WO2014034611A1 - Dispositif pare-vent pour balance - Google Patents

Dispositif pare-vent pour balance Download PDF

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Publication number
WO2014034611A1
WO2014034611A1 PCT/JP2013/072748 JP2013072748W WO2014034611A1 WO 2014034611 A1 WO2014034611 A1 WO 2014034611A1 JP 2013072748 W JP2013072748 W JP 2013072748W WO 2014034611 A1 WO2014034611 A1 WO 2014034611A1
Authority
WO
WIPO (PCT)
Prior art keywords
frame
panel
shield plate
windshield device
claw
Prior art date
Application number
PCT/JP2013/072748
Other languages
English (en)
Japanese (ja)
Inventor
智武 吉田
弘 須澤
和文 内藤
Original Assignee
新光電子株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 新光電子株式会社 filed Critical 新光電子株式会社
Priority to JP2014532996A priority Critical patent/JP6203180B2/ja
Priority to CN201390000724.5U priority patent/CN204807184U/zh
Publication of WO2014034611A1 publication Critical patent/WO2014034611A1/fr

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G21/00—Details of weighing apparatus
    • G01G21/28—Frames, Housings
    • G01G21/286—Frames, Housings with windshields

Definitions

  • the present invention relates to a windshield device for a scale, and is configured so that it can be easily attached to and detached from the scale body and cleaned.
  • a precision balance such as an electronic balance can affect the measurement accuracy even if the air in the room where it is installed moves slightly. Therefore, as described in Patent Document 1 below, a windshield case is installed so as to surround a weighing pan on which a sample is placed, and the flow of air is conventionally blocked.
  • a windshield case is installed so as to surround a weighing pan on which a sample is placed, and the flow of air is conventionally blocked.
  • there are a wide range of weighing locations from quiet laboratories to manufacturing sites where air flow is not constant, and measurement is performed in an environment where a windshield device is indispensable for maintaining the accuracy of the electronic balance. Increasing cases are being reported.
  • the inside of the windshield device may become dirty with an object to be weighed. In such a case, the inside of the windshield device needs to be cleaned.
  • the windshield device of Patent Document 1 is a structure in which posts are installed at the four corners of the lower base frame, the side plates are fitted into the fitting grooves of each post, and the upper base frame is fixed to the upper end of the post. There is a problem that the inside cannot be easily cleaned.
  • the present invention was devised in view of such circumstances, and an object of the present invention is to provide a windshield device for a scale that is easy to attach and detach to and from the balance body and enables high-precision weighing of the scale body. It is said.
  • the present invention is such that the support shaft supporting the weighing pan protrudes from the upper surface, and a square shield plate fixed to the upper surface covers the entire upper surface except the periphery of the support shaft via the shield plate
  • a frame-shaped base frame that is resin-molded into a quadrangular shape corresponding to the outer periphery of the shield plate, and a metal made upright on the rear side (rear side) of the frame-shaped base frame
  • the front edge of the guide part is fixed, and the front edge of the frame-like base frame (front side) is transparent and the lower edge is locked, and the guide frame can be slid in the front-rear direction.
  • the shield plate has a notch hole on each of the rising edges of the opposing sides, and a claw that engages with each of the notch holes from the outside is provided on the windshield device side.
  • the windshield device can be removed from the scale body by releasing the engagement between the notch hole of the shield plate and the claw when cleaning the inside of the weighing pan or the windshield device.
  • the top panel and the side panels on both sides can be slid and removed, it is easy to clean the inside of the weighing pan and the windshield device with the windshield device mounted on the scale body.
  • the windshield device for a scale has a notch hole formed in the rising edge of the front side and the rising edge of the rear side of the shield plate, and the cutout hole formed in the rising edge of the front side of the shield plate.
  • Claws to be joined are provided inwardly on the back side of the front side of the frame-shaped base frame, and claws that engage with a notch formed in the rising edge of the rear side of the shield plate are on the outer surface of the rear frame.
  • the latch is provided with a base part fixed to the rear frame, a pivot part supported by the base part so as to be pivotable in a horizontal direction via a hinge part, A shield holding portion extending downward from the lower edge; a claw provided on the shield holding portion; and a snap portion for locking the turning portion rotated to a position overlapping with the base portion.
  • Claw of shield holding part while locked to snap part Characterized in that it engages in the notch hole formed on the rising edge of the rear side of the shield plate.
  • This windshield device engages a claw with a notch hole formed in the rising edge of the front side of the shield plate, and then latches the rotating part of the latch fixed to the rear frame with the snap part.
