JPH0329607A - Power generation method for lift coat hanger - Google Patents

Abstract

PURPOSE:To ensure the smooth rotation of an arm by providing a stop mechanism for generating power even when the arm is at an opening start position via the use of a compression spring and a crank mechanism, and enabling the locking and unlocking of the stop mechanism interlocked with the spring rest of the crank mechanism. CONSTITUTION:Power is generated even when an arm 1 is at an opening start position by using a crank mechanism A comprising a compression spring 8 for obtaining the power (turning drive force) of the arm 1, and a link arm 12 and a fixing plate 6 for compressing the spring 8 up to the opening start position of the arm 1. Furthermore, a stop mechanism 16 capable of being locked or unlocked via interlocking with the spring rest 10 of the crank mechanism A is provided, thereby enabling retaining the arm 1 in a rest condition at the opening start position and at a desired open angle against an arm power. As a result, the arm 1 can be safely and smoothly turned down or up.

Description

[Detailed Description of the Invention] <<Industrial Application Field>> The present invention provides a storage section at a required height such as a cabinet or a side wall of a room, and a lever is operated to lower the storage section from a low position. This allows the arm to be folded forward and rotated back to the upright position, allowing coats, clothes, etc. to be hung or removed from the hanger pipe installed at the upper end of the arm. This paper relates to a method of generating power (rotational driving force) for an arm in a so-called lift coat hanger that can be stored in a holder, and a device therefor. 《Prior Art》 Currently, there is a known lift coat hanger that uses a compression spring to obtain arm power through a crank mechanism. This lift coat hanger is
As illustrated in FIG. 13, the lower end of arm a is rotatably supported on a fixed plate c provided on damper b, and arm a has a compression spring d, one end of which is supported by arm a. The other end of the compression spring d is supported by a spring holder e that is slidably mounted on the arm d, and the amount of deflection of the compression spring d when the arm a is rotated and lowered is the amount of deflection of the compression spring d. The link arm f, which links the spring receiver e and the fixed plate C, and the arm a and the fixed plate C, are arranged so that they are larger in the open position (forward-folded state) than in the closed position (erected state). These form a crank mechanism g, and the compression spring d is configured to provide power to the arm a via the crank mechanism g.

《Problem to be solved by the invention》 J.2 When using a conventional lift coat hanger, the first
As shown in the load curve in Figure 4, when the arm d is lowered from the closed position A (storage position), which is in the high position with the arm d raised, to the open position, which is the low position with the arm d tilted forward, the compression The spring d is compressed by the crank mechanism 8 via the spring receiver e, and the power (returning force) of the arm a is stored.
At a position C (90° in the illustrated example) where the center line h of the arm a reaches a line k (consideration point) connecting the fulcrum 1 of the arm a and the pivot point j of the link arm f, the compression spring d The amount of deflection of is maximum, and as arm a is further rotated and lowered, compression spring d is expanded, and the power of arm a is rapidly attenuated, reaching the arm open position (100 in the illustrated example).
By setting the power of the arm to zero at (°), the arm a can be held in the open position in a stopped state. Moreover, as the arm a rotates downward, the arm torque increases, so when rotating the 7-mu a downward.
