ELEVATOR GUIDE RAIL HOLDING DEVICE

Abstract

Elevator guide rail holding device for holding a guide rail (1) comprising a guide rail flange portion (1a) with an inclined surface (1b) and installed in a shaft of an elevator, comprising: a rail support (4) provided in the shaft of the elevator such that the guide rail (1) is fixed thereto; a first holding portion (2, 7) provided on the rail support (4) and contacting the guide rail (1) with a predetermined contact force so as to limit at least a longitudinal movement of the guide rail under its weight while allowing the guide rail (1) to slide in the longitudinal direction relative to the rail support (4); and a second holding portion (3, 8) which restricts movement of the guide rail (1) in a cross-sectional direction or in a falling direction, but does not restrict sliding thereof in the longitudinal direction, wherein the first holding section (2, 7) is layered between the second holding section (3, 8) and the rail holder (4), wherein the first holding portion (2, 7) is formed to have a Z-shaped cross-section or a substantially S-shaped cross-section, and comprises first and second contact portions (2b, 2d; 7b, 7d), wherein the first contact portion (2b; 7b) is configured to contact an upper portion of a side surface of the guide rail flange portion (1a), and the second contact portion (2d; 7d) is configured to contact the inclined surface (1b) of the guide rail flange portion (1a) in a vicinity of a base of the guide rail (1), so that the guide rail flange portion (1a) is contacted and held by two points, namely by the first contact portion (2b; 7b) and the second contact portion (2d; 7d).

Description

Technical area

[0001] This invention relates to a device for fastening a guide rail of an elevator to a shaft via a rail support provided in the shaft. Technological background

[0002] When a guide rail is attached to an elevator shaft, the guide rail is mounted or fixed to a rail bracket provided in the shaft via a fixing bracket or clamp. However, the walls of the shaft, which is an architectural structure, may contract over time, or the guide rail may expand and contract due to temperature changes therein. As a result of these phenomena, a relative misalignment occurs between the rail bracket and the guide rail. At this time, the guide rail, and therefore the fixing bracket, receives a frictional force from the rail bracket. If the fixing bracket is firmly fixed (when the frictional force is large), a large axial load is exerted on the guide rail due to the relative misalignment, possibly causing the guide rail to break.Therefore, a method for reducing the frictional force by applying a sliding clamp instead of a fixing clamp or an elevator guide rail holding device that generates substantially no frictional force (see PTL 1), for example, has been proposed as a means for adjusting the frictional force of the fixing clamp. Citation listPatent literature [PTL 1] JP 2005- 53 638 A [PTL 2] DE 25 26 448 B2 [PTL 3] DE 20 2009 007 357 U1 [PTL 4] DE 24 34 806 B1 [PTL 5] US 3 888 413 A Summary of the inventionTechnical problem

[0003] In this type of elevator, when a relative misalignment occurs between the rail support and the guide rail, no frictional force is generated between the guide rail and the holding device, and therefore, longitudinal movement of the guide rail is not restricted. As a result, the guide rail does not break. However, with this holding device, the weight of the guide rail cannot be held, and therefore, a clamp or the like capable of holding at least the weight of the guide rail must be added to fix the guide rail with stability. In other words, this means that a clamp or the likeA clamp capable of supporting the weight of the guide rail is added to the PTL 1 configuration, resulting in an increase in the size of the guide rail support fixture. As the size of the guide rail support fixture increases, the rail bracket to which the guide rail support fixture is mounted must also be increased in size. Furthermore, additional work is required to install the added sliding clamp.

