JP2012132150A - Top-hinged fitting of pivot device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a top-hinged fitting of a pivot device that surely pivotally attaches an upper pivot shaft in a retained state in a bearing hole of a supporting implement so that a hinged door is pivoted on a door frame.SOLUTION: In a top-hinged fitting A2, while a head portion 44a is fit in a bearing hole 35 of a supporting implement 30, a neck portion 44b is engaged with an engaging groove 60 at a lower face 50a of a retaining implement 50, so that an upper pivot shaft 45 is pivotally attached to the supporting implement in a retained state. To achieve the above status, the shaft diameter H of the head portion of the upper pivot shaft, the shaft diameter N of the neck portion of the upper pivot shaft, and the groove width W of the engaging groove of the retaining implement are configured so as to satisfy H>W≥N, so that the engaging groove engages only with the neck portion, not the head portion, of the upper pivot shaft when the retaining implement 50 is mounted to a supporting plate part 30b of the supporting implement.

Description

  TECHNICAL FIELD The present invention relates to a shaft fishing apparatus that pivots an opening door pivotally on a door frame with a pivot shaft provided in an upper and lower hinge portion as a fulcrum, and particularly relates to an upper suspension fitting constituting an upper hinge portion.

  Conventionally, some hinge devices for hinged doors are mounted inconspicuously and have a good appearance, so that the pivot doors provided on the upper and lower hinges pivot on the hinged door so that the upper and lower corners of the door frame can be rotated. There are many so-called pivot hinge type shaft fishing devices that are hung on the part.

  However, in this type of shaft fishing device, when there is little clearance between the ceiling-side upper frame portion of the door frame and the opening door, the upper hinge portion that protrudes upward when the opening door is suspended from the door frame As a result, there is a problem that it is difficult to hang the open door, and depending on the narrowness of the gap, it may be impossible to hang the door.

  Therefore, among conventional shaft fishing devices, a pivot hinge type shaft fishing device has been proposed in which an upper suspension fitting constituting the upper hinge portion is improved in order to solve such a problem. In this conventional shaft fishing device, as shown in FIG. 13, for example, as shown in FIG. 13, a hook-shaped retaining jaw 1c is provided in a ring shape on the outer periphery between the head 1a and the neck 1b of the shaft tip 1. The upper pivot shaft p is inserted into a shaft cylinder 2 embedded in the upper end of the opening door d, and is elastically urged by an urging spring 3 so that the tip 1 protrudes and can be moved forward and backward. It is composed of a pivot attachment a and an angle member support b provided with a bearing hole 5 in a support plate part 4b protruding horizontally with respect to a mounting plate part 4a fixed to a sleeve panel of the door frame f. Is suspended from the door frame f, the tip 1 of the upper pivot shaft p is pressed against the biasing spring 3, retracted once, and then protruded by the biasing force of the biasing spring 3. By fitting 1a into the bearing hole 5 of the support b, the installation location of the opening door d is between the opening door d and the upper frame portion. Even if there is almost no gap, the opening door d can be axially fished to the door frame f, and at that time, as shown in FIG. The stopper 6 is mounted, the neck 1b of the upper pivot shaft p is locked in the locking groove 6a of the stopper 6, and the stopper jaw 1c is sandwiched between the lower surface of the stopper 6 and the support plate 4b. The upper pivot shaft p is prevented from coming off.

JP 2008-127740 A

  However, conventionally, the upper suspension bracket of the shaft fishing device as described above can prevent the upper pivot shaft p from coming off by locking the neck portion 1b in the locking groove 6a of the stopper 6 when the opening door d is suspended. As described above, the retainer 6 is formed such that the groove width w of the locking groove 6a is such that the neck 1b of the upper pivot shaft p can be locked to the locking groove 6a. Since the portion 1a has the same shaft diameter e as that of the neck portion 1b, as shown in FIG. 15, even if it is in a poorly fitted state where only a part of the head portion 1a is fitted in the bearing hole 5 of the support b, When the stopper 6 is attached to the support plate portion 4b of the support b, the head 1a is erroneously locked to the locking groove 6a. In some cases, the opening door d is pivotally supported by the upper pivot shaft p into which a part of the shaft is fitted, and the shaft is fished. Then, conventionally, since the upper suspension metal fitting is usually located at a high place where it is difficult to see, the operator is unaware that the upper pivot shaft p is pivotally attached to the support tool b in a state in which the upper pivot shaft p is inadequately prevented from being opened. When d vibrates due to an impact, the upper pivot shaft p is displaced, and the fitting with the bearing hole 5 of the support tool b is released and the door d falls from the door frame f.

