Fall to prevent bending by hand

Abstract

To provide a fall prevention handrail whose body can be removed in a short time. [Solution] A pair of brackets 2 are attached between opposing surfaces. The handrail body 3 is supported between the pair of brackets 2 by inserting it into the pair of brackets 2 from above. Cover members 4 are provided at both ends of the handrail body 3 so as to cover the pair of brackets 2. The cover members 4 are provided with notches 42 so that when the handrail body 3 is lifted upward, the cover members 4 cover the brackets 2 and the brackets 2 release their support for the handrail body 3.

Description

Technical Field

[0001] The present invention relates to a handrail for preventing falls.

Background Art

[0002] As a conventional handrail for preventing falls, the one described in Patent Document 1 is known. The handrail for preventing falls described in this Patent Document 1 is such that a handrail member is sandwiched between handrail member sandwiching portions forming a U-shaped groove of a fixing fitting from above the fixing fitting, and decorative covers are provided at both ends thereof.

Prior Art Document

Patent Document

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in the case of a handrail for preventing falls as described above, in an emergency, when a fire brigade or the like enters the room from the outside using a ladder, it must be made possible to remove it in a short time.

[0005] However, in the case of a handrail for preventing falls as described above, when attempting to remove it, since the decorative covers are removed from both ends and then, finally, the handrail member can be removed, there is a problem that the removal work takes time.

[0006] Therefore, in view of the above problems, an object of the present invention is to provide a handrail for preventing falls that can remove the handrail main body in a short time.

Means for Solving the Problems

[0007] The object of the present invention described above is achieved by the following means. The reference numerals in parentheses indicate the embodiments described later, but the present invention is not limited thereto.

[0008] According to the invention of claim 1, a pair of brackets (2) are attached between opposing surfaces, By inserting the pair of brackets (2) from above into the pair of brackets (2), the handrail body (3) is supported between the pair of brackets (2), The handrail body (3) has cover members (4) provided at both ends so as to cover the pair of brackets (2), The cover member (4) is characterized in that at least one of the cover members (4) is provided with a notch (42) such that when the handrail body (3) is lifted upward, the one cover member (4) covers the bracket (2), and the bracket (2) releases its support for the handrail body (3).

[0009] According to the invention of claim 2, in the fall prevention handrail (1) described in claim 1, the bracket (2) is provided with a fitting projection (first projection 2b1), The cover member (4) is provided with a fitting portion (41) that can be fitted onto the fitting projection (first projection 2b1), The handrail body (3) is characterized by being provided with grooves (left notched groove 3b1, right notched groove 3c1) into which the fitting projection (first projection 2b1) can be inserted.

[0010] According to the invention of claim 3, in the fall prevention handrail (1) described in claim 1 or 2, the bracket (2) is provided with a projection (second projection 2c1) that prevents the handrail body (3) from rattling when the handrail body (3) is supported. [Effects of the Invention]

[0011] Next, the effects of the present invention will be described with reference to the reference numerals in the drawings. Note that the reference numerals in parentheses are those of embodiments described later, but the present invention is not limited thereto.

[0012] According to the invention of claim 1, at least one of the cover members (4) is provided with a notch (42) such that when the handrail body (3) is lifted upward, the bracket (2) can release its support for the handrail body (3) while the cover member (4) is covering the bracket (2). This makes it possible to remove the handrail body (3) from the pair of brackets (2) without having to remove the cover members (4) at both ends, unlike in the conventional invention.

[0013] Therefore, according to the present invention, the handrail body (3) can be removed in a shorter time compared to conventional methods.

[0014] According to the invention of claim 2, the cover member (4) is provided with a fitting portion (41) that can be fitted onto a fitting projection (first projection 2b1) provided on the bracket (2), so that the cover members (4) can be securely attached to both ends of the handrail body (3) so as to cover the pair of brackets (2).