[0004] This invention was designed to solve the problems described above, and an object thereof is to provide an elevator guide rail holding device in which a first holding portion that contacts a guide rail with a predetermined pressing force so as to slide the guide rail in a longitudinal direction and a second holding portion that restricts movement of the guide rail in a cross-sectional direction or a falling direction are integrally laminated with a rail bracket, with the result that the holding device can be made more compact and a required amount of assembly work can be reduced. Solution to the problem

[0005] This object is achieved with an elevator guide rail holding device according to claims 1 and 2. Advantageous effects of the invention

[0006] With this invention, it is possible to realize an elevator guide rail holding device in which a first holding portion that contacts a guide rail with a predetermined pressing force so as to slide the guide rail in a longitudinal direction and a second holding portion that restricts movement of the guide rail in a cross-sectional direction or a falling direction are integrally formed, with the result that the holding device can be made more compact and a required amount of assembly work can be reduced. Short description of the drawings Fig. 1 is a plan view (a sectional view) showing an elevator guide rail holding device according to a first embodiment of this invention. Fig. 2 illustrates a front view of the elevator guide rail holding device according to the first embodiment of this invention. Fig. Figure 3 is a perspective view showing the main parts of the Fig. 1 or Fig. 2 according to the first embodiment of this invention. Fig. Figure 4 is a perspective view showing the main parts of the Fig. 1 or Fig. 2 according to the first embodiment of this invention. Fig. 5 is a plan view (a sectional view) showing an elevator guide rail holding device according to a second embodiment of this invention. Fig. 6 illustrates a front view of the elevator guide rail holding device according to the second embodiment of this invention. Fig. Figure 7 is a plan view (a sectional view) showing the main parts of the Fig. 5 according to the second embodiment of this invention. Fig. Figure 8 is a front view showing the main parts of the Fig. 6 according to the second embodiment of this invention. Description of the embodimentsFirst embodiment

[0007] Fig. 1 to 4 are views illustrating an elevator guide rail holding device according to a first embodiment of this invention. Fig. 1 shows a plan view (a sectional view) of the guide rail holding device. Fig. 2 shows a front view of the guide rail holding device. Fig. 3 is a perspective view showing a first holding portion of the Fig. 1 or Fig. 2 shows. Fig. Figure 4 is a perspective view showing a second holding portion of the Fig. 1 or Fig. 2. It should be noted that the drawings do not show an elevator shaft and a hoisting machine, a speed controller, a control panel, etc., which serve as shaft devices.

[0008] In the drawings, a back surface of a guide rail flange portion 1a provided at a lower portion of a guide rail 1 is arranged on a rail bracket 4 welded to a base plate (not shown) provided on a structural beam (not shown) of a shaft so as to contact an upper surface 4a of the rail bracket. A first clamp 2 serving as a first holding portion is arranged on each side of the guide rail flange portion 1a, the first clamp 2 having a mounting surface 2a brought into contact with and fixed to the upper surface 4a of the rail bracket, a through hole 2e provided in the mounting surface 2a, and a contact portion 2b adapted to extend from the mounting surface 2a along an upper portion of a lateral side.surface of the guide rail flange portion 1a and a corner portion near it, an extension surface 2c which extends from the contact portion 2b toward a front side of the guide rail 1 up to a predetermined height and then turns around so as to further extend toward a base side of the guide rail 1, and a contact portion 2d which is provided at a tip end of the extension surface 2c so as to contact an inclined surface 1b of the guide rail flange portion 1a near the base of the guide rail 1.

[0009] Further, the first bracket 2 is formed of a bent steel plate having a Z-shaped cross section, and a large edge portion is formed at the contact portion 2d that contacts the guide rail flange portion 1a near the base of the guide rail 1. By increasing a distance from the contact portion 2b to the contact portion 2d while narrowing the width in this way, deformation of the first bracket 2 caused by displacement of the guide rail flange portion 1a in a height direction can be suppressed, and a spring constant of the bracket can be reduced.