  Accordingly, an object of the present invention is to provide an upper suspension fitting for a shaft fishing device that pivots securely on a bearing hole of a support member in a state where the upper pivot shaft is prevented from coming off and pivots the door to the door frame. .

  In view of this, the invention described in claim 1 is, for example, as shown in the embodiment shown below, with the pivot shafts 15 and 45 provided in the upper and lower hinge portions serving as pivots, and the door D can be pivoted. An upper pivot shaft A2 that constitutes the upper hinge portion of the fishing shaft A for fishing, and that has a retaining jaw portion 44c projecting from the outer periphery between the head portion 44a and the neck portion 44b of the tip 44. 45. A pivoting tool 40 on the side of the opening door, which is inserted in a shaft cylinder 39 embedded in the upper end of the opening door D so as to be able to move forward and backward, and is gripped in a state in which the tip 44 protrudes. 40 and a support tool 30 fixed to the corresponding door frame F. When the head 44a is fitted into a bearing hole 35 provided in the support tool 30 and the door D is axially fished to the door frame F. The retaining member 50 is mounted on the support member 30 and the retaining groove 50 has the retaining groove. In the upper suspension bracket A2 of the shaft fishing device A, the neck portion 44b is locked to 0, and the retaining jaw portion 44c is sandwiched between the support member 30 and the retaining member 50 to retain the upper pivot shaft 45. When the shaft diameter of the head portion 44a of the upper pivot shaft 45 is H, the shaft diameter of the neck portion 44b is N, and the groove width of the locking groove 60 of the retainer 50 is W, H> W ≧ N. It is characterized by becoming.

  According to a second aspect of the present invention, in the upper suspension fitting of the shaft fishing device according to the first aspect, for example, as in the illustrated embodiment shown below, the support 30 is a mounting plate that is fixed to the door frame F The stopper portion 33 is formed in an L shape with the portion 30a and the support plate portion 30b having the bearing hole 35 formed at the tip, and gradually becomes wider on the upper surface of the support plate portion 30b from the tip side toward the mounting plate portion side. The retainer 50 is formed in a flat cap shape in accordance with the outer shape of the support plate 30b of the support 30, and the neck 44b of the upper pivot shaft 45 is engaged with the lower surface 50a. The locking groove 60 is provided, and a locking groove 65 is provided at a position corresponding to the locking groove 60 on the upper surface 50b to engage the stopper portion 33 when the support plate portion 30b is mounted. Groove width on the inlet side of the locking groove 65 The 'is characterized by being smaller than the shaft diameter N of the neck portion 44b of the upper pivot shaft 45.

  According to the first aspect of the present invention, when the opening door is suspended, the retaining member is in a state of incomplete fitting in which only a part of the head is fitted in the bearing hole of the supporting member. Even if it is going to be mounted on the support plate portion of the support, the groove width W of the locking groove of the retainer is such that the head diameter H of the upper pivot shaft, the shaft diameter N of the neck, and H> W ≧ N. Since the head is not at least smaller than the head of the upper pivot shaft and the head cannot be engaged with the locking groove, the operator must not fit the upper pivot shaft into the bearing hole of the support. As a result, it is possible to prevent the occurrence of problems such as the upper pivot shaft and the bearing hole of the support being disengaged and the door falling from the door frame due to this hanging mistake. Can do.

  According to the second aspect of the present invention, when the hinged door is suspended, the head is fitted into the bearing hole of the support tool, and then the stopper is attached to the support plate portion of the support tool to mount the upper pivot shaft. Even if the lower surface and the upper surface are mistakenly mounted in the opposite direction when they are prevented from coming off, the upper pivot shaft's neck should come out so that the lower surface's locking groove engages with the upper surface's locking groove. Since the groove width on the entrance side of the stopper groove is smaller than the diameter of the neck of the upper pivot shaft, the neck cannot be engaged with the stopper groove. You can notice a mistake that is not attached to the support plate with the stopper on the support plate engaged, and as a result, if the opening door vibrates due to an impact, this attachment error causes Prevent the stopper from coming off the support plate of the support. Can.

