US20060027696A1 - Damper unit - Google Patents

Damper unit Download PDF

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Publication number
US20060027696A1
US20060027696A1 US11/193,393 US19339305A US2006027696A1 US 20060027696 A1 US20060027696 A1 US 20060027696A1 US 19339305 A US19339305 A US 19339305A US 2006027696 A1 US2006027696 A1 US 2006027696A1
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US
United States
Prior art keywords
reel
string
holding recess
damper unit
damper
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
US11/193,393
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English (en)
Inventor
Shunsuke Okabayashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nifco Inc
Original Assignee
Nifco Inc
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 Nifco Inc filed Critical Nifco Inc
Assigned to NIFCO INC. reassignment NIFCO INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: OKABAYASHI, SHUNSUKE
Publication of US20060027696A1 publication Critical patent/US20060027696A1/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
    • B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
    • B65H75/44—Constructional details
    • B65H75/4436—Arrangements for yieldably braking the reel or the material for moderating speed of winding or unwinding
    • B65H75/4442—Arrangements for yieldably braking the reel or the material for moderating speed of winding or unwinding acting on the reel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R7/00—Stowing or holding appliances inside vehicle primarily intended for personal property smaller than suit-cases, e.g. travelling articles, or maps
    • B60R7/04—Stowing or holding appliances inside vehicle primarily intended for personal property smaller than suit-cases, e.g. travelling articles, or maps in driver or passenger space, e.g. using racks
    • B60R7/06—Stowing or holding appliances inside vehicle primarily intended for personal property smaller than suit-cases, e.g. travelling articles, or maps in driver or passenger space, e.g. using racks mounted on or below dashboards
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
    • A47B88/40—Sliding drawers; Slides or guides therefor
    • A47B88/473—Braking devices, e.g. linear or rotational dampers or friction brakes; Buffers; End stops
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/1083—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a leaf or similar spring
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/14—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with double-acting springs, e.g. for closing and opening or checking and closing no material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F7/00—Vibration-dampers; Shock-absorbers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F7/00—Vibration-dampers; Shock-absorbers
    • F16F7/02—Vibration-dampers; Shock-absorbers with relatively-rotatable friction surfaces that are pressed together
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/14—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with fluid brakes of the rotary type
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/21—Brakes
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/252—Type of friction
    • E05Y2201/254—Fluid or viscous friction
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/262—Type of motion, e.g. braking
    • E05Y2201/266—Type of motion, e.g. braking rotary
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/644—Flexible elongated pulling elements
    • E05Y2201/654—Cables
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/53—Type of wing
    • E05Y2900/538—Interior lids

