KR20100038056A - Assist device for moving body - Google Patents

Abstract

PURPOSE: An assist device for a moving body is provided to improve generality and quality of the device by changing elastic force without applying a load. CONSTITUTION: An assist device(1) for a moving body comprises a latch mechanism and a controller. The latch mechanism is formed in a housing(2) and a latch. An extruded body(3) is protruded from the housing using elastic force. The controller is formed in the housing and a retentive body(6), and changes initial elastic force when stored elastic force is completely discharged.

Description

Assist device for moving object {ASSIST DEVICE FOR MOVING BODY}

The present invention assists the movement operation from the first position to the second position or from the second position to the first position of the movable body when the movable body is moved between the first position and the second position of the stationary body. The present invention relates to an assist device. Here, the movable body is a door, a tray, a sliding door, a drawer, or the like. The first and second positions of the stationary body are, for example, an open position and a closed position in the case of a door or a sliding door, a withdrawal position, a use position and a press-in position or a storage position in the case of a tray or a drawer.

This kind of assist device is known, for example, as an opening aid of a door as disclosed in Patent Document 1, and includes a cylindrical case, a spring disposed in the case, and a spring that is housed in the case so as to be sunk. It consists of an elastic protruding rod that protrudes by the force of force.

The assisting device is a pivoting door having a locking means (latch) that rotates with respect to the stationary side door holder and maintains a closed posture. And one of the sides of the doorpost adjacent to this section is attached to one side. Or in a sliding door, it attaches to either one of the cross section of a door, and the side surface of the door holder adjacent to this cross section in the attitude | position which closed the said door.

In addition, since the door is always held in the open direction by the pressing force of the protruding rod body at the time of closing the door, it is easy to operate only by releasing the locking means (latch), for example, for a physically handicapped person. The door can be opened and fluctuations in the door can be prevented.

Patent Document 1: Japanese Patent Application Laid-Open No. 11-280329

In the conventional structure described above, it is particularly restricted for a purpose or lacks in versatility. That is, in the conventional structure, since the door is always held in the open direction by the pressing force of the protruding rod body at the time of closing the door, the locking means for maintaining the closed position of the door due to the load of the extruding force. ) Is essential, or the set value of the force is easily constrained in relation to the locking means, and the extruding force is constant, so even if it is manufactured for the door, the range that can be used is narrow, and the load or transfer resistance The other doors had to be designed and manufactured individually.

Here, the object of the present invention is to solve the above-mentioned problems, and do not apply a load in the state of accumulating the extruding force. And improving the quality.

In order to achieve the above object, the present invention, when moving the movable body between the first position and the second position of the stationary body, is provided in any one of the movable body and the stationary body, the grip force for the movement of the movable body In the assisting apparatus assisted by the step, in the process of moving the movable body to the first position or the second position, the extruding grip force in the second position or the first position direction is accumulated and the accumulated grip force is maintained. And a latching mechanism for releasing the holding of the holding force by moving the moving body in the same direction again, and an adjusting means for changing the holding force.

As for the said assist apparatus, it is more preferable to embody as follows.

(1) The adjusting means is configured to selectively change the holding force by a plurality of predetermined strong / medical setting units (claim 2), or any value or steplessly within the predetermined range. Is any one of the configuration (claim 3) to change to.

(2) The assist device includes a cylindrical main body; An extruded body slidably disposed in the main body, the extruded body being retracted into the main body and converted into a protruding state protruding from the main body; A support member holding the extruded body in a direction protruding from one end of the main body; A latch interposed between the stop member and the extruded body; And a holding body supporting one end of the holding member, wherein the latch mechanism is formed in the main body and the latch to convert the extruded body into the retracted state and the protruding state by using the holding force of the holding member. The adjusting means may include a main groove formed in one of the main body and the holding body and extending in a different direction from a main groove extending in a moving direction of the extruded body and a part of the main groove, the main body and The other one of the retainers is formed on the other side and has a fitting portion that is fitted to the main groove and the sub groove, the relative sliding and rotation of the fitting portion of the engagement portion with respect to the main groove and the sub groove It is a configuration (claims 4 and 5) which is changed through operation.

(3) The assist device includes a cylindrical main body; An extruded body slidably disposed in the main body, the extruded body being retracted into the main body and converted into a protruding state protruding from the main body; A support member holding the extruded body in a direction protruding from one end of the main body; A latch interposed between the stop member and the extruded body; And a holding body supporting one end of the holding member, wherein the latch mechanism is formed in the main body and the latch to convert the extruded body into the retracted state and the protruding state by using the holding force of the holding member. The adjusting means may include a male screw portion formed on one of the main body and the holding body and extending in a moving direction of the extruded body, and formed on the other of the main body and the holding body, and being screwed on the male screw portion. It has a female threaded part to be coupled, and it is a structure (claims 6 and 7) which changes the connection part of the said holder with respect to the said main body through the relative rotation operation of the said main body and the said retainer in the screwed state of the said male screw part and the female screw part.

