JPH0453432Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention is a method of linking a cup-shaped mounting member fixed to a door of furniture, etc., and a frame-shaped mounting member fixed to a side plate of the door in a plurality of links. The present invention relates to a hinge formed by rotatably connecting two mounting members, and more particularly to a catch mechanism formed by applying a torsion spring (wound spring) when both mounting members are in the closed position.

[Prior Art] Conventionally, as a catch mechanism for this type of hinge, one end of a coiled spring (torsion bar) is used as shown in FIGS. ) is applied to the link plate that is pivotally attached to the frame-type mounting member via cams and rollers. The wound spring in this case was attached by inserting a pin fixed to the leg plate into the spring wound portion.

[Problems to be Solved by the Invention] When attaching a coiled spring to a conventional catch mechanism, the frame-type mounting member is inverted and a cam or roller is inserted through the opening thereof, and then the coiled spring is inserted. Since the wound spring has a structure in which each torsion bar protrudes from the wound portion, it is in an unstable state. For this purpose, it is necessary to press one end of the bar manually using a jig or the like and align the hole in the leg plate with the hole in the spring-wound portion. After aligning the holes, the pin had to be inserted through the hole in the leg plate into the hole in the spring winding part and the end of the pin must be caulked to maintain the position of the winding spring, which was a very time-consuming task. The other end of the bar was then pressed with a jig and supported with a pin.

In particular, a plurality of coiled springs have been used in order to obtain a strong catching force, but in the case of a plurality of coiled springs, the above-mentioned work is even more difficult.

Due to the above-mentioned installation work, the abutment area of one end of the bar may become misaligned, but this has a large effect on the catching force.

The major problem was that because the spring-wound portion was fixed in position with a pin, the load on the link plate was not distributed to the other end of the bar, but was borne only at one end of the bar, resulting in severe metal fatigue. There is also a structure in which the holes in the spring-wound part are not pinned, but in this case it is necessary to attach the bar while pressing both ends of the bar in an unstable state, making the work extremely difficult.

The present invention was developed in order to eliminate the above-mentioned drawbacks, and its main purpose is to enable the torsion spring to be installed easily and accurately.

[Structure of the invention] In order to achieve the above object, the hinge catch mechanism according to the invention is such that the torsion spring has a spring-wound portion set in a storage recess formed on the upper surface of a spring sheet member having a substantially rectangular shape. This is a characteristic feature.

[Operation of the invention] The torsion spring is set by pushing the spring-wound portion of the torsion spring into the storage recess of the spring sheet member. In this case, the torsion bar protrudes from the spring sheet member to both sides thereof, but is held in a stable state, so the spring sheet member is dropped into the frame type mounting member and set. The other end of the bar is pressed and supported by a pin.

[Embodiment of the invention] The drawings show an embodiment of the hinge catch mechanism according to the invention, in which FIG. 1 is a longitudinal sectional view of the hinge in the closed position, FIG. 2 is an exploded perspective view of the catch mechanism, and FIG. 3 is a longitudinal sectional view of the catch mechanism in a position immediately before closing, FIG. 4 is a longitudinal sectional view of the catch mechanism in an open position, and FIGS. 5 and 6 are explanatory views of the attached state of the coiled spring.

The hinge consists of a cup-shaped mounting member 1 fixed to a door A of furniture, etc., a frame-shaped mounting member 2 fixed to a side plate B of furniture etc., and these 1 and 2 are connected to a shaft pin 3,
It consists of a plurality of link plates 7 and 8 rotatably connected at points 4, 5, and 6. The catch mechanism abuts the inner link plate 8 and cam members 9, 9, which are integrally protruded from both widthwise end surfaces of the outer link plate 7 on the shaft pin 4 side in a direction orthogonal to each other, from opposite directions. A roller 11 is rotatably interposed between three points of the coiled spring 10 and one end 10a.

The roller 11 is formed by rotatably inserting end roller shafts 13, 13 having protruding shafts 15, 15 into shaft holes 14, 14 on both end faces of an intermediate roller shaft 12. Preferably, the intermediate roller shaft 12 is made of a wear-resistant synthetic resin material with a slightly larger diameter, and the winding end 8a of the inner link plate 8 and the spring end 1 adjacent thereto are
Keep 0a in contact. By bringing the cam members 9, 9 into contact with the end roller shafts 13, 13 from different directions, the roller 11 is allowed to rotate as a result of relative movement between the three. Incidentally, reference numeral 16 denotes a notch provided in the frame type mounting member 2 for regulating the position of the rollers.

