JP4947629B2 - Wallpaper gluing machine - Google Patents

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wallpaper gluing machine, and in particular, includes a frame that supports a gluing machine main body, and legs that are attached to the four corners of the frame and have legs that are pivotally supported so that the legs can be opened and closed in the longitudinal direction of the frame. The present invention relates to a technique for configuring a wallpaper pasting machine including legs so that the opening and closing operation of the legs is easy and the legs can be reliably locked in the open leg state and the closed leg state, respectively.

  As shown in the side view of FIG. 13, the wallpaper pasting machine includes a paste box, a pasting machine main body A including a group of rollers for performing pasting and paper feeding, and leg portions B. And the leg part B is comprised by the frame 1 which supports the gluing machine main body A, and the leg 2 of the four corners of the frame, and usually the leg 2 so as not to be bulky when the wallpaper gluing machine is transported by a car or the like. Is foldable. In this case, as a method of fixing the leg 2 in the open leg state when using the leg 2, a method of fixing with a knob bolt or a snap lock is conventionally known. However, the conventional fixing method has problems such as stability but work is troublesome, and conversely, the work is easy but lacks stability.

  Therefore, for example, there is provided a lock member that comes into contact with the side surface of the leg on the base side from the pivot fulcrum of the leg when in the open leg state and is biased by the biasing means to lock the leg in the open leg state. It has been proposed (see, for example, Patent Document 1).

Further, in such a structure in which the lock member abuts on the root side from the rotation fulcrum of the leg, an extension part for abutting the lock member on the upper side (base side) from the rotation fulcrum of the leg is provided. Since the part protrudes outward from the rotation fulcrum with the legs closed, the width of the gluing machine becomes larger by that amount (if the distance between the legs is constant). The upper end of the leg is pivotally supported on the supporting member, a locking projection is provided below the pivoting fulcrum of the leg, and a locking means for engaging the locking projection of the leg is attached to the supporting member. Thus, there has been proposed an apparatus that is easy to work, stable, and capable of shortening the outer dimensions of the gluing machine, particularly the dimension in the width direction (see, for example, Patent Document 2).
JP-A-9-299845 JP 2001-170531 A

  However, the conventional wallpaper pasting machine has a lock that abuts against the side of the leg on the base side from the pivoting fulcrum of the leg when in the open leg state, and is biased by the biasing means to lock the leg in the open leg state. In the case where the member is provided, as described above, there is a problem that an extension part is necessary on the base side from the pivoting fulcrum of the leg, and that part protrudes outside in the closed leg state. In addition, since the base side is locked, there is a problem that the stress is increased when an external force is applied from the side, and the locked state is not stable.

  In addition, the upper end of the leg is pivotally supported on a support member provided on the frame, a locking projection is provided below the pivot support point of the leg, and the locking projection is engaged with the support member. In the case where the locking means is attached, as described above, the work is easy and stable, and the size in the width direction of the gluing machine does not increase when the legs are opened and closed. Issues that should remain.

  That is, there are various means for fixing the legs of the wallpaper pasting machine in the open leg state as described above, but all of them are dedicated when the legs are opened, and when the legs are folded and carried by a car etc. In order to stabilize, it is necessary to provide a means for fixing the leg in a closed state. However, if a fixing means for closing the leg is provided separately, it is necessary to operate the fixing means for opening the leg in the fixing direction after opening the leg by releasing the fixing means for closing the leg when opening the leg. When closing the legs, after releasing the fixing means for opening the legs and closing the legs, it is necessary to operate the fixing means for the closing legs in the fixing direction, and the work of loading and unloading when carrying in a car etc. is complicated .

  The present invention has been conceived in order to solve such a problem, and provides a wallpaper pasting machine that can easily open and close legs and can securely lock the legs in the open leg state and the closed leg state. For the purpose.

  The wallpaper pasting machine of the present invention has a leg portion comprising a frame that supports the pasting machine main body and a leg that is attached to the four corners of the frame and has legs that are pivotally supported at the upper end portion so that the legs can be opened and closed in the longitudinal direction of the frame. In the wallpaper pasting machine provided, a locking projection provided at a position separated from the upper end pivot support position of the leg by a predetermined dimension toward the lower end side, and the leg of the leg when the leg is in an open leg state A first lock lever having a first notch engageable with a locking projection and an elongated hole or pin at the tip, and rotatable about a first fulcrum fixed to the frame; and the leg When the leg is in a closed leg state, it has a second notch engageable with the locking projection of the leg and a pin or elongated hole at the tip, and rotates around a second fulcrum fixed to the frame side. A lock mechanism comprising a movable second lock lever, and the first lock lever The front end portion and the front end portion of the second lock lever are connected by the engagement of the elongated hole and the pin, and the first lock lever and the second lock lever are interlocked and rotated in opposite directions, and the leg When the leg is opened, the first notch of the first lock lever engages with the locking projection of the leg to lock the leg in an open state, and when the leg is closed, A second notch of the second lock lever is configured to engage with the locking projection of the leg to lock the leg in a closed state.