(4) The extruded body has a constitution (claim 8) having an impact absorbing member provided on the tip side.

(5) The shock absorbing member installed in at least one of the respective restricting portions while preventing the extruded body from falling out and keeping the extruded state by the contact between the restricting portion formed in the extruded body and the restricting portion formed in the main body. (Claim 9, 10).

In the invention of claim 1, a description will be given with reference to FIG. 3 as an example. In the process of moving the movable body to the first position (closed position) of the fixed body, the force of force in the second position (open position) direction is accumulated and accumulated at the same time. It is provided with a latch mechanism for maintaining the held force, and releasing the hold of the force by moving the moving body in the same direction again, and adjusting means for changing the force.

Since the assist device maintains the holding force accumulated by the latch mechanism in the first position (closed position) of the fixed body, as compared with the conventional structure, for example, the fixed body is held in the first position (closed position). There is no need for a locking means such as a locking device, and even if the locking means is provided, no load is applied to the locking means. At the same time, since the holding force can be changed by the adjusting means, it can be used even when the load when moving the moving body (door, etc.) is different, and it can be used in an optimal state at all times even after installation.

In the invention of claim 2, since the adjusting means is configured to select the force of the bullet force as a strong or weak grade (for example, strong-weak, strong-medium-weak, etc.), fine adjustment is lacking, but it can be changed accurately and quickly. have. On the other hand, in the invention of claim 3, the adjusting means can fine-adjust the finger force steplessly, that is, more precisely.

In the invention of Claims 4 and 5, the assist device is composed of a main body, an extruded body, a holding member, a latch mechanism, and a holding body, and the adjusting means slides and rotates the holding body in the direction of movement of the extruded body with respect to the main body. Claim 1 or 2 can be implemented with few members. On the other hand, in the inventions of claims 6 and 7, the assist device is composed of a main body, an extruded body, a holding member, a latch mechanism, and a holding body, and the adjusting means rotates the holding body with respect to the main body. Can be carried out with fewer members.

In the invention of claim 8, when the example of Fig. 3 is described, the extruded body abuts against the opposing surface of the opposite side (moving body 11 in Fig. 3) through the shock absorbing member provided on the tip side thereof. Concerns about occurrence and impact sound can be eliminated. On the other hand, in the inventions of claims 9 and 10, for example, even when the holding force or the accumulated accumulated force of the holding member is strongly set, it occurs when the extruded body is switched from the retracted state to the protruding state by the accumulated holding force. Easy to solve the impact sound.

EMBODIMENT OF THE INVENTION Hereinafter, as embodiment of this invention, the 1st Embodiment of FIGS. 1-8, the 2nd Embodiment of FIG. 9 and FIG. 10, and the 3rd Embodiment of FIG. 11 and FIG. 12 are demonstrated. In the description of the present invention, after clarifying the structure and operation of the first embodiment, the deformation point of the second embodiment and the change point of the third embodiment will be described.

[First embodiment]

As shown in FIG. 3, when the assist device 1 of the first embodiment moves the door 11 between a closed position and an open position of a housing 10 such as a storage compartment, the door 11 is moved. And a structure provided in any one of the housings 10 to assist the movement of the door 11 by the force of the grip, and as shown in FIG. 5, slides in the cylindrical housing 2 and the housing 2. An extruded body 3 arranged so as to be possible, a support member 4 for holding the extruded body 3 in the protruding direction, a latch 5 interposed between the support member 4 and the extruded body 3, and And a holding body 6 supporting one end of the holding member 4, and formed on the latch 5 and the housing 2 to use the holding force against the extruded body 3 with respect to the housing 2. And a latching mechanism formed on the housing 2 and the holding body 6 so as to be able to switch between the retracted state and the protruding state. Adjustment means for releasing the maintenance of the force, and for changing the initial force in the state in which all accumulated force is released, that is, the force in the state before the force set in the device is accumulated. Equipped.

In addition, although the door 11 and the housing | casing 10 are shown as an example of a movable body and a fixed body, these movable bodies and a fixed body are not limited to this, For example, the rotating door disclosed by patent document 1, and The door holder which supports this door through a hinge, the sliding doors, such as a sliding door, the door frame which supports this moveably, a tray, and the storage body which draws this in and out may be sufficient. Of the constituent members, the housing 2, the extruded body 3, the latch 5, and the holder 6 are all made of a resin molded body, but may be made of other than resin.

