Spring device and its assembly

Abstract

To provide a spring device that offers flexibility in installation configuration and enables diverse usage patterns. [Solution] The device comprises a spring 1, a central member 2 having a first end body 22 that acts as a stopper on one end of a central body 21 that passes through the spring 1, and a second end body 23 on the other end, and a pressurizing member 3 having an inner circumferential surface that slides in the axial direction of the second end body 23, a pressurizing body 31 that pressurizes the spring 1 on one end, and a third end body 32 on the other end, wherein the first end body 22 is positioned on one side of two adjacent members and the third end body 32 is positioned on the other side of the two members to transmit the reaction force of the spring 1, and the second end body 23 has a seat 24 that can receive axial force.

Description

Technical Field

[0006] , , , , , ,

[0001] The present invention relates to a spring device used in a seismic isolation device or the like.

Background Art

[0002] As a seismic isolation device, a rotational inertia mass damper that operates by interlayer deformation and generates a rotational inertia mass by the rotation of a weight is installed in an arbitrary layer of a multi-layer structure, and an additional spring is installed in series with this rotational inertia mass damper, and a seismic isolation device has been proposed in which the natural frequency determined by the rotational inertia mass and the additional spring is synchronized with the natural frequency of the structure (see Patent Document 1).

[0003] In addition, a device using a rotational inertia mass damper that rotates a weight by a screw conversion mechanism for the mass element of the seismic isolation device has been proposed (see Patent Document 2).

[0004] In addition, as a spring device used in this type of seismic isolation device, the applicant of the present application has previously proposed a spring device using a disc spring that can cope with both tensile force and compressive force generated between adjacent members (see Patent Document 3).

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0006] Incidentally, for example, in a seismic damping device, if a large spring constant is required, multiple spring devices will be used. However, in the spring device described in Patent Document 3, multiple devices must be arranged in parallel, which results in a large installation area and can impose restrictions on the installation location and conditions.

[0007] In view of the problems of the spring device described in Patent Document 3, the present invention aims to provide a spring device and its assembly that offer flexibility in installation and enable diversification of usage. [Means for solving the problem]

[0008] To achieve the above objective, the spring device of the present invention is In a spring device interposed between two adjacent members so as to transmit force from two adjacent members, and which expands and contracts due to the relative displacement between the two members, spring and, A central member having a first end body that acts as a stopper on one end of a central body through which a spring passes, and a second end body on the other end, A pressurizing member having a second end body with an inner circumferential surface that slides in the axial direction, a pressurizing body that pressurizes a spring on one end, and a third end body on the other end, Equipped with, The first end body is positioned on one side of two adjacent members, and the third end body is positioned on the other side of the two members to transmit the reaction force of the spring, and the second end body has a seat that can receive axial force. It is characterized by the following:

[0009] Furthermore, in order to achieve the same objective, the spring device of the present invention is In a spring device interposed between two adjacent members so as to transmit force from two adjacent members, and which expands and contracts due to the relative displacement between the two members, spring and, A central member having a first end body that acts as a stopper on one end of a central body through which a spring passes, and a second end body that acts as a stopper on the other end, A pressurizing member having a second end body with an inner circumferential surface that slides in the axial direction, a pressurizing body that pressurizes a spring on one end, and a third end body on the other end, A tension member comprising a first cover interposed between a spring and a first end body on one end of the tensile force transmission body, and a second cover supporting the pressurizing body of the pressurizing member on the other end, Equipped with, The first end body is positioned on one side of two adjacent members, and the third end body is positioned on the other side of the two members to transmit the reaction force of the spring, and the second end body has a seat that can receive axial force. It is characterized by the following:

[0010] In this case, the spring can be a disc spring.

[0011] Furthermore, a key for preventing rotation can be provided at the sliding contact point between the central member and the pressurizing member.

[0012] Furthermore, multiple spring devices described above can be arranged in parallel, so that force is transmitted from two members adjacent to the first and third end bodies of each spring device.