This wallpaper pasting machine is used with the legs open, and folds (closes) the legs so as not to be bulky during transportation or the like, and the legs are rotatable around a fulcrum at the upper end. The locking and unlocking operations when the legs are opened and closed are performed by rotating one of the lock levers, for example, the first lock lever. In this case, in the open leg state, the first lock lever is moved in one direction. The leg is locked in an open state by rotating in the locking direction and engaging the first notch with the locking protrusion of the leg. When closing the leg, when the first lock lever is rotated in the opposite direction (release direction), the first notch is released from the locking projection of the leg, and the lock is released. When the first lock lever is rotated in the locking direction with the legs completely closed, the second lock lever is rotated in conjunction with the second notch. Engages with the locking protrusion of the leg, and the leg is locked in the closed state. When opening the legs, if the first lock lever is rotated in the release direction, the second lock lever is rotated in conjunction with it, and the second notch is disengaged from the latching protrusion of the leg to release the lock. In this state, the leg is rotated to open, and the first notch is engaged with the locking protrusion of the leg when the first lock lever is rotated in the locking direction with the leg fully open. the leg is locked in the open-leg state to. In this way, the leg can be reliably locked in the open leg state and the closed leg state, respectively, and the leg can be locked or unlocked by rotating one lock lever. Therefore, for example, the opening and closing operation of the legs at the time of loading and unloading when the wallpaper pasting machine is carried by a car or the like becomes easy. In this wallpaper pasting machine, the lock lever for fixing the leg in the open leg state and the closed leg state is constituted by two interlocking lock levers, so that the first notch and the second notch are opened. It can be configured to engage with the locking projection at a substantially right angle when the leg is closed and when the leg is closed, so that the lock can be further ensured.

  Further, the wallpaper pasting machine of the present invention is a leg comprising a frame for supporting the pasting machine body and a leg that is attached to the four corners of the frame and whose legs are pivotally supported so that the legs can be opened and closed in the longitudinal direction of the frame. And a locking projection provided at a position away from the upper end pivot support position of the leg toward the lower end by a predetermined dimension, and the leg when the leg is in an open leg state. A first notch engageable with the locking protrusion and a second notch engageable with the locking protrusion of the leg when the leg is in a closed leg state, the frame side And a lock lever that can be rotated around a fulcrum fixed to the fulcrum. When the leg is opened, the first notch is rotated to a position where it engages with the locking projection of the leg. Thus, the leg is locked in an open state, and when the leg is closed, the second notch is formed on the leg. It may be configured to lock the leg in 閉脚 state by rotating to the position of projection and engaging stop.

This wallpaper pasting machine is used with the legs open, and folds (closes) the legs so as not to be bulky during transportation or the like, and the legs are rotatable around a fulcrum at the upper end. In the open leg state, the leg is locked in the open leg state by rotating the lock lever in one direction (locking direction) and engaging the first notch with the locking projection of the leg. When closing the leg, if the lock lever is rotated in the opposite direction (release direction), the first notch is released from the locking projection of the leg, and the lock is released. When the lock lever is rotated in the locking direction with the leg completely closed, the second notch engages with the locking protrusion of the leg and the leg is closed. It is locked with. When opening the leg, if the lock lever is turned in the release direction, the second notch is released from the locking projection of the leg and the lock is released. In this state, the leg is turned and opened. , rotates the lock lever in the locking direction in a state in which the leg is completely opened, the locking projections engaging with legs of the first cutout leg is locked in the open-leg state. In this way, the leg can be reliably locked in the open leg state and the closed leg state, respectively, and the leg can be locked or unlocked by rotating one lock lever. Therefore, for example, the opening and closing operation of the legs at the time of loading and unloading when the wallpaper pasting machine is carried by a car or the like becomes easy. This wallpaper pasting machine has one lock lever for fixing the legs in the open leg state and the closed leg state, and the number of parts of the lock mechanism can be reduced.

  Further, the wallpaper pasting machine of the present invention is provided with a biasing means for biasing the legs in the closed leg direction so that, for example, when the leg is unlocked and the wallpaper pasting machine is lowered from the car, It is possible to prevent unintentional opening and prevent troubles in work.

  In the wallpaper pasting machine of the present invention, the lock lever for fixing the leg in the open leg state and the closed leg state can be constituted by two interlocking lock levers, and by doing so, the first notch and the first notch The two notches can be configured to engage with the locking projections substantially at right angles when the legs are opened and closed, and the lock can be made more secure.

  Further, the wallpaper pasting machine of the present invention can securely lock the legs in the open leg state and the closed leg state, respectively, and can lock or unlock the legs by rotating one lock lever. For example, it is easy to open and close the legs when loading and unloading the wallpaper pasting machine with a car or the like.

  Further, the wallpaper pasting machine of the present invention is provided with a biasing means for biasing the legs in the closed leg direction so that, for example, when the leg is unlocked and the wallpaper pasting machine is lowered from the car, It can be configured so that it can be prevented from suddenly opening, and work is not hindered.

(First embodiment)
1 and 2 show a first embodiment of the present invention. FIG. 1 is a cross-sectional view (a) showing a vertical cross section perpendicular to the longitudinal direction of the leg portion showing the configuration of the leg locking mechanism of the wallpaper pasting machine, and a cross-sectional view (b) showing a vertical cross section along the longitudinal direction of the leg portion. FIG. 2 is an explanatory diagram (a) to (f) showing the opening / closing operation of the legs of the wallpaper pasting machine.