Here, as shown in FIG. 6, the housing 2 has a long cylindrical portion 20, a mounting portion 21 formed on the outer circumference of the cylindrical portion 20, and protrusions formed on both sides of the mounting portion 21. It has the attachment part 22 in which the attachment hole 22a was formed in the center. In the cylindrical part 20, the right side in FIG. 6 becomes the front side to which the extruded body 3 stands out, and the left side becomes the rear side which attaches the holding body 6, The inside is slightly forward from the rear side to the front and middle. A larger diameter inner diameter 24 (hereinafter, simply referred to as a large inner diameter 24) is formed, and a front side is smaller diameter inner diameter 25 (hereinafter, referred to simply as a smaller inner diameter 25). Formed. On the outer periphery of the rear end of the cylindrical part 20, a pair of adjustment grooves 23 are formed in the upper and lower parts.

Each adjustment groove 23 is connected to the tip of the introduction groove 23a and the introduction groove 23a having an approximately L-shape through the rear end of the cylindrical portion 20, and also in the longitudinal direction of the cylindrical portion 20 (i.e. , The main groove 23b extending in the moving direction of the extruded body 3 and the sub groove 23c extending in the circumferential direction from the tip of the main groove 23b and extending to the rear side of the cylindrical portion 20. Is done. The introduction groove 23a is formed to be shallower than the main groove 23b, and once the engaging portion 64 of the holding body 6 to be described later slides from the introduction groove 23a to the main groove 23b, The fitting portion 64 is prevented from unnecessarily coming out of the main groove 23b. When the engaging portion 64 is moved from the main groove 23b to the rear end of the sub groove 23c, the sub groove 23c can switch the initial finger force of the finger member 4 to the strongest state. Let's do it. The main groove 23b is capable of switching the initial holding force of the finger member 4 to the weakest state when the engaging portion 64 is moved from the sub groove 23c and caught by the rear end of the main groove 23b. Let's do it.

The small inner diameter 25 has a plurality of guide grooves 25a and four guide grooves 25a formed at equal intervals in the circumferential direction thereof and extending to the vicinity of the front end of the cylindrical portion 20. It has a plurality of cams 26 (four in this example) formed in the cross section between the large inner diameter 24. As shown in Fig. 6C, each of the guide grooves 25a coincides with the inner circumferential surface of the large inner diameter 24, and the ribs 31 and the latches 5 of the extruded body 3 to be described later. Is fitted with a rib 51, and the front end of the guide groove 25a abuts against the rib 31 of the extruded body 3, and serves as a restricting portion for preventing the slide toward the front of the extruded body 3. .

Each cam 26 is formed between the guide grooves 25a. When the latch 5 described later is slid to the large inner diameter 24 from the guide groove 25a by resisting the holding force, 52 is applied to the latch 5 when the latching cam portion 26a is engaged with the latch 52 and hangs against the force of the latch 5 and the latch side cam 52 is released from the locking cam portion 26a. It is comprised by the release cam part 26b which rotates and moves the latch side cam 52 to the entrance of the next guide groove 25a using the existing clamping force.

Fig. 6E is a modification of the housing 2 described above, and shows a portion corresponding to part C of Fig. 6C. In this modification, in the vicinity of the front end of the small inner diameter 25 of the cylindrical portion 20, a ring-shaped groove 25b overlapping with the front end of each guide groove 25a and deeper than the guide groove 25a is formed. The shock absorbing member 27 is attached to the ring groove 25b. The shock absorbing member 27 is, for example, a rubber or soft elastic ring, and its inner circumferential surface coincides with the small inner diameter 25 in a state where it is attached to the ring-shaped groove 25b. In this structure, the ribs 31 abut against the shock absorbing member 27 when the extruded body 3 slides to the foremost state with the ribs 31 fitted to the guide grooves 25a with respect to the housing 2. Therefore, even if the initial fingering force of the finger member 4 is strengthened, it is possible to alleviate or eliminate the fear of damage and impact sound when contacting. In addition, it is more preferable to employ such a shock absorbing member instead of the shock absorbing member 27 or together with the shock absorbing member 27 also in the front of the rib 31 itself or the rib 31.

As shown in FIG. 7, the extruded body 3 is formed of an elongated closed tube cylindrical portion 30 with the tip 33 closed, and a plurality of ribs 31 formed on the outer periphery of the rear end of the closed tube cylindrical portion 30. And the toothed portion 33 formed on the rear end surface. The closed tube cylindrical portion 30 is formed to be thinner than the small inner diameter 25 of the housing 2 and has a shape having a rounded shape for the front end 33 to strike. Each rib 31 is formed at the equal part corresponding to the guide groove 25a of the housing 2. The extruded body 3 described above is slidably assembled with the ribs 31 fitted to the corresponding guide grooves 25a with respect to the housing 2.

