JP2012031957A - Small-sized equipment and holding mechanism of the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide small-sized equipment and a holding mechanism of the small-sized equipment, which can prevent a connection part from being damaged when shock is added to the connection part between the small-sized equipment body and a linked device.SOLUTION: The small-sized equipment and the holding mechanism of the small-sized equipment includes a first holding part 6 having a first spherical receiver 8 at the end, in which a first spherical projection is fitted with a first spherical recess 2a, and rotated about the fulcrum of the first spherical projection, a second holding part 7 having a second spherical receiver 9 at the end, in which the spherical second projection is fitted with the second spherical recess 3a, and rotated about a fulcrum of the second spherical recess, an energizing member having a first elastic body 4 and a second elastic body 5 provided in the other end of the first holding part 6 and the other end of the second holding part 7 respectively, a spherical third projection fitted with the first spherical receiver 8 of the first holding part 6, a spherical fourth projection fitted with the second spherical receiver 9 of the second holding part 7, and the holding mechanism detachably held in a casing 1.

Description

The present invention relates to a small device and a holding mechanism for the small device.

In recent years, when individual identification for article management or the like is performed, management information of the article is stored, and data is written and called in a non-contact manner, which is also called a non-contact ID tag (also called an IC tag, a wireless tag, an RFID, or a data carrier) ) Is becoming widespread. The non-contact ID tag system using this non-contact ID tag is widely applied in the logistics process, and is expected to contribute to efficient operation by unifying the management of merchandise sales and inventory.

As one of the applications, an accounting processing system has been devised that uses a non-contact ID tag when paying a restaurant fee at a restaurant. In recent years, instead of a fixed reading sensor for reading a non-contact ID tag, a system using a hand-held non-contact ID tag reading terminal device (hereinafter referred to as a handy type ID tag reader) that can be carried by a store clerk has been adopted. ing. For example, taking inventory management in a store as an example, a store clerk holds an antenna part of a handy ID tag reader from above or from the side to read information recorded on a non-contact ID tag To enable quick inventory management and inventory.

As shown in FIG. 20, this handy ID tag reader can be used separately for a small device main body (ID tag reader) 100 and a cooperation device (information terminal) 30 used in cooperation. The small device main body (ID tag reader) 100 includes a reader, antenna, wireless communication device, battery, and the like that communicate data with a non-contact ID tag, and the cooperation device (information terminal) 30 includes a battery, a control unit, and a wireless device. Built-in communication device. The separated cooperation device (information terminal) 30 and the ID tag reader 100 can communicate with each other by the wireless communication device.

As shown in FIG. 20, the attachment mechanism of the cooperation device (information terminal) 30 used in cooperation with the small device main body (ID tag reader) 100 is a holding device attached to the information terminal 30 as the cooperation device with a screw. A structure is known in which a mount holder 36 as a mechanism is slid into a fixing groove 52 of a small device main body (ID tag reader) 100 and fixed by a lock hook 50 or the like. When the cooperative device (information terminal) 30 is removed from the small device main body (ID tag reader) 100, the mount holder 36 is removed from the fixing groove 52 by pressing the lock hook 50 against the urging force of the lock hook spring 51. It has become.

Further, as another example of a portable reader / writer having a case main body in which a control circuit is housed and a movable part configured to be able to contact and separate from the case main body, an apparatus described in Patent Document 1 is also known. .

JP 2001-256447 A

In such a small device mounting mechanism, the small device main body and the linked device are firmly connected, so when an impact is applied by dropping in the connected state, the connecting portion between the small device main body and the linked device is used. There is a disadvantage that a certain holding mechanism is broken.

It is an object of the present invention to provide a small device and a small device holding mechanism that can prevent the breakage of the connecting portion between the small device main body and the cooperation device when an impact is applied.