  The wallpaper pasting machine according to this embodiment includes a paste box, a pasting machine main body provided with a group of rollers for performing pasting and paper feeding, and leg portions. As shown in FIG. 13, the pasting machine main body has a conventionally well-known configuration. Further, the leg portion is composed of a frame 1 that supports the gluing machine main body and legs 2 at the four corners of the frame, and the legs are foldable.

  The leg 2 of the leg is pivotally supported by a support shaft 4 fixed to a support member 3 attached in an arrangement in which the upper ends are vertically perpendicular to the four corners of the frame 1, and the longitudinal direction of the frame 1 ( The legs can be opened and closed freely in the front-rear direction of FIG. 1A and the left-right direction of FIG.

  Each leg 2 has a front and rear direction of the frame 1 (left and right in FIG. 1A) at a position away from the position (fulcrum position) pivotally supported by the support shaft 4 at the upper end portion toward the lower end portion. The locking projection 5 is provided so as to protrude inward in the direction, the front-rear direction in FIG. In the illustrated example, the locking protrusion 5 is welded and fixed to the inner side surface of the leg 2 in the longitudinal direction of the frame 1, but is not limited thereto.

  The leg portion of the wallpaper pasting machine locks the leg 2 in the open leg state and the closed leg state, and releases the lock to enable the opening and closing operation. 1 has a first notch 6 that can be engaged with the two locking projections 5, can rotate around a first fulcrum pin (first fulcrum) 7 fixed to the frame 1, and opens the leg 2. When the first notch 6 is rotated to a position where the first notch 6 engages with the locking protrusion 5 of the leg 2, the first lock lever 8 that locks the leg 2 in the open leg state, and the leg 2 in the closed leg state. There is a second notch 9 that can be engaged with the locking protrusion 5 of the leg 2 at a certain time, and it can rotate around a second fulcrum pin (second fulcrum) 10 fixed to the frame 1. When the leg 2 is closed, the second notch 9 is rotated to a position where the second notch 9 engages with the locking projection 5 of the leg 2 to lock the leg 2 in the closed state. It is provided with a 11.

  The first lock lever 8 and the second lock lever 11 are connected by engaging the elongated hole 12 at the distal end portion of the first lock lever 8 and the pin 13 at the distal end portion of the second lock lever 11 to rotate. 1B, both ends of the handle bar 14 are fixed to the first lock levers 8 of the pair of front and rear legs 2, and the first lock lever 8 is rotated by operating the handle bar 14. In addition, a lock mechanism configured to rotate the second lock lever 11 in conjunction with the second lock lever 11 is provided.

  A spring member 7a is attached to the first fulcrum pin 7 as shown in FIG. 1 (a), and one end of the spring member 7a is hooked on the first lock lever 8, so that the first lock lever 8 is rotated in the locking direction. Energized.

  As shown in FIG. 2, this wallpaper pasting machine rotates the first lock lever 8 in the locking direction (clockwise in FIG. 2A) by the biasing force of the spring member 7a in the open leg state, By engaging the first notch 6 with the locking projection 5 of the leg 2, the leg 2 is locked in the open leg state (see FIG. 2A). At that time, as shown in FIG. 2A, the locking projection 5 contacts and engages the first notch 6 at a substantially right angle.

  When the leg is closed, the first notch 6 is engaged with the leg 2 by operating the handle bar 14 and rotating the first lock lever 8 in the releasing direction (counterclockwise in FIG. 2B). The lock 2 is released from the stop projection 5 and the lock is released. In this state, the leg 2 can be closed by rotating it around the support shaft 4 (fulcrum of the upper end) by hand (FIG. 2B). (See (c) and (d)).

  When the leg 2 is completely closed, the second notch 9 of the second lock lever 11 can be engaged with the locking projection 5 of the leg 2 (see FIG. 2 (e)).

  In this state, since the urging force is always acting clockwise on the first lock lever 8 by the spring member 7a, the first lock lever 8 rotates in the locking direction (clockwise in FIG. 2 (f)). The second lock lever 11 is interlocked and rotated counterclockwise around the second fulcrum pin 10, and the second notch 9 engages with the locking projection 5 of the leg 2, The leg 2 is locked in the closed state (see FIG. 2F). At that time, as shown in FIG. 2 (f), the locking projection 5 contacts and engages with the second notch 9 at a substantially right angle.

  When the leg is opened, the second lock lever 11 is interlocked by operating the handle bar 14 and rotating the first lock lever 8 in the release direction (counterclockwise in FIG. 2 (e)). The second notch 9 is released from the locking projection 5 of the leg 2 and the lock is released (see FIG. 2D). In this state, the leg 2 can be rotated and opened (see FIGS. 2D, 2C, and 2B).

  Then, with the leg 2 fully open, the first lock lever 8 is rotated in the locking direction (clockwise direction in FIG. 2A) by the spring member 7a, and the first notch 6 is attached to the leg 2. The leg 2 is locked in the open state by engaging with the locking projection 5 (see FIG. 2A).