Fig. 7 (d) shows a modification of the extruded body 3 as described above, and has the shock absorbing member 35 mounted on the tip thereof. A stepped circumferential surface 34a and an engaging groove 34b are formed on the proximal end of the stepped circumferential surface 34a on the front end side of the extruded body 3, and the engaging recess is formed in the center of the front end surface. . On the other hand, the shock absorbing member 35 has a rubber or soft elastic cap shape, for example, and has a protrusion part 35a formed at the edge of the opening side and a protrusion 35b formed at the inner end surface. Then, the shock absorbing member 35 is engaged with the engaging groove 34b by the projection 35a with respect to the tip of the extruded body 3, and the projection 35b is engaged with the engaging recess. It is mounted in an aligned state, and is made to coincide with the outer circumferential surface of the extruded body 3 by the presence of the step circumferential surface 34a. In this structure, since the extruded body 3 is brought into contact with a moving body such as the door 11 through the shock absorbing member 35, there is a fear of damage occurring when the extruded body 3 is brought into contact even if the initial holding force of the finger member 4 is strengthened. And to mitigate or resolve the impact sound.

As shown in FIG. 8, the latch 5 includes a short cylindrical portion 50 penetrated back and forth, a plurality of ribs 51 formed on the outer circumference of the cylindrical portion 50, and a front end of each rib 51. The cam 52 formed in an integrated state and the engaging portion 54 formed at a diameter smaller than this inner diameter 53 on the front end side of the inner diameter 53 are included. Each rib 51 is formed in the equal part corresponding to the guide groove 25a of the housing 2. As shown in FIG. Each cam 52 connects the front end of the rib 51 and the end surface of the locking part 54, and the end surface is formed in the state which inclined to the clockwise direction in the width direction. The latch 5 described above is slidably assembled in a state where the ribs 51 are fitted to the corresponding guide grooves 25a after the extruded body 3 is disposed with respect to the housing 2.

As shown in Fig. 9, the holding body 6 includes a closed tube cylindrical portion 60 having a rear end side closed, a handle portion 61 formed on a rear end surface 62 of the closed tube cylindrical portion 60, and a closed tube. The inside of the cylindrical part 60 has the boss part 63 which protrudes in the bottom surface, and the pair of engaging part 64 which protrudes in the location which entered inwardly from the front end side. The closed tube cylindrical portion 60 is capable of inserting the rear end side of the housing 2 therein. The boss portion 63 has a center hole 63a formed at the center of the shaft, and supports the shaft 7 in a state where the rear end side of the shaft 7 is press-fitted and fixed to the center hole 63a. On the outer circumference of the shaft 7, a finger member 4 is disposed. A rear end of the coil spring, which is the finger member 4, is fixed to a cross section of the boss part 63. Therefore, a plurality of coil spring engaging ribs are formed in the cross section of the boss portion 63. The engaging portion 64 is a projection that is slidably fitted into the housing side adjustment groove 23. Further, reference numeral 60a denotes a cutout portion formed at the tip of the closed tube cylindrical portion 60, and reference numeral 62a denotes a die-out hole formed to penetrate the rear end surface 62. As shown in FIG.

The above-mentioned holding body 6 is connected so that the front-back position can be changed and operated in the back side of the housing 2 through the engaging part 64 and the adjustment groove 23. As shown in FIG.

Next, an example in which the holder 6 is connected to the housing 2 so as to be changed in operation will be described. First, the shaft 7 is supported by the center hole 63a of the holder 6, and the shaft The coil spring, which is the support member 4, is supported by (7). Then, while the shaft 7 and the support member 4 are inserted into the housing 2, the holder 6 and the housing 2 are approached, and each engaging portion 64 has a corresponding adjustment groove side introduction groove ( Position it so that it matches the inlet of 23a). Then, the holding body 6 is pushed into the housing 2 side against the holding force of the holding member 4 to slide the engaging portion 64 forward along the corresponding introduction groove 23a. Then, the engagement portion 64 is slid from the introduction groove 23a to the main groove 23b by rotating the holder 6 in the clockwise direction, and then the pressure input is released in this state. In this way, the holding body 6 is moved to the rear side by the holding force of the holding member 4 until the engaging portion 64 is caught against the rear end of the main groove 23b with respect to the housing 2. By being slid, the initial fingering force of the finger member 4 is connected in a state of minimum. In addition, the shaft 7 is integrally moved with the holder 6 while being supported by the holder 6. Since the shaft 7 is a member for maintaining a stable stop action of the stop member 4, it can be omitted.