In order to achieve the above object, a small device of the present invention is a small device that detachably fixes a cooperative device to a small device body, and is adjacent to the first concave portion having a spherical shape and the first concave portion. And a first convex portion having a spherical shape provided in the middle portion of the casing is fitted into the first concave portion, and the first convex portion is provided. And a first holding portion having a first spherical receiving portion at one end and a spherical second convex portion provided in the middle portion are fitted into the second concave portion, A second holding part that rotates around the second convex part and has a second spherical receiving part at one end, the other end of the first holding part, and the other end of the second holding part Each of which is elastically biased in a direction in which one end of the first holding unit and one end of the second holding unit approach each other. An urging member having a sex body and a second elastic body, a fixing portion for fixing the cooperative device, and a third convex portion having a spherical shape to be engaged with the first spherical receiving portion of the first holding portion; And a fourth convex portion having a spherical shape that engages with the second spherical receiving portion of the second holding portion, and a holding mechanism that is detachably held with respect to the housing. Features. The holding mechanism for a small-sized device of the present invention is characterized by having [Claim 7].

The perspective view of the example of a combination of the small equipment which shows the 1st Embodiment of this invention. Schematic which shows the mechanism of 1st Embodiment. The perspective view of the hook holder support part of 1st Embodiment. The perspective view of the mount holder shape of 1st Embodiment. The mechanism figure of the hook holder and mount holder of 1st Embodiment. The figure which shows the motion of the hook holder of 1st Embodiment. The figure which shows the state which maximized the apparatus holding force of 1st Embodiment. The figure which shows the state which minimized the apparatus holding force of 1st Embodiment. The figure which shows the wire disconnection prevention structure of 1st Embodiment. The figure which shows the horizontal holding mechanism of 1st Embodiment. The figure which shows the state which minimized the apparatus holding force of 2nd Embodiment. The figure which shows the state which maximized the apparatus holding force of 2nd Embodiment. The figure which shows the apparatus attachment mechanism of 3rd Embodiment. The figure which shows the apparatus holding force maintenance mechanism of 3rd Embodiment. The figure which shows the detail of the apparatus holding force adjustment mechanism of 3rd Embodiment. The figure which shows the pulley and wire attachment part of 3rd Embodiment. Sectional drawing of the state which maximized the apparatus holding force of 3rd Embodiment. Sectional drawing of the state which enabled adjustment of the apparatus holding force of 3rd Embodiment. Sectional drawing of the state which minimized the apparatus holding force of 3rd Embodiment. The figure which shows a prior art example.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First Embodiment) FIG. 1 is a perspective view when a cooperative device 30 such as an information terminal is attached to a small device main body 100 such as a handy ID tag reader / writer. The small device main body 100 is provided with a grip 110, and the cooperation device 30 is attached to the grip 110. The material of the housing 1 of the small device main body 100 is formed of a material such as hard plastic that is strong against impact and hardly deforms.

Hereinafter, the configuration of the mount holder 36 that is a holding mechanism that is detachably fixed to the small device main body 100 with a connecting portion and the cooperation device 30 that is fixed to the mount holder 36 will be described with reference to FIGS. 2 to 6. To do.

FIG. 2 (a) shows a part of the housing 1, the linkage device 30, and the mount holder 36 for connecting them, when FIG. 1 is viewed from the direction of the arrow a. 2B shows a state in which the mount holder 36 is removed from the housing 1 when FIG. 1 is viewed from the direction of the arrow b. FIG. 3 is a cross-sectional view of only the housing 1, and FIG. 4 is an enlarged perspective view of the mount holder 36 with the cooperation device 30 attached to the mount holder 36.

5 is a schematic view when the mount holder 36 is fixed to the housing 1, and FIG. 6 is a view for showing the operating state of the holding portion.

First, the housing 1 is provided with a first recess 2a and a second recess 3a adjacent to the first recess 2a. The first recess 2a and the second recess 3a are through holes that open from the inside of the housing 1 to the outside. The insides of the first recess 2a and the second recess 3a have a spherical shape, and a spherical spherical portion provided at the intermediate portion of the holding portion is fitted into the spherical portion as will be described later. Is a shape that can freely rotate.