[0010] Next, a second clamp 3 serving as a second holding portion is formed with a mounting face 3a that is brought into contact with and fixed to the mounting face 2a of the first clamp 2, a through-hole 3e provided in the mounting face 3a, lateral face portions 3b extending from respective ends of the mounting face 3a in a direction substantially perpendicular to the upper face 4a of the rail bracket, and a protrusion portion 3d extending from one side of each lateral face portion 3b to protrude from the mounting face 3a, and having a height substantially identical to the lateral portion of the rail flange portion 1a on the side of a substantial contact portion 3c that substantially contacts the inclined face 1b near the lateral portion of the rail flange portion 1a.Furthermore, the second bracket 3 is formed of a bent steel plate having a C-shaped cross section and is set to have a larger spring constant than the first bracket 2. In other words, this means that a stiffness of the second bracket 3 is increased and the second bracket 3 is therefore less likely to deform in response to an external load.

[0011] Furthermore, the second bracket 3 is laminated on the upper portion of the mounting side 2a of the first bracket 2 such that the contact portion 2d of the first bracket 2 contacts the inclined surface 1b of the guide rail flange portion 1a, and is firmly fastened thereto by a tension bolt 5 and a tension nut 6, which together constitute a high-strength fastening tool, from the back of the rail bracket 4 via the through hole 2e in the first bracket 2 and the through hole 3e in the second bracket 3. In other words, the guide rail flange portion 1a is contacted and held by two points, namely the contact portion 2b and the contact portion 2d of the first bracket 2.

[0012] In the first embodiment, movement of the guide rail 1 in a cross-sectional direction including a front-to-back direction and a left-to-right direction is tightly restricted by the contact portion 2b of the first bracket 2 and the contact portion 3c of the second bracket 3. Meanwhile, the contact portion 2d of the first bracket 2 exerts a pressing force that holds movement of the guide rail 1 in a single direction other than the cross-sectional direction including the front-to-back direction and the left-to-right direction, or a more specific longitudinal movement of the guide rail 1 under its weight. Therefore, the first bracket 2 supports the weight of the guide rail 1 by adjusting the spring constant of the first bracket 2 so that the first bracket 2 exerts the minimum pressing force required to hold the weight of the guide rail 1 thereon, and as a result, the first bracket 2 slides or slides.the guide rail 1 does not slip out of the rail holder.

[0013] Furthermore, by setting the spring constant of the first clamp 2 above the set spring constant, when a large frictional force is applied to the guide rail 1 from the rail support 4 due to contraction of the shaft walls over time or due to expansion and contraction of the guide rail 1 due to a temperature change therein, the guide rail 1 can be caused to slide relative to the rail support 4 in response to the frictional force by an amount corresponding to the frictional force applied thereto. As a result, the guide rail 1 can be prevented from breaking in response to a large frictional force applied thereto from the rail support 4 due to contraction of the shaft walls over time and expansion and contraction of the guide rail 1 due to a temperature change therein.

[0014] Furthermore, the spring constant based on the shape of the first clamp 2 is set smaller than the spring constant based on the shape of the second clamp 3. More specifically, this means that the first clamp 2 is required to support the weight of the guide rail 1 with stability and to cause the guide rail 1 to slide relative to the rail bracket 4 in response to a large frictional force exerted thereon from the rail bracket 4 by an amount corresponding to the frictional force exerted thereon, above the set spring constant. Thus, when the spring constant of the first clamp 2 is high, although the pressing force can be adjusted while being comparatively high, an adjustment range within which an appropriate pressing force is obtained becomes narrower.Accordingly, the spring constant based on the shape of the first clamp 2 is set smaller than the spring constant based on the shape of the second clamp 3, so that the first clamp 2 can be adjusted within a range extending from the comparatively small contact force to the minimum required contact force.

[0015] Meanwhile, the second clamp 3 is required to tightly restrict movement of the guide rail 1 in the cross-sectional direction, including the front-back direction and the left-right direction, and therefore, its spring constant is preferably high rather than low. By increasing the spring constant, a degree of elastic deformation occurring in the second clamp 3 decreases, and therefore, movement of the guide rail 1 in the cross-sectional direction, including the front-back direction and the left-right direction, can be more tightly restricted.

