US3438274A - Apparatus for driving an automatic door - Google Patents
Apparatus for driving an automatic door Download PDFInfo
- Publication number
- US3438274A US3438274A US670910A US3438274DA US3438274A US 3438274 A US3438274 A US 3438274A US 670910 A US670910 A US 670910A US 3438274D A US3438274D A US 3438274DA US 3438274 A US3438274 A US 3438274A
- Authority
- US
- United States
- Prior art keywords
- driving
- door
- pulleys
- automatic door
- fixed
- 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.)
- Expired - Lifetime
Links
- 229920005989 resin Polymers 0.000 description 7
- 239000011347 resin Substances 0.000 description 7
- 238000010276 construction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- 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
- F16H—GEARING
- F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
-
- 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
- E05F15/00—Power-operated mechanisms for wings
- E05F15/40—Safety devices, e.g. detection of obstructions or end positions
- E05F15/41—Detection by monitoring transmitted force or torque; Safety couplings with activation dependent upon torque or force, e.g. slip couplings
-
- 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
- E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
- E05Y2900/13—Type of wing
- E05Y2900/132—Doors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/18—Mechanical movements
- Y10T74/18056—Rotary to or from reciprocating or oscillating
- Y10T74/18088—Rack and pinion type
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/18—Mechanical movements
- Y10T74/18056—Rotary to or from reciprocating or oscillating
- Y10T74/18088—Rack and pinion type
- Y10T74/1812—Alternately rotated pinion
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/19—Gearing
- Y10T74/19642—Directly cooperating gears
- Y10T74/1967—Rack and pinion
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/19—Gearing
- Y10T74/19851—Gear and rotary bodies
- Y10T74/19856—Laterally-spaced wheels
Definitions
- An apparatus for driving or operating an automatic door comprising a pushing rod operatively connected to the door, and a pair of pulleys made of resin and arranged to pinch therebetween the pushing rod, one of which is driven by a driving motor through a gear integrally fixed to said one pulley, thereby admitting the frictional slipping between said pulleys and said pushing rod for eliminating any harm to a person and any overloading of said motor when a person is caught by the closing door.
- This invention relates to an apparatus for driving an automatic door.
- the apparatus of this kind has such a construction that two sprockets are mounted on a driving shaft, and on a frame, respectively, these sprockets being wound by a chain belt to which a part of the door is fixed.
- sufficient driving is difficult to be effected since the chain belt is apt to be loosened; the chain belt causes noisy sound in operation; and the seizure of motor is apt to be caused by the overloading of the same and a human body is strongly pinched between the door and the door frame since the sprockets are not rotated when the human body is caught by the closing door.
- This invention aims to eliminate the above-mentioned faults and to provide an apparatus of this sort having a door driving rod and two grooved pulleys driven by a motor and arranged to pinch the rod therebetween so that the pulleys can be idled when a human body is caught by the door, for preventing any accident. Moreover, the apparatus of this invention functions without generating any noisy sound.
- the subject matter of this invention accordingly resides in an apparatus for driving an automatic door, comprising a grooved pulley made of resin and fixed to a driving gear at its one side, said driving gear being fixed to a driving shaft, another grooved pulley made of resin and fixed to a follower gear at its one side, said follower gear being in meshed relation with said driving gear, and a door driving rod pinched by said grooved pulleys for actuation.
- FIGURE 1 is its side view
- FIGURE 2 is its front view
- a driving gear 2 At one end of a driving shaft 1 driven by a motor (not shown), a driving gear 2 is fixed in a meshed relation with a follower gear 3 mounted on a follower shaft 4.
- two rubber pulleys 7 and 8 On a side of said gears 2 and 3, two rubber pulleys 7 and 8 having arcuate cross-section grooves and 6, respec- "ice tively, are fixed so as to pinch a door driving rod 9 of a circular cross-section at their grooves 5 and 6 for allowing leftward and rightward replacements of the rod 9 by the rotation of the grooved pulleys 7 and.
- a reference numeral 10 shows a bearing disc for rotatably supporting one end of the driving shaft 1 and that of the follower shaft 4.
