JPH09280288A - External force absorbing means, and installation structure of business machine using it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an external force absorbing means capable of preventing overturning or large movement of a business machine and detachment of a unit even if the external force such as the excessive impact or vibration when an earthquake occurs, and capable of securing the functions of an inner parts and the unit by mitigating the acceleration to be applied to the inside of the device, and an installation structure of the business machine using the external force absorbing means. SOLUTION: One end of a wire (a loosening/tensioning means) 6 of an external force absorbing means is fixed to a fixing member (a fixing means) 4 through a locking member (a locking means) 7, the wire 6 is passed through a fixed bracket 8 of a business machine body 1, abutted on a caster 3, and extended so as to surround the periphery of a lower part of the business machine body 1 from the outer side, the outer end part of the wire 6 is locked to a floor surface or a wall surface through the locking means to constitute an installation structure of a business machine. When an earthquake, or the excessive impact or vibration is generated, the wire 6 is expanded under the excessive external force, and the excessive external force can be effectively absorbed by the elongation of the wire 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to external force absorption for protecting office equipment such as copiers, facsimiles and personal computers installed in an office building against external force such as excessive shock or vibration in an earthquake. Means and installation structure of office equipment using the same.

[0002]

2. Description of the Related Art A schematic structure of a copying machine as an example of office equipment and a conventional example of its installation structure will be described with reference to FIGS. FIG. 15 is a front sectional view of the copying machine, and FIG. 16 is a perspective view showing the state of the copying machine when an earthquake occurs or when an excessive shock or vibration is applied.

As shown in FIG. 15, the copying machine has an image forming section 110 including a photosensitive drum 101 and the like, a belt conveying section 120 for conveying a transfer sheet on which an image has been transferred, and fixing an image transferred on the transfer sheet. Fixing unit 130, original glass 102
An optical system 140 that guides the original document image to the image forming unit 110, a large-size paper feeding device 150, and the like
The upper and lower paper feed cassettes 103 and 104 are inserted into one side of the apparatus main body 100, and a paper discharge tray 105 is provided in the other side.

By the way, as shown in FIG. 16, when the front door 106 of the apparatus main body 100 is opened, the belt conveying section 12 is opened.
0 and the large-sized paper feeding device 150 can be taken in and out in the front-rear direction. After the belt conveyance unit 120 is loaded into the apparatus main body 100, the engagement provided on a part of the belt conveyance unit 120 is performed. The unit 121 is loaded and set at a predetermined position in the apparatus main body 100 by engaging the support unit 107 on the apparatus main body 100 side. Large-size paper feeder 1
The lock 50 is locked at a predetermined position by operating the lock lever 151 after loading it into the apparatus main body 100.

A projection 10 is provided inside each front door 106.
8 (only one is shown) are provided, and when both front doors 106 are closed, the projection 108 engages with the receiving portion 109 on the apparatus main body 100 side to lock both front doors.

By the way, as shown in the figure, the copying machine is installed at a predetermined position with respect to the floor surface 200 by fixing the L-shaped sheet metal 161 to the apparatus main body 100 and the floor surface 200 with bolts 162.

Alternatively, as shown in FIG. 17, the copying machine is installed on the floor surface 200 by an adjuster 163 provided at the bottom of the apparatus main body 100 so that the height of the copying machine can be adjusted. Here, the adjuster 163 includes an adjusting screw 163a and a base member 163b. The base member 163b supports the weight of the apparatus main body 100 and is in contact with the floor surface 200 with a predetermined contact force. Then, the adjusting screw 163
a through which a Z-shaped sheet metal 164 is inserted.
4 was fixed to the floor surface 200 with bolts 165, whereby the apparatus main body 100 was installed and fixed at a predetermined position.

[0008]

The installation structure of the conventional copying machine shown in FIG. 15 and FIG. 16 or FIG.
Since 00 is completely fixed (rigidly coupled) to the floor surface 200 (or wall surface), the apparatus main body 100 does not move, and it seems that it is effective against external forces such as an earthquake, an excessive shock or vibration. The L-shaped sheet metal 1 shown in FIGS.
61 and the apparatus main body 100 of the Z-shaped sheet metal 164 shown in FIG.
The impact force on the mounting portion (for example, the bottom surface or front surface of the apparatus main body 100 or the side cover surface) or the floor surface 200 becomes excessive, and the portion that receives the large impact force may be damaged or destroyed. is there.

Further, as shown in FIG. 16, the front door 106 opens in the direction of the arrow shown in the figure due to an excessive impact force, etc., and the belt conveying section 120 and the large-size paper feeding device 150 face the front of the apparatus in the arrow shown in the figure. There is a possibility that the paper feed cassettes 103 and 104 and the paper discharge tray 105 may fall out in addition to popping out in a direction to block an evacuation route or aisle in the event of a disaster, damage functional components inside the apparatus main body 100, and so on.

Further, in office equipment in which the height of the apparatus main body is high and the position of the center of gravity is above, even if the lower part is fixed to a floor or the like as in the conventional case, the apparatus main body falls over or the upper unit (for example, In some cases, the scanner unit, the document processing device, etc.) may fall off, and the connection cable between the units and the power supply cable may be disconnected.

The present invention has been made in view of the above problems, and its object is to prevent the office equipment itself from falling down or moving greatly even when an external force such as an excessive shock or vibration is applied when an earthquake occurs. An object of the present invention is to provide an external force absorbing means capable of preventing the unit from falling off, relaxing the acceleration applied to the inside of the apparatus and preserving the functions of internal parts and units, and an installation structure of office equipment using the external force absorbing means.

[0012]

In order to achieve the above object, the invention according to claim 1 is a fixing means fixed to a floor surface or a wall surface, and a loosening means for expanding by receiving an external force of a predetermined value or more, Between the locking means, which is attached to at least one end of the loosening means and is locked to the fixing means, and which is held by the loosening means to restrict relative movement of the loosening means in at least one direction, and between the loosening means. It is characterized in that the external force absorbing means is configured to include a locking means that causes a slippage with the loosening means when a tension of a predetermined value or more acts.