A spherical first convex portion 2b formed at the intermediate portion of the first holding portion 6 is fitted into the first concave portion 2a, and the first holding portion 6 has the first convex portion 2b as a fulcrum. It is held so as to be rotatable in the X-axis and Y-axis directions. The second concave portion 3a is fitted with a spherical second convex portion 3b formed at an intermediate portion of the second holding portion 7, and the second convex portion 3b is used as a fulcrum for the second holding portion. 7 is rotatably held.

In addition, one end of the first holding portion 6 protrudes outside the housing and a first spherical receiving portion 8 is provided. Similarly, one end of the second holding portion 7 protrudes to the outside of the housing, and a second spherical receiving portion 9 is provided. On the other hand, one end of a tension spring 4 as a first elastic body is attached to the other end of the first holding portion 6, and the other end of the tension spring 4 is fixed to the adjusting portion 11 via a wire 13 and a pulley 12. Has been. Further, a tension spring 5 that is a second elastic body is fixed to the other end of the second holding portion 7, and the other end of the tension spring 5 is fixed to the housing 1. A first spherical receiving portion 8 provided at one end of the first holding portion 6 and a second spherical receiving portion 9 provided at one end of the second holding portion 7 by the tension springs 4 and 5. Is elastically biased in the direction of approaching.

Further, on the projecting side of the second spherical receiving portion 9 provided at one end of the second holding portion 7, in a direction orthogonal to the direction in which the first holding portion 6 and the second holding portion 7 are arranged. A horizontal holding receiving portion 35 is provided so as to protrude.

The mount holder 36 is screwed with a cooperation device 30 such as an information terminal (details are omitted). The mount holder 36 has a spherical third convex portion 32 that engages with the spherical receiving portion 8 of the first holding portion 6 and a spherical second portion that engages with the spherical receiving portion 9 of the second holding portion 7. Four convex portions 33 are provided. Further, in the direction in which the third convex portion 32 and the fourth convex portion 33 are arranged, the horizontal holding which regulates the rotation of the mount holder 36 by contacting the horizontal holding receiving portion 35 provided in the housing 1. A portion 34 is provided so as to protrude.
When the mount holder 36 is attached to the housing 1, the first holding portion 6 and the second holding portion 7 are opened against the urging force of the tension springs 4, 5, and the third The mount holder 36 to which the cooperation device 30 is fixed is attached to the housing 1 by fitting the convex portion 32 to the first spherical receiving portion 8 and the fourth convex portion 33 to the second spherical receiving portion 9. Can be retained.

With such a configuration, the first holding unit 6 and the second holding unit 7 can freely rotate in the X-axis direction and the Y-axis direction with respect to the housing 1. Further, the mount holder 36 can be freely rotated in the X-axis direction with respect to the first holding part 6 and the second holding part 7.

Note that a tension spring 10 disposed outside the housing 1 is attached between one end side of the first holding portion 6 relative to the intermediate portion and the intermediate portion of the second holding portion 7. Thus, the first spherical receiving portion 8 and the second spherical receiving portion 9 are elastically biased in the direction in which they approach each other.

Here, when an impact is applied by dropping the small device main body 100 to which the cooperation device 30 is attached, the third convex portion 32 and the fourth convex portion 32 from the first spherical receiving portion 8 and the second spherical receiving portion 9 are applied. When the convex portion 33 is detached, the cooperation device 30 is detached from the small device main body 100, and breakage of the connecting portion can be prevented.

In addition, it is necessary to adjust the holding force of the mount holder 36 by the 1st holding | maintenance part 6 and the 2nd holding | maintenance part 7 with the weight of the cooperation apparatus 30, but it is the adjustment part shown in FIG.5, FIG.7 and FIG.8. 11 is adjustable.

That is, it is performed by adjusting the tensile force of the tension spring 4 provided at the other end of the first holding portion 6. Specifically, one end of the wire 13 is attached to the other end of the tension spring 4, the middle part of the wire is bridged between two pulleys 12, 12 and the direction is changed, and the other end of the wire 13 is the adjustment unit. 11 is fixed. The position where the adjusting unit 11 is fixed with respect to the housing 1 is variable, and the holding force is adjusted according to the fixed position.