  3 and 4 show a modification of the first embodiment of the present invention. FIG. 3 is a cross-sectional view (a) showing a vertical cross section perpendicular to the longitudinal direction of the leg portion showing the configuration of the leg locking mechanism of the wallpaper pasting machine, and a cross-sectional view (b) showing a vertical cross section along the longitudinal direction of the leg portion. FIG. 4 is an explanatory view (a) to (f) showing the opening / closing operation of the legs of the wallpaper pasting machine.

  In this modification, the wallpaper pasting machine of the first embodiment is provided with a spring 15 (biasing means) for biasing the leg 2 in the closing leg direction. One end of the spring 15 is hooked on a pin 16 provided on the frame 1 side, and the other end is hooked on a pin 17 provided on the tip side of the locking protrusion 5 of the leg 2. Alternatively, the locking projection 5 may be extended to also serve as the pin 17.

  The opening / closing operation of the legs of this wallpaper pasting machine is as shown in FIG. 4 and is basically the same as that of the first embodiment described with reference to FIG. By providing the spring 15 for biasing, for example, when the leg 2 in the closed state is unlocked and the wallpaper pasting machine is lowered from the car, the leg 2 is prevented from opening suddenly with its own weight. Can be configured so as not to cause any trouble.

  In this case, the handle bar 14 is operated from the state in which the second notch 9 is engaged with the locking projection 5 of the leg 2 and the leg 2 is locked in the closed state (see FIG. 4A). When the first lock lever 8 is rotated in the releasing direction (counterclockwise direction in FIG. 4B), the second lock lever 11 is rotated in conjunction with the second notch 9 to lock the leg 2. It is released from the projection 5 and unlocked (see FIG. 4C). In this state, the leg 2 can be rotated and opened (FIGS. 4C, 4D, and 4E). In this case, even if the leg 2 tries to open vigorously with its own weight, the leg 2 is urged to the closing side by the spring 15 and the urging force increases as the spring 15 extends, so the leg 2 opens. As the speed increases, the opening speed decreases.

  Finally, the leg 2 is opened against the urging force of the spring 15, and the first lock lever 8 is locked in the locking direction (FIG. 2 (a) by the urging force of the spring member 7a in the fully opened state. ) In the clockwise direction), the first notch 6 engages with the locking projection 5 of the leg 2 and the leg 2 is locked in the open leg state (see FIG. 4F). Further, in the above embodiment, a pin may be provided on the first lock lever 8 side and a long hole may be formed on the second lock lever 11 side.

  Further, when the legs are closed, the reverse operation is performed. At that time, the urging force of the spring 15 acts in the direction of the closed legs, so that the force for closing the legs 2 by hand is small.

(Second Embodiment)
In the first embodiment described above, the lock mechanism including the first lock lever 8 and the second lock lever 11 is provided for each of the four legs 2 in order to lock the wallpaper pasting machine in the open leg state or the closed leg state. There are 4 sets on the front, back, left and right.

  When the wallpaper pasting machine is in the open leg state, if either the front or rear first lock lever 8 or the second lock lever 11 is inadvertently hit by the operator's hand or hits it from the inside, both The lock levers 8 and 11 may rotate.

  As the front (or rear) first lock lever 8 is rotated, the handle bar 14 is also rotated and the rear (or front) first lock lever 8 is also rotated. There is a possibility that the notch 9 of the lever 11 is released from the locking projection 5 and the lock is released, the leg is closed and the wallpaper pasting machine tilts or falls.

  Therefore, in the second embodiment, even if the first lock lever 8 or the second lock lever 11 is pushed from the inside, both the lock levers 8 and 11 do not rotate unless the handle bar 14 is operated. is there.

  As shown in FIG. 5, since the basic configuration is the same as that of the first embodiment, the same portions are denoted by the same reference numerals, and the description of the overlapping portions is omitted.

  A third fulcrum pin 31 and a protrusion 8a are formed on the first lock lever 8, and the handle bar 14 is pivotally supported with the third fulcrum pin 31 as an axis. The handle bar 14 is formed with a notch 14a and a protrusion 14b. The notch 14a engages with a locking protrusion 3a provided on the support member 3. In order to constantly urge the handle bar 14 in the clockwise direction, a spring 32 is hung between the first fulcrum pin 7 and the protrusion 14b provided on the handle bar 14.

  In this wallpaper pasting machine, as shown in FIG. 6A, in the open leg state, the first notch 6 of the first lock lever 8 engages with the locking projection 5 of the leg 2, and the handle bar Fourteen notches 14 a are engaged with locking protrusions 3 a provided on the support member 3.

  In this open leg state, even if the first lock lever 8 or the second lock lever 11 is pushed from the inside and the first lock lever 8 tries to rotate around the first fulcrum pin 7, the first lock lever 8 The handle bar 14 is pivotally supported by a third fulcrum pin 31 separated from the first fulcrum pin 7, and the notch 14a of the handle bar 14 is engaged with the locking projection 3a. As a result, the handle bar 14 cannot be raised. Therefore, the first lock lever 8 or the second lock lever 11 does not rotate unless the handle bar 14 is operated to release the engagement between the notch 14a and the locking projection 3a.

