JP2010077708A - Hinge with damper - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hinge with a damper which is not voluminous as a whole and can reduce the manufacturing cost. <P>SOLUTION: A pivoting pin is fixed to either one of a fixed-side hinge member or a rotary-side hinge member, and a damper housing is formed on the other one at a right angle to the pivoting pin. A disc spring laminated body is housed in the damper housing. A plurality of seating faces parallel to a longitudinal center line are formed on a peripheral side face of the pivoting pin. A pressing block is housed in the base end part of the damper housing, and an adjusting block is housed in the front end part of the damper housing. The base end face of the pressing block is brought into contact with one of the seating faces of the pivoting pin, and the top end face of the pressing block is brought into contact with the disc spring of the lowermost layer of the disc spring laminated body. The base end face of the adjusting block is brought into contact with the disc spring of the uppermost layer of the disc spring laminated body. The outer peripheral screw part of the adjusting block is threadingly fitted to the inner peripheral screw part of the damper housing, and the compression load of the disc spring laminated body is adjusted through a threading movement of the adjusting block. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

The present invention relates to a hinge for rotatably mounting a rotating wing body such as a door to a fixed frame body such as a case, and controls the opening / closing operation of the rotating wing body and can hold the rotating wing body at a required opening / closing position. The present invention relates to a hinge with a damper having a built-in function.

This type of hinge with damper includes a hinge composed of first and second hinge members pivotally connected to each other, and a damper for controlling opening and closing of the first and second hinge members. Includes a first arm having one end pivotally supported by the first hinge portion, a second arm having one end pivotally supported by the second hinge member, and the first and second arms. It consists of a damper body provided between the other ends, and this damper body generates a damper force by the relative rotation of the first and second arms (see Patent Document 1).

However, in the hinge with a damper of Patent Document 1, since the hinge portion and the damper portion are configured as separate units, the bulk of the hinge with the damper is large as a whole, and it is difficult to apply to an object having no room for mounting space. There is a problem.

The damper body is composed of a fixed part and a movable part. The rotating shaft of the movable part is arranged in the cylindrical case of the fixed part, and the resistance piece fixed to the rotating shaft is spread like a blade around the fixed axis. In order to prevent viscous fluid from flowing out of the cylindrical case even after repeated use of a hinge with a damper, the damper body must be accurately sealed. Production costs have increased as it has to be finished.

Republished WO2005-095742

The problem of the present invention is that the entire bulk is small, so that it can be easily used for an object having a small installation space, and does not include a structure requiring a precise processing finish such as a viscous fluid sealing structure. Accordingly, it is an object of the present invention to provide a hinge with a damper that can easily reduce production costs.

A hinge with a damper according to the present invention includes a fixed-side hinge member fixed to a fixed frame body, a rotating-side hinge member fixed to a rotating wing body, and the rotating-side hinge member rotatably connected to the fixed-side hinge member. A pivot pin that
The pivot pin is fixed to one of the fixed-side hinge member and the rotary-side hinge member, a damper housing is formed on the other of the fixed-side hinge member and the rotary-side hinge member, and a longitudinal center line of the damper housing Is disposed at right angles to the longitudinal center line of the pivot pin, the disc spring laminated body is accommodated along the longitudinal center line of the damper housing, and the length of the pivot pin is arranged on the peripheral side surface of the pivot pin. Forming a plurality of seating surfaces arranged parallel to the center line in the longitudinal direction, setting an angular interval between the seating surfaces corresponding to the closed position and the open position of the rotating wing body;
A presser block is housed in the base end portion of the damper housing so as to be slidable in the length direction, the base end surface of the presser block is brought into contact with the seating surface of the pivot pin, and the top end surface of the presser block is placed on the plate. An adjustment block is accommodated in the front end portion of the damper housing so as to be slidable in the length direction, and is brought into contact with a lowermost disc spring of the spring laminated body, and a base end surface of the adjustment block is set as an uppermost layer of the disc spring laminated body Abutting against the disc spring,
The outer peripheral screw portion of the adjustment block is screwed into the inner peripheral screw portion of the damper housing, and the compression load of the disc spring laminated body between the adjustment block and the presser block is adjusted by the screw motion of the adjustment block. It is a thing.

In the hinge with a damper according to the present invention, the damper force is given by the disc spring laminated body that is compressed between the adjusting block and the presser block, and the adjusting block, the presser block, and the disc spring laminated body are stored in a straight line. The damper housing is formed on either the fixed-side hinge member or the rotary-side hinge member, and the pivot pin that forms the seating surface with which the base end surface of the presser block abuts is attached to the other of the fixed-side hinge member or the rotary-side hinge member. Since it is fixed, the bulkiness of the entire hinge with damper is greatly reduced. With this compact configuration, it can be used without any inconvenience even in a target portion where there is no room for installation space, and the use target is widened.