[0016] According to the first embodiment, as described above, it is possible to provide an elevator guide rail holding device for holding the guide rail 1 installed in the elevator shaft, including the rail bracket 4 provided in the elevator shaft such that the guide rail 1 is fixed thereto, the first bracket 2 provided on the rail bracket 4 as a first holding portion that contacts the guide rail 1 with a predetermined pressing force so as to at least limit longitudinal movement of the guide rail 1 under its weight while allowing the guide rail 1 to slide relative to the rail bracket 4 in the longitudinal direction, and the second bracket 3 serving as a second holding portion that limits movement of the guide rail 1 in a cross-sectional direction or in a falling direction but does not limit sliding thereof in the longitudinal direction.The first bracket 2 is laminated between the second bracket 3 and the rail bracket 4 to form an integrated holding device, with the result that the holding device can be made more compact and the required amount of assembly work can be reduced. Furthermore, by fastening the tension screw 5, a frictional holding force acting in a horizontal direction on the first bracket 2 is generated on a total of two sides, namely the upper side of the rail bracket 4 and the lower side of the first bracket 2, as well as the upper side of the first bracket 2 and the lower side of the second bracket 3. Therefore, the frictional holding force is increased compared to the system employed in the prior art in which the guide rail 1 is held by a single side.

[0017] Furthermore, by bringing the first bracket 2 into contact with the inclined side of the guide rail flange portion 1a near the base of the guide rail 1, the distance from the contact portion 2b to the contact portion 2d can be increased, with the result that permanent deformation of the first bracket 2 due to displacement of the guide rail flange portion 1a in a height direction can be suppressed and the spring constant of the bracket can be reduced.

[0018] Furthermore, by forming the first clamp 2 to have a Z-shaped cross section, the distance from the contact portion 2b to the contact portion 2d can be increased, with the result that permanent deformation of the first clamp 2 due to displacement of the guide rail flange portion 1a in a height direction can be suppressed and the spring constant of the clamp can be reduced. Therefore, the first clamp 2 can be configured to contact the guide rail 1 with a predetermined contact force, thereby limiting at least a longitudinal movement of the guide rail 1 under its weight while allowing the guide rail 1 to slide in the longitudinal direction relative to the rail support 4.

[0019] Furthermore, by forming the second bracket 3 to have a C-shaped cross section, an improvement in workability can be achieved and the spring constant can be easily increased, enabling a reduction in the degree of elastic deformation. Furthermore, when the first bracket 2 is laminated thereon, the first bracket 2 is less likely to deviate and can therefore be reliably held.

[0020] Note that in the first embodiment, the first bracket 2 is laminated between the second bracket 3 and the rail bracket 4, but instead, the second bracket 3 could be laminated between the first bracket 2 and the rail bracket 4. In other words, identical actions and effects to those in the first embodiment are achieved by laminating the second bracket 3 between the first bracket 2 and the rail bracket 4. Second embodiment

[0021] Fig. 5 to 8 are views illustrating an elevator guide rail holding device according to a second embodiment of this invention. Fig. 5 shows a plan view (a sectional view) of the guide rail holding device. Fig. 6 shows a front view of the guide rail holding device. Fig. Figure 7 is a plan view (a sectional view) showing the main parts of the Fig. 5 shows. Fig. Figure 8 is a front view showing the main parts of the Fig. 6. The elevator guide rail holding device according to the second embodiment of this invention differs in that a first bracket 7 is formed to have a substantially S-shaped cross section, and a cutout portion 8f is provided in a part of a second bracket 8. The remaining parts are identical, and therefore, identical reference numerals have been attached thereto, and their descriptions have been omitted.

[0022] In the drawings, the first bracket 7 is formed of a bent steel plate having a substantially S-shaped cross section and is configured such that a contact portion 7d contacts the inclined side 1b of the guide rail flange portion, and a contact portion 7b contacts the upper portion of a lateral side of the guide rail flange portion 1a and the corner portion near it. By increasing the distance from the contact portion 7d to the contact portion 7b, permanent deformation of the first bracket 7 due to displacement of the guide rail flange portion 1a in a height direction can be suppressed, and the spring constant of the bracket can be reduced. The first bracket 7 contacts and holds the guide rail flange portion 1a at two points, namely, the contact portions 7b and 7d.

