JPS63308174A - Hinge - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] 【Technical field】

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinge, particularly a hinge for opening and closing a heavy doorway.

[Background technology]

When opening and closing a lid attached to a hinge, a large amount of operating force is required when the lid is heavy, such as the lid of a reaction vessel.In order to reduce the force required for opening and closing, a weight balancer is attached to the lid. A spring attached to the lid or built into the hinge is used to bias the lid in the opening direction. However, the former requires space for the weight balancer to move, and also increases the mass of the lid as a whole, which requires increasing the strength of the hinge that attaches the lid. ing. The latter does not have the same problems as weight balancers, but with conventional products of this type, the spring must be assembled into the hinge in a compressed state, which is difficult to assemble. It is also difficult to balance the spring force with the weight of the lid, and the normal clearance at the hinge is biased in one direction by the spring having a strong enough force to counteract the heavy lid. In the case of a reaction vessel that needs to be completely sealed with a lid, it has sometimes been difficult to close the lid properly.

[Purpose of the invention]

The present invention has been made in view of these points, and its purpose is not only to make it possible to easily open and close even heavy objects, but also to assemble, set the spring force, and securely close the lid. It is also easy to provide hinges.

[Disclosure of the invention]

Therefore, the present invention consists of a shaft inserted through a stationary side member, a spiral spring whose one end is connected to this sleeve, and a movable member to which an open ff1l member forming a pair with the stationary side member is connected with play. , the movable member is rotatable about the shaft,
It engages with the other end of the spiral spring to transmit the rotational force of the spiral spring in one direction to the opening/closing member, and is rotatable relative to either the fixed side member or the movable member. The above-mentioned shaft is characterized in that it is fixed to an external force and is provided with a release member for releasing this fixation, and urges the opening/closing member via a movable member. The spring force of the spiral spring is W! The adjustment is performed by rotating the pongee with the shaft released by the release member, and there is also play between the movable member that receives the spring force of the spiral spring and the opening/closing member. It is something that The present invention will be explained in detail below based on the illustrated embodiment. The illustrated example shows a hinge 1 for a lid 9 of a reaction vessel 8. FIG. This hinge 1 includes a pair of fixed arms 4, 4 that protrude from a reaction pot 8, which is a fixed side member, and a pair of movable arms 2, which are movable members that are attached to a lid 9, which is an opening/closing member, via an arm 90.゜2, both fixed arms 4, 4 and movable arm 2
, 2, the spiral spring 5, and the spiral spring 5.
As shown in FIG. 3, the shaft 3 is fixed to fixed arms 4, 4 by a dog clutch 7, which will be described later. Further, both movable arms 2, 2 are attached to the shaft 3 via a bearing member 20 and a sleeve 21, so that they can freely rotate around the shaft. In other words, the lid 9 can be opened and closed freely. A nut 33 is fixed to one end of the shaft 3, and a male thread 35 is provided at the other end, into which a nut 36 is screwed. Further, a sleeve 30 is attached to the center of the pongee 3. This sleeve 30 is provided with an axial groove 31 on its inner surface which engages with a pin 32 which is fixed to the shaft 3 and projects from the outer surface of the shaft 3. As shown in FIG. 4, the spiral spring 5 is provided with a locking piece 51 bent toward the center at one end on its inner circumferential side, and an engaging piece 52 extending in a tangential direction at the other end on its outer circumferential side. Something,
The locking piece 51 is placed on the outer periphery of the sleeve 30 by locking it in a groove provided on the outer surface of the sleeve 30 . As shown in FIG. 3, the cover 6 surrounding the spiral spring 5 includes a pair of disk-shaped shaft seal plates 60, 60 that are freely rotatably attached to both ends of the sleeve 30, and both wheel seal plates 60, 60.
It consists of a pair of side plates 61, 61 fixed to the cover 60, respectively, and an outer plate 62 fixed to the entire periphery of the side plates 61, 61, and the spiral spring 5 is completely housed inside the cover 6. It is designed to be stored away. The movable arm 2, which the engaging piece 52 of the spiral spring 5 contacts via the cover 6, is connected to the lid 9 via the arm 90 as described above.
The arm 90 fixed to the lid 9 and the movable arm 2 rotate in parallel to the axis 3, as shown in FIG. The lid 9 is connected to the movable arm 2 by a shaft 25 and is rotatable with respect to the movable arm 2. . However, the arm 9
