JP4323285B2 - Manual moving shelf device - Google Patents

Description

  The present invention relates to a manual moving shelf apparatus that can move a moving shelf by manually rotating a rotary operation handle.

  A conventional manual moving shelf device of this type has a rotating operation handle whose handle protrudes outward from the side wall of the moving shelf and rotates around a horizontal rotating shaft via a clutch and a transmission means. , Coordinated to the wheel of the movable shelf and rotated the rotating operation handle, the clutch is engaged, the rotational force of the rotating operation handle is transmitted to the wheel, and the movable shelf can be moved manually (See, for example, Patent Document 1).

In addition, there is a type that locks the rotation operation handle by folding a handle that protrudes outward from the side wall of the movable shelf (see, for example, Patent Document 2).
Japanese Utility Model Publication No. 60-6261 (FIGS. 2 to 5) Japanese Utility Model Publication No. 59-5382 (FIGS. 3 and 4)

  However, in the one described in Patent Document 1, when the movable shelf is stopped, the handle normally protrudes outward from a position directly below the rotation shaft of the rotation operation handle. There is a risk that a carriage, a wagon, or the like that transports books or documents to / from the movable shelf will come into contact with the handle, the carriage, etc. may be damaged or damaged.

  Moreover, in what is described in Patent Document 2, by folding the handle, it is possible to eliminate the risk of contact with the cart or the like as described above, but if you forget to fold it, In addition, there is a fear that the structure described above is complicated and the structure for locking the rotary operation handle is complicated due to the folding of the handle or the operation thereof.

  In view of the above-described problems of the prior art, the present invention is a manual moving shelf device that travels by manually rotating the rotation operation handle. When the rotation operation handle is not operated, the handle is always rotated. An object of the present invention is to provide a manual moving shelf device that is located above the rotation axis of the handle and can prevent the carriage or the like from coming into contact with the handle.

According to the present invention, the above problem is solved as follows.
(1) A clutch and transmission means capable of switching a rotating operation handle whose handle protrudes outward from the side wall of the movable shelf and rotates about a horizontal rotating shaft between a meshing state and a non-meshing state The manual moving shelf device that is linked to the wheels of the moving shelf via the wheel and rotates the wheel by rotating the rotating operation handle in the engaged state of the clutch so that the moving shelf can be moved. And a stop means for positioning the rotation operation handle at a stop position where the handle is located above the rotation axis when the clutch is not engaged.

(2) In the above item (1), the stopping means includes urging means for urging the rotary operation handle so that the handle is positioned upward.

(3) In the above item (2), the urging means is formed by the weight of the rotation operation handle by providing the center of gravity of the rotation operation handle on the opposite side of the handle with respect to the rotation axis.

(4) In the above item (2) or (3), the urging means is a weight provided on the opposite side of the handle with respect to the rotation shaft in the rotation operation handle.

(5) In the above item (2), the biasing means is a spring provided between the rotation operation handle and the side wall of the movable shelf.

(6) In the above item (1), the stopping means is provided at each part of the rotating operation handle and the side wall of the moving shelf that are opposed to each other or close to each other when the rotating operation handle is stopped at the stop position. As a result of the contact, a permanent magnet that holds or biases the rotary operation handle at the stop position is obtained.

(7) In the above item (1), the rotation operation handle is attached to the side wall of the moving shelf so that it can be moved slightly in the direction of the rotation axis, and the stop means is provided on the side wall of the movement shelf, and the rotation operation handle is stopped. It is a recess that can be fitted when it is in position and is prevented from rotating by fitting.

(8) In any one of the above items (1) to (7), the clutch is brought into a meshing state by rotating the rotation operation handle, and is brought into a non-meshing state by stopping the rotation operation handle at the stop position. Of the selected model.

(1) According to the first aspect of the present invention, when the rotation operation handle is not operated, the handle is always positioned above the rotation axis of the rotation operation handle by the stopping means, so that the carriage or the like touches the handle. It is possible to prevent contact.

(2) According to the invention described in claim 2, when the clutch is disengaged, the rotation operation handle is urged so that the handle is positioned upward by the urging force of the urging means, and automatically stops. Return to position.

(3) According to the invention described in claim 3, the urging means can be formed only by designing the rotary operation handle so that the center of gravity of the rotary operation handle is located at a specific position. Therefore, the structure can be simplified and the manufacturing cost can be reduced.

(4) According to the invention described in claim 4, the urging means can be formed simply by providing the weight at the main part of the rotary operation handle, and can be easily applied to the conventional manual moving shelf device. can do.

(5) According to the inventions of claims 5 and 6, the urging means can be formed easily and inexpensively.

