JP6669486B2 - Hook bar hook - Google Patents

Description

TECHNICAL FIELD The present invention relates to a hook bar hook for manually operating an opening / closing body (typically, a shutter curtain) for opening and closing a building opening.

In a manual shutter device, when pulling down and lowering a shutter curtain in a fully open position, a hook rod having a hook portion at a tip may be used. When this hook bar is not used, it is desirable that the hook bar be stored in a place near the opening of the building. By doing so, the hook bar can be prevented from being lost, and anyone can perform the pulling-down operation using the hook bar.

Patent Literature 1 describes a hook bar stopper for storing the hook bar when not in use. The stopper is provided with a mounting plate portion on a wall surface or the like and the mounting plate portion in parallel with the mounting plate portion. The hook provided on the mounting plate for hooking the hook and the outer surface of the bent portion of the hook when the hook is locked to the hook prevent the hook from falling off the hook. In order to achieve this, a stopper portion provided on at least one side of the hook portion and a small hook portion provided on the lower side of the hook portion of the mounting plate portion are integrally formed with the mounting plate portion. Become.

In Patent Literature 1, in a state where the hook bar is hooked on the stopper (see FIG. 3 of Patent Literature 1), the hook portion contacts the stopper portion, and the base end portion of the hook portion contacts the small hook portion. As a result, the hook rod is tightly hooked on the stopper, and there is a possibility that the workability when the hook rod is hooked or removed is deteriorated. On the other hand, if a desired clearance is provided between the hook portion, the stopper portion, and the small hook portion in order to improve workability, the hook bar swings right and left, deteriorating the stability, and the hooked state of the hook portion is reduced. There is a risk that the hook rod will fall off and fall off.

In addition, it is described that the small hook part also acts as a swing stopper for the hook rod, but the small hook part is mainly intended for hooking a key, instruction manual, etc., while the hook rod is tilted forward. When swinging to the left and right, the small hook portion may not function as a swing stopper. Further, when a force that pushes up from below the hook bar in the hooking state acts on the hook bar, the hook portion may be released from the hooking state and the hook bar may drop.
JP-A-2004-190246

An object of the present invention is to provide a hook bar hook which has a simple structure and does not easily come off and drop.

The technical means adopted by the present invention are:
What is claimed is: 1. A hook for a hook rod having a hook portion at a tip of a rod portion, wherein the hook portion has a first portion as a hook portion, and a second portion connecting the first portion and the tip of the bar portion. Consisting of
The latch is
A plate portion including a first surface portion and a second surface portion, the plate portion being attached via the second surface portion;
A first element having a hooked concave portion projecting from the first surface of the plate portion and hooking the first portion of the hook portion;
A groove formed between the second element and the third element, which is located below the first element and protrudes from the first surface of the plate part, and receives a tip of the rod-shaped part of the hook rod;
An abutted portion that is located below the first element and above the groove and protrudes from the first surface of the plate;
With
The swing of the hook bar in the hooked state in the left-right direction is regulated by the second element and the third element,
The upward movement of the hook bar in the hooked state is regulated by the second portion of the hook portion abutting on the abutted portion,
Hook bar hooks.

In one aspect, the hooked concave portion is located apart from the first surface portion of the plate portion,
The projecting dimension of the second element and the third element is a dimension that reaches directly below the hooked concave portion.
By doing so, the second element and the third element reach the axis of the hook bar hooked on the hook, and swing the hook bar in the hooked state in the left-right direction. Can be regulated well.

In one aspect, at least a portion of the first portion of the hook portion is located within the hooked concave portion in a state where the hook bar has moved upward and the second portion of the hook portion has contacted the contacted portion. are doing.
In an embodiment to be described later, the first portion of the hook portion is hooked in the hooked recess in a horizontal posture, and the lower portion of the first portion of the hook portion is hooked when the hook rod is moved upward. The latching recess is located below the upper edge of the front piece.

In one aspect, the contacted part is a part of the first element.
In an embodiment described later, a portion of the bottom surface of the first element is a contacted portion.

ADVANTAGE OF THE INVENTION According to this invention, since the front-end | tip part of the bar-shaped part of a hook bar in a hooked state is received and restrained in a groove part, swinging of the hook bar in the left-right direction is restricted, and a hook bar falls off. There is no such thing.

According to the present invention, the second portion of the hook portion of the hook bar in the hooked state is located below the contacted portion and separated from the contacted portion, and when the hook bar moves upward, The upward movement of the hook rod when the second portion of the hook abuts on the abutted portion is restricted by the second portion of the hook abutting on the abutted portion, so that the hook bar comes off. Nothing.