Since the bottle 26 protruding from 0 engages with the engagement hole 27 provided in the movable arm 2, the rotatable range of the lid 9 with respect to the movable arm 2 is limited to the outer diameter of the bottle 26 and its outer diameter. The engagement hole 27, which has a slightly larger inner diameter, has only a slight play within the range. Further, on the side surface of one of the fixed arms 4, there is an engaging pawl 42 that engages with an engaging pawl 34 formed on the end surface of the nut 33.
A clutch plate 41 having an end face thereof is fixed, and a dog clutch 7 is constructed between the fixed arm 4 and the nut 33. In the figure, 37 is a washer, 38 is a spring washer, and 39 is a retaining ring. Therefore, when assembling this hinge 1, the movable arms 2, 2 are placed with both the fixed arms 4, 4 open, and the spring assembly consisting of the sleeve 30, the spiral spring 5, and the cover 6 is placed, and then the nut is tightened. The pongee 3 with 33 fixed at one end is inserted through these, the pin 32 protruding from the outer surface of the shaft 3 is engaged with the groove 31 on the inner surface of the sleeve 30, and the nut 36 is screwed onto the tip of the pongee 3 6 The sleeve 21 located between the movable arm 2 and the pongee 3 and the fixed arm 4 have a groove 2 through which the bottle 32 passes.
2.40 are provided respectively. In a state where the nut 36 is not completely tightened,
In other words, since the dog clutch 7 is disengaged, the shaft 3
When the pongee 3 is rotated clockwise in FIG. 1 in a state where it can freely rotate around the axis, the spiral spring 5 engages the retaining piece 52 on the outer circumferential side with the movable arm 2. Since the locking piece 51 on the inner peripheral side is locked to the sleeve 31 that rotates together with the shaft 3, the locking piece 52 is tightly wound and its spring force is increased, and the locking piece 52 is rotated through the cover 6. The force applied to the movable arm 2 and the lid 9 in the direction of opening the lid 9 is increased. Once a spring force sufficient to balance the weight of the lid 9 has been accumulated in the spiral spring 5, the nut 36 can be tightened.
3 and a clutch plate 41 on the fixed arm 4 are engaged to fix the pongee 3 to the fixed arm 4. The spiral spring 5 can be assembled under no load, and the spring force of the spiral spring 5 can be adjusted using the lid 9.
This can be done according to the load of the lid 9.
The operating force required to open and close the door can be adjusted while actually checking it. In the hinge 1 assembled and attached as described above, the engaging piece 52 of the spiral spring 5 applies a spring force to the cage 9 via the cover 6 and the movable arm 2, as described above. Therefore, the lid 9 can be opened and closed easily, reducing labor and ensuring safety against accidents such as finger jamming. In addition, the opening angle of li9 is the fifth
As shown in the figure, when the stopper 24 integrally protrudes from the movable arm 2 and comes into contact with the fixed arm 4, 90
The angle is regulated to slightly exceed °. Also, at this time, the stopper 64 provided on the cover 6 also stops on the fixed arm 4.
This prevents the spring force of the spiral spring 5 from acting on the lid 9 which is in the open state as described above. When closing the fi9, due to the aforementioned play between the opening of the lid 9 and the movable arm 2, even though the hinge 1 has a built-in spiral spring 5 and biases the movable arm 2, the reaction occurs. The position of the ao 9 with respect to the pot 8 is slightly adjusted 111g, which makes it possible to close the lid 9 reliably. In addition, since the spiral spring 5 shown here is covered by the cover 6, even if the spiral spring 5 is made of a material that is likely to rust, the occurrence of rust can be suppressed and the outside can be prevented from forming. This prevents rust from forming, so it can be installed in places where rust is disliked, such as food-related factories. Although the fixed side member is the reaction vessel 8 and the opening/closing member is the lid 9, it is needless to say that the fixed side member and the opening/closing member are not limited to these members. In the illustrated example, the biasing direction of the spiral spring 5 is the direction in which the opening/closing member is opened (direction), but this depends on the situation in which it is used. For example, 2. Even when the opening/closing member is a lid, In the case where an opening on the lower surface of the member is closed with a lid from below, the spring is provided so that the biasing direction of the spring is the direction in which the lid is closed.Fixing the pongee 3 to the fixing member 4 and releasing the fixing of the shaft 3 The structure of the member that performs this and the member that provides !!!/ between the movable arm 2 and the lid 9, which is the opening/closing member, is not limited to the structure shown in the drawings. Since is relative, the shaft 3 is fixed not to the stationary member via the dog clutch 7 or the like, but to a movable member so that it can rotate freely with respect to the stationary member. The pongee 3 may be rotated together with the movable member.