(A) is a sectional view taken along line XX showing a state in which the opening door is hung on the door frame by the upper suspension fitting of the shaft fishing apparatus according to the present invention, (b) is a longitudinal sectional view thereof, and (c) is a retainer. It is a bottom view of a tool. It is a disassembled perspective view which shows the lower hanging metal fitting of a shaft fishing device. It is an assembly perspective view which shows a lower suspension metal fitting. It is a front view which shows a lower hanging metal fitting. It is a disassembled perspective view which shows an upper suspension metal fitting. It is a front view which shows an upper pivot axis | shaft. It is an assembly perspective view which shows a support tool, a pivot attachment, and a retainer. It is a front view which shows a support tool, a pivot attachment, and a retainer. (A) is a perspective view of a retainer, (b) is a perspective view showing the retainer upside down, (c) is a plan view of the retainer, and (d) is a bottom view of the retainer. . It is a front view of the surroundings of a door which shows the state which hung the open door on the door frame with the shaft fishing apparatus. It is a perspective view of the surroundings of a door which shows the state which hung the open door on the door frame with the shaft fishing apparatus. (A) is a line YY sectional view showing a state in the middle of pivoting the opening door with the upper hanging metal fitting, and (b) is a longitudinal sectional view around the door. It is a longitudinal cross-sectional view of the surroundings of a door which shows the state which carried out the axial fishing of the opening door to the door frame with the upper suspension metal fitting of the conventional shaft fishing apparatus. (A) is a sectional view taken along line xx in FIG. 13, and (b) is a bottom view showing a conventional retainer. (A) is a cross-sectional view taken along line yy showing a state in which the locking groove of the retaining member is accidentally passed through the pivot shaft head when the door is pivoted to the door frame with the conventional upper hanging metal fitting, (b) ) Is a longitudinal sectional view around the door.

  Hereinafter, the best mode of the present invention will be described with reference to the drawings.

  FIG. 10 is a front view around the door showing a state in which the opening door is suspended from the door frame by the shaft fishing apparatus according to the present invention, and FIG. 11 is a perspective view. In the figure, symbol A is a pivot hinge type shaft fishing device having a pair of upper and lower hinge portions, D is an opening door, and F is a door frame that supports the opening door D. The shaft fishing device A is composed of a lower hanging metal fitting A1 as a lower hinge part and an upper hanging metal fitting A2 according to the present invention as an upper hinge part, and the lower side of the opening door D and the door frame F is attached to the lower hanging metal fitting A1. Thus, the upper side is axially fished by the upper suspension metal fittings A2, and the opening door D is suspended from the door frame F so as to be rotatable.

  The lower suspension fitting A1 of the shaft fishing device A includes a support 11 that is screwed to the bottom end of the one-side sleeve panel 10 of the door frame F, and a pivot attachment 12 that is pivotally attached to the support 11. As shown in FIGS. 2 and 3, the support 11 is an angle member made of an attachment plate portion 11a and a support plate portion 11b by bending into an L shape, and a shaft hole 13 is provided near the tip of the support plate portion 11b. A lower pivot shaft 15, a lower cam 16, a guide plate 19, and a shaft fixing tool 20 are provided, and the pivot attachment 12 includes an upper cam 17 and a door mounting member 18.