  When closing the leg, if the handle bar 14 is operated and rotated, as shown in FIG. 6 (b), the notch 14a of the handle bar 14 is disengaged from the locking projection 3a and further rotated. As shown in FIG. 6C, the lower portion of the handle bar 14 comes into contact with the protrusion 8a of the first lock lever 8, and the first lock lever 8 is rotated counterclockwise about the first fulcrum pin 7 as an axis. Let By this rotation, the first notch 6 of the first lock lever 8 is released from the locking projection 5 of the leg 2 and the lock is released. In this state, the leg 2 is rotated around the support shaft 4 by hand. And can be closed (see FIGS. 6D to 6F).

  When the leg 2 is completely closed, the second notch 9 of the second lock lever 11 is engaged and locked with the locking projection 5 of the leg 2, and the handle bar 14 is also supported by the notch 14a. Since it is locked by engaging with the locking projection 3a provided on the member 3, the first lock lever 8 or the second lock lever 11 cannot be pushed from the inside to rotate (see FIG. 6 (f)).

  When opening the leg, if the handle bar 14 is operated, the notch 14a of the handle bar 14 is disengaged from the locking projection 3a and the first lock lever 8 is released (counterclockwise in FIG. 6 (e)). ), The second lock lever 11 is rotated in conjunction with it, and the second notch 9 is disengaged from the locking projection 5 of the leg 2 (see FIG. 6D). ).

  In this state, the leg 2 can be rotated and opened (see FIGS. 2D, 2C, and 2B). Then, with the leg 2 fully open, the notch 14a of the handle bar 14 is engaged with the locking projection 3a, and the first notch 6 of the first lock lever 8 is the locking projection 5 of the leg 2. And the leg 2 is locked in the open state (see FIG. 2A).

(Third embodiment)
In the second embodiment described above, a notch 14a is formed in the handle bar 14 and a notch 14a is formed in the support member 3 in order to prevent inadvertent closing of the wallpaper pasting machine in the open leg state. The engaging protrusion 3a to be engaged is provided to prevent the first lock lever 8 or the second lock lever 11 from rotating.

  As shown in FIG. 7, since the basic configuration is the same as that of the second embodiment, the same portions are denoted by the same reference numerals, and the description of the overlapping portions is omitted.

  In the third embodiment, the handle bar 14 is not provided with a notch 14a as in the second embodiment, and the support member 3 is not provided with a locking projection 3a. Instead, when the handle bar 14 is pivotally supported on the fulcrum pin 31, the hole 14c of the handle bar 14 is made larger than the diameter of the fulcrum pin 31, as shown in FIG. Keep it.

  In this way, when the handle bar 14 and the first lock lever 8 are pivoted and pivotally supported, as shown in FIG. 8A, the handle bar 14 is always held by the spring 32 in the open leg state. Since it is urged clockwise, the fulcrum pin 31 is in contact with the lower right of the hole 14c of the handle bar 14.

  From the inside, the front (or rear) first lock lever 8 or the second lock lever 11 is inadvertently hit by an operator's hand or an object hits the first lock lever 8 or the second lock lever 11. When moved, as shown in FIG. 8B, even if the notch 6 of the first lock lever 8 is rotated until it is disengaged from the locking projection 5, the backlash of the handle bar 14 is present. Since the handle bar 14 starts to rotate after the fulcrum pin 31 comes into contact with the upper left of 14c, even if the handle bar 14 does not rotate or the handle bar 14 rotates slightly, the rotation angle is as follows. It is smaller than the rotation angle of the lock lever 8.

  Thus, even if the handle bar 14 is slightly rotated, the first (1) lock lever 8 on the rear side (or front side) cannot be rotated. Even if the notch 6 and the locking projection 5 are unlocked, the engagement state between the notch 6 and the locking projection 5 of the other pair of first lock levers 8 is maintained. There is no closing.

  When closing the leg, the handle bar 14 is operated, the lower part of the handle bar 14 is brought into contact with the protrusion 8a of the first lock lever 8, and the first lock lever 8 is moved in the releasing direction (FIG. 8B). When the second lock lever 11 is rotated more than the rattling in the clockwise direction), the second notch 9 is released from the locking projection 5 of the leg 2 and the lock is released. Can do.

(Fourth embodiment)
9 and 10 show a fourth embodiment of the present invention. FIG. 9 is a cross-sectional view (a) showing a vertical section perpendicular to the longitudinal direction of the leg portion and showing a vertical section along the longitudinal direction of the leg portion (b). FIG. 10 is an explanatory diagram (a) to (f) showing the opening / closing operation of the legs of the wallpaper pasting machine.

  As in the first embodiment, the wallpaper pasting machine of the fourth embodiment is composed of a pasting machine main body and legs, and the legs are composed of a frame 1 that supports the pasting machine main body and a folding type. It is comprised by the leg 2. The shaft support structure and operation of the leg 2 are the same as in the first embodiment. Each leg 2 has a frame 1 in the front-rear direction (in FIG. 9A) at a position away from the position (fulcrum position) pivotally supported by the support shaft 4 at the upper end to the lower end. The locking projections 5 are provided by welding, for example, so as to protrude inward in the left-right direction, the front-rear direction in FIG. 9B.

