JP4636848B2 - Safety device for moving shelf equipment - Google Patents

Description

  The present invention relates to an interval between work paths formed by relative movement of adjacent movable shelves in a movable shelf apparatus in which a plurality of movable shelves are individually movably installed on rails laid on the floor surface. It relates to a safety device for holding.

Conventionally, as the safety device of the moving shelf device, the access blocking member protrudes from one adjacent moving shelf, the free end is brought into contact with the other moving shelf, and the working path is prevented from being narrowed, Some have prevented the danger of people getting caught between moving shelves. (For example, see Patent Documents 1, 2, and 3)
Japanese Utility Model Publication No. 55-148439 Japanese Utility Model Publication No.57-79444 Japanese Patent Laid-Open No. 10-262750

  However, all of the safety devices described in Patent Documents 1 to 3 pivot the base end portion of the access blocking member made of a single rod-like member to the support column of one moving shelf, and rotate it when in use. In this state, the free end is brought into contact with the other moving shelf, and when not in use, the access preventing member is in the vertical direction so as to be in close contact with the column.

  However, these safety devices support the access blocking member with other support members when in use, and when not in use, the access blocking member protrudes from the front surface of the support in a side view, resulting in poor design and visibility. . In addition, since the presence of the support member and the mounting position are fixed, the operability is not necessarily satisfied. Further, when the access prevention member is fixed to the support column, since the screwing means is used, the construction is performed. There was also a problem in terms of sex.

  In view of the above-mentioned problems of the prior art, the present invention provides a safety device in a mobile shelf device that has sufficient functions as a safety device and that is excellent in design, visibility, operability, and workability. The purpose is to provide.

According to the present invention, the above-described problems are solved by the invention having the following configuration, as shown in each of the claims.
(1) A safety device for maintaining the distance between work paths formed by relative movement of adjacent mobile shelves in a mobile shelf device in which a plurality of mobile shelves are individually movable along a rail. In addition, the base end of the upper and lower ridges are respectively pivotally attached to the column of one of the adjacent moving shelves at intervals in the vertical direction, and the tip end of one of these two ridges is attached to the other When the access blocking member pivoted so as to be movable in the longitudinal direction is made almost horizontal, the free end is brought into contact with the other moving shelf, and the upper and lower hooks are cross-sectioned. The openings are opposed to each other as a letter shape, and the lower hook is slidably fitted in the upper hook, and when the access prevention member is not used, it is rotated and stored in a substantially vertical state. Make sure that the lower rod enters the upper cage.

  (2) In the above item (1), a tension coil spring for braking that pulls the lower rod toward the base end of the upper rod is provided.

(3) In the above item (2), an upper pin is fixed near the base end of the upper rod, and a lower pin is fixed near the distal end of the lower rod, and the lower pin is loosely inserted into a long hole formed in the upper rod. fitted to and connecting the tension coil spring between the upper pin and the lower portion the pin.

(4) A safety device for maintaining an interval between work paths formed by relative movement of adjacent mobile shelves in a mobile shelf device in which a plurality of mobile shelves are individually movable along the rail. In addition, the base end of the upper and lower ridges are respectively pivotally attached to the column of one of the adjacent moving shelves at intervals in the vertical direction, and the tip end of one of these two ridges is attached to the other When the access blocking member pivoted so as to be movable in the longitudinal direction is made almost horizontal, its free end is in contact with the other moving shelf, and close to the base end of the upper cage. The upper pin is fixed to the lower end of the lower hook, and the notch into which the upper pin of the upper hook enters when the access blocking member is stored is formed in the lower hook, and the lower pin is formed in the upper hook. loosely fitted into the elongated hole, and between the upper pin and the lower portion pin Coupling the tension coil spring for brake pulling the lower rod in the proximal direction of the upper rod.

According to the present invention, the following effects can be obtained.
According to the first aspect of the present invention, the access prevention member is attached to the support column of one of the adjacent moving shelves with the base end portions of the upper and lower ridges spaced from each other in the vertical direction. One end of the access prevention member is pivotally attached to the other saddle so as to be movable in its longitudinal direction. In addition to being slim, the base end portion has a predetermined length in the vertical direction, so that stable visibility is obtained in a side view and sufficient strength as a safety device is obtained. Furthermore, when the access prevention member is in the vertical direction when not in use, the lower eyelid enters the upper eyelid, and the access prevention member becomes slim in a side view, thereby improving the design and visibility.
In addition, by slidably fitting the upper hook and the lower hook having a U-shaped cross section, the lower hook can completely enter the upper bag when the access prevention member is not used, and can be stored in a good manner. Design and visual quality are further improved.

  According to the second aspect of the present invention, since the tension coil spring for braking for pulling the lower rod toward the base end portion of the upper rod is provided, the tension coil is rotated when it is rotated from the storage position when not in use to the use position. Since the braking force of the spring works and a sudden impact can be prevented from being applied to the support portion of the access blocking member and the parts can be prevented from being damaged, operability and durability can be improved.