  The lower cam 16 is formed on the upper end of the cylindrical body 16a with the inclined cam surfaces 21 and 22 of the double chevron cam portions of the outer layer and the inner layer facing upward, and radially on the bottom surface of the cylindrical body 16a with the axial center as the center. A plurality of wedge-shaped concave grooves 23 are formed downward at equal intervals. The upper cam 17 has the inclined cam surfaces of the double chevron cam portions of the outer layer and the inner layer formed downward at the lower end of the cylindrical body 17a. The guide plate 19 is provided with the same number of wedge-shaped projections 26 that can be fitted to the wedge-shaped concave grooves 23 radially and equidistantly on the surface of the disk portion 19a. A one-stage adjusting means is formed. In the illustrated example, the number of wedge-shaped concave grooves 23 and wedge-shaped projections 26 is 18 each, and the central angle α with the adjacent one is set to 20 °. Accordingly, in the lower suspension fitting A1, when the straight line connecting the front and rear centers of the support plate portion 11b of the support member 11, that is, the direction of the door surface in the fully closed position, is the reference line S, the reference line S and the inclined cam surfaces 21 and 22 are used. According to the first-stage adjustment means for adjusting the displacement angle β formed by the lines connecting the tops of the wedges, the wedge-shaped concave groove 23 and the wedge-shaped projection 26 are shifted by one pitch (α = 20 degrees). For example, the displacement angle β is adjusted to 20, 40, 60, 80, 100, 120.

  Further, the guide plate 19 is provided with an engagement recess 27 on the outer periphery of the back surface of the disk portion 19a at an interval of 90 degrees in the circumferential direction around the axis, while the front edge of the support plate portion 11b of the support 11 is provided. On the reference line S, an engaging protrusion 28 that can engage with the engaging recess 27 is provided. On the other hand, the shaft fixing tool 20 is formed in a flat cap shape so that it can be mounted on the support plate part 11b of the support tool 11, and the guide plate 19 is engaged at a symmetrical position with the bearing convex part 20a protruding from the bottom center. A pair of positioning projections 20b with which the recesses 27 are engaged project downward, and the engagement projections 28 on the support plate portion 11b and the engagement recesses 27 of the guide plate 19 form a second-stage adjusting means.

  The lower suspension fitting A1 is configured such that the engagement protrusion 28 of the support 11 is engaged with the engagement recess 27 of the guide plate 19, the center hole 29 is aligned with the shaft hole 13, and the guide plate 19 is superimposed on the support plate portion 11b. After fixing, the top of the inclined cam surface is aligned with the reference line S and the wedge-shaped projection 26 of the guide plate 19 and the wedge-shaped concave groove 23 of the lower cam 16 are fitted, and then the lower pivot shaft 15 is connected to the shaft hole 13 and the center. The holes 29 and 24 are sequentially inserted, and the shaft tip protrudes from the lower cam 16 so as to stand on the support plate portion 11b. The lower cam 16 is pivoted by fitting the wedge-shaped protrusion 26 and the wedge-shaped groove 23. The inclined cam surfaces 21 and 22 are fixed upward so that they cannot rotate around the core. On the other hand, after the upper cam 17 is fitted to the cylindrical cam cap 14 of the door mounting member 18 with the inclined cam surface facing downward, the cam cap 14 is fixed to the mounting plate 31. Then, the support 11 screws the mounting plate portion 11a to the lower end of the one-sided sleeve panel 10 while the pivoting tool 12 holds the cam cap 14 with the inclined cam surface of the upper cam 17 facing downward. The mounting plate 31 is screwed by being embedded in the suspension base side of the lower end of the opening door D. Next, the lower pivot shaft 15 is passed through the shaft hole 13 and stood on the support plate portion 11b of the support 11 and then inserted into the center holes of the lower cam 16 and the upper cam 17 so that the inclined cam surfaces face each other. Thus, the upper cam 17 is held so as to be rotatable about the lower pivot shaft 15 and guided by the inclined cam surfaces 21 and 22 so as to move up and down, as shown in FIG. 3 and FIG. The hanging bracket A1 is assembled.

  Therefore, in the lower suspension fitting A1, according to the first-stage adjusting means for adjusting the displacement angle β of the top portion of the inclined cam surface, the wedge-shaped concave groove 23 and the wedge-shaped protrusion 26 are shifted by one pitch (α = 20 degrees). If fitted, the displacement angle β is adjusted to 20, 40, 60, 80, 100, 120... In units of 20 degrees. In addition, a pair of positioning positions at symmetrical positions in the direction orthogonal to the same reference line S from the state in which the engaging recess 27 of the guide plate 19 is engaged with the engaging protrusion 28 of the support 11 on the reference line S. The displacement angle β is adjusted by engaging the projections 20b and 20b. Therefore, according to the second-stage adjusting means for the displacement angle β of the top portion of the inclined cam surface, if the engagement recess 27 of the guide plate 19 is selectively engaged with the protrusion in the direction shifted by 90 degrees, the wedge shape The wedge-shaped concave groove 23 is adjusted with a deviation of 1/2 pitch (α = ± 10 degrees) with respect to the protrusion 26. Accordingly, the lower suspension metal fitting A1 selects the fitting position of the wedge-shaped concave groove 23 with respect to the wedge-shaped protrusion 26, and the protrusions 28, 20b, provided on the support tool 11 and the shaft fixing tool 20 of the engagement concave part 27 of the guide plate 19. The displacement angle β of the top portion of the inclined cam surface is finely adjusted at a fine pitch by a two-step adjustment that combines the selection of the engagement angle position with respect to 20b, whereby the closing position of the opening door D without the need for component replacement. The open position can be finely adjusted easily.