  The legs of the wallpaper pasting machine lock the leg 2 in the open leg state and the closed leg state, and when the leg 2 is in the open leg state to release the lock and enable the opening / closing operation. A first notch 6 that can be engaged with the locking projection 5 of the leg 2 and a second notch 9 that can be engaged with the locking projection 5 of the leg 2 when the leg 2 is in the closed leg state. The fulcrum pin (fulcrum) 7 fixed to the frame 1 can be rotated around the fulcrum pin 7, and when the leg 2 is opened, the first notch 6 is in a position where it engages with the locking projection 5 of the leg 2. The leg 2 is locked in the open state by turning, and when the leg 2 is closed, the second notch 9 is turned to a position where it engages with the locking projection 5 of the leg 2. A lock lever 18 is provided to lock the lever in a closed state, and both ends of the handle bar 14 for rotating operation are fixed to the lock levers 18 of the pair of front and rear legs 2. And a locking mechanism configured to lock lever 18 so as to rotate by the operation of the bundle rod 14. Then, as shown in FIG. 9A, a spring member 7a is attached to the fulcrum pin 7 and one end thereof is hooked on the lock lever 18, and the lock lever 18 is locked in the locking direction (clockwise direction in FIG. 9B). ).

  As shown in FIG. 10, the wallpaper pasting machine operates the handle bar 14 to rotate the lock lever 18 in the locking direction (clockwise in FIG. 10A) in the open leg state. By engaging the notch 6 with the locking projection 5 of the leg 2, the leg 2 is locked in the open leg state (see FIG. 10A).

  When the leg is closed, the handle bar 14 is operated against the urging force of the spring member 7a to rotate the lock lever 18 in the releasing direction (counterclockwise in FIG. 10B). The notch 6 is released from the locking projection 5 of the leg 2 and the lock is released. In this state, the leg 2 is rotated by the hand around the support shaft 4 (upper fulcrum) and closed. (See FIGS. 10B, 10C, and 10D).

  When the leg 2 is completely closed, the second notch 9 can be engaged with the locking projection 5 of the leg 2 (see FIG. 10E).

  In this state, the lock lever 18 is rotated in the locking direction (clockwise in FIG. 10 (f)) by the urging force of the spring member 7a, and the second notch 9 is engaged with the locking protrusion 5 of the leg 2. Accordingly, the leg 2 is locked in the closed state (see FIG. 10F).

  When the leg is opened, the handle bar 14 is operated to rotate the lock lever 18 in the releasing direction (counterclockwise in FIG. 10 (e)). The lock is released from the projection 5 (see FIG. 10D).

  In this state, the leg 2 can be rotated and opened (see FIGS. 10D, 10C, and 10B).

  Then, with the leg 2 fully open, the lock lever 18 is rotated in the locking direction (clockwise in FIG. 10A) by the urging force of the spring member 7a, and the first notch 6 is the leg 2 The leg 2 is locked in the open state by engaging with the locking projection 5 (see FIG. 10A).

  FIG. 11: is sectional drawing which shows the vertical cross section along the leg part longitudinal direction which shows the structure of the locking mechanism of the leg part of the wallpaper pasting machine of the modification of 4th Embodiment of this invention.

  In this modified example, the wallpaper pasting machine of the fourth embodiment is provided with a spring 15 (biasing means) for biasing the leg 2 in the closing leg direction. One end of the spring 15 is hooked on a pin 16 provided on the frame 1 side, and the other end is hooked on a pin 17 provided on the tip side of the locking protrusion 5 of the leg 2.

  The opening and closing operation of the legs of this wallpaper pasting machine is basically the same as that of the fourth embodiment described with reference to FIG. 10, but provided with a spring 15 for urging the legs 2 in the closing direction. For example, when releasing the lock of the leg 2 and taking down the wallpaper pasting machine from the car, the leg 2 is prevented from suddenly opening with its own weight, so that the work is not hindered. it can. The action of the spring 15 in this case is the same as that described in the modification of the first embodiment.

(Fifth embodiment)
In the fourth embodiment described above, in order to lock the wallpaper pasting machine in an open leg state or a closed leg state, four sets of lock mechanisms including lock levers 18 are provided on the front, rear, left and right sides for each of the four legs 2. Yes.

  When the wallpaper pasting machine is in the open state, the lock lever 18 may rotate if either the front or rear lock lever 18 is inadvertently hit by an operator's hand or an object is hit from the inside. is there. This rotation is transmitted to the lock lever 18 on the opposite side via the handle bar 14 and both the front and rear lock levers 18 are rotated to engage the first notch 6 and the locking projection 5 of the leg 2. The lock may be released, the lock may be released, the leg may close, and the wallpaper pasting machine may tilt or fall.

  Therefore, in the fifth embodiment, in order to reduce the transmission of the rotation of one lock lever 18 to the other lock lever 18 via the handle bar 14, the handle bar 14 is moved relative to the lock lever 18. Attach with rattling.

  As shown in FIG. 12, when the handle bar 14 is attached to the lock lever 18, two pins 18a are implanted in the lock lever 18, a long hole 14c and a round hole 14d are formed in the handle bar 14, and the lock lever 18 The two pins 18a are fitted into each other, and the handle bar 14 is attached to the lock lever 18 with rattling. Note that the two holes in the handle bar 14 may be long holes.