If a large load is applied (a large number of clothes, etc. are suspended), the arm a may suddenly descend from the important point C to the open position, which could be dangerous. , the operation of raising arm d from the opening position to the position C, which is a consideration point, becomes difficult, and the operability of arm a also has problems such as J twisting. As a result of studies in view of the above-mentioned problems, the present invention was developed by using a compression spring that obtains the rotational driving force of the arm and a crank mechanism that compresses the spring to the open position of the arm. By generating power even when the arm is in the open position, and by providing a stop mechanism that can be locked and unlocked in conjunction with the spring receiver of the crank mechanism, it is possible to prevent the arm from collapsing. A power generation method for a lift coat hanger, in which the arm can be safely and easily rotated down and rotated up by maintaining the open position and the position 1 trowel at the desired opening angle, and the stopped state. We are trying to provide that equipment. <Means for Solving the Problems> In order to achieve the above object, the present application provides a fixing plate having a hanger suspension pipe attached to the upper end and fixed to the damper at the lower end. By rotating and lowering an arm that is rotatably supported by a shaft and can be rotated by operating a rotation operation lever from an upright closed position to a forward-folded open position, one end of the arm can be attached to the arm. A link connecting the spring holder and the fixing plate in such a manner that the amount of deflection of the internal compression spring is increased when the spring holder is supported and the other end is slidably supported by the internal spring holder. After the crank mechanism formed by the link arm, the arm, and the fixed plate rotates by a predetermined angle using the pivot point between the link arm and the fixed plate as a fulcrum, the pivot point between the link and the link arm rotates. By moving a predetermined amount and rotating the link using the pivot point as a fulcrum, the amount of deflection of the compression spring is further increased, and the compression spring provides rotational driving force in the movable range of the arm and in the open position. At the same time, a stop mechanism is formed on the arm so that it can be locked and unlocked freely in conjunction with the spring receiver, so that the arm can be moved to a desired opening angle M. The present invention aims to provide a method for generating power for a lift coat hanger, which is characterized in that it is held at the In position and in the Stop+H state. According to claim (2), the lower end of the arm is provided with a hanger suspension pipe attached to the upper end and is rotatable by a rotation operation lever, and the lower end of the arm is rotatably attached to a fixed plate fixed to the damper. In addition to being pivotally supported, a compression spring is installed in the arm with one end supported in the arm and the other end supported in a spring holder that is slidably installed in the arm, and the rotation of the arm is supported. A link and a link that connect the spring receiver and the fixing plate in an arrangement such that the amount of deflection of the compression spring when the arm is lowered is greater in the open position in which the arm is tilted forward than in the closed position in which the arm is in the upright position. A crank mechanism is formed by the arm, the arm and the fixed plate, and after the crank mechanism rotates at a desired angle using the pivot point between the link arm and the fixed plate as a fulcrum, the pivot point between the link and the link arm is rotated. The compression spring is made movable by a predetermined amount, and only the link rotates using its pivot point as a fulcrum, thereby further increasing the deflection of the compression spring. l! At the same time, the pivot of the pivot portion is slidably fitted into a long hole formed in the fixing plate, and a plurality of stopper pins are protruded from the arm at desired intervals, and the spring The stop is achieved by a rod that can freely slide in conjunction with the receiver, and a pair of stopper cams that are pivotally connected to each stopper pin of the rod so that they can rotate freely to engage and dislocate, and are held in an opposing state by a spring. The power generating device for a lift coat hanger is characterized in that the above-mentioned stop mechanism obtains a function of stopping and holding the arm at a desired opening angle position and opening position. 《Operation》 The external force caused by pulling the lever is applied to the arm as a rotational force, so that the arm, which is in the upright state when closed, is rotated forward and lowered around the fulcrum of the fixed plate, and at this time, the crank mechanism is The arm rotates around the pivot point between the link arm and the fixed plate, and the compression spring is compressed by the crank mechanism via the spring receiver, storing the power (return force) of the arm. When the arm is rotated to a preset angle (for example, 70°), the crank mechanism also rotates around the L axis, as the rotation angle between the link and the link arm is regulated by the long hole of the fixed plate. is stopped at a position after moving a predetermined amount. From this point on, the fulcrum of the entire crank mechanism was