  According to the third aspect of the present invention, the lower pin of the lower hook is loosely fitted in the long hole of the upper hook, and the lower pin and the upper pin of the upper hook are pulled and connected by the coil spring. Are relatively moved, and resistance is applied to the relative movement by the tension coil spring, so that braking can be effectively applied.

  According to the fourth aspect of the present invention, since the notch into which the upper pin is inserted is formed in the lower hook, the upper pin does not get in the way when the access blocking member is stored, and the lower hook can easily enter the upper hook easily. Design and visibility are improved.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a side view of a movable shelf device provided with the safety device of the present invention. In addition, let the left-right direction in FIG. 1 be the front-back direction of a movement shelf.
As shown in the figure, a plurality of movable shelves (3) are installed on a rail (1) laid on the floor so as to be movable in the front-rear direction via wheels (2). Fixed shelves (4) are installed at the front and rear ends of the moving shelf (3) in the moving direction. Posts are provided at the front, rear, left and right corners of each movable shelf (3), and locking holes (5) are arranged in the vertical direction on the side surface (front side in the drawing) of the support column (6) ( (See FIG. 2). The support block (7) as described below is provided on the column (6).

  2 is an enlarged perspective view of the circle A portion in FIG. 1, FIG. 3 is an enlarged side view of the approach blocking member, FIG. 4 is an enlarged sectional view of the upper and lower ridges of the access blocking member, and FIG. b) and (c) are enlarged sectional views taken along lines AA, BB, and CC, respectively, in FIG.

As shown in FIG. 2, the bracket (9) having a pair of mounting pieces (11) protruding in the front-rear direction of the movable shelf is arranged in the vertical direction on the side surface of the column (6) with the hook (10). It is attached by being locked in the provided locking hole (5). An approach blocking member (7) is rotatably supported by the mounting piece (11).
As shown in FIGS. 2, 4 and 5, the access blocking member (7) is composed of an upper hook (12) having a U-shaped cross-section downward and a lower hook (13) having an U-shaped cross-section facing upward. A lower rod (13) is slidably fitted into the rod (12) from below. Sleeves (14) and (15) serving as bearings are fixed to the base end portions (the right end portion in FIG. 4) of the upper rod (12) and the lower rod (13).

  As shown in FIGS. 2, 3 and 5, the upper shaft (12) and the lower shaft (13) are attached to the bracket by the support shafts (16) and (17) inserted through the sleeves (14) and (15). The mounting piece (11) of (9) is supported so as to be rotatable at an interval in the vertical direction.

  As shown in FIGS. 3 and 4, the upper pin (19) is fixed to the hole (18) formed near the base end of the upper rod (12), and is formed near the front portion of the lower rod (13). The lower pin (21) is fitted and fixed to the hole (20). The lower pin (21) is loosely fitted in a long hole (22) facing the front-rear direction formed in the upper flange (12). A tension coil spring (23) for braking is stretched between the upper pin (19) and the lower pin (21).

  FIG. 3 shows a state when the access preventing member (7) is in use. In this state, the lower rod (13) is supported by the support piece (24) of the bracket (9) and is held in a substantially horizontal state. ing. The access blocking member (7) is interposed between the front and rear moving shelves, so that the moving shelves are prevented from approaching, and the safety of the person who enters the work path is ensured.

  FIG. 6 is an enlarged side view showing the way in which the access preventing member (7) is rotated upward and stored in a non-use state. Since the support shafts (16) and (17) are displaced up and down, the upper rod (12) and the upper rod (12) are displaced relative to each other as the access blocking member (7) is rotated upward. When the lower rod moves in the direction of arrow B, the lower pin (21) fixed thereto moves in the direction of arrow B within the long hole (22). At this time, since the lower rod (13) is pulled by the tension coil spring (23) via the lower pin (21), a force in the direction of turning upward acts on the access blocking member (7), and the access blocking member ( 7) The turning operation becomes lighter.

  FIG. 7 is an enlarged side view showing the storage state of the access blocking member (7). The access blocking member (7) is stored in a state substantially parallel to the support column in a state of contacting the side surface of the support column (6). ing. At this time, the upper pin (19) enters the notch (25) (see FIG. 4) formed in the lower hook (13), and the lower hook (13) completely enters the upper hook (12). ing.

  In the case of turning from the housed state of FIG. 7 to the use state of FIG. 5, in FIG. 6, the tension coil spring (23) exerts a braking force on the approach blocking member (7). work. Thereby, when the access blocking member (7) is moved to the use state shown in FIG. 5, it is prevented from suddenly colliding with the support piece (24) of the bracket (9). These damages can be prevented by reducing the impact applied to 9) and the column (6).

  FIG. 9 is a diagram showing the action of force in the retracted state of the access preventing member (7) shown in FIG.