FIG. 4 is a front view of the shutter device in a fully closed position, in which a hook bar is hooked on a guide rail. FIG. 5 is a side view of the shutter device in a fully open position, in which a hook bar is hooked on a guide rail. It is a figure showing a hook stick. It is a figure showing a hook of a hook stick. It is a longitudinal cross-sectional view of the hook of the hook bar. The left diagram is a partially enlarged view of FIG. 1, and the right diagram is a partially enlarged view of FIG. 2, showing a hook bar being hooked on a hook. It is a figure which shows the hooking state of the hook bar with respect to the hooking tool. FIG. 8 is a diagram illustrating a state where the hook bar has moved upward from the state of FIG. 7.

An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view showing a fully closed state of a manual shutter device exemplified as an opening and closing body for opening and closing a building opening, and FIG. 2 is a side view showing a fully opened state of the manual shutter. The manual shutter device includes a shutter curtain 1 that opens and closes a building opening. Both ends of the shutter curtain 1 in the width direction are guided by grooves of left and right guide rails 2 that are erected at both ends in the width direction of the building opening. The building opening is opened and closed by moving up and down.

The upper end of the shutter curtain 1 is connected to a winding shaft (not shown) provided in a shutter case 10 arranged above the opening of the building, and the shutter curtain 1 is moved up and down by forward and reverse rotation of the winding shaft. To open and close the building opening. The take-up shaft is urged by a balance spring in a direction in which the shutter curtain 1 is taken up. When a force for lowering the shutter curtain 1 is applied to the shutter curtain 1 in the fully opened position to start the descent, the shutter is moved. When the curtain 1 descends by its own weight and lands on the floor surface FL to be in the fully closed position, and the shutter curtain 1 in the fully closed position is acted upon by a force for raising the shutter curtain 1 to start raising, the balance is reduced. The shutter curtain 1 rises while being wound up by the urging force of the spring, and assumes a fully open position.

When the shutter curtain 1 is taken up by the take-up shaft and is in the fully open position, the lower end of the shutter curtain 1 is located close to the ceiling CL, so that at a general opening height, the lower end of the shutter curtain is out of reach. Will be located at height. Therefore, the hook bar 3 is hung on the lower end of the shutter curtain 1 which is wound around the winding shaft and is in the fully opened position, and the shutter curtain 1 is pulled down using the hook bar 3. The scene in which the hook bar 3 according to the present invention is used is not limited to the pulling down of the shutter curtain 1 but may be used for opening and closing doors other than the shutter.

As shown in FIG. 3, the hook bar 3 includes a long bar 30, a hook 31 provided on the distal end of the bar 30, and a handle 32 provided on the proximal end of the bar 30. Become. The hook portion 31 includes a first portion 310, a second portion 311, and a third portion 312, and the first portion 310 forms a hook portion extending in a direction perpendicular to the length direction of the rod 30. The third portion 312 extends in the length direction of the bar 30, and the second portion 311 extends to connect the first portion 310 and the third portion 312. The second portion 311 extends obliquely with respect to the length direction of the rod-shaped portion 30, and a connection portion between the first portion 310 and the second portion 311 has a curved shape, and the first portion 310 and the second portion 311 have a curved shape. The angle formed with the portion 311 is less than 90 degrees.

The distal end portion of the rod portion 30 is a small diameter portion 33 into which the third portion 312 of the hook portion 31 is inserted. That is, the third portion 312 is formed by the hook portion 31 and the rod portion 30. It is a connecting part with. At the tip end portion (small-diameter portion 33) of the rod portion 30, a protrusion 34 is formed perpendicular to the direction in which the first portion 310 of the hook portion 31 extends, and the diameter of the rod portion 30 extends from the protrusions 34 on both sides. A larger wide portion is formed.

In the present embodiment, the bar 30 has a circular cross section, but the cross section of the bar is not limited, and may be, for example, a flat shaft. In this embodiment, the hook portion 3 is formed by connecting the bar portion 30 and the hook portion 31 formed of separate members. However, the hook portion 31 and the bar portion 30 may be integrally formed.

A hook 4 for hooking and storing the hook bar 3 when not in use is provided near the opening of the building. In the present embodiment, as shown in FIGS. 1, 2, and 6, the hook 4 is provided on a finding surface 20 of one of the guide rails 2 erected right and left. In addition, the site | part which fixes the latch 4 is not limited to the finding surface 20 of the guide rail 2, If it is the surface exposed outside in the structure near the opening of a building, it will be a guide. It may be provided on a side surface of the rail 2, a guide rail base material, a wall surface, or the like. In this specification, the “structure” is treated as including a guide rail.