Moving from the fulcrum of the link arm and the fixed plate to the pivot point of the link and link arm, the above angle of the arm (70°
) From then on, only the link will rotate using the above pivot as a fulcrum, so when the arm is rotated down to the open position,
The amount of deflection of the compression spring is increased. That is, the power of the arm is maximum at the open position. When the arm is rotated and lowered, the rod of the stopper mechanism slides toward the tip of the arm in conjunction with the spring receiver, so when the arm reaches a preset desired opening angle position, , a first stopper bin located near the tip of the rod contacts the lower surface of a pair of stopper cams, rotates the cams upward against the spring force, and a first stopper bin is recessed in each of the opposite ends of the cams. The stopper pin is engaged with the engagement recess in the rod, and the rod is held in this position. Therefore, the arm is stopped and held at the desired opening angle position against the force. When the arm is rotated further down from the opening angle and reaches the open position, the rod is further pushed and slid toward the tip of the arm, so that the first
The engagement between the stopper pin and the pair of stopper cams is released, and the second stopper pin engages with the stopper cam instead, the rod is held in this position, and the arm is stopped at the open position. Retained. When the arm is held in the open position, by slightly rotating and lowering the arm, the spring receiver is pressed and slid toward the tip of the arm, so that the second stopper for the pair of stopper cams When the engagement of the bin is released, the pair of stopper cams are rotated back to their opposed state by the spring. Therefore, when the rotational downward force of the arm is released, the arm will rotate upward due to the power stored in the compression spring, but at this time, the movement of the link and crank mechanism will be opposite to that described above. Also, as the arm is rotated and raised, the spring receiver slides along with the rod toward the lower end of the arm, so at this time, the second and first stopper bins are placed on the upper surface of the pair of stopper cams. As they sequentially come into contact with each other, the stopper cam rotates downward against the spring force, allowing the stopper pin to pass through the stopper pin, so that the arm rotates upward without being stopped midway. It is held in the closed position in the upright position. <<Embodiments>> Examples of the present invention will be described below with reference to the drawings. First, before explaining the power generation method according to claim (1) of the present application, the power generation device according to claim (2) which can be used in the power method will be described in detail below. As shown in Figures 1 and 2, the straight rod-shaped arm 1 has a vibrator or rod attached to its upper end for hanging the hanger 2, etc., as shown in Figure 1O. piebe 3
is installed horizontally, and a lever 4 for rotating the arm l in both up and down directions is installed vertically.In this case, the lever 4 is attached not to the arm l, but to the hanger suspension pipe. It may be attached to 3. The arm 1 is pivotally connected to the center of a fixed plate 6 whose lower end is fixed to the damper 5 by a shaft 7, so that it can freely rotate in the front-rear (up-down) direction. A compression spring 8 is housed in the arm l with one end (upper end) supported by a holder 9 fixed near its upper end, and the other end (
A spring holder lO supporting the lower end is installed so that it slides automatically in the length direction of the arm l. In order to enable the spring receiver 10 to slide smoothly inside the arm l, a roller 10b having an outer diameter matching the inner diameter of the arm l is mounted on the main body 10a, and a roller 10b is mounted on a shaft so as to be rotatable at a pin IOc. It is a supported structure. One end (upper end) of the link 11 is rotatably attached to the spring receiver 1O by the pin 10c. The lower end of the link 11 projects outwardly from a vertically elongated window hole 1a cut out on one side of the lower end of the arm 1, and the lower end of the link 11 and the link arm 1
One end (lower end) of the link arm 2 is rotatably connected by a pin 13, and the other end (upper end) of the link arm 12 is rotatably supported by a fixed plate 6 by a pin 14. The arm l, the fixed plate 6, the link 11, and the link arm 12 form a crank mechanism^. Here, the stopper l2a that abuts the link I+ is attached to the link arm 12 so that the link l1 and the link arm l2 can rotate together by a certain angle using the bin l4 as a fulcrum when the arm l rotates and descends. It is curved on one side. Also, the pivot point P (pin 14) between the fixed plate 8 and the link arm l2 is located an appropriate dimension forward of the fulcrum 0 (axis?) of the arm 1, and is located horizontally through the fulcrum 0. The spring 8 is provided at a position a small dimension below the straight line 2, so that the compression spring 8 is compressed and deformed when the arm 1 is rotated and lowered forward. In the illustrated example, the arm l, in the closed position E, is aligned with the vertical line passing through the fulcrum 0, but it is tilted backward by a desired angle from the vertical line, that is, to the left in Figure $1. The inclination angle of the link 1 is arbitrarily set in advance so that the link 1 is held upright.
