JP2005009196A - Handrail bracket - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a handrail bracket which can simplify the separation and remounting of a handrail by rapidly fixing/unfixing a bracket body to/from a base without requiring the use of a screw or a fastening tool. <P>SOLUTION: This handrail bracket comprises the base 1 which is fastened and fixed to a wall surface, the bracket body 2 which is separably engaged with and mounted on the base 1, and a lock ring 3 which is mounted on the base 1 so as to unseparably lock and hold the bracket body 2. The base 1 and the bracket body 2 are engaged and connected with a connecting shaft 20 which is provided in the bracket body 2, via a connecting hole 10 which is provided in a boss 7 of the base 1. In the handrail bracket, the connecting shaft 20 is unseparably engaged and fixed by means of a bayonet structure which is provided among the base 1, the bracket body 2 and the lock ring 3. Thus, the bracket body 2 can be attached/detached only by displacing the lock ring 3 between a locking position and an unlocking position in a reciprocating manner. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a handrail bracket including a base fixed to a wall surface and the like, and a bracket body that is detachably attached to the base.
[0002]
[Prior art]
A handrail bracket including a base and a bracket body that is detachably attached to the base is known (see Patent Document 1). There, the bracket body is engaged and mounted on a base fastened and fixed to a wall surface, and both are fastened and fixed so as not to be separated by screws. In a handrail bracket of the same type, a handrail bracket is also proposed in which an uneven fitting structure is provided between the bracket main body and the base, and in a temporarily assembled state, the two are engaged so as not to be relatively rotatable (see Patent Document 2). .
[0003]
[Patent Document 1]
Japanese Patent No. 3342473 (paragraph number 0018, FIG. 2)
[Patent Document 2]
JP 2003-41736 A (paragraph number 0010, FIG. 4)
[0004]
[Problems to be solved by the invention]
According to the handrail brackets of Patent Documents 1 and 2, the handrail bar can be removed from the wall surface or attached to the base while a plurality of bracket bodies are mounted, so that furniture can be carried in and out, When replacing the wallpaper, it is possible to save the trouble of attaching and detaching the handrail. However, since the bracket body is fastened to the base with screws, when attaching or detaching the handrail, it is necessary to tighten and tighten the screws by the number of bracket bodies fixed to one handrail bar. It still takes a lot of work.
[0005]
There are handrail brackets for wall surfaces, headboards, corners, rod end support, etc., but each is often configured as a dedicated bracket, which also contributed to the increased cost of each handrail bracket .
[0006]
An object of the present invention is to provide a handrail bracket that can quickly fix and release the bracket body from the base without using screws or fastening tools, and thus can easily separate and reattach the handrail. . An object of the present invention is to provide a handrail bracket that can reduce the overall cost required to construct a handrail by using a base in common for handrail brackets for wall surfaces, headboards, corners, and rod ends. .
[0007]
[Means for Solving the Problems]
The handrail bracket of the present invention includes a base 1 that is fastened and fixed to a mounting surface, a bracket body 2 that is detachably engaged with the base 1, and a bracket 1 that is mounted on the base 1 so that the bracket body 2 cannot be separated. And a lock ring 3 to be held. The base 1 and the bracket body 2 are engaged and connected via a connecting shaft 20 and a connecting hole 10 which are provided between the joint surfaces of the two 1 and 2 and engage with each other. The lock ring 3 is supported by the base 1 so as to be reciprocally movable between a lock position and an unlock position. The bracket body 2 engaged and connected to the base 1 is engaged and fixed inseparably with a bayonet structure provided between the base 1, the bracket body 2, and the lock ring 3 (Claim 1).
[0008]
A positioning structure is provided between the base 1 and the bracket body 2 so as to be fitted and engaged with each other so as to fix and hold the bracket body 2 in a non-rotatable manner.
[0009]
The lock ring 3 is rotatably supported by a boss 7 projecting from the outer surface of the base 1. A connecting hole 10 for receiving a connecting shaft 20 provided in the bracket body 2 is formed on the inner surface of the cylindrical wall of the boss 7. The bayonet structure includes a circumferential guide groove 12 formed on the cylindrical wall of the boss 1, a lock pin 31 that protrudes from the inner surface of the lock ring 3 and protrudes from the guide groove 12 to the inner surface of the connection hole 20, A lock groove 24 formed along the peripheral surface of the connecting shaft 10 and engaged with the lock pin 31 is included. In a state in which the lock ring 3 is rotated from the unlock position to the lock position, the lock pin 31 engages with the lock groove 24 so that the bracket body 2 can be fixedly held in a non-separable manner (claim 3).