[0015] According to the invention of claim 3, the bracket (2) is provided with a projection (second projection 2c1) that prevents the handrail body (3) from rattling when the handrail body (3) is supported, so that the handrail body (3) does not rattle when the handrail body (3) is supported. [Brief explanation of the drawing]

[0016] [Figure 1] This is a plan view showing a fall prevention handrail according to one embodiment of the present invention installed between opposing surfaces of a picture frame. [Figure 2] The bracket according to the same embodiment is shown, where (a) is a plan view, (b) is a side view, and (c) is a bottom view. [Figure 3]The handrail main body according to the same embodiment is shown, where (a) is a front view and (b) is a side view. [Figure 4] The cover member according to the same embodiment is shown, where (a) is a plan view, (b) is a side view seen from the front end side of (a), and (c) is a side view seen from the rear end side of (a). [Figure 5] (a) is a perspective view simply showing the state where the anti-fall handrail according to the same embodiment is attached between the opposing surfaces of the picture frame, and (b) is a perspective view showing the state where the cover member located on the right side in the illustration is slid and moved from the state shown in (a). [Figure 6] (a) is a perspective view showing the state where the handrail main body is lifted upward from the state shown in Fig. 5(b), and (b) is a perspective view showing the state where the handrail main body is moved in the upper right direction from the state shown in (a).

Mode for Carrying Out the Invention

[0017] Hereinafter, the anti-fall handrail according to an embodiment of the present invention will be specifically described with reference to the drawings. In the following description, when indicating the up-down, left-right directions, it shall refer to the up-down, left-right as seen from the front in the illustration.

[0018] <Schematic Explanation of Anti-Fall Handrail> The anti-fall handrail according to the present embodiment is one that can remove the handrail main body in a short time. Specifically described, as shown in Fig. 1, the anti-fall handrail 1 is composed of a bracket 2, a handrail main body 3, and a cover member 4. Each component will be described below.

[0019] <Explanation of Bracket> The bracket 2 is formed of stainless steel or the like, and is formed in an inverted U-shape in side view as shown in Fig. 2(b). As shown in Fig. 2(b), a screw insertion hole 2a1 is provided at substantially the central position on the right side surface 2a of the bracket 2, penetrating in the left-right direction. Note that a pair of these screw insertion holes 2a1 are provided at intervals in the up-down direction in plan view shown in Fig. 2(a) and in the up-down direction in bottom view shown in Fig. 2(c).

[0020] On the other hand, as shown in Figure 2(b), a semi-ring shaped first projection 2b1 is provided on the lower surface 2b of the bracket 2, projecting outward from the right side surface 2a. This first projection 2b1 is located approximately in the center of the bottom surface 2b of the bracket 2 in the vertical direction when viewed from the bottom, as shown in Figure 2(c).

[0021] On the other hand, as shown in Figure 2(b), a semicircular second projection 2c1 is provided on the upper surface 2c of the bracket 2, on the left side 2d, projecting outward by doweling or other means. As shown in Figure 2(a), a pair of these second projections 2c1 are provided on the upper surface 2c of the bracket 2, spaced apart in the vertical direction in a plan view.

[0022] <Description of the handrail itself> The handrail body 3 is made of aluminum or the like, and as shown in Figure 3(a), it is formed in a horizontally elongated rectangular shape when viewed from the front. Furthermore, as shown in Figure 3(b), the handrail body 3 is formed with a hollow interior, and its bottom surface 3a is cut out and open. In addition, as shown in Figure 3(a), a vertically elongated, nearly rectangular left cutout groove 3b1 is formed on the left side 3b of the handrail body 3, extending from approximately the center toward the bottom surface 3a. Furthermore, as shown in Figure 3(a), a vertically elongated, nearly rectangular right cutout groove 3c1 is formed on the right side 3c of the handrail body 3, extending from approximately the center toward the bottom surface 3a.

[0023] <Explanation of cover components> The cover member 4 is made of resin or the like, and as shown in Figure 4(a), it is formed in a trapezoidal shape when viewed from the front. Furthermore, as shown in Figures 4(b) and 4(c), the inside is hollow. In addition, as shown in Figure 4(b), reinforcing ribs 40, which are rectangular in shape when viewed from the side, are integrally provided on the inner circumferential surface of the cover member 4 at regular intervals, extending from the left side surface 4a to the top surface 4b, and from the left side surface 4a to the bottom surface 4c of the cover member 4. As shown in Figure 4(a), these reinforcing ribs 40 extend from the front end surface 4e to the rear end surface 4f of the cover member 4 and mainly serve to reinforce the cover member 4. The diameter of the inner circumferential surface (inner diameter) of the cover member is formed to be larger than the outer diameter of the handrail body 3.