[work]

3 schematically illustrates the extrusion operation of the assist device 1 described above. In Fig. 3, the assist device 1 is attached to the corresponding portion of the housing 10 such as the storage cabinet through the housing side attachment portion 22, and the door 11 is applied to the holding force in the open direction from the closed position. It is the use example in the case of moving by.

(1) First, FIG. 3 (a) shows a state in which the extruded body 3 protrudes to the maximum position by the holding force of the holding member 4. In this protruding state, the extruded body 3 is prevented from coming off because the rib 31 abuts against the front end of the guide groove 25a. The latch 5 abuts against the extruded body 3 by sliding the rib 51 toward the front side by the holding force of the holding member 4 along the guide groove 25a. Here, the holding member 4 expresses an initial holding force between the end face of the holding portion side boss portion 63 and the latching side locking portion 54. In this structure, the fluctuation between the housing 2 and the holder 6 and the fluctuation between the extruded body 3 and the latch 5 are absorbed by the initial gripping force, and are held against the housing 2. The sieve 6, the latch 5, and the extruded body 3 are integrally assembled as a unit.

(2) Moreover, FIG.3 (a) shows that the door 11 is moved in the arrow direction (namely, from the open position to the closing direction), and is connected to the front-end | tip 33 of the extruded body 3 of the assist apparatus 1 (2). The state just before contacting is shown. In this assisting apparatus 1, the fingering member 4 accumulates the finger force in the process of moving the door 11 in the closing direction of Figs. 3 (b) and 3 (c) in the state of Fig. 3 (a). To increase. That is, the finger member 4 accumulates the finger force by reducing the displacement until the latch 5 is shifted from the guide groove 25a to the large inner diameter 24 side through the extruded body 3. As shown in Fig. 3 (c), the door 11 is brought into contact with the housing 10 side, and when the pressure is released, the latch 5 and the extruded body slid by the holding force of the finger member 4 are released. 3) through a small amount N (in this example, N in Fig. 3 (b) is moved in the opening direction by about 1.5 to 2.5 mm), and the state is separated by the N dimension with respect to the housing 10. It becomes the closed position of 3 (b).

(3) In other words, in the latch mechanism of the present invention, when the door 11 releases the pressing force against the door 11 in the state shown in Fig. 3 (c), the latch 5 passes through the extruded body 3. After passing through the small inner diameter 25 and entering the large inner diameter 24, the holding force of the finger member 4 slides again to the small inner diameter 25 side, that is, the protruding direction. At this time, the latch 5 in the protruding direction is accompanied by the rotation of a very small angle corresponding to the tooth shape of the tooth portion 32 by the cam action of the latch side cam 52 with respect to the extruded side tooth portion 32. When the extruded body 3 moves toward the smaller inner diameter 25 side, the cam 52 abuts against the housing-side locking cam portion 26a as shown in the enlarged view of FIG. The position is regulated by engaging the deepest corner portion of the locking cam portion 26a, whereby the holding force accumulated in the holding member 4 is maintained.

(4) When the door 11 is switched back to the open direction from the closed position in Fig. 3B, for example, when there is a locking means provided between the door 11 and the housing 10, After releasing the lock (immediately when there is no lock means), the door 11 is pressed again in the arrow direction (i.e., the closing direction) in Fig. 3C to release the pressing force. Then, the latch mechanism is pressed back toward the larger inner diameter 24 side through the extruded body 3, and then the inner side of the smaller inner diameter 25 side (i.e., the protruding direction) is held by the holding force of the holding member 4. To slide). At this time, the latch 5 in the protruding direction is accompanied by the rotation of a very small angle corresponding to the tooth shape of the tooth portion 32 by the cam action of the latch side cam 52 with respect to the extruded side tooth portion 32. When the extruded body 3 moves toward the smaller inner diameter 25 side, the latch side cam 52 abuts against the release cam portion 26b and is guided along the release cam portion 26b. It enters 25a, slides along this guide groove 25a, and switches the extruded body 3 to the protrusion position of FIG. 3 (a). The door 11 is pressed by the extruded body 3 to move in the opening direction.

(5) FIG. 4 schematically shows the operation of the adjustment means of the present invention by changing the initial gripping force of the gripping member 4 constituting the assist device 1. In this adjusting means, as shown in Fig. 4B, the holding body 6 is pressed against the holding force of the holding member 4 and pressed against the housing 2 side. Then, each engaging portion 64 slides forward from the rear end of the corresponding main groove 23b. Subsequently, the retainer 6 is rotated in the clockwise direction to slide the engaging portions 64 from the tip of the main groove 23b to the sub groove 23c, thereby releasing the pressing force. Then, the holding body 6 is slid to the rear side by the holding force of the holding member 4 until the engaging portion 64 is engaged with the rear end of the sub groove 23c with respect to the housing 2. By doing in this way, the initial finger force of the finger member 4 can be changed to the maximum.