  Now, as shown in FIGS. 10 and 11, the upper suspension metal fitting A <b> 2 of the present invention includes a support tool 30 assembled on the door frame F side, a pivot attachment 40 assembled on the opening door D side, and a pivot attachment 40. And a retainer 50.

  As shown in FIG. 5, the support tool 30 is an angle member made up of an attachment plate portion 30 a and a support plate portion 30 b that are bent into an L shape and have a plurality of screw holes, and a detent hole 32 is formed in the support plate portion 30 b. The stopper portion 33 is provided so as to be raised one step between the anti-rotation hole 32 on the upper surface of the support plate portion 30b and the mounting plate portion 30a. A slippery resin bearing member 24 having a round bearing hole 35 is fitted into the rotation stop hole 32. The stopper portion 33 is formed so as to be gradually wider from the distal end side toward the mounting plate portion 30a side. Accordingly, as shown in FIG. 1, the support tool 30 screws the mounting plate portion 30 a to the bottom end of the one-sided sleeve panel 10 to project the support plate portion 30 b horizontally.

  As shown in FIG. 5, the pivot attachment 40 includes an upper pivot shaft 45, a shaft tube 39 that holds the upper pivot shaft 45, and a biasing spring 55 that is a compression coil spring that elastically biases the upper pivot shaft 45. Prepare.

  The upper pivot shaft 45 is made of metal and has an elongated cylindrical shape, as shown in FIG. 6, and a head 44 a that is the most projecting end that fits the tip 44 of the column 45 a into the bearing hole 35 of the support tool 30. It is formed by a neck portion 44b having a shaft diameter N that is one step narrower than the head portion 44a, and a retaining jaw portion 44c between the head portion 44a and the neck portion 44b. Accordingly, the head portion 44 a is formed so that the shaft diameter H is approximately the same as the diameter of the bearing hole 35 so that the shaft diameter H can be fitted into the bearing hole 35 of the support 30. The retaining jaw 44c protrudes in a bowl shape with a gradient k that becomes thinner toward the outer edge on the outer periphery of the tip 44 between the head 44a and the neck 44b.

  As shown in FIG. 5, the shaft tube 39 includes a resin tube tube body 41 and a metal mounting plate 42. The shaft cylinder main body 41 includes a bottomed cylindrical portion 41a having an opening 43 at the upper end and a slightly elongated and shallow case portion 41b extending in a transverse direction perpendicular to the upper end of the cylindrical portion 41a. The mounting plate 42 is a metal plate that is slightly elongated and has a plurality of screw insertion holes on one end side thereof in accordance with the upper end surface of the opening door D. A round hole 46 is provided correspondingly, and a positioning hole 47 and a notch 48 are provided around the round hole 46. The case portion 41b of the shaft cylinder main body 41 is provided with a plurality of screw insertion holes on one end side corresponding to the mounting plate 42, and a plurality of positioning holes around an opening 43 opened on the other end side having an arcuate outer peripheral edge. The protrusions 51 are convex.