[0024] On the other hand, as shown in Figures 4(b) and 4(c), no reinforcing ribs 40 are provided on the inner circumferential surface of the right side 4d of the cover member 4. As shown in Figure 4(c), a concave fitting portion 41 that can be fitted into the first projection 2b1 described above is provided at approximately the center.

[0025] On the other hand, as shown in Figures 4(b) and 4(c), the lower surface 4c of the cover member 4 is provided with a pair of notches 42 on the right side surface 4d, extending from the front end surface 4e shown in Figure 4(a) to the rear end surface 4f. These notches 42 are formed in an inverted concave shape, as shown in Figures 4(b) and 4(c), and are provided so as not to penetrate the inner and outer circumferential surfaces of the cover member 4. As a result, the thickness of the cover member 4 is thinner in the portion with these pair of notches 42 compared to the rest of the cover member 4.

[0026] The above explanation concerns the configuration of the fall prevention handrail 1.

[0027] <Instructions on how to install fall prevention handrails> Next, we will explain how to install the fall prevention handrail 1, which is configured as described above.

[0028] As shown in Figure 1, a pair of vertical frames TA that constitute a sash frame SW are installed between the wall surfaces W to which the exterior wall GW is attached, and a sash window S is attached to this pair of vertical frames TA. Furthermore, as shown in Figure 1, a frame F is provided on the interior side of the sash frame SW so as to face it.

[0029] Thus, the fall prevention handrail 1 according to this embodiment is installed between opposing surfaces of the picture frame F, as shown in Figure 1. This point will be explained in detail below.

[0030] First, attach and secure the bracket 2 shown in Figure 2 to the picture frame F. That is, as shown in Figure 1, the pair of brackets 2 are positioned opposite each other so that they appear U-shaped in plan view. In this state, insert the screws B1 through the screw insertion holes 2a1 shown in Figure 2 and attach them to the picture frame F. As a result, the pair of brackets 2 are attached and secured to the picture frame F in the opposite position as shown in Figure 1.

[0031] Next, the handrail body 3 shown in Figure 3 is inserted into the pair of brackets 2 from above (in the opposite direction to the arrow Y2 shown in Figure 6(a)). At this time, as shown in Figure 3(b), since the handrail body 3 is formed with a hollow interior, the pair of brackets 2 can be inserted into the handrail body 3. As a result, as shown in Figure 1, the left side 3b and the right side 3c of the handrail body 3 are supported by the pair of brackets 2 attached to the frame F in an opposing position. Thus, as shown in Figure 1, the handrail body 3 is supported between the pair of brackets 2. Note that the first projections 2b1 of the pair of brackets 2 attached to the frame F in an opposing position protrude to the front side as shown in Figures 5(a) and 6. Therefore, in this embodiment, in order to prevent a situation in which the left side 3b and right side 3c of the handrail body 3 are not supported by the pair of brackets 2 due to obstruction by the first projection 2b1, the handrail body 3 is formed with a left notch groove 3b1 and a right notch groove 3c1 as shown in Figure 3. That is, when the handrail body 3 shown in Figure 3 is inserted into the pair of brackets 2 from above (opposite direction to the arrow Y2 direction shown in Figure 6(a)), as shown in Figure 5(b), the first projection 2b1 is located in the right notch groove 3c1 of the handrail body 3, and furthermore, although not shown, the first projection 2b1 is also located in the left notch groove 3b1 of the handrail body 3 (see Figure 3(a)). Therefore, the pair of brackets 2 can be inserted into the handrail body 3 without obstruction by the first projection 2b1.

[0032] Next, as shown in Figure 1, the cover members 4 shown in Figure 4 are attached to the left side 3b and right side 3c of the handrail body 3, respectively, so as to cover the pair of brackets 2. Specifically, although not shown in the figures, the cover members 4 shown in Figure 4 are attached to the left side 3b and right side 3c of the handrail body 3, respectively, before inserting the pair of brackets 2 into the handrail body 3. That is, as shown in Figures 4(b) and 4(c), the cover members 4 are formed with a hollow interior and an inner diameter larger than the outer diameter of the handrail body 3, so that the cover members 4 shown in Figure 4 can be inserted to the left side 3b and right side 3c of the handrail body 3, respectively. At this time, as shown in Figure 5(b), the cover members 4 are attached to the left side 3b and right side 3c of the handrail body 3 so as to be slidable in the longitudinal direction (left-right direction in the figure) of the handrail body 3. Furthermore, when the cover members 4 are attached to the left side 3b and right side 3c of the handrail body 3, the reinforcing ribs 40 shown in Figure 4 are in contact with the outer surface of the handrail body 3.