  • the claw engages with a notch hole formed in the rising edge of the rear side of the shield plate, and is attached to the scale body. Therefore, the windshield device can be attached to and detached from the balance body with one touch.
  • the windshield device for scales of this invention it is desirable to shape
  • the rising edges on the left and right sides of the shield plate are in contact with the inner surfaces of the left and right sides of the frame-like base frame. By this contact, the left and right direction of the windshield device is positioned with respect to the balance body.
  • a metal inner panel that covers the inside of the rear frame is disposed at a position behind the weighing pan and in front of the rear frame, and the inner panel is formed after the top panel is removed. It is possible to pull it upward.
  • the inner panel prevents the rear frame from being dirty, and the dirty inner panel can be removed and cleaned.
  • the inner panel is held on both side edges folded inside the rear frame, and an inner panel holder for guiding the inner panel when pulled out is attached. Both side edges folded inside the rear frame are covered with the inner panel holder and are not exposed.
  • a transparent conductive film is coated on the inner surfaces of the front panel, the top panel, and the side panel, and the conductive film formed on the front panel is formed on the front side of the frame-shaped base frame.
  • the conductive coating formed on the top panel and the side panel is electrically connected to the shield plate through the spring contact member disposed, and the conductive film formed on the top panel and the side panel is connected to the rear frame through the spring contact member disposed at the base of the guide frame.
  • the rear frame is electrically connected, and is electrically connected to the shield plate via a spring-like contact member disposed on the rear side of the frame-shaped base frame.
  • a shielded windshield device Since the measurement accuracy of the electronic balance is affected when the windshield device is charged with static electricity, a shielded windshield device has been used conventionally. However, when the windshield device is detachable from the scale body and the top panel and the side panel are slidable, it is difficult to secure the conduction path of the windshield device.
  • the top panel and the side panel are electrically connected to the metal rear frame using a contact member, and the fixed rear frame and front panel are electrically connected to the shield plate using the contact member.
  • the lower end of metal inner panels is made to contact a shield board, and the inner panel and the shield board are electrically connected. Therefore, even if the windshield device is detachable from the scale body, the top panel and the side panel are slidable, and the inner panel is removable, the static electricity in the weighing space can be released, resulting in static electricity. It is possible to suppress a decrease in accuracy of the electronic balance.
  • the scale windshield device of the present invention can be easily attached to and detached from the scale body and cleaned inside. Also, static electricity that affects the weighing accuracy of the scale body can be released.
  • the figure which shows the state which removed the windshield apparatus of FIG. 1 from the scale main body. 1 is an exploded perspective view of the windshield device and the shield plate of FIG.
  • the figure which shows the latch of the windshield apparatus of FIG. The figure which shows the procedure when mounting
  • FIG. 1 shows a state in which a windshield device 20 according to an embodiment of the present invention is mounted on a scale body 10.
  • Fig.1 (a) is the perspective view seen from diagonally forward
  • FIG.1 (b) is the perspective view seen from diagonally backward.
  • FIG. 2 shows a state in which the windshield device 20 is removed from the scale body 10.
  • a weighing pan 11 supported by a support shaft (not shown) on the upper surface of the case body 10
  • a rectangular shield plate 12 covering substantially the entire surface of the case except the periphery of the support shaft is provided on the upper surface of the case. It is fixed.
  • the shield plate 12 is electrically connected to the inside of the scale body 10.
  • the windshield device 20 includes a rectangular frame-shaped base frame 21 having a size corresponding to the outer periphery of the shield plate 12, and a rear side (rear side) of the frame-shaped base frame 21.
  • a rear frame 22 erected on top, an inner panel 28 disposed in front of the rear frame 22, a base portion 231 fixed to the upper end of the rear frame 22, and a pair of front ends extending from both ends of the base portion 231
  • a guide frame 23 having a guide portion 232, a transparent front panel 24 having an upper edge fixed to the tip of the guide portion 232, and a lower edge locked to the front side (front side) of the frame-like base frame 21,
  • a transparent top panel 25 supported by a pair of guide portions 232 of the guide frame 23 so as to be slidable in the front-rear direction, each guide portion 232 of the guide frame 23 and a frame-shaped base
  • the rear frame 22 and the inner panel 28 are made of metal, and the frame-shaped base frame 21 is formed of resin.
  • a base portion 231 and a guide portion 232 are integrally formed of resin.