Further, as described above, the damper force is given by the disc spring laminate that is compressed and loaded between the adjustment block and the presser block, and the compression load of the disc spring laminate is adjusted by the screw motion of the adjustment block. This eliminates the need for a viscous fluid sealing structure that requires careful processing and finishing, thus greatly reducing production costs.

In the illustrated embodiment, the fixed-side hinge member 1 is formed with a thick pivot pin fixing portion 4 that receives the proximal end angular shaft portion 3 of the pivot pin 2 at a right angle, and is fixed to the ear portions 5 on both sides thereof. A fixing hole 7 to the frame 6 is formed. The fixed-side hinge member 1 is fixed to the fixed frame 6 by bolts 9 and nuts 10 that pass through the fixing holes 8. In this embodiment, the fixed frame 6 is the body of a cargo truck, and the rotating wing body 11 is a step that enters and exits from the side of the vehicle body, and a driver or a worker puts his / her feet on this step.

The main portion of the pivot pin 2 is rotatably inserted into the shaft hole 37 of the proximal end tubular portion 39 of the rotation side hinge member 22. Three seating surfaces 13, 14, 15 are formed on the peripheral surface of the main portion of the pivot pin 2 in parallel to the longitudinal center line of the pivot pin 2 at intervals of 90 degrees. When the rotary wing body 11 is in the closed position, the base end surface 17 of the presser block 16 is pressed against the central seating surface 14, and the seating surfaces 13 and 15 on both sides of the presser block 16 are in contact with the rotary wing body according to the use mode. When 11 comes to the open position, the base end face 18 of the presser block 16 comes into pressure contact.

The base end surface 17 of the presser block is formed at a right angle to the longitudinal center line of the presser block 16, and comes into contact with the seating surfaces 13, 14, 15 of the pivot pin 2. The top end surface 18 of the presser block 16 is formed at a right angle to the longitudinal center line of the presser block 16 and is in contact with the disc spring of the lowermost layer of the disc spring laminated body 25 in direct contact.
An annular groove 20 for accommodating the O-ring 19 is formed outside the peripheral surface portion of the pivot pin 2 where the seating surfaces 13, 14, 15 are formed.

The damper housing 21 having a cross-sectional shape is integrally formed to project at the center of one surface of the flat-plate-like rotation-side hinge member 22, and intersects with the proximal end tubular portion 39 of the rotation-side hinge member 22. The damper housing 21 is formed with a cavity 23 that is disposed at a right angle to the longitudinal center line of the pivot pin 2.
The rotation-side hinge member 21 and the damper housing 22 are accommodated in a mounting recess 40 provided at an appropriate position of the rotation wing body 11, and the main portion of the rotation-side hinge member 21 is a fixing hole 36 provided on both sides of the damper housing 21. It is fixed to the rotary wing body 11 by a fixing tool (not shown) passing through. The proximal end tubular portion 39 of the rotation-side hinge member 22 is fitted into the positioning hole 12 of the rib plate portion 38 of the rotating wing body 11.

The presser block 16, the adjustment unit block 24, and the disc spring laminated body 25 are accommodated along the longitudinal center line of the cavity portion 23.
The outer shape of the columnar presser block 16 is set close to the inner diameter of the cavity 23, and the presser block 16 slides along the cavity 23 in the axial direction.

On the outer peripheral surface of the columnar adjustment block 24, an outer peripheral screw portion 26 is formed over the entire length. The length of the inner peripheral screw portion 27 formed on the distal end side of the cavity portion 23 is set to be longer than the length of the adjustment block 24, and the difference in this length becomes the adjustment allowance of the adjustment block 24. The uppermost disc spring of the disc spring laminate 25 abuts on the base end face 28 of the adjustment block 24. The base end face 28 is formed at a right angle to the longitudinal center line of the adjustment block 24, and comes into contact with the disc spring laminated body 25 in a face-to-face relationship.
A hexagonal recess 30 for inserting a rotary operation tool is formed at the center of the top end surface 29 of the adjustment block 24.

A set screw 32 is screwed into the end surface screw hole 31 of the rotation-side hinge member 22, and the head of the set screw 32 engages with the edge portion of the top end surface 29 of the adjustment block 24. The disc spring of the disc spring laminated body 25 is made of steel and receives a large load with a very small deflection. The application of the deflection of the disc spring is performed by tightening the adjustment block 24, and a damper force against the rotating wing body 11 is obtained by an elastic repulsive force obtained as a sum of the deflection amounts of the disc springs.