[0033] Thus, with the cover members 4 shown in Figure 4 attached to the left side 3b and right side 3c of the handrail body 3, respectively, they are inserted into the pair of brackets 2 from above (in the opposite direction to the arrow Y2 shown in Figure 6(a)). Then, by sliding the cover member 4 located on the left side as shown in Figure 1 to the left, and then sliding the cover member 4 located on the right side as shown in Figure 1 to the right, the handrail body 3 is supported between the pair of brackets 2, and the cover members 4 can be attached to the left side 3b and right side 3c of the handrail body 3 so as to cover the pair of brackets 2, respectively.

[0034] Therefore, as described above, the fall prevention handrail 1 according to this embodiment will be attached between opposing surfaces of the picture frame F, as shown in Figure 1.

[0035] By the way, when the cover member 4 located on the left side as shown in Figure 1 is slid to the left, and the cover member 4 located on the right side as shown in Figure 1 is slid to the right, the first projection 2b1 shown in Figures 5(a) and 6 is fitted into the fitting portion 41 of the cover member 4 shown in Figure 4(c). As a result, the cover member 4 can be securely attached to the left side 3b and right side 3c of the handrail body 3, respectively, so as to cover the pair of brackets 2. Therefore, the fall prevention handrail 1 is securely attached between the opposing surfaces of the frame F in the front-to-back direction as shown in Figure 5(a). Furthermore, if the cover member 4 is made of an elastic resin, the fitting portion 41 of the cover member 4 shown in Figure 4(c) can be securely fitted into the first projection 2b1 shown in Figures 5(a) and 6. Therefore, if the cover member 4 is made of an elastic resin, the fall prevention handrail 1 can be attached more securely between the opposing surfaces of the frame F shown in Figure 1.

[0036] Furthermore, as shown in Figure 1, when the left side 3b and right side 3c of the handrail body 3 are supported by a pair of brackets 2 attached to the frame F in an opposing configuration, the first projection 2b1 shown in Figure 2 comes into contact with the inner circumferential surface of the handrail body 3. This prevents the handrail body 3 from rattling in the front-to-back direction as shown in Figure 5(a). In this way, the fall prevention handrail 1 can be more securely attached between the opposing surfaces of the frame F shown in Figure 1.

[0037] The above describes the method for installing the fall prevention handrail 1.

[0038] <Instructions on how to remove the fall prevention handrail> Next, we will explain how to remove the fall prevention handrail 1, which is configured as described above.

[0039] In an emergency, when firefighters or other personnel enter a room from the outside using a ladder, they will break the sash window S shown in Figure 1, remove the handrail body 3 of the fall prevention handrail 1, and then enter the room. At this time, after breaking the sash window S shown in Figure 1, the firefighters will slide one of the pair of cover members 4 of the fall prevention handrail 1, which is attached between opposing surfaces of the frame F (in the illustration, the cover member 4 located on the right), in the direction of arrow Y1, as shown in Figure 5(b), to release the engagement between the first projection 2b1 shown in Figure 5(b) and the fitting portion 41 of the cover member 4 shown in Figure 4(c). If the cover member 4 is made of an elastic resin, the engagement between the first projection 2b1 shown in Figure 5(b) and the fitting portion 41 of the cover member 4 shown in Figure 4(c) can be easily released, and the cover member 4 can be slid in the direction of arrow Y1.