  • the front panel 24, the top panel 25, and the side panels 26 and 27 are made of transparent glass or an acrylic plate.
  • Guide portions 212 of sliding side panels 26 and 27 are provided on the left and right side sides of the frame-shaped base frame 21.
  • the rear frame 22 has a mounting portion 222 screwed to the rear side of the frame-shaped base frame 21 at the lower edge, and has a mounting portion 221 screwed to the base 231 of the guide frame 23 at the upper edge. ing.
  • the rear frame 22 has both side edges folded back inward, and an inner panel holder 281 that holds the inner panel 28 is fixed to the folded piece.
  • the inner panel holder 281 has a groove into which the folded piece of the rear frame 22 is fitted.
  • the folded piece is covered by the inner panel holder 281.
  • the pair of inner panel holders 281 fixed to the folded pieces of the rear frame 22 has grooves in which the side edges of the inner panel 28 are fitted to the surfaces facing each other, and the inner panel 28 is held by the grooves, Further, when the inner panel 28 is pulled upward, it is guided by this groove.
  • the inner panel 28 is provided with a recess at the center so that the windshield device 20 is not attached to the weighing pan 11 when the windshield device 20 is mounted on the scale body 10.
  • a screw hole for receiving the fixing bolt 241 of the front panel 24 is provided on the distal end side of the guide portion 232 of the guide frame 23, and the front edge of the front panel 24 is fixed to the guide portion 232 of the guide frame 23 by the fixing bolt 241. Combined, the lower edge is locked and fixed to the front panel holder portion 211 on the front side of the frame-shaped base frame 21. Further, knobs 251, 261, 271 are fixed to the sliding top panel 25 and side panels 26, 27 by fixing bolts 252, 262, 272, respectively.
  • a transparent conductive film (such as an ITO film) is formed inside the front panel 24, the top panel 25, and the side panels 26 and 27.
  • these conductive films are finally electrically connected to the shield plate 12 that is electrically connected to the inside of the scale body 10.
  • the four sides of the shield plate 12 are raised at the edges, two notched holes 121 are formed at the rising edge of the front side, and the notched holes 122 are formed at one central position at the rising edge of the rear side. Is formed.
  • FIG. 4 shows the back side of the frame-shaped base frame 21.
  • two claws 213 that engage with the cutout holes 121 of the shield plate 12 are formed inward.
  • the left and right side sides of the frame-shaped base frame 21 have inner side surfaces 214 with which the left and right rising edges of the shield plate 12 abut on the back surface.
  • the rear side of the frame-shaped base frame 21 does not have an outer peripheral wall on the back surface, unlike the front side and the left and right side sides. This is for the purpose of allowing the claws of the latch 40 described later to enter the lower side of the frame-like base frame 21.
  • the latch 40 is fixed to the lower edge of the outer surface of the rear frame 22 as shown in FIG.
  • the latch 40 includes a claw that engages with a notch hole 122 formed at the rising edge of the rear side of the shield plate 12.
  • the latch 40 includes a base portion 41 fixed to the lower edge of the rear frame 22, and a rotating portion supported by the base portion 41 so as to be horizontally rotatable via a hinge portion 42. 43, a shield holding portion 44 extending obliquely downward from the lower edge of the rotating portion 43, and a snap portion 45 for locking the rotating portion 43 rotated to a position overlapping the base portion 41, A claw 441 that engages with the notch hole 122 is formed in the shield holding portion 44.
  • FIG. 6 shows a procedure for mounting the windshield device 20 on the scale body 10.
  • the windshield device 20 With the rotating portion 43 of the latch 40 released from the snap portion 45, the windshield device 20 is placed on the balance body 10 as shown in FIG. At this time, the left and right rising edges of the shield plate 12 come into contact with the rear inner side surfaces 214 on the left and right sides of the frame-like base frame 21, and the lateral position of the windshield device 20 with respect to the scale body 10 is restricted.
  • the windshield device 20 is moved in the direction of the arrow in FIG. By this movement, the claw 213 formed on the back surface of the front side of the frame-shaped base frame 21 is engaged with the notch hole 121 of the shield plate 12 from the front side.
  • FIG. 7 shows the windshield device 20 and the balance body 10 after the movement.
  • the turning portion 43 of the latch 40 is turned to a position overlapping the base portion 41, and the turning portion 43 is locked to the snap portion 45.
  • the claw 441 formed on the shield holding portion 44 of the latch 40 is engaged with the notch hole 122 on the rear side of the shield plate 12 from the rear side, and at the same time, both side portions 442 of the shield holding portion 44 are It contacts the rising edge of the rear side of the shield plate 12. Therefore, the position of the windshield device 20 in the front-rear direction with respect to the balance body 10 is determined by the claw 213 formed on the back surface of the front side of the frame-shaped base frame 21 and the shield restraining portion 44 of the latch 40 from the front and rear. It is fixed by pinching.