(6) According to the invention described in claim 7, when the rotation operation handle is not used, the rotation operation handle is fixed in the stop position by fitting the rotation operation handle into the concave portion of the movable shelf side wall so that the handle is always rotated. It can be located above the shaft, and the same effect as that of the above-mentioned claim 1 can be surely produced.

(7) According to the invention described in claim 8, since it is automatically engaged only by rotating the rotation operation handle, and is automatically disengaged only by stopping the rotation operation handle at a fixed position. In addition, it is not necessary for the operator to manually perform the switching operation between the meshing state and the non-meshing state of the clutch, and the operation is easy.

  FIG. 1 is a perspective view of a first embodiment of the present invention. On the rail (1), three movable shelves (2) and one fixed shelf (3) are arranged in parallel, and three of the movable shelves (2) have their side walls (2a ) Can be moved left and right on the rail (1) by gripping the handle (5) and rotating it in either the left or right direction. .

  On the top of each movable shelf (2), a rail (6) for preventing overturning is laid, and each movable shelf (2) is provided with a ring (not shown) provided on the top for preventing the rail from falling ( 6), it is possible to prevent a fall when moving from a movement to a stop. The stored item (7) is placed on each shelf plate (8) of the movable shelf (2).

  Inside the movable shelf (2), a sprocket (9) is fixedly fitted to the rotating shaft (12) (see FIG. 2 and subsequent figures) of the rotary operation handle (4). The sprocket (9) and the rail ( 1) A chain (11) is wound around two sprockets (10) coaxial with a wheel (not shown) on the upper side. Therefore, when the rotating shaft (12) is rotated, the torque is transmitted to the sprocket (10) through the chain (11), and the wheel on the rail (1) rotates to move the movable shelf (2). . The sprockets (9) and (10) and the chain (11) form a transmission means for transmitting the rotational force of the rotary operation handle (4) to the wheels.

FIG. 2 is an enlarged sectional view showing an internal mechanism of the rotation operation handle (4) shown in FIG.
A toothed disk (14) formed with a plurality of teeth (13) is fixedly fitted to a rotation shaft (12) pivotally fitted at the center of a rotation base (4a) of the rotation operation handle (4). Around the toothed disk (14), there is a hook (16a) that is rotatable about a shaft (15) protruding from the rotating base (4a) and that can mesh with the tooth (13). With respect to the extension line (18) in which the pair of hook arms (16) and (16) extend the center line of the handle (17) extending in the radial direction on the rotary operation handle (4) to the opposite side of the rotation axis (12) They are arranged at symmetrical positions. Each hook arm (16) is disposed so as to be supported by a protrusion (20) protruding from an inner wall (19a) of a housing (19) provided on the rotation base (4a).

  The hook arm (16) (16) has a notch (16b) (16b) at the end close to the shaft (15), and the left and right free end corners on the notch (16b) (16b). (22a) The lower end of the restraining arm (22) facing upwards is pivotally mounted on the extension line (18) of the rotation base (4a) with the shaft (21) so that the faces (22a) and (22b) face each other. .

The pivot (5a) of the handle (5) is fastened to the tip of the handle (17) integrally formed with the housing (19) by a nut (23). A weight (24) is embedded in the housing (19) in the vicinity of the restraining arm (22) (on the opposite side of the handle (17) across the rotating shaft (12)). The center of gravity of the rotary operation handle (4) is located below the rotary shaft (12) in FIG. 2, that is, on the opposite side of the handle (5) with respect to the rotary shaft (12). ) (16a) is in a non-engagement state where the teeth (13) are not engaged, the handle (5) is positioned at the uppermost stop position.
That is, the weight (24) forms urging means for urging the rotation operation handle (4) toward the stop position, and also forms stop means for locating the rotation operation handle (4) at the stop position. ing.

FIG. 3 is a cross-sectional view of the main part when the rotation operation handle (4) is slightly rotated clockwise from the state shown in FIG.
If the rotation handle (4) is turned to the right as shown by the arrow (25), the restraining arm (20) and the hook arms (16) (16) are moved to the arrows (26) (27) (27) by static inertia. Swing to the right as shown by. As a result, the left hook (16a) meshes with the teeth (13) at the outer surface (16c), and the clutch is engaged.
At this time, the left free end corner (22a) of the restraining arm (22) is detached from the position facing the left notch (16b), contacts the abutting surface (16c), and the right free end Since the corner (22b) abuts the right notch (16b) and is firmly blocked, the engagement between the left hook (16a) and the teeth (13) is determined by the left and right hook arms (16). It is held by the positional relationship between (16) and the restraining arm (22).

  In this state, if the clockwise rotation of the rotation operation handle (4) is continued, the left hook (16a) keeps pushing the tooth (13) to be locked on the outer surface (16d). 14) rotates in the clockwise direction as indicated by the arrow (28), like the rotation operation handle (4). That is, while the rotational speed (b) of the rotary operation handle (4) in the direction of the arrow (25) is larger than the rotational speed (b) of the toothed disk (14) in the direction of the arrow (28), The engagement between the hook (16a) and the tooth (13) continues, and the movable shelf (2) travels as the rotating shaft (12) rotates.