[0023] The contact portion 7d of the first bracket 7 does not contact the vicinity of the base of the guide rail 1, and therefore, the distance from the contact portion 7b to the contact portion 7d is shorter than that of the first bracket 2 according to the first embodiment. Thus, the first bracket 7 is inferior in terms of increasing the spring constant, but realizes actions and effects identical to those of the first bracket 2 with respect to movement in the cross-sectional direction, including the left-right direction and the longitudinal movement of the guide rail 1 under its weight.

[0024] Next, the second bracket 8 serving as a second holding portion is formed with a mounting side 8a that is brought into contact with a mounting side 7a of the first bracket 7 and fixed thereto, a through hole 8e provided in the mounting side 8a, lateral side portions 8b extending from respective ends of the mounting side 8a in a direction substantially perpendicular to the upper side 4a of the rail bracket, and a protrusion portion 8d extending from one side of each lateral side portion 8b so as to protrude from the mounting side 8a, and has a height substantially identical to the lateral portion of the rail flange portion 1a on the side of a contact portion 8c that contacts the inclined side 1b near the lateral portion of the rail flange portion 1a.Furthermore, the second bracket 8 is formed from a bent steel plate having a C-shaped cross section and is set to have a larger spring constant than the first bracket 7. In other words, this means that the rigidity of the second bracket 8 is increased and that the second bracket 8 is therefore less likely to deform in response to an external load.

[0025] The second bracket 3 according to the first embodiment cannot contact the lateral side of the guide rail flange portion 1a because the contact portion 2b of the first bracket 2 contacts the upper portion of the lateral side of the guide rail flange portion 1a and the corner portion near it. Accordingly, the second bracket 3 is fixed to the guide rail flange portion 1a via the first bracket 2. Furthermore, when the second bracket 3 is fixed to the guide rail flange portion 1a, the first bracket 2 serves as the contacted portion, making position adjustment difficult.

[0026] A contact portion 7c embedded in the second bracket 8 so as to contact the cutout portion 8f is provided on a side of the first bracket 7 opposite to the contact portion 7b. The cutout portion 8f is formed in a vertical direction in a lateral side of the mounting side 8a on the guide rail flange portion 1a side so as to avoid the protrusion portion 8d and the contact portion 8c. A width of the cutout portion 8f in a horizontal direction is set greater than or equal to a thickness of the first bracket 7. A vertically directed height of the cutout portion 8f is set greater than or equal to a vertically directed height of the first bracket 7.

[0027] The first bracket 7 is configured such that the contact portion 7b contacts the upper portion of a lateral side of the guide rail flange portion 1a and the corner portion near it, the contact portion 7c is embedded in the cutout portion 8f of the second bracket 8, and the second bracket 8 is laminated and fixed thereon from the upper portion of the mounting side 7a.

[0028] Here, the contact portion 7c of the first bracket 7 is fitted into the cutout portion 8f of the second bracket 8, and therefore, the first bracket 7 does not protrude to the contact portion 8c side of the second bracket 8 when viewed from a vertical projection plane. Thus, when the second bracket 8 is laminated on the first bracket 7 and fixed to the guide rail flange portion 1a, the contact portion 8c can contact the upper portion of the lateral side of the guide rail flange portion 1a and the corner portion near it. As a result, the second bracket 8 can be guided along the upper portion of the lateral side of the guide rail flange portion 1a.