  • the position in the left-right direction is fixed by the left and right rising edges of the shield plate 12 coming into contact with the back-side inner surface 214 of the left and right sides of the frame-like base frame 21. Further, the windshield device 20 can be detached from the scale body 10 by performing the reverse operation.
  • the claw 213 formed on the back surface of the frame-shaped base frame 21 and the claw 441 formed on the shield holding portion 44 of the latch 40 are further away from the tip of the claw. It is desirable to incline the surface to increase the thickness. By doing so, both can be engaged so that a gap does not occur between the claws 213 and 441 and the cutout holes 121 and 122, and the windshield device 20 is not loosened against the scale body 10. Can be mounted in a stable state.
  • the windshield device 20 can be attached to and detached from the scale body 10 with a single touch. Therefore, when the windshield device 20 is removed from the scale body 10 to clean the inside of the weighing pan 11 and the windshield device 20 and then reassembled after cleaning, the operation is simple.
  • the windshield device 20 has a measuring space divided by a front panel 24, a top panel 25, side panels 26 and 27, and an inner panel 28.
  • the top panel 25 and the side panels 26 and 27 can be slid rearward and removed, and the inner panel 28 is pulled upward with the top panel 25 removed as shown in FIG. Can do.
  • the windscreen device 20 is removed from the scale body 10 or the windscreen device 20 is attached to the scale body 10 while the front panel 24, the top panel 25, The side panels 26 and 27 or the inner panel 28 can be removed from the windshield device 20 and cleaned.
  • this windshield device 20 it is difficult to remove the rear panel 22.
  • the rear panel 22 is covered with the inner panel 28, the inner side of the rear panel 22 is not exposed to the measuring space and is soiled by the object to be weighed. There is no fear.
  • the conductive coating formed on the non-sliding front panel 24 is electrically connected to the shield plate 12 by the conductive path 1 as shown in FIG.
  • the conductive coating formed on the sliding top panel 25 and side panels 26 and 27 is electrically connected to the metal rear panel 22 through the conductive path 6, the conductive path 2 and the conductive path 3, respectively.
  • the conductive path 5 is electrically connected to the shield plate 12.
  • the metal inner panel 28 makes the lower end directly contact the shield plate 12 (conductive path 4).
  • the conductive path 1, the conductive path 2, the conductive path 3, the conductive path 5, and the conductive path 6 are formed using a contact member such as a leaf spring.
  • FIG. 11 shows an example of a contact member that forms the conductive path 1.
  • the contact member 50 is disposed in a groove on the front side of the frame-like base frame 21 and elastically contacts the lower inner surface (surface on which the conductive film is formed) of the front panel 24 inserted in the groove.
  • a contact portion 501 and a shield plate contact portion 502 that elastically contacts the shield plate 12 are provided. With this contact member 50, the conductive coating on the front panel 24 is electrically connected to the shield plate 12.
  • FIG. 12 shows an example of a contact member that forms the conductive path 3 and the conductive path 6.
  • the contact member 51 includes a top panel conductive film contact portion 511 that contacts the inner surface of the top panel 25 and a side panel conductive film contact portion 512 that contacts the inner surface of the side panel 27. However, together with the base portion 231 of the guide frame 23, it is fixed to the attachment portion 221 of the rear panel 22 with screws. By this contact member 51, the conductive coatings of the top panel 25 and the side panel 27 are electrically connected to the rear panel 22.
  • FIGS. 13A and 13B show an example of a contact member that forms the conductive path 5.
  • the contact member 52 has a pair of shield plate contact pieces 521 that contact the shield plate 12, and a screwed hole is provided between the pair of shield plate contact pieces 521.
  • the contact member 52 is disposed on the back surface of the frame-shaped base frame 21, and is fixed to the attachment portion 222 of the rear panel 22 together with the frame-shaped base frame 21 with screws.
  • the rear panel 22 is electrically connected to the shield plate 12 by the contact member 52.
  • the windshield device 20 can be attached to and detached from the scale body 10 and can maintain the shield function even when the top panel 25 and the side panels 26 and 27 are slidable. Static electricity that affects the measurement accuracy of the main body 10 can be released, and a decrease in measurement accuracy can be suppressed.
  • the structure shown here is an example, Comprising: This invention is not limited only to the structure.
  • the windshield device for a scale according to the present invention can be easily attached to and detached from the scale body and cleaned inside, and can be widely applied to scales that perform weighing in various environments.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Induction Heating Cooking Devices (AREA)
  • Instrument Panels (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)