According to a second aspect of the present invention, in the first aspect of the present invention, the locking means is composed of two plate members which are joined by an adjusting screw to hold the loosening means.

According to a third aspect of the present invention, in the first aspect of the present invention, a housing that movably inserts the locking means into the loosening means, and a free end portion of the housing which is held by the housing and is bent. It is characterized in that the taper portion is formed and an elastic member is included at the tip of the taper portion to engage with the loosening means and lock the movement of the loosening means in one direction.

According to a fourth aspect of the present invention, in the invention according to the first aspect, the locking means is a lock member for tightening the loosening means to lock the movement of the loosening means in one direction, and is oblique to the loosening means. A taper portion that is installed to form a wedge-shaped space between the taper portion and the loosening means; a biasing means that biases the lock member in one direction within the wedge-shaped space to bring the lock member into contact with the taper portion; It is characterized by including an adjusting means for adjusting the locking force of the loosening means by the locking member by changing the angle of the portion.

According to a fifth aspect of the present invention, in the first aspect of the present invention, the locking means is a lock member for tightening the loosening means to lock movement of the loosening means in one direction, and the locking means is oblique to the loosening means. A taper portion that is installed and forms a wedge-shaped space between the loosening means and a biasing means that biases the lock member in one direction within the wedge-shaped space to bring it into contact with the taper portion; It is characterized by including an adjusting means for changing the biasing force of the biasing means to adjust the locking force of the loosening means by the locking member.

According to a sixth aspect of the present invention, in the first aspect of the present invention, the locking means includes a winding drum that rotates by rotating one end of the loosening means, and a loosening direction of the loosening means of the winding drum. A one-way drum with a torque limiter function configured to include a torque limiter unit that restricts rotation and allows rotation of the winding drum when a torque of a predetermined value or more is applied to the winding drum through the loosening unit. Is characterized by.

According to a seventh aspect of the present invention, in the first to fifth or sixth aspects of the invention, there is provided a tension applying means for automatically absorbing the slack generated in the slackening means and applying a predetermined tension to the slackening means. It is characterized by being provided.

The invention described in claim 8 is characterized in that, in the invention described in claim 7, the tension applying means is constituted by a spring member incorporated in the relaxing means.

A ninth aspect of the present invention is characterized in that, in the seventh aspect of the invention, the tension applying means is constituted by a compression spring that is compressed between the locking means and the loosening means.

According to a tenth aspect of the present invention, a fixing means fixed to a floor surface or a wall surface, a loosening means for expanding by receiving an external force of a predetermined value or more, and the fixing means attached to at least one end of the loosening means. Between the retaining means and the retaining means, which is retained by the releasing means to restrict relative movement of the releasing means in at least one direction and when a tension of a predetermined value or more acts between the releasing means. The installation structure of the office equipment using the external force absorbing means configured to include the locking means that causes slippage is fixed to the fixing means via the locking means at one end of the loosening means of the external force absorbing means, The loosening means is passed through a part of the office equipment and is stretched so as to surround the lower part of the office equipment from the outside in a state of being abutted, and the other end of the loosening means is attached to the floor surface or Wall or above It is characterized in that it is configured to be locked to a fixing means.

According to an eleventh aspect of the present invention, a fixing means fixed to a floor surface or a wall surface, a loosening means for expanding by receiving an external force of a predetermined value or more, and the fixing means attached to at least one end of the loosening means. Between the retaining means and the retaining means, which is retained by the releasing means to restrict relative movement of the releasing means in at least one direction and when a tension of a predetermined value or more acts between the releasing means. The installation structure of the office equipment using the external force absorbing means including the locking means that causes slippage is fixed to the fixing means or the office equipment via the locking means at one end of the relaxation means of the external force absorbing means. However, the other end of the slackening means is configured to be locked to the fixing means or office equipment via the locking means.

Therefore, according to the present invention, in the event of an earthquake or an excessive shock or vibration, the stretching means stretched around the apparatus body of the office equipment can generate an excessive shock or vibration force. It receives and extends through the main body, and the extension of this relaxation means absorbs and relaxes excessive impact force and vibration force, and also reduces the acceleration applied to the inside of the device main body, so that the device main body is prevented from falling and the unit It is prevented from falling off, and the functions of internal parts and units are maintained. Further, although the device body may move a little due to the extension of the relaxation means, the movement amount is regulated by the relaxation means, so that a problem such as a large movement of the device body to block a passage or an evacuation route occurs. do not do.

Since the slackening means does not expand under an external force of a predetermined value or less, the office equipment does not move due to some shock or vibration in normal use, and the office equipment is fixedly installed at a predetermined position. To be done.

Further, an excessive external force that cannot be completely absorbed by the extension of the loosening means is effectively absorbed by the frictional resistance generated by the sliding of the locking means. The frictional resistance can be appropriately adjusted according to the weight of the office equipment.

Further, the length of the loosening means can be easily adjusted according to the size of the office equipment, and an appropriate tension can be applied to the loosening means.

[0027]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

<First Embodiment> FIG. 1 is a side view of an office machine fixedly installed by an external force absorbing means according to the first embodiment of the present invention, FIG. 2 is a perspective view of the external force absorbing means, and FIG. FIG. 4 is a partial perspective view showing a structure for fixing a locking member constituting the external force absorbing means to the wire, and FIG. 4 is an exploded perspective view of a lock member constituting the external force absorbing means.

In FIG. 1, reference numeral 1 denotes a main body of office equipment such as a copying machine, which is movably supported on a floor 2 by a plurality of casters 3.