[0013] Furthermore, multiple spring devices described above can be arranged in series by connecting the seat of the second end body of one spring device to the first end body of the other spring device via a connecting member, and the third end body of one spring device to an external connecting member that covers the other spring device, and the other end of the external connecting member and the third end body of the other spring device to a fourth end body.

[0014] Furthermore, the spring device can be arranged in series by connecting the seat of the second end body of the spring device to one end of the damper device via a connecting member, and the third end body of the spring device can be connected to an external connecting member that covers the damper device, and the other end of the external connecting member and the other end of the damper device can be connected to a fourth end body. [Effects of the Invention]

[0015] According to the spring device of the present invention, even when a plurality of them are arranged in series, the same operation as when they are arranged in parallel can be achieved. Therefore, there is freedom in the installation form, and diversification of the usage form can be achieved.

[0016] Also, by disposing a rotation prevention key at the sliding contact portion between the central member and the pressing member, when a rotational inertia mass damper (see Patent Document 2) that rotates a weight by a screw conversion mechanism and the spring device of the present invention are used in series coaxially with a screw shaft, it is possible to prevent the central member and the pressing member of the spring device from rotating even when receiving the torque around the screw shaft generated by the screw conversion mechanism.

Brief Description of the Drawings

[0017] [Figure 1] Fig. 1 shows a first embodiment of the spring device of the present invention, (a) is a front sectional view, and (b) is a side view. [Figure 2] Fig. 2 is a front sectional view showing an example of an assembly of spring devices configured by arranging two of the same spring devices in parallel. [Figure 3] Fig. 3 shows an example of an assembly of spring devices configured by arranging two of the same spring devices in series, (a) is a front sectional view, and (b) is a sectional view taken along line A-A of (a). [Figure 4] Fig. 4 shows a vibration model of a spring, (a) shows the case of arranging in parallel, and (b) shows the case of arranging in series. [Figure 5] Fig. 5 shows a second embodiment of the spring device of the present invention, (a) is a front sectional view, and (b) is a side view. [Figure 6] Fig. 6 shows the operation of the same spring device, (a) shows a state where a compressive force is applied to the spring device, (b) shows a neutral state, and (c) shows a state where a tensile force is applied to the spring device. [Figure 7] Fig. 7 shows an example of an assembly of spring devices configured by arranging two of the same spring devices in series, (a) is a front sectional view, and (b) is a sectional view taken along line B-B of (a). [Figure 8] Fig. 8 shows the operation of the assembly of the same spring device, (a) shows a state where a compressive force is applied to the assembly of the spring device, (b) shows a neutral state, and (c) shows a state where a tensile force is applied to the assembly of the spring device. [Figure 9] This is a front cross-sectional view showing an example of a spring device assembly configured by arranging three of the same spring devices in series. [Figure 10] This is a front cross-sectional view showing an example of a spring device assembly configured by arranging the spring device and damper device in series. [Figure 11] The vibration models of the spring-damper are shown, with (a) representing the case where they are arranged in parallel and (b) representing the case where they are arranged in series. [Modes for carrying out the invention]

[0018] Hereinafter, embodiments of the spring device and its assembly according to the present invention will be described based on the drawings.

[0019] Figure 1 shows a first embodiment of the spring device of the present invention. This spring device S1 is interposed between two adjacent members (not shown) so that force is transmitted from the two members, and expands and contracts due to the relative displacement that occurs between the two members. It comprises a spring 1, a central member 2 having a first end body 22 that acts as a stopper on one end of a central body 21 that passes through the spring 1, and a second end body 23 that acts as a stopper on the other end, and a pressurizing member 3 having an inner circumferential surface that slides in the axial direction of the second end body 23, a pressurizing body 31 that pressurizes the spring 1 on one end, and a third end body 32 on the other end. The first end body 22 is positioned on one side of the two adjacent members, and the third end body 32 is positioned on the other side of the two members to transmit the reaction force of the spring 1, and the second end body 23 has a seat 24 that can receive axial force. Furthermore, although the outer diameter of the second end body 23 is formed to be larger than the outer diameter of the central body 21 in this embodiment, it may be the same as the outer diameter of the central body 21.