Abstract

L'invention concerne un dispositif pare-vent pour balance, qui est monté sur une unité de balance par l'intermédiaire d'une plaque-écran (12) qui est fixée à l'unité de balance. Le dispositif pare-vent comporte les éléments suivants : une armature (21) de base en forme de cadre ; une armature arrière (22) ; une armature-guide (23) ; un panneau avant (24) couplé à l'extrémité d'une partie de guidage ; un panneau supérieur coulissant (25) ; et des panneaux latéraux (26, 27). Disposé en avant de l'armature arrière se trouve un panneau intérieur (28) qui peut être tiré vers le haut après démontage du panneau supérieur. Lors du montage du dispositif pare-vent, une griffe équipant l'armature de base en forme de cadre interagit avec un trou (121) d'encoche pratiqué dans la plaque-écran, et une griffe d'un loquet (40) interagit avec un trou (122) d'encoche pratiqué dans la plaque-écran. Le démontage du dispositif pare-vent est aisé et le décrochage du panneau intérieur, du panneau latéral et du panneau supérieur qui forment l'espace de pesée est simple, ce qui permet d'effectuer facilement le nettoyage.
PCT/JP2013/072748 2012-08-31 2013-08-26 Dispositif pare-vent pour balance WO2014034611A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2014532996A JP6203180B2 (ja) 2012-08-31 2013-08-26 秤用風防装置
CN201390000724.5U CN204807184U (zh) 2012-08-31 2013-08-26 秤用防风装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012-192539 2012-08-31
JP2012192539 2012-08-31

Publications (1)

Publication Number Publication Date
WO2014034611A1 true WO2014034611A1 (fr) 2014-03-06

Family

ID=50183423

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2013/072748 WO2014034611A1 (fr) 2012-08-31 2013-08-26 Dispositif pare-vent pour balance

Country Status (3)

Country Link
JP (1) JP6203180B2 (fr)
CN (1) CN204807184U (fr)
WO (1) WO2014034611A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017219501A (ja) * 2016-06-10 2017-12-14 新光電子株式会社 秤の風防装置
CN109073450A (zh) * 2016-07-26 2018-12-21 株式会社爱安德 计量器用防风罩
JP2019184592A (ja) * 2018-04-17 2019-10-24 メトラー−トレド ゲーエムベーハー モジュール構造の秤量室後部壁を有する電子天秤

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105547448B (zh) * 2015-11-30 2018-06-08 蚌埠大洋传感系统工程有限公司 一种称重传感器用防水防尘易于散热的显示仪

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6230125U (fr) * 1985-08-06 1987-02-23
JPS62179615A (ja) * 1986-02-04 1987-08-06 Ee & D:Kk 高分解能秤量装置
JPH0432028U (fr) * 1990-07-13 1992-03-16
JPH05322638A (ja) * 1992-05-22 1993-12-07 Shimadzu Corp 風防付き天びん
JP2000131132A (ja) * 1998-10-27 2000-05-12 Mettler Toledo Ag 秤用ドラフトシ―ルドおよびドラフトシ―ルドを備えた秤
JP2008216047A (ja) * 2007-03-05 2008-09-18 A & D Co Ltd 秤量装置用着脱型風防

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6230125U (fr) * 1985-08-06 1987-02-23
JPS62179615A (ja) * 1986-02-04 1987-08-06 Ee & D:Kk 高分解能秤量装置
JPH0432028U (fr) * 1990-07-13 1992-03-16
JPH05322638A (ja) * 1992-05-22 1993-12-07 Shimadzu Corp 風防付き天びん
JP2000131132A (ja) * 1998-10-27 2000-05-12 Mettler Toledo Ag 秤用ドラフトシ―ルドおよびドラフトシ―ルドを備えた秤
JP2008216047A (ja) * 2007-03-05 2008-09-18 A & D Co Ltd 秤量装置用着脱型風防

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017219501A (ja) * 2016-06-10 2017-12-14 新光電子株式会社 秤の風防装置
CN109073450A (zh) * 2016-07-26 2018-12-21 株式会社爱安德 计量器用防风罩
JP2019184592A (ja) * 2018-04-17 2019-10-24 メトラー−トレド ゲーエムベーハー モジュール構造の秤量室後部壁を有する電子天秤
JP7236300B2 (ja) 2018-04-17 2023-03-09 メトラー－トレド ゲーエムベーハー モジュール構造の秤量室後部壁を有する電子天秤

Also Published As

Publication number Publication date
JPWO2014034611A1 (ja) 2016-08-08
CN204807184U (zh) 2015-11-25
JP6203180B2 (ja) 2017-09-27

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