Definitions

  • the present invention relates to an improvement to a damper unit that includes a wire material that is housed by winding so as to be pulled out, and dampens the pull-out motion of the wound wire only when it is pulled out.
  • Japanese Unexamined Patent Publication No. 2004-175151 discloses a damper unit that includes a gear rotatably housed in a case, a wire or wire-like cord which is wound around the core of the gear, a power spring for accumulating resilient force when the wire is pulled out, and a one-way damper that engages with the gear.
  • the damper unit is configured to dampen the rotation of the gear only when the gear is rotated in the direction in which the wire is pulled out.
  • connecting a glove box body to the pulled-out end of the wire while mounting the case to the vehicle body for example, can dampen the motion of the glove box body only when the glove box body is opened.
  • the wire is rewound around the core of the gear as the spring resiliently regains its original shape. Since the rotation of the gear is not dampened in this instance, the wire is rewound smoothly.
  • An object of the present invention is to make the same function as that of the damper unit disclosed in the aforementioned patent document without the use of a one-way damper.
  • the damper unit according to the present invention comprises the following features (1)-(8).
  • the pull-out motion of the wire material is dampened when it is pulled out from the reel, while, on the other hand, the reel is allowed to perform normal rotation by utilizing the function of spiral spring to thereby smoothly rewind the pulled-out wire material without incurring the damping force of the damper member when the pull-out force applied to the wire material ceases.
  • an engaging hook may be formed on the bottom side of the holding recess of the base that resiliently deforms upon abutting against the peripheral flange formed in the back end section of the reel being fitted, from that side first, into the holding recess, and subsequently regains its original shape in the position where the reel is fully fitted into the holding recess to thereby catch the upper surface of the peripheral flange.
  • the rotatable reel can be assembled with the base with a one-touch operation, by snapping the reel into the holding recess of the base.
  • one end of the wire material may be fixed to the cover assembled on the outer end section of the reel, in front of the holding recess of the base into which the reel is fitted, by insert molding using that end of the wire material as an insert, the peripheral rack and the spool may be formed between the outer end and back end sections of the reel with the peripheral rack positioned on the outside, and the peripheral rack may be provided with a slit opened outwardly at the roots of the teeth constituting the peripheral rack for feeding through the wire material.
  • the end portion of the wire material can be securely joined with the reel and, at the same time, the wire material fixed to the cover can be conveniently wound around the spool through the aforementioned slit.
  • a clip having a section to be fastened to the dampened subject may be fixed to the other end of the wire material by insert molding using that end of the wire material as an insert. According to this construction, that end of the wire material can be securely connected to the dampened subject via the clip by inserting the pair of bosses into mounting holes or the like that are formed in the dampened subject in a one-touch operation.
  • damper unit in the present invention while the damper member having the gear is capable of damping the rotation of the gear in either the normal or reverse direction, only the reverse rotation of the reel during the pull-out operation of the wire is dampened.
  • FIG. 1 is a perspective view of damper unit FIGS. 2 ( a ), 2 ( b ) and 2 ( c ) shown components which form the damper unit shown in FIG. 1 .
  • FIG. 3 is a top plan view of an assembly of the components shown in FIGS. 2 ( b ) and 2 ( c ) and depicts the situation wherein the wire is not drawn out.
  • FIG. 4 is a partial sectional view of the assembly shown in FIG. 3 .
  • FIG. 5 is a top plan view of the assembly shown in FIG. 4 depicting the situation wherein the wire is drawn out from the damper.
  • FIG. 6 is a partial sectional view of the damper unit shown in FIG. 5 .
  • FIG. 7 is a sectional view taken along section line 7 - 7 of FIG. 3 .
  • FIG. 8 is a top plan view of a base.
  • FIG. 9 is a back view of the damper D (wire material W is omitted).
  • FIG. 10 is a sectional view of the reel taken along section line 10 - 10 of FIG. 11 .
  • FIG. 11 is a sectional view of the reel taken along line 11 - 11 in FIG. 10 .
  • FIGS. 1, 3 , 5 , 7 , and 9 show the damper unit D in one embodiment of the present invention
  • FIG. 3 shows the state in which the wire material W is not pulled (drawn out of the damper D)
  • FIG. 5 shows the state in which the wire material W is pulled out.
  • FIG. 4 shows a section of the damper unit D in the state shown in FIG. 3
  • FIG. 6 shows a section of the damper unit D in the state shown in FIG. 5 .
  • FIGS. 2 ( a ), 2 ( b ) and 2 ( c ) show the components of the damper D when taken apart.
  • FIG. 8 is a view of the base 2 in the state shown in FIG. 3 in which the reel 1 is omitted for better understanding of the internal layout thereof.
  • FIGS. 10 and 11 show the reel 1 .
  • the damper unit D in this embodiment, includes a wire material W that is housed wound so as to be pulled out, and dampens the pull-out motion of the wound wire material W only when it is pulled out.
  • the wire material W can be any type of wire as exemplified by a round wire, oval wire, cord, copper wire, piano wire or the like.
  • the damper unit D is typically used to dampen the motion of the dampened subject, such as a lid, door, and drawer, which is connected to the pulled-out end (end Wb) of the wire material W and pulls out the wire material W by moving, through the aforementioned damping of the pull-out motion of the wire material W. More specifically, the damper unit D can be used, for example, to dampen the opening motion of a lid of a storage unit by connecting the pulled-out end of the wire material W of the damper unit D, which is attached to the storage unit, to the lid that closes the opening of the storage unit so that the wire material W is pulled out when the cover is opened.
