WO2022138091A1

WO2022138091A1 - Hinge

Info

Publication number: WO2022138091A1
Application number: PCT/JP2021/044595
Authority: WO
Inventors: 洋太三吉
Original assignee: スガツネ工業株式会社
Priority date: 2020-12-24
Filing date: 2021-12-06
Publication date: 2022-06-30
Also published as: JPWO2022138091A1

Abstract

Provided is a hinge that can reduce or eliminate radial loads acting on the shaft of a rotary damper. A hinge (10) is provided with a rotary damper (4) having a main body (4a) and a shaft (4b) projecting from the main body (4a), the hinge comprising: a first member (1) mounted on a fixed member and having a first cylinder (1a) that accommodates the main body (4a) of the rotary damper (4) so as not to be able to rotate; a second member (2) mounted to a moveable member and having a second cylinder (2a) that accommodates the shaft (4b) of the rotary damper (4) so as not to be able to rotate; and a third member (3) mounted to the fixed member and having a third cylinder (3a). The second cylinder (2a) is disposed between the first cylinder (1a) and the third cylinder (3a). The second member (2) rotates about the shaft (4b) of the rotary damper (4) relative to the first member (1) and the third member (3). At least a portion of the radial load P acting on the second member (2) is received by the third member (3).

Description

Hinge

The present invention relates to a hinge having a main body and a rotary damper having a shaft portion protruding from the main body.

A hinge having a main body and a rotating damper having a shaft portion protruding from the main body is known (see Patent Document 1). The hinge includes a first member attached to a fixed member such as a housing and a second member attached to a movable member such as a lid and a door. The main body of the rotary damper is housed in the first member so as not to rotate. The shaft portion of the rotary damper is housed in the second member so as not to rotate.

The movable member rotates around the shaft of the rotary damper. When the movable member rotates, the shaft portion of the rotary damper rotates relative to the main body, and a damper force is generated. This damper force can alleviate the impact when the movable member is closed.

Japanese Unexamined Patent Publication No. 7-286472

However, in the conventional hinge, the shaft of the rotary damper receives the radial load acting on the movable member. Since the radial load acts on the shaft portion like a cantilever, there is a problem that the rotary damper may be damaged.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a hinge capable of reducing or eliminating a radial load acting on a shaft portion of a rotary damper.

In order to solve the above problems, the present invention is attached to one of a fixed member or a movable member in a hinge provided with a main body and a rotary damper having a shaft portion protruding from the main body, and the main body of the rotary damper does not rotate. It has a first member having a first cylinder portion that can be accommodated, and a second cylinder portion that is attached to the other of the fixing member or the movable member and in which the shaft portion of the rotary damper is non-rotatably accommodated. The second member is provided with a third member attached to the fixing member or the movable member and having a third cylinder portion, and the first cylinder portion is between the first cylinder portion and the third cylinder portion. Two cylinders are arranged, and the second member rotates relative to the first member and the third member about the shaft portion of the rotary damper, and at least a part of the radial load acting on the second member. Is a hinge that the third member receives.

According to the present invention, the radial load acting on the shaft portion of the rotary damper can be reduced or eliminated.

It is a figure which shows the example which attached the hinge of one Embodiment of this invention to a fixed member and a movable member (FIG. 1 (a) shows the closing position of a movable member, and FIG. 1 (b) shows the opening position of a movable member. show). 2 (a) is an enlarged view of part A of FIG. 1 (a), and FIG. 2 (b) is an enlarged view of part B of FIG. 1 (b). FIG. 3A is a perspective view of the hinge of the present embodiment in an assembled state, FIG. 3B is an exploded perspective view of the hinge (a view seen from the third member side), and FIG. 3C is shown in FIG. Is an exploded perspective view of the hinge (a view seen from the first member side). 4 (a) is a front view of the hinge, and FIG. 4 (b) is a sectional view taken along line AA of FIG. 4 (a). It is a perspective view of the hinge of this embodiment before connecting a 1st member and a 3rd member.

Hereinafter, the hinge of the embodiment of the present invention will be described in detail based on the attached drawings. However, the hinge of the present invention can be embodied in various forms, and is not limited to the embodiments described in the present specification. The present embodiment is provided with the intention of allowing those skilled in the art to fully understand the invention by adequately disclosing the specification.

1 (a) and 1 (b) show an example in which the hinge 10 of the embodiment of the present invention is attached to a fixed member (for example, a housing 11) and a movable member (for example, a lid 12). FIG. 1A shows the closing position of the lid 12, and FIG. 1B shows the opening position of the lid 12. 2 (a) and 2 (b) show enlarged views of FIGS. 1 (a) and 1 (b).