  Either one of the front and rear lock levers 18 is inadvertently hit by an operator's hand from inside, or an object hits the object and rotates the lock lever 18 so that the notch 6 of one of the lock levers 18 has the locking protrusion 5. Even if the handle bar 14 is rotated until it is disengaged, there is a backlash between the handle bar 14 and the handle bar 14 does not rotate or even if the handle bar 14 rotates slightly, the rotation angle is Smaller than 18 rotation angles.

  Thus, even if the handle bar 14 is slightly rotated, the lock lever 18 on the opposite side cannot be rotated. Even if the lock with the protrusion 5 is released, the notch 6 of the other set of lock levers 18 and the engaging protrusion 5 are kept engaged, so that the leg is not closed.

  When closing the legs, if the handle bar 14 is operated and the lock lever 18 is rotated more than the backlash in the release direction, both lock levers 18 are rotated, and the first notch 6 is the locking protrusion of the leg 2. Since it is released from 5 and the lock is released, it can be closed.

  Although the embodiment has been described with reference to the illustrated example, the present invention is not limited to this and can be implemented in various modes.

Sectional view showing a vertical section along the cross section (a) and the frame longitudinal illustrating a perpendicular cross-section in a first frame longitudinal showing the configuration of a locking mechanism of the legs of wallpaper pasting machine embodiments of the present invention ( b). It is explanatory drawing (a)-(f) which shows the opening / closing operation | movement of the leg part of the wallpaper pasting machine of 1st Embodiment of this invention. It shows a cross-sectional view (a) and the frame longitudinal direction along a vertical cross section showing a perpendicular cross-section to a frame longitudinal illustrating the configuration of the locking mechanism of the legs of the variation machine with wallpaper paste according to the first embodiment of the present invention It is sectional drawing (b). It is explanatory drawing (a)-(f) which shows the opening / closing operation | movement of the leg part of the wallpaper pasting machine of the modification of 1st Embodiment of this invention. Sectional view showing a vertical section along the cross section (a) and the frame longitudinal illustrating a perpendicular cross-section to the second frame longitudinal showing the configuration of a locking mechanism of the legs of wallpaper pasting machine embodiments of the present invention ( b). It is explanatory drawing (a)-(f) which shows the opening / closing operation | movement of the leg part of the wallpaper pasting machine of 2nd Embodiment of this invention. Sectional view (a) and a sectional view showing a vertical section along the frame longitudinal third shows a perpendicular cross-section to a frame longitudinal illustrating a configuration of a locking mechanism of the legs of wallpaper pasting machine embodiments of the present invention ( b). It is sectional drawing which shows the vertical cross section which shows the principal part of the locking mechanism of the leg part of the wallpaper pasting machine of 3rd Embodiment of this invention. Sectional view showing a vertical section along the cross section (a) and the frame longitudinal illustrating a perpendicular cross-section in the fourth frame longitudinal showing the configuration of a locking mechanism of the legs of wallpaper pasting machine embodiments of the present invention ( b). It is explanatory drawing (a)-(f) which shows the opening / closing operation | movement of the leg part of the wallpaper pasting machine of 4th Embodiment of this invention. It is sectional drawing seen in the vertical cross section along the leg part longitudinal direction which shows the structure of the locking mechanism of the leg part of the wallpaper pasting machine of the modification of 4th Embodiment of this invention. It is sectional drawing which shows the vertical cross section which shows the principal part of the locking mechanism of the leg part of the wallpaper pasting machine of 5th Embodiment of this invention. It is a side view which shows an example of the conventional wallpaper pasting machine.

Explanation of symbols

1 Frame 2 Leg 3 Support member
3a Locking projection 4 Support shaft 5 Locking projection 6 First notch 7 First fulcrum pin (first fulcrum)
7a Spring member 8 First lock lever 8a Protrusion 9 Second notch
10 Second fulcrum pin (second fulcrum)
11 Second lock lever
12 Slotted hole
13 pin
14 Handlebar
14a Notch
15 Spring
16 pin
17 pin
18 Lock lever
31 pin
32 Spring

Claims (6)