1. It may be arranged to be linked to the fixed plate 8 by a link arm l2. Further, when the arm l is rotated and lowered from the closed position E to the desired opening angle position T (set to 70° in the illustrated example), the link 11 comes into contact with the stopper 12a of the link arm l2. , the link l1 and the link arm l2 rotate together around the fulcrum P, and furthermore, the link l1 and the link arm l2 rotate together from the opening angle position to the opening position of the arm l (set to 90' in the illustrated example). ) and the unlocked position (the unlocked position in the arm open position described later), the pin l3 is rotated so that only the link 1l is rotated about the pin l3, which is the pivot point with the link arm l2, as the fulcrum Q. is slidably fitted into an arc-shaped elongated hole l5 formed in the fixing plate 8. Therefore, arm l
When rotated forward from the closed position E shown by the solid line in Figure 1, that is, toward the right in the figure, the spring retainer lO is pushed into the arm I by the link H due to the positional relationship of the fulcrum P of the link arm l2. As a result, the compression spring 8 is compressed, and power (driving rotational force) in the direction of rotating and raising the arm 1 is stored. Until the arm l is rotated and lowered to the desired opening angle position T shown by the two-dot broken line in FIG. The pin l3 which pivotally connects the link l1 and the link arm 12 and the elongated hole 15 of the fixing plate 6
According to the relationship, the fulcrum Q of the link 11 due to the bin l3
moves from the position shown by the solid line in Fig. 1 to the R point position shown in Fig. 2, and the rotation of the link arm l2 is blocked. Only the link l1 rotates, and the spring holder lO is connected to the arm by the link U! This causes the compression spring 8 to be further compressed, so as the arm l is rotated and lowered sequentially to the desired opening angle position G, open position H, and non-operating position, the compression spring 8 will become more compressed. The amount of deflection is increased, and the power is increased in the direction in which the arm l is rotated and raised. In this way, even when the arm 1 is in the open position, there is power as a return force, so it is necessary to forcibly stop and hold the arm 1 in the open position. Next, the stop mechanism 16 of 7-mu L will be explained with reference to the drawings. As shown in FIGS. 1, 3 to 9, the arm 1 is provided with a rod 17 whose base end is connected to and interlocks with the spring receiver 10. The load 17 is formed of a band-shaped plate, and its upper end slides into a center hole 9a extending vertically through the holder 8, which also serves as a spring receiver and is fixed near the upper end of the arm 1. It is inserted so that it can move freely. The rod l7 is located at its upper end, and a plurality of (three in the illustrated example) stopper pins 18, that is, a first stopper pin 18a, a second stopper pin 18b, and a sound pin 18c, are located at the tip of the rod 17. They are installed horizontally in order from the top and at regular intervals, penetrating both the front and back sides. on the other hand. As clearly shown in FIG. 5, the center hole 9a of the holder 9 has a substantially cross-shaped cross section, so that the rod 7 and the stopper bottle 18 are arranged in such a way that rotation in the direction around the axis is prevented. It is inserted so that it can slide freely in the vertical direction. At the center of the upper surface of the holder 9, a support member l9 whose side surface is curved in a substantially U-shape is fixed. The support member 19 has a pair (two) of stopper cams 20.20 degrees arranged on the left and right in the front and rear of the support member 19, and are pivoted opposite to each other at pins 21 and 21' so as to be freely rotatable in the vertical direction. Each of the stopper cams 20, 20' has engagement recesses 22, 22° in which the stopper pin l8 is removably engaged at the lower part of its rotating end. Each pin 21.2 in each stopper cam 20.20'
Arms 23 and 23 degrees are fixed to the ends of the arms 23 and 23 degrees in an opposing arrangement, and a tension spring 24 is tensioned between the tips of both arms 23 and 23 degrees. A pair of stopper cams 20, 20° are provided via each arm 23, 23' so as to be held in a reciprocating state in an opposed state. Here, in the closed position of the arm l, the rod l7 is held in the lowered position together with the spring receiver lO, so that the upper end of the rod z7 is in a lower position than the pair of stopper cams 20, 20'. is held in
In this state, the pair of stopper cams 20, 20' are held in opposition by the tension spring 24. When the arm] is rotated forward and lowered from the closed position E, the spring receiver 10 is pressed and slid toward the tip of the rod 17 by the crank mechanism A, as described above, thereby compressing the compression spring 8. However, at this time, the rod 17 is interlocked with the spring holder 1O, moves closer to the pair of stopper cams 20 and 20', and the first stopper pin +8a is attached to each tip of the stopper cams 20 and 20°. By abutting the lower surface and further pushing up the rod l7, the pair of stopper cams 20, 20' are rotated upward against the tension of the tension spring 24, resulting in a substantially V-shaped arrangement from the front. , and both engaging recesses 22 , 22
゜ opens upward, and the first stopper pin 18a is engaged in the state shown in FIG. 7, and in this state, the pair of stopper cams 20 are
．． The stopper cam 20.2 is rotated downwardly by the stopper bin 18a of tJIl1.
0' is held in that state, and the first stopper bottle 18a is held in the state shown in the figure because the restoring force of the compression spring 8 is applied downward via the rod 17. Therefore, the arm 1 is held at the desired opening angle position shown in FIG. When the arm 1 is rotated further down from the above position, the rod 17 is moved by the crank mechanism A through the spring holder lO.
is further pushed up, so the first stopper pin 1
8a is disengaged from the pair of stopper cams 20, 2Q', but then the second stopper pin 18
b pushes up and rotates the pair of stopper cams 20 and 20', and in the same way as described above, the second stopper pin 18b pushes up and rotates the pair of stopper cams 20 and 20'.