[0020] Here, the spring device S1 expands and contracts in response to the compressive force transmitted from two adjacent members.

[0021] While the disc spring used in this embodiment is suitable for spring 1, other types of springs such as coil springs (compression springs), ring springs, rubber, and viscoelastic materials can also be used (the same applies to the second embodiment described below).

[0022] The central member 2 is formed by fixing the central body 21, which passes through the spring 1, and the first end body 22 and the second end body 23 using bolts (hex socket head bolts (cap bolts)) to form a single unit (the same applies to the second embodiment described below). The seats 24 of the first end body 22 and the second end body 23 are provided with female threads 22a and 24a for connecting to other members (the same applies to the second embodiment described below).

[0023] As shown in Figure 2, this spring device S1 is configured by arranging two (or three or more) spring devices S1 in parallel. They can be arranged and used such that force is transmitted from two adjacent members S, S to the first end body 22 and third end body 32 of each spring device S1 (the same applies to the second embodiment described below).

[0024] Furthermore, as shown in Figure 3, the spring device S1 can be used by arranging two (or more) spring devices S1 in series by connecting the seat 24 of the second end body 23 of one spring device S1 to the first end body 22 of the other spring device S1 via a connecting member 6, and by connecting the third end body 32 of one spring device S1 to an external connecting member 7 that covers the other spring device S1, and connecting the other end of the external connecting member 7 and the third end body 32 of the other spring device S1 to a fourth end body 8. Here, the external connecting member 7 is cylindrical in shape, but it can also be made of a square pipe-shaped member, or it can be made by covering and connecting it with multiple long bolts, or it can be made by covering and connecting it with multiple plate or column members (the same applies to the second embodiment below).

[0025] The connection between the seat 24 of the second end body 23 of the spring device S1 on one side and the first end body 22 of the spring device S1 on the other side and the connecting member 6 can be made by fixing them together using male threads formed on both ends of the connecting member 6 to female threads 22a and 24a formed on the seats 24 of the first end body 22 and the second end body 23, or by forming flanges on both ends of the connecting member 6 and fixing the flanges to the seats 24 of the first end body 22 and the second end body 23 with multiple bolts (the same applies to the second embodiment described below).

[0026] The connection between the third end body 32 of one spring device S1 and the external connecting member 7, the other end of the external connecting member 7, and the connection between the third end body 32 of the other spring device S1 and the fourth end body 8 are each fixed using bolts (hex socket head bolts (cap bolts)) to integrate them (the same applies to the second embodiment described below).

[0027] As shown in the vibration model of spring k in Figure 4, the assembly using this spring device S1 can perform the same function whether two are arranged in series (Figure 4(b)) or in parallel (Figure 4(a)), thus offering flexibility in installation configuration and enabling diversification of usage (the same applies to the second embodiment described below).

[0028] Figure 5 shows a second embodiment of the spring device of the present invention. This spring device S2 is interposed between two adjacent members (not shown) so that force is transmitted from them, and expands and contracts due to the relative displacement between the two members. It consists of a spring 1, a central member 2 having a first end body 22 that acts as a stopper on one end of a central body 21 that passes through the spring 1, and a second end body 23 that acts as a stopper on the other end, and a pressurizing member 3 having an inner circumferential surface that slides in the axial direction of the second end body 23, a pressurizing body 31 that pressurizes the spring 1 on one end, and a third end body 32 on the other end. The tensile force transmission body 41 includes a tensile force transmission body 41 with a first cover 42 interposed between the spring 1 and the first end body 22 on one end, and a tensile member 4 with a second cover 43 on the other end that supports the pressurizing body 31 of the pressurizing member 3. The first end body 22 is positioned on one side of two adjacent members, and the third end body 32 is positioned on the other side of the two members to transmit the reaction force of the spring 1, and the second end body 23 is provided with a seat 24 that can receive axial force. Here, the tensile force transmission body 41 is cylindrical in shape, but it can also be made of a square pipe-shaped member, or it can be made by covering and connecting it with multiple long bolts, or it can be made by covering and connecting it with multiple plate members or column members.