[0029] The essential contact portion 3c of the second bracket 3 according to the first embodiment is provided either in contact with or near the inclined side 1b of the guide rail flange portion 1a. Therefore, depending on the size of the guide rail 1 and the height of the inclined side 1b, the protruding portion 3d of the second bracket 3 may not fit the lateral side portion of the guide rail flange portion 1a. Furthermore, even if the protruding portion 3d of the second bracket 3 fits the lateral side portion of the guide rail flange portion 1a, if the friction therebetween is excessively large, longitudinal sliding of the guide rail 1 is inhibited more than necessary.In the second embodiment, therefore, a predetermined gap is formed by making the height of the lower end of the protruding portion 8d of the second bracket 8 larger than the height of the inclined side 1b of the guide rail 1, and as a result, the two components are fixed without contacting each other.

[0030] The protrusion portion 8d is fixed so that it does not contact the inclined side 1b of the guide rail 1 under normal circumstances. When the guide rail 1 is displaced in the front-to-back direction (the falling direction) by the action of a load such as an earthquake, the guide rail 1 is set at a fixed inclination through the gap between the guide rail 1 and the protrusion portion 8d of the second bracket 8, with the inclined side 1b contacting the protrusion portion 8d. As a result, the load acting on the guide rail 1 in the front-to-back direction is absorbed by the protrusion portion 8d, thereby preventing the guide rail 1 from falling.

[0031] According to the second embodiment, as described above, by forming the first bracket 7 to have a substantially S-shaped cross section, the workability thereof can be improved compared with a case where the first bracket 7 is formed to have a Z-shaped cross section. Furthermore, the distance from the contact portion 7b to the contact portion 7d can be increased, and therefore, permanent deformation of the first bracket 7 due to displacement of the guide rail flange portion 1a in a height direction can be suppressed, and the spring constant of the bracket can be reduced.

[0032] Furthermore, by forming the cutout portion 8f in the longitudinal direction on the guide rail 1 side of the second bracket 8 and bringing the contact portion 7c, which has a substantially S-shaped cross section, of the first bracket 7 into contact with the cutout portion 8f to be held thereby, the upper portion of the lateral side of the guide rail flange portion 1a and the corner portion near it serve as contacted portions when the second bracket 8 is attached to the guide rail flange portion 1a, and therefore the second bracket 8 can be guided along the guide rail flange portion 1a. As a result, position adjustment can be easily implemented.

[0033] Furthermore, by forming the contact portion 8c contacting the guide rail flange portion 1a on the respective sides of the cutout portion 8f of the second bracket 8, and by forming the protrusion portion 8d to protrude from the contact portion 8c toward the guide rail flange portion 1a without contacting the guide rail flange portion 1a in the front-rear direction under normal circumstances, the protrusion portion 8d of the second bracket 8 can be fixed without preventing longitudinal sliding of the guide rail 1 more than necessary, and falling of the guide rail 1 in the front-rear direction can be prevented when the protrusion portion 8d is fitted and fixed onto the lateral side portion of the guide rail flange portion 1a.

[0034] It should be noted that in the second embodiment, the first bracket 7 is formed from a bent steel plate having a substantially S-shaped cross section, but it could be formed from a Z-shaped bent steel plate. More specifically, by forming the first bracket 7 from a bent steel plate having a Z-shaped cross section, the workability deteriorates compared with a case where the first bracket 7 is formed from a substantially S-shaped bent steel plate, but the actions and effects by which the first bracket 7 contacts the guide rail 1 with a predetermined pressing force to at least limit a longitudinal movement of the guide rail 1 under its weight while allowing the guide rail 1 to slide relative to the rail bracket 4 in the longitudinal direction are improved. List of reference symbols 1 guide rail 1a Guide rail flange section 1b Inclined side or surface 2, 7 First bracket or clamp 2a, 3a, 7a, 8a Mounting side or surface 2b, 2d, 7b, 7d, 7c, 8c contact section 2c Extension side or surface 2nd, 3rd, 8th through hole 3, 8 Second clamp or clamp 3b, 8b Lateral section 3c Essential contact section 3d, 8d projection section 4 rail mount 4a Upper side of the rail bracket 5 tension bolts or screws 6 tension nut 8f cutout section Commercial applicability

[0035] This invention relates to a device for fastening a guide rail of an elevator to a shaft via a rail support provided in the shaft.