In a wallpaper pasting machine provided with a leg that includes a frame that supports the pasting machine main body and a leg that is attached to the four corners of the frame and that has a leg that is pivotally supported at its upper end so that it can be opened and closed in the longitudinal direction of the frame.
A locking protrusion provided at a predetermined distance from the upper end pivot support position of the leg to the lower end side;
A first fulcrum having a first notch that can be engaged with the locking projection of the leg when the leg is in an open state and an elongated hole or pin at the tip, and fixed to the frame side. A first lock lever pivotable about the center;
A second notch that can be engaged with the locking projection of the leg when the leg is in a closed state and a pin or elongated hole at the tip, and centered on a second fulcrum fixed to the frame side A lock mechanism comprising a second lock lever that is pivotable,
The distal end portion of the first lock lever and the distal end portion of the second lock lever are connected by the engagement of the elongated hole and the pin, and the first lock lever and the second lock lever are interlocked to rotate in opposite directions. And when the leg is opened, the first notch of the first lock lever engages with the locking projection of the leg to lock the leg in the open state, A wallpaper pasting machine characterized in that when the leg is closed, the second notch of the second lock lever engages with the locking projection of the leg to lock the leg in the closed state. In a wallpaper pasting machine provided with a leg that includes a frame that supports the pasting machine main body and a leg that is attached to the four corners of the frame and that has a leg that is pivotally supported at its upper end so that it can be opened and closed in the longitudinal direction of the frame.
A locking protrusion provided at a predetermined distance from the upper end pivot support position of the leg to the lower end side;
A first fulcrum having a first notch that can be engaged with the locking projection of the leg when the leg is in an open state and an elongated hole or pin at the tip, and fixed to the frame side. A first lock lever that is pivotable about a center and has a second pin and a protrusion formed between a pivot center of the first fulcrum and the first notch;
A second notch that can be engaged with the locking projection of the leg when the leg is in a closed state and a pin or elongated hole at the tip, and centered on a second fulcrum fixed to the frame side A second lock lever that is pivotable to
A handle bar that is pivotally supported by the second pin of the first lock lever, forms a notch that engages with a locking projection provided on the frame, and a lower end of the handle bar that abuts the projection of the first lock lever; ,
A locking mechanism comprising a spring that applies rotational force between the handle bar and the first lock lever to engage a notch of the handle bar with the locking protrusion provided on the frame;
The distal end portion of the first lock lever and the distal end portion of the second lock lever are connected by the engagement of the elongated hole and the pin, and the first lock lever and the second lock lever are interlocked to rotate in opposite directions. And when the leg is opened, the first notch of the first lock lever engages with the locking projection of the leg to lock the leg in the open state, When the leg is closed, the second notch of the second lock lever engages with the locking projection of the leg to lock the leg in the closed leg state, and from the first lock lever side in the open leg state. The wallpaper pasting machine characterized in that the rotation is prevented by the engagement between the notch of the handle bar and the locking projection. In a wallpaper pasting machine provided with a leg that includes a frame that supports the pasting machine main body and a leg that is attached to the four corners of the frame and that has a leg that is pivotally supported at its upper end so that it can be opened and closed in the longitudinal direction of the frame.
A locking protrusion provided at a predetermined distance from the upper end pivot support position of the leg to the lower end side;
A first fulcrum having a first notch that can be engaged with the locking projection of the leg when the leg is in an open state and an elongated hole or pin at the tip, and fixed to the frame side. A first lock lever that is pivotable about a center and has a second pin and a protrusion formed between a pivot center of the first fulcrum and the first notch;
A second notch that is engageable with the locking protrusion of the leg when the leg is in a closed state and a second pin or slot at the tip, and is fixed to the frame side A second lock lever pivotable about a fulcrum;
A handle bar that is pivotally supported by the second pin of the first lock lever with a backlash, and whose lower end is in contact with the protrusion of the first lock lever;
A lock that is provided with a spring that applies a rotational force between the handle bar and the first lock lever to engage a notch of the handle bar with the locking projection provided on the frame, and is interlocked by the handle bar. A mechanism is provided on the front and back of the gluing machine body,
The distal end portion of the first lock lever and the distal end portion of the second lock lever are connected by the engagement of the elongated hole and the pin, and the first lock lever and the second lock lever are interlocked to rotate in opposite directions. And when the leg is opened, the first notch of the first lock lever engages with the locking projection of the leg to lock the leg in the open state, When the leg is closed, the second notch of the second lock lever engages with the locking projection of the leg to lock the leg in the closed state, and the handle bar is moved to the second lock lever. By pivotally supporting the pin with rattling, the rotation from the first lock lever side of either the front or rear locking mechanism in the open leg state is not transmitted to the first lock lever on the opposite side. A wallpaper pasting machine characterized by comprising. In a wallpaper pasting machine provided with a leg that includes a frame that supports the pasting machine main body and a leg that is attached to the four corners of the frame and that has a leg that is pivotally supported at its upper end so that it can be opened and closed in the longitudinal direction of the frame.
A locking protrusion provided at a predetermined distance from the upper end pivot support position of the leg to the lower end side;
A first notch engageable with the locking protrusion of the leg when the leg is in an open state; and engageable with the locking protrusion of the leg when the leg is in a closed leg; A lock lever that has a second notch and is rotatable about a fulcrum fixed to the frame side,
When the leg is opened, the leg is locked in the open state by rotating the first notch to a position where the first notch engages with the locking projection of the leg, and the leg is closed. A wallpaper pasting machine, wherein the leg is locked in a closed state by rotating the second notch to a position where the second notch engages with the locking projection of the leg. In a wallpaper pasting machine provided with a leg that includes a frame that supports the pasting machine main body and a leg that is attached to the four corners of the frame and that has a leg that is pivotally supported at its upper end so that it can be opened and closed in the longitudinal direction of the frame.
A locking protrusion provided at a predetermined distance from the upper end pivot support position of the leg to the lower end side;
A first notch engageable with the locking protrusion of the leg when the leg is in an open state; and engageable with the locking protrusion of the leg when the leg is in a closed leg; A lock lever that is rotatable about a fulcrum fixed on the frame side, and that is interlocked by a handle bar coupled to the lock lever. And
By connecting the lock lever and the handle bar with a rattle, the rotation from the first lock lever side of either of the front and rear lock mechanisms in the open leg state is the first lock on the opposite side. A wallpaper gluing machine that is configured not to transmit to the lever. The wallpaper pasting machine according to any one of claims 1 to 5, further comprising an urging means for urging the leg in a closed leg direction.

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