- the apparatus functions as follows:
- a switching means such as a step-plate disposed in front of the door
- the driving gear 2 is rotated in the direction shown by an arrow in FIGURE 2 through the driving shaft 1 by the driving force of the motor, and accordingly the follower gear 3 is rotated in the direction as shown by an arrow in FIGURE 2.
- the grooved pulleys fixed to the one side of the gears 7 and 8 are also rotated in the same directions. Accordingly, the door driving rod 9 pinched between the grooves 5 and 6 is moved leftwards in FIGURE 2 for opening the door.
- the gears 2 and 3 are rotated in the reverse directions by the reverse rotation of the motor for moving the door driving rod 9 rightwards to close the door.
- grooved pulleys 7 and 8 are made of rubber
- the invention is not limited to the use of such rubber only, but any appropriate synthetic resins may be used for this purpose.
- the material is herein mentioned merely as resin.
- the cross-sectional shape of the grooves 5 and 6 of the pulleys 7 and 8 is not limited to the arcuate shape as shown, but may be of rectangular, trapezoidal or any desired shape as occasion demands.
- the shape of the rod 9 of course should be varied.
- An apparatus for driving an automatic door comprising a grooved pulley made of resin and fixed to a driving gear at its one side, said driving gear being fixed to a driving shaft, another grooved pulley made of resin and fixed to a follower gear at its one side, said follower gear being in meshed relation with said driving gear, and a door driving rod pinched by said grooved pulleys for actuation.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Description
APril 1969 KUNIMORI MARUYAMA 3,438,274
APPARATUS FOR DRIVING AN AUTOMATIC DOOR Filed Sept. 27, 1967 United States Patent 3,438,274 APPARATUS FOR DRIgNG AN AUTOMATIC DO R Kunimori Maruyama, Tsurumi-ku, Yokohama, Japan, assignor to Takeshi Yamamoto, Tokyo, Japan Filed Sept. 27, 1967, Ser. No. 670,910 Claims priority, application Japan, Sept. 29, 1966, 41/ 63,739 Int. Cl. F16h 19/02 U.S. Cl. 74-33 1 Claim ABSTRACT OF THE DISCLOSURE An apparatus for driving or operating an automatic door, comprising a pushing rod operatively connected to the door, and a pair of pulleys made of resin and arranged to pinch therebetween the pushing rod, one of which is driven by a driving motor through a gear integrally fixed to said one pulley, thereby admitting the frictional slipping between said pulleys and said pushing rod for eliminating any harm to a person and any overloading of said motor when a person is caught by the closing door.
BACKGROUND OF THE INVENTION This invention relates to an apparatus for driving an automatic door.
Heretofore, the apparatus of this kind has such a construction that two sprockets are mounted on a driving shaft, and on a frame, respectively, these sprockets being wound by a chain belt to which a part of the door is fixed. In such conventional apparatus, sufficient driving is difficult to be effected since the chain belt is apt to be loosened; the chain belt causes noisy sound in operation; and the seizure of motor is apt to be caused by the overloading of the same and a human body is strongly pinched between the door and the door frame since the sprockets are not rotated when the human body is caught by the closing door.
SUMMARY OF THE INVENTION This invention aims to eliminate the above-mentioned faults and to provide an apparatus of this sort having a door driving rod and two grooved pulleys driven by a motor and arranged to pinch the rod therebetween so that the pulleys can be idled when a human body is caught by the door, for preventing any accident. Moreover, the apparatus of this invention functions without generating any noisy sound.
The subject matter of this invention accordingly resides in an apparatus for driving an automatic door, comprising a grooved pulley made of resin and fixed to a driving gear at its one side, said driving gear being fixed to a driving shaft, another grooved pulley made of resin and fixed to a follower gear at its one side, said follower gear being in meshed relation with said driving gear, and a door driving rod pinched by said grooved pulleys for actuation.
BRIEF EXPLANATION OF THE DRAWINGS The accompanying drawings show an embodiment of an apparatus for driving an automatic door of this invention, wherein FIGURE 1 is its side view, and FIGURE 2 is its front view.