Second Embodiment

10 and 11 show a configuration in which the adjustment means formed on the holder and the housing are modified. In this description, the same members and parts as in the above-described embodiment are given the same reference numerals, and the description thereof is omitted.

The housing 2A of 2nd Embodiment has the large diameter part formed in the slightly larger diameter at the rear end side, and the adjustment groove 28 formed in this large diameter part instead of the adjustment groove 23 mentioned above. The adjusting groove 28 is a through groove, and is formed in a circumferential direction different from each other at approximately the middle and the tip of the linear main groove 28a extending in the longitudinal direction of the cylindrical portion 20 and the main groove 28a. It consists of a sub groove 28b and a sub groove 28c.

On the other hand, as shown in FIG. 11, the holding body 6A has a shaft portion 65 slidably inserted into the cylinder of the housing 2A and an insertion restricting flange portion having a large diameter at the rear end of the shaft portion 65. As shown in FIG. 66a and the handle part 66 which protruded on the outer surface of the flange part 66a. The shaft portion 65 includes a convex engagement portion 65a formed at its outer circumference, a spring arrangement cavity 65b formed from the front end to the rear side, and an engagement hole portion formed further inside the cavity 65b. 65c is formed. In the above holder 6A, the engagement hole 65c is located at the center of the shaft and supports the shaft 7 in a state where the rear end side of the shaft 7 is press-fitted and fixed. The stop member 4 is disposed in the cavity 65b through the shaft 7. The rear end of the coil spring, which is the above-mentioned stopper member 4, is caught and fixed to the stepped end face between the engagement hole 65c and the cavity 65b. The engaging portion 65a is a projection that is slidably fitted into the housing side adjustment groove 28. In addition, the engagement part 65a may be comprised by the pin and screw which are later attached to the shaft part 65. FIG.

FIG. 10 schematically shows the operation of the adjustment means of the present invention, in which the initial holding force of the holding member 4 constituting the assist device 1A is changed. In addition, in FIG. 11, the case where the assist apparatus 1A is attached to the corresponding part of the housing | casing 10, such as a storage container, is supposed to weaken extrusion force, for example after long-term use. However, the initial holding force may be changed when the assist apparatus 1A is manufactured, when it is commercially available, and when it is attached to a door or an enclosure. The change operation is carried out not only in the retracted state in which the extruded body 3 has retreated (the state in which the holding member 4 accumulated the holding force) as in the present embodiment, but also in the projecting state (the holding force of the accumulated holding member 4). In the discharged state}. These are the same also in 1st Embodiment and 3rd Embodiment.

(5-1) In this adjusting means, the engaging portion 65a is fitted to the front sub groove 28c as shown in Fig. 10A to maximize the initial holding force of the holding member 4. In a state where the engaging portion 65a is fitted to the rear end of the main groove 28a as shown in Fig. 10 (c), the initial holding force is minimized, and the engaging portion 65a is shown. As shown in 10 (b), it is possible to select a state in which the initial fingering force is made halfway between the maximum and the minimum by fitting to the rear sub groove 28b.

For example, the changing operation is explained in the example of switching from the state of FIG. 11A to the minimum state of FIG. 11B, by first holding the holding body 6A against the holding force of the finger member 4. While rotating in the circumferential direction toward the main groove 28a in the sub groove 28b, the engaging portion 65a releases the rotational force in the state entered into the main groove 28a in the sub groove 28b. Then, the holding body 6A is held in contact with the rear end of the main groove 28a by the engaging portion 65a with respect to the housing 2A as shown in Figs. 10 (c) and 11 (b). It slides to the rear side by the holding force of the holding member 4. As a result, the finger member 4 is changed to the state in which the initial finger force is the weakest.

[Third Embodiment]

12 and 13 show a configuration in which the adjustment means formed on the holder and the housing are modified. Also in this description, the same code | symbol is attached | subjected about the same member and site | part as above-mentioned embodiment, and the description is abbreviate | omitted.

The housing 2B of 3rd Embodiment has the large diameter part formed in the slightly larger diameter at the rear end side, and the nut 8 attached to the inner periphery of this large diameter part. The nut 8 is provided with a plurality of protrusions 8a on the outer circumference together with the female screw portion of the inner diameter. This nut 8 is fixed by engaging the projection 8a with the engaging hole 29 formed in the large diameter part with respect to the housing 1B.