  • the reel 1 has a spool 10 around which the wire material W is wound, and a peripheral rack 11 .
  • the reel 1 has a short cylindrical portion 12 , and a disc 13 with one surface integrally connected to one end of the cylindrical portion 12 .
  • the other surface of the disc 13 represents the outer end section 1 ′ of the reel 1 .
  • the outer diameter of the disc 13 is larger than the outer diameter of the cylindrical portion 12 , and a peripheral surface 13 a is formed between the outer edge of the disc 13 and the outer peripheral surface of the cylindrical portion 12 .
  • a cylindrical sleeve 14 In the center of that other surface of the disc 13 , there is provided a cylindrical sleeve 14 with one end integrally connected to that surface and projecting in the direction perpendicular to that surface. Both ends of the sleeve 14 are open, and the inside thereof communicates with the inside of the cylindrical portion 12 .
  • a peripheral flange 12 a is formed around that cylindrical end.
  • the space between the aforementioned disc 13 and the peripheral flange 12 a functions as the spool 10 .
  • a plurality of teeth are formed at equally spaced intervals over the entire periphery of the disc 13 , and this edge portion of the disc 13 functions as the peripheral rack 11 .
  • a cover 15 is assembled on the outer end section 1 ′ of the reel 1 facing away from the recess of base 2 into which the reel 1 , is fitted. More specifically, the cover 15 has a through hole 15 a in the center thereof to allow the sleeve 14 of the reel 1 to pass through. It also has a first portion 15 b , which has a long curved outer edge along the imaginary arc around the through hole 15 a , and a second portion 15 c , which is located on the opposite side of the first portion 15 b and has a short curved outer edge along the aforementioned imaginary arc and a narrower width than the first portion 15 b .
  • the cover 15 also has risers 15 d along the respective curved outer edges of the first portion 15 b and the second portion 15 c . It also has a flange 15 e extending outwardly from the respective projecting ends of the risers 15 d of the first portion 15 b and the second portion 15 c.
  • the end Wa of the wire material W is fixed to the cover 15 by insert molding using the end Wa as an insert.
  • the cover 15 is formed by insert plastic molding upon inserting and embedding the end Wa of the wire material W in the wall thickness of the second portion 15 c in a location between the through hole 15 a and the curved outer edge of the second portion 15 c .
  • the terminal of the embedded portion of the wire material W projects outwardly from the end face of one of the straight edges 15 f formed on both sides of the curved outer edge of the second portion 15 c ; the wire material W is extended through the second portion 15 c in the direction substantially perpendicular to that end face to extend out from the end face of the other straight edge 15 f.
  • the other surface of the disc 13 of the reel 1 has arc ribs 13 b projecting from that surface in four locations along the arc of the imaginary circle around the sleeve 14 .
  • An engaging hook 13 c is formed at the projecting end of each arc rib 13 b so as to project towards the inside of the curve.
  • the peripheral rack 11 of the reel 1 is provided with a slit 11 a opened outwardly at the root of two adjacent teeth among the plurality of teeth constituting the peripheral rack 11 and extending inwardly into the reel 1 for threading the wire material W. That is, in the example shown in the figures, the slit 11 a is formed by cutting out a section of the aforementioned disc 13 of the reel 1 that projects past the cylindrical portion 12 .
  • the end portion Wa of the wire material W can be securely joined with the reel 1 and, at the same time, the wire material W fixed to the cover 15 can be conveniently wound around the spool 10 through the aforementioned slit 11 a .
  • a projection 15 g that fits into the slit 11 a while the wire material W is threaded through the slit 11 a is formed in the curved outer edge of the first portion 15 b of the cover 15 in the location near the straight edge 15 f where the wire material extends out from the second portion 15 c .
  • an anchor 12 b for the outer end 30 of the spiral spring 3 is formed inside the cylindrical portion 12 of the reel 1 in close proximity to the inner surface.
  • the aforementioned other end Wb of the wire material W is fixed to a clip 5 , which includes fastening sections 51 for the dampened subject, by insert molding using the end Wb as an insert.
  • the clip 5 is formed by plastic molding so that the end Wb of the wire material W that will be pulled out of the reel 1 when the middle portion of the wire is wound around the spool 10 of the reel 1 is embedded through the wall thickness of the bulged section 50 formed on one long side of the substantially rectangular sheet-formed clip 5 .
  • a boss 51 a constituting the aforementioned fastening section 51 is formed at each corner of the short side of the clip 5 facing towards the middle portion of the wire material W.
  • the end Wb of the wire material W can be securely connected to the dampened subject via the clip 5 by inserting the pair of bosses 51 a into mounting holes or the like that are formed in the dampened subject in a one-touch operation.
  • the base 2 has a holding recess 20 for the reel 1 , which is oval in shape and has minor axis x and major axis y.
  • the holding recess 20 is formed by allowing one surface of the mounting board 21 to cave in towards the other surface.
  • the holding recess 20 is larger in diameter on the entrance side of the recess and smaller in diameter on the bottom side of the recess.
  • a stepped surface 20 c is formed between the large-diameter portion 20 a and the small-diameter portion 20 b .
  • the reel 1 is rotatably fitted into the holding recess 20 so that the spool 10 of the reel 1 is housed in the small-diameter portion 20 b and the disc 13 is housed in the large-diameter portion 20 a .
  • Holes 21 a for screws or the like are formed in the mounting board 21 to mount the base 2 , or the damper unit D.