By the way, an L-shaped fixing member 4 is fixed on the floor surface 2 by a bolt 5, and this fixing member 4
The hook portion 7a of the locking member 7 fixed to one end of the wire 6 which is the loosening means is hooked in the elongated hole 4a (see FIG. 2) formed in the. Then, the wire 6 is passed through the long hole 8a of the fixing bracket 8 fixed to the lower part of the device body 1 and arranged between the bottom plate 1a of the device body 1 and the floor surface 2,
The fixing member 4 is stretched so as to surround the periphery of the apparatus main body 1 from the outside in a state of being in contact with the caster 3 (and an adjuster (not shown)), and the other end is provided with a locking member 9 having a length adjusting function. It is locked to a fixing member (not shown) similar to.

As shown in FIG. 3, the locking member 7 is passed through one end of the wire 6 and is crimped, and the hook portion 7a is integrally formed at the tip thereof.

Further, as shown in FIG. 4, the lock member 9 is composed of a fixed plate 9A integrally provided with a hook portion 9a to be locked by a fixed member (not shown) and a rectangular flat plate-shaped adjusting plate 9B. The lock member 9 is fixed to the wire 6 by inserting the wire 6 between the fixing plate 9A and the adjusting plate 9B and binding the fixing plate 9A and the adjusting plate 9B with two adjusting screws 10.

As described above, one end of the wire 6 is locked to the fixing member 4 via the locking member 7, but the worker (serviceman or user) can adjust the adjusting screw of the lock member 9. Loosen 10 and pull the wire 6 so that the wire 6 is caster 3 (and an adjuster (not shown))
The apparatus main body 1 can be stretched so as to surround the apparatus body 1 from the outside without slack in a state of contacting with, and the adjusting screw 10 is tightened in a state in which the hook portion 9a of the lock member 9 is locked to a fixing member (not shown). By fixing the lock member 9 to the wire 6 by tensioning the wire 6, a predetermined tension can be applied to the wire 6. The wire 6 is a lock member 9
The length (the length between the locking member 7 and the locking member 9) can be freely adjusted by loosening the adjusting screw 10 of the wire 6, and the wire 6 can be similarly used for various office equipment having different sizes. It can be stretched around the apparatus main body 1 with a predetermined tension. Also, the adjusting screw 10 of the lock member 9
The binding force (locking force) of the lock member 9 to the wire 6 can be arbitrarily adjusted by adjusting the tightening force of.

By the way, although the case where one wire is stretched so as to surround the periphery of the main body from the outside has been described above, a plurality of wires are used and each wire is preliminarily provided on another bottom surface (or wall surface). A configuration may be adopted in which a plurality of wires are locked to a fixed member (not shown) that is fixed and the plurality of wires are sequentially locked to the fixing member so as to surround the apparatus main body from the outside as a whole.

Although the size of the apparatus body 1 and the distance between the casters 3 and the adjuster (not shown) are different depending on the type of office equipment, the wire 6 is attached to the lower portion of the apparatus body 1 so that the wire 6 does not come off from the apparatus body 1. The wire 6 is passed through the fixed bracket 8 (see FIG. 1) that is fixed and a hole (not shown) that opens in the bottom plate 1a of the apparatus body 1.

The wire 6 described above, the locking member 7 and the locking member 9 fixed to the wire 6, and the fixing member 4 for fixing the wire 6 via the locking member 7 and the locking member 9 Although the external force absorbing means according to the invention is constructed, in the event of an earthquake or an excessive shock or vibration,
The wire 6 stretched around the apparatus body 1 of the office equipment receives an excessive impact force or a vibration force via the apparatus body 1 and extends, and the extension of the wire 1 absorbs and relaxes the excessive impact force or the vibration force. At the same time, the acceleration applied to the inside of the apparatus body 1 is alleviated, so that the apparatus body 1 is prevented from falling, the unit is prevented from falling off, and the functions of the internal parts and the unit are maintained. And in this case, the wire 6
Although the device body 1 may move a little due to the extension of the wire, the amount of movement is restricted by the wire 6,
There is no problem that the main body 1 of the apparatus largely moves to block an aisle or an evacuation route.

Since the wire does not expand when an external force of a predetermined value or less is applied, the apparatus body 1 does not move due to a slight shock or vibration in a normal use state, and the office equipment is fixedly installed at a predetermined position. To be done.

An excessive external force that cannot be completely absorbed by the extension of the wire 6 is effectively absorbed by the frictional resistance generated by the sliding of the lock member 9 with respect to the wire 6. It is possible to appropriately adjust the tightening force of the adjusting screw 10 of the lock member 9 by changing the tightening force.

As described above, the external force absorbing means according to the first embodiment absorbs and relaxes the external force such as the impact force or the vibration force by the extension of the wire 6 when the wire 6 is subjected to the excessive impact force or the vibration force. The apparatus body 1 of the office equipment is protected against excessive shock and vibration, but the wire diameter, the wire diameter, the material, the cross-section pattern, and the twisting method of the wire 6 against the preset external force. Etc. can be appropriately set in design, and as a result thereof, the elongation rate of the wire 6 can be set to a value that matches the purpose.

<Second Embodiment> Next, a second embodiment of the present invention will be described with reference to FIGS. 5 is a perspective view of the external force absorbing means according to the second embodiment of the present invention, and FIG.
6 is an enlarged partial sectional view of a lock member that constitutes the external force absorbing means (enlarged sectional view of the portion A in FIG. 5), in which the same elements as those shown in FIGS. are doing.

The external force absorbing means according to the present embodiment is also configured to include the wire 6 shown in FIG. 5, the locking member 7 and the locking member 11 fixed to the wire 6, and like the first embodiment,
One end of the wire 6 is locked to the fixing member 4 (see FIG. 1) via the locking member 7 and is passed through the long hole 8a (see FIG. 1) of the fixing bracket 8 fixed to the lower portion of the apparatus body 1. The caster 3 is arranged between the bottom plate 1a of the apparatus body 1 and the floor surface 2.
(And an adjuster (not shown)) is stretched so as to surround the periphery of the apparatus main body 1 from the outside, and its terminal end is locked to a fixing member similar to the fixing member 4 via a locking member 11. Has been done.

Thus, in this embodiment, the structure of the adjusting lock member 11 is different from that of the lock member 9 according to the first embodiment.