As shown in FIG. 4, the hook 4 includes a vertically rectangular plate portion 40. The plate portion 40 includes a first surface portion 400, a second surface portion 401, an upper edge 402, and a lower edge 403. And left and right side edges 404. In the plate portion 40, mounting holes 45 are formed vertically separated from each other at the center in the width direction, and the hook 4 contacts the second surface portion 401 with the finding surface 20 of the guide rail 2 so that the mounting holes 45 are formed. Is fixed to the finding surface 20 by screwing a screw into the surface. As shown in FIG. 6, the width of the plate portion 40 of the hook 4 is smaller than the width of the finding surface 20. In addition, the fixing means of the hook 4 is not limited to the one using a screw. For example, the second surface 401 of the hook 4 may be fixed to the finding surface 20 using a double-sided adhesive tape.

A first element 41 is formed on the first surface portion 400 of the plate portion 40 at a central portion in the width direction and substantially at the center in the height direction. Below the first surface portion 400 of the plate portion 40, a second element 42 is located at a central portion in the width direction, and a third element 43 is located at left and right sides in the width direction. In the present embodiment, in the projecting dimension of the plate section 40 from the first surface section 400, the projecting dimension of the first element 41 is larger than the projecting dimensions of the second element 42 and the third element 43. In the present embodiment, the hook 4 is integrally molded from a resin, but may be formed by assembling a plurality of members. The material of the hook 4 is not limited to resin, but may be metal, for example.

The first element 41 has a hooked concave portion composed of a vertically rising front piece 410 and a concave surface 411, and the concave surface 411 of the hooked concave portion is separated from the front (separated from the first surface portion 400). Direction). The locking concave portion is formed at a central portion in the width direction of the first surface portion 400 of the plate portion 40 and at a position closer to the upper side than the center in the height direction. The first portion 310 of the hook portion 31 of the hook bar 3 is hooked on the hooked concave portion of the first element 41.

The first element 41 has a front surface 412, left and right side surfaces 413, and a bottom surface 414, and the above-mentioned latching concave portion is formed on the upper surface. The front surface 412 further extends vertically downward from the front piece 410, the upper edge of the side surface 413 has a cross-sectional shape of the concave surface 411, and the side surface 413 extends vertically downward from the concave surface 411. The bottom surface 414 is a downwardly bulging curved surface.

Each third element 43 is formed on the left and right sides of the second element 42 so as to be separated from each other, and between the second element 42 and the third element 43, the distal end portion of the rod 30 of the hook bar 3 is received and restrained. A groove G is formed. More specifically, the left and right side surfaces 420 of the second element 42 and the inner side surface 430 of each third element 43 are spaced apart from each other, and a groove G is formed between the side surface 420 and the side surface 430. I have. In the illustrated embodiment, the side surfaces 420 and 430 are vertical surfaces. The width dimension of the groove G is slightly larger than the diameter of the distal end portion (small diameter portion 33) of the hook bar 3 and satisfactorily accepts the distal end portion of the hook bar 3 and the horizontal direction of the hook bar 3. The movement is regulated.

It is located below the hooked concave portion (concave surface 411) of the first element 41 and above the groove G formed between the side surface 420 of the second element and the side surface 430 of the third element. An abutted portion 44 that regulates the upward movement of the hook bar 3 in the hooked state is formed. In the present embodiment, the portion from the lower end of the side surface 413 of the first element 41 to the left and right ends of the bottom surface 414 is the contacted portion 44. Note that the contacted portion 44 may be formed by a fourth element (not shown) provided below the first element 41 separately from the first element 41.

In the present embodiment, the two mounting holes 45 are formed in the plate portion 40 above and below the first element 41. More specifically, the upper mounting hole 45 is located between the upper edge 402 of the plate portion 40 and the first element 41, and the lower mounting hole 45 is formed of the first element 41 and the second element 42. It is located between.

6 and 7 show a state in which the hook bar 3 is hooked on the hook 4. In the hooked state, the first portion 310 of the hook portion 31 of the hook bar 3 is received in the hooked recess of the first element 41 of the hook 4. The depth of the hooked concave portion is larger than the diameter of the first portion 310 of the hook portion 31, and the upper edge of the front piece 410 is located above the upper edge of the first portion 310 in the horizontal posture. . The hooked concave portion (concave surface 411) of the first element 41 on which the first portion 310 of the hook portion 31 of the hook bar 3 is hooked is located at a position brought out with respect to the first surface portion 400 of the plate portion 40. The bar 3 is suspended from the vertical first surface 400 while being separated therefrom.