[0010]
The outer surface of the connecting portion between the base 1 and the bracket body 2 is covered with a cap 4 that is non-rotatably engaged and fixed to the base 1 and the bracket body 2, and the lock ring 3 and the cap 4 incorporated in the base 1 A stopper mechanism that prevents rotation of the lock ring 3 in the slack direction can be provided between the two.
[0011]
A connecting shaft 20 provided on the bracket body 2 for wall surface, a connecting shaft 20A provided on the bracket body 2A for caps, a connecting shaft 20B provided on the bracket body 2B for supporting rod ends, and a bracket body 2C for corners. The base shaft 1 and the lock ring 3 can be used in common with the bracket bodies 2, 2 A, 2 B, and 2 C (Claim 5).
[0012]
[Effects of the invention]
In the present invention, the bracket body 2 has a bayonet structure including the lock ring 3 after the bracket body 2 is engaged and connected to the base 1 that is fastened and fixed to the wall surface or the like via the connection shaft 20 and the connection hole 10. Since the bracket can be locked and fixed so as not to be separable, the bracket body 2 can be fixed to and released from the base 1 by one-touch operation only by switching the lock ring 3 between the lock position and the unlock position. Therefore, compared to the conventional handrail structure in which the bracket body needs to be fastened and fixed to the base with a screw, the bracket body 2 can be fastened and unfastened quickly without using screws or fastening tools. A handrail bracket that can be easily separated and reattached can be provided.
[0013]
According to the handrail bracket provided with the positioning structure between the base 1 and the bracket main body 2, the bracket main body 2 is fitted via the connecting shaft 20 and the connecting hole 10 in a state where the bracket main body 2 is temporarily assembled to the base 1. Further, since it is supported and fixed and held in a non-rotatable manner by the positioning structure, it is not necessary to support and hold the bracket body 2 in a non-rotatable manner when the lock ring 3 is locked. The bracket body 2 can be easily fixed (Claim 2).
[0014]
The guide groove 12 formed on the cylindrical wall of the boss 1, the lock pin 31 protruding from the inner surface of the lock ring 3, and the lock groove 24 formed on the peripheral surface of the connecting shaft 20 constitute a bayonet structure, and the lock ring 3 According to the handrail bracket in which the lock pin 31 is engaged with the lock groove 24 so that the bracket body 2 can be fixedly held in a non-separable manner by rotating the lever from the unlock position to the lock position. The structure can be simplified and the overall cost of the handrail bracket can be reduced accordingly. For example, the connecting shaft 20 can be provided on the base 1 side, the connecting hole 10 can be provided on the bracket body 2 side, and the bracket body 2 can be connected to the base 1. In this case, the lock ring 3 is attached to the base 1. Since an extra structure for supporting the shaft so that it can be rotated is required, the total cost of the handrail bracket increases accordingly, but this disadvantage does not occur.
[0015]
According to the handrail bracket, the outer surface of the connecting portion between the base 1 and the bracket body 2 is covered with the cap 4, and a stopper mechanism is provided between the lock ring 3 and the cap 4 to prevent the lock ring 3 from rotating in the slack direction. For example, since the stopper mechanism can prevent the lock ring 3 from rotating in the slack direction due to external vibration, it is ensured that the lock ring 3 switches to the unlocked state unless there is a clear intention of the user. Can be prevented. Therefore, it is possible to reliably prevent the connecting shaft 20 from falling off the boss 7 even during long-term use.
[0016]
When the base 1 can be used in common for the bracket body 2 for wall surface, the bracket body 2A for headboard, the bracket body 2B for rod end support, and the bracket body 2C for corner, Since the number of components of the handrail can be reduced by the amount of sharing of 1 and the lock ring 3, the overall cost required for the construction of the handrail can be reduced, and the labor for constructing the handrail can be saved.
[0017]
【Example】
1 to 6 show an embodiment of a handrail bracket according to the present invention. 1 to 3, the handrail bracket includes a base 1 fastened and fixed to a wall surface (mounting surface), a bracket body 2 that is detachably engaged with the base 1, and a bracket body that is mounted on the base 1. A lock ring 3 that locks and holds 2 in an inseparable manner, and a cap 4 that covers the outer surface of the connecting portion between the base 1 and the bracket body 2.