[0029] Here, as shown in Figure 6, the spring device S2 expands and contracts in response to the compressive and tensile forces transmitted from two adjacent members (Figure 6(a) shows the spring device S2 when a compressive force is applied). Figure 6(b) shows the neutral state, Figure 6(c) shows the state when a tensile force is applied to the spring device S2. Therefore, this spring device S2 has the same basic configuration as the spring device S1 of the first embodiment, and also has the following configuration. Regarding the tension member 4 The tension member 4 is integrated by fixing the tension force transmission body 41 and the first cover 42 and the second cover 43 using bolts (hex socket head bolts (cap bolts)). Regarding the relationship between central member 2 and tension member 4 The central body 21 penetrates the opening of the first lid 42, and the first end body 22 is positioned on the outside of the lid 42. The diameter of the first end body 22 is greater than the inner diameter of the opening of the first lid body 42. Regarding the relationship between the pressurizing member 3 and the tensioning member 4. The third end body 32 of the pressurizing member 3 is inserted through the opening of the second cover 43 of the tensioning member 4. The inner diameter of the pressurizing body 31 of the pressurizing member 3 is larger than the outer diameter of the second end body 23 of the central member 2. The outer diameter of the pressurizing body 31 of the pressurizing member 3 is larger than the inner diameter of the opening of the second cover 43 of the tensioning member 4 (it locks when a tensile force is applied). • Relationship between two adjacent components The first end portion 22 of the central member 2 is connected to one of the two adjacent members. The third end portion 32 of the pressurizing member 3 is connected to the other of the two adjacent members.

[0030] In Figure 6(a), when the first end body 22 of the spring device S2 is connected to the fixed end and a compressive force is applied to the third end body 32, the pressurizing member 3 moves to one end, the pressurizing body 31 compresses and deforms the spring 1 toward one end, and the restoring force at that time pushes back the third end body 32 via the pressurizing body 31. At that time, one end of the spring 1 presses the first end body 22, which is connected to the first cover body 42, against the fixed end to obtain a reaction force. In Figure 6(c), when the first end body 22 of the spring device S2 is connected to the fixed end and a tensile force is applied to the third end body 32, the pressurizing member 3 moves to the other end, the pressurizing body 31 is locked to the second cover body 43, and the tensioning member 4 follows the movement of the pressurizing body 31 and moves to the other end. At that time, the first cover body 42 compresses and deforms one end of the spring 1 toward the other end. The restoring force at that time is transmitted sequentially through the first cover body 42, the tensioning force transmission body 41, the second cover body 43, and the pressurizing body 31, pulling the third end body 32 back toward the one end. At that time, the other end of the spring 1 is locked to the second end body 23 and receives a reaction force from the fixed end sequentially through the central body 21 and the first end body 22. These mechanisms convert the restoring force of the compression spring into a tensile force.

[0031] A key 5 for preventing rotation between the central member 2 and the pressurizing member 3 can be provided at the sliding contact portion between the central member 2 and the pressurizing member 3 (the same applies in the first embodiment).

[0032] Similar to spring device S1, this spring device S2 can be used by arranging two (or three or more) units in parallel. In addition, as shown in Figure 7, two spring devices S2 can be arranged in series by connecting the seat 24 of the second end body 23 of one spring device S2 to the first end body 22 of the other spring device S2 via a connecting member 6. Furthermore, the third end body 32 of one spring device S2 can be connected to an external connecting member 7 that covers the other spring device S2, and the other end of the external connecting member 7 and the third end body 32 of the other spring device S1 can be connected to a fourth end body 8.

[0033] As shown in Figure 7, the spring device S2 assembly expands and contracts in response to compressive and tensile forces transmitted from two adjacent members (Figure 8(a) shows the spring device S2 assembly under compressive force, Figure 8(b) shows the neutral state, and Figure 8(c) shows the spring device S2 assembly under tensile force).