  As shown in FIG. 9, in the process of rotating from the use state and from the use state to the storage state, or the process of rotating from the storage state to the use state, the approach blocking member is caused by the tensile force Q of the tension coil spring (23). A moment in the direction of rotation from the use state to the retracted state (a moment in the clockwise direction in FIG. 9) acts on (7), but in the retracted state, the upper rod (12) and the lower rod (13) Since the support shafts (16) and (17) at the base end of the spring are positioned in a straight line in the vertical direction, the moment does not occur due to the tensile force P of the tension coil spring (23) at this time, and the position of the stored state is It is held stably.

  FIG. 8 is an enlarged side view of the access preventing member (7a) in the retracted state according to another embodiment, and FIG. 10 is a diagram showing the action of force in the retracted state of the access preventing member (7a) shown in FIG. .

  In the embodiment shown in FIG. 8, the support shafts (16a) and (17a) at the base end portions of the upper rod (12a) and the lower rod (13a) constituting the access blocking member (7a) are the embodiments shown in FIG. Thus, the support shaft (16a) of the base end of the upper rod (12a) is not positioned on a straight line in the vertical direction, and the support shaft (6a) is more than the support shaft (17a) of the base end of the lower rod (13a). ) It is provided nearby. Therefore, in the use state of the access preventing member (7a), the process of turning from the use state to the housed state, and the housed state, the tensile force R of the tension coil spring (23a) turns from the use state to the housed state. A direction moment (in FIG. 10, a clockwise direction moment) acts.

  Therefore, in the retracted state, the access preventing member (7a) is in a state where the tip is pulled toward the support (6) side of the movable shelf (3), and there is no possibility of falling to the use state side, so that the position stability is further improved. It becomes.

It is a side view of the movement shelf apparatus provided with the safety device of the present invention. FIG. 2 is an enlarged perspective view of a circle A portion in FIG. 1. It is an enlarged side view of the use state of an access prevention member. It is an expanded disassembled sectional view of an access blocking member. (A), (b), and (c) are the expanded sectional views in the AA line of FIG. 3, a BB line, and CC line, respectively. It is an enlarged side view in the middle of accommodating an access prevention member. It is an expanded side view of the accommodation state of an approach prevention member. It is an enlarged side view of the accommodation state of the access prevention member in another embodiment. It is a figure which shows the effect | action of the force in the accommodation state of the approach prevention member shown in FIG. It is a figure which shows the effect | action of the force in the accommodation state of the approach prevention member shown in FIG.

(1) Rail
(2) Wheel
(3) Moving shelf
(4) Fixed shelf
(5) Locking hole
(6) Prop
(7) Access blocking member
(8) Safety device
(9) Bracket
(10) Hook
(11) Mounting piece
(12) (12a) Upper ridge
(13) (13a) Lower ridge
(14) Sleeve
(15) Sleeve
(16) (16a) Spindle
(17) (17a) Spindle
(18) Hole
(19) (19a) Top pin
(20) Hole
(21) (21a) Bottom pin
(22) (22a) Long hole
(23) (23a) Tension coil spring
(24) (24a) Support piece
(25) Notch

Claims (4)

  A safety device for maintaining an interval between work paths formed by relative movement of adjacent mobile shelves in a mobile shelf device in which a plurality of mobile shelves are movably installed along a rail, The base ends of the upper and lower cages are pivotally attached to the column of one of the adjacent moving shelves at intervals in the vertical direction, and the tip of either one of these cages is attached to the other cage When the access blocking member pivoted so as to be movable in the longitudinal direction is substantially horizontal, its free end is brought into contact with the other moving shelf, and the upper and lower ridges have a U-shaped cross section. The openings are opposed to each other as a shape, and the lower hook is slidably fitted in the upper hook. When the access prevention member is not used, it is rotated and stored in a substantially vertical state. A transition characterized by a lower heel entering inside. Safety device of shelf equipment.   2. The safety device for a movable shelf apparatus according to claim 1, further comprising a tension coil spring for braking that pulls the lower rod toward the base end portion of the upper rod. An upper pin to the proximal end side of the upper rod, the lower pins respectively fixed to the distal end side of the lower rod, said lower pin loosely fitted into the long hole formed in the upper rod, and the upper pin and the lower portion pin 3. The safety device for a movable shelf apparatus according to claim 2, wherein a tension coil spring is connected therebetween. A safety device for maintaining an interval between work paths formed by relative movement of adjacent mobile shelves in a mobile shelf device in which a plurality of mobile shelves are movably installed along a rail, The base ends of the upper and lower cages are pivotally attached to the column of one of the adjacent moving shelves at intervals in the vertical direction, and the tip of either one of these cages is attached to the other cage When the access blocking member pivoted so as to be movable in the longitudinal direction is substantially horizontal, the free end is brought into contact with the other moving shelf, and the upper pin is placed near the base end of the upper rod. The lower pin is fixed to the tip of the lower rod, and a notch into which the upper pin of the upper rod enters when the access prevention member is stored is formed in the lower rod, and the lower pin is formed into a long hole formed in the upper rod. loosely fitted to and between the upper pin and the lower portion the pin, the lower Lever safety device of a mobile shelving system, wherein a concatenation of the tension coil spring for braking to draw the proximal direction of the upper rod.

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