[0040] Next, as shown in Figure 6(a), the fire department or other personnel lift the handrail body 3 upward (in the direction of arrow Y2 shown in Figure 6(a)) on the right notched groove 3c1 side of the handrail body 3, that is, the side where the fitting portion 41 of the cover member 4 shown in Figure 4(c) is released from the first projection 2b1 shown in Figure 5(b) and the handrail body 3 is released. As a result, as shown in Figure 6(a), the insertion of the handrail body 3 into the bracket 2 located on the right side of the illustration is released. Furthermore, as shown in Figure 6(a), when the handrail body 3 is lifted upward, the lower surface 4c of the cover member 4 located on the left side of the illustration comes into contact with the lower surface of the bracket 2 shown in Figure 6(b). In this case, as shown in Figures 4(b) and 4(c), the lower surface 4c of the cover member 4 is provided with a pair of notches 42 in which the thickness of the cover member 4 is reduced in that area. Upon contact, the lower surface 4c of the cover member 4 tears from one or both of the pair of thin notches 42, and the lower surface 4c of the cover member 4 opens from the closed state shown in Figures 4(b) and 4(c). Thus, when the lower surface 4c of the cover member 4 located on the left side as shown in Figure 6(a) is opened, as shown in Figure 6(b), if the handrail body 3 is moved in the upper right direction (arrow Y3 direction), the insertion of the handrail body 3 into the left notch groove 3b1 side of the bracket 2 located on the left side as shown in Figure 6(b) is released without being obstructed by the cover member 4 located on the left side as shown in Figure 6(b). Furthermore, as shown in Figure 6(b), the handrail body 3 is moved in the upper right direction (arrow Y3 direction), so the cover member 4 located on the left side of the figure will naturally fall from the handrail body 3 due to gravity.

[0041] Therefore, according to this embodiment described above, unlike the conventional method, it is not necessary to remove the cover members 4 at both ends, but to slide only one of the pair of cover members 4 of the fall prevention handrail 1 attached between the opposing surfaces of the picture frame F, and then move the handrail body 3 upward. This allows the handrail body 3 to be removed from the pair of brackets 2.

[0042] Therefore, according to this embodiment, the handrail body 3 can be removed in a shorter time compared to the conventional method.

[0043] <Explanation of variations> It should be noted that the shapes and other features shown in this embodiment are merely examples, and various modifications and changes are possible within the scope of the gist of the present invention as described in the claims. For example, in this embodiment, an example is shown in which the notches 42 are provided in both of the pair of cover members 4, but it is also acceptable to provide the notches 42 in only one of the cover members 4. However, it is preferable to provide the notches 42 in both of the pair of cover members 4. This is because it is unclear which of the pair of cover members 4 will be slid by the fire department, etc., as shown in Figure 5(b). Therefore, it is preferable to provide the notches 42 in both of the pair of cover members 4.

[0044] Furthermore, in this embodiment, an example is shown in which a notch 42 is provided on the lower surface 4c of the cover member 4. However, as explained above, the notch can be provided at any location on the cover member 4 as long as a part of the cover member 4 can be torn and the handrail body 3 can be removed from the pair of brackets 2. Moreover, in this embodiment, an example is shown in which a pair of notches 42 are provided so as not to penetrate from the outer peripheral surface side to the inner peripheral surface side of the cover member 4. However, a pair of notches 42 may also be provided so as not to penetrate from the inner peripheral surface side to the outer peripheral surface side. Furthermore, in this embodiment, an example is shown in which a pair of notches 42 are provided. However, the number of notches 42 may be one or three or more.

[0045] Furthermore, in this embodiment, an example is shown in which one of the pair of cover members 4 is slid forward as shown in Figure 5(b). However, if there are no safety concerns, the pair of cover members 4 may be provided with notches so that the handrail body 3 can be removed from the pair of brackets 2 simply by lifting the handrail body 3 upward, without the need for sliding. [Explanation of Symbols]

[0046] 1 Handrail to prevent falling 2 brackets 2b1 1st protrusion (fitting protrusion) 2c1 2nd protrusion (protrusion) 3. Handrail body 3b1 Left notch groove (groove) 3c1 Right notch groove (groove) 4 Cover component 41 Fitting part 42 cuts

Claims

1. A pair of brackets mounted between opposing surfaces, By inserting the pair of brackets from above into the pair of brackets, the handrail body is supported between the pair of brackets, The handrail body has cover members provided at both ends so as to cover the pair of brackets, A fall prevention handrail having a notch in at least one of the cover members, such that when the handrail body is lifted upward, the one cover member covers the bracket, and the bracket releases its support for the handrail body.

2. The bracket is provided with a fitting projection, The cover member is provided with a fitting portion that can be fitted into the fitting projection. The handrail for preventing falls according to claim 1, wherein the handrail body is provided with a groove into which the fitting projection can be inserted.

3. The handrail for preventing falls according to claim 1 or 2, wherein the bracket is provided with a projection that prevents the handrail body from rattling when the handrail body is supported.

Images