[0018]
In FIG. 2, the base 1 is formed of a disk-shaped die-cast product, and a cylindrical boss 7 is projected from the center of the disk surface, and a pair of left and right engagement pieces 8 are projected from the upper part. Screw holes 9 are formed at three positions on the peripheral edge of the base 1. A connecting hole 10 is formed on the inner surface of the cylindrical wall of the boss 7. Slits 11 for incorporating the lock pins 31 of the lock ring 3 are formed at two opposite positions of the cylinder wall, and guide grooves 12 that are continuously engaged with the lock pins 31 are formed in the circumferential direction. ing. Mounting recesses 13 that hold the cap 4 in place are formed at four positions on the peripheral edge of the board surface of the base 1. Reference numeral 14 denotes a positioning display, which is provided for positioning a plurality of bases 1 in a straight line.
[0019]
Both slits 11 are formed at the 1 o'clock and 7 o'clock positions on the dial of the watch, and the groove rear ends of both guide grooves 12 are at the 3 o'clock and 9 o'clock positions. 3, the groove wall 12a of the guide groove 12 on the side receiving the lock pin 31 is inclined downward from the slit 11 side toward the groove inner end side. This is for pulling the connecting shaft 20 toward the base 1, and details thereof will be described later.
[0020]
The bracket body 2 is a die in which a support arm 17 that curves in a J-shape, a bar seat 18 that projects from the upper end of the support arm 17, and a connecting portion that is provided at the base end of the support arm 15 are integrally formed. Consists of cast products. The seat surface of the bar seat 18 that supports the handrail bar R is formed in a lower concave shape, and screw holes 19 are formed on the left and right sides thereof.
[0021]
The connecting portion has a round shaft-like connecting shaft 20 fitted and mounted in the connecting hole 10 of the base 1, a flange 21 having the same diameter as the boss 7, and a reverse projecting upward from the center of the upper edge of the flange 21. An L-shaped receiving claw 22 and a positioning projection 23 formed at the inner corner of the receiving claw 22 are formed. A locking groove 24 that engages with the lock pin 31 and an entrance / exit 25 of the lock pin 31 are formed on the opposing peripheral surface of the connecting shaft 20. A keyhole-shaped decorative wall 26 bulges out on the outer surfaces of the flange 21 and the receiving claw 22.
[0022]
The lock ring 3 is made of a die-cast product and has a circular ring portion 30 that is externally fitted to the boss 7. A pair of lock pins 31 and an operation knob 32 are formed on the inner and outer surfaces of the opposing wall. It is. The thickness dimension of the operation knob 32 is larger than the thickness dimension of the ring portion 30 (see FIG. 6).
[0023]
The cap 4 is formed of a bowl-shaped plastic molded product that opens toward the wall surface, and is formed of a soft resin. In the center of the cap 4, an oval mounting hole 35 that engages with the base end of the support arm 17 of the bracket body is formed, and a mounting groove 36 is formed from the upper end of the hole 35 to the upper end of the peripheral edge of the cap wall. Has been. On the inner surface of the cap wall, four sets of claws 37 and 38 that engage with the mounting recess 13 of the base 1 and three ribs 39 that contact the lower half peripheral surface of the base 1 are formed. Of the four sets of claws 37 and 38, the claw 38 facing left and right also serves as a stopper of the lock ring 3.
[0024]
Although the handrail bracket is composed of the above components, the bayonet structure in this embodiment has a guide groove 12 formed on the boss 7, a lock groove 24 formed on the peripheral surface of the connecting shaft 20, the lock ring 3, and an inner surface thereof. The lock pin 31 engages with the lock groove 24 in a state in which the lock ring 3 is rotated from the unlock position to the lock position, and the bracket body 2 is fixedly held so as not to be separated. . Details thereof will be described later.
[0025]
The positioning structure for fixing and holding the bracket body 2 in a non-rotatable manner includes a pair of left and right engaging pieces 8 provided on the base 1 and a projection 23 provided at the inner corner of the receiving claw 22 of the bracket body 2. A stopper mechanism that is provided between the lock ring 3 and the cap 4 and prevents rotation of the lock ring 3 in the slack direction is provided on a pair of left and right operation knobs 32 provided on the lock ring 3 and an inner surface of the cap 4. It consists of a pair of left and right claws 38.
[0026]
Next, an example of an assembly procedure of the handrail bracket will be described. First, the base 1 is applied to the wall surface, the mounting indication with respect to the wall surface is determined using the positioning display 14 as an index, and the screw 1 is screwed into the wall surface through the screw holes 9 to fix the base 1. After all the bases 1 are fixed to the wall surface, the lock ring 3 and the bracket body 2 are assembled into the base 1. Specifically, the connecting shaft 20 is fitted into the connecting hole 10 in a state where the lock pin 31 is inserted into the slit 11 and the projection 23 of the bracket body 2 enters between the pair of engaging pieces 8. At this time, the protruding end of the lock pin 31 enters the lock groove 24 from the doorway 25.