As shown in FIGS. 2A and 2B, the hinge 10 is co-located with the first member 1 attached to the housing 11 by the fastening member 13 such as a screw and the first member 1 to the housing 11 by the fastening member 13. It includes a third member 3 to be fastened, and a second member 2 attached to the edge (narrow side end face) of the lid 12 by a fastening member 14 such as a screw. The first member 1 and the third member 3 are on the fixed side. The second member 2 is on the movable side. When the lid 12 is opened and closed, the second member 2 rotates relative to the first member 1 and the third member 3.

3A shows a perspective view of the hinge 10 in an assembled state, FIG. 3B shows an exploded perspective view of the hinge 10 (a view seen from the third member 3 side), and FIG. 3C shows a view. An exploded perspective view (a view seen from the first member 1 side) of the hinge 10 is shown. 4 (a) shows a front view of the hinge 10, and FIG. 4 (b) shows a sectional view taken along line AA of FIG. 4 (a). 1 is a first member, 2 is a second member, 3 is a third member, and 4 is a rotary damper.

As shown in FIG. 3B, the rotary damper 4 includes a cylindrical main body 4a and a shaft portion 4b protruding from the main body 4a. A viscous fluid is filled between the main body 4a and the shaft portion 4b. A damper force is generated when the shaft portion 4b rotates in one direction (for example, clockwise direction C) with respect to the main body 4a. Since the rotary damper 4 itself is known and the configuration of the rotary damper 4 is not particularly limited, further detailed description thereof will be omitted.

The first member 1 includes a first cylinder portion 1a and a first bracket portion 1b that is integrally resin-molded with the first cylinder portion 1a. The first tubular portion 1a is formed in a bottomed cylindrical shape. As shown in FIG. 4B, the main body 4a of the rotary damper 4 is inserted in the first cylinder portion 1a. As shown in FIG. 3B, a pair of flat surfaces 21 parallel to each other are formed on the main body 4a of the rotary damper 4. A pair of detent projections 23 corresponding to the pair of flat surfaces 21 are formed on the inner surface of the first tubular portion 1a. Although FIG. 3B shows only the detent projection 23 on the back side, as shown in FIG. 4B, a pair of detent projections 23 are formed. By engaging the detent projection 23 with the flat surface 21 of the main body 4a of the rotary damper 4, the detent of the main body 4a of the rotary damper 4 with respect to the first member 1 is made.

The first bracket portion 1b is formed in, for example, a plate shape extending from the first cylinder portion 1a toward the third member 3. A reinforcing rib 25 is formed at the central portion of the first bracket portion 1b in the length direction. The first bracket portion 1b is formed with a through hole 24 through which the fastening member 13 for attaching to the housing 11 passes. The shape of the first bracket portion 1b is not particularly limited.

The second member 2 includes a second cylinder portion 2a and a second bracket portion 2b that is integrally resin-molded with the second cylinder portion 2a. The second tubular portion 2a includes a large diameter portion 2a1 and a small diameter portion 2a2 protruding from the large diameter portion 2a1. As shown in FIG. 4B, the main body 4a of the rotary damper 4 is inserted in the large diameter portion 2a1. The shaft portion 4b of the rotary damper 4 is inserted in the small diameter portion 2a2. As shown in FIG. 3B, a pair of flat surfaces 22 parallel to each other are formed on the shaft portion 4b of the rotary damper 4. As shown in FIG. 3C, a pair of flat surfaces 26 corresponding to the pair of flat surfaces 22 of the shaft portion 4b are formed on the inner surface of the small diameter portion 2a2. FIG. 3 (c) shows only the flat surface 26 on the back side, but as shown in FIG. 4 (b), a pair of flat surfaces 26 are formed. By engaging the flat surface 26 with the flat surface 22 of the shaft portion 4b of the rotary damper 4, the shaft portion 4b of the rotary damper 4 is prevented from rotating with respect to the second member 2.

As shown in FIG. 3B, the second bracket portion 2b is formed in the shape of a substantially quadrangular plate whose three sides are reinforced by a reinforcing wall, for example. The second bracket portion 2b is formed with a through hole 27 through which a fastening member 14 (see FIG. 2A) for attaching to the lid 12 passes. The shape of the second bracket portion 2b is not particularly limited.

As shown in FIG. 4B, a sleeve 31 is interposed between the second cylinder portion 2a of the second member 2 and the main body 4a of the rotary damper 4. A crossguard 31a is integrally formed on the sleeve 31. The crossguard 31a is interposed between the first cylinder portion 1a and the second cylinder portion 2a. The sleeve 31 is made of resin. The sleeve 31 allows the second member 2 to rotate smoothly with respect to the main body 4a of the first member 1 and the rotary damper 4, and also prevents the second member 2 from being worn.