On the other hand, as shown in FIG. 12, the holding body 6B has the male screw part 67 screwed to the nut 8 attached to the housing 2B, and the rear end of the male screw part 67 having a large diameter. The insertion restricting flange portion 68a and the handle portion 68 protruding from the outer surface of the flange portion 68a are provided. The male screw part 67 forms the spring arrangement cavity part 67a formed toward the back side from the front-end | tip, and the engaging hole part 67b formed in the inner side of the cavity part 67a. In the above holder 6B, the engagement hole 67b is located at the center of the shaft, and supports the shaft 7 in a state where the rear end side of the shaft 7 is press-fitted and fixed. The stop member 4 is disposed through the shaft 7 in the cavity 67a. The rear end of the coil spring, which is the above-mentioned stopper member 4, is caught and fixed to the stepped end face between the engagement hole 67b and the cavity 67a.

(5-2) FIG. 12 schematically illustrates the operation of the adjustment means of the present invention by changing the initial holding force of the holding member 4 constituting the assist device 1B. In this adjusting means, the initial holding force of the holding member 4 can be changed to any value or steplessly within the predetermined range with respect to the first embodiment and the second embodiment. In other words, this changing operation will be described, for example, in the state in which the initial holding force in the state in which the initial holding force in Figs. 12 (a) and 13 (a) is maximized is weakened. It rotates so that it may protrude to the rear side by screw feed of the male screw part 67 with respect to the female screw part of the nut 8 against the holding force of the finger member 4. As a result, the initial holding force of the holding member 4 can be weakened in proportion to the amount of protrusion of the holding body 6B, as shown in Fig. 11B.

As described above, the assist device of the present invention can be modified in various ways except for the requirements specified in the claims, and its use is also arbitrary.

(A), (b) is a left sectional view and a top view which show the assist apparatus of 1st Embodiment

(A), (b) is a left sectional view and a top view showing the assist device in a state in which the holding force (initial holding force) is weakened.

In Fig. 3, (a) is a state in which the assist device begins to accumulate the force of the moving body with movement in the direction of the arrow of the moving body, and (b) the assist device accumulates the force of force to the maximum. (C) is a half cross-sectional view, respectively showing the assisting device in a state in which the assisting device releases the maintenance of the accumulated force.

In FIG. 4, (a) is a schematic external view of the said assist apparatus, (b)-(d) is a principal part schematic diagram which shows the operation method at the time of changing the holding force (initial holding force) of the said assist apparatus.

5 is a schematic exploded view of the assist device exploded;

Fig. 6 shows a housing constituting the assist device, (a) is a top view, (b) is a left sectional view, (c) is an enlarged cross-sectional view taken along line BB of (b), and (d) is AA of (a). Line enlarged sectional drawing, (e) is the principal part enlarged view which shows the modification which modified the C part of (c).

Fig. 7 shows an extruded body constituting the assist device, (a) is a left sectional view, (b) is a top view, (c) is an enlarged sectional view taken along line EE of (b), and (d) is a Enlarged sectional view which shows a modification in the state as (c)

Fig. 8 shows a latch constituting the assist device, (a) is a left sectional view, (b) is a top view, (c) is a right sectional view, and (d) is an enlarged sectional view taken along the line F-F in (a).

Fig. 9 shows a retainer constituting the assist device, (a) is a left sectional view, (b) is a top view, (c) is a right sectional view, and (d) is an enlarged sectional view taken along the line D-D in (c).

Fig. 10 shows an assist device according to the second embodiment, in which (a) is a state in which the finger strength is at maximum strength, (b) is a state in which the finger strength is in medium strength; Schematic appearance figure to show in state each

Fig. 11 is a use example of the assist device of Fig. 10, wherein (a) is a sectional view shown in the state of Fig. 10 (b), and (b) is a sectional view shown in the state of Fig. 10 (c).

Fig. 12 shows an assist device according to the third embodiment, in which (a) is a schematic external view each showing a finger force at a maximum strength, and (b) a finger force less than (a).

Fig. 13 is a use example of the assist device of Fig. 12, wherein (a) is a sectional view shown in the state of Fig. 12 (a), and (b) is a sectional view shown in the state of Fig. 12 (b).

Explanation of symbols on the main parts of the drawings

1,1A, 1B-Assist device 2,2A, 2B-Housing (cylindrical body)

20-Cylindrical 24-Large Bore

25-small bore 3-extruded body

30-closed cylinder 31-rib

32-Teeth 33-Tip

4-Gripping member 5-Latch

50-Cylindrical 51-Rib

52-Cam 6,6A, 6B-Retainer (Adjustment means)

60-closed cylinder 61-handle

63-Boss 7-Shaft

8-nut 8a-stone

23-Adjustment groove 23a-Introduction groove

23b-main groove 23c-subhome

25a-Guide groove 26-Cam (latch mechanism)

26a-locking cam section 26b-releasing cam section

27-shock absorbing member 28-adjusting groove (adjusting means)