FIG. 7 shows a state in which the holding force is maximum in a state where the tension spring 4 is extended to the maximum by holding the adjusting unit 11 at the bottom of the drawing. FIG. 8 shows a state in which the holding force is minimum when the tension spring 4 is extended to the minimum by holding the adjusting unit 11 at the top of the drawing.
Further, as shown in FIG. 9, the gap between the pulley 12 and the inner surface of the housing 1 is set smaller than the diameter of the wire 13. Accordingly, it is possible to prevent a problem that the wire 13 is detached from the pulley 12 when the holding force is adjusted.

Next, a structure for restricting the mount holder 36 from rotating with respect to the grip 110 of the small device main body 100 will be described with reference to FIG. The mount holder 36 has the third convex portion 32 and the fourth convex portion 33 as described above. The third convex portion 32 is fitted with the first spherical receiving portion 8, and the fourth convex portion 33 is fitted with the second spherical receiving portion 9. Accordingly, the mount holder 36 is rotatable with respect to the housing 1 around the third convex portion 32 and the fourth convex portion 33 as axes.

In order to restrict this rotation, the mount holder 36 has a horizontal holding portion 34 for keeping the cooperation device 30 horizontal with respect to the grip portion 110 of the small device main body 100. On the other hand, the housing 1 is provided with a horizontal holding receiving portion 35, and the rotation of the mount holder 36 can be restricted by bringing the horizontal holding portion 34 and the horizontal holding receiving portion 35 into contact with each other.

The horizontal holding receiver 35 preferably has a width of 30 to 40% of the dimension of the cooperation device 30 to be attached so that the horizontal holding receiver 35 can be easily separated from an impact from any direction of 360 degrees. . A large curved surface is provided at the corner of the horizontal holding receiver 35 to prevent the linked device 30 from being damaged.

With the above configuration, the casing 1 and the linkage device 30 can be connected with one touch from the side of the case 1 and the shock is absorbed by the case 1 and the linkage device 30 vibrating against a light external force. After that, the cooperation device 30 restores the original connection position. When an external force of a certain value or more is applied, the third convex portion 32 and the fourth convex portion 33 are detached from the first spherical receiving portion 8 and the second spherical receiving portion 9, and the housing 1 and the link device 30 are separated without damaging the connecting portion.

(Second Embodiment) In the first embodiment, the first elasticity is used as a mechanism for adjusting the holding force of the mount holder 36 by the first holding portion 6 and the second holding portion 7 according to the weight of the cooperation device 30. A wire 13 spanned between pulleys 12 and 12 was used between the tension spring 4 as a body and the adjusting portion 11. However, if there is a sufficient space in the direction in which the tension spring 4 is pulled in the housing 1, a mechanism that does not use wires or pulleys as shown in FIGS. 11 and 12 is possible.

That is, in FIG. 11 and FIG. 12, the adjustment portion 11 is attached to the other end of the tension spring 4, and the adjustment portion 11 can adjust the fixing position to the housing 1. FIG. 11 shows a state in which the holding force is minimum when the tension spring 4 is extended to the minimum by holding the adjusting portion 11 at the bottom of the drawing. FIG. 12 shows a state in which the holding force is maximum in a state where the tension spring 4 is extended to the maximum by holding the adjusting unit 11 at the uppermost part in the drawing.

(Third Embodiment) In the first embodiment and the second embodiment, the holding force is adjusted by the position where the adjusting unit 11 is fixed to the housing. However, the holding force according to the third embodiment is adjusted. A dial-type adjusting mechanism will be described with reference to FIGS.

As shown in FIGS. 14 and 15, in order to give tension to the tension spring 4, a pulley 17 for winding up an intermediate portion of the wire 13 having one end attached to the tension spring 4 around its outer periphery, and rotation of the pulley 17 A regulating shaft 15 is provided. As shown in FIG. 16, the pulley 17 and the other end of the wire 13 are attached by fixing a terminal portion 19 provided at the other end of the wire 13 in a hole 17 a provided in the pulley 17.