That is, the lock member 11 according to the present embodiment.
Has a housing 12 integrally provided with a hook portion 12a and a lid member 13 screwed onto the outer periphery of the end portion of the housing 12, and an elastic body attachment portion 14 is provided at the center of the lid member 13. . Then, through holes 12a and 14a are concentrically provided at the central portions of the housing 12 and the elastic body mounting portion 14, respectively, and the wire 6 is inserted into both through holes 12a and 14a.
Has been passed.

Further, a plurality of elastic bodies 15 are attached to the outer peripheral portion of the elastic body attachment portion 14, and a part (free end portion) of each elastic body 15 is bent to face leftward in FIG. To form a tapered portion 15a. The tip of each elastic body 15 is in contact with and engaged with the wire 6.

Also in the external force absorbing means according to the present embodiment having the lock member 11 configured as described above, one end of the wire 6 has the locking member 7 as in the first embodiment (see FIG. 1). Is fixed to the fixing member 4 through the wire 6, and the wire 6 is passed through the fixing bracket 8.
And the floor surface 2, and is stretched so as to surround the periphery of the apparatus main body 1 from the outside in a state of being in contact with the caster 3 (and an adjuster (not shown)). When the wire 6 is pulled in the direction of the arrow in FIG. 6 while being hooked on a fixing member (not shown) and locked, the wire 6 passes through the tapered portion 15a of the elastic body 15 and moves in the same direction. When the pulling of the wire 6 is stopped, the tip of the elastic body 15 bites into the wire 6 and the movement of the wire 6 in the opposite direction (counter arrow direction in FIG. 6) is prevented, so that the wire 6 is completely removed. Fixed state (locked state)
Then, a predetermined tension is applied to this.

Therefore, even when an earthquake or an excessive shock or vibration occurs, the lock member 11 keeps the wire 6 in the locked state by engaging the wire 6 with the fixing member (not shown), so that the office equipment The wire 6 stretched around the apparatus body 1 receives the excessive impact force or the vibration force via the apparatus body 1 and extends, and the extension of the wire 1 absorbs and relaxes the excessive impact force or the vibration force, The same effect as that of the first embodiment can be obtained.

Also in the present embodiment, the wire 6
An excessive external force that cannot be completely absorbed by the expansion of the wire is effectively absorbed by the frictional resistance generated by the sliding of the lock member 11 with respect to the wire 6.

<Third Embodiment> Next, a third embodiment of the present invention will be described with reference to FIGS. FIG. 7 is a perspective view of the external force absorbing means according to the third embodiment of the present invention, and FIG.
Is a cross-sectional view showing the details of the structure of the lock member of the external force absorbing means, and FIG. 9 is a cross-sectional view showing a modification of the lock member. In these drawings, the same elements as those shown in FIGS. 1 to 4 are the same. The code is attached.

The external force absorbing means according to the present embodiment comprises a wire 6 shown in FIG. 7, a locking member 7 fixed to the wire 6, a locking member 16 and a fixing member 4 fixed on the floor surface. However, a coil spring 17 is provided in a portion of the wire 6 near the lock member 16.

Thus, in the external force absorbing means according to the present embodiment, one end of the wire 6 is locked to the fixing member 4 via the locking member 7 as in the first embodiment (see FIG. 1). And is passed between the bottom plate 1a of the apparatus body 1 and the floor surface 2 through the long hole 8a of the fixing bracket 8 fixed to the lower portion of the apparatus body 1, and hits the caster 3 (and an adjuster (not shown)). The apparatus main body 1 is stretched so as to surround the periphery of the apparatus main body 1 from the outside in a state of being in contact with each other, and its end portion is locked to the fixing member (not shown) similar to the fixing member 4 via the locking member 16. The slack of the wire 6 is removed by the coil spring 17, and a predetermined tension is constantly applied to the wire 6.

Further, the lock member 16 has a length of the wire 6 (a length between the locking member 7 and the lock member 16) and a lock force for locking the wire 6 in accordance with the size and weight of the apparatus body 1 as appropriate. Is used in combination with the coil spring 17, and as described above, the slack of the wire 6 is absorbed by the contraction of the coil spring 17, and
It is possible to always secure appropriate tension.

The structure and operation of the lock member 16 will be described with reference to FIG.

The lock member 16 has a housing 18 integrally provided with a hook portion 18a and an adjusting knob 19 screwed into the housing 18, and an elastic body is provided at one end of the adjusting knob 19 facing the housing 18. 20 is integrally formed. Further, through holes 18b and 19a are concentrically provided at the central portions of the housing 18 and the adjustment knob 19, and the wire 6 is passed through these through holes 18b and 19a.

By the way, the elastic body 20 formed integrally with the adjusting knob 19 is formed with a taper portion 20a which is bent at the illustrated angle θ and is squeezed rightward in FIG. 20a is swingable around a bending point, and its tip is pressed against a wall 18c inside the housing 18. A plurality of lock balls 21 are housed in a wedge-shaped space surrounded by the elastic body 20 so as to sandwich the wire 6, and the lock balls 21 are biased by a compression spring 22 to taper the elastic body 20. Part 2
It is abutted against 0a with a light pressure.

Thus, the lock member 1 having the above structure
6, when the wire 6 is pulled in the arrow direction (rightward direction) of FIG. 8, the lock ball 21 follows the movement of the wire 6 and moves in the same direction, and bites between the taper portion 20a of the elastic body 20 and the wire 6. , Tighten the wire 6 to lock it. The locking force of the lock member 16 at this time is adjusted by adjusting the tightening amount of the adjustment knob 19 and the elastic body 20.
It is adjusted by changing the angle θ of the tapered portion 20a. Here, the following relationship is generally established between the locking force, the tightening amount of the adjustment knob 19, and the angle θ of the taper portion 20a of the elastic body 20.

That is, the smaller the tightening amount of the adjusting knob 19, the smaller the angle θ of the taper portion 20a of the elastic body 20 and the larger the locking force. However, this relationship holds when the lock ball 21 does not abut the wall 18c in the housing 18.

