted into the clamping groove portion, and when the hinged door is attached to the shaft suspension device, the upper pivot shaft is in contact with the rear end of the clamping groove portion.

2. The clamping body is formed in a hook shape, and when the upper pivot shaft is attached to the clamping groove, its tip is configured to be able to engage with the upper pivot shaft, and it has a protruding piece for gripping.

3. 2. The suspending means for a shaft fishing device according to claim 1, wherein the base body is provided with a cylinder for attachment to the hinged door.

4. 2. The suspending means of a shaft fishing device according to claim 1, wherein the stopper is provided with a reinforcing plate for reinforcing the periphery of the clamping groove portion.

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