[0034] In Figure 8(a), in the spring device S2 assembly, the first end body 22 of one spring device S2 is connected to a fixed end. When a compressive force is applied to the fourth end body 8, the fourth end body 8 moves the third end body 32 of the other spring device S2 toward one end, and its restoring force pushes back the fourth end body 8. At this time, the first end body 22 of the other spring device S2 is connected to the seat 24 of the one spring device S2 by a connecting member 6 and receives a reaction force via the central member 2 of the one spring device S2 which is connected to a fixed end. Meanwhile, the fourth end body 8 also moves the third end body 32 of the one spring device S2 toward one end via an external connecting member 7, and its restoring force pushes back the fourth end body 8 via the external connecting member 7, so that the restoring forces of both spring devices S2 act on the fourth end body 8. In Figure 8(c), in the spring device S2 assembly, the first end body 22 of one spring device S2 is connected to a fixed end. When a tensile force is applied to the fourth end body 8, the fourth end body 8 moves the third end body 32 of the other spring device S2 to the other end. The compression-tension conversion mechanism generates a restoring force against the tension, pulling the fourth end body 8 back to the one end. At this time, the first end body 22 of the other spring device S2 is connected to the seat 24 of the one spring device S2 by a connecting member 6, and receives a reaction force against the tensile force via the central member 2 of the one spring device S2 connected to its fixed end. Meanwhile, the fourth end body 8, via the external connecting member 7, also moves the third end body 32 of the spring device S2 on one side to the other end, and the compression-tension conversion mechanism generates a restoring force against tension. This restoring force pulls the fourth end body 8 back via the external connecting member 7, and the restoring force of the tensile force from both spring devices S2 acts on the fourth end body 8.

[0035] As shown in Figure 9, this spring device S2 can also be used by arranging three (or four or more) spring devices S2 in series (the same applies to the first embodiment).

[0036] In addition, as shown in Figure 10, the spring device S2 can be arranged in series by connecting the seat 24 of the second end body 23 of the spring device S2 to one end 91 of the damper device 9 via a connecting member 6, and the third end body 32 of the spring device S2 can be connected to an external connecting member 7 that covers the damper device 9, and the other end of the external connecting member 7 and the other end 92 of the damper device 9 can be connected to a fourth end body 8 for use (the same applies to the first embodiment).

[0037] The connection between the seat 24 of the second end body 23 of the spring device S2 and the one end 91 of the damper device 9 is made by fixing the female threads 24a and 91a formed on the seat 24 of the second end body 23 and the one end 91 of the damper device 9 using male threads formed on both ends of the connecting member 6, thereby integrating them. Alternatively, flanges can be formed on both ends of the connecting member 6, and the flanges can be fixed to the one end 91 of the damper device 9 and the second end body with multiple bolts to integrate them. Alternatively, a flange can be formed on the one end 91 of the damper device 9 and fixed to it with multiple bolts to integrate them.

[0038] In this assembly of damper device 9 and spring device S2, when the first end body 22 of spring device S2 is connected to a fixed end and the fourth end body 8 is moved axially, the third end body 32 of spring device S2 moves due to the external connecting member 7 connected to the fourth end body 8, and its restoring force acts on the fourth end body 8 via the external connecting member 7. At the same time, the damper device 9, which is connected to the seat 24 of the central member 2 of spring device S2 connected to the fixed end by a connecting member 6, takes a reaction force at one end 91, causing the damper device 9 connected to the fourth end body 8 to move and generating a damping force. Therefore, the restoring force of spring device S2 and the damping force of damper device 9 act simultaneously on the fourth end body 8.

[0039] As shown in the vibration model of spring k-damper c in Figure 11, the assembly using this spring device S2 and damper device 9 can be arranged in series (Figure 11(b)) or in parallel (Figure 11(a)) to produce the same effect, thus offering flexibility in installation configuration and enabling diversification of usage.