On the other hand, when the wire 6 is pulled in the opposite direction (leftward in FIG. 8), the lock ball 21 is dragged by the wire 6 and moves in the same direction.
0a is released and the tightening on the wire 6 is released so that the wire 6 is free to move to the left in FIG.

As described above, the lock member 16 locks the wire 6 when the wire 6 is pulled rightward in FIG. 8, and unlocks when the wire 6 is pulled leftward. Therefore, the operator can appropriately adjust the length of the wire 6 (the length between the locking member 7 and the lock member 16) and the tension applied to the wire 6.

Further, the locking force of the wire 6 can be appropriately adjusted according to the weight of the apparatus main body 1. For example,
When the weight of the device body 1 is large, the locking force can be increased to such an extent that the impact on the device body 1 due to an earthquake or the like does not exceed the allowable range. By doing so, the movement of the device body 1 when an earthquake occurs Can be suppressed to a predetermined amount or less.

In the lock member 16 shown in FIG. 8, the lock force is adjusted by changing the angle θ of the taper portion 20a of the elastic body 20, but the force for urging the lock ball toward the taper portion is adjusted. The lock force can also be adjusted by making it variable. FIG. 9 shows an example of the lock member capable of adjusting the lock force by changing the force for urging the lock ball toward the taper portion.

The lock member 23 shown in FIG.
A housing 24 formed integrally with 4a and formed in a tapered shape toward the right in FIG. 9, an adjustment knob 25 screwed into the housing 24 so as to be able to move forward and backward, and a wedge-shaped space formed in the housing 24. A plurality of stored lock balls 21
And a compression spring 22 for urging the lock ball 21 against the tapered portion 24b on the inner circumference of the housing 24. In the lock member 23, the compression spring is adjusted by adjusting the tightening amount of the adjustment knob 25. The length (spring force) of 22 is changed so that the force for urging the lock ball 21 against the tapered portion 24b of the housing 24 is variable. At this time, the following relationship is established between the lock force, the tightening amount of the adjustment knob 25, and the force (spring force) that biases the lock ball 21 to the tapered portion 24b.

That is, as the tightening amount of the adjusting knob 25 becomes larger, the length of the compression spring 22 becomes shorter and the force for urging the lock ball 21 toward the taper portion 24b becomes larger, so that the lock force becomes larger. The lock member 23 shown in FIG. 9 is different from the lock member 16 shown in FIG. 8 in that the lock force increases when the adjustment knob 25 is tightened. However,
The handling method when the operator installs the apparatus main body by using the external force absorbing means is exactly the same as that when the lock member 16 shown in FIG. 8 is used.

Thus, the external force absorbing means according to this embodiment has an impact force due to the extension of the wire 6 and the sliding of the lock member 16 (23) when an external force such as an excessive impact or vibration is applied to the wire 6. Since the vibration force can be absorbed and relaxed, the same effect as that obtained in the above-mentioned embodiment can be obtained, and the wire diameter, the wire diameter, the material, and the cross-section pattern of the wire 6 with respect to the preset external force. The twisting method, the spring constant of the coil spring 17 and the like can be appropriately set in terms of design, and as a result, the elongation rate of the wire 6 can be set according to the purpose.

If the external force absorbing means according to the present embodiment is used, the lock force of the lock member 16 (23) can be appropriately adjusted by the adjusting knob 19 (25) to meet the purpose. Then, by incorporating the coil spring 17 in the wire 6, it is possible to apply appropriate tension and tension to the wire 6.

By the way, the wire has a property that it does not return to its original length once it is stretched, because the twist of the wire that applies tension to the wire remains returned. In the case where only the wire is used as the loosening means, if a strong impact is applied to the main body of the apparatus even once, the wire is stretched and remains slack.
Then, when a shock is applied to the device body next time, since the device body can freely move within the range of extension of the wire, the movement of the device body collides with the wire in a momentum,
There is a possibility of giving a strong shock to the wire. as a result,
It may cause excessive elongation or cutting of the wire.

However, as in the present embodiment, the wire 6
When the coil spring 17 is combined with the coil spring 17, the slack of the wire 6 is absorbed by the contraction of the coil spring 17, and appropriate tension and tension are always applied to the wire 6 as described above.

The external force absorbing means according to the present embodiment is the wire 6, the coil spring 17, the locking member 7 and the locking member 1.
6 (23) and the fixing member 4 make it simple and compact, so that the handling including the installation of the office equipment is improved.

<Fourth Embodiment> Next, a fourth embodiment of the present invention will be described with reference to FIGS. FIG.
0 is a perspective view of the external force absorbing means according to Embodiment 4 of the present invention, FIG. 11 is a side sectional view of a one-way drum with a torque limiter function (a sectional view taken along the line BB of FIG. 12), and FIG.
13 is a cross-sectional view taken along line C-C of FIG. 13, and FIG. 13 is a view showing a dynamic model using the external force absorbing means according to the fourth and third embodiments, and in these drawings as well, as shown in FIGS. 1 to 4. The same elements are designated by the same reference numerals.

The external force absorbing means according to this embodiment is shown in FIG.
As shown in 0, the wire 6, a locking member 7 fixed to one end of the wire 6, a fixing member 4 fixed on the floor surface 2 and a one-way drum 26 with a torque limiter function are configured. The other end of the wire 6 is wound around the one-way drum 26.

Thus, in the external force absorbing means according to the present embodiment, one end of the wire 6 is locked to the fixing member 4 via the locking member 7 as in the first embodiment (see FIG. 1). And is passed between the bottom plate 1a of the apparatus body 1 and the floor surface 2 through the long hole 8a of the fixing bracket 8 fixed to the lower portion of the apparatus body 1, and hits the caster 3 (and an adjuster (not shown)). It is stretched so as to surround the periphery of the apparatus main body 1 from the outside in a state of being in contact with each other, and the other end thereof is the fixing member 4 of the floor surface 2.
Is wound around the one-way drum 26 fixed in the vicinity of, and the wire 6 is wound by the automatic winding function of the one-way drum 26 (same as the cord winding function of the vacuum cleaner) to remove looseness, The required tension is applied to this.