【Effect of the invention】

As described above, in the present invention, even if the opening/closing member that is opened/closed by the hinge is heavy, the weight is reduced by the spring force of the spiral spring, so the required opening/closing force is small. Moreover, since this spiral spring can set the spring force while assembled, it is easy to assemble, and it is also easy to set the spring force to an appropriate value. When a large spring force is required, its width, that is, the axial direction! ! Therefore, the radial size of the shaft can be made compact and compact, and the opening and closing member attached to the movable member can be easily opened. , the position of the opening/closing member can be adjusted without being affected by the spring force of the spiral spring, and the opening/closing member can be easily closed.

[Brief explanation of drawings]

FIG. 1 is a cutaway side view of an embodiment of the present invention, FIG. 2 is a cutaway plan view of the same, FIG. 3 is a sectional view of the same, FIG. 4 is a side view of the spiral spring, and FIG. 5 is a side view of the same as the above. 1 is a side view with the lid open, 1 is a hinge, 2 is a movable arm, 3 is a shaft, 4 is a fixed arm, 5 is a spiral spring, and 7 is a dog clutch. Agent Patent Attorney Ishi 1) Ai Seven procedural amendments (spontaneous) July 31, 1988 Patent M No. 144821 of 1988 2 Title of the invention Hinge 3 Relationship with the case of the person making the amendment Patent applicant residence Address: 3-1-22 Mitsuya Minami, Yodoyo-ku, Osaka City
Title Yashu Kakoiso Co., Ltd. Representative Ko Tomino - 4, Agent 5, Date of amendment order Voluntary 6, Number of inventions increased by amendment None 7,!
I Positive Target Method 1) Insert the following sentence between the 9th line and the 10th line on page 10 of the specification of the present application. [Another embodiment is shown in FIGS. 6 and 7. The basic form is exactly the same as the above embodiment, but here the shaft 3 and the rotating pongee 25 are arranged on the same plane as the joint surface between the lid 9 and the reaction vessel 8. In this case, when the lid 9 is closed and brought into close contact with the reaction vessel 8, the displacement of the lid 9 in the horizontal direction in the figure due to the play in the rotation shaft 25 is reduced, compared to the case shown in the above embodiment. In addition, the operation of closing the lid 9 becomes easier. In addition, the bin 28 attached to the movable arm 2 is
By coming into contact with the surface of the bottle 26 in the engagement hole 27, the play of the li9 is limited to the upper side of the line connecting the pongee 3 and the rotating shaft 25, thereby preventing the lid 9 from drooping.
When the lid 9 is closed, the entire periphery of the lid 9 is brought into contact with the reaction vessel 8 at the same time. 2) Insert the following sentence next to "1st side view, line 11, page 12, same as above." [, Fig. 6 is a cutaway side view of another embodiment, Fig. 7 is a side view of the same case in an open state.'' 3) Attachment tIIJ Fig. 6 and Fig. 7 are added to the drawings.

Claims (3)

[Claims] (1) Consisting of a shaft inserted through the fixed side member, a spiral spring connected at one end to the shaft, and a movable member to which the fixed side member and the pair of opening/closing members are connected with play. The movable member, which can freely rotate, engages with the other end of the spiral spring and transmits the rotational force of the spiral spring in one direction to the opening/closing member. The above-mentioned shaft is rotatable relative to either one of the shafts.
What is claimed is: 1. A hinge that is fixed to an external force and is provided with a release member for releasing the fixation. (2) The hinge according to claim 1, wherein the release member is a dog clutch. (3) A patent claim characterized in that the movable member is inserted through the movable member and is connected to the opening/closing member so as to be rotatable within a minute range via a rotation axis parallel to the above-mentioned axis. The hinge described in item 1 of the range.