[0027]
In the temporarily assembled state, as indicated by an arrow in FIG. 4, the operation knob 32 is rotated in the clockwise direction, the lock ring 3 is rotationally displaced from the unlock position to the lock position, and the lock pin 31 is moved into the lock groove. The inner part of 24 is engaged. At this time, the lock pin 31 is guided by the groove wall 12a of the guide groove 12 and slightly displaced toward the wall surface side, and draws the connecting shaft 20 toward the base 1 side. As a result, as shown in FIG. 5, the shaft end of the connecting shaft 20 is in close contact with the inner back wall of the connecting hole 10. In other words, the connecting shaft 20 is clamped and fixed in the axial direction by the inner back wall 10a of the connecting hole 10 and the lock pin 31 so as not to be freely movable.
[0028]
As described above, the bracket body 2 can be fixed to the base 1 only by rotating the lock ring 3 to a predetermined angle, and the bracket body 2 can be fixed with one touch without using a fastening tool. In order to release the fixed state, it is only necessary to rotate the lock ring 3 in a reverse direction at a predetermined angle. Similarly, the bracket body 2 can be fixed and released with one touch.
[0029]
After mounting all the bracket bodies 2 on the base 1 and locking them with the lock ring 3, the handrail rod R is placed on the rod seat 18, and the screw 43 is screwed into the handrail rod R through the screw hole 19. The handrail rod R is fixed to each handrail bracket. Finally, the cap 4 is put on each handrail bracket. Specifically, the cap wall divided by the mounting groove 36 is bent and deformed in the front-rear direction to widen the groove opening, and the cap 4 is put on the connecting portion of the bracket body 2 and the base 1, and the claws 37 and 38 are used as the base. 1 is engaged with the mounting recess 13.
[0030]
In the state where the cap 4 is mounted as described above, the outer surface of the base 1 and the lock ring 3 is covered with the cap 4, so that the appearance of the handrail bracket is clean. Since the mounting hole 35 and the mounting groove 36 are closed by the decorative wall 26 of the bracket body 2 and the surfaces of these three members are flush with each other, the appearance of the handrail bracket can be made clear. It should be further noted that, as shown in FIG. 4, the locked operation knob 32 can be sandwiched between a pair of claws 38 to prevent the lock ring 3 from rotating counterclockwise. The received lock ring 3 is loosened, and the connecting shaft 20 can be reliably prevented from falling off the boss 7.
[0031]
By using the base 1 in common for each handrail bracket for wall surface, headboard, rod end support, and corner, the overall cost required for construction of the handrail can be reduced. Specifically, as shown in FIGS. 7 to 11, a connecting shaft 20A provided on the bracket main body 2A for headboard, a connecting shaft 20B provided on a bracket main body 2B for supporting rod ends, and a bracket main body for corners. The connecting shaft 20C provided on 2C is formed in the same structure as the connecting shaft 20 provided on the wall surface bracket body 2 so that the base 1 can be commonly used for the bracket bodies 2A to 2C.
[0032]
The bracket main body 2A shown in FIG. 7 is the same as the bracket main body 2 for wall surfaces except that the support arm 17 is formed perpendicularly. Therefore, the description is omitted. The following bracket main bodies 2B and 2C are similarly handled. The cap 4 is the same as the cap applied to the handrail bracket for the wall surface.
[0033]
The bracket end supporting bracket body 2B shown in FIGS. 8 and 9 has a hollow frame-shaped support arm 17b, and has a rod receiving hole 45 for receiving the handrail rod R at its tip. Reference numeral 46 denotes a cover having a U-shaped cross section made of a plastic molded product. By engaging and attaching the cover 46 to the opening periphery of the support arm 17b, the opening of the support arm 17b can be covered and the appearance can be adjusted.
[0034]
The cap 4b applied to the bracket end supporting bracket body 2B is different from the cap 4 applied to the handrail bracket for the wall surface in that it has a cylindrical structure with a C-shaped cross section as shown in FIG. However, the point that the claw 38 provided on the inner surface also serves as a stopper of the operation knob 32 is the same as the cap 4 applied to the handrail bracket for the wall surface.