DESCRIPTION OF THE PREFERRED EMBODIMENT Now, the apparatus of this invention will be specifically explained with an embodiment illustrated in the drawings. At one end of a driving shaft 1 driven by a motor (not shown), a driving gear 2 is fixed in a meshed relation with a follower gear 3 mounted on a follower shaft 4. On a side of said gears 2 and 3, two rubber pulleys 7 and 8 having arcuate cross-section grooves and 6, respec- "ice tively, are fixed so as to pinch a door driving rod 9 of a circular cross-section at their grooves 5 and 6 for allowing leftward and rightward replacements of the rod 9 by the rotation of the grooved pulleys 7 and. 8. In FIGURE 1, a reference numeral 10 shows a bearing disc for rotatably supporting one end of the driving shaft 1 and that of the follower shaft 4.
By virtue of the above-mentioned construction, the apparatus functions as follows: When a switching means such as a step-plate disposed in front of the door is actuated by a coming person, the driving gear 2 is rotated in the direction shown by an arrow in FIGURE 2 through the driving shaft 1 by the driving force of the motor, and accordingly the follower gear 3 is rotated in the direction as shown by an arrow in FIGURE 2. In accordance with the rotation of both gears, the grooved pulleys fixed to the one side of the gears 7 and 8 are also rotated in the same directions. Accordingly, the door driving rod 9 pinched between the grooves 5 and 6 is moved leftwards in FIGURE 2 for opening the door.
When the weight is removed from the step-plate, the gears 2 and 3 are rotated in the reverse directions by the reverse rotation of the motor for moving the door driving rod 9 rightwards to close the door.
Although it has been explained in the foregoing explanation that the grooved pulleys 7 and 8 are made of rubber, the invention is not limited to the use of such rubber only, but any appropriate synthetic resins may be used for this purpose.
For this reason, the material is herein mentioned merely as resin. Also, the cross-sectional shape of the grooves 5 and 6 of the pulleys 7 and 8 is not limited to the arcuate shape as shown, but may be of rectangular, trapezoidal or any desired shape as occasion demands. In accordance with the shape of the pulleys, the shape of the rod 9 of course should be varied.
Since this invention has the above-mentioned construction and function, the following technical merits can be attained: Even if the door is closed while a person remains within the swinging or sliding range of the door, the person would not be harmed since the movement of the door driving rod 9, which is merely pinched by the pulleys 7 and 8, will be stopped and the grooved pulleys 7 and 8 are slipped and idled without applying any excessive pressure to the person. Since the grooved pulleys 7 and 8 are thus idled, the motor would not be applied by excessive load and would not be seized. Furthermore, there is no fear to generate any noisy sound from the apparatus, since the actuation is effected by the pulleys 7 and 8 made of resin.
I claim:
1. An apparatus for driving an automatic door, comprising a grooved pulley made of resin and fixed to a driving gear at its one side, said driving gear being fixed to a driving shaft, another grooved pulley made of resin and fixed to a follower gear at its one side, said follower gear being in meshed relation with said driving gear, and a door driving rod pinched by said grooved pulleys for actuation.
References Cited UNITED STATES PATENTS 1,218,021 3/1917 Walther 74-422 2,617,139 10/1935 Wood 74--29 2,052,911 9/ 1936 Weathers 74-29 2,590,484 3/1952 Youhouse 7429 FRED C. MATTERN, 111., Primary Examiner. W. S. RATLIFF, 111., Assistant Examiner.