In this state, the arm l is held in position as shown in FIG. When the arm 1 is further rotated downward from the open position, the rod l7 is pushed up, and the second stopper pin 18b is removed from the pair of stopper cams 20, 20°, and at the same time the tension spring 24 As a result, the stopper cams 20 and 20'' rotate back and forth to the opposite position as shown in Fig. 9, and hit the empty bin 18c, making a clicking sound, and as a result, all the stoppers are released. , At this time, when the rotational downward force of the arm l is released, the power (returning force) stored in the compression spring 8 gives
The arm l is rotated and raised, and at this time the rod l7
The second stopper pin 18b comes into contact with the upper surface of the stopper cam 20, 20° by descending together with the spring receiver lO, but its engagement recess 22, 22° is located at the lower part of the stopper cam 20, 20'. Since the second stopper pin 18b is recessed opposite to the engagement recess 22, 22°, the second stopper pin 18b passes through the stopper cam 20, 20° while pressing downward and rotating. ．． As the arm 1 is further rotated and raised, the first stopper pin 18a also moves to the stopper cam 20, as described above.
20 degrees and passes downward without being engaged, the arm l rotates upward to the closed position E and is held at that position E. In Figures 10 and 11, B indicates the cabinet and C indicates the storage section, respectively. Next, a method for generating power in the lift coat hanger according to claim (1) will be explained. This method uses a power generating device equipped with the crank mechanism A as described above to generate arm power at the open position of arm L. That is, as shown in FIGS. 1 and 2, when the arm 1 is rotated downward from the closed position E, the link 11 is engaged with the stopper 12a of the link arm 12, so that the link 1l is engaged with the stopper 12a of the link arm 12. The link 11 and link 7-m1
2 rotates together in the clockwise direction around the fulcrum P,
The spring receiver lO is pushed into the arm l via the link ll, thereby compressing the compression spring 8. When the arm l is rotated and lowered to the desired opening angle position T (set to 70'' in the illustrated example), at this time, the links 11,
The link arm l2 is engaged and guided by the pin l3 in the elongated hole l5 of the fixed plate 8, and after rotating by the required angle, the fulcrum Q by the pin l3, which pivotally connects the link ll and the link arm l2, reaches point R. It moves and stops. When arm l is further rotated and lowered, only link 11
As the compression spring 8 is rotated around the fulcrum Q located at the above-mentioned point R, the amount of deflection of the compression spring 8 increases, and the arm l reaches the open position shown in FIG. 2 (set to 90 degrees in the illustrated example). Arm power is also generated at the on-naki position (set to 100' in the illustrated example). As shown in Fig. 12, the above arm power is calculated from 0'' when the arm l is at the closed position E to the desired opening angle position (
70°), and further increases the force from position G to the open position (90°) and the soundless position (100"), and with the arm power, the arm l becomes noisy. It will be rotated from the open position to the closed position. In this way, arm power is generated over the entire movable range of the arm 1, and the power is further increased when the arm 1 is in the open position and the off-tone position. Incidentally, the fulcrum Q of the crank mechanism A does not move to the R point,
When the crank mechanism A rotates about the fulcrum P, the arm power is gradually attenuated as shown by the broken line in FIG. <<Effects of the Invention>> As explained above, according to the lift hanger power generation method according to the present invention, the arm power as the arm return force gradually increases until the arm reaches the desired opening angle position close to the arm opening position H. However, after the position G, the force increases further, and the arm is held at a desired position such as the opening position A or the desired opening angle position G by a stop mechanism against the arm power. , When rotating and lowering the arm from the closed position E, which is in the upright position, to the open position H, which is the lower position in which it is tilted forward, the arm will not descend suddenly even if a large load is applied. In order to correct the risk of this happening, it is possible to hold the arm in a stopped state at the desired opening angle position and opening position simply by using a simple stop mechanism without the need to separately equip a complicated mechanism. In addition, when the arm is rotated to the closed position E, it is only necessary to unlock the arm, and unlike the conventional example, there is no need for an operation to pull the arm up to the link point, so the arm can be moved smoothly and easily. The rotation can be increased. Furthermore, the device of the present invention naturally has various functions that can be applied to the above-mentioned method, and in particular, the crank mechanism ^ can move the mutually interconnected links, link arms, and pins that interconnect them by a predetermined amount. It consists of an elongated hole that engages, and the stop mechanism has a simple structure consisting mainly of a rod and a pair of stopper cams. By providing this, the arm can be held at any position depending on the setting location, etc.