As shown in FIG. 3 (c), the third member 3 includes a third cylinder portion 3a and a third bracket portion 3b that is integrally resin-molded with the third cylinder portion 3a. The third tubular portion 3a has a bottomed cylindrical shape. The third bracket portion has a plate shape extending from 3b, for example, the third cylinder portion 3a toward the first member 1. As shown in FIG. 5, the third bracket portion 3b has a shape complementary to the first bracket portion 1b and has a step 28. When the third bracket portion 3b is superposed on the first bracket portion 1b, the first member 1 and the third member 3 become inseparable in the axial direction. The shape of the third bracket portion 3b is not particularly limited.

As shown in FIG. 3 (c), the third bracket portion 3b is formed with a through hole 29 through which the fastening member 13 (see FIG. 2 (a)) for attaching to the housing 11 passes. The through hole 29 of the third bracket portion 3b and the through hole 24 of the first bracket portion 1b communicate with each other so that the first member 1 and the third member 3 can be fastened together with the housing 11.

As shown in FIG. 4B, the small diameter portion 2a2 of the second cylinder portion 2a is inserted in the third cylinder portion 3a. A sleeve 32 is interposed between the small diameter portion 2a2 of the second cylinder portion 2a and the third cylinder portion 3a. A crossguard 32a is integrally formed on the sleeve 32. The crossguard 32a is interposed between the large diameter portion 2a1 of the second cylinder portion 2a and the third cylinder portion 3a. The sleeve 32 is made of resin. The sleeve 32 smoothly rotates the second member 2 with respect to the third member 3 and prevents the second member 2 from being worn.

When the lid 12 is opened and closed, the second member 2 rotates about the shaft portion 4b of the rotary damper 4 with respect to the first member 1 and the third member 3. As shown in FIG. 4B, when a radial load P (a load in a direction orthogonal to the axial direction) acts on the second member 2, the third member 3 and the main body 4a of the rotary damper 4 receive the radial load P. Therefore, the radial load P acting on the shaft portion 4b of the rotary damper 4 can be reduced or eliminated, and the rotary damper 4 can be prevented from being damaged.

The present invention is not limited to being embodied in the above embodiment, and can be embodied in other embodiments without changing the gist of the present invention.

In the above embodiment, the first member and the third member are attached to the fixed member, and the second member is attached to the movable member. However, the first member and the third member are attached to the movable member, and the second member is attached to the fixed member. It may be attached. Further, after connecting the first member and the third member, either one of the first member and the third member may be attached to the fixed member or the movable member.

In the above embodiment, the radial load acting on the second member is received by both the third member and the main body of the rotary damper, but only the third member may receive the radial load.

In the above embodiment, the second cylinder portion is contained in the third cylinder portion, but the third cylinder portion may be contained in the second cylinder portion. Further, even if the second cylinder portion does not enter the third cylinder portion, the sleeve straddles the second cylinder portion and the third cylinder portion, and the third member receives the radial load acting on the second member via the sleeve. You may.

In the above embodiment, the main body of the rotary damper receives the radial load acting on the second member, but the sleeve is made to straddle the first cylinder portion and the second cylinder portion, and the radial load acting on the second member is transmitted through the sleeve. The first member may receive it.

This specification is based on Japanese Patent Application No. 2020-214518 filed on December 24, 2020. All this content is included here.

1 ... 1st member 1a ... 1st cylinder 2 ... 2nd member 2a ... 2nd cylinder 3 ... 3rd member 3a ... 3rd cylinder 4 ... Rotating damper 4a ... Main body 4b ... Shaft 31 ... Sleeve 32 ... Sleeve 24 ... Through hole of the first member 29 ... Through hole of the third member P ... Radial load

Claims

In a hinge having a main body and a rotary damper having a shaft portion protruding from the main body.
A first member attached to either a fixed member or a movable member and having a first tubular portion in which the main body of the rotary damper is non-rotatably accommodated.
A second member attached to the other of the fixed member or the movable member and having a second tubular portion in which the shaft portion of the rotary damper is non-rotatably accommodated.
A third member attached to the fixed member or the movable member and having a third tubular portion.
The second cylinder portion is arranged between the first cylinder portion and the third cylinder portion.
The second member rotates relative to the first member and the third member about the shaft portion of the rotary damper.
A hinge in which the third member receives at least a part of the radial load acting on the second member.
The hinge according to claim 1, wherein one of the second cylinder portion or the third cylinder portion enters the second cylinder portion or the other of the third cylinder portion.
The hinge according to claim 2, wherein a sleeve is interposed between the second cylinder portion and the third cylinder portion.
The hinge according to any one of claims 1 to 3, wherein the main body of the rotary damper receives a part of the radial load acting on the second member.
The hinge according to claim 4, wherein a sleeve is interposed between the second cylinder portion and the main body of the rotary damper.
A through hole is formed in each of the first member and the third member so that the first member and the third member can be fastened together to the fixing member or the movable member. The hinge according to any one of claims 1 to 5.