FIG. 6 is a cross-sectional view showing an attached state of the damper-equipped hinge. The rotary wing body 11 is in a closed position in the storage portion 33 provided in the fixed frame body 6, and the damper housing 21 is in a state of standing from the pivot pin 2. As shown in FIGS. 5 and 6, the base end surface 17 of the presser block 16 is in contact with the seating surface 14 in the middle of the pivot pin 2. The rotating wing body 11 is stably held in the closed position by a damper force due to the bending deformation of the disc spring laminated body 25.

The base end surface 17 of the presser block 16 away from the seating surface 14 of the pivot pin 2 when the rotating wing body 11 is pulled out from the storage portion 33 to the open position by giving a force to overcome the damper force is shown in FIG. Thus, the rotating wing body 11 abuts against another seating surface 15 spaced 90 degrees apart, and is stably held at the open position by the damper force due to the bending deformation of the disc spring laminated body 25. In order to smoothly change the contact surface from the seating surface 14 to the seating surface 15 or from the seating surface 14 to the seating surface 13, between the seating surface 13 and the seating surface 14 and the seating surface 14. Curved surface portions 34 and 35 are formed between the seating surfaces 15.

It is a front view of a hinge with a damper in one example of the present invention. It is a top view of the damper hinge of FIG. It is a left view of the damper hinge of FIG. It is the sectional view on the AA line of FIG. It is the BB sectional view taken on the line of FIG. FIG. 5 is a cross-sectional view corresponding to FIG. 4 in a mounted state of the hinge with a damper in FIG. FIG. 6 is a cross-sectional view corresponding to FIG. 5 in a mounted state of the damper-equipped hinge of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Fixed side hinge member 2 Pivot pin 3 Base end angle shaft part 4 of fixed axis pin Pivot pin fixed part 5 of fixed side hinge member Ear part 6 of fixed side hinge member Fixed frame body 7 Fixing hole 8 of fixed side hinge member Fixed frame Fixing hole 9 Bolt 10 Nut 11 Rotating wing body 12 Positioning hole 13 on the rotating wing body side Seating surface 14 Seating surface 15 Seating surface 16 Presser block 17 Presser block base end surface 18 Presser block top end surface 19 O-ring 20 O- Ring housing ring groove 21 Damper housing 22 Rotating hinge member 23 Damper housing cavity 24 Adjustment section block 25 Belleville spring stack 26 Adjustment block outer peripheral thread section 27 Hollow section inner peripheral thread section 28 Adjustment block base end face 29 Top end face 30 of the adjustment block Recessed part 31 for inserting the tool for rotation operation End face screw hole 32 of the rotation side hinge member Set screw 3 The storage portion 34 on the fixed frame body side The curved surface portion 35 The curved surface portion 36 The fixing hole 37 of the rotation side hinge member The shaft hole 38 of the rotation side hinge member The rib plate portion 39 of the rotation side wing member The proximal end tubular portion 40 of the rotation side hinge member The rotation side hinge Recess for mounting parts

Claims (1)

A fixed-side hinge member fixed to the fixed frame body, a rotation-side hinge member fixed to the rotating wing body, and a pivot pin that rotatably connects the rotation-side hinge member to the fixed-side hinge member;
The pivot pin is fixed to one of the fixed-side hinge member and the rotary-side hinge member, a damper housing is formed on the other of the fixed-side hinge member and the rotary-side hinge member, and a longitudinal center line of the damper housing Is disposed at right angles to the longitudinal center line of the pivot pin, the disc spring laminated body is accommodated along the longitudinal center line of the damper housing, and the length of the pivot pin is arranged on the peripheral side surface of the pivot pin. Forming a plurality of seating surfaces arranged parallel to the center line in the longitudinal direction, setting an angular interval between the seating surfaces corresponding to the closed position and the open position of the rotating wing body;
A presser block is housed in the base end portion of the damper housing so as to be slidable in the length direction, the base end surface of the presser block is brought into contact with the seating surface of the pivot pin, and the top end surface of the presser block is placed on the plate. An adjustment block is accommodated in the front end portion of the damper housing so as to be slidable in the length direction, and is brought into contact with a lowermost disc spring of the spring laminated body, and a base end surface of the adjustment block is set as an uppermost layer of the disc spring laminated body Abutting against the disc spring,
The outer peripheral screw portion of the adjustment block is screwed into the inner peripheral screw portion of the damper housing, and the compression load of the disc spring laminated body between the adjustment block and the presser block is adjusted by the screw motion of the adjustment block. A hinge with a damper.

Images