  • the damper unit D can be mounted on an inner wall surface of a storage unit, for example, by utilizing these holes 21 a.
  • Engaging hooks 22 which are formed on the bottom side of the holding recess 20 of the base 2 , resiliently deform upon abutting against the peripheral flange 12 a formed at the back end section 1 ′′ of the reel 1 being inserted, from that side first, into the holding recess 20 , and regain their original shapes in the position where the reel 1 is fully inserted into the holding recess 20 to thereby catch the upper surface of the peripheral flange 12 a .
  • the engaging hooks 22 which face the engaging surfaces 22 a towards the bottom of the holding recess 20 , are formed on both sides of the minor axis x of the holding recess 20 .
  • the reel 1 can be rotatably assembled with the base 2 with a one-touch operation, by snapping the reel 1 into the holding recess 20 of the base 2 .
  • the dimension of the minor axis x of the small-diameter portion 20 b of the holding recess 20 is substantially equal to the diameter of the peripheral flange 12 a of the reel 1 , but the dimension of the major axis y of the small-diameter portion 20 b is slightly larger than the diameter of the peripheral flange 12 a .
  • the reel 1 is rotatably held in the holding recess 20 , while movement of the reel 1 along the major axis y to some extent is tolerated.
  • the wire material W is pulled out from one of the sides of the holding recess 20 of the base 2 essentially along the major axis y, while rotating the reel 1 in the reverse direction, and the later described gear section 40 a of the damper member 4 faces the cut-out section 23 formed on that side of the holding recess 20 .
  • a pull-out window 24 is formed by cutting out one portion of the side wall of the small-diameter portion 20 b of the holding recess 20 .
  • the end Wb of the wire material W that is wound around the spool 10 of the reel 1 is pulled out through the pull-out window 24 toward the lower side of the mounting board 21 (as seen in FIG. 1 ), and fed through the guide window 21 b , which is substantially rectangular in shape and formed ahead of the pull-out window 24 , to come out on the lower side of the mounting board 21 and extend out therefrom.
  • a fitting hole 21 c (see FIG. 8 ) for the damper member 4 is formed on one side of the guide window 21 b ; the fitting hole is connected to the holding recess 20 through the cut-out section 23 , which is formed by cutting out one portion of both the large-diameter portion 20 a and the small-diameter portion 20 b of the folding recess 20 , and runs through the mounting board 21 .
  • a cylindrical projection 25 is formed substantially in the center of the holding recess 20 to project from the bottom of the holding recess 20 towards the entrance of the recess.
  • the cylindrical projection 25 has a depth from the projecting end to the base, and is divided into two sections by the slit 25 a that runs in the center.
  • the center end 31 of the spiral spring 3 is inserting into the slit of the cylindrical projection 25 , the center end 31 of the spring is fixed in the substantial center of the holding recess 20 .
  • the center end 31 of the spiral spring 3 is fixed at the substantial center of the holding recess 20 , and the outer end 30 of the spiral spring is fixed to the reel 1 .
  • the spiral spring 3 is constructed to have an outer diameter and width that can be fitted inside the cylindrical part 12 .
  • one of the radii z 1 of the spiral spring 3 from the center end 31 along the major axis y that passes through the center of the holding recess 20 is substantially equal to the other radius z 2 across the minor axis x of the holding recess 20 when a pull-out operation of the wire material W is not performed. ( FIG. 8 ).
  • the damper member 4 has a rotating shaft 40 ; the inner shaft end (omitted in the figures) is rotatably housed in the case 41 containing a viscous fluid, and the outer shaft end has a gear 40 a.
  • the damper member is so configured that the viscous fluid sealed in the case 41 dampens the rotation of the rotating shaft 40 .
  • the rotational axis of the rotating shaft 40 is substantially in parallel to the rotational axis of the reel 1 held in the holding recess 20 .
  • a viscous fluid silicon oil, grease or the like is typically used.
  • the peripheral rack 11 of the reel 1 does not engage the gear 40 a of the damper member 4 .
  • the pull-out force causes the reel 1 to move essentially along the major axis y to one end of the holding recess 20 while also resiliently deforming the spiral spring in the direction of the major axis y of the holding recess 20 . This movement allows the peripheral rack 11 of the reel 1 to engage with the gear 40 a of the damper member 4 .
  • the reel 1 held within the holding recess 20 is moved to one end of the holding recess 20 across the minor axis x while being rotated in reverse, in the direction to reel out the wound wire material W.
  • the spiral spring 3 is resiliently deformed along the major axis y of the holding recess 20 so as to elongate the radius z 1 from the spring center 31 on one side of the holding recess 20 across the minor axis x, while being tightened by this reverse rotation.
  • the damper unit D in this embodiment functions to dampen the pull-out motion of the wire material W when it is pulled out from the reel 1 , while, on the other hand, allowing the reel 1 to perform normal rotation by utilizing the spiral spring 3 thereby smoothly rewinding the pulled-out wire material W without incurring the damping force of the damper member 4 when the pull-out force applied to the wire material W ceases.
  • the damper unit D is disposed in a storage unit, and the pulled-out end (end Wb) of the wire material W is connected to the lid that closes the opening of the storage unit (the dampened subject), for example, only the opening operation of the cover is dampened.
  • the damper unit. D smoothly rewinds the wire material W in accordance with the amount of slack, since pull-out force, or tension, is not applied to the wire material W.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
  • Fluid-Damping Devices (AREA)
US11/193,393 2004-08-04 2005-08-01 Damper unit Abandoned US20060027696A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004-228286 2004-08-04
JP2004228286A JP2006046490A (ja) 2004-08-04 2004-08-04 ダンパ装置