A square through hole 17b is provided at the center of the pulley 17, and the pulley 17 and the shaft 15 are rotated together by being positioned at a square pulley detent 15a provided at the center of the shaft 15. It has become.

A polygonal detent 15b is provided on the left side of the shaft 15 relative to the center of the shaft 15, and a cylindrical pressing part 15c is provided on the left side. Further, a compression spring locking portion 15d is provided on the right side in the drawing with respect to the pulley detent portion 15a of the shaft 15, and a cylindrical portion 15e on which the compression spring 21 is provided is further provided on the right side.

Both ends of the shaft 15 configured in this way are held by a pair of left and right housings 1 by being elastically biased in the left direction in the drawing by a compression spring 21. The housing 1 on the left side in the figure is provided with an engaging portion 20 that is a polygonal cylinder that engages with the rotation preventing portion 15 b of the shaft 15. A knob 16 is fixed to the rightmost end of the shaft 15 by a screw 18 so as to be rotatable integrally with the shaft 15.

Next, a method for adjusting the holding force will be described. The shaft 15 is slidably fixed between the pair of housings 1 and 1, and is normally urged leftward in the figure by a compression spring 21, so that the rotation preventing portion 15 b of the shaft 15 and the housing 15 are urged. The rotation is restricted by the engaging portion 20. When adjusting the holding force, when the pressing portion 15c of the shaft 15 is pushed to the right in the figure, the pulley 17 is prevented from rotating by the positioning rib 23 of the housing 1 while keeping the fixed position regardless of the sliding direction of the shaft. The engagement between the portion 15b and the engagement portion 20 of the housing is released, and the shaft 15 becomes rotatable.

In this state, the knob 16 is rotated, and the winding amount of the wire 13 is adjusted by the pulley 17. That is, when the pulley 17 is rotated, the winding amount of the wire 13 is changed and the extension amount of the tension spring 4 is changed, so that the holding force of the mount holder 36 can be adjusted. After adjusting the rotation amount of the knob 16, the shaft 15 slides in the left direction in the figure by pushing the knob 16, and the rotation preventing portion 15 b of the shaft 15 is engaged with the engaging portion 20 of the housing 1. Shaft rotation is regulated.

Accordingly, the holding force can be adjusted to the optimum according to the weight of the connected device 30 to be connected.

According to such an embodiment, it is possible to provide a small device and a small device holding mechanism capable of preventing damage to the connecting portion between the small device main body and the cooperation device when an impact is applied.

Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 Case 2a 1st spherical recessed part 2b 1st spherical convex part 3a 2nd spherical recessed part 3b 2nd spherical convex part 4 1st elastic body 5 2nd elastic body 6 1st holding | maintenance Part 7 Second holding part 8 First spherical receiving part 9 Second spherical receiving part 10 Third elastic body 11 Adjusting part 12 Pulley 13 Wire 15 Shaft 15a Pulley detent 15b Polygon detent 15c Cylindrical pressing portion 15d Compression spring locking portion 15e Cylindrical portion 16 Knob 17 Pulley 17a Hole 18 Knob mounting screw 19 Terminal portion 20 Engaging portion 21 Compression elastic body 22 Compression elastic body fulcrum surface 23 Positioning rib
30 Cooperating device 32 Third convex portion 33 Fourth convex portion 34 Horizontal holding portion 35 Horizontal holding receiving portion 36 Mount holder 50 Lock hook 51 Lock hook spring 52 Fixing groove s Holding force strong rotation w Holding force weak rotation 100 Small device Main body 110 Small device main body grip

Claims (8)

