JP4995936B2 - Axle fishing device top bracket - Google Patents

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 suspended in the section (see Patent Document 1).

  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.

  In order to solve such problems, the applicant has proposed a pivot hinge type shaft fishing device in which an upper suspension fitting constituting the upper hinge portion is improved (see Patent Document 2). As shown in FIGS. 10 and 11, this conventional shaft fishing device top-hanging metal fitting has a pivot shaft 2 fitted into a damper 1 embedded in an upper end portion of an opening door d, and a tip shaft portion 2 a of the pivot shaft 2 is attached. A pivoting tool a projecting from the opening door d, an L-shaped angle material support 4 having an arm part 4a projecting sideways when fixed to the upper side of the vertical frame part 3a of the door frame f, and a center A gear-shaped cylindrical adjustment cam 5 having a positioning hole 5a in which the distal end shaft portion 2a of the pivot shaft 2 is non-rotatably fitted, and the adjustment cam 5 is slidably inserted vertically at one end side. An adjustment hole 6a is formed in a hole shape that matches the outer shape of the adjustment cam 5, and a joint 6 having an engagement portion 6b that engages with the arm portion 4a of the support 4 on the other end side is provided. Then, when suspended, the tip shaft portion 2a of the pivot shaft 2 is fitted into the positioning hole 5a of the adjustment cam 5, and the arm of the support 4 on the door frame side is engaged with the engaging portion 6b of the joint 6 on the pivot attachment side. The portion 4a is engaged sideways along the upper frame portion of the door frame f, and the open door d is axially fishing to the door frame f even if there is almost no gap between the open door d and the upper frame portion. It can be done. Further, since the adjustment cam 5 is fitted in the adjustment hole 6a of the joint 6 so as to be slidable in the vertical direction, for example, when the opening door d is suspended from the door frame f while adjusting the height of the installation. However, according to the fine adjustment height of the installation position, the adjustment cam 5 slides up and down through the adjustment hole 6a with respect to the joint 6 fixed to the door frame side, so that the installation height position of the opening door d It is possible to follow the fine adjustment operation.

Japanese Utility Model Publication No. 61-137766 JP 2008-127740 A

  However, the upper suspension bracket of the conventional shaft fishing device often has an error in the height of the opening door d suspended from the door frame f. When the door d vibrates due to an impact, the adjustment cam 5 and the joint 6 are displaced to disengage from each other. As a result, the pivot shaft 2 is detached from the support 4, and as a result, the opening door d becomes the door. There was a problem of falling off the frame f. Further, since the number of assembly parts is increased by the number of the adjustment cam 5 and the joint 6, there is a problem that the shaft fishing structure becomes complicated and the hanging work becomes troublesome.

  Accordingly, an object of the present invention is to securely and easily pivot the pivot shaft without detaching from the bearing hole of the support on the door frame side when the opening door is suspended, and to reduce the number of parts and simplify the structure. An object of the present invention is to provide a top hanging bracket for a shaft fishing device.

Therefore, the upper hanging bracket of the shaft fishing device according to the first aspect of the invention opens to the door frame F with the pivot shaft 55 provided in the upper and lower hinges as a fulcrum, as shown in the embodiment shown below, for example. In the shaft fishing device A that pivots the shaft pivotably, the upper hanger H2 that constitutes the upper hinge portion, the pivot attachment 30 that is assembled to the opening door side and pivotally attaches the pivot shaft 55; The pivoting tool 30 is fixed to the corresponding door frame side and includes a support tool 20 having a bearing hole 25 into which the pivot shaft 55 is fitted when the opening door D is suspended. When the opening door D rotates in the closing direction, a braking force is applied to decelerate the opening door D, and the pivot shaft 55 is moved in a state where the tip end shaft portion 55a protrudes from the head portion 31a by a certain length. The inserted damper 35 and the damper 35 are inserted into the guide hole 4. A damper case 40 which is movably fitted in the depth direction X up and down and fixed to the upper end of the opening door D, and the damper 35 is always urged upward in the depth direction X of the guide hole 44 of the damper case 40. The damper 35 includes a damper main body 31 into which the pivot shaft 55 is inserted, and a pressing operation tool 32 that is provided on the head portion 31a of the damper main body 31 so as to be freely pressed down. On the pressing operation tool 32, a pressing button portion 32b is projected outwardly from the damper main body 31, and the pressing button portion 32b is held at a height position protruding from the upper opening 44a of the guide hole 44, while being held. The pivot shaft 55 is held by the damper case 40 so as to be able to be pushed down against the biasing spring 45.

According to a second aspect of the present invention, in the upper suspension bracket of the shaft fishing device according to the first aspect, for example, as in the illustrated embodiment shown below, the pivot attachment 30 has a head 31 a of the damper 35. Stopper means 50 for restricting a movable range in which the damper 35 moves up and down in the depth direction X of the guide hole 44 is provided at a height position protruding from the upper opening 44 a of the guide hole 44 and a retracted height position. It is characterized by becoming.

According to a third aspect of the present invention, in the upper hanging bracket of the shaft fishing device according to the first or second aspect, for example, as in the illustrated embodiment shown below, the pivot attachment 30 is configured to connect the damper 35 to the damper 35. A detachment preventing means 60 is provided which is fixed to the case 40 and locks the fitting between the distal end shaft portion 55a of the pivot shaft 55 and the bearing hole 25 of the support tool 20.

  According to the first aspect of the present invention, when the upper door is pivoted to the upper side of the door frame with the upper suspension fitting, the pivot shaft can be pushed down in the depth direction of the guide hole of the damper case together with the damper, Since the damper is at the height where the head protrudes from the guide hole, if the pivot shaft is pushed down together with the damper and the tip shaft is once retracted into the guide hole, and the finger on the damper is removed, the biasing spring The pivot shaft automatically protrudes together with the damper by the urging force, and the tip shaft part fits into the bearing hole of the support, so the installation location of the opening door is almost between the opening door and the upper frame part. Even if there is no gap, there is no obstacle, and the pivot shaft is pivotally attached to the bearing hole of the support on the door frame side without trouble, and the door is pivoted to the upper side of the door frame. be able to.

  In addition, according to the first aspect of the present invention, the pivot shaft is always spring-biased in the depth direction of the guide hole of the damper case together with the damper, so that the tip shaft portion is fitted in the bearing hole of the support tool. Even after the open door is pivoted, the damper is urged upward by the urging spring to hold the damper against the height of the head protruding from the guide hole. Even if there is an error in the height of hanging the door or the door may vibrate due to impact, the pivot shaft will not move out of the bearing hole of the support and the fitting will not come off. Can be securely pivoted to the bearing hole of the support.

  In addition, according to the first aspect of the present invention, the pivot shaft is configured to be fitted and pivoted directly into the bearing hole of the support member without using an adjustment cam or a joint as in the prior art. Therefore, the number of assembly parts can be reduced, the shaft fishing structure can be simplified, and the time and labor of the hanging work can be reduced.

Furthermore, according to the first aspect of the present invention, the damper can be pushed down integrally with the pivot shaft by simply placing the finger on the push-down button portion of the push-down operation tool and pushing it down, and the damper can be pushed down easily and accordingly. It can be done reliably.

According to the second aspect of the present invention, the movable range in which the damper moves up and down in the depth direction of the guide hole is at the height position where the head of the damper protrudes from the upper opening of the guide hole and the height position where the head is retracted. By regulating with the stopper means, the damper can be reliably positioned and held within a predetermined movable range.

  According to the third aspect of the present invention, when the opening door is suspended, the tip shaft portion of the pivot shaft is protruded by the urging spring and fitted into the bearing hole of the support tool, and then the damper is used by using the retaining means. Is fixed to the damper case, and the fitting between the tip shaft portion of the pivot shaft and the bearing hole of the support tool is locked, thereby suppressing the spring biasing force of the bias spring, and the tip shaft portion of the pivot shaft is supported by the support tool. Can be reliably prevented from coming off from the bearing hole.

It is a partial expansion perspective view which shows the state which hangs an opening door on a door frame with the upper suspension metal fittings which concern on this invention. It is a longitudinal cross-sectional view which shows the upper suspension metal fitting of a shaft fishing apparatus in the state of hanging the door. It is a disassembled perspective view which shows an upper suspension metal fitting. It is an assembly perspective view which shows the damper by the side of a pivot attachment. (A) The assembly perspective view of the upper suspension metal fitting shown in the protrusion state of a damper, (B) The assembly perspective view of the upper suspension metal fitting shown in the retracted state of a damper. It is a front view of the surroundings of a door which shows the middle of hanging an opening door on a door frame with a shaft fishing device. It is a perspective view of the surroundings of a door which shows the middle of hanging an opening door on a door frame with a shaft fishing device. 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. It is a disassembled perspective view which shows the upper suspension metal fitting of the conventional shaft fishing apparatus. It is a longitudinal cross-sectional view which shows the upper suspension metal fitting of the conventional shaft fishing apparatus in an assembly state.

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

  8 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. 9 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 illustrated shaft fishing apparatus A is composed of a lower suspension fitting H1 as a lower hinge portion and an upper suspension fitting H2 according to the present invention as an upper hinge portion, and the lower portion of the opening door D and the door frame F is attached to the lower suspension fitting. At H1, the upper side is pivoted with the upper suspension fitting H2, and the opening door D is suspended from the door frame F so as to be opened and closed at a predetermined installation position.

  The lower suspension metal fitting H1 of the shaft fishing device A has a support 11 that is screwed to a corner portion of the vertical frame portion 10a and the lower frame portion 10b of the door frame F, and one side corner edge of the lower end of the opening door D. It consists of a pivot attachment 12 to be screwed. The support 11 is an angle member that is bent into an L shape and includes a horizontal plate portion 11a and a vertical plate portion 11b. The horizontal plate portion 11a is provided with a non-rotating bearing hole 13 (see FIG. 7). On the other hand, the pivot attachment 12 has a pivot shaft 15 having a distal end shaft portion 15a having the same non-rotating shape as the hole shape of the bearing hole 13 inserted in a shaft cylinder embedded in the lower end of the opening door D, and the distal end shaft portion 15a. Is opened and protruded from the lower end surface of the door D. When the lower suspension fitting H1 is assembled by fitting the pivot shaft 15 on the pivot attachment side into the bearing hole 13 of the support 11 fixed to the door frame side, the door D can be rotated with the pivot shaft 15 as a fulcrum. It has a pivot fishing structure. Although not shown, the pivot attachment 12 has a spring hinge structure in which a torsion spring is incorporated in the shaft cylinder, and one end of the torsion spring is hooked on the pivot shaft 15 while the other end is hooked on a part of the shaft cylinder. Thus, when the opening operation of the opening door D is stopped halfway at the time of opening, the opening door D is automatically rotated in the closing direction by the spring return force of the torsion spring to return to the predetermined return position. It is assumed that a means is provided.

  Now, as shown in FIGS. 1 and 2, the upper suspension metal fitting H <b> 2 of the present invention includes a support tool 20 assembled on the door frame F side and a pivot attachment 30 assembled on the opening door D side.

  The support 20 is an angle member composed of a vertical plate portion 20a and a horizontal plate portion 20b which are bent into an L shape and have a plurality of screw holes, and is provided with a bearing hole 25 having a non-rotating shape in the horizontal plate portion 20b. The bearing hole 25 is a long hole that is long along the longitudinal direction of the horizontal plate portion 20b. The support 20 is configured such that the vertical plate portion 20a is screwed to the top end of the vertical frame portion 10a of the door frame F, and the horizontal plate portion 20b is projected horizontally horizontally along the ceiling-side upper frame portion 10c of the door frame F. To do.

  As shown in FIG. 3, the pivot attachment 30 includes a damper 35 as a braking means, a damper case 40 that holds the damper 35, a biasing spring 45 as a compression coil spring that biases the damper 35, and a stopper of the damper 35. The structure includes a means 50 and a means 60 for preventing the pivot shaft 55 from coming off.

  The damper 35 includes a damper main body 31 into which the pivot shaft 55 is inserted and a pressing operation tool 32. The damper main body 31 has a pivot shaft 55 fitted in the shaft tube 33 so as to be axially rotatable, and the tip end shaft portion 55a is prevented from coming off at a position protruding from the shaft projecting port 34 opened on the upper end surface. It is installed so that it cannot move up and down. The pivot shaft 55 is formed so that the distal end shaft portion 55a corresponds to the hole shape of the bearing hole 25 of the support tool 20 and is formed in a detent shape having a pair of symmetrical circular arc surfaces and a plane t on the outer periphery. When the pivot door 55 rotates in the closing direction when the opening door D is closed, the damper main body 33 generates a braking force by the viscous resistance of the braking oil that flows in the oil chamber in the shaft tube 33, and the opening of the opening door D. It has an oil damper structure that decelerates rotation.

  The pressing operation tool 32 includes a cylindrical cap portion 32a that can be attached to the head portion 31a of the damper main body 31, and a substantially rectangular block that faces the cap portion 32a radially outward from the cap portion 32a with the cap portion 32a and the upper end surface 36 being flush with each other. And a push button 32b extending in a shape. The cap portion 32a opens one end surface on the lower side in the figure, while the distal end shaft portion 55a of the pivot shaft 55 can be inserted through the center of the other end surface in accordance with the shaft projection port 34 on the damper body 31 side. A shaft insertion port 37 is provided. The push button portion 32 b has a horizontal shaft hole 38 that penetrates in the thickness direction and a screw hole 39 that penetrates in the height direction perpendicular to the horizontal shaft hole 38. Further, as shown in FIG. 2, the push button 32b has a lower end surface 41 formed in a step shape, and a stepped spring receiving recess 42 is provided in the center in the height direction. The screw hole 39 is formed by connecting an idiot hole 39a on the inlet side and a female screw hole 39b on the back side. Accordingly, the damper 35 covers the head portion 31a of the damper main body 31 in a state where the cap portion 32a is put on the head portion 31a of the damper main body 31 and screwed, and the tip shaft portion 55a of the pivot shaft 55 projects from the shaft insertion port 37. A pressing operation tool 32 is integrally attached to 31a and assembled as shown in FIG.

  As shown in FIG. 3, the damper case 40 includes a barrel portion 40 a and a fixed plate portion 40 b that extends from the upper end of the barrel portion 40 a to the side with the end surfaces flush with each other. A guide hole 44 is formed in the barrel portion 40a in accordance with the outer shape of the damper 35. The guide hole 44 includes a cylindrical hole portion 46 into which the damper main body 31 is fitted, and a rectangular tube concave portion 47 into which the push button portion 32 b of the push operation tool 32 is fitted. The cylindrical hole portion 46 penetrates in the vertical direction in FIG. 2, and the rectangular tube hole portion 47 is shaped like a step corresponding to the push button portion 32b of the push operation tool 32, A spring-hanging projection 47a is provided at the center, and a pin receiving hole 48 is provided in a step 47b corresponding to the screw hole 39 adjacent to the spring-hanging projection 47a. The pin receiving hole 48 is a hole that, together with the screw hole 39, serves as part of the means for preventing the pivot shaft 55 from coming off. Further, as shown in FIG. 3, a restriction hole 51 penetrating in the thickness direction orthogonal to the guide hole 44 is formed in the barrel portion 40a at a position communicating with the horizontal axis hole 38 when the damper 35 is fitted. Provided. The restriction hole 51 is a long hole that serves as a part of the stopper means 50 that restricts the movable range of the damper 35. Therefore, the restriction hole 51 is retracted at a height position where the head portion 31 a of the damper 35 protrudes from the upper opening 44 a of the guide hole 44. A fixed length guide hole 44 is formed in the depth direction in the depth direction so as to correspond to the movable distance in which the damper 30 moves up and down between the height positions.

  The stopper means 50 includes a restriction hole 51 of the damper case 40, a horizontal shaft hole 38 formed in the pressing operation tool 32 of the damper 35, and a stopper pin 65 inserted through the restriction hole 51 and the horizontal shaft hole 38. To do.

  As shown in FIG. 2, the locking means 60 is screwed into the screw hole 39 formed in the pressing operation tool 32 of the damper 35, the pin receiving hole 48 recessed in the damper case 40, and the screw hole 39. The screw shaft 70 is inserted into the pin receiving hole 48.

  Therefore, as shown in FIGS. 2, 3, and 4, the pivot attachment 30 is configured such that the coil lower side of the urging spring 45 is fitted into the spring hooking convex portion 47 a of the damper case 40, and then the guide hole 44. The damper main body 31 is inserted into the cylindrical hole 46, the push button part 32 b of the push operation tool 32 is fitted into the rectangular tube recess 47, the step spring receiving recess 42 is sandwiched, and the urging spring 45 is sandwiched on the back side. In a state where the hooking convex portion 47 a is engaged, the damper 35 is movably fitted in the guide hole 44 in the depth direction X up and down and is held by the damper case 40. Next, after the horizontal axis hole 38 of the damper 35 is in communication with the restriction hole 51 of the damper case 40, the stopper pin 65 is inserted into the horizontal axis hole 38 through the restriction hole 51 to press the damper 35. Hold at 32. Then, the pivot attachment 30 has the stopper pin 65 hitting the upper hole edge of the restriction hole 51 as shown in FIG. A certain head portion 31 a is stopped at a height position protruding from the upper opening 44 a of the guide hole 44 and is gripped by the damper case 40. That is, as shown in FIG. 5B, the pivot attachment 30 is held by the damper case 40 so that the pivot shaft 55 can be pushed down together with the damper 35 at a height position where the head 31a is retracted from the upper opening 44a of the guide hole 44. And assemble.

  In the upper suspension fitting H2, the pivot attachment 30 having the above-described structure is fitted into the mounting recess 75 opened near the upper end corner of the opening door D, as shown in FIG. The fixed plate portion 40b is screwed to the upper end surface and assembled into the opening door D.

  Now, when the opening door D is suspended from the door frame F by the illustrated shaft fishing device A, as shown in FIGS. 6 and 7, the opening door D is lifted and the bearing hole 13 of the support 11 of the lower suspension fitting H1. Next, the front end shaft portion 15a of the pivot shaft 15 of the pivot attachment 12 is fitted, and the opening door D is pivoted to the lower side of the door frame F so as to be rotatable by the lower suspension fitting H1. Then, the front end shaft portion 55a of the pivot shaft 55 of the pivot fitting 30 is fitted into the bearing hole 25 of the support tool 20 of the upper suspension fitting H2, and the opening door D can be rotated by the upper suspension fitting H2. Shaft the shaft upward.

  Thus, when the open door D is axially fished to the upper side of the door frame F with the upper suspension metal fitting H2, in the axial fishing device A of the present invention, the damper 35 has the pressing operation tool 32 of the head portion 31a now in the damper case 40. Since it is at the height position protruding from the guide hole 44, for example, a finger is put on the pressing button portion 32 b of the pressing operation tool 32, and the tip shaft portion 55 a of the pivot shaft 55 is pushed down against the biasing spring 45 together with the damper 35. In order not to get in the way, once retracted into the guide hole 44, when the tip shaft portion 55a of the pivot shaft 55 reaches directly below the bearing hole 25 of the support tool 20, the finger hung from the push button portion 32b is removed. Then, the pivot shaft 55 automatically protrudes together with the damper 35 by the urging force of the urging spring 45, and the opening door D is fitted to the bearing hole 25 of the support 20 while making a clicking sound of a snapping success. A shaft on the upper side of the door frame F To. Thus, the open door D is suspended by the upper and lower suspension fittings H1 and H2 so as to be pivotable about the pivot shafts 15 and 55, as shown in FIGS.

  Therefore, in the illustrated shaft fishing device A, when the open door D is shaft-fished to the upper side of the door frame F by the upper suspension metal fitting H2, the pivot shaft 55 and the damper 35 are vertically moved in the depth direction X of the guide hole 44 of the damper case 40. In a state where the damper 35 can be pushed down, the damper 35 is at a height position where the upper side of the pressing operation tool 32 of the head 31a protrudes from the guide hole 44. 55 is pushed down together with the damper 35 so that the tip shaft portion 55a is once retracted into the guide hole 44, and if the finger is removed, the pivot shaft 55 automatically projects together with the damper 35 by the biasing force of the biasing spring 45. Since the distal end shaft portion 55a is configured to fit into the bearing hole 25 of the support tool 20, as shown in the figure, there is almost no clearance between the opening door D and the upper frame portion 10c. Even if not There is nothing to be harmful, it is possible to Jikutsuri the door D on the upper side of the door frame F to open the tip end shaft portion 55a of the pivot shaft 55 easily fitted to the bearing hole 25 of the support 20.

  Next, in the illustrated shaft fishing device A, the pivot shaft 55 is always spring-biased in the depth direction X of the guide hole 44 of the damper case 40 together with the damper 35, so that the tip shaft portion 55 a is the bearing of the support tool 20. Even after fitting the hole 25 and axially fishing the opening door D, the urging spring 45 is urged upward as it is, and the damper 35 is pressed and held at a height position where the head 31 a protrudes from the guide hole 44. Therefore, even if there is an error in the height at which the opening door is suspended with respect to the door frame F or the opening door vibrates due to an impact, the pivot shaft 55 is displaced from the bearing hole 25 of the support 20. The pivot shaft 55 can be securely pivotally attached to the bearing hole 25 of the support member 20 without moving and disengaging. Moreover, in the upper suspension fitting H2, the damper 35 can be pushed down integrally with the pivot shaft 55 by simply putting the finger on the push-down button portion 32b of the push-down operation tool 32 and pushing down the damper 35. And it can be performed reliably.