[0040] The spring device and its assembly of the present invention have been described above based on embodiments. However, the present invention is not limited to the configurations described in the above embodiments, and the configuration can be modified as appropriate without departing from the spirit of the invention, such as by appropriately combining the configurations described in each embodiment. [Industrial applicability]

[0041] The spring device and its assembly of the present invention offer flexibility in installation configuration and allow for diverse usage configurations, making them widely applicable to spring devices used in seismic damping devices and the like. [Explanation of symbols]

[0042] S Adjacent two members S1 Spring device S2 spring device 1 spring 2. Central member 21 Centrosome 22 First end body 22a Female thread 23 Second end body 24 seats 24a Female thread 3 Pressurizing member 31 Pressurized body 32 Third end body 4. Tensile members 41. Tensile force transmission body 42 The first lid 43 The second lid 5 Keys 6. Connecting Members 7 External connection members 8. Fourth end body 9. Damper device 91 One end side 91a Female thread 92 Other end side

Claims

1. In a spring device interposed between two adjacent members so as to transmit force from two adjacent members, and which expands and contracts due to the relative displacement between the two members, Spring (1) and, A central member (2) having a first end body (22) that acts as a stopper on one end of a central body (21) that passes through the spring (1), and a second end body (23) on the other end, A pressurizing member (3) has an inner circumferential surface that slides in the axial direction of the second end body (23), a pressurizing body (31) that pressurizes the spring (1) on one end side, and a third end body (32) on the other end side, Equipped with, The first end body (22) is positioned on one side of two adjacent members, and the third end body (32) is positioned on the other side of the two members to transmit the reaction force of the spring (1), and the second end body (23) has a seat (24) that can receive axial force. A spring device characterized by the following.

2. In a spring device interposed between two adjacent members so as to transmit force from two adjacent members, and which expands and contracts due to the relative displacement between the two members, Spring (1) and, A central member (2) having a first end body (22) that acts as a stopper on one end of a central body (21) that passes through the spring (1), and a second end body (23) that acts as a stopper on the other end, A pressurizing member (3) has an inner circumferential surface that slides in the axial direction of the second end body (23), a pressurizing body (31) that pressurizes the spring (1) on one end side, and a third end body (32) on the other end side, A tension member (4) is provided with a first cover (42) interposed between a spring (1) and a first end body (22) on one end of the tensile force transmission body (41), and a second cover (43) on the other end that supports the pressurizing body (31) of the pressurizing member (3), Equipped with, The first end body (22) is positioned on one side of two adjacent members, and the third end body (32) is positioned on the other side of the two members to transmit the reaction force of the spring (1), and the second end body (23) has a seat (24) that can receive axial force. A spring device characterized by the following.

3. The spring device according to claim 1 or 2, characterized in that the spring (1) is made of a disc spring.

4. The spring device according to claim 1 or 2, characterized in that a key (5) for preventing rotation is provided at the sliding contact portion between the central member (2) and the pressurizing member (3).

5. A spring device assembly characterized in that a plurality of spring devices according to claim 1 or 2 are arranged in series by connecting the seat (24) of the second end body (23) of one opposing spring device and the first end body (22) of the other spring device via a connecting member (6), and the third end body (32) of one spring device is connected to an external connecting member (7) that covers the other spring device, and the other end of the external connecting member (7) and the third end body (32) of the other spring device are connected to a fourth end body (8).

6. An assembly of a spring device characterized in that the seat (24) of the second end body (23) of the spring device described in claim 1 or 2 and one end side (91) of the damper device 9 are connected via a connecting member (6) to be arranged in series, the third end body (32) of the spring device is connected to an external connecting member (7) that covers the damper device (9), and the other end side of the external connecting member (7) and the other end side (92) of the damper device (9) are connected to a fourth end body (8).

7. The seat (24) of the second end body (23) of the spring device according to claim 4 and one end of the damper device 9 An assembly of a spring device characterized by being arranged in series by connecting the side (91) via a connecting member (6), the third end body (32) of the spring device being connected to an external connecting member (7) that covers the damper device (9), and the other end of the external connecting member (7) and the other end (92) of the damper device (9) being connected to a fourth end body (8).

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