[0035]
A corner bracket main body 2C shown in FIG. 11 includes a pair of rod receiving holes 47 whose central axes are orthogonal to each other and a support boss 48 to form a support arm 17c. Is provided. The upper surface opening of the support arm 17 c is covered with an L-shaped cover 49. The cap 4c applied to the corner bracket main body 2C has the same structure as the cap 4b applied to the rod end supporting bracket main body 2B. Note that the base 1 can be commonly used even in a bracket body having a structure other than the above.
[0036]
In addition to the above embodiment, the connecting shaft 20 may be provided on the base 1 side, and the connecting hole 10 may be provided on the bracket body 2 side. The positioning structure to be provided between the base 1 and the bracket body 2 may be constituted by a shaft and a recess that are fitted and engaged with each other. In short, in a state where the bracket body 2 is assembled to the base 1, the bracket body 2 Any structure that cannot rotate is sufficient. Similarly, the stopper mechanism that prevents the lock ring 3 from rotating in the slack direction can be configured by a pair of members that are provided between the lock ring 3 and the cap 4 and come into contact with each other.
[Brief description of the drawings]
FIG. 1 is a vertical side view of a handrail bracket.
FIG. 2 is an exploded perspective view of a handrail bracket.
FIG. 3 is an exploded front view of a handrail bracket.
4 is a cross-sectional view taken along line AA in FIG.
FIG. 5 is a longitudinal side view showing a connection structure between a bracket body and a base.
6 is a cross-sectional view taken along line CC in FIG.
FIG. 7 is a partially cutaway front view of a handrail bracket for headboards.
FIG. 8 is a perspective view of a handrail.
FIG. 9 is a partially cutaway side view of a handrail bracket for supporting a rod end.
10 is a cross-sectional view taken along line DD in FIG. 9. FIG.
FIG. 11 is a partially cutaway side view of a handrail bracket for a corner.
[Explanation of symbols]
1 Base 2 Bracket body 3 Lock ring 4 Cap 7 Boss 10 Connection hole 12 Guide groove 20 Connection shaft 24 Lock groove 31 Lock pin

Claims (5)

A base 1 fastened and fixed to the mounting surface, a bracket body 2 that is detachably engaged with the base 1, and a lock ring 3 that is attached to the base 1 and locks the bracket body 2 so that it cannot be separated. Has
The base 1 and the bracket body 2 are engaged and connected via a connecting shaft 20 and a connecting hole 10 which are provided between the joint surfaces of the two 1 and 2 and engage with each other.
The lock ring 3 is supported by the base 1 so as to be reciprocally movable between a lock position and an unlock position.
A handrail, wherein a bracket body 2 engaged and connected to a base 1 is non-separably engaged and fixed by a bayonet structure provided between the base 1, the bracket body 2 and the lock ring 3. bracket. The handrail bracket according to claim 1, wherein a positioning structure is provided between the base 1 and the bracket body 2 so as to be fitted and engaged with each other so as to fix and hold the bracket body 2 in a non-rotatable manner. The lock ring 3 is rotatably supported by a boss 7 protruding from the outer surface of the base 1.
A connecting hole 10 for receiving a connecting shaft 20 provided in the bracket body 2 is formed on the inner surface of the cylindrical wall of the boss 7.
A bayonet structure having a circumferential guide groove 12 formed on the cylindrical wall of the boss 1; a lock pin 31 protruding from the inner surface of the lock ring 3 and protruding from the inner surface of the connecting hole 20 through the guide groove 12; A locking groove 24 formed along the peripheral surface of the connecting shaft 10 and engaging with the locking pin 31;
The handrail according to claim 1 or 2, wherein the lock pin (31) engages with the lock groove (24) to hold the bracket body (2) in a non-separable manner when the lock ring (3) is rotated from the unlock position to the lock position. bracket. The outer surface of the connecting portion between the base 1 and the bracket body 2 is covered with a cap 4 that is non-rotatably engaged and fixed to the base 1 and the bracket body 2;
The handrail bracket according to claim 1, 2 or 3, wherein a stopper mechanism for preventing the lock ring 3 from rotating in the slack direction is provided between the lock ring 3 incorporated in the base 1 and the cap 4. A connecting shaft 20 provided on the bracket body 2 for wall surface, a connecting shaft 20A provided on the bracket body 2A for caps, a connecting shaft 20B provided on the bracket body 2B for supporting rod ends, and a bracket body 2C for corners. Is formed in the same structure as the connecting shaft 20C provided in
The handrail bracket according to claim 1, wherein the base 1 and the lock ring 3 can be used in common for the bracket bodies 2, 2A, 2B and 2C.

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