  FIG. 4 is a cross-sectional view of the main part when the rotation operation handle (4) of FIG. 3 is stopped. When the rotation speed of the rotation operation handle (4) is decreased to stop the movable shelf (2), the rotation speed (b) of the toothed disk (14) rotating by inertia in the direction of the arrow (28) The rotational speed (b) of the rotary operation handle (4) in the direction of the arrow (25) is greater than 0 (0 when stopped). Then, the left hook (16a) meshes with the tooth (13 ') and the inner surface (16e) after the tooth (13) that has been meshed so far, and this tooth (13') It is pushed away from the rotating shaft (12). Then, the left hook (16a) rotates around the shaft (15) as shown by the arrow (29), and is disengaged from the toothed disk (14), so that the clutch is released, i.e., non-engaged. It becomes a state.

  At this time, the abutting surface (16c) of the left hook arm (16) slides with the left free end corner (22a) of the restraining arm (22), and eventually comes into contact with the free end corner (22a). The contact is eliminated, and the left free end corner (22a) swings back in the direction of the arrow (30) and again comes to a position facing the left notch (16b). During this time, the rotation operation handle (4) rotates counterclockwise so that the weight (24) is positioned at the lowermost position, but the left hook (16a) is not engaged with the toothed disk (14). The moving shelf (2) does not reverse.

  In this example, the rotating operation handle (4) is rotated by the toothed disk (14), the pair of hook arms (16), (16), and the restraining arm (22), so that the rotating operation handle is engaged. A clutch (31) of a type that is brought into a non-engagement state by stopping (4) at the stop position is formed.

  5 and 6 are right side views showing the main parts of the second and third embodiments of the present invention, respectively. In the previous embodiment, as an urging means for urging the rotation operation handle (4) toward the stop position, a weight (24) provided at the end of the rotation operation handle (4) opposite to the handle (5) is provided. Although used, in the second and third embodiments, magnets and springs are used, respectively.

  In the second embodiment of FIG. 5, a magnet (41) having an N pole on the tip end side of the handle (17) of the rotation operation handle (4) and an S pole in the center direction of the rotation operation handle (4). On the other hand, on the side wall (2a) of the movable shelf (2), the S pole is slightly above the tip of the handle (17) of the rotary operation handle (4) stopped at the stop position, and further above this Is provided with a magnet (42) in which the N pole is located. When the rotation operation handle (4) is stationary, the N pole of the magnet (41) and the S pole of the magnet (42) are attracted to each other, and the rotation operation handle (4) has the handle (5) at the top. It is held at the stop position.

  If the rotation operation handle (4) is turned, the first magnet (41) moves together with this, but if the rotation of the rotation operation handle (4) is stopped, the N pole of the first magnet (41) becomes the second pole. It is pulled to the south pole of the magnet (42) and returns to its original uppermost position. The north and south poles of both magnets (41) and (42) can be reversed. During this time, the clutch is engaged and released, that is, the relationship between the meshing state and the non-meshing state is the same as in the previous embodiment.

  In the third embodiment shown in FIG. 6, the pin (51) protrudes from the side wall (2a) of the movable shelf (2) above the tip of the handle (17) of the rotary operation handle (4) when the stop position is set. A tension coil spring (52) as a biasing means is provided on the pin (51) and the pivot (5a) of the handle (5) provided at the tip of the handle (17) of the rotation operation handle (4). Each end of is locked.

  When the rotary operation handle (4) is turned, the tension coil spring (52) expands together with this, but when the rotation of the rotation operation handle (4) is stopped, the tension of the tension coil spring (52) causes the rotation operation handle (52). 4) is returned to the original stop position where the handle (5) is located above.

  Therefore, according to the present invention, after the rotation operation handle is stopped, the rotation operation handle is returned to the stop position in which the handle is positioned upward without any manual operation.

  FIG. 7: is a perspective view which shows the mode at the time of conveying a storage thing around the manual type movement shelf apparatus which is the 4th Embodiment of this invention. In this embodiment, a recess (61) having substantially the same shape as the rotation operation handle (4) is formed on the side wall (2a) of the movable shelf. The rotation operation handle (4) can be inserted into and removed from the recess (61), and is stored in the recess (51) when not in use. This loading / unloading may be performed manually or may be automatically pulled into the recess when the handle (5) is released by a spring or the like.