Publications (1)

Publication Number Publication Date
US20060027696A1 true US20060027696A1 (en) 2006-02-09

Family

ID=35756496

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/193,393 Abandoned US20060027696A1 (en) 2004-08-04 2005-08-01 Damper unit

Country Status (3)

Country Link
US (1) US20060027696A1 (ja)
JP (1) JP2006046490A (ja)
KR (1) KR100643459B1 (ja)

Cited By (6)

* Cited by examiner, † Cited by third party
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US20070023557A1 (en) * 2005-07-26 2007-02-01 Vulcan Spring & Manufacturing, Company Retractor having rotary damper and product display utilizing same
US20080118336A1 (en) * 2006-11-16 2008-05-22 Mcilvaine Howard Picking assist mechanism
ITPN20120056A1 (it) * 2012-09-28 2014-03-29 Livenza Ferramenta Srl Dispositivo di controllo della apertura/chiusura di ante a ribalta per mobili e simili
US9562599B2 (en) * 2015-01-05 2017-02-07 GM Global Technology Operations LLC Cam mechanism for tuning of string-dampers on hinged compartments
WO2020087975A1 (zh) * 2018-10-30 2020-05-07 陈金柱 紧固装置
US20210386199A1 (en) * 2020-06-11 2021-12-16 Cis Global Llc Self closing drawer assembly with dual-cam closing mechanism

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US6185868B1 (en) * 1996-09-26 2001-02-13 Toyota Shatai Kabushiki Kaisha Automatic closer of pop-up door of vehicle
US6648260B2 (en) * 2001-07-25 2003-11-18 Delphi Technologies, Inc. Selectable load limiting seat restraint retractor
US6857675B2 (en) * 2002-11-25 2005-02-22 Nifco Inc. Damper unit and glove box device using the same
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070023557A1 (en) * 2005-07-26 2007-02-01 Vulcan Spring & Manufacturing, Company Retractor having rotary damper and product display utilizing same
US20080118336A1 (en) * 2006-11-16 2008-05-22 Mcilvaine Howard Picking assist mechanism
ITPN20120056A1 (it) * 2012-09-28 2014-03-29 Livenza Ferramenta Srl Dispositivo di controllo della apertura/chiusura di ante a ribalta per mobili e simili
US9562599B2 (en) * 2015-01-05 2017-02-07 GM Global Technology Operations LLC Cam mechanism for tuning of string-dampers on hinged compartments
WO2020087975A1 (zh) * 2018-10-30 2020-05-07 陈金柱 紧固装置
US11825911B2 (en) 2018-10-30 2023-11-28 Chin-Chu Chen Fastening device
US20210386199A1 (en) * 2020-06-11 2021-12-16 Cis Global Llc Self closing drawer assembly with dual-cam closing mechanism
US11503909B2 (en) * 2020-06-11 2022-11-22 Cis Global Llc Self closing drawer assembly with dual-cam closing mechanism

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KR20060050093A (ko) 2006-05-19
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