Claims

[1] Elevator guide rail holding device for holding a guide rail (1) comprising a guide rail flange portion (1a) with an inclined surface (1b) and installed in a shaft of an elevator, comprising: a rail support (4) provided in the shaft of the elevator such that the guide rail (1) is fixed thereto; a first holding portion (2, 7) provided on the rail support (4) and contacting the guide rail (1) with a predetermined contact force so as to limit at least a longitudinal movement of the guide rail under its weight while allowing the guide rail (1) to slide in the longitudinal direction relative to the rail support (4); and a second holding portion (3, 8) which restricts movement of the guide rail (1) in a cross-sectional direction or in a falling direction, but does not restrict sliding thereof in the longitudinal direction, wherein the first holding section (2, 7) is layered between the second holding section (3, 8) and the rail holder (4), wherein the first holding portion (2, 7) is formed to have a Z-shaped cross-section or a substantially S-shaped cross-section, and comprises first and second contact portions (2b, 2d; 7b, 7d), wherein the first contact portion (2b; 7b) is configured to contact an upper portion of a side surface of the guide rail flange portion (1a), and the second contact portion (2d; 7d) is configured to contact the inclined surface (1b) of the guide rail flange portion (1a) in a vicinity of a base of the guide rail (1), so that the guide rail flange portion (1a) is contacted and held by two points, namely by the first contact portion (2b; 7b) and the second contact portion (2d; 7d). [2] An elevator guide rail holding device for holding a guide rail (1) comprising a guide rail flange portion (1a) with an inclined surface (1b) and installed in a shaft of an elevator, comprising: a rail support (4) provided in the shaft of the elevator such that the guide rail (1) is fixed thereto; a first holding portion (2, 7) provided on the rail support (4) and contacting the guide rail (1) with a predetermined contact force so as to limit at least a longitudinal movement of the guide rail (1) under its weight while allowing the guide rail (1) to slide in the longitudinal direction relative to the rail support (4); and a second holding portion (3, 8) which restricts movement of the guide rail (1) in a cross-sectional direction or in a falling direction, but does not restrict sliding thereof in the longitudinal direction, wherein the second holding section (3, 8) is layered between the first holding section (2, 7) and the rail holder (4), wherein the first holding portion (2, 7) is formed to have a Z-shaped cross-section or a substantially S-shaped cross-section, and comprises first and second contact portions (2b, 2d; 7b, 7d), wherein the first contact portion (2b; 7b) is configured to contact an upper portion of a side surface of the guide rail flange portion (1a), and the second contact portion (2d; 7d) is configured to contact the inclined surface (1b) of the guide rail flange portion (1a) in a vicinity of a base of the guide rail (1), so that the guide rail flange portion (1a) is contacted and held by two points, namely by the first contact portion (2b; 7b) and the second contact portion (2d; 7d). [3] The elevator guide rail holding device according to claim 1 or 2, wherein a spring constant based on a shape of the first holding portion (2, 7) is smaller than a spring constant based on a shape of the second holding portion (3, 8). [4] Elevator guide rail holding device according to one of claims 1 to 3, wherein the second holding portion (3, 8) is formed to have a C-shaped cross section. [5] The elevator guide rail holding device according to any one of claims 1 to 4, further comprising a cutout portion (8f) provided in the longitudinal direction on the guide rail side (1) of the second holding portion (8) such that the Z-shaped or substantially S-shaped part of the first holding portion (7) contacts the cutout portion (8f) and is held thereby. [6] Elevator guide rail holding device according to one of claims 1 to 5, further comprising: a contact portion (8c) provided on each side of the cutout portion (8f) of the second holding portion (8) so as to contact the flange portion (1a) of the guide rail (1); and a protrusion portion (8d) which protrudes from the contact portion (8c) toward the flange portion (1a) of the guide rail (1) and which does not contact the flange portion (1a) of the guide rail (1) in a front-to-back direction under normal circumstances.

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