US. Cl. X.R. 7429, 422
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6373966 | 1966-09-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3438274A true US3438274A (en) | 1969-04-15 |
Family
ID=13238066
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US670910A Expired - Lifetime US3438274A (en) | 1966-09-29 | 1967-09-27 | Apparatus for driving an automatic door |
Country Status (1)
Country | Link |
---|---|
US (1) | US3438274A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4342470A1 (en) * | 1993-09-09 | 1995-03-16 | Hoermann Kg Verkaufsges | Drive unit |
DE19920672A1 (en) * | 1999-05-05 | 2000-12-07 | Karlheinz Baumeister | Linear control device has telescopic tube, drive unit with drive wheels driven in synchronism in opposite directions in pairs that engage drive rod on diametrically opposite sides |
US20070295125A1 (en) * | 2004-09-02 | 2007-12-27 | Belimo Holding Ag | Linear Drive |
DE102010007738A1 (en) * | 2010-01-11 | 2011-07-14 | Schmid, Jürgen, 88682 | Friction clutch for use in motor vehicle, has output element arranged in groove of drivable wheels, and force transmission device for pressing output element against part of circumferential wall surface of groove of one drivable wheel |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1218021A (en) * | 1916-12-01 | 1917-03-06 | Dayton Steel Foundry Co | Adjusting and lifting means. |
US2052911A (en) * | 1935-04-15 | 1936-09-01 | Magnador Mfg Co | Door operating mechanism |
US2590484A (en) * | 1949-12-23 | 1952-03-25 | Casco Products Corp | Drive mechanism for extendible antennas |
US2617139A (en) * | 1947-03-14 | 1952-11-11 | Sun Shipbuilding & Dry Dock Co | Means for mounting a castor assembly on a boat |
-
1967
- 1967-09-27 US US670910A patent/US3438274A/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1218021A (en) * | 1916-12-01 | 1917-03-06 | Dayton Steel Foundry Co | Adjusting and lifting means. |
US2052911A (en) * | 1935-04-15 | 1936-09-01 | Magnador Mfg Co | Door operating mechanism |
US2617139A (en) * | 1947-03-14 | 1952-11-11 | Sun Shipbuilding & Dry Dock Co | Means for mounting a castor assembly on a boat |
US2590484A (en) * | 1949-12-23 | 1952-03-25 | Casco Products Corp | Drive mechanism for extendible antennas |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4342470A1 (en) * | 1993-09-09 | 1995-03-16 | Hoermann Kg Verkaufsges | Drive unit |
DE19920672A1 (en) * | 1999-05-05 | 2000-12-07 | Karlheinz Baumeister | Linear control device has telescopic tube, drive unit with drive wheels driven in synchronism in opposite directions in pairs that engage drive rod on diametrically opposite sides |
DE19920672B4 (en) * | 1999-05-05 | 2006-10-05 | Karlheinz Baumeister | Linear actuator |
US20070295125A1 (en) * | 2004-09-02 | 2007-12-27 | Belimo Holding Ag | Linear Drive |
DE102010007738A1 (en) * | 2010-01-11 | 2011-07-14 | Schmid, Jürgen, 88682 | Friction clutch for use in motor vehicle, has output element arranged in groove of drivable wheels, and force transmission device for pressing output element against part of circumferential wall surface of groove of one drivable wheel |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4267875A (en) | Sliding clutch for venetian blind | |
ATE135893T1 (en) | TURN CLOSURE FOR A SPORTS SHOE | |
US4159598A (en) | Door operator with instant reverse feature | |
FR2414664A1 (en) | VARIABLE RATIO TRANSMISSION MECHANISM | |
US3438274A (en) | Apparatus for driving an automatic door | |
JPS60133182A (en) | Automatic opening and closing apparatus of slide door | |
US2526503A (en) | Elevator door | |
US3680622A (en) | Power-transmitting mechanism for side-coiling door | |
US3153942A (en) | Linear actuating arrangement | |
US4715583A (en) | Tension fixture for a curtain | |
US4340377A (en) | Speed change device | |
US3888130A (en) | Rotation responsive variable diameter pulley | |
US2548847A (en) | Means for controlling windows and the like | |
US3545294A (en) | Drive belt tensioner | |
US2571427A (en) | Differential mechanism | |
US4573369A (en) | Linear drive | |
US3498425A (en) | Chain transmission with caliper brake | |
US3363482A (en) | Power transmission arrangement | |
US2318090A (en) | Elevator door operating mechanism | |
JP4453499B2 (en) | Vehicle door opening / closing position holding device | |
US3768323A (en) | Speed responsive variable diameter pulley | |
CA1046798A (en) | Variable speed drive | |
JPH10129959A (en) | Elevator door opening and closing device | |
US2958239A (en) | Variable-speed epicyclic gear train transmission-device | |
WO2007029363A1 (en) | Automatic door device |