Further, the coiled spring 10 is set on a spring sheet member 17. That is, the spring sheet member 17
has a housing recess 18 for housing the spring-wound portion 10c on the upper surface of a substantially rectangular body, with a receiving groove 19 extending above and below the center of one side thereof, and receiving grooves 20, 20 extending above and below the left and right sides of the other side thereof. It is equipped with Therefore, as shown in FIGS. 5 and 6, a plurality of coiled springs 10, 1
If the spring wound portions 10c and 10c of 0 are pushed into the storage recess 18, they will be set and aligned, and one end of the spring 10
If a and 10a are pushed into the receiving groove 19, the other end of the spring 1
0b and 10b protrude from the other side.

In the figure, 22 is a washer for fixing the frame type mounting member 2, 23 is a mounting screw thereof, 24 is a split groove, 25 is a clock hole, 26 is a fixing screw, and 27 is an adjusting screw.

Next, attachment of the coiled spring 10 will be explained.

As shown in FIG. 5, it is sufficient to simply drop the roller 11 and the spring seat member 17 into the frame-type mounting member 2 in an inverted state. After that,
The other ends of the springs 10b, 10b are supported by a locking pin 21 between the leg plates 2a, 2a.

To explain the operation based on the above configuration, when the door A is in the open position as shown in FIG. The spring force acts in the opening direction of the door A through the roller 11 and the outside of the guide surfaces 9a, 9a.

As shown in FIG. 3, when the door A moves to the open position, the end roller shafts 13, 13 move from the guide surfaces 9a, 9a to the drop surfaces 9b, 9b as the cam members 9, 9 move. The intermediate roller shaft 12 is in rolling contact with the winding end portion 8a. Moreover, since the rollers 11 are in a free state and are oriented between the inner and outer link plates 7 and 8 by the spring load, the catch transition process can be carried out without wear. can get.

As shown in FIG. 1, in the closed position, the roller 11 is pressed between the drop-in surface 9b and the winding end 8a, so that the spring force is acting in the closing direction, and at the same time the inner and outer links are Locks will be applied at plates 7 and 8.

According to the above embodiment, the following effects are achieved.

Since the receiving groove 19 is provided in the spring sheet member 17, the spring ends 10a, 10a can be pushed together into the receiving groove 19, and the spring ends 10a, 10a can be pushed together into the receiving groove 19.
It can be set by dropping it in a state where 10a does not protrude.

There are also receiving grooves 2 on the other side of the spring seat member 17.
0, 20, the other end of the spring 10b, 10
Even when actuating b in a separated state, the receiving groove 20,
It can be pushed in and set to 20.

Although the spring sheet member 17 is shown with a flat bottom surface, it may be rounded to the extent that it does not fall over when set.

It goes without saying that the structure of the cup-type mounting member 1 and the frame-type mounting member 2 according to the present invention can be implemented in other types as well.

[Effects of the invention] As explained above, the invention provides the following effects.

When a cup-type mounting member and a frame-type mounting member, which are fixed to the door and side plate respectively, are rotatably connected with multiple links, and a torsion spring is attached to the link pivoted to the frame-type mounting member, a spring seat is used. Since the spring-wound portion is set in the storage recess on the upper surface of the member, it is sufficient to simply drop the spring sheet member, and the installation work is extremely simple and can be manufactured using an automated process.

Since the spring-wound part is only held by the spring sheet member, when the load is applied to one end of the bar, the spring sheet member moves and distributes the load to the other end of the bar, which allows the catching force to be applied over a long period of time. can be set.

[Brief explanation of the drawing]

The drawings show an embodiment of the hinge catch mechanism according to the present invention; FIG. 1 is a longitudinal cross-sectional view of the hinge in the closed position, FIG. 2 is an exploded perspective view of the catch mechanism, and FIG. 3 is the hinge immediately before closing. FIG. 4 is a longitudinal sectional view of the catch mechanism in the open position, and FIGS. 5 and 6 are explanatory diagrams of the assembled state. 1... Cup type mounting member, 2... Frame type mounting member, 3, 4, 5, 6... Shaft pin, 7, 8...
Link plate, 8a... winding end, 9... cam member, 10... spring, 10a... one end of spring, 11...
...Roller, 12, 28...Intermediate roller shaft, 13, 29
... End roller shaft, 17 ... Spring sheet member, 1
9, 20... Receiving groove.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A cup-type mounting member and a frame-type mounting member that are fixed to the door and side plate, respectively, are rotatably connected by multiple links and are pivoted to the frame-type mounting member. A hinge catch mechanism in which a bar of a torsion spring acts on a link, wherein the torsion spring has a spring-wound portion set in a storage recess formed on the upper surface of a spring sheet member having a substantially rectangular shape. Catch mechanism. (2) In the mechanism set forth in claim 1 of the utility model registration claim, the hinge catch is characterized in that a side surface of the substantially rectangular body of the spring sheet member is provided with a receiving groove extending upward and downward in order to accommodate the bar. mechanism. (3) A hinge catch mechanism according to claim 1, wherein the spring-wound portions of a plurality of torsion springs are set in the storage recess of the spring sheet member.