Thus, in the external force absorbing means according to the present embodiment, the excessive impact or vibration applied to the apparatus body 1 of the office equipment is absorbed to some extent by the elongation of the wire 6, but the elongation of the wire 6 is absorbed. The shock and vibration that cannot be completely absorbed even by the one-way drum 26 are absorbed by the rotation of the one-way drum 26. In this case, the one-way drum 26 automatically winds the extension of the wire 6 due to the impact or vibration applied to the main body device 1, so that the wire 6 always has a certain tension. Further, the automatic winding function of the one-way drum 26 arbitrarily adjusts the length of the wire 6 when the main body device 1 of the office equipment is installed on the floor surface 2 by using the external force absorbing means according to the present embodiment. be able to.

Here, the structure and operation of the one-way drum 26 with the torque limiter function will be described with reference to FIGS. 11 and 12.

One-way drum 2 with torque limiter function
6 has a shaft 27 fixed vertically on the floor surface 2,
A cylindrical inner ring 28 is fitted onto the shaft 27 so that the inner ring 28
Is fixed to the shaft 27 by a key 29.

An outer ring 30 constituting a winding drum is rotatably supported by a plurality of needle rollers 31 and fitted and held on the inner ring 28, and a wire 6 is wound around the outer ring 30. One end of the wire 6 is attached to the outer circumference of the outer ring 30 with a screw 32. In addition, a plurality of concave grooves 30a are formed on the inner peripheral portion of the outer ring 30.
The needle rollers 31 are urged by the springs 33 to be brought into contact with the tapered surfaces forming a part of the concave grooves 30a with a light pressure. The outer ring 30
As shown in FIG. 12, a wedge-shaped gap whose width dimension gradually changes in the circumferential direction is formed between each recessed groove 30a formed in the inner ring 28 and the outer peripheral surface of the inner ring 28, and the needle roller 31 is formed in this gap. Is housed by being biased in one direction by a spring 33.

By the way, the inner ring 2 is located on the outer peripheral side of the shaft 27.
A spirally wound mainspring 34 is provided below the outer ring 8 and the outer ring 30, one end of the mainspring 34 is fixed to the inner ring 28, and the other end is fixed to the outer ring 30. The outer ring 30 is urged in the clockwise direction (direction of winding the wire 6) in FIG. 12 by the mainspring 34. As shown in FIG. 12, a part 30b of the outer ring 30 is cut out, and the screw 3 for connecting the cutout 30b is formed.
The tightening force of the outer ring 30 is adjusted by turning 5 to change the diameter of the outer ring 30.

In the one-way drum 26 with the torque limiter function configured as described above, the wire 6 is used as shown in FIG.
When the outer ring 30 is rotated counterclockwise by pulling it in the direction of the arrow 2, the needle roller 31 bites into the narrow portion of the wedge-shaped gap, and the outer ring 30 is blocked from further rotation and locked. The limiter force at this time is adjusted by rotating the screw 35 to change the tightening force of the outer ring 30.

On the other hand, when the outer ring 30 is rotated in the opposite direction (clockwise in FIG. 12), the needle roller 31 separates from the wedge-shaped gap and allows the outer ring 30 to rotate in the same direction, so the same direction (wire The outer ring 30 can be rotated with a low torque in the winding direction (6). As described above, the outer ring 30 is always urged in the clockwise direction of FIG. 12 (the direction in which the wire 6 is wound) by the mainspring 34. Therefore, when the wire 6 is loosened, the outer ring 30 is moved by the mainspring 34 as shown in FIG. Rotate clockwise to wire 6
Absorbs slack.

Thus, the external force absorbing means according to the present embodiment has the ability to absorb shock and vibration as in the third embodiment, but when shock or vibration is repeatedly applied to the apparatus body of the office equipment. However, it is possible to exert a certain shock and vibration absorption capacity. Here, the mechanical difference between the external force absorbing means according to the third embodiment and the fourth embodiment is shown in FIG.
3 (a) and 3 (b) will be used for explanation.

That is, FIG. 13A shows a dynamic model using the external force absorbing means according to the fourth embodiment, and FIG.
(B) shows a dynamic model using the external force absorbing means according to the third embodiment.

In FIG. 13, 1 is an office equipment main body, 2 is a floor surface, 3 is a caster, 6 is a wire which is a loosening member,
36 is a spring that absorbs the extension of the wire 6, and 37 is a friction damper that functions only in the extension direction of the wire 6 (one-way with the lock function of the lock member 16 (23) in the third embodiment or the torque limiter function of the fourth embodiment. This corresponds to the limiter function of the drum 26).

In the mechanical model shown in FIG. 13 (b) corresponding to the third embodiment, when an impact is applied to the office equipment body 1 in the right direction in the figure, the impact force is absorbed by the spring 36, the friction damper 37 and the wire 6. It At this time, the wire 6 extends due to the impact force, but the extension is absorbed by the spring 36. However, when the office equipment main body 1 is returned to the original position after the wire 36 has once stretched, the contracting force of the spring 36 is weakened by the amount that the extension of the wire 6 is absorbed. Shock absorption becomes weak.

On the other hand, in the dynamic model shown in FIG. 13A corresponding to the fourth embodiment, the office equipment body 1
When a shock is applied to the right side of the figure, the shock is applied to the friction damper 3
7 and wire 6 absorb. At this time, FIG.
The wire 6 stretches similarly to the mechanical model shown in (b), but the stretch is absorbed by the spring 36. For this reason, the contracting force of the spring 36 is weakened by the amount that the extension of the wire 6 is absorbed.

However, in the dynamic model shown in FIG. 13A corresponding to the fourth embodiment, the friction damper 37
Since the wire 6 absorbs the shock, the shock absorbing ability does not change even if a new shock is applied after the office equipment body 1 is returned to its original position.