28a-main groove 28b, 28c-sub groove

29-locking hole 35-shock absorbing member

64,65a-fitting parts

Claims (10)

In the assist device for moving the movable body between the first position and the second position of the stationary body, the assisting device is provided on either one of the movable body and the stationary body to assist the movement of the movable body by a force of force. In the process of moving the movable body to the first position or the second position, the extruding grip force in the second position or the first position direction is accumulated and the accumulated grip force is maintained, and the movable body is again moved in the same direction. And an adjusting means for changing the holding force, together with a latch mechanism for releasing the holding of the holding force by movement. The method according to claim 1, And said adjusting means selectively changes said holding force by a plurality of predetermined strong and weak setting parts. The method according to claim 1, And said adjusting means changes said holding force within a predetermined range at an arbitrary value or steplessly. The method according to claim 1, The assist device includes a tubular body; An extruded body slidably disposed in the main body, the extruded body being retracted into the main body and converted into a protruding state protruding from the main body; A support member holding the extruded body in a direction protruding from one end of the main body; A latch interposed between the stop member and the extruded body; Consists of a holding body for supporting one end of the stop member, The latch mechanism is formed in the main body and the latch is capable of switching the extruded body into the retracted state and the projecting state by using the holding force of the holding member, The adjusting means may include a main groove extending in a direction of a movement of the extruded body and a sub groove extending in a different direction from a part of the main groove, the main body and the holding body being formed on any one of the main body and the holding body. It is formed on the other side and has a fitting portion that is fitted to the main groove and the sub groove, the fitting portion of the engaging portion with respect to the main groove and the sub groove through the relative slide and rotation operation of the main body and the retainer. An assisting device for a moving object, characterized in that for changing. The method according to claim 2, The assist device includes a tubular body; An extruded body slidably disposed in the main body, the extruder being converted into a retracted state and a protruding state protruding from the main body; A support member holding the extruded body in a direction protruding from one end of the main body; A latch interposed between the stop member and the extruded body; Consists of a holding body for supporting one end of the stop member, The latch mechanism is formed in the main body and the latch is capable of switching the extruded body into the retracted state and the projecting state by using the holding force of the holding member, The adjusting means may include a main groove extending in a direction of a movement of the extruded body and a sub groove extending in a different direction from a part of the main groove, the main body and the holding body being formed on any one of the main body and the holding body. It is formed on the other side and has a fitting portion that is fitted to the main groove and the sub groove, the fitting portion of the engaging portion with respect to the main groove and the sub groove through the relative slide and rotation operation of the main body and the retainer. An assisting device for a moving object, characterized in that for changing. The method according to claim 1, The assist device includes a tubular body; An extruded body slidably disposed in the main body, the extruded body being retracted into the main body and converted into a protruding state protruding from the main body; A support member holding the extruded body in a direction protruding from one end of the main body; A latch interposed between the stop member and the extruded body; Consists of a holding body for supporting one end of the stop member, The latch mechanism is formed in the main body and the latch is capable of switching the extruded body into the retracted state and the projecting state by using the holding force of the holding member, The adjusting means includes a male screw portion formed in one of the main body and the holding body and extending in a moving direction of the extruded body, and a female screw formed in the other of the main body and the holding body and screwed to the male screw part. And a connecting portion of the holder to the main body by a relative rotational operation of the main body and the retainer in the screwed state of the male screw part and the female screw part. The method according to claim 3, The assist device includes a tubular body; An extruded body slidably disposed in the main body, the extruded body being retracted into the main body and converted into a protruding state protruding from the main body; A support member holding the extruded body in a direction protruding from one end of the main body; A latch interposed between the stop member and the extruded body; Consists of a holding body for supporting one end of the stop member, The latch mechanism is formed in the main body and the latch is capable of switching the extruded body into the retracted state and the projecting state by using the holding force of the holding member, The adjusting means includes a male screw portion formed in one of the main body and the holding body and extending in a moving direction of the extruded body, and a female screw formed in the other of the main body and the holding body and screwed to the male screw part. And a connecting portion of the holder to the main body by a relative rotational operation of the main body and the retainer in the screwed state of the male screw part and the female screw part. The method according to any one of claims 1 to 7, And said extruded body has a shock absorbing member installed on a tip end side thereof. The method according to any one of claims 4 to 7, The extruded body is prevented from falling out by being brought into contact with the restricting portion formed in the extruded body and the restricting portion formed in the main body, and maintained in the protruding state, and has an impact absorbing member installed in at least one of the restricting portions. An assisting device for a mobile body, characterized in that. The method according to claim 8, The extruded body is prevented from falling out by being brought into contact with the restricting portion formed on the extruded body and the restricting portion formed on the main body, and maintained in the protruding state. An assisting device for a mobile body, characterized in that.

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