  Therefore, the pivot attachment 40 is fitted with the urging spring 55 in the cylindrical portion 41a of the shaft tube 39 with the lower end of the coil being hooked on the spring hook. On the other hand, a retaining ring 52 and a washer 53 are wound around the upper pivot shaft 45 in an annular narrow groove 45b provided on the outer periphery of the base end of the cylindrical portion 45a. Next, the base end of the cylindrical portion 45 a is inserted from the opening 43 and the upper pivot shaft 45 is fitted into the cylindrical portion 41 a of the shaft tube 39, and then the positioning projection 51 around the opening 43 is formed with the positioning hole 47 and the notch 48. The mounting plate 42 is fitted into the case portion 41 b of the shaft cylinder main body 41. Then, the resin cylindrical bearing tube 25 having the shaft insertion hole 54 formed in the round hole 46 of the mounting plate 42 in accordance with the cylindrical portion 45 a of the upper pivot shaft 45 is fitted. Accordingly, the pivot attachment 40 elastically urges the upper pivot shaft 45 by the urging spring 55, and the tip 44 protrudes from the shaft insertion hole 54 of the shaft tube 39 as shown in FIGS. 7 and 8. It is assembled by holding it so that it can move forward and backward.

  The retainer 50 is formed by bending a thin metal plate into a flat cap shape having an arc shape on one side in accordance with the outer shape of the support plate portion 30b of the support 30. As shown in FIG. A locking groove 60 that locks the neck portion 44 b of the upper pivot shaft 45 is provided, and a release locking groove 65 is provided on the upper surface 50 b at a position corresponding to the locking groove 60. The locking groove 60 is formed by cutting the lower surface 50a into an elongated U-shaped groove having a width W. And the leaf | plate spring piece 59 is bent and raised in the lower surface 50a toward the upper surface 50b side at the both sides of the latching groove | channel 60. The locking groove 65 is formed with a narrow groove width W ′ on the inlet side, and further provided with a latching groove 65b that is one step wider on the back side via a tapered groove 65a. The taper groove 65a has a taper that gradually increases in diameter toward the latch groove 65b.

  As shown in FIG. 1, in the upper hanging bracket A 2, the pivot attachment 40 having the above-described structure is provided with the cylindrical portion 41 a of the shaft tube 39 in the mounting hole 70 previously drilled near the upper end surface of the opening door D. The fitting plate 42 is screwed to the upper end surface and assembled into the opening door D.

  When the opening door D is suspended from the door frame F by the shaft fishing device A, the opening door D is lifted and the upper cam 17 of the pivot attachment 12 is attached to the lower pivot shaft 15 of the support 11 of the lower suspension fitting A1. The bearing hole 17b is fitted, and the lower door bracket D1 is opened, and the door D is pivoted to the lower end of the one-sided sleeve panel 10 so as to be rotatable. Then, the head 44a of the upper pivot shaft 45 of the pivot attachment 40 is fitted into the bearing hole 35 of the support 30 of the upper suspension fitting A2, and the one-sided sleeve panel 10 is configured so that the opening door D can be rotated by the upper suspension fitting A2. Axle-fished at the top of the mouth.

  Thus, when the upper door bracket A2 is used for axial fishing of the opening door D to the upper end of the one-sided sleeve panel 10, the shaft fishing device A pushes down the head 44a of the upper pivot shaft 45 against the biasing spring 55, In order not to get in the way, once the head 44a is retracted into the cylindrical portion 41a of the shaft tube 39, and the head 44a reaches just below the bearing hole 35 of the support tool 30, the finger placed on the head 44a is removed. The upper pivot shaft 45 automatically protrudes by the urging force of the urging spring 55 and engages with the bearing hole 35 of the support tool 30 while making a clicking sound indicating a successful engagement. Thereafter, the retainer 50 is mounted on the support plate 30b so that the support plate 30b of the support 30 is inserted between the lower surface 50a and the upper surface 50b, and the upper portion of the retaining groove 50 on the lower surface 50a of the retainer 50 is placed above. The neck portion 44b of the pivot shaft 45 is locked, and the retaining jaw portion 44c is sandwiched between the lower surface 50a of the retaining device 50 and the support plate portion 30b of the supporting device 30, and the upper pivot shaft 45 is retained. At the same time, on the upper surface 50b of the stopper 50, the inlet side of the stopper groove 65 is pushed open by hitting the stopper 33 of the support plate 30b, the stopper 33 is engaged with the stopper groove 65b, and the stopper groove 65a is released. The stopper 45 is prevented from coming off and attached to the support plate 30b of the support 30. Accordingly, the upper suspension fitting A2 engages the stopper portion 33 of the support tool 30 with the locking groove 65 of the upper surface 50b to prevent the locking tool 50 from coming off, and the upper pivot shaft is inserted into the locking groove 60 of the lower surface 50a. The upper pivot shaft 45 is prevented from coming off by engaging the neck portion 44 b of 45, and is pivotally attached to the support 30 by the pivot attachment 40.

  Therefore, in the upper suspension fitting A2, the head portion 44a is fitted in the bearing hole 35 of the support tool 30, while the neck portion 44b is locked in the locking groove 60 on the lower surface 50a of the retainer 50, and the upper pivot shaft 45 is engaged. In order to pivotally attach to the support member 30 in the retaining state, the retaining groove 60 is engaged only with the neck portion 44b, not the head portion 44a of the upper pivot shaft 45, when the retaining member 50 is mounted on the support plate portion 30b. As shown, the shaft diameter H of the head portion 44a of the upper pivot shaft 45, the shaft diameter of the neck portion 44b is N, and the groove width W of the locking groove 60 of the stopper 50 is H> W ≧ N. It is configured as follows.

  Furthermore, in the upper suspension fitting A2, when the retaining member 50 is mounted on the support plate 30b, the neck 44b of the upper pivot shaft 45 is not provided with the locking groove 65 on the upper surface 50b but the locking groove 60 on the lower surface 50a. When the groove width on the inlet side of the retaining groove 65 of the retaining member 50 is W ′ so as to engage, the shaft diameter N of the neck 44b of the upper pivot shaft 45 is such that W ′ <N. It is configured.

  Accordingly, in the upper suspension metal fitting A2 having the above-described configuration, when the opening door D is suspended, only a part of the head 44a is fitted into the bearing hole 35 of the support tool 30 as shown in FIG. Even if the retaining member 50 is to be mounted on the support plate 30b of the support member 30 even though the fitting is incomplete, the groove width W of the locking groove 60 of the retaining member 50 is the same as the head of the upper pivot shaft 45. Since the shaft diameter H of the portion 44a and the shaft diameter N of the neck portion 44b are in a relationship of H> W ≧ N and are at least smaller than the head 44a of the upper pivot shaft 45, the head 44a is engaged with the locking groove 60. Therefore, the operator can notice that the upper pivot shaft 45 is not properly fitted into the bearing hole 35 of the support tool 30, and as a result, the upper pivot shaft 45 and the upper pivot shaft 45 can The fitting of the bearing hole 35 of the support tool 30 is released and the door is opened. There can be prevented occurrence of a problem such as falling from the door frame F in advance.

  By the way, when the groove width w ′ of the locking groove 6b on the upper surface of the retainer 6 is large enough to engage the neck 1b of the upper pivot shaft p, as in the conventional upper hanging metal fitting shown in FIG. When the opening door d is suspended, in order to prevent the upper pivot shaft p from coming off after the head 1a is fitted into the bearing hole 5 of the support b, the retainer 6 is attached to the support plate portion 4b of the support b. If the lower surface with the locking groove 6a and the upper surface with the locking groove 6b are erroneously mounted in the reverse direction, the neck 1b of the upper pivot shaft p can be engaged with the locking groove 6b. The operator supports the support tool b in a state of being prevented from coming off with the pair of latching protrusions 7 held by the stoppers 8 on the support plate part 4b. As a result, the door d is not noticed that it is not attached to the plate portion 4b. With or vibration in hammer, the mounting mistakes due sometimes stop 6 missing deviates from the support plate portion 4b of the support b.

  However, the upper suspension fitting A2 of the present invention is configured such that when the opening door D is suspended, the head 44a is fitted into the bearing hole 35 of the support 30 and the retaining member 50 is attached to the support plate 30b of the support 30. Even when the lower surface 50a and the upper surface 50b are mistakenly mounted in the reverse direction when the upper pivot shaft 45 is attached to prevent the upper pivot shaft 45 from coming off, the neck portion 44b of the upper pivot shaft 45 has an anti-slip groove 65 on the upper surface 50b. The groove width W ′ on the inlet side of the locking groove 65 provided on the upper surface 50b of the retainer 50 is smaller than the shaft diameter N of the neck portion 44b of the upper pivot shaft 45 so that the locking groove 60 of the lower surface 50a is engaged. Since the neck portion 44b cannot be engaged with the locking groove 65 because it is small, the operator can support the supporting plate in a locking state in which the stopper 50 on the supporting plate portion 4b is engaged with the locking groove 50 with the locking member 50. Attached to the part 30b As a result, if the opening door D vibrates due to an impact, it is possible to prevent the retainer 50 from being detached from the support plate 30b of the support 30 due to this mounting error. be able to.

A Axle fishing device A1 Lower suspension bracket A2 Upper suspension bracket D Opening door F Door frame 15 Lower pivot shaft 30 Support tool 30a Mounting plate portion 30b Support plate portion 33 Stopper portion 35 Bearing hole 39 Shaft tube 40 Pivoting tool 44 Upper pivot shaft Tip 44a head 44b neck 44c retaining jaw 45 upper pivot shaft 50 retaining tool 60 retaining groove 65 retaining groove

In view of this, the invention described in claim 1 is, for example, as shown in the embodiment shown below, with the pivot shafts 15 and 45 provided in the upper and lower hinge portions serving as pivots, and the door D can be pivoted. An upper pivot shaft A2 that constitutes the upper hinge portion of the fishing shaft A for fishing, and that has a retaining jaw portion 44c projecting from the outer periphery between the head portion 44a and the neck portion 44b of the tip 44. 45. A pivoting tool 40 on the side of the opening door, which is inserted in a shaft cylinder 39 embedded in the upper end of the opening door D so as to be able to move forward and backward, and is gripped in a state in which the tip 44 protrudes. 40 and a support tool 30 fixed to the corresponding door frame F. When the head 44a is fitted into a bearing hole 35 provided in the support tool 30 and the door D is axially fished to the door frame F. The retaining groove 50 is provided in the retaining member 50 by attaching the retaining member 50 to the support member 30. In the upper suspension bracket A2 of the shaft fishing device A, the neck portion 44b is locked to 0, and the retaining jaw portion 44c is sandwiched between the support member 30 and the retaining member 50 to retain the upper pivot shaft 45. the stopper 50 exit has a shaft diameter of the head portion 44a of the upper pivot shaft 45 H, the shaft diameter of the neck N, the groove width of the locking groove 60 of the retaining member 50 when is W, the engaging groove 60, is characterized by being formed to have a constant H> W ≧ N deep side the groove width locking the neck portion 44b from the inlet.

Claims (2)

An upper suspension metal fitting that constitutes the upper hinge part of the shaft fishing device that pivotally opens the door frame with the pivot shaft provided in the upper and lower hinge parts as a fulcrum so that the door can be pivoted. The upper pivot shaft with the retaining jaw protruding from the outer periphery of the door is elastically urged and inserted into the shaft cylinder embedded in the upper end of the opening door so that it can be moved forwards and backwards. It comprises a door-side pivot attachment and a support fixture fixed to the door frame corresponding to the pivot attachment, and the head is fitted into a bearing hole provided in the support fixture to open the door to the door frame. When fishing on a shaft, a stopper is attached to the support, the neck is locked in a locking groove provided in the stopper, and the stopper jaw is placed between the support and the stopper. In the upper hanging bracket of the shaft fishing device that prevents the upper pivot shaft from being sandwiched,
When the shaft diameter of the head of the upper pivot shaft is H, the shaft diameter of the neck is N, and the groove width of the locking groove of the retaining member is W, H> W ≧ N. , A hanging bracket on the shaft fishing device.   The support is formed in an L shape by a mounting plate portion fixed to the door frame and a support plate portion having the bearing hole formed at the tip, and the top surface of the support plate portion is moved from the tip side to the mounting plate portion side. A stopper portion that gradually increases in width is formed in a convex manner, while the stopper is formed in a flat cap shape according to the outer shape of the support plate portion of the support, and the neck portion of the upper pivot shaft is formed on the lower surface. While the locking groove for locking is provided, a locking groove that engages with the stopper portion when mounted on the support plate portion is provided at a position corresponding to the locking groove on the upper surface. 2. The upper suspension bracket of the shaft fishing device according to claim 1, wherein a groove width W ′ on the inlet side is made smaller than a shaft diameter N of a neck portion of the upper pivot shaft.

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