In the plate section 40, no elements are provided on the left and right of the first element 41. Specifically, the third element 43 does not extend to the height of the first element 41 (the upper end of the third element 43 is located below the bottom surface 414 of the first element 41), The hook portion 31 (the first portion 310 and the second portion 311) does not interfere with the third element 43.

When the hook bar 3 is hooked on the hook 4, the first portion 310 of the hook portion 31 of the hook bar 3 is hooked on the hooked concave portion of the hook 4, and Since the distal end portion only needs to be fitted into the groove portion G, mounting is easy.

The distal end portion (small diameter portion 33) of the rod portion 30 of the hook rod 3 is received in the groove G formed between the second element 42 and the third element 43, and the distal end of the rod portion 30 of the hook rod 3 is formed. The part is restrained. In the constrained distal end portion, the edge of the wide portion (one protruding portion 34) is in contact with or close to the first surface portion 400, and the hook portion 31 hangs down at a position separated from the first surface portion 400. The axis C of the hook bar 3 is separated from the first surface 400. The projecting dimension of the second element 42 and the third element 43 from the first surface portion 400 exceeds the axis C of the hook bar 3, and the tip portion (the small diameter portion 33) of the bar 30 of the hook bar 3. ) Is restrained accurately to restrict the left and right swing of the hook bar 3.

The first portion 310 of the hook portion 31 of the hook bar 3 is hooked on the hooked concave portion of the first element 41 of the hook 4 and the second portion 311 of the hook portion 31 is hung in a state where the hook bar 3 is suspended. The inner part 3110 (the base part of the hook part 31) is located below the contacted part 44 formed below the first element 41 via a clearance. When a force for raising the hook bar 3 acts on the state shown in FIG. 7, the inner portion 3110 of the second portion 311 of the hook portion 31 comes into contact with the contacted portion 44, and further upward movement is restricted. You.

As shown in FIG. 8, in a state where the inner portion 3110 of the second portion 311 of the hook portion 31 is in contact with the contacted portion 44, the upper edge of the first portion 310 in the horizontal posture is positioned above the front piece 410. Although it is located above the edge, the lower half of the first portion 310 is located below the upper edge of the front piece 410, and the first portion 310 of the hook portion 31 is disengaged from the hooked concave portion. The rod 3 does not fall.

As shown in FIG. 4, each element of the latch 4 is symmetrical. Specifically, the first element 41 and the second element 42 are formed at the center in the width direction of the plate portion 40 and have a symmetrical shape. The third element 43 and the groove portion G are formed symmetrically in the plate portion 40. In FIGS. 6 to 8, the hook bar 3 is hooked using the right half portion of the hook 4, but the hook bar 3 in the opposite direction can be hooked using the left half portion of the hook 4. Will be understood by those skilled in the art.

DESCRIPTION OF SYMBOLS 1 Shutter curtain 2 Guide rail 20 Guide rail finding surface 3 Hook bar 30 Bar portion 31 Hook portion 310 First portion 311 Second portion 4 Hook 40 Plate portion 400 First surface portion 401 Second surface portion 41 First element 410 Front Piece 411 concave surface 42 second element 43 third element 44 contacted portion G groove

Claims (4)

What is claimed is: 1. A hook for a hook rod having a hook portion at a tip of a rod portion, wherein the hook portion has a first portion as a hook portion, and a second portion connecting the first portion and the tip of the bar portion. Consisting of
The latch is
A plate portion including a first surface portion and a second surface portion, the plate portion being attached via the second surface portion;
A first element having a hooked concave portion projecting from the first surface of the plate portion and hooking the first portion of the hook portion;
A groove formed between the second element and the third element, which is located below the first element and protrudes from the first surface of the plate part, and receives a tip of the rod-shaped part of the hook rod;
An abutted portion that is located below the first element and above the groove and protrudes from the first surface of the plate;
With
The swing of the hook bar in the hooked state in the left-right direction is regulated by the second element and the third element,
The upward movement of the hook bar in the hooked state is regulated by the second portion of the hook portion abutting on the abutted portion,
Hook bar hook. The hooked concave portion is located apart from the first surface portion of the plate portion,
The projecting dimension of the second element and the third element is a dimension reaching directly below the hooked concave portion , and is a dimension exceeding the axis of the hook bar in the hooked state .
A hook bar hook according to claim 1. In a state where the hook bar is moved up and the second portion of the hook portion is in contact with the contacted portion, at least a portion of the first portion of the hook portion is located in the hooked recess.
A hook bar hook according to claim 1. The contacted part is a part of the first element,
A hook bar hook according to any one of claims 1 to 3.

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