According to this embodiment, when the stored items (62) are stacked on the carriage (63) and transported in the direction of the arrow (64), the worker (65) can move the conventional rotary operation handle (67 ), When the handle is positioned directly below, as shown by the arrow (66), the handle is hidden behind the storage item (62) and cannot be seen. 62) may collide and be damaged. However, as shown by the solid line, when the rotation operation handle (4) is located at the stop position where the handle (5) is located above, the handle (5 ) And the handle (5) is higher than the normal height of the stored item (62) loaded on the carriage (63), so that the stored item (62) collides with the handle (5). There is very little risk of damage.
According to this embodiment, since the rotary operation handle (4) is stored in the recess (61) when stopped, the possibility of hindering the transportation of the storage items (62) in the vicinity is further reduced.

The present invention is not limited to only the first to fourth embodiments described above, and various modifications can be made.
For example, the clutch is not of a special structure as described above, but of a known structure that can be easily switched between a meshing state and a non-meshing state by a manual switching operation, or a tension coil Instead of the spring (52), a compression coil spring, a leaf spring, or the like can be used.

1 is a perspective view of a first embodiment of the present invention. It is an enlarged vertical front view of the rotary operation handle. It is a longitudinal front view of the principal part when the rotation operation handle of FIG. 2 is similarly rotated. FIG. 4 is a longitudinal sectional front view of the main part when the rotation operation handle of FIG. 3 is also stopped. It is a right view of the principal part of the 2nd Embodiment of this invention. It is a right view of the principal part of the 3rd Embodiment of this invention. It is a perspective view which shows a mode at the time of conveying a storage thing in the periphery of the 4th Embodiment of this invention.

Explanation of symbols

(1) Rail
(2) Moving shelf
(2a) Side wall
(3) Fixed shelf
(4) Rotation operation handle
(4a) Rotation base
(5) Handle
(5a) Axis
(6) Fall prevention rail
(7) Items in storage
(8) Shelf board
(9) (10) Sprocket
(11) Chain (transmission means)
(12) Rotating shaft
(13) Teeth
(14) Toothed disk
(15) axis
(16) Hook arm
(16a) Hook
(16b) Notch
(16c) Contact surface
(16d) Exterior
(16e) Inner surface
(17) handle
(18) Extension line
(19) Housing
(19a) Inner wall
(20) Protrusion
(21) axis
(22) Restraint arm
(22a) (22b) Free end corner
(23) Nut
(24) Weight (biasing means, stopping means)
(25) (26) (27) (28) (29) (30) Arrow
(31) Clutch
(41) (42) Magnet (biasing means)
(51) Pin
(52) Tension coil spring (biasing means)
(61) Recess (Stopping means)
(62) Items in storage
(63) Car
(64) Arrow
(65) Worker
(66) Arrow
(66) Conventional rotary operation handle

Claims (8)

Via a clutch and a transmission means that can be switched between a meshing state and a non-meshing state, a rotation operation handle whose handle protrudes outward from the side wall of the movable shelf and rotates around a horizontal rotation axis In the manual moving shelf device that is linked to the wheel of the moving shelf, and in the meshed state of the clutch, the rotating operation handle is rotated to rotate the wheel to move the moving shelf.
A manual moving shelf apparatus, comprising: a stop means for positioning the rotation operation handle at a stop position where the handle is positioned above the rotation axis in a non-engagement state of the clutch.   The manual moving shelf apparatus according to claim 1, wherein the stopping means includes urging means for urging the rotary operation handle so that the handle is positioned upward.   The manual moving shelf apparatus according to claim 2, wherein the biasing means is formed by the weight of the rotary operation handle by providing the center of gravity of the rotary operation handle on the opposite side of the handle with respect to the rotation axis.   The manual moving shelf apparatus according to claim 2 or 3, wherein the urging means is a weight provided on the opposite side of the handle with respect to the rotation axis in the rotary operation handle.   The manual moving shelf apparatus according to claim 2, wherein the biasing means is a spring provided between the rotary operation handle and the side wall of the moving shelf.   Stopping means are provided at each part of the rotating operation handle and the side wall of the moving shelf that face each other or close to each other when the rotating operation handle is stopped at the stop position, and stop the rotating operation handle by adsorbing or repelling each other. The manual moving shelf apparatus according to claim 1, wherein the permanent moving magnet is a permanent magnet held or biased in position.   The rotation operation handle is mounted on the side wall of the moving shelf so that it can be moved slightly in the direction of the rotation axis, and the stop means is provided on the side wall of the movement shelf and is fitted when the rotation operation handle is located at the stop position. The manual movable shelf apparatus according to claim 1, wherein the concave part is configured to be a recess that is capable of being prevented from rotating by fitting. The clutch according to any one of claims 1 to 7, wherein the clutch is in a meshing state by rotating a rotary operation handle and is in a non-meshing state by stopping the rotary operation handle at a stop position. Manual moving shelf device.

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