In the above, if the office equipment body 1 is installed on the floor surface 2 by using the external force absorbing means according to the present embodiment, the excessive shock or vibration applied to the office equipment body 1 may cause the extension of the wire 6. The one-way drum 26 with the torque limiter function is effectively absorbed and relaxed by the rotation, but the one-way drum 26 with the torque limiter function is easier to be larger than the lock member 16 (23) shown in the third embodiment. Is installed in a different location,
There is a problem that a relatively large space is required under the office equipment body 1.

However, if the external force absorbing means according to the present embodiment is used, there is a merit that even if the office equipment body is repeatedly subjected to shock and vibration, a constant shock and vibration absorbing ability is exerted. Therefore, the external force absorbing means according to the present embodiment is particularly effective when there is a space in the lower surface of the office equipment body and durability is important.

<Fifth Embodiment> Next, a fifth embodiment of the present invention will be described with reference to FIG. FIG. 14 is a perspective view showing an external force absorbing means according to the fifth embodiment of the present invention with a lock member in section, and in this figure, the same elements as those shown in FIG. There is.

The external force absorbing means according to the present embodiment is similar to the external force absorbing means according to the third embodiment, and the wire 6
And a locking member 7 fixed to this, a locking member 38, and a fixing member (not shown) fixed on the floor surface. However, unlike the third embodiment, a coil spring is incorporated in the wire 6. It is not.

Further, the lock member 38 is different from the lock member 16 (see FIG. 8) shown in the third embodiment in the following points. That is, the adjustment knob 39 of the lock member 38 is extended to form a cylindrical guide sleeve 39a,
A spring seat 41 fixed to the end of the wire 6 by a screw 40 is slidably fitted in the guide sleeve 39a, and the spring seat 41 is a compression spring compressed in the guide sleeve 39a. It is urged by 42 in the direction of the arrow in FIG. 14 (the direction in which the wire 6 is stretched). The other structure of the lock member 38 is the same as that of the lock member 16 shown in the third embodiment.

Thus, also in the external force absorbing means according to the present embodiment, one end of the wire 6 is locked to the fixing member 4 via the locking member 7 as in the first embodiment (see FIG. 1). And is passed between the bottom plate 1a of the apparatus body 1 and the floor surface 2 through the long hole 8a of the fixing bracket 8 fixed to the lower portion of the apparatus body 1, and hits the caster 3 (and an adjuster (not shown)). It is stretched so as to surround the periphery of the apparatus main body 1 from the outside in a state of being in contact with each other, and the end portion thereof is locked to a fixing member similar to the above-mentioned fixing member via a locking member 38, but the wire 6 is Compression spring 42 provided on the lock member 38
The slack is removed by and the predetermined tension is always applied.

Therefore, if the office equipment body 1 is installed on the floor surface 2 by using the external force absorbing means according to the present embodiment, the wire 6 will not generate excessive shock or vibration applied to the office equipment body 1.
Is effectively absorbed and relaxed by the frictional resistance generated by the elongation of the lock member 38 and the sliding of the lock member 38, and even if the office equipment body 1 is repeatedly subjected to shocks and vibrations, the shocks and vibrations of the external force absorbing means are similar to the fourth embodiment. Absorption capacity does not change, and a certain shock and vibration absorption capacity is exhibited.

However, in the external force absorbing means according to the present embodiment, the lock member 38 is provided with the compression spring 42 and the guide sleeve 3.
Since 9a is added, there is a problem that the lock member 38 becomes large.

However, if the external force absorbing means according to the present embodiment is used, there is a merit that even if the office equipment body 1 is repeatedly subjected to shocks and vibrations, a constant shock and vibration absorption capability is exhibited. Therefore, the external force absorbing means according to the present embodiment is particularly effective when there is a space in the lower surface of the office equipment body and durability is important.

In the first to fifth embodiments described above, the case where the wire is used as the loosening means has been described. However, the loosening means expands only when an external force of a predetermined value or more is applied. As long as it has a function to absorb and relax, it is possible to use belts, ropes, etc. in addition to wires, and design the material, shape and dimensions (width, thickness or diameter) of belts, ropes, etc. By appropriately setting, the elongation rates of these belts, ropes, etc. may be set to values that match the purpose.

[0094]

As is apparent from the above description, according to the present invention, when an earthquake or an excessive shock or vibration occurs, the loosening means stretched around the main body of the office equipment is provided. It receives excessive impact force and vibration force through the main body of the device and expands.
The expansion of the relaxation means absorbs and relaxes excessive impact force and vibration force, and also reduces the acceleration applied to the inside of the device body, so that the device body can be prevented from falling and the unit can be prevented from falling off, and internal parts can be prevented. The effect is that the functions of the units and units are preserved.

Further, according to the present invention, it is possible to obtain an effect that an excessive external force which cannot be completely absorbed by the loosening means is absorbed by the frictional resistance generated by the sliding of the locking means.

Further, according to the present invention, the length of the loosening means can be easily adjusted according to the size of the office equipment, and a desired tension can be applied to the loosening means. .

[Brief description of drawings]

FIG. 1 is a side view of an office machine installed by an external force absorbing means according to the present invention.

FIG. 2 is a perspective view of external force absorbing means according to the first embodiment of the present invention.

FIG. 3 is a partial perspective view showing a structure for fixing a locking member that constitutes the external force absorbing means according to Embodiment 1 of the present invention to a wire.

FIG. 4 is an exploded perspective view of a lock member that constitutes the external force absorbing means according to the first embodiment of the present invention.

FIG. 5 is a perspective view of an external force absorbing means according to Embodiment 2 of the present invention.

FIG. 6 is an enlarged partial sectional view (enlarged sectional view of a portion A in FIG. 5) of a lock member that constitutes an external force absorbing means according to the second embodiment of the present invention.

FIG. 7 is a perspective view of an external force absorbing means according to Embodiment 3 of the present invention.

FIG. 8 is a cross-sectional view of a lock member that constitutes external force absorbing means according to a third embodiment of the present invention.

FIG. 9 is a cross-sectional view showing a modified example of the lock member that constitutes the external force absorbing means according to the third embodiment of the present invention.

FIG. 10 is a perspective view of an external force absorbing means according to Embodiment 4 of the present invention.

FIG. 11 is a side cross-sectional view (cross-sectional view taken along the line BB of FIG. 12) of the one-way drum with a torque limiter function that constitutes the external force absorbing means according to the fourth embodiment of the present invention.

FIG. 12 is a sectional view taken along line CC of FIG. 11;

FIG. 13 is a diagram showing a dynamic model using the external force absorbing means according to the third embodiment and the fourth embodiment of the present invention.

FIG. 14 is a perspective view showing an external force absorbing means according to a fifth embodiment of the present invention with a lock member in section.

FIG. 15 is a front sectional view of a copying machine.

FIG. 16 is a perspective view showing a state of the copying machine when an earthquake occurs or when an excessive shock or vibration is applied.

FIG. 17 is a partial side view of the lower part of the office equipment showing the conventional example of the installation structure of the office equipment (copying machine).

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Device main body 2 Floor surface 4 Fixing member (fixing means) 6 Wire (relaxing means) 7 Locking member (locking means) 9, 16, 23, 28 Lock member 9A Fixing plate (plate member) 9B Adjusting plate (plate member) ) 10 adjusting screw 12 housing 15 elastic body (elastic member) 15a taper portion 17 coil spring (tension applying means) 20a, 24b taper portion 21 lock ball (lock member) 22 spring (biasing means) 26 one-way drum with torque limiter function 30 Outer ring (wrapping drum) 42 Compression spring (tensioning means)

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Junichi Sata 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Hisashi Otaka 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon (72) Inventor Kazuyoshi Chihisa 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc.

Claims (11)

[Claims] 1. Fixing means fixed to a floor surface or a wall surface,
A loosening means that is extended by an external force of a predetermined value or more, a locking means that is attached to at least one end of the loosening means and is locked to the fixing means, and at least one of the loosening means that is held by the loosening means. An external force absorbing means comprising a locking means that regulates relative movement in a direction and that causes a slippage with the relaxing means when a tension of a predetermined value or more acts on the relaxing means. 2. The external force absorbing means according to claim 1, wherein the locking means is composed of two plate members that are joined by an adjusting screw to sandwich the loosening means. 3. The lock means forms a taper portion by holding a housing that is movably inserted into the slackening means, the free end portion being held by the housing and being bent to form a taper portion, and the tip end of the taper portion is the slackening portion. The external force absorbing means according to claim 1, further comprising an elastic member that engages with the means and locks the movement of the relaxing means in one direction. 4. The lock member includes a lock member for tightening the loosening means to lock movement of the loosening means in one direction.
A taper portion that is installed obliquely with respect to the loosening means and forms a wedge-shaped space between the loosening means and the locking member, and biases the lock member in one direction within the wedge-shaped space to bring it into contact with the taper portion. 2. The external force absorbing means according to claim 1, comprising an urging means and an adjusting means for changing the angle of the tapered portion to adjust the locking force of the slackening means by the locking member. 5. The lock means includes a lock member for tightening the loosening means to lock movement of the loosening means in one direction.
A taper portion that is installed obliquely with respect to the loosening means and forms a wedge-shaped space between the loosening means and the locking member, and biases the lock member in one direction within the wedge-shaped space to bring it into contact with the taper portion. 2. The external force absorbing means according to claim 1, further comprising an urging means and an adjusting means for changing the urging force of the urging means to adjust the locking force of the slackening means by the locking member. . 6. The winding means rotates the winding drum by winding one end of the slackening means, and the rotation of the slackening means of the wrapping drum in a slack direction. 2. The external force absorbing means according to claim 1, wherein the external force absorbing means is a one-way drum with a torque limiter function including a torque limiter means for allowing the winding drum to rotate when a torque of a predetermined value or more is applied. 7. The external force absorbing device according to claim 1, further comprising a tension applying means for automatically absorbing the slack generated in the relaxing means and applying a predetermined tension to the relaxing means. means. 8. The external force absorbing means according to claim 7, wherein the tension applying means is composed of a spring member incorporated in the relaxing means. 9. The external force absorbing means according to claim 7, wherein the tension applying means is composed of a compression spring that is compressed between the locking means and the loosening means. 10. A fixing means fixed to a floor surface or a wall surface, a loosening means that extends by receiving an external force of a predetermined value or more, and a member attached to at least one end of the loosening means and locked to the fixing means. Locking means held by the stopping means and the relaxing means to restrict relative movement of the relaxing means in at least one direction, and to cause slippage with the relaxing means when a tension of a predetermined value or more acts on the relaxing means. An office equipment installation structure using an external force absorbing means configured to include, wherein one end of the relaxation means of the external force absorbing means is fixed to the fixing means via the locking means, and the relaxation means is The lower part of the office equipment is stretched so as to surround the lower part of the office equipment from the outside in a state where it is passed through a part of the office equipment and abutted against it, and the other end of the relaxation means is connected to the floor or wall surface or Locked to fixing means Installation structure of office equipment, characterized in that Shimete be configured. 11. A fixing means fixed to a floor surface or a wall surface, a slackening means that expands by receiving an external force of a predetermined value or more, and a member attached to at least one end of the slackening means and locked to the fixing means. Locking means held by the stopping means and the relaxing means to restrict relative movement of the relaxing means in at least one direction, and to cause slippage with the relaxing means when a tension of a predetermined value or more acts on the relaxing means. A structure for installing office equipment using an external force absorbing means comprising: an external force absorbing means, wherein one end of a relaxation means of the external force absorbing means is fixed to the fixing means or the office equipment via the locking means, An office equipment installation structure, characterized in that the other end of the means is configured to be locked to the fixing means or office equipment via the locking means.