A small device that detachably fixes a linked device to a small device body,
A housing having a spherical first concave portion and a spherical second concave portion provided adjacent to the first concave portion;
A first convex portion having a spherical shape provided in the middle portion is fitted into the first concave portion, rotates with the first convex portion as a fulcrum, and has a first spherical receiving portion at one end. 1 holding part;
A second convex portion having a spherical shape provided in the middle portion is fitted into the second concave portion, rotates with the second convex portion as a fulcrum, and has a second spherical receiving portion at one end. Two holding parts;
Provided at the other end of the first holding portion and the other end of the second holding portion, respectively, and elastically biased in a direction in which one end of the first holding portion and one end of the second holding portion approach each other A biasing member having a first elastic body and a second elastic body;
A fixing portion for fixing the cooperation device, a third convex portion having a spherical shape to be engaged with the first spherical receiving portion of the first holding portion, and a second spherical receiving portion of the second holding portion A holding mechanism that is detachably held with respect to the housing,
A small device characterized by having. The biasing member includes an adjustment unit that is provided between the housing and the first elastic body and adjusts a force that the first elastic body gives to the first holding unit. Item 1. A small device according to item 1. The adjustment unit is
A connecting portion having one end connected to the first elastic body;
A pulley in which the other end of the connecting portion is fixed and an intermediate portion of the connecting portion is wound around the outer periphery;
A shaft that fixes the pulley rotated by a predetermined angle; and
The small device according to claim 2, wherein:   The shaft is configured to be slidable with respect to the housing, and is configured to be rotatable together with the pulley with respect to the housing when slid to one side, and to be restricted from rotating when slid to the other side. The small device according to claim 3, wherein the small device is provided. Outside the housing, a horizontal holding receiving portion having a flat portion in a direction orthogonal to a direction connecting the first spherical receiving portion and the second spherical receiving portion is provided.
The auxiliary tool is provided with a horizontal holding portion provided in a direction orthogonal to a direction connecting the third convex portion and the fourth convex portion, and in surface contact with the horizontal holding receiving portion. The small device according to claim 1. The small device according to claim 5, wherein the horizontal holding unit has a size of 30% to 40% of a horizontal width of the cooperation device. A casing having a spherical first concave portion and a spherical second concave portion provided adjacent to the first concave portion, and a spherical first convex portion provided in the middle portion are A first holding portion that fits into the first concave portion, rotates around the first convex portion as a fulcrum, and has a first spherical receiving portion at one end, and a spherical-shaped first portion provided in the middle portion. A second holding portion that fits into the second concave portion, rotates around the second convex portion as a fulcrum, and has a second spherical receiving portion at one end; and A first end provided at the other end of the holding portion and the other end of the second holding portion, respectively, and elastically urged in a direction in which one end of the first holding portion and one end of the second holding portion approach each other. Holding for detachably fixing the cooperative device to the housing of the small device main body having the elastic body and the biasing member having the second elastic body A structure,
A fixing portion for fixing the cooperation device, a third convex portion having a spherical shape to be engaged with the first spherical receiving portion of the first holding portion, and a second spherical receiving portion of the second holding portion And a fourth convex portion having a spherical shape to be fitted with a small-sized device holding mechanism. A casing having a spherical first concave portion and a spherical second concave portion provided adjacent to the first concave portion, and a spherical first convex portion provided in the middle portion are A first holding portion that fits into the first concave portion, rotates around the first convex portion as a fulcrum, and has a first spherical receiving portion at one end, and a spherical-shaped first portion provided in the middle portion. A second holding portion that fits into the second concave portion, rotates around the second convex portion as a fulcrum, and has a second spherical receiving portion at one end; and An urging member that is provided at the other end of the holding portion and the other end of the second holding portion, and elastically urges one end of the first holding portion and one end of the second holding portion to approach each other. And a flat surface portion in a direction orthogonal to a direction connecting the first spherical receiving portion and the second spherical receiving portion. To a holding mechanism for detachably securing the linked device with respect to the housing of a small appliance body having a horizontal holding parts,
A fixing portion for fixing the cooperation device, a third convex portion having a spherical shape to be engaged with the first spherical receiving portion of the first holding portion, and a second spherical receiving portion of the second holding portion And a horizontal holding portion that is provided in a direction perpendicular to a direction connecting the third and fourth convex portions and is in surface contact with the horizontal holding receiving portion. A holding mechanism for a small device characterized by comprising:

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