  Furthermore, in the illustrated shaft fishing device A, the pivot shaft 55 is configured to be fitted directly into the bearing hole 25 of the support 20 without using an adjustment cam or a joint and pivotally attached. The number of assembly parts can be reduced, the shaft fishing structure can be simplified, and the time and labor of the hanging work can be reduced.

  In addition, in the illustrated shaft fishing device A, when the opening door D is suspended, the distal end shaft portion 55a of the pivot shaft 55 is projected by the urging spring 45 and fitted into the bearing hole 25 of the support tool 20, and then FIG. 3 is used to fix the damper 35 to the damper case 40 and lock the fitting between the tip shaft portion 55a of the pivot shaft 55 and the bearing hole 25 of the support tool 20, thereby By suppressing the spring biasing force of the biasing spring 45, it is also possible to more reliably prevent the distal end shaft portion 55a of the pivot shaft 55 from coming off from the bearing hole 25 of the support tool 20.

  When the fitting between the distal end shaft portion 55a of the pivot shaft 55 and the bearing hole 25 of the support 20 is locked by the detachment prevention means 60, first, the opening door D is overlapped with the upper frame portion 10c of the door frame F. The screw shaft 70 of the locking means 60 is inserted from above into the screw hole 39 formed in the pressing operation tool 32, and the male screw is screwed into the female screw hole portion 39b. The distal end portion is pushed into the pin receiving hole 48 of the damper case 40, and the damper 35 is fixed to the damper case 40 to lock the fitting between the distal end shaft portion 55a of the pivot shaft 55 and the bearing hole 25 of the support tool 20. Thus, the spring urging force of the urging spring 45 is suppressed, and the pivot shaft 55 is bent up and down by the spring urging force to prevent the tip shaft portion 55a from being detached from the bearing hole 25 of the support tool 20.

  In the illustrated example described above, the damper 35 is formed by integrally attaching a separate pressing operation tool 32 to the damper main body 31, but is formed integrally with the damper main body using the pressing operation tool as a pressing operation portion. It can also be integrated by doing.

A Axle fishing device D Opening door F Door frame H1 Lower suspension bracket H2 Suspension bracket X Depth direction 15/55 Pivot shaft 15a / 55a Pivot shaft tip shaft portion 11/20 Support tool 12/30 Pivoting tool 13/25 Support Tool bearing hole 31 Damper main body 32 Pressing operation tool 32b Pressing button part 35 Damper 40 Damper case 44 Guide hole 45 Biasing spring 50 Stopper means 51 Restriction hole 60 Retaining means 65 Stopper pin 70 Screw shaft

Claims (3)

In the shaft fishing device that pivots on the pivot shaft provided in the upper and lower hinge portions as a fulcrum and opens to the door frame so that the door can be pivoted, it is an upper suspension fitting that constitutes the upper hinge portion,
A pivot attachment that is assembled to the opening door and pivotally attaches the pivot shaft, and a bearing hole that is fixed to the door frame side corresponding to the pivot attachment and engages the pivot shaft when the opening door is suspended. And a support having
The pivot attachment is
A damper in which the pivot shaft is inserted in a state in which the tip shaft portion protrudes from the head for a certain length by a braking means that decelerates the opening door by applying a braking force when the opening door rotates in the closing direction; A damper case in which the damper is movably fitted in the guide hole vertically in the depth direction and fixed to the upper end of the opening door, and the damper is always biased upward in the depth direction of the guide hole of the damper case. With a spring,
The damper includes a damper main body into which the pivot shaft is inserted, and a pressing operation tool provided so as to be able to be pushed down integrally with the head of the damper main body. The push button is held at a height position protruding from the upper opening of the guide hole, and held by the damper case so that it can be pushed down against the biasing spring together with the pivot shaft. An upper suspension metal fitting for a shaft fishing device, characterized by comprising: The pivot attachment restricts a movable range in which the damper moves up and down in the depth direction of the guide hole at a height position where the head of the damper protrudes from an upper opening of the guide hole and a height position where the head is retracted. The upper suspension bracket of the shaft fishing device according to claim 1, further comprising stopper means for performing the operation. The pivot attachment is provided with a detachment prevention means for fixing the damper to the damper case and locking the fitting between the tip shaft portion of the pivot shaft and the bearing hole of the support, The upper hanging metal fitting of the shaft fishing apparatus according to claim 1 or 2 .

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