[Brief explanation of drawings]

Fig. 1 is a longitudinal side view of a lift coat hanger equipped with a power generation device used in the power generation method for a lift coat hanger according to the present invention, and Fig. 2 is a partial view of the lift coat hanger in a state where the arm is rotated and lowered. A cutaway side view, FIG. 3 is a longitudinal sectional front view showing an embodiment of the stop mechanism in the device, FIG. 4 is a side view of the stop mechanism, and FIG. 5 is a v-v line arrow in FIG. 3. 6, 7, 8, and 9 are explanatory diagrams sequentially showing the operating states of the stop mechanism, and Figures 10 and 11 are examples of how the lift coat hanger is used. Fig. 12 is a chart showing the torque characteristic curve against the pull-down angle of the arm in the same power generation method as before; Fig. 13 is a longitudinal side view showing a conventional example of a lift coat hanger; Fig. 14 is a chart showing the torque characteristic curve with respect to the pull-down angle of the arm in a conventional lift coat hanger. 1φ No.◆◆●・Arm 3...Hanger hanging pipe 4-●-●●◆Lever 5...Damper 6...Fixing plate 8...・Compression spring 10... Spring holder l1... Link l2... Link arm 13.14... Pin l5... Long hole 18. ... Stop mechanism 17 ... Rod l8 ... Stopper bin 20, 20° ... Stopper cam A ...
・Crank mechanism H...Closed position T...Desired opening angle position C...Open position...Naki position

Claims (2)

[Claims] (1) A hanger suspension pipe is attached to the upper end, the lower end is rotatably supported by a fixed plate fixed to the damper, and the arm can be rotated by operating the rotation operation lever in the upright state. By rotating and lowering from the closed position to the open position in the forward-folded state, the compression spring installed in the arm is supported at one end, and the other end is slidably supported by the internal spring holder. A crank mechanism formed by a link and a link arm that connect the spring receiver and the fixing plate, and the arm and the fixing plate is arranged such that the amount of deflection is increased, and the link arm and the fixing plate are pivotally connected. After rotating by a predetermined angle using the link as a fulcrum, the pivot portion between the link and the link arm moves a predetermined amount, and the link rotates using the pivot as a fulcrum, thereby further increasing the amount of deflection of the compression spring. The compression spring provides rotational driving force in the movable range of the arm and the open position, and the stop mechanism is formed on the arm so as to be lockable and unlockable in conjunction with the spring receiver. A method for generating power for a lift coat hanger, characterized in that the arm is held in a stopped state at a desired opening angle position and opening position against the rotational driving force thereof. (2) The lower end of the arm, which has a hanger hanging pipe attached to its upper end and can be rotated by a rotation operation lever, is rotatably supported by a fixed plate fixed to the damper, and A compression spring is installed in the arm, with one end supported by the arm and the other end supported by a spring holder slidably installed in the arm, and the amount of deflection of the compression spring when the arm rotates and descends. a link and a link arm that connect the spring receiver and the fixing plate, and the arm and the fixing plate in an arrangement in which the arm is larger in the open position when the arm is in the upright state than in the open position when the arm is in the upright state. forms a crank mechanism, and after the crank mechanism rotates a desired angle about the pivot point between the link arm and the fixed plate as a fulcrum, the pivot point between the link and the link arm can move by a predetermined amount; Only the link rotates using the pivot part as a fulcrum, and the pivot of the pivot part is slidably engaged in a long hole formed in the fixing plate in such a manner that the amount of deflection of the compression spring is further increased. A plurality of stopper pins are protruded from the arm at desired intervals, and a rod is slidable in conjunction with the spring receiver, and the rod is rotatably opposed so as to be freely engageable and detachable from each stopper pin of the rod. A stop mechanism is formed by a pair of stopper cams that are pivotally connected and held in an opposing state by a spring, and the stop mechanism obtains a function of stopping and holding the arm at a desired opening angle position and opening position. A power generating device for a lift coat hanger characterized by: